Investigation into thermalphysic properties and thermal stability of shell molds based on quartz sand and ash of thermoelectropower stations for a foundry using dispensable patterns

被引：2

作者：

Chernov, V. P. ^{[1
]}

Astapov, E. N. ^{[1
]}

Safonova, E. A. ^{[1
]}

机构：

[1] Nosov Magnitogorsk State Tech Univ, Magnitogorsk 455000, Russia

来源：

RUSSIAN JOURNAL OF NON-FERROUS METALS | 2011年 / 52卷 / 05期

关键词：

thermal conductivity; thermal stability; shell; dusting; linear expansion; quartz sand; ash from thermoelectropower stations; foundry using dispensable patterns;

D O I：

10.3103/S1067821211050038

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The quartz mold, which has low thermalphysic and thermal properties, is the main source of waste in a foundry using dispensable patterns. Therefore, it is necessary to fabricate shell molds from an alternative material with smaller linear expansion and higher thermal conductivity. An analysis of the thermalphysic properties and thermal stability of the molds shows that ceramic shells in which the ash from thermoelectropower stations is used as the dusting are most thermally stable, and they can be recommended for pouring without a support material. Since ash from thermoelectropower stations is production waste, this can significantly affect the cost of shell molds, which is especially topical due to the ongoing economic crisis.

引用

页码：437 / 441

页数：5