1983年前,我厂热处理工艺为液体氰化,有八台盐浴炉及回火炉,总功率1000KW,年耗电250万度,年耗化工原料:氰化钠三十吨、氯化钡170吨。液体氰化工艺成本高,耗电多,公害大,药物残渣难处理,操作者工作环境恶劣,劳动强度大,而且产品质量不稳定,尤其薄壁件变形大,达 Before 1983, our factory heat treatment process for the liquid cyanide, there are eight salt bath furnace and tempering furnace, the total power of 1000KW, annual power consumption of 2.5 million degrees, annual consumption of chemical raw materials: 30 tons of sodium cyanide, barium chloride 170 Ton. Liquid cyanide process costs high, more power, pollution, difficult to deal with drug residues, the working environment of the harsh, labor-intensive, and unstable product quality, in particular the deformation of thin-walled large, up to