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铅淬火是钢丝生产中不可缺少的热处理工序之一,该工序是将A_3点以上温度(一般850～950℃)的线材,在450～550℃的铅液中冷却,使线材生成一种有利于其后通过引拔达到高强度的组织即索氏体组织。这对于提高线材的性能,特别是提高高级弹簧钢丝的综合机械性能具有重要意义。目前国内外铅池的封闭大部份采用木炭,但因木炭在450～559℃的铅液表面上易燃烧,耗量相当大,有时甚至不能起作用,
Lead quenching is one of the indispensable heat treatment processes in the production of steel wire. The process is to cool the wire rod with the temperature above A_3 (usually 850-950 ° C) in the lead liquid at 450-550 ° C, Later lead to high-strength tissue through the lead that sorbite tissue. This is of great significance for improving the performance of the wire, in particular for improving the overall mechanical properties of the high-grade spring wire. At present, most of the domestic and foreign lead ponds are closed with charcoal, but because charcoal is easy to burn on the surface of lead liquid of 450-595 ℃, the consumption is quite large and sometimes can not even work.