Foundry sands and sand mixtures for casting - method of testing 铸造用原砂及混合料试验方法
The ash turns from black to grey and is a silicate with similar characteristics as foundry sand 灰烬从黑色变灰色,并且是一种与铸造用砂特征相似的硅酸盐。
For foundry sand from a famous domestic area , the curve of thermal expansivity with the temperature was described 本文最后给出了利用本装置测得的国内某著名铸造用原砂的热膨胀温度曲线。
Foundry sand adhesives serial bentonite is standard by jb t9227 1999 issued by national industry department . it was apply to settle the problem of high pressure model production line , sand mold collapse 铸造型砂粘结合用膨润土产品标准参照机械工业部颁标jb t9227 - 1999 .本系列产品适用于高压造型生产线,砂型塌方等问题。
Abstract : a self - designed conensate treating system is used to treat thewaste gas from a foundry sand core according to an analysis of its emission features , an obvious treating effect is obrained , which reaches the national emission standard 文摘:通过对铸造泥芯废气排放特性的分析,采用自行设计的冷凝水洗处理系统,废气治理效果明显,达到了国家排放标准。