The Ways for Increasing of Mold Shell Strength in Lost Wax Casting

Zhou LihongWan WeibinCai Yuanren

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The Ways for Increasing of Mold Shell Strength in Lost Wax Casting
Issue 3, (1999)
Published： 1999 ，
DOI：

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[1]周丽红,万卫宾,蔡元任,方亮.提高熔模铸造型壳强度的途径[J].特种铸造及有色合金,1999(03):14-17.

Zhou LihongWan WeibinCai Yuanren. The Ways for Increasing of Mold Shell Strength in Lost Wax Casting. [J]. Special Casting & Nonferrous Alloys (3).(1999)
[1]周丽红,万卫宾,蔡元任,方亮.提高熔模铸造型壳强度的途径[J].特种铸造及有色合金,1999(03):14-17. DOI：

Zhou LihongWan WeibinCai Yuanren. The Ways for Increasing of Mold Shell Strength in Lost Wax Casting. [J]. Special Casting & Nonferrous Alloys (3).(1999) DOI：

摘要

针对本厂生产存在的实际问题，提出了在以水玻璃为粘结剂的条件下，提高型壳强度的途径。结果表明：对于硅酸铝质耐火粉料，耐火粉料的矿物组成及化学成分对型壳强度起着重要作用，在Ａｌ２Ｏ３质量分数大于６５％后，随Ａｌ２Ｏ３质量分数的增加，型壳强度不但不增加反而呈现下降趋势。

Abstract

Based on the three main factors of aluminium silicate affecting mold shell strength

several different kinds of alumina refractory powders are selected to make mold shell specimens. The results show that mold shell with yangquan powders obtain higher strengths at 900 . The test also indicates that glass phase in mold shell is more favorable to increase bonded property among alumina particles in comparison with silica gel.