As the purpose of precision castings, heat treatment is very large, the basic can be divided into two categories, the first is the organization structure will not change by heat treatment or should not change, and the second is the basic organizational structure changes. The first heat treatment procedure is mainly used to eliminate internal stress, which is caused by the cooling conditions and conditions during the stainless steel casting process. Organization, strength and other mechanical properties, not due to heat treatment and significant changes occurred.
