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Use method of high-temperature ceramic welding material

A technology of high-temperature ceramics and welding fillers, which is applied in the field of industrial kilns and industrial kiln repairs, can solve problems such as failures, and achieve the effects of guaranteed strength, good corrosion resistance, and good welding firmness

Active Publication Date: 2010-09-29
上海杰汇炉窑新技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the use of silicon-based high-temperature ceramic welding materials to repair the silicon refractory materials of glass kilns has become increasingly mature, but the use of zirconium-mullite-based high-temperature ceramic welding materials to repair the zirconium refractory materials of glass kilns has not been successful. report

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1 High-temperature ceramic solder filling material preparation

[0025] 8wt% fused corundum, 9wt% zirconia mullite, 11wt% mullite, 4wt% zirconia corundum, 13wt% metal aluminum powder, 10wt% fused silica, 13wt% quartz sand, 32wt% The zircon sand is mixed and stirred evenly to become a high-temperature ceramic welding material 1.

[0026] 7wt% fused corundum, 10wt% zirconia mullite, 12wt% mullite, 5wt% zirconia corundum, 10wt% metal aluminum powder, 11wt% fused silica, 12wt% quartz sand, 33wt% The zircon sand is mixed and stirred evenly to become a high-temperature ceramic welding material 2.

[0027] 8wt% fused corundum, 8wt% zirconia mullite, 10wt% mullite, 3wt% zirconia corundum, 18wt% metal aluminum powder, 9wt% fused silica, 12wt% quartz sand, 32wt% The zircon sand is mixed and stirred evenly to become a high-temperature ceramic welding material 3.

[0028] 9wt% fused corundum, 8wt% zirconium mullite, 11wt% mullite, 4wt% zirconium corundum, 13wt% metal ...

Embodiment 2

[0033] Embodiment 2 High-temperature ceramic welding material repair test

[0034] The high-temperature ceramic welding filling materials 1 to 4 prepared in Example 1 are respectively repaired to industrial furnaces and kilns with the same size of damage, and the repairing process is as follows: Spray to the damaged place of industrial kiln, adopting process parameter as shown in table 1, the fuel particle combustion of described high-temperature ceramic welding filling material in this damaged place produces high temperature, and the refractory material particle of described high-temperature ceramic welding filling material The refractory material at the damaged part is softened and melted, so that the damaged part is firmly welded together with the refractory material of the high-temperature ceramic welding material, and the purpose of repairing the kiln is achieved. After measurement, the repaired places all meet the indicators listed in Table 2:

[0035] Table 1

[0036]...

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Abstract

The invention provides a use method of a high-temperature ceramic welding material. The high-temperature ceramic welding material comprises 35-43 wt% of Al2O3, 35-45 wt% of SiO2 and 19-30 wt% of ZrO2. The high-temperature ceramic welding material is sprayed to a breakage part of an industrial stove from a welding gun under the current carrying action of combustion-supporting gas, fuel particles of the high-temperature ceramic welding material combust at the breakage part to produce high temperature so as to soften and fuse refractory material particles of the high-temperature ceramic welding material and the refractory material at the breakage part, so that the breakage part and the refractory material of the high-temperature ceramic welding material are firmly welded together so as to achieve the purpose of stove recovery. Compared with the traditional siliceous high-temperature ceramic welding material, the high-temperature ceramic welding material has better corrosion resistance, better thermal shock resistance, better thermal stability and firmer welding; the invention reduces the use cost of the industrial stove, reduces the loss caused by the breakage of the industrial stove and is suitable for large-scale popularization and application.

Description

technical field [0001] The present invention relates to the technical field of industrial kilns, more specifically, to the technical field of repairing industrial kilns, in particular to a method for using a high-temperature ceramic welding material for repairing industrial kilns. Background technique [0002] At present, various industrial furnaces play a fundamental role in industries such as steel, glass, lime, and cement. However, after various industrial furnaces have been in service for a period of time, the furnace lining made of refractory materials will be damaged to varying degrees, which directly affects the life of the furnace. In particular, the large local damage cannot be repaired by conventional methods such as masonry and spraying, which leads to the forced shutdown of the furnace and kiln, resulting in huge economic losses. [0003] The high-temperature ceramic welding repair technology has been gradually popularized and applied in various glass furnaces. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/14
Inventor 沈清文周建东
Owner 上海杰汇炉窑新技术有限公司
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