METHOD FOR PRODUCING MOULD AND CORE THROUGH CURING SODIUM SILICATE SAND FOR CASTING BY BLOWING

摘要

In a method for producing moulds and cores with cold box through curing sodium silicate sand for casting by blowing, a sand mixture for producing moulds and cores is filled into a forming tool by a core shooter or manually and then is shaped, and the operations of blowing, curing and stripping are carried out. Gases are sequentially blown in the order of CO₂ and compressed gas; or gases are sequentially blown in the order of compressed gas-CO₂-compressed gas.