CN115716743A - Aramid fiber explosion-proof castable - Google Patents
Aramid fiber explosion-proof castable Download PDFInfo
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- CN115716743A CN115716743A CN202211342654.3A CN202211342654A CN115716743A CN 115716743 A CN115716743 A CN 115716743A CN 202211342654 A CN202211342654 A CN 202211342654A CN 115716743 A CN115716743 A CN 115716743A
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Abstract
The invention discloses an aramid fiber anti-explosion castable which comprises the following components in parts by weight: 65-70 parts of aggregate, 5-8 parts of corundum powder, 3-5 parts of alumina micro powder, 3-5 parts of modified silica micro powder, 3-5 parts of aramid fiber, 1-2 parts of silicon carbide and 3-5 parts of composite explosion-proof agent. The invention provides an aramid fiber anti-explosion castable, which is used for improving the anti-explosion performance of the castable by applying aramid fibers to the field of the castable.
Description
Technical Field
The invention relates to the field of explosion-proof castable. More specifically, the invention relates to an aramid fiber explosion-proof castable.
Background
At present, composite ultrafine powder and high-efficiency additives are increasingly used in casting materials, and after the composite ultrafine powder or the high-efficiency additives are used in the casting materials, the situation of over-compact casting lining bodies can occur, so that the difficulty of combined drainage is caused, and finally the phenomenon of cracking of the lining bodies is caused in the temperature rise process. Meanwhile, the refractory castable has the phenomena of instantaneous condensation, delayed hardening, instantaneous loss of fluidity and the like, and is more prone to bursting particularly in the baking process than common castable, and the whole construction body is damaged seriously, so that loss is brought to users, and bad influence is caused.
The aramid fiber is totally called poly-p-phenylene terephthamide, is a novel high-tech synthetic fiber, has the excellent performances of ultrahigh strength, high modulus, high temperature resistance, acid and alkali resistance, light weight and the like, the strength of the aramid fiber is 5-6 times that of a steel wire, the modulus of the aramid fiber is 2-3 times that of the steel wire or glass fiber, the toughness of the aramid fiber is 2 times that of the steel wire, the weight of the aramid fiber is only about 1/5 of that of the steel wire, and the aramid fiber is not decomposed or melted at the temperature of 560 ℃. It has good insulating property and ageing resistance, and has long life cycle. Aramid fiber is an important national defense and military material, and has been widely applied to various aspects of national economy such as aerospace, electromechanics, buildings, automobiles, sports goods and the like as a fiber material with high technical content besides military application. If the aramid fiber can be applied to the castable, the anti-explosion performance of the castable is improved through the aramid fiber, and the performance of the anti-explosion castable is greatly improved.
Disclosure of Invention
The invention aims to provide an aramid fiber anti-explosion castable, which is used for improving the anti-explosion performance of the castable by applying aramid fibers in the field of the castable.
In order to achieve these objects and other advantages in accordance with the present invention, an aramid fiber explosion-proof castable is provided, comprising the following components in parts by weight: 65-70 parts of aggregate, 5-8 parts of corundum powder, 3-5 parts of alumina micro powder, 3-5 parts of modified silica micro powder, 3-5 parts of aramid fiber, 1-2 parts of silicon carbide and 3-5 parts of composite explosion-proof agent.
Preferably, in the aramid fiber anti-explosion castable, the aggregate is formed by mixing alumina and corundum.
Preferably, in the aramid fiber explosion-proof castable, the particle size of particles in the aggregate is more than 1mm and less than 10mm.
Preferably, in the aramid fiber explosion-proof castable, the proportion of particles with the particle size of 8-10mm, particles with the particle size of 5-8mm, particles with the particle size of 3-5mm and particles with the particle size of less than 3mm in the aggregate is 4-8.
Preferably, in the aramid fiber explosion-proof castable, the particle size of the corundum powder is less than 45 μm.
Preferably, in the aramid fiber explosion-proof castable, the particle size of the alumina micro powder is 1-3 μm.
Preferably, in the aramid fiber explosion-proof castable, the particle size of the silica micropowder is 0.1-0.3 μm.
Preferably, in the aramid fiber explosion-proof castable, the composite explosion-proof agent is prepared by mixing aluminum powder, explosion-proof fiber and azodicarbonamide according to a ratio of 3-10.
The invention also provides a preparation method of the aramid fiber anti-explosion castable, which comprises the following steps:
sequentially adding corundum powder, alumina micropowder, modified silica micropowder, aramid fiber, silicon carbide and a composite explosion-proof agent in parts by formula into a stirrer for pre-stirring, then adding aggregate in parts by formula, and stirring uniformly again to obtain the aramid fiber explosion-proof castable.
The invention has the beneficial effects that:
1. according to the invention, the aramid fiber is applied to the castable, and the anti-explosion performance of the castable is improved through the aramid fiber, so that the performance of the anti-explosion castable is greatly improved;
2. the aggregate of the invention is formed by mixing alumina and corundum, and the strength of the anti-explosion castable is better for single alumina or corundum as the aggregate.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Detailed Description
The present invention is further described in detail below with reference to examples so that those skilled in the art can practice the invention with reference to the description.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified.
< example 1>
An aramid fiber explosion-proof castable comprises the following components in parts by weight: 65 parts of aggregate, 5 parts of corundum powder, 3 parts of alumina micro powder, 3 parts of modified silicon dioxide micro powder, 3 parts of aramid fiber, 1 part of silicon carbide and 3 parts of composite explosion-proof agent.
Wherein the aggregate is formed by mixing alumina and corundum.
Wherein the particle size of the particles in the aggregate is more than 1mm and less than 10mm, the proportion of the particles with the particle size of 8-10mm, the particles with the particle size of 5-8mm, the particles with the particle size of 3-5mm and the particles with the particle size of less than 3mm in the aggregate is 4.
Wherein the particle size of the corundum powder is less than 45 mu m; the granularity of the alumina micro powder is 1 mu m; the granularity of the silicon micro powder is 0.1 mu m.
The composite explosion-proof agent is prepared by mixing aluminum powder, explosion-proof fibers and azodicarbonamide according to the ratio of 3.5.
The preparation method of the aramid fiber anti-explosion castable comprises the following steps:
sequentially adding corundum powder, alumina micro powder, modified silica micro powder, aramid fiber, silicon carbide and a composite explosion-proof agent in the formula parts into a stirrer for pre-stirring, adding aggregate in the formula parts, and stirring uniformly again to obtain the aramid fiber explosion-proof castable.
< example 2>
An aramid fiber explosion-proof castable comprises the following components in parts by weight: 67.5 parts of aggregate, 6.5 parts of corundum powder, 4 parts of alumina micro powder, 4 parts of modified silica micro powder, 4 parts of aramid fiber, 1.5 parts of silicon carbide and 4 parts of composite explosion-proof agent.
Wherein the aggregate is formed by mixing alumina and corundum.
Wherein the particle size of the particles in the aggregate is more than 1mm and less than 10mm, the proportion of the particles with the particle size of 8-10mm, the particles with the particle size of 5-8mm, the particles with the particle size of 3-5mm and the particles with the particle size of less than 3mm in the aggregate is 6.
Wherein the particle size of the corundum powder is less than 45 mu m; the granularity of the alumina micro powder is 2 mu m; the granularity of the silicon micro powder is 0.2 mu m.
The composite explosion-proof agent is prepared by mixing aluminum powder, explosion-proof fibers and azodicarbonamide according to the ratio of 6.5.
The preparation method of the aramid fiber anti-explosion castable comprises the following steps:
sequentially adding corundum powder, alumina micropowder, modified silica micropowder, aramid fiber, silicon carbide and a composite explosion-proof agent in parts by formula into a stirrer for pre-stirring, then adding aggregate in parts by formula, and stirring uniformly again to obtain the aramid fiber explosion-proof castable.
< example 3>
An aramid fiber explosion-proof castable comprises the following components in parts by weight: 70 parts of aggregate, 8 parts of corundum powder, 5 parts of alumina micro powder, 5 parts of modified silica micro powder, 5 parts of aramid fiber, 2 parts of silicon carbide and 5 parts of composite explosion-proof agent.
Wherein the aggregate is formed by mixing alumina and corundum.
Wherein the particle size of the particles in the aggregate is more than 1mm and less than 10mm, and the proportion of the particles with the particle size of 10mm to the particles with the particle size of 8mm to the particles with the particle size of 5mm to the particles with the particle size of less than 3mm is 8: 5.
Wherein the particle size of the corundum powder is less than 45 mu m; the granularity of the alumina micro powder is 3 mu m; the granularity of the silicon micro powder is 0.3 mu m.
The composite explosion-proof agent is prepared by mixing aluminum powder, explosion-proof fibers and azodicarbonamide according to the proportion of 10: 1.
The preparation method of the aramid fiber anti-explosion castable comprises the following steps:
sequentially adding corundum powder, alumina micro powder, modified silica micro powder, aramid fiber, silicon carbide and a composite explosion-proof agent in the formula parts into a stirrer for pre-stirring, adding aggregate in the formula parts, and stirring uniformly again to obtain the aramid fiber explosion-proof castable.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable to various fields of endeavor for which the invention may be embodied with additional modifications as would be readily apparent to those skilled in the art, and the invention is therefore not limited to the details given herein and to the embodiments shown and described without departing from the generic concept as defined by the claims and their equivalents.
Claims (9)
1. The aramid fiber explosion-proof castable is characterized by comprising the following components in parts by weight: 65-70 parts of aggregate, 5-8 parts of corundum powder, 3-5 parts of alumina micro powder, 3-5 parts of modified silica micro powder, 3-5 parts of aramid fiber, 1-2 parts of silicon carbide and 3-5 parts of composite explosion-proof agent.
2. The aramid fiber anti-explosion castable according to claim 1, wherein the aggregate is formed by mixing alumina and corundum.
3. The aramid fiber explosion-proof castable according to claim 1, wherein the particle size of the particles in the aggregate is more than 1mm and less than 10mm.
4. The aramid fiber explosion-proof castable according to claim 2, wherein the proportion of particles with the particle size of 8-10mm, particles with the particle size of 5-8mm, particles with the particle size of 3-5mm and particles with the particle size of less than 3mm in the aggregate is 4-8.
5. The aramid fiber explosion-proof castable material according to claim 1, wherein the grain size of the corundum powder is less than 45 μm.
6. The aramid fiber explosion-proof castable according to claim 1, wherein the particle size of the alumina micropowder is 1-3 μm.
7. The aramid fiber explosion-proof castable according to claim 1, wherein the particle size of the silica micropowder is 0.1-0.3 μm.
8. The aramid fiber explosion-proof castable according to claim 1, wherein the composite explosion-proof agent is prepared by mixing aluminum powder, explosion-proof fiber and azodicarbonamide according to the proportion of 3-10.
9. The preparation method of the aramid fiber explosion-proof castable according to any one of claims 1 to 8, characterized by comprising the following steps:
sequentially adding the corundum powder, the alumina micro powder, the modified silica micro powder, the aramid fiber, the silicon carbide and the composite explosion-proof agent in parts by formula into a stirrer for pre-stirring, then adding the aggregate in parts by formula, and stirring again until the mixture is uniform to obtain the aramid fiber explosion-proof castable.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211342654.3A CN115716743A (en) | 2022-10-31 | 2022-10-31 | Aramid fiber explosion-proof castable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211342654.3A CN115716743A (en) | 2022-10-31 | 2022-10-31 | Aramid fiber explosion-proof castable |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102633513A (en) * | 2012-05-08 | 2012-08-15 | 中国钢研科技集团有限公司 | Fast-baking explosion proof type refractory castable for blast furnace iron runner |
| CN102951912A (en) * | 2012-11-01 | 2013-03-06 | 孙志红 | Rapid drying casting material for blast furnace iron runner, and preparation method thereof |
| CN103553683A (en) * | 2013-11-01 | 2014-02-05 | 孙志红 | Main iron runner pouring material for 1350m<3> blast furnace |
| CN104016689A (en) * | 2014-05-27 | 2014-09-03 | 安徽瑞泰新材料科技有限公司 | Low cement castable |
| CN109534848A (en) * | 2018-12-27 | 2019-03-29 | 阳泉市兆基炉料有限公司 | Kiln high-strength light castable |
| CN112592134A (en) * | 2020-12-24 | 2021-04-02 | 广州朋悦建材科技发展有限公司 | UHPC with strong explosion resistance and high fire resistance as well as preparation method and application thereof |
| WO2021238029A1 (en) * | 2020-05-29 | 2021-12-02 | 郑州市瑞沃耐火材料有限公司 | High-thermal-conductivity molten iron trough castable |
-
2022
- 2022-10-31 CN CN202211342654.3A patent/CN115716743A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102633513A (en) * | 2012-05-08 | 2012-08-15 | 中国钢研科技集团有限公司 | Fast-baking explosion proof type refractory castable for blast furnace iron runner |
| CN102951912A (en) * | 2012-11-01 | 2013-03-06 | 孙志红 | Rapid drying casting material for blast furnace iron runner, and preparation method thereof |
| CN103553683A (en) * | 2013-11-01 | 2014-02-05 | 孙志红 | Main iron runner pouring material for 1350m<3> blast furnace |
| CN104016689A (en) * | 2014-05-27 | 2014-09-03 | 安徽瑞泰新材料科技有限公司 | Low cement castable |
| CN109534848A (en) * | 2018-12-27 | 2019-03-29 | 阳泉市兆基炉料有限公司 | Kiln high-strength light castable |
| WO2021238029A1 (en) * | 2020-05-29 | 2021-12-02 | 郑州市瑞沃耐火材料有限公司 | High-thermal-conductivity molten iron trough castable |
| CN112592134A (en) * | 2020-12-24 | 2021-04-02 | 广州朋悦建材科技发展有限公司 | UHPC with strong explosion resistance and high fire resistance as well as preparation method and application thereof |
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