A manufacturing process of high performance coated sand phenolic resin was introduced.
介绍了一种高性能覆膜砂用酚醛树脂的制作工艺。
2
In the program, sand and synthetic resin are mixed in the spiral feeder and extrude out to the cloth.
首先,石英砂和合成树脂在螺旋给料器中混合,再由螺旋给料器挤出落进兜砂布中。
3
The measures to prevent nitrogen blow hole caused by high nitrogen content of resinsand are: adopting low nitrogen resin, adding iron oxide into sand or coating and keeping resin from moisture.