CN105130461A - Anti-hydration magnesia castable - Google Patents
Anti-hydration magnesia castable Download PDFInfo
- Publication number
- CN105130461A CN105130461A CN201510408374.1A CN201510408374A CN105130461A CN 105130461 A CN105130461 A CN 105130461A CN 201510408374 A CN201510408374 A CN 201510408374A CN 105130461 A CN105130461 A CN 105130461A
- Authority
- CN
- China
- Prior art keywords
- parts
- magnesia
- oxide
- corundum
- water resistant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses an anti-hydration magnesia castable, which includes following components: 25-35 parts of magnesite, 15-25 parts of spinel, 15-25 parts of corundum, 5-10 parts of calcium aluminate cement, 2-8 parts of silicon dioxide micro-powder, 1-5 parts of graphite, 3-10 parts of sodium hexametaphosphate, 4-9 parts of boric acid, 2-6 parts of oxalic acid, 3-9 parts of calcium oxide, 5-10 parts of boron oxide, 2-8 parts of nickel oxide, 15-25 parts of organic fibers and 0.1-3 parts of metallic aluminum powder. The magnesia castable has an excellent anti-hydration property.
Description
[technical field]
The present invention relates to the technical field of mould material.
[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.The castable hydration resistance of prior art is poor, easily ftractures.
[summary of the invention]
Object of the present invention solves the problems of the prior art exactly, proposes a kind of water resistant castable, has good hydration resistance.
For achieving the above object, the present invention proposes a kind of water resistant castable, comprise following component and the ratio of each component is: magnesia: 25 ~ 35 parts, spinel: 15 ~ 25 parts, corundum: 15 ~ 25 parts, aluminous cement: 5 ~ 10 parts, fine silica powder: 2 ~ 8 parts, graphite: 1 ~ 5 part, Sodium hexametaphosphate 99: 3 ~ 10 parts, boric acid: 4 ~ 9 parts, oxalic acid: 2 ~ 6 parts, calcium oxide: 3 ~ 9 parts, boron oxide: 5 ~ 10 parts, nickel oxide: 2 ~ 8 parts, organic fibre: 15 ~ 25 parts, metallic aluminium powder: 0.1 ~ 3 part, organosilane: 3 ~ 10 parts, nano-calcium carbonate magnesium: 5 ~ 15 parts.
As preferably, the particle diameter of described magnesia is 3 ~ 10mm, and the particle diameter of corundum is 2 ~ 5mm, and described corundum adopts plate diamond spar.
As preferably, described magnesia is the magnesite clinker extracting production from seawater, in magnesia containing MgO 95 ~ 99.5%, magnesia volume density is 3.30 ~ 3.45g/cm
3.
As preferably, described organic fibre is polyparaphenylene's benzo-dioxazole fiber, poly-to any one in benzoglyoxaline fiber, polyhenylene pyrido diimidazole fiber.
As preferably, comprise following component and the ratio of each component is: magnesia: 25 parts, spinel: 15 parts, corundum: 15 parts, aluminous cement: 5 parts, fine silica powder: 2 parts, graphite: 1 part, Sodium hexametaphosphate 99: 3 parts, boric acid: 4 parts, oxalic acid: 2 parts, calcium oxide: 3 parts, boron oxide: 5 parts, nickel oxide: 2 parts, organic fibre: 15 parts, metallic aluminium powder: 0.1 part, organosilane: 3 parts, nano-calcium carbonate magnesium: 5 parts.
As preferably, comprise following component and the ratio of each component is: magnesia: 30 parts, spinel: 18 parts, corundum: 19 parts, aluminous cement: 7 parts, fine silica powder: 6 parts, graphite: 4 parts, Sodium hexametaphosphate 99: 7 parts, boric acid: 6 parts, oxalic acid: 4 parts, calcium oxide: 6 parts, boron oxide: 8 parts, nickel oxide: 5 parts, organic fibre: 19 parts, metallic aluminium powder: 0.5 part, organosilane: 6 parts, nano-calcium carbonate magnesium: 8 parts.
As preferably, comprise following component and the ratio of each component is: magnesia: 35 parts, spinel: 25 parts, corundum: 25 parts, aluminous cement: 10 parts, fine silica powder: 8 parts, graphite: 5 parts, Sodium hexametaphosphate 99: 10 parts, boric acid: 9 parts, oxalic acid: 6 parts, calcium oxide: 9 parts, boron oxide: 10 parts, nickel oxide: 8 parts, organic fibre: 25 parts, metallic aluminium powder: 2 parts, organosilane: 10 parts, nano-calcium carbonate magnesium: 15 parts.
Beneficial effect of the present invention: the present invention adopts seawater magnesia, the purity of magnesia is high, density is high, high-temperature behavior is good, mainly for the production of high-quality magnesia fireproof goods, in component, add calcium oxide, boron oxide, nickel oxide simultaneously, said components can form Solid solution with magnesium oxide, SiO under the normal temperature in component
2after super-fine powder meets water, its surface forms hydroxyl, i.e. Si-OH key, and after natural curing and drying, dehydration bridge formation defines siloxane network structure.Meanwhile, because there is the O of a large amount of non-bonding on its surface
2-, and O
2-be easy to the Mg being adsorbed on MgO particle surface
2+ion is formed magnesia silicon chain, thus decrease and Mg
2+in conjunction with OH
-group, compared with formation H-O-Mg-O-H and hydrogen-oxygen silicon chain, water molecules decreases.Often form a magnesia silicon chain and can reduce by a water molecules.Because the water yield of discharging reduces, reduce the possibility ftractureed in magnesia product bake process.Simultaneously because MgO particle is interconnected by magnesia silicon chain, thus improve the intensity of product; The organosilane added can produce package action to magnesium oxide, can improve the hydration resistance of castable further; In addition partial oxidation magnesium adopts the decomposition of nano-calcium carbonate magnesium obtained, and the distribution of mould material inner materials is more even, effectively can improve resistance to flaking and the resistance to slag corrosion of mould material.
[embodiment]
Embodiment one:
A kind of water resistant castable, comprise following component and the ratio of each component is: magnesia: 25 parts, spinel: 15 parts, corundum: 15 parts, aluminous cement: 5 parts, fine silica powder: 2 parts, graphite: 1 part, Sodium hexametaphosphate 99: 3 parts, boric acid: 4 parts, oxalic acid: 2 parts, calcium oxide: 3 parts, boron oxide: 5 parts, nickel oxide: 2 parts, organic fibre: 15 parts, metallic aluminium powder: 0.1 part, organosilane: 3 parts, nano-calcium carbonate magnesium: 5 parts, the particle diameter of magnesia is 3mm, the particle diameter of corundum is 2mm, described corundum adopts plate diamond spar, magnesia is the magnesite clinker extracting production from seawater, MgO is contained 95 ~ 99.5% in magnesia, magnesia volume density is 3.30 ~ 3.45g/cm
3, organic fibre is polyparaphenylene's benzo-dioxazole fiber.
Embodiment two:
A kind of water resistant castable, comprise following component and the ratio of each component is: magnesia: 30 parts, spinel: 18 parts, corundum: 19 parts, aluminous cement: 7 parts, fine silica powder: 6 parts, graphite: 4 parts, Sodium hexametaphosphate 99: 7 parts, boric acid: 6 parts, oxalic acid: 4 parts, calcium oxide: 6 parts, boron oxide: 8 parts, nickel oxide: 5 parts, organic fibre: 19 parts, metallic aluminium powder: 0.5 part, organosilane: 6 parts, nano-calcium carbonate magnesium: 8 parts, the particle diameter of magnesia is 8mm, the particle diameter of corundum is 4mm, described corundum adopts plate diamond spar, magnesia is the magnesite clinker extracting production from seawater, MgO is contained 95 ~ 99.5% in magnesia, magnesia volume density is 3.30 ~ 3.45g/cm
3, organic fibre is for gathering benzoglyoxaline fiber.
Embodiment three:
A kind of water resistant castable, comprise following component and the ratio of each component is: magnesia: 35 parts, spinel: 25 parts, corundum: 25 parts, aluminous cement: 10 parts, fine silica powder: 8 parts, graphite: 5 parts, Sodium hexametaphosphate 99: 10 parts, boric acid: 9 parts, oxalic acid: 6 parts, calcium oxide: 9 parts, boron oxide: 10 parts, nickel oxide: 8 parts, organic fibre: 25 parts, metallic aluminium powder: 2 parts, organosilane: 10 parts, nano-calcium carbonate magnesium: 15 parts, the particle diameter of magnesia is 10mm, the particle diameter of corundum is 5mm, described corundum adopts plate diamond spar, magnesia is the magnesite clinker extracting production from seawater, MgO is contained 95 ~ 99.5% in magnesia, magnesia volume density is 3.30 ~ 3.45g/cm
3, organic fibre is polyparaphenylene's benzo-dioxazole fiber.
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 (7)
1. a water resistant castable, it is characterized in that: comprise following component and the ratio of each component is: magnesia: 25 ~ 35 parts, spinel: 15 ~ 25 parts, corundum: 15 ~ 25 parts, aluminous cement: 5 ~ 10 parts, fine silica powder: 2 ~ 8 parts, graphite: 1 ~ 5 part, Sodium hexametaphosphate 99: 3 ~ 10 parts, boric acid: 4 ~ 9 parts, oxalic acid: 2 ~ 6 parts, calcium oxide: 3 ~ 9 parts, boron oxide: 5 ~ 10 parts, nickel oxide: 2 ~ 8 parts, organic fibre: 15 ~ 25 parts, metallic aluminium powder: 0.1 ~ 3 part, organosilane: 3 ~ 10 parts, nano-calcium carbonate magnesium: 5 ~ 15 parts.
2. a kind of water resistant castable as claimed in claim 1, is characterized in that: the particle diameter of described magnesia is 3 ~ 10mm, and the particle diameter of corundum is 2 ~ 5mm, and described corundum adopts plate diamond spar.
3. a kind of water resistant castable as claimed in claim 1, is characterized in that: described magnesia is the magnesite clinker extracting production from seawater, and contain MgO in magnesia 95 ~ 99.5%, magnesia volume density is 3.30 ~ 3.45g/cm
3.
4. a kind of water resistant castable as claimed in claim 1, is characterized in that: described organic fibre is polyparaphenylene's benzo-dioxazole fiber, gathers any one in benzoglyoxaline fiber, polyhenylene pyrido diimidazole fiber.
5. a kind of water resistant castable as claimed in claim 1, is characterized in that: comprise following component and the ratio of each component is: magnesia: 25 parts, spinel: 15 parts, corundum: 15 parts, aluminous cement: 5 parts, fine silica powder: 2 parts, graphite: 1 part, Sodium hexametaphosphate 99: 3 parts, boric acid: 4 parts, oxalic acid: 2 parts, calcium oxide: 3 parts, boron oxide: 5 parts, nickel oxide: 2 parts, organic fibre: 15 parts, metallic aluminium powder: 0.1 part, organosilane: 3 parts, nano-calcium carbonate magnesium: 5 parts.
6. a kind of water resistant castable as claimed in claim 1, is characterized in that: comprise following component and the ratio of each component is: magnesia: 30 parts, spinel: 18 parts, corundum: 19 parts, aluminous cement: 7 parts, fine silica powder: 6 parts, graphite: 4 parts, Sodium hexametaphosphate 99: 7 parts, boric acid: 6 parts, oxalic acid: 4 parts, calcium oxide: 6 parts, boron oxide: 8 parts, nickel oxide: 5 parts, organic fibre: 19 parts, metallic aluminium powder: 0.5 part, organosilane: 6 parts, nano-calcium carbonate magnesium: 8 parts.
7. a kind of water resistant castable as claimed in claim 1, is characterized in that: comprise following component and the ratio of each component is: magnesia: 35 parts, spinel: 25 parts, corundum: 25 parts, aluminous cement: 10 parts, fine silica powder: 8 parts, graphite: 5 parts, Sodium hexametaphosphate 99: 10 parts, boric acid: 9 parts, oxalic acid: 6 parts, calcium oxide: 9 parts, boron oxide: 10 parts, nickel oxide: 8 parts, organic fibre: 25 parts, metallic aluminium powder: 2 parts, organosilane: 10 parts, nano-calcium carbonate magnesium: 15 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510408374.1A CN105130461A (en) | 2015-07-12 | 2015-07-12 | Anti-hydration magnesia castable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510408374.1A CN105130461A (en) | 2015-07-12 | 2015-07-12 | Anti-hydration magnesia castable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105130461A true CN105130461A (en) | 2015-12-09 |
Family
ID=54716108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510408374.1A Pending CN105130461A (en) | 2015-07-12 | 2015-07-12 | Anti-hydration magnesia castable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105130461A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106045546A (en) * | 2016-08-22 | 2016-10-26 | 武汉科技大学 | Magnesium-based casting material and a preparation method thereof |
| CN113943167A (en) * | 2021-12-02 | 2022-01-18 | 湖南湘钢瑞泰科技有限公司 | RH dip pipe castable and preparation method thereof |
| CN114315382A (en) * | 2021-12-17 | 2022-04-12 | 北京金隅通达耐火技术有限公司 | Magnesia-alumina spinel prepared by hydrated magnesia-alumina brick electric melting and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101508587A (en) * | 2009-03-26 | 2009-08-19 | 中钢集团洛阳耐火材料研究院有限公司 | Corundum-spinel pouring material containing nano-magnesium carbonate |
| CN102503496A (en) * | 2011-11-17 | 2012-06-20 | 江苏苏嘉集团新材料有限公司 | Magnesium carbon pouring material |
| CN102643100A (en) * | 2012-05-18 | 2012-08-22 | 贵阳明通炉料有限公司 | Anti-hydration calcium magnesium refractory casting material |
| CN103172405A (en) * | 2013-04-11 | 2013-06-26 | 辽宁青花耐火材料股份有限公司 | Waterproof treatment method for magnesium refractory bricks |
| CN104529491A (en) * | 2014-12-26 | 2015-04-22 | 江苏苏嘉集团新材料有限公司 | Method for preparing composite magnesia carbon bricks of different carbon content |
-
2015
- 2015-07-12 CN CN201510408374.1A patent/CN105130461A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101508587A (en) * | 2009-03-26 | 2009-08-19 | 中钢集团洛阳耐火材料研究院有限公司 | Corundum-spinel pouring material containing nano-magnesium carbonate |
| CN102503496A (en) * | 2011-11-17 | 2012-06-20 | 江苏苏嘉集团新材料有限公司 | Magnesium carbon pouring material |
| CN102643100A (en) * | 2012-05-18 | 2012-08-22 | 贵阳明通炉料有限公司 | Anti-hydration calcium magnesium refractory casting material |
| CN103172405A (en) * | 2013-04-11 | 2013-06-26 | 辽宁青花耐火材料股份有限公司 | Waterproof treatment method for magnesium refractory bricks |
| CN104529491A (en) * | 2014-12-26 | 2015-04-22 | 江苏苏嘉集团新材料有限公司 | Method for preparing composite magnesia carbon bricks of different carbon content |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106045546A (en) * | 2016-08-22 | 2016-10-26 | 武汉科技大学 | Magnesium-based casting material and a preparation method thereof |
| CN113943167A (en) * | 2021-12-02 | 2022-01-18 | 湖南湘钢瑞泰科技有限公司 | RH dip pipe castable and preparation method thereof |
| CN113943167B (en) * | 2021-12-02 | 2022-12-27 | 湖南湘钢瑞泰科技有限公司 | RH dip pipe castable and preparation method thereof |
| CN114315382A (en) * | 2021-12-17 | 2022-04-12 | 北京金隅通达耐火技术有限公司 | Magnesia-alumina spinel prepared by hydrated magnesia-alumina brick electric melting and preparation method thereof |
| CN114315382B (en) * | 2021-12-17 | 2023-05-02 | 北京金隅通达耐火技术有限公司 | Magnesia-alumina spinel prepared by electric melting of hydrated magnesia-alumina bricks and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104973877A (en) | Castable with favorable sintering properties | |
| CN104193354B (en) | A kind of tundish permanent layer mould material and preparation method thereof | |
| CN101423401B (en) | Composite combining corundum based refractory materials | |
| CN102101784A (en) | Lightweight reformed main iron runner pouring material | |
| CN103992126B (en) | Method for preparing tabular corundum brick for working lining of carbon-free steel ladle | |
| CN101805198B (en) | Mullite steel fiber castable | |
| CN105036768A (en) | High-performance castable | |
| CN104326755B (en) | A kind of low heat conduction mullite molten tin bath combination top cover brick | |
| CN103145435B (en) | Vanadium iron slag runner castable | |
| CN105622121B (en) | Low-carbon magnesia-alumina-carbon brick of Ceramic bond and preparation method thereof under a kind of high temperature | |
| CN103121850B (en) | Non-cement-bound corundum fabricated part and production method thereof | |
| CN102701763A (en) | Low-aluminum sintered alumina-silica refractory material and preparation method thereof | |
| CN104086192A (en) | Lightweight insulated calcium hexaluminate castable | |
| CN108276017B (en) | It is a kind of using natural minerals be raw material corundum-silicon carbide whisker composite ceramic material and preparation method thereof | |
| CN105130461A (en) | Anti-hydration magnesia castable | |
| CN105130473A (en) | Permanent layer casting material containing synthetic forsterite | |
| CN104987093A (en) | Preparing method for high-performance pouring material | |
| CN104557078A (en) | High-density thermal-shock-resistant refractory castable for hot metal ladle | |
| CN107986798B (en) | Preparation method of transfer ladle composite lining material for casting | |
| CN104276831B (en) | A kind of method preparing calcium oxide carbon brick | |
| CN104987095A (en) | Preparation method of magnesian castable with function of hydration resistance | |
| CN104311059A (en) | Heat-insulating refractory castable containing fireproof hollow spheres | |
| CN102850061A (en) | Non-sintered corundum runner brick | |
| CN104150922B (en) | forsterite coating | |
| CN102838362B (en) | Chamotte for rapidly replacing water feeding opening of steel ladle in online manner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151209 |
|
| WD01 | Invention patent application deemed withdrawn after publication |