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 Machine Tool Castings

Main material is gray cast iron and nodular cast iron.

Under strict control of carbon equivalent, phosphorus content, magnesia and rare earth in our smelting, the material performance can absolutely limit any shrinkage cavity and shrinkage porosity. Pouring temperature within at 1300~1350°C is in favor of iron feeding; Reasonable layout of deadhead & chiller guarantee consecutive solidification.

There is a procedure for casting stress release completely through low temperature annealing; it keeps the bed structure steady and stable permanently, there will be none deformation and gash in machining, assembling and operating.