CN103553638B - Wear resistant castable - Google Patents
Wear resistant castable Download PDFInfo
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- CN103553638B CN103553638B CN201310450688.9A CN201310450688A CN103553638B CN 103553638 B CN103553638 B CN 103553638B CN 201310450688 A CN201310450688 A CN 201310450688A CN 103553638 B CN103553638 B CN 103553638B
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Abstract
The invention discloses a wear resistant castable, which comprises, by weight: aggregate, which includes 20-30 parts of fused brown fused alumina with a particle size of less than 3mm, and 35-45 parts of power industrial ceramic particles with a particle size of 3-8mm; fine powder, which includes 3-5 parts of electric porcelain processing ball milled powder with a particle size of less than 0.088mm, 8-10 parts of silicon carbide fine powder with a particle size of less than 0.064mm, 6-8 parts of kyanite powder with a particle size of less than 0.088mm, 3-5 parts of silicon micropowder with a particle size of less than 1 micrometer, and 10-12 parts of CA-50-N cement; a binder, which includes 3-5 parts of silicon micropowder with a particle size of less than 1 micrometer, 10-12 parts of CA-50-N cement with a particle size of 5-12 micrometers; and an additive, which includes 0.05-0.15 part of polyphosphate with a particle size of less than 0.45mm, and 0.02-0.04 part of polycarboxylic acid ether with a particle size of less than 0.45mm.
Description
Technical field
The present invention relates to castable technical field, particularly relate to a kind of wear-resistant castable.
Background technology
Castable is a kind of granular and pulverulent material be made up of refractory substance, that there is higher mobility, with pouring procedure construction, and without the need to heating and hardenable unshape refractory, generally using scene shaping with the method for pouring into a mould, shaking or making firm by ramming, also can make prefabricated component and use.
Castable refractory is current manufacture and usage the most a kind of unshape refractory, is mainly used in constructing the Integral construction things such as various oven inner liners, and some fine quality also can be used for smelting furnace.Along with the development of refractory material, the quality of castable also wants corresponding raising, although developed the multiple castable with specific function at present, but still can not meet demand, how preparing one washes away with polishing machine good, and caustic corrosion resistance is strong, can resist various STRESS VARIATION, and all there is from normal temperature to middle temperature the castable of good intensity and fatigue resistance, become technical problem urgently to be resolved hurrily at present.
Summary of the invention
In order to solve the technical problem existed in background technology, the present invention proposes a kind of wear-resistant castable, it is good that described wear-resistant castable washes away with polishing machine, can resist the destruction of alkali erosion and various STRESS VARIATION, all have good intensity and fatigue resistance from normal temperature to middle temperature.
A kind of wear-resistant castable, its component comprises by weight:
Aggregate, it comprises particle diameter is less than fused brown corundum 20-30 part of 3mm, particle diameter is 3-8mm power industry ceramic particle 35-45 part;
Fine powder, silicon powder 3-5 part, CA-50-N cement 10-12 part that aquamaine stone flour 6-8 part that it comprises particle diameter is less than electroceramics processing ball milling powder 3-5 part of 0.088mm, particle diameter is less than 0.064mm carbide fine powder 8-10 part, particle diameter is less than 0.088mm, particle diameter are less than 1 μm;
Bonding agent, it silicon powder 3-5 part, particle diameter comprising that particle diameter is less than 1 μm is CA-50-N cement 10-12 part of 5-12 μm;
Additive, it comprises polycarboxylic acid 0.02-0.04 part that particle diameter is less than Quadrafos 0.05-0.15 part of 0.45mm, particle diameter is less than 0.45mm.
Preferably, described aggregate comprises: power industry ceramic particle 38-43 part that particle diameter is less than fused brown corundum 18-24 part of 3mm, particle diameter is 3-8mm.
Preferably, described fine powder comprises: carbide fine powder 8-9 part that particle diameter is less than electroceramics processing ball milling powder 4-5 part of 0.088mm, particle diameter is less than 0.057mm, particle diameter are less than aquamaine stone flour 6-7 part of 0.088mm, particle diameter is less than 1 μm silicon powder 3-4 part, CA-50-N cement 11-12 part.
Preferably, described bonding agent comprises: silicon powder 3-4 part, particle diameter that particle diameter is less than 1 μm are CA-50-N cement 11-12 part of 6-11 μm.
Preferably, described additive comprises: polycarboxylic acid 0.02-0.03 part that particle diameter is less than Quadrafos 0.05-0.11 part of 0.42mm, particle diameter is less than 0.42mm.
Preferably, described fused brown corundum comprises by weight: fused brown corundum 10-15 part that particle diameter is less than fused brown corundum 10-15 part of 1mm, particle diameter is 1-3mm.
Preferably, described power industry ceramic particle comprises by weight: power industry ceramic particle 20-25 part that power industry ceramic particle 15-20 part that particle diameter is 3-5mm, particle diameter are 5-8mm.
In the present invention, described wear-resistant castable with high-grade power industry ceramic particle, fused brown corundum for aggregate, reasonably combined with fine powder, additive, classification is carried out to component, and the strict proportioning controlling each component, the wear-resistant castable of preparation has good agglutinating property, makes it have higher intensity and good wearability in normal temperature to middle temperature; Because the thermal coefficient of expansion of power industry ceramic particle, fused brown corundum is different, castable can be made in use to produce fine cracks, thus can the destruction of relieve stresses; Additive selects Quadrafos, polycarboxylic acid, and its proportioning of Reasonable adjustment, castable can be made to have the more suitable cast cured explosive time; In the present invention, described wear-resistant castable has good resistance to erosion and abrasion resistance properties, and can resist the destruction of alkali erosion and various STRESS VARIATION, from normal temperature value, temperature all has good intensity and fatigue resistance.
Detailed description of the invention
Embodiment 1
A kind of wear-resistant castable, its component comprises by weight:
Aggregate, the power industry ceramic particle 15 parts that it comprises particle diameter is less than the fused brown corundum 10 parts of 1mm, particle diameter is 1-3mm fused brown corundum 10 parts, particle diameter are 3-5mm, particle diameter are the power industry ceramic particle 20 parts of 5-8mm;
Fine powder, it comprises electroceramics processing ball milling powder 5 parts, particle diameter that particle diameter is less than 0.088mm are less than the carbide fine powder 8 parts of 0.064mm, particle diameter is less than 0.088mm aquamaine stone flour 8 parts, particle diameter is less than 1 μm silicon powder 3 parts, CA-50-N cement 12 parts;
Bonding agent, it silicon powder 3 parts, particle diameter comprising that particle diameter is less than 1 μm is the CA-50-N cement 12 parts of 12 μm;
Additive, it comprises the polycarboxylic acid 0.04 part that particle diameter is less than the Quadrafos 0.05 part of 0.45mm, particle diameter is less than 0.45mm;
When adopting described castable to prepare pouring piece, dry castable can be added in mixer and stir 3 minutes, then add a certain amount of water and stir.Progressively pour in mould, limit is reinforced, limit vibrates construction, is demoulding maintenance after waiting pouring piece to solidify, install after toasting and can come into operation.
Described wear-resistant castable is carried out sample preparation according to " YB/T5202.1-2003 unshape refractory preparation method of sample part 1 castable refractory ", maintenance, baking, all samples all carry out 110 DEG C × 24h drying and processing, then heat through 1100 DEG C × 3h, be chilled to normal temperature and detect its bulk density respectively, rupture strength, compressive resistance, Linear change rate after burning, thermal shock resistance tests 1100 DEG C ≒ water-cooleds, 10 circulations, the quality of constant sample is carried out with remaining rupture strength and strength retention, shown in table 1, for castable technical indicator (contrast table) of resistance to wearing:
Table 1 resistance to wears castable technical indicator (contrast table)
Embodiment 2
A kind of wear-resistant castable, its component comprises by weight:
Aggregate, the power industry ceramic particle 17 parts that it comprises particle diameter is less than the fused brown corundum 11 parts of 1mm, particle diameter is 1-3mm fused brown corundum 12 parts, particle diameter are 3-5mm, particle diameter are the power industry ceramic particle 21 parts of 5-8mm;
Fine powder, it comprises electroceramics processing ball milling powder 4 parts, particle diameter that particle diameter is less than 0.088mm are less than the carbide fine powder 9 parts of 0.057mm, particle diameter is less than 0.088mm aquamaine stone flour 7 parts, particle diameter is less than 1 μm silicon powder 4 parts, CA-50-N cement 11 parts;
Bonding agent, it silicon powder 4 parts, particle diameter comprising that particle diameter is less than 1 μm is the CA-50-N cement 11 parts of 6-11 μm;
Additive, it comprises the polycarboxylic acid 0.03 part that particle diameter is less than the Quadrafos 0.1 part of 0.42mm, particle diameter is less than 0.42mm.
When adopting described castable to prepare pouring piece, dry castable can be added in mixer and stir 3 minutes, then add a certain amount of water and stir.Progressively pour in mould, limit is reinforced, limit vibrates construction, is demoulding maintenance after waiting pouring piece to solidify, install after toasting and can come into operation.
Described wear-resistant castable is carried out sample preparation according to " YBT5202.1-2003 unshape refractory preparation method of sample part 1 castable refractory ", maintenance, baking, all samples all carry out 110 DEG C × 24h drying and processing, then heat through 1100 DEG C × 3h, be chilled to normal temperature and detect its bulk density respectively, rupture strength, compressive resistance, Linear change rate after burning, thermal shock resistance tests 1100 DEG C ≒ water-cooleds, 10 circulations, the quality of constant sample is carried out with remaining rupture strength and strength retention, shown in table 2, for castable technical indicator (contrast table) of resistance to wearing:
Table 2 resistance to wears castable technical indicator (contrast table)
Embodiment 3
A kind of wear-resistant castable, its component comprises by weight:
Aggregate, the power industry ceramic particle 20 parts that it comprises particle diameter is less than the fused brown corundum 15 parts of 1mm, particle diameter is 1-3mm electric capacity Brown Alundum 15 parts, particle diameter are 3-5mm, particle diameter are the power industry ceramic particle 25 parts of 5mm;
Fine powder, it comprises electroceramics processing ball milling powder 3 parts, particle diameter that particle diameter is less than 0.088mm are less than the carbide fine powder 10 parts of 0.064mm, particle diameter is less than 0.088mm aquamaine stone flour 6 parts, particle diameter is less than 1 μm silicon powder 5 parts, CA-50-N cement 10 parts;
Bonding agent, it silicon powder 5 parts, particle diameter comprising that particle diameter is less than 1 μm is the CA-50-N cement 10 parts of 5 μm;
Additive, it comprises the polycarboxylic acid 0.02 part that particle diameter is less than the Quadrafos 0.15 part of 0.45mm, particle diameter is less than 0.45mm;
When adopting described castable to prepare pouring piece, dry castable can be added in mixer and stir 3 minutes, then add a certain amount of water and stir.Progressively pour in mould, limit is reinforced, limit vibrates construction, is demoulding maintenance after waiting pouring piece to solidify, install after toasting and can come into operation.
Described wear-resistant castable is carried out sample preparation according to " YBT5202.1-2003 unshape refractory preparation method of sample part 1 castable refractory ", maintenance, baking, all samples all carry out 110 DEG C × 24h drying and processing, then heat through 1100 DEG C × 3h, be chilled to normal temperature and detect its bulk density respectively, rupture strength, compressive resistance, Linear change rate after burning, thermal shock resistance tests 1100 DEG C ≒ water-cooleds, 10 circulations, the quality of constant sample is carried out with remaining rupture strength and strength retention, shown in table 1, for castable technical indicator (contrast table) of resistance to wearing:
Table 3 resistance to wears castable technical indicator (contrast table)
In the present invention, described wear-resistant castable with high-grade power industry ceramic particle, fused brown corundum for aggregate, reasonably combined with fine powder, additive, by carrying out classification to its component, and the strict proportioning controlling each component, the wear-resistant castable of preparation has good agglutinating property, makes it have higher intensity and good wearability in normal temperature to middle temperature; Because the thermal coefficient of expansion of power industry ceramic particle, fused brown corundum is different, castable can be made in use to produce fine cracks, thus can the destruction of relieve stresses; Additive selects Quadrafos, polycarboxylic acid, and its proportioning of Reasonable adjustment, castable can be made to have the more suitable cast cured explosive time; In the present invention, described wear-resistant castable has good resistance to erosion and abrasion resistance properties, can resist the destruction of alkali erosion and various STRESS VARIATION, all have good intensity and fatigue resistance from normal temperature to middle temperature.
The above; be only the present invention's preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (7)
1. a wear-resistant castable, is characterized in that, its component comprises by weight:
Aggregate, it comprises particle diameter is less than fused brown corundum 20-30 part of 3mm, particle diameter is 3-8mm power industry ceramic particle 35-45 part;
Fine powder, silicon powder 3-5 part, CA-50-N cement 10-12 part that aquamaine stone flour 6-8 part that it comprises particle diameter is less than electroceramics processing ball milling powder 3-5 part of 0.088mm, particle diameter is less than 0.064mm carbide fine powder 8-10 part, particle diameter is less than 0.088mm, particle diameter are less than 1 μm;
Bonding agent, it silicon powder 3-5 part, particle diameter comprising that particle diameter is less than 1 μm is CA-50-N cement 10-12 part of 5-12 μm;
Additive, it comprises polycarboxylic acid 0.02-0.04 part that particle diameter is less than Quadrafos 0.05-0.15 part of 0.45mm, particle diameter is less than 0.45mm.
2. wear-resistant castable according to claim 1, is characterized in that, described aggregate comprises: power industry ceramic particle 38-43 part that particle diameter is less than fused brown corundum 20-24 part of 3mm, particle diameter is 3-8mm.
3. wear-resistant castable according to claim 1, it is characterized in that, described fine powder comprises: carbide fine powder 8-9 part that particle diameter is less than electroceramics processing ball milling powder 4-5 part of 0.088mm, particle diameter is less than 0.057mm, particle diameter are less than aquamaine stone flour 6-7 part of 0.088mm, particle diameter is less than 1 μm silicon powder 3-4 part, CA-50-N cement 11-12 part.
4. the wear-resistant castable according to any one of claim 1-3, is characterized in that, described bonding agent comprises: silicon powder 3-4 part, particle diameter that particle diameter is less than 1 μm are CA-50-N cement 11-12 part of 6-11 μm.
5. the wear-resistant castable according to any one of claim 1-3, is characterized in that, described additive comprises: polycarboxylic acid 0.02-0.03 part that particle diameter is less than Quadrafos 0.05-0.11 part of 0.42mm, particle diameter is less than 0.42mm.
6. the wear-resistant castable according to any one of claim 1-3, is characterized in that, described fused brown corundum comprises by weight: fused brown corundum 10-15 part that particle diameter is less than fused brown corundum 10-15 part of 1mm, particle diameter is 1-3mm.
7. the wear-resistant castable according to any one of claim 1-3, it is characterized in that, described power industry ceramic particle comprises by weight: power industry ceramic particle 20-25 part that power industry ceramic particle 15-20 part that particle diameter is 3-5mm, particle diameter are 5-8mm.
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| CN108424156A (en) * | 2018-04-27 | 2018-08-21 | 武汉科技大学 | A kind of heat insulation and wear resistance castable and preparation method thereof |
| CN108558421A (en) * | 2018-06-11 | 2018-09-21 | 无锡远能耐火材料有限公司 | Waste incinerator castable refractory and its method prepared by discarded high tension insulator |
| CN109369201A (en) * | 2018-12-20 | 2019-02-22 | 无锡远能耐火材料有限公司 | Anticorrosive castable and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674859A (en) * | 2012-05-24 | 2012-09-19 | 洛阳理工学院 | Refractory castable for kilneye and kiln head cover of rotary kiln |
| CN103242051A (en) * | 2013-05-30 | 2013-08-14 | 武汉科技大学 | Lightweight corundum-mullite castable and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674859A (en) * | 2012-05-24 | 2012-09-19 | 洛阳理工学院 | Refractory castable for kilneye and kiln head cover of rotary kiln |
| CN103242051A (en) * | 2013-05-30 | 2013-08-14 | 武汉科技大学 | Lightweight corundum-mullite castable and preparation method thereof |
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