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E-commerce","智能客服：通过自然语言对话理解用户需求，提供产品推荐、订单查询、退换货支持等服务，提升客户满意度。\n个性化营销推荐：基于用户浏览、购买、偏好等行为数据，生成个性化推荐内容与优惠策略，提高转化率和客单价。\n商品内容生成：自动撰写商品标题、卖点描述、使用说明等内容，适用于海量SKU的内容生产与多语言发布。","buy",{"id":520,"value":520,"name":521,"intro":522,"add_value":523,"describe":8},10,"Security & Protection",null,"safe-shield-line",{"id":525,"value":525,"name":526,"intro":522,"add_value":527,"describe":8},11,"Environment & Climate","weather",{"id":529,"value":529,"name":530,"intro":522,"add_value":531,"describe":8},12,"Energy & Resource","energy-leaf",{"id":533,"value":533,"name":534,"intro":522,"add_value":535,"describe":8},13,"Express & Logistics","speed-outline",{"id":537,"value":537,"name":538,"intro":522,"add_value":539,"describe":8},15,"Sports","baseball-outline",{"id":541,"value":541,"name":542,"intro":522,"add_value":543,"describe":8},16,"General Data","daily-booth",{"id":545,"value":545,"name":546,"intro":522,"add_value":547,"describe":8},17,"Content & 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Culture","lang",{"id":564,"unique_code":565,"title":566,"icon":8,"intro":567,"cate":483,"detail":568,"create_time":569,"update_time":570,"price":571,"view_count":553,"download_count":572,"unit":572,"amount":573,"is_create_order":572,"enterprise_id":488,"seo_keywords":574,"seo_description":575,"data_format":576,"file_size":577,"apply_scene":578,"training_task":579,"version":580,"dataset_type_id":492,"dataset_scene_id":505,"sample_file":581,"banner":8,"unit_name":8,"cate_name":449,"icon_url":8,"banner_url":8,"sample_file_url":8,"data_dict":582,"qa_list":634,"sample_metadatas":651,"text_sample_content":697,"enterprise_name":698,"enterprise_logo":699,"data_distribution":700},1235,"d24ed582660ca6db0289d937b174d87d","Vocational Education Digital Textbook Workflow and Safety Knowledge QA Dataset","Turn vocational digital textbook content into workflow and safety question-answer examples with source excerpts to support domain-specific model training.","\u003Cp>This dataset provides learner-focused professional knowledge questions and answers based on vocational education web textbooks, covering equipment operation, process workflows, technical requirements, risk warnings, and fault prevention. Web text is organized into fields for knowledge categories, operation steps, safety requirements, risks, preventive measures, and supporting source excerpts, making the data suitable for domain-specific fine-tuning, question answering, and evaluation of safety-procedure understanding. The sample count and subject coverage are not specified in the available information; the delivered data determines the actual scope.\u003C\u002Fp>","2026-10-15 18:05:08","2026-10-19 17:19:10","0.00",0,5000,"vocational education QA dataset,digital textbook data,equipment operation QA,process workflow knowledge,safety compliance QA,vocational education SFT,fault prevention knowledge,domain-specific question answering","Vocational textbook QA data covering equipment operation, process workflows, safety requirements, and fault prevention, with supporting source excerpts.","JSON","0.3GB","vocational education, workplace safety training, digital textbook learning","question answering, knowledge extraction, domain-specific fine-tuning","V1.0","rivo\u002Fsample-packages\u002F9587c288-7600-4671-ac77-9984404e3b11\u002F20261015.zip",[583,588,593,598,603,609,614,619,624,629],{"id":572,"name":584,"field":585,"intro":586,"type":587},"File Name","file_name","File name","string",{"id":589,"name":590,"field":591,"intro":592,"type":587},9007,"Answer","answer","An accurate and complete answer based on the source textbook content and consistent with relevant professional rules.",{"id":594,"name":595,"field":596,"intro":597,"type":587},9008,"Question","question","A professional knowledge question for learners, derived from the source textbook content.",{"id":599,"name":600,"field":601,"intro":602,"type":587},9009,"Source Textbook Webpage","source_html","Original vocational education textbook webpage content serving as the source for the questions and answers, with web text retained as the natural content format.",{"id":604,"name":605,"field":606,"intro":607,"type":608},9010,"Risk Warnings","risk_warnings","Potential hazards, possible consequences, and other risk information highlighted in the textbook content.","array",{"id":610,"name":611,"field":612,"intro":613,"type":608},9011,"Operation or Workflow Steps","operation_steps","Equipment operation or process steps extracted from the answer and ordered by execution sequence; may be an empty array for non-procedural knowledge.",{"id":615,"name":616,"field":617,"intro":618,"type":587},9012,"Supporting Source Excerpt","evidence_excerpt","A key excerpt from the textbook that supports the question and answer and allows their source to be traced.",{"id":620,"name":621,"field":622,"intro":623,"type":608},9013,"Fault Prevention Measures","fault_prevention","Measures extracted from the textbook content to help prevent equipment faults, process deviations, or operational errors.",{"id":625,"name":626,"field":627,"intro":628,"type":587},9014,"Knowledge Category","knowledge_category","The category assigned to the type of knowledge covered by the question and answer.",{"id":630,"name":631,"field":632,"intro":633,"type":608},9015,"Safety and Compliance Requirements","safety_requirements","Safety practices, technical standards, work restrictions, or compliance requirements extracted from the textbook content.",[635,639,643,647],{"id":636,"question":637,"answer":638},6391,"What content does the dataset cover?","It contains professional knowledge questions and answers based on vocational education web textbooks. Topics include equipment operation, process workflows, technical requirements, safety rules, risk warnings, and fault prevention, with source excerpts provided as supporting evidence.",{"id":640,"question":641,"answer":642},6392,"Which structured fields are included?","Fields include the source textbook webpage, question, answer, knowledge category, operation or workflow steps, safety and compliance requirements, risk warnings, fault prevention measures, and a supporting source excerpt. Step and requirement fields can be represented as arrays; the steps field may be empty for non-procedural content.",{"id":644,"question":645,"answer":646},6393,"How can I assess the dataset size and quality?","The available product information does not specify a sample count or subject coverage, so the delivered data determines the actual scope. Source excerpts make answers traceable to their textbook content; sample review against the target subject is recommended before production use.",{"id":648,"question":649,"answer":650},6394,"How can I obtain the data, and what license applies?","Please refer to the product listing or transaction agreement for availability, license type, and permitted uses. No specific license terms are provided in the current dataset description, so confirm the applicable authorization and compliance requirements before use.",[652,669,683],{"id":653,"relate_table":654,"relate_id":655,"file_size":572,"file_name":656,"path":8,"duration":572,"cate":483,"file_format":657,"audio_rate":8,"audio_channel":522,"audio_bit_depth":522,"quality":8,"annotation":658,"cate_name":659,"answer":660,"question":661,"source_html":662,"risk_warnings":663,"operation_steps":664,"evidence_excerpt":665,"fault_prevention":666,"knowledge_category":667,"safety_requirements":668},15105,"union_cubo",1001978030,"样例_3.json","json","{\"answer\": \"First, observe the pressure gauge to confirm that the supply air pressure is within the range specified in the equipment manual and does not exceed the rated pressure. Before servicing, shut off the air source and safely release residual pressure; then check the filter for accumulated water and clogged filter element, and drain, clean, or replace the filter element according to maintenance requirements. With pressure released, check the air tubes and fittings for leaks; if pipeline damage or fitting seal failure is found, repair or replace it promptly. Next, check the operating status of the flow control valve and solenoid valve, and adjust gradually according to the equipment instructions; do not forcibly turn the valve components. After restoring air supply, first perform a no-load action test to confirm that clamping and releasing are smooth and there is no obvious air leakage, and then put it into operation with a workpiece. Daily routine should include regular inspection of supply air pressure, filters, pipeline fittings, and flow control valves, and keeping the air source clean and dry.\", \"question\": \"How can slow operation of a pneumatic clamping device be prevented and troubleshot?\", \"source_html\": \"\u003Chtml>\u003Chead>\u003Ctitle>Prevention and Inspection of Slow Action of Pneumatic Clamping Device\u003C\u002Ftitle>\u003C\u002Fhead>\u003Cbody>\u003Ch1>Prevention and Inspection of Slow Action of Pneumatic Clamping Device\u003C\u002Fh1>\u003Cp>Slow action of a pneumatic clamping device is often related to insufficient supply air pressure, clogged filter, air leakage in pipelines, or improper flow adjustment.\u003C\u002Fp>\u003Col>\u003Cli>Observe the pressure gauge to confirm that the supply air pressure is within the range specified in the equipment manual and does not exceed the rated pressure.\u003C\u002Fli>\u003Cli>Before servicing pipelines, filters, or valves, shut off the air source and safely release residual pressure.\u003C\u002Fli>\u003Cli>Check the filter for accumulated water and clogged filter element, and drain, clean, or replace the filter element according to maintenance requirements.\u003C\u002Fli>\u003Cli>With pressure released, check the air tubes and fittings for leaks; if pipeline damage or fitting seal failure is found, replace or repair it promptly.\u003C\u002Fli>\u003Cli>Check the operating status of the flow control valve and solenoid valve, and adjust gradually according to the equipment instructions; do not forcibly turn the valve components.\u003C\u002Fli>\u003Cli>After restoring air supply, first perform a no-load action test to confirm that clamping and releasing are smooth and there is no obvious air leakage, and then put it into operation with a workpiece.\u003C\u002Fli>\u003C\u002Fol>\u003Ch2>Safety Precautions\u003C\u002Fh2>\u003Cul>\u003Cli>Before servicing, the air source must be cut off and residual pressure released; attach a lockout\u002Ftag if necessary.\u003C\u002Fli>\u003Cli>While the cylinder is moving, do not place hands in the clamping or shearing areas of the fixture, workpiece, or cylinder.\u003C\u002Fli>\u003Cli>If abnormal pressure, pipeline rupture, or loss of fixture control is found, stop the equipment immediately and report to the instructor.\u003C\u002Fli>\u003C\u002Ful>\u003Ch2>Preventive Measures\u003C\u002Fh2>\u003Cp>Regularly inspect supply air pressure, filters, pipeline fittings, and flow control valves, keep the air source clean and dry, and avoid continuing work before air leakage or abnormal pressure has been eliminated.\u003C\u002Fp>\u003C\u002Fbody>\u003C\u002Fhtml>\", \"risk_warnings\": \"[\\\"Disassembling pipelines or valve components without releasing residual compressed air may cause fittings to pop out, air impact, or sudden movement of parts.\\\", \\\"Slow clamping action or insufficient pressure may cause the workpiece to be held insecurely and shift during machining or handling.\\\", \\\"Putting hands into the fixture movement area may cause crushing or shearing injuries due to sudden cylinder action.\\\", \\\"Continuing to operate with a clogged filter, pipeline leakage, or abnormal pressure may cause clamping failure and loss of equipment motion control.\\\"]\", \"operation_steps\": \"[\\\"Observe the pressure gauge to confirm that the supply air pressure is within the equipment-specified range and does not exceed the rated pressure.\\\", \\\"After shutting off the air source and releasing residual pressure, check the filter for accumulated water and clogged filter element.\\\", \\\"Drain, clean, or replace the filter element, and with pressure released check the air tubes and fittings for leaks.\\\", \\\"Repair or replace damaged pipelines and failed seals.\\\", \\\"Check the flow control valve and solenoid valve, and adjust gradually according to the equipment instructions.\\\", \\\"After restoring air supply, perform a no-load action test to confirm that clamping and releasing are smooth and there is no obvious air leakage, and then put it into operation with a workpiece.\\\"]\", \"evidence_excerpt\": \"Slow action of a pneumatic clamping device is often related to insufficient supply air pressure, clogged filter, air leakage in pipelines, or improper flow adjustment. Before servicing pipelines, filters, or valves, shut off the air source and safely release residual pressure.\", \"fault_prevention\": \"[\\\"Regularly inspect supply air pressure, filters, pipeline fittings, and flow control valves, and handle abnormalities promptly.\\\", \\\"Drain, clean, or replace the filter element according to maintenance requirements to keep the air source clean and dry.\\\", \\\"With pressure released, check the sealing of pipelines and fittings, and repair any damage or leakage promptly.\\\", \\\"After restoring air supply, perform a no-load test first, and only after confirming that clamping and releasing actions are smooth should work with a workpiece be carried out.\\\", \\\"Do not continue using the clamping device before air leakage or abnormal pressure has been eliminated.\\\"]\", \"knowledge_category\": \"Fault Prevention\", \"safety_requirements\": \"[\\\"Before servicing pipelines, filters, or valves, the air source must be shut off and residual pressure safely released; attach a lockout\u002Ftag if necessary.\\\", \\\"Do not exceed the rated supply air pressure specified by the equipment.\\\", \\\"While the cylinder is moving, do not place hands in the clamping or shearing areas of the fixture, workpiece, or cylinder.\\\", \\\"If abnormal pressure, pipeline rupture, or loss of fixture control is found, stop the equipment immediately and report to the instructor.\\\", \\\"When adjusting valve components, follow the equipment instructions and proceed gradually; do not forcibly turn them.\\\"]\"}","文本","First, observe the pressure gauge to confirm that the supply air pressure is within the range specified in the equipment manual and does not exceed the rated pressure. Before servicing, shut off the air source and safely release residual pressure; then check the filter for accumulated water and clogged filter element, and drain, clean, or replace the filter element according to maintenance requirements. With pressure released, check the air tubes and fittings for leaks; if pipeline damage or fitting seal failure is found, repair or replace it promptly. Next, check the operating status of the flow control valve and solenoid valve, and adjust gradually according to the equipment instructions; do not forcibly turn the valve components. After restoring air supply, first perform a no-load action test to confirm that clamping and releasing are smooth and there is no obvious air leakage, and then put it into operation with a workpiece. Daily routine should include regular inspection of supply air pressure, filters, pipeline fittings, and flow control valves, and keeping the air source clean and dry.","How can slow operation of a pneumatic clamping device be prevented and troubleshot?","\u003Chtml>\u003Chead>\u003Ctitle>Prevention and Inspection of Slow Action of Pneumatic Clamping Device\u003C\u002Ftitle>\u003C\u002Fhead>\u003Cbody>\u003Ch1>Prevention and Inspection of Slow Action of Pneumatic Clamping Device\u003C\u002Fh1>\u003Cp>Slow action of a pneumatic clamping device is often related to insufficient supply air pressure, clogged filter, air leakage in pipelines, or improper flow adjustment.\u003C\u002Fp>\u003Col>\u003Cli>Observe the pressure gauge to confirm that the supply air pressure is within the range specified in the equipment manual and does not exceed the rated pressure.\u003C\u002Fli>\u003Cli>Before servicing pipelines, filters, or valves, shut off the air source and safely release residual pressure.\u003C\u002Fli>\u003Cli>Check the filter for accumulated water and clogged filter element, and drain, clean, or replace the filter element according to maintenance requirements.\u003C\u002Fli>\u003Cli>With pressure released, check the air tubes and fittings for leaks; if pipeline damage or fitting seal failure is found, replace or repair it promptly.\u003C\u002Fli>\u003Cli>Check the operating status of the flow control valve and solenoid valve, and adjust gradually according to the equipment instructions; do not forcibly turn the valve components.\u003C\u002Fli>\u003Cli>After restoring air supply, first perform a no-load action test to confirm that clamping and releasing are smooth and there is no obvious air leakage, and then put it into operation with a workpiece.\u003C\u002Fli>\u003C\u002Fol>\u003Ch2>Safety Precautions\u003C\u002Fh2>\u003Cul>\u003Cli>Before servicing, the air source must be cut off and residual pressure released; attach a lockout\u002Ftag if necessary.\u003C\u002Fli>\u003Cli>While the cylinder is moving, do not place hands in the clamping or shearing areas of the fixture, workpiece, or cylinder.\u003C\u002Fli>\u003Cli>If abnormal pressure, pipeline rupture, or loss of fixture control is found, stop the equipment immediately and report to the instructor.\u003C\u002Fli>\u003C\u002Ful>\u003Ch2>Preventive Measures\u003C\u002Fh2>\u003Cp>Regularly inspect supply air pressure, filters, pipeline fittings, and flow control valves, keep the air source clean and dry, and avoid continuing work before air leakage or abnormal pressure has been eliminated.\u003C\u002Fp>\u003C\u002Fbody>\u003C\u002Fhtml>","[\"Disassembling pipelines or valve components without releasing residual compressed air may cause fittings to pop out, air impact, or sudden movement of parts.\", \"Slow clamping action or insufficient pressure may cause the workpiece to be held insecurely and shift during machining or handling.\", \"Putting hands into the fixture movement area may cause crushing or shearing injuries due to sudden cylinder action.\", \"Continuing to operate with a clogged filter, pipeline leakage, or abnormal pressure may cause clamping failure and loss of equipment motion control.\"]","[\"Observe the pressure gauge to confirm that the supply air pressure is within the equipment-specified range and does not exceed the rated pressure.\", \"After shutting off the air source and releasing residual pressure, check the filter for accumulated water and clogged filter element.\", \"Drain, clean, or replace the filter element, and with pressure released check the air tubes and fittings for leaks.\", \"Repair or replace damaged pipelines and failed seals.\", \"Check the flow control valve and solenoid valve, and adjust gradually according to the equipment instructions.\", \"After restoring air supply, perform a no-load action test to confirm that clamping and releasing are smooth and there is no obvious air leakage, and then put it into operation with a workpiece.\"]","Slow action of a pneumatic clamping device is often related to insufficient supply air pressure, clogged filter, air leakage in pipelines, or improper flow adjustment. Before servicing pipelines, filters, or valves, shut off the air source and safely release residual pressure.","[\"Regularly inspect supply air pressure, filters, pipeline fittings, and flow control valves, and handle abnormalities promptly.\", \"Drain, clean, or replace the filter element according to maintenance requirements to keep the air source clean and dry.\", \"With pressure released, check the sealing of pipelines and fittings, and repair any damage or leakage promptly.\", \"After restoring air supply, perform a no-load test first, and only after confirming that clamping and releasing actions are smooth should work with a workpiece be carried out.\", \"Do not continue using the clamping device before air leakage or abnormal pressure has been eliminated.\"]","Fault Prevention","[\"Before servicing pipelines, filters, or valves, the air source must be shut off and residual pressure safely released; attach a lockout\u002Ftag if necessary.\", \"Do not exceed the rated supply air pressure specified by the equipment.\", \"While the cylinder is moving, do not place hands in the clamping or shearing areas of the fixture, workpiece, or cylinder.\", \"If abnormal pressure, pipeline rupture, or loss of fixture control is found, stop the equipment immediately and report to the instructor.\", \"When adjusting valve components, follow the equipment instructions and proceed gradually; do not forcibly turn them.\"]",{"id":670,"relate_table":654,"relate_id":671,"file_size":572,"file_name":672,"path":8,"duration":572,"cate":483,"file_format":657,"audio_rate":8,"audio_channel":522,"audio_bit_depth":522,"quality":8,"annotation":673,"cate_name":659,"answer":674,"question":675,"source_html":676,"risk_warnings":677,"operation_steps":678,"evidence_excerpt":679,"fault_prevention":680,"knowledge_category":681,"safety_requirements":682},15104,1452213429,"样例_2.json","{\"answer\": \"Before work, clean the welding area and remove combustibles; if they cannot be moved, assign a dedicated watcher and prepare fire extinguishing equipment. Then check ventilation conditions and turn on local exhaust ventilation if necessary. Operators should wear intact welding masks, insulating gloves, flame-retardant work clothing, and safety shoes, and inspect the welding machine casing, welding cables, and electrode holder to confirm that the casing is reliably grounded and the insulation of cables and electrode holder is not damaged. Then select the electrode and welding current according to the process card, connect the welding cables and workpiece grounding conductor, and only after confirming that the electrode holder is well insulated and connections are secure may arc striking begin. Do not touch live components with bare hands in a damp environment, and do not weld on closed or hazardous containers that have not been cleaned and purged; before adjusting current or servicing the welding machine, the power supply must be cut off.\", \"question\": \"What inspections and safety preparations should be completed before manual metal arc welding?\", \"source_html\": \"\u003Chtml>\u003Chead>\u003Ctitle>Preparation Before Manual Metal Arc Welding\u003C\u002Ftitle>\u003C\u002Fhead>\u003Cbody>\u003Ch1>Preparation Before Manual Metal Arc Welding\u003C\u002Fh1>\u003Cp>Before welding, inspect the welding machine casing, welding cables, and electrode holder. The welding machine casing must be reliably grounded, and the insulation of cables and electrode holder must not be damaged.\u003C\u002Fp>\u003Col>\u003Cli>Clean the welding area and remove combustible materials nearby; if they cannot be moved, assign a dedicated watcher and prepare fire extinguishing equipment.\u003C\u002Fli>\u003Cli>Check the ventilation of the workplace and turn on local exhaust ventilation if necessary.\u003C\u002Fli>\u003Cli>Wear a welding mask, insulating gloves, flame-retardant work clothing, and safety shoes, and confirm that protective equipment is intact.\u003C\u002Fli>\u003Cli>Select the electrode and welding current according to the process card, and connect the welding cables and workpiece grounding conductor.\u003C\u002Fli>\u003Cli>Only after confirming that the electrode holder is well insulated and the connections are secure may arc striking begin.\u003C\u002Fli>\u003C\u002Fol>\u003Ch2>Specification Requirements\u003C\u002Fh2>\u003Cul>\u003Cli>It is prohibited to touch live welding components with bare hands in a damp environment.\u003C\u002Fli>\u003Cli>Welding is strictly prohibited on closed containers or containers that have held flammable or explosive substances and have not been cleaned and purged.\u003C\u002Fli>\u003Cli>Before adjusting welding current or servicing the welding machine, the power supply must be cut off.\u003C\u002Fli>\u003Cli>The welding area should be kept ventilated, and operators must not look directly at the arc.\u003C\u002Fli>\u003C\u002Ful>\u003Ch2>Fault Prevention\u003C\u002Fh2>\u003Cp>Before welding, confirm that cable connections are secure, workpiece grounding is reliable, and the welding surface is clean, and set the welding current according to the process card to reduce arc striking difficulty, arc interruption, and weld defects.\u003C\u002Fp>\u003C\u002Fbody>\u003C\u002Fhtml>\", \"risk_warnings\": \"[\\\"Poor grounding of the welding machine, damaged cables, or working in a damp environment may cause electric shock.\\\", \\\"Not wearing a mask or looking directly at the arc may cause arc burns to the eyes and face.\\\", \\\"Welding sparks contacting nearby combustibles may cause a fire.\\\", \\\"Welding when flammable substances remain in a closed container may cause combustion or explosion.\\\", \\\"Poor ventilation may cause welding fume to accumulate in the work area and harm respiratory health.\\\"]\", \"operation_steps\": \"[\\\"Clean the welding area and remove combustibles; if they cannot be moved, assign a dedicated watcher and prepare fire extinguishing equipment.\\\", \\\"Check ventilation conditions and turn on local exhaust ventilation if necessary.\\\", \\\"Wear a welding mask, insulating gloves, flame-retardant work clothing, and safety shoes.\\\", \\\"Inspect the welding machine casing, welding cables, and electrode holder, and confirm that grounding, insulation, and connections are in good condition.\\\", \\\"Select the electrode and welding current according to the process card, and connect the welding cables and workpiece grounding conductor.\\\", \\\"After confirming that the electrode holder is well insulated and connections are secure, begin arc striking.\\\"]\", \"evidence_excerpt\": \"The welding machine casing must be reliably grounded, and the insulation of welding cables and electrode holder must not be damaged; the welding area should be kept ventilated, and combustibles nearby should be removed; if they cannot be removed, assign a dedicated watcher.\", \"fault_prevention\": \"[\\\"Before welding, check that welding cables are securely connected and workpiece grounding is reliable to avoid arc striking difficulty and arc instability.\\\", \\\"Clean the welding surface and set the welding current according to the process card to reduce arc interruption and weld defects.\\\", \\\"Inspect the insulation of the electrode holder and the condition of the welding machine casing; if damage or abnormality is found, stop using it and repair it first.\\\", \\\"Before finishing work or servicing, cut off the power supply to prevent the equipment from being live and from accidental startup.\\\"]\", \"knowledge_category\": \"Specification Requirements\", \"safety_requirements\": \"[\\\"The welding machine casing must be reliably grounded, and the insulation of welding cables and electrode holder must not be damaged.\\\", \\\"Protective equipment such as welding masks, insulating gloves, flame-retardant work clothing, and safety shoes must be worn.\\\", \\\"The welding area should be kept ventilated, and combustibles nearby should be removed; if they cannot be removed, assign a dedicated watcher.\\\", \\\"It is prohibited to touch live welding components with bare hands in a damp environment.\\\", \\\"Welding is strictly prohibited on closed containers or containers that have held flammable or explosive substances and have not been cleaned and purged.\\\", \\\"Before adjusting welding current or servicing the welding machine, the power supply must be cut off.\\\"]\"}","Before work, clean the welding area and remove combustibles; if they cannot be moved, assign a dedicated watcher and prepare fire extinguishing equipment. Then check ventilation conditions and turn on local exhaust ventilation if necessary. Operators should wear intact welding masks, insulating gloves, flame-retardant work clothing, and safety shoes, and inspect the welding machine casing, welding cables, and electrode holder to confirm that the casing is reliably grounded and the insulation of cables and electrode holder is not damaged. Then select the electrode and welding current according to the process card, connect the welding cables and workpiece grounding conductor, and only after confirming that the electrode holder is well insulated and connections are secure may arc striking begin. Do not touch live components with bare hands in a damp environment, and do not weld on closed or hazardous containers that have not been cleaned and purged; before adjusting current or servicing the welding machine, the power supply must be cut off.","What inspections and safety preparations should be completed before manual metal arc welding?","\u003Chtml>\u003Chead>\u003Ctitle>Preparation Before Manual Metal Arc Welding\u003C\u002Ftitle>\u003C\u002Fhead>\u003Cbody>\u003Ch1>Preparation Before Manual Metal Arc Welding\u003C\u002Fh1>\u003Cp>Before welding, inspect the welding machine casing, welding cables, and electrode holder. The welding machine casing must be reliably grounded, and the insulation of cables and electrode holder must not be damaged.\u003C\u002Fp>\u003Col>\u003Cli>Clean the welding area and remove combustible materials nearby; if they cannot be moved, assign a dedicated watcher and prepare fire extinguishing equipment.\u003C\u002Fli>\u003Cli>Check the ventilation of the workplace and turn on local exhaust ventilation if necessary.\u003C\u002Fli>\u003Cli>Wear a welding mask, insulating gloves, flame-retardant work clothing, and safety shoes, and confirm that protective equipment is intact.\u003C\u002Fli>\u003Cli>Select the electrode and welding current according to the process card, and connect the welding cables and workpiece grounding conductor.\u003C\u002Fli>\u003Cli>Only after confirming that the electrode holder is well insulated and the connections are secure may arc striking begin.\u003C\u002Fli>\u003C\u002Fol>\u003Ch2>Specification Requirements\u003C\u002Fh2>\u003Cul>\u003Cli>It is prohibited to touch live welding components with bare hands in a damp environment.\u003C\u002Fli>\u003Cli>Welding is strictly prohibited on closed containers or containers that have held flammable or explosive substances and have not been cleaned and purged.\u003C\u002Fli>\u003Cli>Before adjusting welding current or servicing the welding machine, the power supply must be cut off.\u003C\u002Fli>\u003Cli>The welding area should be kept ventilated, and operators must not look directly at the arc.\u003C\u002Fli>\u003C\u002Ful>\u003Ch2>Fault Prevention\u003C\u002Fh2>\u003Cp>Before welding, confirm that cable connections are secure, workpiece grounding is reliable, and the welding surface is clean, and set the welding current according to the process card to reduce arc striking difficulty, arc interruption, and weld defects.\u003C\u002Fp>\u003C\u002Fbody>\u003C\u002Fhtml>","[\"Poor grounding of the welding machine, damaged cables, or working in a damp environment may cause electric shock.\", \"Not wearing a mask or looking directly at the arc may cause arc burns to the eyes and face.\", \"Welding sparks contacting nearby combustibles may cause a fire.\", \"Welding when flammable substances remain in a closed container may cause combustion or explosion.\", \"Poor ventilation may cause welding fume to accumulate in the work area and harm respiratory health.\"]","[\"Clean the welding area and remove combustibles; if they cannot be moved, assign a dedicated watcher and prepare fire extinguishing equipment.\", \"Check ventilation conditions and turn on local exhaust ventilation if necessary.\", \"Wear a welding mask, insulating gloves, flame-retardant work clothing, and safety shoes.\", \"Inspect the welding machine casing, welding cables, and electrode holder, and confirm that grounding, insulation, and connections are in good condition.\", \"Select the electrode and welding current according to the process card, and connect the welding cables and workpiece grounding conductor.\", \"After confirming that the electrode holder is well insulated and connections are secure, begin arc striking.\"]","The welding machine casing must be reliably grounded, and the insulation of welding cables and electrode holder must not be damaged; the welding area should be kept ventilated, and combustibles nearby should be removed; if they cannot be removed, assign a dedicated watcher.","[\"Before welding, check that welding cables are securely connected and workpiece grounding is reliable to avoid arc striking difficulty and arc instability.\", \"Clean the welding surface and set the welding current according to the process card to reduce arc interruption and weld defects.\", \"Inspect the insulation of the electrode holder and the condition of the welding machine casing; if damage or abnormality is found, stop using it and repair it first.\", \"Before finishing work or servicing, cut off the power supply to prevent the equipment from being live and from accidental startup.\"]","Specification Requirements","[\"The welding machine casing must be reliably grounded, and the insulation of welding cables and electrode holder must not be damaged.\", \"Protective equipment such as welding masks, insulating gloves, flame-retardant work clothing, and safety shoes must be worn.\", \"The welding area should be kept ventilated, and combustibles nearby should be removed; if they cannot be removed, assign a dedicated watcher.\", \"It is prohibited to touch live welding components with bare hands in a damp environment.\", \"Welding is strictly prohibited on closed containers or containers that have held flammable or explosive substances and have not been cleaned and purged.\", \"Before adjusting welding current or servicing the welding machine, the power supply must be cut off.\"]",{"id":684,"relate_table":654,"relate_id":685,"file_size":572,"file_name":686,"path":8,"duration":572,"cate":483,"file_format":657,"audio_rate":8,"audio_channel":522,"audio_bit_depth":522,"quality":8,"annotation":687,"cate_name":659,"answer":688,"question":689,"source_html":690,"risk_warnings":691,"operation_steps":692,"evidence_excerpt":693,"fault_prevention":694,"knowledge_category":695,"safety_requirements":696},15103,1855514852,"样例_1.json","{\"answer\": \"First, remove chips from the worktable and inside the guards, and check the emergency stop button, lubrication system, and coolant status; then, according to the process card, confirm that the tool, tool holder, and workpiece material match, and clamp the workpiece securely. After loading the tool, verify the tool length compensation value, radius compensation value, tool number, and workpiece coordinate system. Close the protective door and call up the correct program. For the first run, use single block mode and set the rapid override and feed override to low levels for a dry run. Only after confirming that the tool path has no interference, the program direction is correct, and there is no abnormal noise or vibration may formal cutting begin. When clearing chips, measuring the workpiece, or adjusting the fixture, the machine must be stopped and the spindle must be waited to stop completely.\", \"question\": \"In what order should operations be performed when loading a tool and conducting the first dry run on a CNC milling machine?\", \"source_html\": \"\u003Chtml>\u003Chead>\u003Ctitle>First Tool Loading and Dry Run Inspection for CNC Milling Machine\u003C\u002Ftitle>\u003C\u002Fhead>\u003Cbody>\u003Ch1>First Tool Loading and Dry Run Inspection for CNC Milling Machine\u003C\u002Fh1>\u003Cp>Before starting the machine, remove chips from the worktable and the inside of the guards, and check the emergency stop button, lubrication system, and coolant status.\u003C\u002Fp>\u003Col>\u003Cli>According to the process card, confirm that the tool, tool holder, and workpiece material match.\u003C\u002Fli>\u003Cli>Clamp the workpiece securely and confirm that the fixture and clamps do not interfere with tool movement.\u003C\u002Fli>\u003Cli>Load the tool and verify the tool length compensation value and radius compensation value.\u003C\u002Fli>\u003Cli>Close the protective door, call up the correct machining program, and verify the workpiece coordinate system and tool number.\u003C\u002Fli>\u003Cli>For the first run, use single block mode, set the rapid override and feed override to low levels, and perform a dry run first.\u003C\u002Fli>\u003Cli>After confirming that the tool path has no interference and the program runs in the correct direction, begin formal cutting.\u003C\u002Fli>\u003C\u002Fol>\u003Ch2>Safety Precautions\u003C\u002Fh2>\u003Cul>\u003Cli>Do not reach your hands into the machining area while the machine is running.\u003C\u002Fli>\u003Cli>Before clearing chips, measuring the workpiece, or adjusting the fixture, stop the machine and wait for the spindle to stop completely.\u003C\u002Fli>\u003Cli>If abnormal noise, vibration, or signs of tool collision are detected, immediately press the stop or emergency stop button.\u003C\u002Fli>\u003C\u002Ful>\u003Ch2>Fault Prevention\u003C\u002Fh2>\u003Cp>Tool compensation values, workpiece coordinate system, and tool number in the program must be checked item by item; the workpiece and tool should be clamped firmly; chips must not accumulate on the fixture locating surface.\u003C\u002Fp>\u003C\u002Fbody>\u003C\u002Fhtml>\", \"risk_warnings\": \"[\\\"Incorrect tool compensation values or workpiece coordinate system settings may cause the tool to collide with the workpiece, fixture, or machine.\\\", \\\"If the workpiece or tool is not clamped firmly, it may come loose under spindle rotation and cutting forces, causing flying objects and injury or machining failure.\\\", \\\"Reaching in to clear chips or measure the workpiece without stopping the machine may cause entanglement, cuts, or burns.\\\", \\\"Chips accumulating on the fixture locating surface may cause the workpiece to be clamped at an angle and abnormal machining dimensions.\\\"]\", \"operation_steps\": \"[\\\"Remove chips from the worktable and inside the guards, and check the emergency stop button, lubrication system, and coolant status.\\\", \\\"According to the process card, confirm that the tool, tool holder, and workpiece material match, and clamp the workpiece securely.\\\", \\\"Load the tool and verify the tool length compensation value, radius compensation value, tool number, and workpiece coordinate system.\\\", \\\"Close the protective door and call up the correct machining program.\\\", \\\"Use single block mode and set the rapid override and feed override to low levels for a dry run.\\\", \\\"After confirming there is no interference, the program direction is correct, and the equipment operates normally, begin formal cutting.\\\"]\", \"evidence_excerpt\": \"For the first run, use single block mode, set the rapid override and feed override to low levels, and perform a dry run first; after confirming that the tool path has no interference and the program runs in the correct direction, begin formal cutting.\", \"fault_prevention\": \"[\\\"Before running, check the tool number, tool length compensation value, radius compensation value, and workpiece coordinate system item by item.\\\", \\\"Confirm that the workpiece, fixture, and tool are clamped firmly, and remove chips from the fixture locating surface.\\\", \\\"For the first run, use single block mode and low override for a dry run to detect program path interference in advance.\\\", \\\"If abnormal noise or vibration occurs, stop the machine immediately and inspect it; do not continue cutting with a fault.\\\"]\", \"knowledge_category\": \"Equipment Operation\", \"safety_requirements\": \"[\\\"Do not reach your hands into the machining area while the machine is running.\\\", \\\"Before clearing chips, measuring the workpiece, or adjusting the fixture, stop the machine and wait for the spindle to stop completely.\\\", \\\"If abnormal noise, vibration, or signs of tool collision are detected, immediately press the stop or emergency stop button.\\\", \\\"For the first run, close the protective door and perform a dry run in single block mode and at low override.\\\"]\"}","First, remove chips from the worktable and inside the guards, and check the emergency stop button, lubrication system, and coolant status; then, according to the process card, confirm that the tool, tool holder, and workpiece material match, and clamp the workpiece securely. After loading the tool, verify the tool length compensation value, radius compensation value, tool number, and workpiece coordinate system. Close the protective door and call up the correct program. For the first run, use single block mode and set the rapid override and feed override to low levels for a dry run. Only after confirming that the tool path has no interference, the program direction is correct, and there is no abnormal noise or vibration may formal cutting begin. When clearing chips, measuring the workpiece, or adjusting the fixture, the machine must be stopped and the spindle must be waited to stop completely.","In what order should operations be performed when loading a tool and conducting the first dry run on a CNC milling machine?","\u003Chtml>\u003Chead>\u003Ctitle>First Tool Loading and Dry Run Inspection for CNC Milling Machine\u003C\u002Ftitle>\u003C\u002Fhead>\u003Cbody>\u003Ch1>First Tool Loading and Dry Run Inspection for CNC Milling Machine\u003C\u002Fh1>\u003Cp>Before starting the machine, remove chips from the worktable and the inside of the guards, and check the emergency stop button, lubrication system, and coolant status.\u003C\u002Fp>\u003Col>\u003Cli>According to the process card, confirm that the tool, tool holder, and workpiece material match.\u003C\u002Fli>\u003Cli>Clamp the workpiece securely and confirm that the fixture and clamps do not interfere with tool movement.\u003C\u002Fli>\u003Cli>Load the tool and verify the tool length compensation value and radius compensation value.\u003C\u002Fli>\u003Cli>Close the protective door, call up the correct machining program, and verify the workpiece coordinate system and tool number.\u003C\u002Fli>\u003Cli>For the first run, use single block mode, set the rapid override and feed override to low levels, and perform a dry run first.\u003C\u002Fli>\u003Cli>After confirming that the tool path has no interference and the program runs in the correct direction, begin formal cutting.\u003C\u002Fli>\u003C\u002Fol>\u003Ch2>Safety Precautions\u003C\u002Fh2>\u003Cul>\u003Cli>Do not reach your hands into the machining area while the machine is running.\u003C\u002Fli>\u003Cli>Before clearing chips, measuring the workpiece, or adjusting the fixture, stop the machine and wait for the spindle to stop completely.\u003C\u002Fli>\u003Cli>If abnormal noise, vibration, or signs of tool collision are detected, immediately press the stop or emergency stop button.\u003C\u002Fli>\u003C\u002Ful>\u003Ch2>Fault Prevention\u003C\u002Fh2>\u003Cp>Tool compensation values, workpiece coordinate system, and tool number in the program must be checked item by item; the workpiece and tool should be clamped firmly; chips must not accumulate on the fixture locating surface.\u003C\u002Fp>\u003C\u002Fbody>\u003C\u002Fhtml>","[\"Incorrect tool compensation values or workpiece coordinate system settings may cause the tool to collide with the workpiece, fixture, or machine.\", \"If the workpiece or tool is not clamped firmly, it may come loose under spindle rotation and cutting forces, causing flying objects and injury or machining failure.\", \"Reaching in to clear chips or measure the workpiece without stopping the machine may cause entanglement, cuts, or burns.\", \"Chips accumulating on the fixture locating surface may cause the workpiece to be clamped at an angle and abnormal machining dimensions.\"]","[\"Remove chips from the worktable and inside the guards, and check the emergency stop button, lubrication system, and coolant status.\", \"According to the process card, confirm that the tool, tool holder, and workpiece material match, and clamp the workpiece securely.\", \"Load the tool and verify the tool length compensation value, radius compensation value, tool number, and workpiece coordinate system.\", \"Close the protective door and call up the correct machining program.\", \"Use single block mode and set the rapid override and feed override to low levels for a dry run.\", \"After confirming there is no interference, the program direction is correct, and the equipment operates normally, begin formal cutting.\"]","For the first run, use single block mode, set the rapid override and feed override to low levels, and perform a dry run first; after confirming that the tool path has no interference and the program runs in the correct direction, begin formal cutting.","[\"Before running, check the tool number, tool length compensation value, radius compensation value, and workpiece coordinate system item by item.\", \"Confirm that the workpiece, fixture, and tool are clamped firmly, and remove chips from the fixture locating surface.\", \"For the first run, use single block mode and low override for a dry run to detect program path interference in advance.\", \"If abnormal noise or vibration occurs, stop the machine immediately and inspect it; do not continue cutting with a fault.\"]","Equipment Operation","[\"Do not reach your hands into the machining area while the machine is running.\", \"Before clearing chips, measuring the workpiece, or adjusting the fixture, stop the machine and wait for the spindle to stop completely.\", \"If abnormal noise, vibration, or signs of tool collision are detected, immediately press the stop or emergency stop button.\", \"For the first run, close the protective door and perform a dry run in single block mode and at low override.\"]","{\"answer\":\"First, observe the pressure gauge to confirm that the supply air pressure is within the range specified in the equipment manual and does not exceed the rated pressure. Before servicing, shut off the air source and safely release residual pressure; then check the filter for accumulated water and clogged filter element, and drain, clean, or replace the filter element according to maintenance requirements. With pressure released, check the air tubes and fittings for leaks; if pipeline damage or fitting seal failure is found, repair or replace it promptly. Next, check the operating status of the flow control valve and solenoid valve, and adjust gradually according to the equipment instructions; do not forcibly turn the valve components. After restoring air supply, first perform a no-load action test to confirm that clamping and releasing are smooth and there is no obvious air leakage, and then put it into operation with a workpiece. Daily routine should include regular inspection of supply air pressure, filters, pipeline fittings, and flow control valves, and keeping the air source clean and dry.\",\"question\":\"How can slow operation of a pneumatic clamping device be prevented and troubleshot?\",\"source_html\":\"\u003Chtml>\u003Chead>\u003Ctitle>Prevention and Inspection of Slow Action of Pneumatic Clamping Device\u003C\\\u002Ftitle>\u003C\\\u002Fhead>\u003Cbody>\u003Ch1>Prevention and Inspection of Slow Action of Pneumatic Clamping Device\u003C\\\u002Fh1>\u003Cp>Slow action of a pneumatic clamping device is often related to insufficient supply air pressure, clogged filter, air leakage in pipelines, or improper flow adjustment.\u003C\\\u002Fp>\u003Col>\u003Cli>Observe the pressure gauge to confirm that the supply air pressure is within the range specified in the equipment manual and does not exceed the rated pressure.\u003C\\\u002Fli>\u003Cli>Before servicing pipelines, filters, or valves, shut off the air source and safely release residual pressure.\u003C\\\u002Fli>\u003Cli>Check the filter for accumulated water and clogged filter element, and drain, clean, or replace the filter element according to maintenance requirements.\u003C\\\u002Fli>\u003Cli>With pressure released, check the air tubes and fittings for leaks; if pipeline damage or fitting seal failure is found, replace or repair it promptly.\u003C\\\u002Fli>\u003Cli>Check the operating status of the flow control valve and solenoid valve, and adjust gradually according to the equipment instructions; do not forcibly turn the valve components.\u003C\\\u002Fli>\u003Cli>After restoring air supply, first perform a no-load action test to confirm that clamping and releasing are smooth and there is no obvious air leakage, and then put it into operation with a workpiece.\u003C\\\u002Fli>\u003C\\\u002Fol>\u003Ch2>Safety Precautions\u003C\\\u002Fh2>\u003Cul>\u003Cli>Before servicing, the air source must be cut off and residual pressure released; attach a lockout\\\u002Ftag if necessary.\u003C\\\u002Fli>\u003Cli>While the cylinder is moving, do not place hands in the clamping or shearing areas of the fixture, workpiece, or cylinder.\u003C\\\u002Fli>\u003Cli>If abnormal pressure, pipeline rupture, or loss of fixture control is found, stop the equipment immediately and report to the instructor.\u003C\\\u002Fli>\u003C\\\u002Ful>\u003Ch2>Preventive Measures\u003C\\\u002Fh2>\u003Cp>Regularly inspect supply air pressure, filters, pipeline fittings, and flow control valves, keep the air source clean and dry, and avoid continuing work before air leakage or abnormal pressure has been eliminated.\u003C\\\u002Fp>\u003C\\\u002Fbody>\u003C\\\u002Fhtml>\",\"risk_warnings\":\"[\\\"Disassembling pipelines or valve components without releasing residual compressed air may cause fittings to pop out, air impact, or sudden movement of parts.\\\", \\\"Slow clamping action or insufficient pressure may cause the workpiece to be held insecurely and shift during machining or handling.\\\", \\\"Putting hands into the fixture movement area may cause crushing or shearing injuries due to sudden cylinder action.\\\", \\\"Continuing to operate with a clogged filter, pipeline leakage, or abnormal pressure may cause clamping failure and loss of equipment motion control.\\\"]\",\"operation_steps\":\"[\\\"Observe the pressure gauge to confirm that the supply air pressure is within the equipment-specified range and does not exceed the rated pressure.\\\", \\\"After shutting off the air source and releasing residual pressure, check the filter for accumulated water and clogged filter element.\\\", \\\"Drain, clean, or replace the filter element, and with pressure released check the air tubes and fittings for leaks.\\\", \\\"Repair or replace damaged pipelines and failed seals.\\\", \\\"Check the flow control valve and solenoid valve, and adjust gradually according to the equipment instructions.\\\", \\\"After restoring air supply, perform a no-load action test to confirm that clamping and releasing are smooth and there is no obvious air leakage, and then put it into operation with a workpiece.\\\"]\",\"evidence_excerpt\":\"Slow action of a pneumatic clamping device is often related to insufficient supply air pressure, clogged filter, air leakage in pipelines, or improper flow adjustment. Before servicing pipelines, filters, or valves, shut off the air source and safely release residual pressure.\",\"fault_prevention\":\"[\\\"Regularly inspect supply air pressure, filters, pipeline fittings, and flow control valves, and handle abnormalities promptly.\\\", \\\"Drain, clean, or replace the filter element according to maintenance requirements to keep the air source clean and dry.\\\", \\\"With pressure released, check the sealing of pipelines and fittings, and repair any damage or leakage promptly.\\\", \\\"After restoring air supply, perform a no-load test first, and only after confirming that clamping and releasing actions are smooth should work with a workpiece be carried out.\\\", \\\"Do not continue using the clamping device before air leakage or abnormal pressure has been eliminated.\\\"]\",\"knowledge_category\":\"Fault Prevention\",\"safety_requirements\":\"[\\\"Before servicing pipelines, filters, or valves, the air source must be shut off and residual pressure safely released; attach a lockout\\\u002Ftag if necessary.\\\", \\\"Do not exceed the rated supply air pressure specified by the equipment.\\\", \\\"While the cylinder is moving, do not place hands in the clamping or shearing areas of the fixture, workpiece, or cylinder.\\\", \\\"If abnormal pressure, pipeline rupture, or loss of fixture control is found, stop the equipment immediately and report to the instructor.\\\", \\\"When adjusting valve components, follow the equipment instructions and proceed gradually; do not forcibly turn them.\\\"]\"}","MOBIUSI INC","https:\u002F\u002Fstatic.mobiusi.com\u002Fmobiwusi\u002F20250829\u002F7bf4ac62b4533e2b809998a6f1c5491e.png?Expires=1792463130&OSSAccessKeyId=LTAI5tH8MQqhgeiAtrzCHrxM&Signature=v6Tr8jBrdm4s5wU1SnnyGsYg%2Bhw%3D&x-oss-process=image%2Fresize%2Cm_fill%2Cw_35%2Ch_35",[701,707],{"type":702,"title":703,"count_data":704},"bar","Length distribution",[705],{"name":706,"value":483},"1k lower",{"type":708,"title":709,"count_data":710},"pie","Language distribution",[711],{"name":712,"value":483},"English"]