Customized chromium carbide powder
碳化铬粉末可与其他耐磨材料粉末(如碳化钨、二硫化钼等)混合,形成复合涂层,兼具高耐磨性和自润滑性,摩擦系数低至0.05,适用于无润滑或难润滑工况。在造纸机械烘缸表面,该复合涂层可减少纸张摩擦损伤,防止粘纸,提高生产效率。粉末粒径均匀,粒度分布偏差小于10%,确保涂层微观结构一致,避免性能缺陷。主要的生产方法包括电弧炉法和碳热还原法。碳热还原法制备的粉末粒径更细,成本更低,适合大规模应用。粉末氧含量低于0.2%,降低了涂层中的孔隙率和夹杂物,提高了涂层的致密性。当喷涂到汽车发动机气门挺杆上时,碳化铬粉末可减少 80% 的磨损,从而延长发动机大修间隔。
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