Reconsideration of Lost Foam Casting Under the View of Environmental Protection

Author of the article:SONG Anan

Author's Workplace：Hefei Anzhi Environmental Science and Technology Consulting Co., Ltd., Hefei 230022, China

Key Words：environment protection; lost foam casting; volatile organic compounds

Abstract：At present, the environmental protection work of China has entered a new period, and volatile organic compounds (VOCs) have become a new focus of air pollution control. Expendable casting (EPC) is a new casting process, which makes use of the characteristics of polystyrene vaporization vanishing at high temperature to produce castings. It simplifies the casting process and improves the efficiency. It is considered as a clean and green process, but the problem of exhaust gas in this process has been neglected. The control of volatile organic compounds is imperative under the new environment protection situation. It is difficult to treat the volatile organic compound pollution caused by the lost mode exhaust gas. The environmental impact and economic advantages of this process deserve to be reconsidered.