First, the casting performance is good. It has good fluidity, can cast complex shape parts, such as the engine cylinder body with complex cavity structure cast with gray cast iron is more appropriate. And its shrinkage rate is small, which can reduce the probability of casting shrinkage holes, cracks and other defects.
The second is the excellent shock absorption property. It can effectively absorb vibration, such as the machine bed body made of gray cast iron, can reduce the vibration in the process of work, so as to improve the processing accuracy.
Third, strong wear resistance. Grey cast iron contains graphite, graphite has lubrication effect, can be used to make piston ring, brake drum and other parts that need wear resistance.
Fourth, the cutting and processing performance is good. Because of the existence of graphite makes the gray cast iron in the cutting processing, the cutting chip is easy to break, the wear of the tool is small, so it is relatively easy to process into a variety of parts
