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为保证高速钢齿轮铣刀产品达到一定的光洁度要求,高速钢齿轮铣刀毛坯经过毛铲(粗铲)后,要进行一次预先热处理(原来是毛淬火.现在是正火)使坯料组织细化,以便保证在进行光铲(精铲)时达到6级光洁度的要求。这是一道提高生产率和保证产品质量的必要生产工序。
In order to ensure high-speed steel gear milling products to achieve a certain degree of finish requirements, high-speed steel gear milling cutter blank after shovel (rough shovel), to conduct a pre-heat treatment (the original is quenching wool is now normalized) In order to ensure that the shovel (shovel) to achieve 6-level finish requirements. This is a necessary production process to increase productivity and ensure product quality.