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本刊1984年第二期发表了潘建国同志的“齿轮液体碳氮共渗亚温淬火”一文,用尿素取代氛化钠盐浴,虽然仍存在有毒的氰根,并未彻底解决剧毒污染问题,但原材料费用有所降低。目前,国内一些仍在使用氛盐浴单位,若采用尿素则是一种代用方法。最近我们收到伟江汪同志对使用尿素盐浴的看法,也收到张先立同志反映在使用尿素盐浴进行碳氮共渗实践中所得出的否定结捧。妆必都质该子以首辄_毅们以斋.质尺量不用剧秦裁扑的花学热处理工艺,提倡用气体碳氮共渗或氮碳共渗等是有发展前途的工艺。当然,也应发展无毒盐浴,以及有毒盐浴的废渣废水的有效处理,希望目前正在解决使用氰盐问题的有关同志,提出你们的意见和经验,以深入讨论并共同推动这项改革工作。
The second issue of 1984 issue of Comrade Pan Jianguo “gear liquid carbonitriding sub-temperature quenching ” article, replaced with urea sodium salt bath, although there is still toxic cyanide, did not completely solve the drama Poisonous pollution, but raw material costs have been reduced. At present, some domestic still using salt bath units, if the use of urea is a substitute method. Recently, we have received Comrade Wang Wei’s views on the use of urea salt baths and received the negative conclusion that Comrade Zhang Xianli reflected in the practice of carbonitriding using urea salt baths. Makeup must be the quality of the first wave _ Yi Yi who are fasting.Quality does not need to play the game of firework heat treatment process, advocating the use of gas carbonitriding or nitrocarburizing and so there is a promising process. Of course, non-toxic salt baths should also be developed as well as effective treatment of waste and effluent from poisonous salt baths. We hope that relevant comrades on the issue of cyanide salt are currently being solved and put forward your opinions and experiences for deepening discussion and jointly promoting this reform. .