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Title: Performance of Refractory Concretes in Aluminum Heating and Holding Operations

Author(s): Richard G. LaBar

Publication: Symposium Paper

Volume: 74


Appears on pages(s): 99-116

Keywords: alkalies; aluminum; chemical attack; chlorides; corrosion resistance; erosion; failure mechanisms; furnaces; high temperature;" linings; manufacturing; performance; refractory concretes; shear stress; thermal shock ; thermal stresses.

DOI: 10.14359/6396

Date: 8/1/1982

The purpose of this paper is to provide a description of performance criteria for refractory concretes, or castables, in the melting, holding, and transfer of aluminum alloys in ingot plants. Refractory concretes in these applications have three mechanisms of failure which are attributed to anomalies in refractory installation, thermomechanical stability and chemical stability. Chemical stability indicates the refractory concrete's resistance to corrosive effects of chlorine gas, molten metal, and alkali vapors.


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