1. Component melting: Mix copper and zinc raw materials according to the specifications of H62, HPb59, etc., and melt them at high temperature to mix and remove metal impurities and gases. Adjust the mixture to reach the standard of brass molten liquid to ensure the purity of the material.
2. Casting block formation: Pour and cool the melted copper liquid to form brass casting blocks. Consolidate the internal structure, avoid air holes and loose defects, and ensure the strength of the sheet base material.
3. Hot rolling rough processing: Heat the casting block and perform high-temperature rolling. Repeatedly stretch and shape to press it into a basic thick plate, improving the metal toughness and eliminating internal stress.
4. Cold rolling fine processing: Perform secondary rolling at room temperature, precisely control the thickness and flatness of the sheet, improve the surface smoothness, reduce size tolerances, and enhance the sheet accuracy.
5. Straightening and cutting: Correct the flatness of the sheet, remove burrs at the edges, cut according to the specifications in length and width, smooth the surface, and prevent deformation and cracking.
6. Surface treatment + quality inspection: Clean and remove oil, perform passivation for oxidation resistance, prevent the sheet surface from blackening; test hardness, size, and appearance, and select qualified products for storage.