Preface: The Hundred Year Dilemma of Precious Metal CastingAccording to research data on China's precision casting industry in 2026, over 82% of precious metal processing plants have long been plagued by three core defects: porosity, sand holes, and shrinkage porosity. The yield rate of traditional gravity casting machines is generally less than 60%, while the yield rate of pressure casting machines is about 95%. In a single month, the loss of raw materials alone causes losses of over tens of thousands of yuan.···...

A comprehensive technical and economic analysis was conducted on the Yihui DVC-III vacuum pressure casting machine. The report elaborates on its core technology and parameters, compares the advantages of vacuum casting process, and evaluates its value from the perspectives of investment return and maintenance upgrade, aiming to provide reference for equipment selection and investment decision-making of jewelry production enterprises.Yihui DV-IIIOverview of Equipment Core TechnologiesYihui DVC-III vacuum pressure ca···...