我厂生产的各种鍋爐上的吹灰管和热加工車間应用的热电偶保护管,原来都是采用耐热鋼制成的。但耐热鋼中的鎳、鉻是比較貴重的稀缺的元素,因此不但增加生产成本,而且供应也比較紧张。为了降低成本,解决材料代用問题,我們采用低碳鋼管經固体渗鋁和噴鋁,來代替耐热鋼管(工件尺寸比較小的采用渗鋁法,較大、較长的用噴鋁法),取得了很大的效果。 I plant a variety of boiler soot blowing tube and thermal processing plant thermocouple protection tube used, the original is made of heat-resistant steel. However, heat-resistant steel nickel, chromium is more expensive and scarce elements, so not only increase production costs, but also supply more intense. In order to reduce costs and solve the problem of material substitution, we use low-carbon steel pipe by solid aluminizing and aluminum spray to replace the heat-resistant steel pipe (the smaller the size of the workpiece using aluminizing method, the larger, longer aluminum spray method) Great effect has been achieved.