Properties of sodium silicate bonded sand hardened by microwave heating
The sodium silicate bonded sand hardened by microwave heating has many advantages, such as low sodium silicate adding quantity, fast hardening speed, high room temperature strength, good collapsibility and certain surface stability. However, it has big moisture absorbability in the air, which would...
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doaj-8a4f0e0f92064145b05d41283152a3242020-11-24T23:32:26ZengFoundry Journal AgencyChina Foundry1672-64212009-08-0163191196Properties of sodium silicate bonded sand hardened by microwave heating Fan ZitianWang JinaZan XiaoleiThe sodium silicate bonded sand hardened by microwave heating has many advantages, such as low sodium silicate adding quantity, fast hardening speed, high room temperature strength, good collapsibility and certain surface stability. However, it has big moisture absorbability in the air, which would lead to the compression strength and the surface stability of the sand molds being sharply reduced. In this study, the moisture absorbability of the sodium silicate bonded sand hardened by microwave heating in ifferent humidity conditions and the effect factors were investigated. Meanwhile, the reasons for the big moisture absorbability of the sand were analyzed. Some measures to overcome the problems of high moisture absorbability, bad surface stability and sharply reducing strength in the air were discussed. The results of this study establish the foundation of green and clean foundry technology based on the microwave heating hardening sodium silicate sand process.http://www.foundryworld.com/uploadfile/200912130267115.pdfmicrowave heating hardeningsodium silicate bonded sandmoisture absorbability |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Fan Zitian Wang Jina Zan Xiaolei |
spellingShingle |
Fan Zitian Wang Jina Zan Xiaolei Properties of sodium silicate bonded sand hardened by microwave heating China Foundry microwave heating hardening sodium silicate bonded sand moisture absorbability |
author_facet |
Fan Zitian Wang Jina Zan Xiaolei |
author_sort |
Fan Zitian |
title |
Properties of sodium silicate bonded sand hardened by microwave heating |
title_short |
Properties of sodium silicate bonded sand hardened by microwave heating |
title_full |
Properties of sodium silicate bonded sand hardened by microwave heating |
title_fullStr |
Properties of sodium silicate bonded sand hardened by microwave heating |
title_full_unstemmed |
Properties of sodium silicate bonded sand hardened by microwave heating |
title_sort |
properties of sodium silicate bonded sand hardened by microwave heating |
publisher |
Foundry Journal Agency |
series |
China Foundry |
issn |
1672-6421 |
publishDate |
2009-08-01 |
description |
The sodium silicate bonded sand hardened by microwave heating has many advantages, such as low sodium silicate adding quantity, fast hardening speed, high room temperature strength, good collapsibility and certain surface stability. However, it has big moisture absorbability in the air, which would lead to the compression strength and the surface stability of the sand molds being sharply reduced. In this study, the moisture absorbability of the sodium silicate bonded sand hardened by microwave heating in ifferent humidity conditions and the effect factors were investigated. Meanwhile, the reasons for the big moisture absorbability of the sand were analyzed. Some measures to overcome the problems of high moisture absorbability, bad surface stability and sharply reducing strength in the air were discussed. The results of this study establish the foundation of green and clean foundry technology based on the microwave heating hardening sodium silicate sand process. |
topic |
microwave heating hardening sodium silicate bonded sand moisture absorbability |
url |
http://www.foundryworld.com/uploadfile/200912130267115.pdf |
work_keys_str_mv |
AT fanzitian propertiesofsodiumsilicatebondedsandhardenedbymicrowaveheating AT wangjina propertiesofsodiumsilicatebondedsandhardenedbymicrowaveheating AT zanxiaolei propertiesofsodiumsilicatebondedsandhardenedbymicrowaveheating |
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