太原钢铁公司为消除炼钢炉烟尘对环境的污染,净化含氧化铁的红色烟尘,自制了一台大型通风机。这台设备需要一根如图1所示的大型机轴,由于该通风机是在腐蚀性环境中工作,因而要求通风机轴表面要耐腐蚀。为此,该公司委托我厂制造。此轴采用45优质碳素结构钢锻成,经正火处理。按图纸要求轴的表面应有2～2.5mm厚的不锈钢耐腐蚀 Taiyuan Iron and Steel Company to eliminate the pollution of the steel furnace soot on the environment, purifying the red smoke and dust containing iron oxide, made a large fan. This equipment requires a large shaft as shown in Figure 1, which requires corrosion resistance on the shaft surface of the blower as it works in a corrosive environment. To this end, the company commissioned my factory. This shaft is made of 45 high-quality carbon structural steel, normalized. According to the requirements of the surface of the shaft should be 2 ~ 2.5mm thick stainless steel corrosion-resistant