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High temperature resistant thermal insulating refractory mortar material

A technology of refractory mud and high temperature resistance, which is applied in the field of refractory materials, can solve the problems of low breaking strength and non-bonding, and achieve the effects of improving heat insulation performance, good strength, and improving three-dimensional strength

Inactive Publication Date: 2019-05-21
JIANGSU YUEZHAN NEW MATERIALS
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of low fracture strength and non-bonding of the existing refractory mud during actual high-temperature use, the present invention provides a high-temperature-resistant and heat-insulating refractory mud with better heat-insulating performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The high temperature resistant heat insulation refractory mud is made of the following raw materials in weight percentage: 60% Al2O3 powder, 15% SiO2 powder, 23% 325 mesh bentonite, 0.05% graphite, 0.05% phenolic resin powder; 1.4% Aluminate cement, 0.5% citric acid.

Embodiment 2

[0014] The high temperature resistant heat insulation refractory mud is made of the following raw materials by weight percentage: 65% Al2O3 powder, 20% SiO2 powder, 12% 325 mesh bentonite, 0.09% graphite, 0.03% phenolic resin powder; 2.78% Aluminate cement, 0.1% citric acid.

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Abstract

The invention discloses a high temperature resistant thermal insulating refractory mortar material which is prepared from the following raw materials in percentage by weight: 60-70% of an Al2O3 powder, 15-20% of a SiO2 powder, 10-25% of bentonite of 325 meshes, 0.05-0.09% of graphite, 0.03-0.05% of a phenolic resin powder, 2-5% of aluminate cement and 0.1-0.5% of citric acid. The aluminate cementhas an effect of a coagulant, so that the material has high strength; moreover, due to the adoption of the graphite, the three-dimensional strength of a generated material is improved, and a tight networked staggered structure is formed; due to the adoption of the phenolic resin powder, the adhesion strength of refractory mortar can be kept at a high temperature, and the medium / high temperature adhesion strength of the mortar can be improved; due to the adoption of the bentonite and the citric acid as a foaming agent, the thermal insulation property of the product is improved.

Description

technical field [0001] The invention relates to the technical field of refractory materials, in particular to a refractory material suitable for use in ladles, coke ovens, glass kilns and other fields that require refractory, and has the characteristics of high temperature resistance, good heat insulation, high strength, and high temperature fracture prevention. Background technique [0002] Refractory mortar (refractory mortar) is an unshaped refractory material used for refractory masonry joints, also known as joint materials. According to the setting and hardening characteristics of the binder, refractory mud can be divided into hydraulic, thermal and air-hardening refractory mud; hydraulic refractory mud uses cement as the binder and can be used at room temperature or where it may be in frequent contact with water or water vapor. Thermosetting refractory mud is usually made of thermosetting binders such as phosphoric acid or phosphate. After hardening, this kind of mud ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/101C04B35/63C04B35/634C04B38/02
Inventor 李足年
Owner JIANGSU YUEZHAN NEW MATERIALS
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