论文部分内容阅读
低温电解渗硫是七十年代发展起来的一种新型的电化学反应的热处理方法,是用来提高金属机械零件抗咬、耐磨的一种新方法,在国外被称为二十一世纪的热处理技术。它与常用的渗碳、氮化、碳氮共渗等化学热处理方法比较起来,具有一些独特的优点。第一,处理温度低,在190℃左右,既节约能源,又不影响零件原来的机械性能,处理后,零件变形非常小,一般不足几微米。第二,处理时间短,约十五分钟左右。第三,无公害(不用剧毒的氰盐,只用硫氰化钾和硫氰化钠共晶混合物)。第四,设备简
Cryogenic electrolytic sulfurization is developed in the seventies a new type of electrochemical reaction heat treatment method is used to improve the anti-bite metal machinery parts, wear a new method, known in foreign countries in the 21st century Heat treatment technology. Compared with the commonly used methods of chemical heat treatment such as carburizing, nitriding and carbonitriding, it has some unique advantages. First, the processing temperature is low, at about 190 ° C, which saves energy and does not affect the original mechanical properties of the part. After the treatment, the deformation of the part is very small, generally less than a few microns. Second, the processing time is short, about fifteen minutes. Third, pollution-free (without highly toxic cyanide, only potassium thiocyanate and sodium thiocyanate eutectic mixture). Fourth, equipment is simple