齿轮的表面硬化

Surface Hardening of the Gear

齿轮是最常用的机械零件之一。对齿轮进行表面硬化处理,如渗碳、渗氮、喷丸、激光淬火、感应淬火、复合处理等,可提高表面硬度和耐磨性,从而延长使用寿命。对于齿轮而言,这些表面硬化技术都有各自的特点,但尚有待作进一步的研究发展,以便扩大应用范围、提高齿轮精度、降低生产成本等。

The gear is one of the most commonly used machinery paris. Surface hardening technologies, such as carburizing, nitriding, shot peening, laser hardening, induction hardening, composite hardening and so on, may allow the gear to gain in surface hardness, wear resistance, and therefore, service life. So far as the gear manufacturing is concerned, above-mentioned surface hardening technologies have respective features but remain to be further developed so as to expand their usable gear kind, to raise the gear precision, to reduce the production cost, etc.