When the moulding technological test is carried out on the air impulse test moulding machine, the mouldingsand employed is the sand used by Nanchang Diesel Factory for high-pressure moulding.
利用气流冲击试验机进行造型工艺试验，使用的型砂为南昌柴油机厂高压造型用砂。
2
When using in mouldingsand, it can promote oriental solidification of castings and prevent burn-on and sand inclusion of castings, and improve roughness of castings.
在铸造生产中可以促进铸件的方向性凝固，防止粘砂、夹砂等铸造缺陷和改善铸件表面粗糙度。
3
Manual mouldmakers make and repair sand moulds using patterns, moulding boxes, sand and hand tools following bench, floor or pit moulding methods;