Summary of safety operation procedures for iron and steel works

　　Safety operation procedures for assemblers

　　1. before work, check whether the tools and their appliances are complete. Work can only be carried out after inspection.

　　2. the assembly must be carried out according to the assembly process flow, and the parts before assembly shall be carefully counted and rechecked.

　　3. reasonably select assembly tools and equipment.

　　4. pay attention to safety when grinding the sealing surface, tighten the sleeves, press the large workpiece tightly before operation, and cut off the power supply after grinding.

　　5. when large products are assembled and operated with fork lifts, cranes or similar equipment and lifting hooks, the personnel shall be trained or specially assigned to lift them. The lifting wire ropes and lifting hooks used shall have sufficient strength to meet the lifting load requirements, and shall be strictly limited within the safety regulations. The workpiece must be clamped firmly.

　　6. the tools and equipment used shall be maintained. The incomplete tools, especially the electric tools, shall be safe. The damaged tools shall be repaired in time.

　　7. the assembled products shall be stacked neatly and enter the pressure test area.

　　8. after assembly, clean the surrounding environment and be responsible for safe production and civilized production.

　　Safety operation procedures for grinding machine

　　1. before operation, check whether the grinding wheel operates normally and whether the protective device is firm. It can be used only after the grinding wheel operates stably;

　　2. when grinding the workpiece, the mind should be focused and the workpiece should be pinched tightly. People are not allowed to aim at the grinding wheel. They should stand on the side of the grinding wheel and do not impact the grinding wheel with force;

　　3. it is forbidden to use the side of thin-wall grinding wheel;

　　4. two persons are not allowed to use one grinding wheel at the same time;

　　5. it is forbidden to grind copper, lead, wood, plastic and other tough objects on the grinding wheel;

　　6. when adjusting and replacing the grinding wheel, paper pads shall be used on both sides of the grinding wheel. The clamping screws of the grinding wheel shall be tightened evenly, and the idle test shall be carried out. The baffle and workbench of the grinding wheel machine shall also be adjusted and fastened to keep a certain distance from the grinding wheel.

　　Safety operation procedures for milling workers

　　1. before work, the cuffs must be tied. Gloves and scarves are not allowed to be worn for operation. Protective glasses should be worn during intermittent and high-speed cutting.

　　2. before start-up, check the oil hole, add oil for lubrication, and check the machine tool in detail. The machine tool can only be started after running empty for one minute.

　　3. during work, the workpiece shall be pressed tightly, the cutter shall be fixed firmly, and the workpiece beyond the worktable such as milling long axis shall be supported by a support frame.

　　4. the conversion of tools, workpieces, fixtures, measurement, speed change, etc. must be carried out after the vehicle stops stably. It is forbidden to open any protective device and touch the rotating tool by hand during milling.

　　5. the travel stop iron on the workbench must be firm, and the limit stop iron must not be removed.

　　6. the milling shall be fed gradually, and the feed amount and cutting depth shall not be changed sharply.

　　7. at the end of the work, the machine tool shall be cleaned and replaced.

　　Safety operation procedures for planing (cutting) workers

　　1. the cuffs must be tied before work, and gloves are not allowed to be worn for operation.

　　2. before start-up, the oil eye shall be inspected, the lubricating oil shall be added, and the machine tool shall be checked in detail. The work can be started only after the machine runs empty for one minute.

　　3. during operation, the workpiece must be firmly pressed with a pressing plate, and the sliding screw is prohibited.

　　4. it is not allowed to stack tools, measuring tools, knives and other sundries on the worktable during work. It is not allowed to stack any objects within the stroke range of the carriage. It is not allowed to stand in front of the cow head to prevent the workpiece from rushing down and hurting people.

　　5. the installation and replacement of tools, workpieces, fixtures, measurement and speed change can only be carried out after the planer has completely stopped.

　　6. during the operation of the planer, it is not allowed to check the surface of the workpiece by hand. During the operation of the planer, the face shall not be close to the cutter. The head of the cattle planer operator shall be on the side and away from the workpiece when observing the workpiece. When the ram is running, it is strictly prohibited to sit on the workbench and cross the bed.

　　7. after the work, the machine tool must be wiped and cleaned, and the shift handover work must be done well.

　　Safety operation procedures for fitter

　　1. before work, check whether the tools and machine tools are complete. After inspection, the work can be carried out.

　　2. when using a hand saw, be careful that the saw blade is broken. When using a hammer, check it at any time to prevent it from flying out. When using a chisel, pay attention to safety. When using a file, do not touch the workpiece by hand.

　　3. quenching materials and steel shall not be knocked by hammer to prevent people from being injured by snapping. The iron foam that has been bruised, chipped or chiseled shall not be blown by mouth to avoid flying into the eyes. When using a bench drill, it is not allowed to tighten the tie head by hand, wear gloves, drill small workpieces, or hold the workpieces by hand to drill holes.

　　4. when assembling and disassembling any workpiece, large parts shall be hoisted with lifting equipment. During loading, unloading, adjustment and commissioning, attention shall be paid to cooperation to prevent accidents.

　　5. the voltage of lighting fixtures shall not exceed 36 v.

　　6. the site must be inspected at the end of the work, and the workpiece or tools shall not be left inside the machine to avoid accidents.

　　Safety operation regulations for lathe workers

　　1. before work, workers must wear labor protection articles, tighten their cuffs, and put their hair braids in their hats. They are not allowed to wear gloves during work, and do a good job in shift handover.

　　2. the lathe operator must be familiar with the structure, characteristics, performance and operation method of the lathe and be able to eliminate general faults before working independently.

　　3. before work, all parts of the lathe must be checked comprehensively, oil shall be added according to the oil hole, and the protective cover, protective device and tools shall be checked. If any problem is found, it shall be reported in time to take measures. Forced operation is not allowed.

　　4. before cutting, the tool shall be clamped. After the workpiece is clamped properly, the key shall be removed immediately. It is necessary to run the vehicle empty for two minutes, and the operation shall be carried out after it is normal. If the workpiece exceeds the machine body or the head of the bed, a fence or obvious sign shall be set.

　　5. if brittle metal is processed, protective glasses must be worn, and protective plates shall be added during high-speed cutting.

　　6. when measuring the workpiece, loading and unloading the tool, changing the workpiece, changing the speed and wiping the machine tool, the machine shall be stopped for operation.

　　7. always keep the lathe and its surroundings clean and tidy, and there is no square thing on the lathe.

　　8. there shall be no lubricating oil around the machine tool and in the passage. The iron filings must be removed with a brush., Do not move your hands or blow with your mouth.

　　9. when the machine tool is running, the operator is not allowed to leave the work position, and the power supply should be turned off immediately in case of power failure.

　　10. always pay attention to whether the machine operates normally, and the temperature of electrical equipment shall not exceed 60 C。

　　Safety operation procedures for electric welders

　　1. wear work clothes, masks, gloves and foot covers according to the welder's labor protection before work.

　　2. check whether all parts of the welding equipment are in good condition, and there must be good insulation and reliable grounding or neutral connection devices.

　　3. the flexible wire of the welding machine must have sufficient conductor section and good insulation. The wire should not be too long (generally not more than 3m). The power terminal must have a reliable protective cover. To prevent short circuit and electric shock, do not use poorly insulated welding handles.

　　4. naked cables shall not be used for grounding. The connection shall be firm and the length shall be short. It is strictly prohibited to connect to combustible gas or grounding pipes, containers and equipment.

　　5. pay attention to the air inlet of the welding machine to prevent temperature rise, but do not put it in the open air, let alone shower and expose it to the sun, so as to prevent the coil from being damp and damaging the ring insulation.

　　6. during welding or surfacing, the speed shall be uniform, the height shall be basically the same, and the process requirements shall be strictly followed.

　　7. after the work, the site and equipment shall be maintained, and the shift handover work shall be well done.

　　Safety operation procedures for Drillers

　　1. before start-up, check whether the machine tool is normal, and whether the electrical equipment, safety protection devices and coolant baffle are complete and in good condition.

　　2. the sleeves shall be fastened during operation. Gloves and scarves are strictly prohibited. The safety block and impact block of the drilling machine shall not be removed, and shall be adjusted and used according to the processing conditions.

　　3. the drill bit shall be loaded and unloaded, and the drill clamp shall be in accordance with the specified tools. Random tapping is not allowed. When drilling, tapping and reaming, the workpiece must be clamped firmly with special tools. It is not allowed to hold the workpiece by hand. When processing heavy and deformed workpieces, the workpiece must be firmly cushioned before processing.

　　4. it is forbidden to add oil by hand when the drill bit is running. When the eye hole is drilled through, a cushion block shall be placed under the workpiece to avoid damaging the workbench.

　　5. when the drill bit is lifted and lowered, loosen the fixing screw and tighten it slightly during operation. When loading and unloading workpieces, changing external heads, drilling clamps, reversing speed and changing speed, the machine must be stopped.

　　6. when the rocker arm drill starts to work, it shall be idled for trial use to lubricate evenly, and the oil window shall be observed to see if the oil supply is normal. It can be processed only after confirmation.

　　7. after the work is completed, the spindle box must be close to the column end, and the cross arm shall be lowered to the side of the main column near the lower head.

　　8. according to the properties of working materials and process requirements, select a reasonable speed and feed rate within the specified range of equipment performance.

　　Safety operation procedures for sawing machine workers

　　1. make all preparations before sawing. Install the vice so that the center of the sawing material is located in the middle of the sawing stroke. Place the sawing material on the vice horizontally and at right angles to the saw blade. If you want to saw the material at an oblique angle, adjust the vice to the required angle before installing the sawing material. The size of the sawing material shall not be greater than the maximum size of the machine tool.

　　2. the saw blade must be tightened, and the sawtooth should be sharp. Before sawing, a short-term test run must be conducted (3-5 minutes). To blow out the air in the liquid cylinder and the oil grooves on the hydraulic rotating device. Check whether the saw tooth is faulty and whether the lubricating oil circuit is normal.

　　3. during operation, turn the rotary valve to the "down" position to make the saw blade contact with the material, and then turn the handle to the slow-moving position. After the initial sawing is good, the normal operation can be started.

　　4. during the operation of the sawing machine, it is not allowed to change speed midway. The sawing material shall be placed and clamped firmly. The required feed amount shall be determined according to the hardness of the material and the quality of the saw blade.

　　5. for the normal operation of the sawing machine, mineral oil without acid and other mixtures must be added to the hydraulic transmission and lubrication device. The cold liquid must not be dirty or mixed with small metal chips, and must be filtered or replaced periodically.

　　6. cut off the power supply after work, and put all control handles back to the empty position. In case of abnormal temperature rise and noise of the machine tool, stop the machine and check with the equipment maintenance worker.