Mirror mold materials are more important when smelting requires a series of advanced processes


Mirror mold material is not only a chemical composition problem, but also a series of advanced processes such as vacuum degasing, argon protection ingot, vertical continuous casting and rolling, soft forging, etc. are required during smelting, so that the mirror mold steel has a series of advantages such as fewer internal defects, fine impurity particle size, high dispersion degree, fine metal grain size, good uniformity, etc., in order to meet the requirements of polishing to mirror mold steel. The surface treatment technology of mold accessories is a system engineering that changes the morphology, chemical composition, organizational structure and stress state of the surface of high-precision mold accessories through surface coating, surface modification or composite treatment technology to obtain the required surface properties. Nitriding process has gas nitriding, ion nitriding, liquid nitriding and other ways, each of which has several kinds of nitriding technology, which can adapt to the requirements of different steel types and different workpieces. From the way of surface treatment, it can be divided into: chemical method, physical method, physical chemical method and mechanical method.

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