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Formula of light castables made of fused silica hollow spheres

A lightweight castable, fused silica technology, which is applied in the formulation field of fused silica hollow ball lightweight castables, can solve the problems of no patents and document reports, and achieve good application prospects, good heat insulation effect, and resistance to rapid cooling and rapid heating good sex effect

Active Publication Date: 2012-10-03
洛阳北苑新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Fused silica hollow sphere lightweight castable, as a light heat insulation product, is made of fused silica hollow spheres, and there is no patent or document report yet

Method used

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  • Formula of light castables made of fused silica hollow spheres
  • Formula of light castables made of fused silica hollow spheres

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Embodiment Construction

[0028] The proportion of a fused silica hollow sphere castable is shown in Table 1, and the main physical and chemical indicators of the prepared fused silica hollow sphere lightweight castable are shown in Table 2.

[0029] Table 1 Proportion of lightweight castables for fused silica hollow spheres

[0030]

[0031] Table 2 Physical and chemical properties of fused silica hollow sphere lightweight castables

[0032]

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Abstract

The invention discloses a formula of light castables made of fused silica hollow spheres. The formula uses the fused silica hollow spheres as aggregates and comprises, by mass, 60-68% of the fused silica hollow spheres, 30-35% of fused silica fine powder, 2-5% of silica micro powder, 0-5% of cement, sodium tripolyphosphate and binding agents, wherein the sodium tripolyphosphate and the binding agents occupy 0-0.2% and 8-12% of the total weight of the fused silica hollow spheres, the fused silica fine powder, the silica micro powder and the cement respectively. The light castables made of the fused silica hollow spheres has the advantages of low volume density, high resistance to thermal shock, high heat insulation performance and chemical stability.

Description

[0001] technical field [0002] The invention relates to the technical field of lightweight fused silica products, in particular to a formulation of a lightweight castable for fused silica hollow spheres. [0003] Background technique [0004] Compared with other refractory insulation materials, fused silica materials, such as SiO 2 The glass ceramics have two remarkable features: 1) The thermal expansion coefficient is very low, its thermal expansion coefficient is only 0.54×10 -6 / °C; 2), the thermal conductivity is very low, and its thermal conductivity is only 2.1W / m·K. Therefore, the fused silica material not only has very good resistance to rapid cooling and heat, but also has very good heat insulation performance. If the fused silica material is processed into a lightweight thermal insulation product, the thermal insulation effect of the lightweight thermal insulation product is unmatched by other refractory lightweight thermal insulation products. [0005] The fu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26C04B28/24C04B28/06
Inventor 张拯雷复兴孙学义刘广彬
Owner 洛阳北苑新材料技术有限公司
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