Casting product heat preservation method and heat preservation device

Abstract

The invention discloses a casting product heat preservation method and a heat preservation device. The casting product heat preservation method comprises the following steps that a heat preservation body is arranged, a mounting groove is formed in the top face of the heat preservation body; a refractory body is placed in the mounting groove, the heat conductivity coefficient of the refractory bodyis larger than the heat conductivity coefficient of the heat preservation body; a workpiece after casting is placed on the heat preservation body, the middle of the bottom face of the workpiece is arranged opposite to the refractory body; and a box body surrounding the heat preservation body and the workpiece is arranged, the box body is filled with a medium, and the medium is a heat preservationmaterial. According to the casting product heat preservation method, the heat conductivity coefficient of the refractory body is larger than the heat conductivity coefficient of the heat preservationbody, compared with the outer edge part of the bottom face of the workpiece, the middle of the bottom face of the workpiece can conduct heat more rapidly, but the outer edge part of the bottom face of the workpiece can perform heat conduction and heat dissipation through a plurality of side faces of the workpiece, and the temperature difference between the middle part of the bottom surface of theworkpiece and other parts is not too large, so that the defects of cracks and the like of the workpiece caused by large temperature difference is better prevented.

Description

Technical field [0001] The invention relates to the technical field of refractory material processing, in particular to a heat preservation method and a heat preservation device for castings. Background technique [0002] Refractory bricks have strong high temperature resistance and can be used in high temperature environments such as furnaces. Among them, the corundum bricks are made by casting, and the corundum bricks need to be cooled after casting. However, in the traditional process, the corundum bricks are prone to defects such as cracks on the bottom surface when the temperature is lowered, which causes the yield of the product to decrease. Summary of the invention [0003] Based on this, the present invention overcomes the defects of the prior art and provides a heat preservation method and a heat preservation device for castings that can prevent cracks. [0004] The technical scheme is as follows: [0005] A method for heat preservation of castings includes the following st...

AI Technical Summary

Problems solved by technology

Among them, corundum bricks are made by casting, and the corundum bricks need to be cooled after casting. However, in the traditional process, corundum bricks are prone to defects such as cracks on the bottom surface when cooling down, resulting in a decline in the yield of products.

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