The AUTOMATIC SAND-COATED METAL MOULD PRODUCTION LINE adopts the advanced sand-coated metal mold producing process, which can significantly improve the mechanical properties of castings, improve the appearance quality of castings, reduce the machining allowance of castings & the labor intensity & the number of workers, minimize the production of safety hazards.
Written by LI Ju-cang, ZHAO Ai-min, WANG Li-na (University of Science and Technology Beijing, Beijing 100083, China) Abstract： The effects of heat treatment on the hardness, impact toughness, manufactured process, and microstructure used different heat treatment technology of dia50 mm Cr26 high chromium cast iron grinding ball have been studied. The results show that hardness of […]
ABSTRACT: The heat treatment process of high chromium grinding ball produced by sand coated iron mould casting process was researched. Shrinkage and porosity defects have not been discovered after cutting along the diameter of grinding ball. The grinding ball in cast state has poor mechanical properties. Mechanical properties of grinding ball significantly increase after heat treatment After heat […]
About hardness, carbides and wear resistance? 1. Hardness directly reflects the wear resistance of the product, the higher the wear resistance, the higher the hardness, with the Rockwell hardness “HRC“.
Chemical Heat Treatment-a heat treatment process in which a metal or alloy is placed in an active medium at a certain temperature so that one or more elements penetrate into its surface to change its chemical composition, structure, and properties. Common Chemical Heat Treatment Process: carburizing, nitriding, carbonitriding, aluminizing, boronizing and so on. The aim […]