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能改变钢铁和有色合金工件的组织与性能的热处理工艺,是保证机械产品质量的关键之一。其中,化学热处理尤为重要。因为它可以改变工件表层成份、组织和性能。渗碳、氮化、钽铬铝共渗等工艺,可分别或同时赋予工件耐磨、减摩、耐蚀、抗高温氧化或强韧性。而且可在较低级的材料基体上,得到相当于
One of the keys to ensuring mechanical product quality is the heat treatment process that can change the microstructure and properties of steel and non-ferrous alloy parts. Among them, chemical heat treatment is particularly important. Because it can change the surface composition of the workpiece, organization and performance. Carburizing, nitriding, tantalum chromium and aluminum co-infiltration process, respectively, or at the same time give the workpiece wear-resistant, anti-friction, corrosion resistance, high temperature oxidation or toughness. And can be lower in the material matrix, get the equivalent