冷芯盒射芯機采用的是氣體硬化法，用樹脂射砂后，通以氣體使砂芯硬化。射芯機上另裝有通氣板，射砂慢盒后，將芯盒工作臺稍稍下降一段距離，在射頭與芯盒之間插入通氣板，再將芯盒與通氣板壓緊，這時由通氣板引入硬化氣體，從芯盒頂上的射孔引入砂芯，并穿過砂芯經(jīng)下面的排氣孔排出，經(jīng)過短時間通氣使砂芯硬化，砂芯硬化后，再通過通氣板通入空氣，使空氣穿過已硬化的砂芯，將殘留在砂芯中的有毒的硬化氣體沖洗除去，殘氣通過排氣孔排入專門的凈化裝置。

The cold core box core shooting machine adopts gas hardening method. After sand spraying with resin, the sand core is hardened by gas. The core box is fitted with a ventilation plate, and the core box work table is slightly reduced by a certain distance. The core box and the core box are inserted into the core box, then the core box and the ventilation plate are pressed. The sclerosing plate is introduced into the sclerosing gas, the perforation from the top of the core box is introduced into the core, and the sand core is discharged through the exhaust hole below. The sand core is hardened by a short time ventilation. After the sand core is hardened, the air passes through the ventilated plate, and the air passes through the hardened sand core to remove the toxic hardened gas remaining in the sand core, and the residual gas is discharged into a special purification device through the vent hole.