热芯盒使用的呋喃树脂砂容易粘砂斗,得经常用锤子敲,既影响生产效率,也容易把砂斗敲坏。后来我们采用在砂斗壁上喷刷酒精的办法,效果较好,粘砂现象明显减轻,砂斗只要一两周清理一次就行了。用这个办法也解决了射芯机射砂筒粘砂的问题。 Fuse sand used in hot core box easy sticky sand bucket, often with a hammer knock, both affect the production efficiency, but also easy to knock the sand bucket bad. Later, we used the method of spraying alcohol on the wall of the sand hopper, the effect is better, the sticky sand phenomenon is obviously relieved, and the sand bucket can be cleaned once or twice a week. This solution also solves the problem of shoot-core shoot sticking sticky sand.