我厂高速钢刀具用50%甲酰胺水溶液进行氧碳氮共渗,兼有氮化与蒸汽处理的效果,显著提高了刀具使用寿命。1.试验选用50%甲酰胺水溶液滴注渗剂,在RJJ-75-9 T渗碳炉中进行试验与生产,工艺曲线如图1。试验结果如表1及图2～4。在排气阶段,从滴入渗剂到废气能够点燃,需要一定时间。用甲酰胺排气时,则未点燃的有害废气会污染环境。用乙醇排气时, I plant high-speed steel cutting tools with 50% formamide aqueous solution of carbonitriding, both nitriding and steam treatment effect, significantly improve tool life. 1. Test selection of 50% formamide solution infiltration penetration, RJJ-75-9 T carburizing furnace in the test and production, process curve shown in Figure 1. The test results are shown in Table 1 and FIGS. 2-4. During the exhaust phase, it takes time to drip into the exhaust gas to ignite. Exhaust with formamide, the unlit of harmful emissions will pollute the environment. When degassing with ethanol,