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自79年以来,耐火纤维在热处理炉上开始推广使用,取得了相当显著的节电效果,但一般用于箱式电炉较多。目前,改造方法仍以包复法为主,特别在井式炉上,一般都是在原炉衬上包复一层10mm耐火纤维毡。79年我厂曾在JT-105井式渗碳炉(以后简称为炉子)上应用此法进行改装。改装后起初一、二个月中节电效率保持在28％左右,但经受不了长时间的考验。这种包复法存在着以下几个问题:
Since 79 years, refractory fiber in the heat treatment furnace began to promote the use of, achieved considerable energy-saving effect, but generally more for box-type electric furnace. At present, the reconstruction method is still mainly based on the package recovery method, especially in the pit furnace, which is usually coated with a layer of 10mm refractory fiber mat on the original lining. 79 years I plant in the JT-105 Pit type carburizing furnace (hereinafter referred to as the stove) to apply this method to be modified. After the first modification in the first two months, saving efficiency remained at about 28%, but can not stand the test of time. There are several problems with this package recovery method: