冷芯盒射芯机工艺介绍：

Technology introduction of cold core box ejection machine:

冷芯盒射芯机是通过压缩空气的骤然膨胀将型砂均匀的射入芯盒紧实（所需型砂在射砂前通过混砂机与所需组分树脂按比例充分混合），然后通过吹气装置向芯盒内吹入三乙胺气体使其固化制成砂型的造型机械。通过该工艺造型、制芯无需加热，固化速度快，所得铸件表面光洁，精度高，该工艺代表着当今制芯技术的主流，在西方发达国家已有近50年的成熟使用历史。据称在全世界范围内约百分之六十以上的砂芯是采用冷芯盒工艺制成。国内自20世纪70年代引进并采用冷芯盒工艺，至90年代，随着冷芯盒制芯设备国产化水平的提高以及所需铸造材料生产水平逐步的成熟、提升，冷芯盒制芯工艺开始迅速发展，被广大用户熟知并接受。目前已被广泛用于汽车、零部件、发动机、各种阀门、电力配件等行业的铸造车间。

The cold core box coring machine is to compress the molding sand into the core box by the sudden expansion of the compressed air (the required sand is fully mixed in proportion to the required component resin before sand shooting), and then the three ethylamine gas is blown into the core box by the blowing device to make it solidified into sand molding machine. Through this process, the molding, the core without heating, the curing speed is fast, the casting surface is bright and clean and the precision is high. This process represents the mainstream of the core technology, and has been used in the developed countries in the West for nearly 50 years. It is said that around sixty percent of the sand cores in the world are made by cold box process. In 1970s, the cold core box technology was introduced and adopted in China. By 90s, with the improvement of the domestic level of the core making equipment and the gradual maturity and promotion of the production level of the foundry material, the cold core box core processing technology began to develop rapidly and was well known and accepted by the vast number of users. At present, it has been widely used in foundries of automobiles, parts, engines, valves, power fittings and other industries.