What are the technical requirements of the hook hook

2024-01-26

Hook is a wide range of applications, but standard hooks also require certain basic technical requirements. What are the technical requirements for hook hooks? What are the details of the technical requirements of the hook? Take a look at the relevant knowledge of the editors for you below!

Basic technical requirements for hooks are:

1. Purchasing hooks should be used for technical documents such as the manufacturer's qualification certificate; the purchase of hooks for important departments such as: railways, ports, etc., hooks need to strictly inspect the factory (exploring).

2. Hooks must not have defects that affect the performance of safe use; hook defects must not be welded; the surface of the hook should be smooth, and there must be no defects such as cracks, folding, sharp horns, burrs, abolition, and overburning.

3. You can select two appropriate positions to print the signs that are not easy to wear at the shortest distance of the hook opening, and measure the distance of the logo as a basis for detecting the changes in the opening degree in the use.

4. The hook material can be made of 20 high -quality carbon steel or hook -specific materials DG20MN, DG34CRMO, etc. for forged, and it is strictly forbidden to use the use of casting hooks. The materials of the hook are generally used in A3, C3 ordinary carbon steel, or 16MN low -alloy steel.

5. The vertical axis of the hooks must be located in the rolling direction of the steel plate, and the hook slices are not allowed to be spliced.

6. The hook hook slice is riveted with a imperial rivet, and the high -stress curved part of the contact between the hook and the hanging of the hanging material shall not be connected with a rivet.

7. Full closed welding is not allowed between the hook stacks, and only interrupted welding is allowed.

8. If the hook that has exceeded the period of use or the overload should be used for scrap treatment to ensure the safety of its use.

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