The first is the coil unit. According to the requirements in real life, the special screw factory needs to find out the factory coil, specification, material and product name, as well as the weight and quantity, and then purchase some suitable wire rods. When buying, you should pay attention not to choose low-quality ones for cheap, but for the sake of life, it is better for everyone to choose high-quality ones.
stainless steel screw
The second is annealing, which can increase the forging ability of screws, so that the production of post-processing will be more convenient.
The third is pickling. Although the link is relatively simple, it is enough to deal with the surface of the screw, but this link will make the next link more convenient.
The fourth is to draw the thread to undertake the pickling process above.
Fifth, the beginning, this link is to complete the shaping of the teeth.
Sixth, heat treatment is performed to change the mechanical properties of the screw.
Seventh, electroplating, in order to meet the requirements of customers and the beauty of the product, this link is very important.
