英语翻译分析了某低碳合金结构钢（20CrMnMoH）制的主传动主动齿轮渗碳淬火、高频退火后花键部位批量裂纹产生的原因,是

分析了某低碳合金结构钢（20CrMnMoH）制的主传动主动齿轮渗碳淬火、高频退火后花键部位批量裂纹产生的原因,是由于渗碳淬火组织不良、高频退火工艺及锻坯组织控制不当造成.结果表明,严格控制锻坯质量、改进渗碳淬火及高频退火工艺,可避免高频退火后裂纹的产生.
A low carbon alloy structure steel was analyzed. The main reason for the transmission system (20CrMnMoH) active gear carburizing quenching, annealing after high frequency bulk crack spline parts, is due to poor structure, high-frequency carburizing and quenching annealing process and microstructure control improper forging billet. The results show that, the strict control of the forging quality, improvement of carburizing and quenching and high frequency annealing process, can avoid the crack of high frequency annealing