A kind of super silica fume cement composite material and preparation method thereof

A technology of composite materials and super silica fume, which is applied in the field of cement materials, can solve the problems of weakening coil protection, high-purity corundum is expensive, and reduces production efficiency. It can solve the problems of poor thermal shock resistance, excellent oxidation resistance, and increase production efficiency. Effect

Active Publication Date: 2021-11-02
刘树峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current coil cement mostly uses high-purity corundum with high compressive strength and wear resistance as raw material, but high-purity corundum is not only expensive, but also has poor thermal shock resistance, and large cracks and cracks are prone to appear during use. Damage phenomenon requires frequent repairs, which not only reduces production efficiency, but also weakens the protective effect on the coil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A super silica fume cement composite material, comprising a solid component and a liquid component; wherein, the solid component comprises the following components in parts by weight:

[0035] 20 parts of super silica fume, 18 parts of white corundum fine powder, 12 parts of brown corundum fine powder, 9 parts of refractory cement, 7 parts of mullite fiber, 10 parts of α-alumina micropowder, 4 parts of explosion-proof fiber, inorganic salt accelerator 2 copies;

[0036] The liquid component is water; the weight ratio of the solid component to the liquid component is 1:0.2.

[0037] The liquid components need to be remixed with the solid components at the point of use.

[0038] The particle diameter of the white corundum fine powder is 20-100 μm; the particle diameter of the brown corundum fine powder is 20-100 μm.

[0039] The refractory cement is Portland cement; the Portland cement is PO42.5 ordinary Portland cement.

[0040] The α-alumina fine powder is 1-5 μm.

...

Embodiment 2

[0059] A super silica fume cement composite material, comprising a solid component and a liquid component; wherein, the solid component comprises the following components in parts by weight:

[0060] 15 parts of super silica fume, 12 parts of white corundum fine powder, 10 parts of brown corundum fine powder, 8 parts of refractory cement, 6 parts of mullite fiber, 5 parts of α-alumina micropowder, 2 parts of explosion-proof fiber, inorganic salt accelerator 1 copy;

[0061] The liquid component is water; the weight ratio of the solid component to the liquid component is 1:0.1.

[0062] The liquid components need to be remixed with the solid components at the point of use.

[0063] The particle diameter of the white corundum fine powder is 20-100 μm; the particle diameter of the brown corundum fine powder is 20-100 μm.

[0064] The refractory cement is Portland cement; the Portland cement is PO32.5 ordinary Portland cement.

[0065] The α-alumina fine powder is 1-5 μm.

[0...

Embodiment 3

[0084] A super silica fume cement composite material, comprising a solid component and a liquid component; wherein, the solid component comprises the following components in parts by weight:

[0085] 22 parts of super silica fume, 20 parts of white corundum fine powder, 15 parts of brown corundum fine powder, 10 parts of refractory cement, 8 parts of mullite fiber, 15 parts of α-alumina fine powder, 6 parts of explosion-proof fiber, inorganic salt accelerator 3 copies;

[0086] The liquid component is water; the weight ratio of the solid component to the liquid component is 1:0.3.

[0087] The liquid components need to be remixed with the solid components at the point of use.

[0088] The particle diameter of the white corundum fine powder is 20-100 μm; the particle diameter of the brown corundum fine powder is 20-100 μm.

[0089] The refractory cement is Portland cement; the Portland cement is PO42.5 ordinary Portland cement.

[0090] The α-alumina fine powder is 1-5 μm. ...

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Abstract

The present invention relates to the field of cement materials, in particular to a super silica fume cement composite material and a preparation method thereof, including a solid component and a liquid component; wherein, the solid component comprises the following components in parts by weight: super silica fume 15-22 parts, white corundum fine powder 12-20 parts, brown corundum fine powder 10-15 parts, refractory cement 8-10 parts, mullite fiber 6-8 parts, α-alumina fine powder 5-15 parts, explosion-proof 2-6 parts of fiber, 1-3 parts of inorganic salt accelerator. The invention adopts super silicon powder to replace the corundum fine powder used in the prior art, which not only reduces the cost, but also solves the problems of poor thermal shock and easy occurrence of large cracks and breakages in the corundum fine powder during use , to further improve the production efficiency and enhance the protection of the coil.

Description

technical field [0001] The invention relates to the field of mastic materials, in particular to a super silica fume mastic composite material and a preparation method thereof. Background technique [0002] The coil glue is coated around the coil to insulate and protect the coil. With the increasingly harsh smelting conditions of intermediate frequency induction furnaces, the insulation, refractoriness, thermal shock stability, volume stability and heat preservation of coil cement are all required to develop in a better direction. [0003] The current coil cement mostly uses high-purity corundum with high compressive strength and wear resistance as raw material, but high-purity corundum is not only expensive, but also has poor thermal shock resistance, and large cracks and cracks are prone to appear during use. Damage phenomenon requires frequent repairs, which not only reduces production efficiency, but also weakens the protective effect on the coil. Contents of the inven...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
CPCC04B35/66C04B2235/3217C04B2235/3244C04B2235/3891C04B2235/428C04B2235/5228C04B2235/5436C04B2235/5445C04B2235/77C04B2235/96
Inventor 刘树峰
Owner 刘树峰
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