Production of refractory moldings comprises uniaxial pressing, cold isostatic pressing or extrusion of mixture of loamy sand and carbon carrier which can subsequently be graphitized, moldings being used as produced or after heat treatment

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This patent describes a method for making refractory moldings, which are heat-resistant shaped articles, by pressing or extruding a mixture of loamy sand and a carbon carrier. The carbon carrier can be turned into graphite through heat treatment if desired. The process can use uniaxial pressing, cold isostatic pressing, or extrusion, and the resulting moldings can be utilized as they are or after being heated above 600°C.

Use CasesContent extracted from patent full text and abstract with AI.

• Manufacture of components for high-temperature industrial furnaces
• Production of refractory bricks and linings for steel and glass industries
• Creation of heat-resistant parts for kilns and foundries
• Production of molded graphite parts for electrical or metallurgical applications
• Fabrication of shaped parts for chemical processing equipment requiring heat resistance

BenefitsContent extracted from patent full text and abstract with AI.

• Improved versatility in forming heat-resistant shapes using different pressing methods
• Ability to use products as-molded or after graphitization, increasing flexibility
• Potential for enhanced durability and thermal stability due to graphite content
• Suitable for a variety of high-temperature industrial environments
• Potential cost and process efficiencies by combining different molding and treatment steps

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Patent Abstract

Production of refractory moldings comprises uniaxial pressing, cold isostatic pressing or extrusion of a mixture of loamy sand, a carbon carrier which can subsequently be graphitized and optionally pressing additives. A mixture of the pressing methods may be used. The moldings are used as produced or after heat treatment above 600[deg] C.