Effects of Pouring Temperature on Shrinkage Porosities and Cavities of Investment Casting Stainless Steel Parts

Li Aizong

doi:10.15980/j.tzzz.2022.11.026

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Effects of Pouring Temperature on Shrinkage Porosities and Cavities of Investment Casting Stainless Steel Parts
Vol. 42, Issue 11, Pages: 1442-1443(2022)
Published： 2022 ，
DOI： 10.15980/j.tzzz.2022.11.026

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Li Aizong. Effects of Pouring Temperature on Shrinkage Porosities and Cavities of Investment Casting Stainless Steel Parts. [J]. Special Casting & Nonferrous Alloys 42(11):1442-1443(2022)
DOI：

Li Aizong. Effects of Pouring Temperature on Shrinkage Porosities and Cavities of Investment Casting Stainless Steel Parts. [J]. Special Casting & Nonferrous Alloys 42(11):1442-1443(2022) DOI： 10.15980/j.tzzz.2022.11.026.

摘要

分析了不锈钢精密件生产过程中炉前浇注温度对于铸件缩孔缺陷的影响；在利用亨金公式计算内浇道模数时，对浇注温度进行修正，得出了修正后的实际内浇道模数，修改后的模数经验证合理；确定合理的浇注温度，并总结出减少铸件缩孔和缩松缺陷的浇注温度。

Abstract

Effects of pre-furnace pouring temperature on the size and rate of shrinkage porosities and cavities during the production of investment casting stainless steel parts were analyzed. The modification of pouring temperature was added to Henkin formula to calculate the inner gate modulus

and the actual inner gate modulus was obtained

which was verified to be reasonable. Reasonable pouring temperature was determined

and the empirical data of pouring temperature for reducing shrinkage porositie and cavities were presented.