钢铁件电镀以前须将表面的油污及氧化膜清除干净,原有工序是:三氯乙稀去油——化学或电化学去油——酸洗——净化处理。工序多,时间长,而且三氯乙稀对人体有毒害。借鉴兄弟单位应用优选法的经验,用了两个小时作了四次试验找到了去油——去锈一步法配方,由原来的1小时降低到5～10分钟左右(较厚氧化膜在10分钟)。 Before the electroplating of steel parts, the oil and oxide film on the surface must be cleaned out. The original process is: trichloroethane to oil - chemical or electrochemical degreasing - pickling - purification treatment. Many procedures, a long time, and trichloroethane on the human body poisoning. Learning from the experience of Brothers unit applying the optimization method, four experiments were conducted in two hours to find a one-time degreasing-descaling formula, which reduced from 1 hour to 5 to 10 minutes (thick oxide film in 10 minutes ).