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Cast iron not only needs heat treatment, but also "precision heat treatment". Modern cast iron heat treatment has evolved from a simple stress relief method to a systematic engineering for regulating material properties. Mastering the matching relationship between cast iron phase transformation law and process window is the key technical path to achieve high-value application of castings.

Investment casting and lost foam casting have their own advantages and disadvantages, and are suitable for different application scenarios. When choosing a casting process, customers should comprehensively consider factors such as casting requirements, production costs, and manufacturing cycles to select the best casting solution.