我厂在去年九月份曾经制造了一套简易水力清砂设备,经使用证明,这种清砂方法有很多优点,肯定是成功的。但因我们缺乏经验,在这套设备中也存在一些缺点,特别是目前在我厂新铸造车间已投入生产,铸造能力大大提高,铸件的清砂工作大量增加的情况下,更加不能适应发展的需要。为此,我 In September last year, our factory had manufactured a set of simple hydraulic sand-removing equipment. It has been proved that this sand-removing method has many advantages and is certainly successful. However, due to our lack of experience, there are also some shortcomings in this set of equipment, especially now that the new casting workshop of our factory has been put into production, the casting capacity has been greatly improved, and the sand-removing work for castings has been greatly increased, and it is even more unable to adapt to the development. need. For this, I