呋喃树脂砂铸钢件粘砂缺陷的防止措施

Measures to Prevent Burning-on and Metal Penetration of Steel Castings

分析了大中型呋喃树脂砂铸钢件粘砂缺陷的形成原因,介绍了为防止粘砂缺陷形成,在树脂砂原材料的选择、型砂制备工艺参数控制、造型操作、涂料涂刷、浇注温度等方面应采取的措施以及要重视的问题。

The reasons causing burning-on and metal penetration defect of medium-large furan resin sand steel castings wereanalyzed. An introduction was made to the measures to be taken and problems to be noticed in order to prevent burning-onand metal penetration defects in the aspects of raw materials choice of furan resin sand, control of molding sand preparingprocess parameters, molding operation, coating brushing, pouring temperature and so on.