Form and dimension may also be achieved by a number of alternative processes such as hot or cold extrusion, sand casting, die casting, and precision casting.
形式和尺寸也可以通过其它一些可选工艺来达到，比如热挤出或冷挤出加工，沙模铸造，拉模铸造，或精密铸造。
This paper introduces the method of making sand core, explains the influence of the head design of sand core, assembly of sand core and other factors on the dimension precision of casting.
介绍了制芯方法，阐述了芯头设计、砂芯的组装及其它因素对铸件尺寸精度的影响。
Besides, it also can be used as the foundry sand in precision casting and the raw materials of ceramic and resin bonded abrasives as well as coated abrasives.
精密铸造用型砂；在磨具中经常用作陶瓷、树脂固结磨具和涂附磨具的原料。
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