Aluminum-silicon castable prepared by adjusting aggregate ratio and preparation method of aluminum-silicon castable

A castable, aluminum-silicon-based technology, applied in the field of aluminum-silicon castables, can solve the problems of high cost, large amount, and unfavorable use.

Pending Publication Date: 2021-07-30
泰兴市恒信特种耐火材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing aluminum-silicon-based castables have certain disadvantages in use. Traditional aluminum-silicon-based castables usually require a large amount of bauxite aggregate, which is costly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An aluminum-silicon-based castable by adjusting the ratio of aggregates, including the following raw materials: the mass fraction of calcium aluminate cement is 35% to 40%, the mass fraction of floating beads is 1% to 4%, and the mass fraction of sinking beads is The mass fraction is 10%-15%, the mass fraction of silica powder is 3%-6%, the mass fraction of perlite aggregate is 20%-32%, and the mass fraction of ceramsite aggregate is 15%-25%.

[0025] The mass fraction of calcium aluminate cement is 37%, the mass fraction of floating beads is 2%, the mass fraction of sinking beads is 11%, the mass fraction of silica powder is 4%, and the mass fraction of perlite aggregate is 23%. The mass fraction of granular aggregate is 23%, the normal temperature compressive strength is 4.6MPa, the linear change rate is -0.12%, the apparent porosity is 14.2%, and the bulk density is 0.86g / cm 3 , Room temperature thermal conductivity 0.86W / mK.

[0026] A method for preparing an alumi...

Embodiment 2

[0035]On the basis of Example 1, an aluminum-silicon-based castable by adjusting the proportion of aggregates, including the following raw materials: the mass fraction of calcium aluminate cement is 35% to 40%, and the mass fraction of floating beads is 1 % to 4%, the mass fraction of sinking beads is 10% to 15%, the mass fraction of silica powder is 3% to 6%, the mass fraction of perlite aggregate is 20% to 32%, and the mass fraction of ceramsite aggregate 15% to 25%.

[0036] The mass fraction of calcium aluminate cement is 37%, the mass fraction of floating beads is 2%, the mass fraction of sinking beads is 11%, the mass fraction of silica powder is 4%, and the mass fraction of perlite aggregate is 26%. The mass fraction of granular aggregate is 20%, the normal temperature compressive strength is 4.3MPa, the linear change rate is -0.14%, the apparent porosity is 14.5%, and the bulk density is 0.78g / cm 3 , Room temperature thermal conductivity 0.74W / mK.

[0037] A method f...

Embodiment 3

[0046] On the basis of Example 2, an aluminum-silicon-based castable by adjusting the aggregate ratio, including the following raw materials: the mass fraction of calcium aluminate cement is 35% to 40%, and the mass fraction of floating beads is 1. % to 4%, the mass fraction of sinking beads is 10% to 15%, the mass fraction of silica powder is 3% to 6%, the mass fraction of perlite aggregate is 20% to 32%, and the mass fraction of ceramsite aggregate 15% to 25%.

[0047] The mass fraction of calcium aluminate cement is 37%, the mass fraction of floating beads is 2%, the mass fraction of sinking beads is 11%, the mass fraction of silica powder is 4%, and the mass fraction of perlite aggregate is 29%. The mass fraction of granular aggregate is 17%, the normal temperature compressive strength is 3.8MPa, the linear change rate is -0.06%, the apparent porosity is 14.9%, and the bulk density is 0.74g / cm 3 , Room temperature thermal conductivity 0.66W / mK.

[0048] A method for prep...

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Abstract

The invention discloses an aluminum-silicon castable prepared by adjusting the aggregate ratio and a preparation method thereof, and the aluminum-silicon castable comprises the following raw materials in percentage by mass: 35-40% of calcium aluminate cement, 1-4% of floating beads, 10-15% of sinking beads, 3-6% of silicon micro powder, 20%-32% of perlite aggregate, and 15%-25% of ceramsite aggregate. According to the aluminum-silicon castable by adjusting the aggregate proportion and the preparation method of the aluminum-silicon castable, the perlite is used as the aggregate, so that the aluminum-silicon castable is light, porous, environment-friendly, pollution-free, capable of absorbing sound and noise, heat-insulating, non-combustible, good in free-running property, excellent in compressive strength and the like, the fluidity of the castable can be remarkably improved by adding the electric smelting ceramsite sand, the strength is improved, and the sintering shrinkage is reduced; and the composite aggregate perlite and the capacitor ceramsite sand are added, so that performance advantages are complementary, and the performance of the aluminum-silicon castable is improved.

Description

technical field [0001] The invention relates to the field of aluminum-silicon-based castables, in particular to an aluminum-silicon-based castable by adjusting the ratio of aggregates and a preparation method thereof. Background technique [0002] Aluminum-silicon refractory castable is a kind of unshaped refractory material widely used, mainly used in various industries such as petroleum, chemical industry, steel, building materials and thermal equipment. With the renewal and progress of monolithic refractory technology and equipment, the industry has gradually higher and greater demands on the performance requirements of castables. It must not only meet the requirements of energy saving, environmental protection, low production cost, and good construction performance of the enterprise, but also meet the basic standards for the use of castables in the relevant refractory industry. [0003] The existing aluminum-silicon-based castables have certain disadvantages in use. Tra...

Claims

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Application Information

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IPC IPC(8): C04B35/66
CPCC04B35/66C04B2235/3222C04B2235/3418C04B2235/3427
Inventor 王玉青蒋志峰马北越昝文宇
Owner 泰兴市恒信特种耐火材料有限公司
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