锻造模具在热处理时由于氧化与脱碳,大量损耗金属材料,严重影响模具性能和使用寿命。特别是五吨锤以上的大型模具,加热温度高、保温时间长,加之长期沿用模具装钢包填木炭、铁屑保护的旧工艺,造成氧化与脱碳特别严重。工人劳动强度大,环境污染及能源设备利用率低。我们厂是专业化锻铸件生产厂,模具需用量大,种类繁多,急需革新锻模热处理保护工艺。我们先后采用了控制炉内气氛、模具表面涂制耐高温漆及涂刷硼酸涂料等方案,经过较长时间对比试验,实践证明,耐高 Forging die in the heat treatment due to oxidation and decarburization, a large loss of metal materials, seriously affecting the mold performance and service life. In particular, more than five tons of hammer over the large mold, heating temperature, holding a long time, combined with long-term use of mold ladle filled charcoal, iron protection of the old process, resulting in oxidation and decarburization is particularly serious. Labor intensity, environmental pollution and low utilization of energy equipment. Our factory is a professional production plant forging and casting, mold required a large amount of variety, urgent need for innovation forging heat treatment protection process. We have adopted a control furnace atmosphere, the mold surface coating high temperature paint and brushing boric acid paint and other programs, after a relatively long time comparison test, proved that high