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长期以来,用于氮化处理设备中的氮化箱均采用不锈钢或耐热钢制造,以求提高氮化箱的使用寿命。但根据我们的经验,不锈钢制造的氮化箱最高使用寿命也只有一千小时左右。虽然它的寿命比碳钢的高两三倍,但仍很不经济,加工制造也很困难。采用普通碳钢制造氮化箱虽然价格便宜、加工方便,但使用寿命短(约四、五百小时)。针对这些情况,通过试验,用涂层的办法解决了问题,防止了氮化箱的过早老化。 1.大家知道,氮化时氨气在高温下分
For a long time, nitriding boxes used in nitriding equipment are made of stainless steel or heat-resistant steel, in order to improve the service life of nitriding box. However, according to our experience, the maximum service life of nitriding boxes made of stainless steel is only about one thousand hours. Although it has a life expectancy two or three times higher than carbon steel, it is still uneconomical and it is difficult to manufacture. Although the use of ordinary carbon steel nitride box cheap, easy processing, but the service life is short (about four, five hundred hours). In response to these circumstances, through the test, with the coating solution to the problem, to prevent premature aging nitriding. 1. We all know that nitriding ammonia at high temperature points