Many fastener manufacturers often ignore some problems in the production of automotive fasteners. For example, when the automotive fasteners are heat treated, it is easy to occur that the fasteners can not be used normally. The following reasons are analyzed by the manufacturer of automobile fastener of Oberoi
1. Too much carbide is caused by insufficient quenching time
2. Qualified surface hardness, low tensile strength --- insufficient heating time
3. Qualified hardness, high tensile strength --- tempering temperature too low, about 10 degrees higher
4. The surface layer of annealed microstructure is wormlike, the secondary layer is decarburized, and the core structure is normal --- the cooling rate is too fast
Founded in 1984, Shanghai Oberoi automobile fastener factory is a professional manufacturer of automobile fasteners of several series and hundreds of products, such as automobile accessories, motorcycle accessories, various fasteners, stamping parts, etc. We pay attention to every detail and check the quality level by layer. Our idea is to do a good job in products and services, and develop together with supporting suppliers!
