1. The spinning machine should be operated by a dedicated person. The spinning machine equipment should be checked before spinning the head. The hydraulic components, rotating table, and spinning roller should operate normally, the lubrication system and hydraulic system should operate normally, and the surrounding area of the spinning machine should be clean. No obstacles.

　　2. On the drum press, build the drum from the top center according to the shape of the head, and check the shape of the drum at any time with a template. The error should meet the requirements of the drawings or standards.

　　3. Select the appropriate spinning roller according to the product drawing or dispatching card. After the roller is installed, run the spinning machine with an empty car. After normal, install the drum-made blank on the spinning machine, and rotate the test run to align the center of the blank to confirm that it is firmly fixed Afterwards, adjust the position and angle of the spinning roller, and move the blank to be spinning after the drum is made to the spinning roller position, so that the roller is in contact with the edge of the drum.

　　4. Rotate the corner surface of the head from bottom to top from the edge of the drum. When spinning, the roller pressure should be gradually applied to slowly deform the head being rotated to prevent deep spin marks or local thinning exceeding the allowable range. , So that the screw head is gradually formed to the shape required by the drawings or standards. During the spinning process, check the shape with the template at any time, and the error should meet the requirements of the drawings or standards.

　　5. For ordinary low-alloy steel heads, the material should be annealed and softened before spinning, and stress relief heat treatment should be performed after spinning is completed. For steel with larger thickness or higher strength, intermediate annealing should be performed as needed during spinning. Eliminate cold work hardening of materials and prevent cracks. For the specific requirements of stress relief heat treatment and softening annealing treatment, see the general heat treatment process.

　　6. If there are surface defects in the spinning head, it should be repaired as required. For the requirements of head repair, see head repair process.

　　7. The spinning specification parameters of each head or each batch of heads with the same specifications should be recorded and archived by the inspection department.