Fireproof fiber layer for high-temperature furnace roller

A refractory fiber layer and high-temperature furnace technology, applied in the field of refractory materials, can solve problems such as easy surface defects, reduced refractory performance, and reduced product quality, and achieve excellent mechanical strength, excellent refractory performance, and cost-effective effects.

Inactive Publication Date: 2017-02-15
江苏优泽科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Furnace rollers are large-diameter hearth rollers used in continuous annealing production lines, and their quality is one of the main factors affecting the operating rate and product surface quality. , so that the surface is prone to defects, resulting in the decline

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0017] Example 1:

[0018] A refractory fiber layer for a high-temperature furnace roller with a thickness of 10mm; its components and the mass fractions of each component are: silicate fiber: 62 parts, silica aerogel: 17 parts, aluminum phosphate Gel: 5 parts, acidic aqueous solution of ethyl orthosilicate: 4 parts, admixture: 13 parts.

[0019] Wherein, the admixture is in powder form, and is specifically any one or a combination of any one of aluminum oxide, silicon oxide, titanium oxide and zinc oxide.

Example Embodiment

[0020] Example 2:

[0021] A refractory fiber layer for a high-temperature furnace roll with a thickness of 0.5 mm; its components and the mass fractions of each component are: silicate fiber: 55 parts, silica aerogel: 20 parts, phosphoric acid Aluminum gel: 7 parts, acidic aqueous solution of ethyl orthosilicate: 5 parts, admixture: 17 parts.

[0022] Wherein, the admixture is in powder form, and is specifically any one or a combination of any one of aluminum oxide, silicon oxide, titanium oxide and zinc oxide.

Example Embodiment

[0023] Example 3:

[0024] A refractory fiber layer used for a high-temperature furnace roll with a thickness of 15mm; its components and the mass fractions of each component are: silicate fiber: 65 parts, silica aerogel: 13 parts, aluminum phosphate Gel: 4 parts, acidic aqueous solution of ethyl orthosilicate: 3 parts, admixture: 10 parts.

[0025] Wherein, the admixture is in powder form, and is specifically any one or a combination of any one of aluminum oxide, silicon oxide, titanium oxide and zinc oxide.

[0026] The refractory fiber layers are respectively made according to the composition ratios provided in the above three examples. Among them, the refractory properties and mechanical strength of Example 1 are the best, and Example 3 is the second, and Example 2 is slightly worse; but the refractory fibers obtained in Example 2 Layer wrapping with the surface of the furnace roll can also significantly improve the refractory performance of the furnace roll.

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PUM

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Abstract

The invention provides a fireproof fiber layer for a high-temperature furnace roller. The fireproof fiber layer comprises the following components in parts by mass: 55-65 parts of silicate fibers, 13-20 parts of silica aerogel, 4-7 parts of aluminum phosphate gel, 3-5 parts of an acidic aqueous solution of ethyl orthosilicate, and 10-17 parts of an admixture. The fireproof fiber layer has excellent fire resistance and mechanical strength, is suitable in cost and can be used for directly machining the surface of the furnace roller, the fire resistance of the furnace roller is improved, and the service effect and time of the furnace roller are improved.

Description

technical field [0001] The invention belongs to the field of refractory materials, and in particular relates to a refractory fiber layer used for high-temperature furnace rolls. Background technique [0002] Furnace rollers are large-diameter hearth rollers used in continuous annealing production lines, and their quality is one of the main factors affecting the operating rate and product surface quality. , so that the surface is prone to defects, resulting in the decline of its refractory performance, which further leads to a significant reduction in its mechanical properties and a reduction in product quality. Therefore, it is particularly important to ensure the refractory performance of the furnace roll. Wrap a layer of refractory material. [0003] Therefore, developing a high-quality refractory material is an urgent problem for those skilled in the art. Contents of the invention [0004] In order to solve the above problems, the invention discloses a refractory fibe...

Claims

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Application Information

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IPC IPC(8): C04B35/66
CPCC04B35/66C04B2235/3217C04B2235/3232C04B2235/3284C04B2235/3418C04B2235/447C04B2235/522
Inventor 马中亮于兴仁蒋斌
Owner 江苏优泽科技有限公司
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