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一、前言线材冷拔之前必须彻底清除表面的氧化铁皮。清除氧化铁皮的方法有:化学酸洗、电解酸洗、机械除鳞和超声波酸洗等。目前世界各工业国广泛采用的是化学酸洗法,并逐渐用盐酸酸洗代替硫酸酸洗,用连续自动酸洗线代替单槽间歇酸洗,并且把废酸再生装置和酸洗线联结在一起。这不仅能消除废酸造成的污染,而且能稳定酸洗工
First, the foreword Cold drawn wire must be thoroughly removed before the surface of the oxide scale. Removal of iron oxide skin are: chemical pickling, electrolytic pickling, mechanical descaling and ultrasonic pickling. At present, the chemical industry pickling method is widely adopted by various industrial countries in the world, and hydrochloric acid pickling instead of sulfuric acid pickling, continuous automatic pickling line instead of single tank intermittent pickling, and waste acid regenerator and pickling line are used together . This not only eliminates the pollution caused by waste acid, but also stabilizes pickling