CN1059414C - Self-flow hot patching material and producing method thereof - Google Patents
Self-flow hot patching material and producing method thereof Download PDFInfo
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- CN1059414C CN1059414C CN97100784A CN97100784A CN1059414C CN 1059414 C CN1059414 C CN 1059414C CN 97100784 A CN97100784 A CN 97100784A CN 97100784 A CN97100784 A CN 97100784A CN 1059414 C CN1059414 C CN 1059414C
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- phenolic resin
- carbon
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Abstract
The present invention discloses a self flow hot patching material and a manufacture method thereof. The self flow hot patching material belongs to the adventitious form refractory clay material with alumina as base materials, and is used for the hot patching of blast furnace iron tap channels. Finished products comprise 60 to 70 wt% of Al2O3, 8 to 12 wt% of SiC, 2 to 6 wt% of C, 10 to 25 wt% of liquid phenolic resin binding agents and impurities as the rest, wherein the binding agents are prepared from 25 to 50 wt% of thermoplastic non-water-soluble phenolic resin and 50 to 75 wt% of organic solutions. The clay material has high temperature autoflowability. When thrown into regions to be patched, the clay material can automatically enter deep parts of cracks to finish the patching. The clay material has the advantages of high sintering speed and strong binding force with basal bodies.
Description
The present invention relates to a kind of self-flow hot patching material and manufacture method thereof, belonging to the aluminum oxide is the indefinite form refractory clay of base-material, is suitable for use as with AL
2O
3-SiC-C fire resistant materials is the hot patching of the various elevated temperature vessels, particularly blast furnace iron outlet groove of liner.
Disclose a kind of " blast furnace iron outlet groove Gunning refractory " among the clear 54-56619 of Japanese Patent, contained 5-15%SiC, 2-10%SiO in the Gunning refractory finished product
2Surplus is AL
2O
3And unavoidable impurities, it is characterized in that: this material finished product is added with the typing of 1-10% or agraphitic carbon at home and abroad as additive, to improve anti-molten damage.Add the mixing one-tenth refractory clay of water during use, carry out spray repair with spray repairing machine.Existing problem is: Gunning refractory self does not have mobile, can not enter the depths, crack.Institute's water content in the pug produces water vapour formation and tears power open when high-temperature service, cause with the protocorm bonding force low.Because moisture in the pug, also cause sintering time long, void content height in the material behind the sintering, intensity be low, not anti-shortcoming such as to wash away, and once repairs work-ing life (iron influx) and has only about 600 tons.In addition, need special-purpose spray repair equipment, the resilience that produces during the spray repair operation causes consumption of materials big.
The purpose of this invention is to provide a kind of good high-temperature auto flowability that has, strong with protocorm material bonding force, sintering velocity is fast, can increase substantially the self-flow hot patching material and the manufacture method thereof in work-ing life.
The objective of the invention is to realize by following solution.
A kind of self-flow hot patching material contains (weight): 60-70AL in the finished product pug
2O
3, 8-12%SiC, 2-6%C, 10-25% the liquid phenolic resin wedding agent; The composition of wedding agent (weight) is: the thermoplastic of 25-50%, water-insoluble resol, and the organic solution of 50-75%, this organic solution can be any one in ethanol, propyl alcohol, glycerol and the ethylene glycol; In the self-flow hot patching material unit weight finished product pug, be added with the organic additive of 1-5% (weight) outward, this organic matter additive is any one in high molecular polymer powder, polyethylene staple fibre, polypropene staple and the stearic acid powder.Compressive strength after this self-flow hot patching material burns till is 30-40MPa, folding strength 1.8-2.4MPa in the time of 1400 ℃.
This self-flow hot patching material is with AL
2O
3, SiC, C fire resistant materials be that aggregate is made, its ingredient groups becomes:
8mm-0.21mm aluminium vanadine 45-68% (weight) or electric smelting or sintered alumina 40-60% (weight)
The aluminium vanadine 11-23% (weight) of≤0.21mm or electric smelting or sintered alumina 10-22% (weight)
8mm-0.21mm industrial silicon carbide 1-6% (weight)
The industrial silicon carbide 3-10% (weight) of≤0.21mm
8mm-0.21mm typing or agraphitic carbon 0-4% (weight)
The typing of≤0.21mm or agraphitic carbon 2-6% (weight)
The liquid phenolic resin wedding agent consists of the thermoplastic of 25-50% (weight), water-insoluble resol, the organic solution of 50-75% (weight), this organic solution can be any one in ethanol, propyl alcohol, glycerol and the ethylene glycol, wedding agent add-on 10-25% (weight);
The outer organic additive that adds 1-5% (weight), this organic matter additive is any one in high molecular polymer powder, polyethylene staple fibre, polypropene staple and the stearic acid powder;
Above-mentioned batch mixes is even, add that liquid phenolic resin wedding agent and organic additive are mixing to become pug, with inflammable plastics bag distribution packaging.
Typing carbon in the above-mentioned batching or agraphitic carbon add respectively by two kinds of carbon contents:
The combination of any 1-3 kind in the crystalline flake graphite of carbon content 〉=95%, artificial electrode graphite or the coke: the 0-3% of 8mm-0.21mm (weight), the 1-3% of≤0.21mm (weight).
The 0-3% of the pitch of carbon content 〉=70%: 8mm-0.21mm (weight), the 1-5% of≤0.21mm (weight).
The wedding agent liquid phenolic resin has thermoplasticity, can rise with temperature and improve plasticity, strengthens mobile.Resol raises with temperature, about 350-600 ℃ of decomposition, so sintering time is short, can finish sintering in 15-30 minute.After resol decomposed, its residual carbon content can reach 50-60%, at high temperature forms the carbochain network structure, improved sintering strength and antiscour, corrosion resistance.Evidence: when the add-on of liquid phenolic resin wedding agent was controlled at 10-25%, the hot yield point value of self-flow hot patching material reached 200-280mm.Make this hot-patch material finish patch work from being advanced into the depths, crack under the condition of high temperature.But when the add-on of liquid phenolic resin wedding agent less than 10% the time, the hot yield point value of this repair material will drop to below the 180mm, can not satisfy the requirement of thermal-state artesian repairing.When add-on greater than 25% the time, though its hot yield point value can meet the demands, because of the minimizing of aggregate, the intensity of repair material slackens thereupon, compressive strength is reduced to below the 30MPa, influences its wearing quality.The measuring method of hot yield point value: (＞400 * 400 * 30mm) heat temperature raisings to 1000 ℃ are incubated 1 hour, drop into the 1kg pug, measure 2 above diameters when losing flowability, and the meter of averaging is made the hot yield point value of material with a refractory brick flat board.
Organic additives such as high molecular polymer powder, polyethylene staple fibre, polypropene staple, stearic acid powder, when having normal temperature in organic solvent the character of insoluble or indissoluble, and light specific gravity, can adsorb a large amount of liquid phenolic resin wedding agents, solid powder material is formed buoyancy, improve the viscosity of material under the normal temperature.Thereby the adding of the organic additive of this class, the effect with the solid-liquid separation of preventing guarantees that the present invention contains the liquid refractory clay, can be because of in keeping, transportation solid-liquid separation not taking place, and reduce the flowability affects result of use.In addition, this class material also has the character of fusing rapidly under the high temperature, helps to improve the temperature flowing of hot-patch material of the present invention.
Typing in the batching or agraphitic carbon add respectively by two kinds of carbon contents, its objective is to make full use of its characteristic separately.The flaky graphite of carbon content＞95%, artificial electrode graphite and coke have good anti-molten slag aggressiveness, the work-ing life that helps to improve hot-patch material.And the lower pitch of carbon content has good thermoplastic, helps to improve the temperature flowing of hot-patch material.
The advantage that the present invention is compared with prior art had is: refractory clay of the present invention has the high temperature auto flowability, as long as pug is thrown to needing to repair the position, can be advanced into the depths, crack certainly, finishes repairing.Do not need any equipment, easy to operate, materials consumption is few.Material itself is water content not, the power of tearing open that the exclusion evaporation forms, and strong with basal body binding force, sintering velocity is fast, repairs the back and can come into operation in 15-30 minute.Simultaneously, compressive strength, folding strength, antiscour and the erosional competency Gunning refractory in compared to prior art all increases, and work-ing life, (promptly repairing once back iron influx at the swinging flow jet mouth) can reach the 3000-4000 ton.In addition, because the adding of organic additive has prevented the generation of solid-liquid separation phenomenon effectively, preserve and do not influence its result of use but make the present invention contain the liquid pug long period.
Embodiment 1:
Batching is formed:
8mm-0.21mm contain AL
2O
3〉=88% aluminium vanadine 60% (weight)
≤ 0.21mm contains AL
2O
3〉=88% aluminium vanadine 13% (weight)
8mm-0.21mm contain the industrial silicon carbide 3% (weight) of SiC 〉=95%
≤ 0.21mm contains the industrial silicon carbide 8% (weight) of SiC 〉=95%
The artificial electrode graphite 2% (weight) of the carbon content of≤0.21mm 〉=95%
The pitch 4% (weight) of the carbon content of≤0.21mm 〉=70%
Wedding agent: the thermoplastic of 25% (weight), the composite liquid phenolic resin of water-insoluble resol and 75% (weight) ethylene glycol, add-on 10% (weight).
The polyethylene staple fibre (adding) 5% (weight) of organic additive: length 3-4mm, diameter 25-35mm.
Manufacturing process: above-mentioned batch mixes is even, add that liquid phenolic resin wedding agent and organic additive are mixing to become pug, with inflammable plastics bag distribution packaging.The main physicochemical property of product is seen attached list.
Embodiment 2:
Batching is formed:
8mm-0.21mm contain Al
2O
3〉=98% fused alumina 50% (weight)
≤ 0.21mm contains Al
2O
3〉=98% fused alumina 17% (weight)
8mm-0.21mm contain the industrial silicon carbide 3% (weight) of SiC 〉=95%
≤ 0.21mm contains the industrial silicon carbide 7% (weight) of SiC 〉=95%
8mm-0.21mm the crystalline flake graphite 1% (weight) of carbon content 〉=95%
The crystalline flake graphite 1% (weight) of≤0.21mm carbon content 〉=95%
8mm-0.21mm the pitch 1% (weight) of carbon content＞70%
The pitch 3% (weight) of≤0.21mm carbon content＞70%
Wedding agent: the ethanol of the thermoplastic of 35% (weight), water-insoluble resol and 65% (weight) is mixed into liquid phenolic resin, add-on 18% (weight)
Organic additive: high molecular polymer powder (adding) 2.5% (weight).
Manufacturing process is with embodiment 1.The main physicochemical property of product is seen attached list.
Embodiment 3:
Batching is formed:
8mm-0.21mm contain Al
2O
3〉=98% sintered alumina 42% (weight)
≤ 0.21mm contains Al
2O
3〉=98% sintered alumina 20% (weight)
8mm-0.21mm contain the industrial silicon carbide 2% (weight) of SiC 〉=95%
≤ 0.21mm contains the industrial silicon carbide 6.5% (weight) of SiC 〉=95%
The coke 1.5% (weight) of≤0.21mm carbon content 〉=95%
The pitch 3% (weight) of≤0.21mm carbon content 〉=70%
Wedding agent: the propyl alcohol of the thermoplastic of 50% (weight), water-insoluble resol and 50% (weight) is mixed into liquid phenolic resin, add-on 25% (weight)
Organic additive: stearic acid powder (adding) 1% (weight).
Manufacturing process is with embodiment 1, and the main physicochemical property of product is seen attached list.
During repairing, need repair surface, position residue earlier and dispose.At high temperature will repair the strip plastic packaging bag and throw to needing to repair the position, repair material is finished repairing from being advanced into the depths, crack, through 15-30 minute sintering, can come into operation.
Claims (3)
1. a self-flow hot patching material is characterized in that: contain (weight): 60-70AL in the finished product pug
2O
3, 8-12%SiC, 2-6%C, 10-25% the liquid phenolic resin wedding agent; The composition of wedding agent (weight) is: the thermoplastic of 25-50%, water-insoluble resol, and the organic solution of 50-75%, this organic solution can be any one in ethanol, propyl alcohol, glycerol and the ethylene glycol; In the unit weight finished product pug, be added with the organic additive of 1-5% (weight) outward, this organic matter additive is any one in high molecular polymer powder, polyethylene staple fibre, polypropene staple and the stearic acid powder.
2. the manufacture method of a self-flow hot patching material as claimed in claim 1 is with AL
2O
3, SiC, C fire resistant materials be aggregate, it is characterized in that:
Ingredient groups becomes:
8mm-0.21mm aluminium vanadine 45-68% (weight) or electric smelting or sintered alumina 40-60% (weight)
The aluminium vanadine 11-23% (weight) of≤0.21mm or electric smelting or sintered alumina 10-22% (weight)
8mm-0.21mm industrial silicon carbide 1-6% (weight)
The industrial silicon carbide 3-10% (weight) of≤0.21mm
8mm-0.21mm typing or agraphitic carbon 0-4% (weight)
The typing of≤0.21mm or agraphitic carbon 2-6% (weight)
The liquid phenolic resin wedding agent consists of the thermoplastic of 25-50% (weight), water-insoluble resol, the organic solution of 50-75% (weight), this organic solution can be any one in ethanol, propyl alcohol, glycerol and the ethylene glycol, wedding agent add-on 10-25% (weight);
The outer organic additive that adds 1-5% (weight), this organic matter additive is any one in high molecular polymer powder, polyethylene staple fibre, polypropene staple and the stearic acid powder;
Above-mentioned batch mixes is even, add that liquid phenolic resin wedding agent and organic additive are mixing to become pug, with inflammable plastics bag distribution packaging.
3. manufacture method according to claim 2 is characterized in that: typing carbon in the described batching or agraphitic carbon add respectively by two kinds of carbon contents:
The combination of any 1-3 kind in the crystalline flake graphite of carbon content 〉=95%, artificial electrode graphite or the coke: the 0-3% of 8mm-0.21mm (weight), the 1-3% of≤0.21mm (weight)
The 0-3% of the pitch of carbon content 〉=70%: 8mm-0.21mm (weight), the 1-5% of≤0.21mm (weight).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97100784A CN1059414C (en) | 1997-02-27 | 1997-02-27 | Self-flow hot patching material and producing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97100784A CN1059414C (en) | 1997-02-27 | 1997-02-27 | Self-flow hot patching material and producing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1160030A CN1160030A (en) | 1997-09-24 |
| CN1059414C true CN1059414C (en) | 2000-12-13 |
Family
ID=5165318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97100784A Expired - Fee Related CN1059414C (en) | 1997-02-27 | 1997-02-27 | Self-flow hot patching material and producing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1059414C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398494C (en) * | 2005-02-28 | 2008-07-02 | 宝山钢铁股份有限公司 | Fire clay for replacement of tuyere brick in converter |
| CN102070350A (en) * | 2010-09-03 | 2011-05-25 | 吴江市液铸液压件铸造有限公司 | Refinishing paint for rear furnace of foundry furnace |
| CN101955360B (en) * | 2010-09-21 | 2012-12-26 | 上海盛江特种耐火材料有限公司 | Blast-furnace high-alumina press-in material and application thereof |
| CN102329126B (en) * | 2011-07-15 | 2012-12-05 | 郑州大学 | In-situ formed beta-Sialon combined corundum prefabricated member and production method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5456619A (en) * | 1977-10-13 | 1979-05-07 | Tokyo Yogyo Kk | Spray repairing material for blast furnace tapping spout |
| CN1033985A (en) * | 1987-12-31 | 1989-07-19 | 冶金部洛阳耐火材料研究所 | The carbon containing unshape refractory |
| CN1100707A (en) * | 1993-09-22 | 1995-03-29 | 冶金工业部洛阳耐火材料研究院 | Method for bonding amorphous refractory brick material with ambient temp. solidifying resin |
| CN1103634A (en) * | 1993-12-08 | 1995-06-14 | 原森 | Compound alumina material for deposit without cement |
-
1997
- 1997-02-27 CN CN97100784A patent/CN1059414C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5456619A (en) * | 1977-10-13 | 1979-05-07 | Tokyo Yogyo Kk | Spray repairing material for blast furnace tapping spout |
| CN1033985A (en) * | 1987-12-31 | 1989-07-19 | 冶金部洛阳耐火材料研究所 | The carbon containing unshape refractory |
| CN1100707A (en) * | 1993-09-22 | 1995-03-29 | 冶金工业部洛阳耐火材料研究院 | Method for bonding amorphous refractory brick material with ambient temp. solidifying resin |
| CN1103634A (en) * | 1993-12-08 | 1995-06-14 | 原森 | Compound alumina material for deposit without cement |
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| Publication number | Publication date |
|---|---|
| CN1160030A (en) | 1997-09-24 |
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Owner name: SHANGHAI BAO STEEL GROUP IRON AND STEEL CO LTD; SH Free format text: FORMER NAME OR ADDRESS: BAOSHAN STEEL GROUP IRON AND STEEL CO LTD; SHANGHAI BAOJIUHE REFRACTORY MATERIALS CO., LTD. Owner name: BAOSHAN IRON & STEEL CO., LTD.; SHANGHAI BAOJIUHE Free format text: FORMER NAME OR ADDRESS: SHANGHAI BAO STEEL GROUP IRON AND STEEL CO LTD; SHANGHAI BAOJIUHE REFRACTORY MATERIALS CO., LTD. |
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Address after: 201900, Fujin Road, Shanghai, Baoshan District orchard Patentee after: BAOSHAN IRON & STEEL Co.,Ltd. Patentee after: SHANGHAI BAOJIUHE REFRACTORY MATERIAL CO.,LTD. Address before: 200122 No. 370 Pu circuit, Shanghai, Pudong New Area Patentee before: BAOSHAN IRON & STEEL CO.,LTD. Patentee before: SHANGHAI BAOJIUHE REFRACTORY MATERIAL CO.,LTD. Address after: 200122 No. 370 Pu circuit, Shanghai, Pudong New Area Patentee after: BAOSHAN IRON & STEEL CO.,LTD. Patentee after: SHANGHAI BAOJIUHE REFRACTORY MATERIAL CO.,LTD. Address before: 201900 No. 1, Middle Road, Baoshan District, Shanghai Patentee before: Baosteel Group Corporation Patentee before: SHANGHAI BAOJIUHE REFRACTORY MATERIAL CO.,LTD. |
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Granted publication date: 20001213 Termination date: 20130227 |