The cooling rate is faster in chromite sand mold, but also causes more porosity in castings. 铬砂制作的砂模可让铸件有较快的冷却速率,但也产生较多的微孔隙。
Alkaline resin chromite sand is used to produce qualified impeller casting. 选用碱性树脂铬矿砂生产出合格的叶轮。
Study and Application on No Bake Phosphate High Chromite-Corundum Sand 高铬刚玉磷酸盐自硬砂的研究和应用
A high neutralization degree compounded aluminum phosphate binder is synthesized. No bake phosphate mixture, composed of the binder, high chromite corundum sand and fused magnesia powder, has good room and high temperature strength, moderate retained strength and low hydroscopicity. 合成了高中和度复合铝磷酸盐粘结剂,用它与高铬刚玉砂、电熔镁砂粉配制的磷酸盐自硬砂,具有较好的常温强度、高温强度,适中的残留强度和低吸湿性。