通过对 2 80 0XP电铲设备中径节 3/ 4(即模数 33 8)齿轮轴沿齿沟中频淬火三要素(即感应器的设计制造、加热工艺、冷却工艺 )的试验研究 ,设计并制作出合理的感应器 ,确定了最佳的工艺参数。经试制 ,沿齿沟淬火硬度和淬硬层深均匀分布 ,完全达到了P&H公司的技术要求 ,实现了大模数重载齿轮轴沿齿沟中频淬火的国产化 Through the experimental research on the three elements of mid-frequency quenching (ie, inductor design and manufacture, heating process and cooling process) of gear shaft 3/4 (module 33 8) of 2 80 0XP shovel equipment, Produce a reasonable sensor to determine the best process parameters. After trial production, along the tooth groove hardness and hardened hardened deep uniform distribution, fully meet the P & H company’s technical requirements, to achieve a large modulus heavy gear shaft along the tooth groove IF quenching