1, smelting. The purity of more than 99.9% of the electrolytic copper bai into the smelting furnace for high temperature melting, and du line furnace analysis, spectral zhi analysis and chemical analysis, to ensure that the chemical composition of the high-precision copper plate production materials to reach the national standard.
2, ingot production. Selection of semi-continuous casting process, the composition of ingots.
3, hot rolling, at the moment the billet just after heating and not cooling, rough surface, loose internal structure, the condition of the soft state, each rolling again, should be milling, to avoid impurities in the processing into the material, the formation of products with porosity or skinning and other phenomena occurring.
4, annealing. After hot rolling, annealing of the material, and then hot rolling, cold rolling, annealing, pickling and other processes, by repeating the process, and then the rolling process, the lightness of the processing force of the resolution of the state of the value of the copper plate, and ultimately through the rolling, to reach the desired thickness.
5, leveling treatment. Make the surface of copper plate flat, no waves.
