1. Raw material selection: Common raw materials for screws include carbon steel, stainless steel, alloy steel, etc. Choose the appropriate one according to different uses and requirements
raw materials.
2. Material processing: Process the raw materials into thick screws or steel wires, and perform heat treatment, surface treatment and other processes.
3. Cold heading forming: The thick screw or steel wire is cold-headed into the basic shape of the screw through multiple rolling, drawing and other processes.
4. Heat treatment: annealing, quenching and other processes are performed on the screws to improve the strength and toughness of the screws.
5. Surface treatment: The surface of the screw can be treated with galvanizing, chromium plating, spray coating, etc. to improve its corrosion resistance and appearance quality.
6. Testing and packaging: The screws are strictly tested in terms of size, appearance, mechanical properties, etc., and they are packaged after passing the test.
The above is the basic process of screw production process. Different types and specifications of screws may be different. The manufacturing process of screws needs to be strictly followed
Process regulations and quality standards to ensure the quality and service life of screws.