CN104860694A - Self-flowing refractory castable - Google Patents
Self-flowing refractory castable Download PDFInfo
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- CN104860694A CN104860694A CN201510344800.XA CN201510344800A CN104860694A CN 104860694 A CN104860694 A CN 104860694A CN 201510344800 A CN201510344800 A CN 201510344800A CN 104860694 A CN104860694 A CN 104860694A
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Abstract
The invention discloses self-flowing refractory castable which includes the following components in parts by weight: 25 to 45 parts of dense corundum, 15 to 35 parts of tabular alumina, 15 to 25 parts of fused white corundum, 5 to 15 parts of alpha-Al2O3, 6 to 12 parts of SiO2 ultrafine powder, 8 to 18 parts of pure calcium aluminate cement, 3 to 8 parts of sodium tripolyphosphate, 3 to 8 parts of sodium hexametaphosphate, 13 to 25 parts of magnesia aggregate, 5 to 10 parts of alumina-magnesia spinel, 5 to 10 parts of water glass, 3 to 8 parts of calcium carbonate, 2 to 6 parts of chromite, 1 to 5 parts of chromium hemitrioxide, 1 to 3 parts of aluminium powder, 1 to 3 parts of silica fume, 2 to 7 parts of pyromellitic dianhydride, and 1 to 6 parts of 3,3',4,4'-benzophenonetetracarboxylic dianhydride. The self-flowing refractory castable is good in mechanical strength and high temperature resistance.
Description
[technical field]
The present invention relates to the technical field of refractory castable.
[background technology]
Mould material, also known as refractory castable, is a kind ofly add by refractory material the granular and powder material that a certain amount of bonding agent makes, has comparatively high workability, with the unshape refractory that pouring type is shaping.Compare with other unshape refractories, bonding agent and moisture content higher, mobility is better, so mould material range of application is comparatively wide, can be selected according to working conditions to material used and bonding agent.Both directly can pour into lining body to use, available cast or bumping method make prefabricated section use again.
[summary of the invention]
Object of the present invention solves the problems of the prior art exactly, a kind of self-flow refractory castable is proposed, there is intensity high, alkali-resistivity and the strong advantage of sodium salt melts erosional competency, also there is intensity after burning high, it is little that intensity thermal treatment temp raises fall, and heat-shock resistance is better, the advantages such as set time is short.
For achieving the above object, the present invention proposes a kind of self-flow refractory castable, comprise following component and the ratio of each component is: compact alumina: 25 ~ 45 parts, plate diamond spar: 15 ~ 35 parts, fused white corundum: 15 ~ 25 parts, α-Al
2o
3: 5 ~ 15 parts, SiO
2super-fine powder: 6 ~ 12 parts, pure calcium aluminate cement: 8 ~ 18 parts, tripoly phosphate sodium STPP: 3 ~ 8 parts, Sodium hexametaphosphate 99: 3 ~ 8 parts, magnesia aggregate: 13 ~ 25 parts, aluminum-spinel: 5 ~ 10 parts, water glass: 5 ~ 10 parts, calcium carbonate: 3 ~ 8 parts, chromite: 2 ~ 6 parts, chromic oxide: 1 ~ 5 part, aluminium powder: 1 ~ 3 part, silica flour: 1 ~ 3 part, pyromellitic acid anhydride: 2 ~ 7 parts, Benzophenone acid dianhydride: 1 ~ 6 part.
As preferably, comprise following component and the ratio of each component is: compact alumina: 25 parts, plate diamond spar: 15 parts, fused white corundum: 15 parts, α-Al
2o
3: 5 parts, SiO
2super-fine powder: 6 parts, pure calcium aluminate cement: 8 parts, tripoly phosphate sodium STPP: 3 parts, Sodium hexametaphosphate 99: 3 parts, magnesia aggregate: 13 parts, aluminum-spinel: 5 parts, water glass: 5 parts, calcium carbonate: 3 parts, chromite: 2 parts, chromic oxide: 1 part, aluminium powder: 1 part, silica flour: 1 part, pyromellitic acid anhydride: 2 parts, Benzophenone acid dianhydride: 1 part.
As preferably, comprise following component and the ratio of each component is: compact alumina: 35 parts, plate diamond spar: 25 parts, fused white corundum: 19 parts, α-Al
2o
3: 8 parts, SiO
2super-fine powder: 7 parts, pure calcium aluminate cement: 10 parts, tripoly phosphate sodium STPP: 5 parts, Sodium hexametaphosphate 99: 6 parts, magnesia aggregate: 17 parts, aluminum-spinel: 7 parts, water glass: 8 parts, calcium carbonate: 6 parts, chromite: 4 parts, chromic oxide: 3 parts, aluminium powder: 2 parts, silica flour: 2 parts, pyromellitic acid anhydride: 4 parts, Benzophenone acid dianhydride: 3 parts.
As preferably, comprise following component and the ratio of each component is: compact alumina: 45 parts, plate diamond spar: 35 parts, fused white corundum: 25 parts, α-Al
2o
3: 15 parts, SiO
2super-fine powder: 12 parts, pure calcium aluminate cement: 18 parts, tripoly phosphate sodium STPP: 8 parts, Sodium hexametaphosphate 99: 8 parts, magnesia aggregate: 25 parts, aluminum-spinel: 10 parts, water glass: 10 parts, calcium carbonate: 8 parts, chromite: 6 parts, chromic oxide: 5 parts, aluminium powder: 3 parts, silica flour: 3 parts, pyromellitic acid anhydride: 7 parts, Benzophenone acid dianhydride: 6 parts.
Beneficial effect of the present invention: the present invention is by adding magnesia aggregate and aluminum-spinel, it is high that formation has purity containing magnesia refractory castable, after burning, Linear change rate is little, refractoriness under load advantages of higher, it is high that the magnesia fireproof casting material that water glass combines has intensity, alkali-resistivity and the advantage such as sodium salt melts erosional competency is strong, after the magnesia fireproof casting material that poly-phosphate combines has burning, intensity is high, it is little that intensity thermal treatment temp raises fall, the advantages such as heat-shock resistance is better, for improving the hot strength of magnesia fireproof casting material, add appropriate calcareous material (as calcium carbonate etc.), so that it is high at high temperature to generate bonding strength, the Na that high temperatures exists
2o2CaOP
2o
5phase, but use which kind of bonding agent above-mentioned all difficulty overcome easy aquation problem, easily crack in drying process, add appropriate silicon oxide ultrafine powder and can overcome aquation problem, due to the existence of aluminum-spinel or generate in heat-processed magnesium-aluminium spinel produce expand and tiny crack, cushion the thermal stresses of material internal, therefore its good thermal shock, simultaneously owing to there is a large amount of aluminum-spinels in mould material, thus to slag, there is stronger suppression osmosis, add pyromellitic acid anhydride, Benzophenone acid dianhydride can effectively shorten solidification required time.
[embodiment]
A kind of self-flow refractory castable of the present invention, comprises following component and the ratio of each component is: compact alumina: 25 ~ 45 parts, plate diamond spar: 15 ~ 35 parts, fused white corundum: 15 ~ 25 parts, α-Al
2o
3: 5 ~ 15 parts, SiO
2super-fine powder: 6 ~ 12 parts, pure calcium aluminate cement: 8 ~ 18 parts, tripoly phosphate sodium STPP: 3 ~ 8 parts, Sodium hexametaphosphate 99: 3 ~ 8 parts, magnesia aggregate: 13 ~ 25 parts, aluminum-spinel: 5 ~ 10 parts, water glass: 5 ~ 10 parts, calcium carbonate: 3 ~ 8 parts, chromite: 2 ~ 6 parts, chromic oxide: 1 ~ 5 part, aluminium powder: 1 ~ 3 part, silica flour: 1 ~ 3 part, pyromellitic acid anhydride: 2 ~ 7 parts, Benzophenone acid dianhydride: 1 ~ 6 part.
Embodiment one:
A kind of self-flow refractory castable, comprises following component and the ratio of each component is: compact alumina: 25 parts, plate diamond spar: 15 parts, fused white corundum: 15 parts, α-Al
2o
3: 5 parts, SiO
2super-fine powder: 6 parts, pure calcium aluminate cement: 8 parts, tripoly phosphate sodium STPP: 3 parts, Sodium hexametaphosphate 99: 3 parts, magnesia aggregate: 13 parts, aluminum-spinel: 5 parts, water glass: 5 parts, calcium carbonate: 3 parts, chromite: 2 parts, chromic oxide: 1 part, aluminium powder: 1 part, silica flour: 1 part, pyromellitic acid anhydride: 2 parts, Benzophenone acid dianhydride: 1 part.
Embodiment two:
A kind of self-flow refractory castable, comprises following component and the ratio of each component is: compact alumina: 35 parts, plate diamond spar: 25 parts, fused white corundum: 19 parts, α-Al
2o
3: 8 parts, SiO
2super-fine powder: 7 parts, pure calcium aluminate cement: 10 parts, tripoly phosphate sodium STPP: 5 parts, Sodium hexametaphosphate 99: 6 parts, magnesia aggregate: 17 parts, aluminum-spinel: 7 parts, water glass: 8 parts, calcium carbonate: 6 parts, chromite: 4 parts, chromic oxide: 3 parts, aluminium powder: 2 parts, silica flour: 2 parts, pyromellitic acid anhydride: 4 parts, Benzophenone acid dianhydride: 3 parts.
Embodiment three:
A kind of self-flow refractory castable, comprises following component and the ratio of each component is: compact alumina: 45 parts, plate diamond spar: 35 parts, fused white corundum: 25 parts, α-Al
2o
3: 15 parts, SiO
2super-fine powder: 12 parts, pure calcium aluminate cement: 18 parts, tripoly phosphate sodium STPP: 8 parts, Sodium hexametaphosphate 99: 8 parts, magnesia aggregate: 25 parts, aluminum-spinel: 10 parts, water glass: 10 parts, calcium carbonate: 8 parts, chromite: 6 parts, chromic oxide: 5 parts, aluminium powder: 3 parts, silica flour: 3 parts, pyromellitic acid anhydride: 7 parts, Benzophenone acid dianhydride: 6 parts.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, anyly all belongs to protection scope of the present invention to the scheme after simple transformation of the present invention.
Claims (4)
1. a self-flow refractory castable, is characterized in that: comprise following component and the ratio of each component is: compact alumina: 25 ~ 45 parts, plate diamond spar: 15 ~ 35 parts, fused white corundum: 15 ~ 25 parts, α-Al
2o
3: 5 ~ 15 parts, SiO
2
Super-fine powder: 6 ~ 12 parts, pure calcium aluminate cement: 8 ~ 18 parts, tripoly phosphate sodium STPP: 3 ~ 8 parts, Sodium hexametaphosphate 99: 3 ~ 8 parts, magnesia aggregate: 13 ~ 25 parts, aluminum-spinel: 5 ~ 10 parts, water glass: 5 ~ 10 parts, calcium carbonate: 3 ~ 8 parts, chromite: 2 ~ 6 parts, chromic oxide: 1 ~ 5 part, aluminium powder: 1 ~ 3 part, silica flour: 1 ~ 3 part, pyromellitic acid anhydride: 2 ~ 7 parts, Benzophenone acid dianhydride: 1 ~ 6 part.
2. a kind of self-flow refractory castable as claimed in claim 1, is characterized in that: comprise following component and the ratio of each component is: compact alumina: 25 parts, plate diamond spar: 15 parts, fused white corundum: 15 parts, α-Al
2o
3: 5 parts, SiO
2
Super-fine powder: 6 parts, pure calcium aluminate cement: 8 parts, tripoly phosphate sodium STPP: 3 parts, Sodium hexametaphosphate 99: 3 parts, magnesia aggregate: 13 parts, aluminum-spinel: 5 parts, water glass: 5 parts, calcium carbonate: 3 parts, chromite: 2 parts, chromic oxide: 1 part, aluminium powder: 1 part, silica flour: 1 part, pyromellitic acid anhydride: 2 parts, Benzophenone acid dianhydride: 1 part.
3. a kind of self-flow refractory castable as claimed in claim 1, is characterized in that: comprise following component and the ratio of each component is: compact alumina: 35 parts, plate diamond spar: 25 parts, fused white corundum: 19 parts, α-Al
2o
3: 8 parts, SiO
2
Super-fine powder: 7 parts, pure calcium aluminate cement: 10 parts, tripoly phosphate sodium STPP: 5 parts, Sodium hexametaphosphate 99: 6 parts, magnesia aggregate: 17 parts, aluminum-spinel: 7 parts, water glass: 8 parts, calcium carbonate: 6 parts, chromite: 4 parts, chromic oxide: 3 parts, aluminium powder: 2 parts, silica flour: 2 parts, pyromellitic acid anhydride: 4 parts, Benzophenone acid dianhydride: 3 parts.
4. a kind of self-flow refractory castable as claimed in claim 1, is characterized in that: comprise following component and the ratio of each component is: compact alumina: 45 parts, plate diamond spar: 35 parts, fused white corundum: 25 parts, α-Al
2o
3: 15 parts, SiO
2
Super-fine powder: 12 parts, pure calcium aluminate cement: 18 parts, tripoly phosphate sodium STPP: 8 parts, Sodium hexametaphosphate 99: 8 parts, magnesia aggregate: 25 parts, aluminum-spinel: 10 parts, water glass: 10 parts, calcium carbonate: 8 parts, chromite: 6 parts, chromic oxide: 5 parts, aluminium powder: 3 parts, silica flour: 3 parts, pyromellitic acid anhydride: 7 parts, Benzophenone acid dianhydride: 6 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510344800.XA CN104860694A (en) | 2015-06-19 | 2015-06-19 | Self-flowing refractory castable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510344800.XA CN104860694A (en) | 2015-06-19 | 2015-06-19 | Self-flowing refractory castable |
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|---|---|
| CN104860694A true CN104860694A (en) | 2015-08-26 |
Family
ID=53906936
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|---|---|---|---|
| CN201510344800.XA Pending CN104860694A (en) | 2015-06-19 | 2015-06-19 | Self-flowing refractory castable |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109053167A (en) * | 2018-09-05 | 2018-12-21 | 北京东峰兴达耐火材料有限公司 | Vacuum boiler burner hearth gravity flow pouring material |
| CN112521167A (en) * | 2020-12-08 | 2021-03-19 | 洛阳科创新材料股份有限公司 | Chrome corundum spinel tapping hole head brick for eccentric electric furnace and preparation method thereof |
| CN116239370A (en) * | 2023-04-03 | 2023-06-09 | 宜兴金君耐火炉料有限公司 | 99 castable for prolonging service life of launder in low-oxygen copper rod production and preparation method thereof |
-
2015
- 2015-06-19 CN CN201510344800.XA patent/CN104860694A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109053167A (en) * | 2018-09-05 | 2018-12-21 | 北京东峰兴达耐火材料有限公司 | Vacuum boiler burner hearth gravity flow pouring material |
| CN109053167B (en) * | 2018-09-05 | 2019-06-25 | 北京东峰兴达耐火材料有限公司 | Vacuum boiler burner hearth gravity flow pouring material |
| CN112521167A (en) * | 2020-12-08 | 2021-03-19 | 洛阳科创新材料股份有限公司 | Chrome corundum spinel tapping hole head brick for eccentric electric furnace and preparation method thereof |
| CN116239370A (en) * | 2023-04-03 | 2023-06-09 | 宜兴金君耐火炉料有限公司 | 99 castable for prolonging service life of launder in low-oxygen copper rod production and preparation method thereof |
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Application publication date: 20150826 |
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