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通过铸渗工艺（在碲或碲化物作用下），可使凸轮轴工作表面形成4～8mm白口层，其硬度为48～50HRC；以求达到不用冷铁生产冷激铸铁凸轮轴．
Infiltration through the infiltration process (in the tellurium or telluride role), the camshaft can work surface to form a 4 ~ 8mm white layer, the hardness of 48 ~ 50HRC; in order to achieve without chilled iron cast iron camshaft production.