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随着社会主义建设事业的飞跃发展,新建和扩建的工厂愈来愈多,气体渗碳炉在机械制造工厂热处理车间中的使用也将日益广泛。根据国内外的书籍和一些文献介绍,按其炉子的构造形式基本上分为二种:一种是利用电或煤气加热带马弗罐的;另一种是利用燃烧煤气的辐射管或电热器(此电热器是装置在管子中的)加热的无马弗罐气体渗碳炉。毫无疑问无马弗罐炉子在各方面要比有马弗罐的炉子好。镍是我国的一种稀有金属,绝大部分从国外进口的。所以对用无镍的马弗罐气体渗碳
With the rapid development of socialist construction, more and more factories are newly built and expanded, and the use of gas carburizing furnaces in the heat treatment workshop of the machinery manufacturing plant will also be increasingly widespread. According to domestic and foreign books and some literature introduction, according to the structure of the stove is basically divided into two types: one is the use of electricity or gas heating with muffle; the other is the use of gas burning radiant tube or electric heater (This heater is installed in the tube) heated muffle gas carburizing furnace. There is no doubt that muffle-free stoves are better than muffle-fired stoves in every respect. Nickel is a rare metal in China, the vast majority of imports from abroad. Therefore, the use of nickel-free muffle gas carburizing