CN1323053C

CN1323053C - Fireproof material

Info

Publication number: CN1323053C
Application number: CNB2005100506654A
Authority: CN
Inventors: 徐生富
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-07-11
Filing date: 2005-07-11
Publication date: 2007-06-27
Anticipated expiration: 2025-07-11
Also published as: CN1733653A

Abstract

The present invention relates to a fireproofing material, more specifically a fireproofing material for making burning bearing pots and push plates used for a tunnel kiln. The fireproofing material is prepared by processing the raw materials, such as 5% to 15% of white corundum, 55% to 45% of fused quartz, 25% to 15% of semi-corundum, 3% to 7% of andalusite, a right amount of kaolin, etc., through grinding, mixed block preparation and high temperature sintering, wherein the raw materials have the pulverization granularity requirements that the granularity of the white corundum is from 10 to 320 meshes, the granularity of the fused quartz is from 6 to 150 meshes, the granularity of the semi-corundum is from 10 to 150 meshes, the granularity of the andalusite is from 180 to 320 meshes, and the granularity of the kaolin is from 200 to 300 meshes. For the present invention, the chemical components, the physical properties, the mineral components and the granularity distribution of the raw materials are strictly screened and controlled, the microstructure of the material is optimized, and the mechanical strength and the heat shock resistance stability of the material are improved. The fireproofing material has the advantages of good high temperature resistance and abrasion resistance, high heat shock resistance stability, stable quality and long service life.

Description

A kind of refractory materials

Technical field

The present invention relates to a kind of refractory materials, exactly is the refractory materials that burns saggar and push pedal that holds that a kind of making is used for tunnel furnace.

Background technology

Tunnel furnace is industrial Thermal Equipment commonly used, particularly in electronic industry, use and reach to extensive, as magneticsubstance in sintering process, idiosome is placed in the saggar, carrying saggar by push pedal pushes in the tunnel furnace, pass through the preheating zone successively, heating region, the high-temperature zone, heat preservation zone, more than 30 meter long distance of cooling area, nearly 30 hours, stand the temperature variation from about room temperature to 1400 degree, 36 hours circulation primary are especially in temperature-fall period, to in several minutes, drop to about 50 degree by the high temperature from 1400 degree, thermal shock is very big, and is bearing the squeeze of direction of propulsion all the time and holding the pressure of the nearly 20KG of burning thing and the frictional force of track, and Working environment is very abominable.In sintering procedure, as long as a push pedal or saggar fragmentation, bonding or distortion are arranged, all can cause can't continuing to advance and be forced to stop kiln and turn over the Serious Accident that handle on the top, cause very big financial loss to the user.Provide a large amount of refractory materials preparation methods in the existing patented technology, at various purposes, various performance is provided, but but do not appear in the newspapers at used special refractoriess of severe environment such as push pedal in the tunnel furnace and saggars, at present in a large number in the push pedal of using because physical strength, wear resistance, the quality of aspects such as anti-thermal shock stability and refractoriness under load is not high, generally all can only use 1--2 time, cause the waste of resource, increased production cost greatly, therefore, research and development long service life, the high strength high-temperature refractory that every performance index are stable are unusual urgent problems in the pushed bat kiln.

Summary of the invention

The purpose of this invention is to provide a kind of refractory materials, saggar and push pedal are burnt in holding of using in the suitable for making pushed bat kiln, require to have high temperature resistant and wear resisting property is good, the stable height of anti-thermal shock, steady quality, the advantage of long service life.

The objective of the invention is to realize by following technical scheme.

A kind of refractory materials of the present invention, by the andaluzite of half corundum of the fused quartz of the white fused alumina of 5%--15%, 55%--45%, 25%--15%, 3%--7%, all the other for raw materials such as kaolin through grinding, mixing base and high temperature sintering forms.Wherein the granularity requirements that grinds of each raw material is: white fused alumina 10 to 320 orders, fused quartz 6 to 150 orders, half corundum, 10 to 150 orders, andaluzite 180 to 320 orders, kaolin 200 to 300 orders.By adjusting the distribution of various granularities in each proportion of raw materials and each raw material, the performance that can adjust material is to be suitable for different Application Areass.

Because the present invention carries out strictness screening and control to chemical ingredients, physical property, mineral composition and the size-grade distribution of various raw materials, optimized the microstructure of material, the physical strength and the anti-thermal shock stability of material have been improved, have that high temperature resistant and wear resisting property is good, the stable height of anti-thermal shock, steady quality, the advantage of long service life.

Specific embodiment

Embodiment 1

Grind to 10-36 order, 60-100 order, three kinds of specifications of 180-320 order white fused alumina evenly stand-by by the mixed of 3 parts in 10-36 order, 2 parts in 60-100 order, 4 parts in 180-320 order then; Grind to 6-10 order, 36-60 order, three kinds of specifications of 100-150 order fused quartz evenly stand-by by the mixed of 25 parts in 6-10 order, 18 parts in 36-60 order, 6 parts in 100-150 order then; With half corundum grind to: it is evenly stand-by that 10-36 order, two kinds of specifications of 60-150 order are pressed the mixed of 3 parts in 10-36 order, 1 part in 60-150 order then; Andaluzite is stand-by for grinding to 180 to 320 orders; It is stand-by that kaolin is ground to 200 to 300 orders.Get above-mentioned ready various stand-by raw materials by 7% white fused alumina, 53% fused quartz, 17% half corundum, 6% andaluzite, all the other are the kaolin uniform mixing, dimensional requirement according to product is carried out shaping forming, carries out high temperature sintering and promptly obtain required refractory materials after drying.

Embodiment 2

Grind to 60-100 order, two kinds of specifications of 180-320 order white fused alumina evenly stand-by by the mixed of 1 part in 60-100 order, 5 parts in 180-320 order then; Grind to 10-30 order, two kinds of specifications of 100-150 order fused quartz evenly stand-by by the mixed of 36 parts in 10-30 order, 11 parts in 100-150 order then; With half corundum grind to: it is evenly stand-by that 10-36 order, two kinds of specifications of 60-150 order are pressed the mixed of 3 parts in 10-36 order, 1 part in 60-150 order then; It is stand-by that andaluzite is ground to 180 to 320 orders; It is stand-by that kaolin is ground to 200 to 300 orders.Get above-mentioned ready various stand-by raw materials by 12% white fused alumina, 51% fused quartz, 21% half corundum, 4% andaluzite, all the other are the kaolin uniform mixing, dimensional requirement according to product is carried out shaping forming, carries out high temperature sintering and promptly obtain required refractory materials after drying.

Embodiment 3

Grind to 10-36 order, 60-100 order, three kinds of specifications of 180-320 order white fused alumina evenly stand-by by the mixed of 3 parts in 10-36 order, 2 parts in 60-100 order, 4 parts in 180-320 order then; Grind to 6-10 order, 36-60 order, three kinds of specifications of 100-150 order fused quartz evenly stand-by by the mixed of 25 parts in 6-10 order, 18 parts in 36-60 order, 6 parts in 100-150 order then; With half corundum grind to: it is evenly stand-by that 10-36 order, two kinds of specifications of 60-150 order are pressed the mixed of 3 parts in 10-36 order, 1 part in 60-150 order then; Andaluzite is stand-by for grinding to 180 to 320 orders; It is stand-by that kaolin is ground to 200 to 300 orders.Get above-mentioned ready various stand-by raw materials by 9% white fused alumina, 49% fused quartz, 23% half corundum, 5% andaluzite, all the other are kaolin.Uniform mixing carries out shaping forming according to the dimensional requirement of product, carries out high temperature sintering and promptly obtain required refractory materials after drying.

Embodiment 4

Grind to 60-100 order, two kinds of specifications of 180-320 order white fused alumina evenly stand-by by the mixed of 1 part in 60-100 order, 5 parts in 180-320 order then; Grind to 10-30 order, two kinds of specifications of 100-150 order fused quartz evenly stand-by by the mixed of 36 parts in 10-30 order, 11 parts in 100-150 order then; With half corundum grind to: it is evenly stand-by that 10-36 order, two kinds of specifications of 60-150 order are pressed the mixed of 3 parts in 10-36 order, 1 part in 60-150 order then; Just andaluzite is stand-by for grinding to 180 to 320 orders; It is stand-by that kaolin is ground to 200 to 300 orders.Get above-mentioned ready various stand-by raw materials by 12% white fused alumina, 47% fused quartz, 18% half corundum, 5% andaluzite, all the other are the kaolin uniform mixing, dimensional requirement according to product is carried out shaping forming, carries out high temperature sintering and promptly obtain required refractory materials after drying.

Claims

1, a kind of refractory materials, by the andaluzite of half corundum of the fused quartz of the white fused alumina of 5%--15%, 55%--45%, 25%--15%, 3%--7%, all the other for the kaolin raw material through grinding, mixing base and high temperature sintering forms.

2, refractory materials according to claim 1, it is characterized in that half corundum, the 4%--6% of fused quartz, the 23%--17% of white fused alumina, the 53%--47% of consisting of of described each raw material: 7%--12% andaluzite, all the other are kaolin.

3, refractory materials according to claim 1 is characterized in that consisting of of described each raw material: 7% white fused alumina, 53% fused quartz, 17% half corundum, 6% andaluzite, all the other are kaolin.

4, refractory materials according to claim 1 is characterized in that consisting of of described each raw material: 12% white fused alumina, 51% fused quartz, 21% half corundum, 4% andaluzite, all the other are kaolin.

5, refractory materials according to claim 1 is characterized in that consisting of of described each raw material: 9% white fused alumina, 49% fused quartz, 23% half corundum, 5% andaluzite, all the other are kaolin.

6, refractory materials according to claim 1 is characterized in that consisting of of described each raw material: 12% white fused alumina, 47% fused quartz, 18% half corundum, 5% andaluzite, all the other are kaolin.

7, refractory materials according to claim 1 is characterized in that the granularity of described each raw material is: white fused alumina is that 10 to 320 orders, fused quartz are that 6 to 150 orders, half corundum are that 10 to 150 orders, andaluzite are that 180 to 320 orders, kaolin are 200 to 300 orders.

8, according to claim 3 or 5 described refractory materialss, it is characterized in that the parts by weight of various granularities in the described white fused alumina are: 3 parts in 10-36 order, 2 parts in 60-100 order, 4 parts in 180-320 order; The parts by weight of various granularities are in the described fused quartz: 25 parts in 6-10 order, 18 parts in 36-60 order, 6 parts in 100-150 order; The parts by weight of various granularities are in described half corundum: 3 parts in 10-36 order, 1 part in 60-150 order; Described andaluzite is 180 to 320 an orders system material; Described kaolin is 200 to 300 orders.

9, according to claim 4 or 6 described refractory materialss, it is characterized in that the parts by weight of various granularities in the described white fused alumina are: 1 part in 60-100 order, 5 parts in 180-320 order; The parts by weight of various granularities are in the described fused quartz: 36 parts in 10-30 order, 11 parts in 100-150 order; The parts by weight of various granularities are in described half corundum: 3 parts in 10-36 order, 1 part in 60-150 order; Described andaluzite is 180 to 320 an orders system material; Described kaolin is 200 to 300 orders.