We are manufacturer of threaded steel rods and bars include Grade 8.8, 10.9, 12.9 threaded rods and astm a193 grade b7, b16 etc. Our advantages and more services of threaded steel rods includes:
1) Wide range of diameters from 1/2" - 4"
2) Customized Length from 100mm to 12000mm
3) Good threads at 60 degree
4) Good straightness: 1mm/m max
5) Even hardness on whole bars
5) Proper mechanical properties
7) Full sets of testing equipment: Surface, Dimenstion. Mechanical properties testing
8) Fast delivery time
Threaded Steel Bar,Threaded Steel Rod, Steel Threaded Rod,Steel Threaded Bar,1" threaded rod SHANDONG LE REN SPECIAL STEEL CO., LTD. , https://www.sdhighstrengthsteelbolts.com
2. Before the equipment is repaired, it is necessary to cut off the power supply and hang up a warning sign “Someone works and no closing is allowedâ€.
3. After the large shaft and the drum of the flywheel are removed, they should be placed in a safe and reliable place, and they should be fastened firmly and securely to prevent injury to personnel when they slide or fall down.
4. When disassembling the flywheel, belt, fastening nut, etc., it is forbidden to use a hammer to beat. When swinging the hammer, attention should be paid to maintaining a safe distance from the surrounding personnel. In swinging hammers in narrow places, attention must also be paid to preventing collisions with surrounding equipment and buildings. It is strictly forbidden to wear gloves. When two or more people work together, they must pay attention to coordination and cooperation.
5. When drilling the drill hole, it is absolutely forbidden to use gloves to prevent the damage. When drilling small workpieces, it must be fixed with a clamp, and it is not allowed to use the workpiece to drill holes.
6. When using a running light, the voltage must not exceed 36 volts. Operate in an environment where the conductor is particularly moist or the surrounding metal is good. The voltage must not exceed 12 volts. The length of the entrance line of the lights must not exceed 2 meters. Running lamp transformers should not be placed in containers with good metal conductors. The lighting voltage used on the clamp table must not exceed 36V.
7. When using lifting tools, check whether the equipment is in good condition. Do not allow overloaded lifting. Do not allow towing and slanting. Do not stand under hanging objects. The structure of the hanging hoist must be solid and reliable. The hoist hooks, pins and chain brakes must be kept intact during operation. The lifting objects must be strapped securely and the lifting slings should be within the allowable load range.
8. When using the jack, the following must be added to the mat. The stress point should be selected properly. When the head is in contact with the metal smooth surface of the equipment, it should be covered with hardwood to prevent slippage. It should be stable and stable to avoid accidents. When lifting or hoisting large parts, strong ropes or steel ropes must be used, knots must be firmly secured, wire clamps must be clamped, operations must be conducted in a unified manner, greeting each other, and the work must not cross the top of the head.
9. Carefully inspect the wire housing before using the drill, must have a grounding wire or neutral protection. When using an electric drill, the operator should wear rubber gloves and should stand on the insulator without exerting excessive force to prevent overload. When using the drill, it is found that the vibration, heat, leakage, etc. of the drill should be turned off immediately. Take and discharge drill can not carry the electric drill wire.
10. Before starting the grinding wheel cutting machine, check whether the protective cover is firm, whether the grinding wheel is stable and whether the grinding wheel has a gap. Both ends of the long cutting should be supported by the bracket to avoid jumping when cutting. In operation, the contact between the grinding wheel and the workpiece is slow. After the grinding wheel is in normal contact with the workpiece, the workpiece is evenly and forcefully cut. The operator should deviate from the direction of rotation of the grinding wheel in case the wheel breaks and hurts.
11. When disassembling the motor end caps, pulleys, shafts and bearings, use special tools such as copper rods, wooden hammers, and pull hooks, and do not use direct hammers, flat shovels, etc.
12. Equipment with amplifiers should be commissioned and tested. Before the trial run, safety measures should be taken to carefully check whether the mechanical limiters, zero pressure, zero magnetic, overvoltage, and overcurrent relays are safe and reliable.
13. During the test run, it should be observed whether the motor steering, sound, measurement, etc. are normal. The staff should avoid the direction of rotation of the coupling. After the work is over, check the cleanup site, disconnect the power source, and remove the fire source before leaving.
14. When using electric and gas welding equipment, strictly observe the “Electrical Welder Safety Operation Regulationsâ€.
15. When working at heights (more than 2 meters), strict compliance with the “Operational Safety Practices at Heights†shall be strictly observed.
16. Do not use gasoline to clean parts.
17. Before the maintenance is completed, the original guard fence and protective cover must be installed to clean up the site. After getting contact confirmation from the staff, the equipment can be started and the safety operation regulations of the equipment can be strictly observed.
Machine Repair and Machine Electrical Maintenance Worker Safety Operation Procedures
1, the use of tools must be complete, intact and reliable, it is prohibited to use cracks, burrs, loose handles and other tools that do not meet the safety requirements.