通过对电铲环形辊道的热水 -空气间歇淬火、大模数齿轮轴沿齿沟中频淬火、提升卷筒氧 -丙烷火焰淬火的热处理技术攻关 ,总结出大型电铲锻件热处理的一些工艺特点 ,并且通过工艺性试验及生产性试制 ,达到了美国哈斯尼菲格尔公司 (P&H公司 )的技术要求 ,实现了大型电铲锻件的国产化 Through the hot water - air intermittent quenching on the circular roller table of power shovel, the large modulus gear shaft is quenched along the tooth groove by intermediate frequency, the heat treatment technology to enhance the oxy-propane flame quenching of the reel is studied, and some technological features of heat treatment of the large electric shovel forging are summarized , And through the technical test and production trial, reached the United States Hasniferiger company (P & H company) technical requirements, to achieve a large electric shovel forgings localization