Analysis on the Characteristics of “Molding Elements” of New Environment-Friendly Modeling Molding Material

Author of the article:WANG Wenzhong1 , LI Qingsong2 , WANG Yidong2

Author's Workplace：1. China Sinosteel Casting and Forging Center, Jinan 250001, China; 2. Shandong Xuguang Derui High-tech Materials Co., Ltd., Dezhou 251500, China

Key Words：molding elements; environmental protection, sand inclusion; common clay sand; harmful gas emission

Abstract：Because of its simple production mode, low cost and high efficiency, the production share of cast iron reaches about 80%. According to statistics, about 80% of casting defects are due to molding sand factors. With the promulgation of environmental laws and regulations and the wide application of automation and high density molding lines, higher requirements have been put forward for the comprehensive performance of molding materials. Clay sand containing pulverized coal can not meet the demand of cast iron production under the new situation because of its harmful discharge exceeding standard and environmental pollution. The enterprise urgently needs to break the routine and find a new environment-friendly molding material which can replace pulverized coal sand, in order to maximize the improvement of the production technology level and product quality of cast iron in China. As a new environment-friendly molding material, ‘cast element’ has excellent comprehensive properties and has a broad application prospect in the field of cast iron production