Analysis on Preventing Ductile Iron in Lost Foam Casting from Deformation
It is typical to apply the lost foam casting to the production of ductile iron pipes. In the process, the possible deformation of foam pattern easily results in the dimension error and deformation of the castings. Based on the production practice, this paper discusses how to prevent the foam pattern and castings from deforming,and the effective measures are how to control the process of mold assembling and technology, and any possible assistant methods.