| 造型材料表观热物性的测定 |
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| 引用本文： | 厉松春,周建国,于敞,姚忻,徐昭华,吴学明. 造型材料表观热物性的测定[J]. 现代铸铁, 1988, 0(3) |
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| 作者姓名： | 厉松春 周建国 于敞 姚忻 徐昭华 吴学明 |
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| 作者单位： | 上海交通大学(厉松春，周建国，于敞，姚忻，徐昭华)，上海交通大学(吴学明) |
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| 摘 要： | 为精确地模拟铸件的凝固过程和进行铸造工艺的计算机辅助设计,采用浇注法对粘土砂和水玻璃砂的表观热物性进行了研究。实验表明,型砂的表观导热系数、表观导温系数及表观蓄热系数均随着原砂粒度的增大而增大,也随着粘结剂的含量(陶土或水玻璃)增加而增大,但达到一定程度后则趋于恒定。
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| 关 键 词： | 砂型 热特性 计算机辅助设计 |
The Determination of Apparent Heat Physical Characteristics of Moulding Materials |
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| Shanghai Jiaotong University Li Songchun Zhou Jingguo Yu Chang Yao Xin Xu Zhaohua Wu Xueming. The Determination of Apparent Heat Physical Characteristics of Moulding Materials[J]. Modern Cast Iron, 1988, 0(3) |
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| Authors: | Shanghai Jiaotong University Li Songchun Zhou Jingguo Yu Chang Yao Xin Xu Zhaohua Wu Xueming |
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| Affiliation: | Shanghai Jiaotong University Li Songchun Zhou Jingguo Yu Chang Yao Xin Xu Zhaohua Wu Xueming |
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| Abstract: | To simulate the solidification process of castings precisely and make CAD for casting technique, pouring method was used for researching the apparent heat physical characteristics of clay and sodium silicate sands. It was shown that the apparent coefficient of heat conductivity, the apparent heat diffusivity and the thermal diffusivity of molding sands were all increased as the particle size of sand increased and the case was similar to the bond content (clay and sodium silicate), but its values tended towards constant after a certain bond content is reached. |
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| Keywords: | Mould sand Heat characteristics CAD |
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