Why is Centrifugal Casting Used in Sleeve Manufacture?
Centrifugal casting is superior to as-cast in many ways. First and foremost is the ability, by precise control of the rotational speed, to compact the more important strength molecules of the material in different places on the cross section. Also, mechanical impurities are slung to the outside of the casting thereby allowing scrap material to be removed in the machining process. By using specific temperature control in the pouring process, consistency and density of the material can be changed according to the hardness and surface wear requirements. In centrifugal casting, hard spots are almost non-existent because of uniform compacting of the molten material.
