冷芯盒射芯機(jī)工藝介紹：

Technology introduction of cold core box ejection machine:

冷芯盒射芯機(jī)是通過(guò)壓縮空氣的驟然膨脹將型砂均勻的射入芯盒緊實(shí)（所需型砂在射砂前通過(guò)混砂機(jī)與所需組分樹脂按比例充分混合），然后通過(guò)吹氣裝置向芯盒內(nèi)吹入三乙胺氣體使其固化制成砂型的造型機(jī)械。通過(guò)該工藝造型、制芯無(wú)需加熱，固化速度快，所得鑄件表面光潔，精度高，該工藝代表著當(dāng)今制芯技術(shù)的主流，在西方發(fā)達(dá)國(guó)家已有近50年的成熟使用歷史。據(jù)稱在全世界范圍內(nèi)約百分之六十以上的砂芯是采用冷芯盒工藝制成。國(guó)內(nèi)自20世紀(jì)70年代引進(jìn)并采用冷芯盒工藝，至90年代，隨著冷芯盒制芯設(shè)備國(guó)產(chǎn)化水平的提高以及所需鑄造材料生產(chǎn)水平逐步的成熟、提升，冷芯盒制芯工藝開始迅速發(fā)展，被廣大用戶熟知并接受。目前已被廣泛用于汽車、零部件、發(fā)動(dòng)機(jī)、各種閥門、電力配件等行業(yè)的鑄造車間。

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.