1. Precise cutting: Cut the brass rods according to the product specifications, ensuring uniform length and correcting the end faces. Remove any warped or defective raw materials to guarantee consistent product dimensions.
2. Integrated forging process: Utilize cold forging technology for extrusion processing, forming the hexagonal shape in the middle of the metal; compress the internal structure of the metal to eliminate air holes and sand holes, enhancing torsional and compressive strength, which is superior to ordinary turned parts.
3. Fine polishing: Smooth the edges and corners of the raw material, remove the forging burrs, align the ends for coaxiality, polish the end faces, and prevent installation jamming or air leakage in the seal.
4. Precision threading: Use a dedicated threading machine to process the external threads at both ends, preserving the metal fiber structure. The thread profile is full, wear-resistant, and has better sealing performance.
5. Cleaning and anti-oxidation: Use ultrasonic cleaning to remove oil stains and metal debris, perform passivation anti-oxidation treatment to prevent the brass from blackening and oxidizing, thereby extending the service life.
6. Quality inspection: Conduct thread pass/failure inspection, appearance screening, and pressure testing inspection. Check for cracks, missing teeth, and deformed defective products. After passing the inspection, pack and ship the products.