中小型化肥厂所广泛采用的铝合金换热器,由于循环冷却水处理效果不佳或根本没有处理,往往在短时间内就会结垢、堵塞,常需进行酸洗处理,因所用的铝板较薄,酸洗次数较多,选用(?)的种类以及缓蚀剂时必须非常审慎.我们(?)2号铝合金(LF_2)在稀硝酸中的腐蚀行(?)以及多种缓蚀剂进行了研究,所提出的硫(?)—六偏磷酸钠复合缓蚀剂,经泰州 Small and medium-sized fertilizer plant widely used aluminum alloy heat exchanger, as the cooling water treatment effect is poor or not at all, often in a short period of time will scale, blockage, often require pickling treatment, due to the use of aluminum Thinner, more pickling times, the choice of (?) Type and inhibitor must be very careful when we (?) 2 aluminum alloy (LF_2) in dilute nitric acid corrosion line (?) And a variety of corrosion Agent was studied, the proposed sulfur (?) - Sodium hexametaphosphate composite corrosion inhibitor, via Taizhou