What are the safety inspection tasks of the hook?
Hook is an important part of the accessories. When using it, it is necessary to ensure the safety of the accessories, so regular maintenance and inspection are required. This chapter mainly introduces the safety inspection of the hook.
Safety inspection of hooks:
1. Load test of hooks. Load test should be carried out for newly put into use and hooks that have been used for a period of time. 1.5 times the rated load is used as the test load, and the load suspension time is no less than 10 minutes. There should be no deformation of the part after unloading.
For hooks that have been used for a period of time, load tests can also be performed to determine the load used. After the hook is used for a period of time, the surface of the hook is often hardened due to the action of the wire rope. To prevent this surface hardening, annealing can be done every six months to a year, but the temperature must be controlled according to the material, otherwise the hook metal grains will become coarse and affect the service life. For forged hooks made of No. 20 steel, the annealing temperature can be controlled at 500℃~600℃, and then slowly cooled after insulation, so that the steel structure will not change.
2. Safety inspection of hooks: The hooks should be inspected at least once a year, and the frequently used hooks should be inspected at least once a quarter. Before inspection, use kerosene to clean the hook body, use a 20x magnifying glass to check the dangerous section, and do not have cracks, plastic deformation, loose rivets, etc. For hooks that pass the inspection, the processing surfaces of the hooks should be coated with anti-rust oil, and the non-processed surfaces should be coated with anti-rust paint, and marks that are not easy to wear off should be made in the low-stress area.
3. Safety inspection of hooks: The inspection cycle should be determined based on the heavy work and the harsh environment, but it must not be less than once a month. Mainly check whether the hook has cracks, deformation, and whether the hook nuts and anti-loosening devices are loose, and check the wear of the bushing, mandrels, small holes, ear holes and their fasteners. The hook assembly part must be inspected at least once a quarter and cleaned and lubricated.
By safety inspection of the hook, ensure that the performance of the hook can meet the work needs and prevent accidents during operation.
Hook is an important part of the accessories. When using it, it is necessary to ensure the safety of the accessories, so regular maintenance and inspection are required. This chapter mainly introduces the safety inspection of the hook.
Safety inspection of hooks:
1. Load test of hooks. Load test should be carried out for newly put into use and hooks that have been used for a period of time. 1.5 times the rated load is used as the test load, and the load suspension time is no less than 10 minutes. There should be no deformation of the part after unloading.
For hooks that have been used for a period of time, load tests can also be performed to determine the load used. After the hook is used for a period of time, the surface of the hook is often hardened due to the action of the wire rope. To prevent this surface hardening, annealing can be done every six months to a year, but the temperature must be controlled according to the material, otherwise the hook metal grains will become coarse and affect the service life. For forged hooks made of No. 20 steel, the annealing temperature can be controlled at 500℃~600℃, and then slowly cooled after insulation, so that the steel structure will not change.
2. Safety inspection of hooks: The hooks should be inspected at least once a year, and the frequently used hooks should be inspected at least once a quarter. Before inspection, use kerosene to clean the hook body, use a 20x magnifying glass to check the dangerous section, and do not have cracks, plastic deformation, loose rivets, etc. For hooks that pass the inspection, the processing surfaces of the hooks should be coated with anti-rust oil, and the non-processed surfaces should be coated with anti-rust paint, and marks that are not easy to wear off should be made in the low-stress area.
3. Safety inspection of hooks: The inspection cycle should be determined based on the heavy work and the harsh environment, but it must not be less than once a month. Mainly check whether the hook has cracks, deformation, and whether the hook nuts and anti-loosening devices are loose, and check the wear of the bushing, mandrels, small holes, ear holes and their fasteners. The hook assembly part must be inspected at least once a quarter and cleaned and lubricated.
By safety inspection of the hook, ensure that the performance of the hook can meet the work needs and prevent accidents during operation.
Hook is an important part of the accessories. When using it, it is necessary to ensure the safety of the accessories, so regular maintenance and inspection are required. This chapter mainly introduces the safety inspection of the hook.
Safety inspection of hooks:
1. Load test of hooks. Load test should be carried out for newly put into use and hooks that have been used for a period of time. 1.5 times the rated load is used as the test load, and the load suspension time is no less than 10 minutes. There should be no deformation of the part after unloading.
For hooks that have been used for a period of time, load tests can also be performed to determine the load used. After the hook is used for a period of time, the surface of the hook is often hardened due to the action of the wire rope. To prevent this surface hardening, annealing can be done every six months to a year, but the temperature must be controlled according to the material, otherwise the hook metal grains will become coarse and affect the service life. For forged hooks made of No. 20 steel, the annealing temperature can be controlled at 500℃~600℃, and then slowly cooled after insulation, so that the steel structure will not change.
2. Safety inspection of hooks: The hooks should be inspected at least once a year, and the frequently used hooks should be inspected at least once a quarter. Before inspection, use kerosene to clean the hook body, use a 20x magnifying glass to check the dangerous section, and do not have cracks, plastic deformation, loose rivets, etc. For hooks that pass the inspection, the processing surfaces of the hooks should be coated with anti-rust oil, and the non-processed surfaces should be coated with anti-rust paint, and marks that are not easy to wear off should be made in the low-stress area.
3. Safety inspection of hooks: The inspection cycle should be determined based on the heavy work and the harsh environment, but it must not be less than once a month. Mainly check whether the hook has cracks, deformation, and whether the hook nuts and anti-loosening devices are loose, and check the wear of the bushing, mandrels, small holes, ear holes and their fasteners. The hook assembly part must be inspected at least once a quarter and cleaned and lubricated.
By safety inspection of the hook, ensure that the performance of the hook can meet the work needs and prevent accidents during operation.
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