25Cr3MoA钢齿轮的三段法渗氮工艺

Three stage nitriding process of 25Cr3MoA steel gear

对25Cr3MoA钢齿轮进行了不同工艺的渗氮试验,结果表明,当渗氮层深度要求0.35~0.41 mm时,可通过三阶段渗氮工艺,解决齿轮、内花键长时间渗氮显微组织出现脉状、网状氮化物等问题。

Nitriding test of 25Cr3MoA steel gear was carried out.The results show that when the depth of nitrided layer is 0.35-0.41 mm,the problem of the pulse-like and network-like nitride appearing in the microstructure of gears and internal splines during long-term nitriding can be solved by means of the three-stage nitriding process.