Joking about the types and technical requirements of hooks
Hooks are divided into single hooks and double hooks according to their shapes, and they are divided into forged hooks and laminated hooks according to their manufacturing methods. The single hook is simple to manufacture and easy to use, but its stress resistance is not good. It is mostly used in workplaces with a lifting capacity of less than 80 tons. When the lifting capacity is large, double hooks with symmetrical stress are often used. The laminated hook is riveted by several cut and formed steel plates. When cracks occur in individual plates, the entire hook will not be damaged. It is safer, but has a larger deadweight. It is mostly used on cranes with large lifting capacity or lifting ladles of molten steel. The hook is often impacted during the operation and needs to be made of high-quality carbon steel with good toughness.
Hooks are widely classified, generally including: S hooks, nose hooks, American hooks, large steel hooks, gourd hooks, claw hooks, eye-type sliding hooks, steel pipe hooks, rotating hooks, claw safety hooks, eye-type safety hooks, etc., with or without insurance cards. They are unique, novel, high-quality, and safe, and are suitable for factories, mines, petroleum, chemicals, ship terminals, etc. To ensure safety, quality and safety factor, the breakage can reach 4 times, and the lifting capacity ranges from 5 tons to 150 tons.
The purchase of hooks must have technical documents such as certificates from the manufacturer before use. When purchasing hooks from important departments such as railways, ports, etc., strict inspection (flaw detection) is required before leaving the factory.
The hook must not have defects that affect safe performance; hook defects must not be repaired by welding; the surface of the hook should be smooth and free of cracks, folds, sharp angles, burrs, peeling, overburning and other defects.
The hook material can be forged from 20 high-quality carbon steel or special hook materials such as DG20Mn and DG34CrMo. The use of cast hooks is strictly prohibited. The material of the plate hook is generally A3, C3 ordinary carbon steel or 16Mn low alloy steel.
The longitudinal axis of the hook piece must be located in the rolling direction of the steel plate, and the hook pieces are not allowed to be spliced.
The hook piece of the plate hook should be riveted with countersunk head rivets, and rivets should not be used to connect the high-stress bending parts where the plate hook contacts the lifting point of the hoisted object.
Fully enclosed welding is not allowed between plate hook laminations, only intermittent welding is allowed.
Hooks are divided into single hooks and double hooks according to their shapes, and they are divided into forged hooks and laminated hooks according to their manufacturing methods. The single hook is simple to manufacture and easy to use, but its stress resistance is not good. It is mostly used in workplaces with a lifting capacity of less than 80 tons. When the lifting capacity is large, double hooks with symmetrical stress are often used. The laminated hook is riveted by several cut and formed steel plates. When cracks occur in individual plates, the entire hook will not be damaged. It is safer, but has a larger deadweight. It is mostly used on cranes with large lifting capacity or lifting ladles of molten steel. The hook is often impacted during the operation and needs to be made of high-quality carbon steel with good toughness.
Hooks are widely classified, generally including: S hooks, nose hooks, American hooks, large steel hooks, gourd hooks, claw hooks, eye-type sliding hooks, steel pipe hooks, rotating hooks, claw safety hooks, eye-type safety hooks, etc., with or without insurance cards. They are unique, novel, high-quality, and safe, and are suitable for factories, mines, petroleum, chemicals, ship terminals, etc. To ensure safety, quality and safety factor, the breakage can reach 4 times, and the lifting capacity ranges from 5 tons to 150 tons.
The purchase of hooks must have technical documents such as certificates from the manufacturer before use. When purchasing hooks from important departments such as railways, ports, etc., strict inspection (flaw detection) is required before leaving the factory.
The hook must not have defects that affect safe performance; hook defects must not be repaired by welding; the surface of the hook should be smooth and free of cracks, folds, sharp angles, burrs, peeling, overburning and other defects.
The hook material can be forged from 20 high-quality carbon steel or special hook materials such as DG20Mn and DG34CrMo. The use of cast hooks is strictly prohibited. The material of the plate hook is generally A3, C3 ordinary carbon steel or 16Mn low alloy steel.
The longitudinal axis of the hook piece must be located in the rolling direction of the steel plate, and the hook pieces are not allowed to be spliced.
The hook piece of the plate hook should be riveted with countersunk head rivets, and rivets should not be used to connect the high-stress bending parts where the plate hook contacts the lifting point of the hoisted object.
Fully enclosed welding is not allowed between plate hook laminations, only intermittent welding is allowed.
Hooks are divided into single hooks and double hooks according to their shapes, and they are divided into forged hooks and laminated hooks according to their manufacturing methods. The single hook is simple to manufacture and easy to use, but its stress resistance is not good. It is mostly used in workplaces with a lifting capacity of less than 80 tons. When the lifting capacity is large, double hooks with symmetrical stress are often used. The laminated hook is riveted by several cut and formed steel plates. When cracks occur in individual plates, the entire hook will not be damaged. It is safer, but has a larger deadweight. It is mostly used on cranes with large lifting capacity or lifting ladles of molten steel. The hook is often impacted during the operation and needs to be made of high-quality carbon steel with good toughness.
Hooks are widely classified, generally including: S hooks, nose hooks, American hooks, large steel hooks, gourd hooks, claw hooks, eye-type sliding hooks, steel pipe hooks, rotating hooks, claw safety hooks, eye-type safety hooks, etc., with or without insurance cards. They are unique, novel, high-quality, and safe, and are suitable for factories, mines, petroleum, chemicals, ship terminals, etc. To ensure safety, quality and safety factor, the breakage can reach 4 times, and the lifting capacity ranges from 5 tons to 150 tons.
The purchase of hooks must have technical documents such as certificates from the manufacturer before use. When purchasing hooks from important departments such as railways, ports, etc., strict inspection (flaw detection) is required before leaving the factory.
The hook must not have defects that affect safe performance; hook defects must not be repaired by welding; the surface of the hook should be smooth and free of cracks, folds, sharp angles, burrs, peeling, overburning and other defects.
The hook material can be forged from 20 high-quality carbon steel or special hook materials such as DG20Mn and DG34CrMo. The use of cast hooks is strictly prohibited. The material of the plate hook is generally A3, C3 ordinary carbon steel or 16Mn low alloy steel.
The longitudinal axis of the hook piece must be located in the rolling direction of the steel plate, and the hook pieces are not allowed to be spliced.
The hook piece of the plate hook should be riveted with countersunk head rivets, and rivets should not be used to connect the high-stress bending parts where the plate hook contacts the lifting point of the hoisted object.
Fully enclosed welding is not allowed between plate hook laminations, only intermittent welding is allowed.
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