Heat-resistant steel casting deformation is a common casting defects, some of the reasons for deformation of heat resistant steel castings, the main reason that induces generally have a few kinds: 1. The heat-resistant steel casting casting process is not appropriate (2) the structure design of heat resistant steel castings is not reasonable. Deformation of heat resistant steel castings, size and shape are changing. Deformation of heat resistant steel castings can be at room temperature or heating conditions by mechanical or manual method to correct, according to the different heating method for both cold and hot state corrected correction. Hot correction is suitable for low plasticity, high strength, have difficulty in cold correction or correction of thick large deformation heat resistant steel castings without large casting equipment. Cold straightening temperature correction, applicable to simple shape, small good plastic material and wall thickness of heat resistant steel castings.
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