Direction of localization of steel for automotive fasteners
The performance requirements, smelting and rolling characteristics of steel for automotive fasteners are introduced; The current situation and development direction of relevant clean bolt steel, microalloyed non-quenched and tempered steel, non-annealed steel, boron steel, and high strength steel resistant to delayed fracture are described; The direction of efforts to implement the localization of steel for automobile fasteners is pointed out.
01-05
2023
Key control points of fastener heat treatment
Industry insiders all know that the heat treatment of fasteners can make them have a certain strength, good plasticity, toughness, etc., and then be better used, while reducing the occurrence of relaxation, ensuring the quality and reliability of fasteners. In addition to the general quality inspection and control, there are also some special quality inspection and control for the heat treatment of fasteners. Now let's talk about several control points of heat treatment.
01-05
2023
What surface defects are there in the manufacturing process of screw fasteners
We can see the screw fasteners in all products. Most of the screw fasteners are head type, with uniform threads without burrs and bright appearance. But are all screw fasteners like this? Of course not. During the production of screw fasteners, poor technology or machine adjustment will cause many surface defects.
01-05
2023
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