使用具有制造简单、测试方便的热镍棒激热测试手段,以及ZL3—404函数记录仪,研究高坭量型砂抗夹砂性能与陶土、煤粉、锯末、紧实硬度、烧结粘土、活化处理以及湿压强度等诸因素之间的关系;并通过试验及几十个厂的型砂性能调查对比,明确指出,高坭量型砂是一种高抗夹砂性能的型砂;陶土和煤粉具有很好的抗夹砂作用。 Using the hot nickel rod thermal test method with simple manufacture and convenient testing, and the ZL3-404 function logger, the effect of the kaolin sand with sand, coal, sawdust, compactness, sintered clay, activation treatment As well as the relationship between the wet strength and other factors; and through the test and dozens of factory sand performance survey comparison, clearly pointed out that the high-volume sand is a high anti-sand sand sand performance; clay and pulverized coal has a very Good anti-sand effect.