What are the technical requirements for forging lifting hooks?
The technical conditions for forging lifting hooks are strictly required to ensure their safety, reliability and durability during use. The following are the specific requirements for the technical conditions of forging lifting hooks:
1. Material selection
The hook material should be made of high-strength and high-toughness steel, such as 20 carbon steel, DG20Mn, DG34CrMo and other special materials. These materials have been forged to ensure that the hook has sufficient strength and hardness to meet the needs of lifting operations.
It is strictly forbidden to use cast hooks, because cast hooks are often not as good as forged hooks in terms of performance, which has many defects and safety hazards.
2. Manufacturing process
The manufacturing process of forging hooks requires strict process control, including heat treatment, forging, molding, and mechanical processing of steel billets. During the forging process, it is necessary to ensure that the billet is fully deformed to obtain dense metal structure and improve the strength and toughness of the hook.
After the hook is formed, surface polishing and cleaning is required to remove burrs and scales and improve the surface finish of the hook.
3. Appearance and size
The surface of the hook should be smooth and there should be no defects such as cracks, wrinkles, acute angles, burrs, peeling and overburning. These defects can seriously affect the performance and safety of the hook.
The size and shape of the hook should comply with relevant standards and design requirements to ensure that it can cooperate well with lifting equipment and other lifting tools.
4. Marks and detection
The hook should be printed with signs that are not easy to wear to detect whether the opening degree has changed. These signs are usually located in two appropriate positions at a short distance from the hook.
The hook must undergo strict quality inspection before leaving the factory, including non-destructive testing and other non-destructive testing methods to ensure that its internal quality meets the requirements.
5. Scrap standards
If the hook appears during use, the wear of dangerous sections reaches 10% of the original size, and the opening degree increases by 15% compared to the original size, the hook should be scrapped and replaced in time to avoid the occurrence of safety accidents.
To sum up, the technical conditions for forging lifting hooks are strictly required, and they must comply with relevant standards and requirements in terms of material selection, manufacturing process, appearance and dimensions, marking and detection to scrapping standards.
The technical conditions for forging lifting hooks are strictly required to ensure their safety, reliability and durability during use. The following are the specific requirements for the technical conditions of forging lifting hooks:
1. Material selection
The hook material should be made of high-strength and high-toughness steel, such as 20 carbon steel, DG20Mn, DG34CrMo and other special materials. These materials have been forged to ensure that the hook has sufficient strength and hardness to meet the needs of lifting operations.
It is strictly forbidden to use cast hooks, because cast hooks are often not as good as forged hooks in terms of performance, which has many defects and safety hazards.
2. Manufacturing process
The manufacturing process of forging hooks requires strict process control, including heat treatment, forging, molding, and mechanical processing of steel billets. During the forging process, it is necessary to ensure that the billet is fully deformed to obtain dense metal structure and improve the strength and toughness of the hook.
After the hook is formed, surface polishing and cleaning is required to remove burrs and scales and improve the surface finish of the hook.
3. Appearance and size
The surface of the hook should be smooth and there should be no defects such as cracks, wrinkles, acute angles, burrs, peeling and overburning. These defects can seriously affect the performance and safety of the hook.
The size and shape of the hook should comply with relevant standards and design requirements to ensure that it can cooperate well with lifting equipment and other lifting tools.
4. Marks and detection
The hook should be printed with signs that are not easy to wear to detect whether the opening degree has changed. These signs are usually located in two appropriate positions at a short distance from the hook.
The hook must undergo strict quality inspection before leaving the factory, including non-destructive testing and other non-destructive testing methods to ensure that its internal quality meets the requirements.
5. Scrap standards
If the hook appears during use, the wear of dangerous sections reaches 10% of the original size, and the opening degree increases by 15% compared to the original size, the hook should be scrapped and replaced in time to avoid the occurrence of safety accidents.
To sum up, the technical conditions for forging lifting hooks are strictly required, and they must comply with relevant standards and requirements in terms of material selection, manufacturing process, appearance and dimensions, marking and detection to scrapping standards.
The technical conditions for forging lifting hooks are strictly required to ensure their safety, reliability and durability during use. The following are the specific requirements for the technical conditions of forging lifting hooks:
1. Material selection
The hook material should be made of high-strength and high-toughness steel, such as 20 carbon steel, DG20Mn, DG34CrMo and other special materials. These materials have been forged to ensure that the hook has sufficient strength and hardness to meet the needs of lifting operations.
It is strictly forbidden to use cast hooks, because cast hooks are often not as good as forged hooks in terms of performance, which has many defects and safety hazards.
2. Manufacturing process
The manufacturing process of forging hooks requires strict process control, including heat treatment, forging, molding, and mechanical processing of steel billets. During the forging process, it is necessary to ensure that the billet is fully deformed to obtain dense metal structure and improve the strength and toughness of the hook.
After the hook is formed, surface polishing and cleaning is required to remove burrs and scales and improve the surface finish of the hook.
3. Appearance and size
The surface of the hook should be smooth and there should be no defects such as cracks, wrinkles, acute angles, burrs, peeling and overburning. These defects can seriously affect the performance and safety of the hook.
The size and shape of the hook should comply with relevant standards and design requirements to ensure that it can cooperate well with lifting equipment and other lifting tools.
4. Marks and detection
The hook should be printed with signs that are not easy to wear to detect whether the opening degree has changed. These signs are usually located in two appropriate positions at a short distance from the hook.
The hook must undergo strict quality inspection before leaving the factory, including non-destructive testing and other non-destructive testing methods to ensure that its internal quality meets the requirements.
5. Scrap standards
If the hook appears during use, the wear of dangerous sections reaches 10% of the original size, and the opening degree increases by 15% compared to the original size, the hook should be scrapped and replaced in time to avoid the occurrence of safety accidents.
To sum up, the technical conditions for forging lifting hooks are strictly required, and they must comply with relevant standards and requirements in terms of material selection, manufacturing process, appearance and dimensions, marking and detection to scrapping standards.
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