Carbon structural steel is commonly used for high-quality hinge in the market. First, hot rolled steel strip is made into steel strip with thickness less than 4mm through further cold rolling.As it is rolled at normal temperature without ferric oxide, the cold rolled strip has good surface quality and high dimensional accuracy, coupled with annealing treatment, and has excellent mechanical and technological properties.
The poor quality hinge is easy to rust after a period of use, which is not beautiful and affects the use effect of hinge.In fact, it is true that enterprises make low-quality products with high quality for higher profits and sell fake products. Such hinges are not durable and may break after being used for some time.However, we cannot effectively judge such situation during the purchase or even installation stage.
