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型砂退让性的测试方法研究
引用本文:饶磊,危仁杰. 型砂退让性的测试方法研究[J]. 铸造技术, 2004, 25(4): 242-243
作者姓名:饶磊  危仁杰
作者单位:南昌大学机电工程学院,江西,南昌,330029
摘    要:介绍一种通过测量铸件凝固收缩应力来表示型砂退让性的方法.利用模/数转换器和微机检测手段对多种常用的造型材料进行退让性检测,实时反映浇注后型砂的退让性变化情况, 具有较好的实用价值.

关 键 词:型砂退让性  测试装置  热裂
文章编号:1000-8365(2004)04-0242-02
修稿时间:2003-12-09

Study on the Testing Method of Molding Sand''''s Deformability
RAO Lei,WEI Ren-jie. Study on the Testing Method of Molding Sand''''s Deformability[J]. Foundry Technology, 2004, 25(4): 242-243
Authors:RAO Lei  WEI Ren-jie
Abstract:A method has been introduced, which can describe the molding sand's deformability by measuring castings' solidification and shrinkage stress. Many usual molding materials' deformability has been tested by some modern testing means, such as the A/D transform card and computer technology. It can describe the changes of the molding sand's deformability after pouring in real time, and good practical value will be got through the method.
Keywords:Deformability of molding sand  Testing equipment  Hot tear
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