【摘要】 氮化能大幅度地提高金属材料的疲劳强度、耐磨性、耐蚀性等;同时,由于氮化温度低、工件变形小,因而广泛用在要求变形小、尺寸稳定性高、耐磨性好的工件上。但是一般气体氮化工艺要获得0.30～0.60mm渗层,时间都需40～90h。故而耗时太长,耗能太多,同时氮化白层有脆性、研磨白层既精细又费时。因此,国内外学者围绕着缩短氮化时间和控制白层这两方面急待解决的课题做了大量工作。我们研制成功的在既不增加设备又不添加催渗剂,而能缩短氮化周期又能改善氮化层质量的新工艺,可能是氮化工艺的一种美好前景。更多还原

【Abstract】 Nitriding can improve greatly the fatigue strength, wear and corrosion resistance of matal materials, and nitriding temperature is low and the deformation of nitrited component is small. So it is widely used on the components which require small deformation, low dimension tolerance or good wear resistance. However, the common gas-nitriding process costs a lot of time and consumes a great deal of energy, the nitrided white layer is brittle and abrading it is an elaberate and time-consuming process. If you want to get a 0. 30ram-0. 60mm thick layer with common gas-nitriding, it will take 40-90h. Much work has been done at home and abroad on shortening nitriding time and controlling the white layer. The mew process we developed may be a bright future of nitriding technology. This process can not only shorten the cycle of nitriding but also improve the quality of nitrided layer without adding any equipment and catalyst.更多还原