目前许多企业采用ＣＯ２水玻璃砂工艺，但这一工艺用得好的企业并不多。一般多为操作者自己掌握吹气压力、时间。但一个好的ＣＯ２吹气工艺必须对吹ＣＯ２气体的温度、压力、流量和时间等工艺参数进行严格的控制，只有这样才能取得满意的效果。ＣＯ２脉冲供气系统简图　　笔 At present, many enterprises use CO2 water glass sand process, but this process is not well used enterprises. Mostly for the operator to grasp the inflatable pressure, time. However, a good CO2 blowing process must strictly control the process parameters such as temperature, pressure, flow rate and time of blowing CO2 gas, so as to obtain satisfactory results. CO2 pulse gas supply system diagram pen