热芯盒制芯是六十年代发展起来的一种新工艺。由于这种方法具有生产速度快、芯子强度高、尺寸准确等优点,因而发展很快,尤其是在汽车、拖拉机等大量流水生产中,应用日益广泛。我厂生产汽车发动机铸铁件,全部芯子采用壳芯和热芯盒制芯工艺。其中每辆份铸件采用热芯盒芯子近200公斤,占芯子总重的80％,它们包括缸体与缸盖水套芯之类的复杂而单 Hot core box core is developed in the sixties a new technology. Because of this method has the advantages of fast production, high core strength, the size is accurate, and thus developed rapidly, especially in the automotive, tractors and other large 流水生产, the increasingly widespread use. I plant the production of automotive engine cast iron parts, all the core shell core and core box core making process. Each of which uses nearly 200 kg of hot-box core and 80% of the total weight of the core, including the complex single