Machine tool selection and matching of casting materials
Release time：04-07
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View volume： 58
Use gray cast iron machine tool castings do:
1, grey iron casting machine casting cost is low, gray cast iron has good casting performance, easy to cast out all kinds of complicated structure form;
2, cast iron material has good shock absorption performance, more conducive to avoid shaking when machine is running, lower noise.
3, although compared with steel cast iron tensile strength is low, but the compressive strength and steel close, most of the machine tool bed request is not high, the tensile strength can meet the performance requirements;
4, grey iron casting material of machine tool bed casting has good lubrication performance, because the grey iron atom structure of microporous can accommodate more lubricating oil, and at the same time containing carbon have self lubricating effect.
5, cast iron has better corrosion resistance than steel, easy to maintain the accuracy of machine tool guideway. Machine tool lathe bed casting has good dimensional stability, should not be used for machine tool lathe bed deformation, is advantageous to the long-term accuracy of machine tools.
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