After that,anisothermal treatment is adopted so that it has good abrasive resistance. The practical applicationshows that the average lifespan of 9Cr2Mo cutter has been prolonged obviously.

• 选用了具有良好耐磨性的等温热处理工艺进行了生产性试验,结果表明,9Cr2Mo滚刀平均寿命得到显著提高。