树脂砂高效制芯是进行大批量生产铸件的先进制芯工艺 ,在汽车、柴油机等行业得到广泛的应用。按硬化条件分类 ,主要有热硬法和冷硬法两种。热硬法又分为热芯盒和覆膜砂壳芯两种工艺 ,目前我国约有 50 0家企业采用热硬法 ,占高效制芯工艺的 90 %。冷硬法 (即冷芯盒法 )与热硬法 Efficient system of resin sand core is a high-volume production of advanced core making process, in the automotive, diesel engines and other industries have been widely used. Classified by the curing conditions, there are two kinds of hot and cold and chilled law. Hot and hard method is divided into two kinds of hot core box and coated sand shell core technology, at present, about 50 companies in China using hot and hard method, accounting for 90% of the core efficiency of the system. Chill method (ie, cold-box method) and the hot-hard method