根据芯盒不同的工艺要求，有两种工作方式可供选择：①不加压缩空气，只靠磨液泵供给磨液，通过喷嘴加速射向被清洗铸造模具。适用于定期对芯盒进行一般性清洗保养。②磨液系统和压缩空气系统同时启动，向喷枪同时提供磨液和压缩空气，使其在喷枪内混合后，经喷嘴向铸造模具表面高速喷射气、磨液流。由于有气、泵兼施的工作方式，使得喷出的气、磨液流具有更大压力，被载液包裹着的磨液质点动能加大，有效提高了芯盒的清洗能力(主要适用于芯盒表面树脂结垢的清洗)。

According to the different process requirements of the core box, there are two kinds of working methods to choose: (1) without compressed air, only the grinding liquid is supplied by the grinding pump, and the nozzle is accelerated through the nozzle to the washed mold. It is suitable for regular cleaning and maintenance of core boxes. At the same time, the grinding fluid system and the compressed air system start at the same time, providing the abrasive and compressed air to the spray gun at the same time, making it mixed in the spray gun and spraying gas and grinding fluid through the nozzle to the mold surface at high speed. Because of the working mode of gas and pump, the air and the grinding fluid have greater pressure, and the kinetic energy of the grinding fluid is increased, and the cleaning ability of the core box is improved (mainly for the cleaning of the resin fouling on the surface of the core box).