前言在机械产品向高速、高效、重载大型化以及低消耗的发展中,高速重载齿轮在化工、冶金、矿山,电站等关系国民经济命脉部门的应用将越来越广泛,同时对这些齿轮的要求也越来越高。硬齿面的高速重载齿轮,具有制造精度高、承载能力大、体积小、使用寿命长等特点,比软齿面齿轮应用更为广泛当今各国在硬齿面齿轮的材料选用上,各不 Preface In the development of high-speed, high-efficiency, heavy-duty large-scale and low-consumption mechanical products, the application of high-speed heavy-duty gears in the vital sectors of the national economy such as chemical industry, metallurgy, mining and power station will be more and more widespread. The requirements are also getting higher and higher. Hardened gear high-speed heavy-duty gear, with manufacturing precision, load capacity, small size, long service life, etc., is more widely used than soft-tooth gear applications in today’s countries in the hardened gear material selection, each not