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Method for producing abrasion-resistant fiber surface coating with high wind speed resistance

A technology of surface coating and production method, applied in the field of refractory fiber production

Active Publication Date: 2013-11-20
SUZHOU ISOLITE EASTERN UNION CERAMIC FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface coatings commonly used in China currently have limited wind speed resistance, about 30 m / s. When such surface coatings are used in passivation furnaces and AP furnaces, because the wind speed reaches 60 m / s, they are still Easy to be blown loose and cause loss of insulation layer
In this regard, some customers use refractory bricks to replace surface coatings, but because the price of refractory bricks is 2-3 times that of surface coatings, it cannot generally solve the above problems at low cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The parameters are as follows:

[0018] (1) Particle stirring: 55% of mullite particles; 16% of alumina particles; a cage-type stirring head is used for stirring; the stirring speed is 105rpm, and the time is 10min;

[0019] (2) Sol stirring: aluminum sol 28.5%; 425rpm 10min

[0020] (3) Binder added: 0.5% binder;

[0021] (4) Mixing and stirring: Use a universal mixer, set the speed at 105rpm and stir for 5 minutes, then speed up to 180rpm and stir for 10 minutes;

[0022] (5) Drying: 105°C 24h

[0023] Measured product performance: The heating permanent line change rate (1400°C×24h) of the final product at a service temperature of 1400°C is 0.6%, and other characteristic parameters are blown on the surface at a wind speed of 60m / s, and there is no peeling or erosion for 30 minutes.

Embodiment 2

[0025] The parameters are as follows:

[0026] (1) Particle stirring: 53% mullite particles and 17% alumina particles; use cage stirring head when stirring;

[0027] Stirring speed 105rpm , Stirring time 10min;

[0028] (2) Sol stirring: aluminum sol 29.5%; rotating speed 425rpm, stirring time 12min

[0029] (3) Binder added: 0.5% binder;

[0030] (4) Mixing and stirring: use a universal mixer, set the speed at 105rpm, stir for 5 minutes, then speed up to 180rpm, stir for 10 minutes;

[0031] (5) Drying: 105°C 24h

[0032] Measured product performance: The heating permanent line change rate (1400°C×24h) of the final product at a service temperature of 1400°C is 0.53%, and other characterization parameters are blown on the surface at a wind speed of 60m / s, and there is no peeling or erosion for 30 minutes.

Embodiment 3

[0034] The parameters are as follows:

[0035] (1) Particle stirring: 49.5% of mullite particles; 18% of alumina particles; a cage-type stirring head is used for stirring; the stirring speed is 105rpm, and the time is 8min;

[0036] (2) Sol stirring: aluminum sol 32%; 425rpm 15min

[0037] (3) Binder added: 0.5% binder;

[0038] (4) Mixing and stirring: Use a universal mixer, set the speed at 105rpm and stir for 5 minutes, then speed up to 180rpm and stir for 10 minutes;

[0039] (5) Drying: 105°C 24h

[0040] Measured product performance: The heating permanent line change rate (1400°C×24h) of the final product at a service temperature of 1400°C is 0.7%, and other characteristic parameters are blown on the surface at a wind speed of 60m / s, and there is no peeling or erosion for 30 minutes.

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Abstract

The invention discloses a method for producing an abrasion-resistant fiber surface coating with high wind speed resistance. The wind speed resistance of the surface coating is increased to 60 meters per second by means of improving a process and modifying a formula, the surface coating can be formed by means of being dried at the temperature of 105 DEG C, and is superior to a common surface coating, and performances of the abrasion-resistant fiber surface coating are greatly improved.

Description

Technical field [0001] The invention involves the field of refractory fiber production, especially a high -wind resistance, anti -abrasion fiber surface coating production method. Background technique [0002] At present, in terms of refractory materials for various domestic kiln, ceramic fiber blocks are widely used as refractory insulation layers. Ceramic fiber has special excellent performance. Its shrinkage rate, low thermal conductivity, and good thermal insulation performance.However, in the special use environment of high wind speed (60 meters / second), in some kiln of high wind speeds, due to the soft texture of the ceramic fiber itself, the surface fiber will be blown by high wind speed.The environmental degradation in the furnace will gradually loosen and erode the insulation layer on the one hand.To solve this problem, the surface coatings of refractory fibers have appeared in the domestic market.It takes refractory fiber and refractory powder as its main ingredient. Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 陶治平严继军
Owner SUZHOU ISOLITE EASTERN UNION CERAMIC FIBER