The sedan camshafts re-melting and chilling process and production technique of shell mold camshaft castings to be re-melted and chilled were introduced.
介绍重熔淬火硬化处理凸轮轴工艺，以及供重熔淬火用的壳型凸轮轴的生产工艺。
2
In blow molding, a molten tube of thermoplastic material is formed, and then compressed air is used to blow up the tube, forcing the material to take the shape of the interior of a chilled blow mold.
在吹塑，熔融的热塑性材料管的形成，然后压缩空气用于炸毁管，迫使材料采取的形状，内部的冰鲜吹塑。
3
The sedan camshafts re-melting and chilling process and production technique of shell mold camshaft castings to he re-melted and chilled were introduced.