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。