CN101337820B - Locked coil rope fire-resistant material for continuous casting tundish crystallizer dummy ingot head and method for preparing same - Google Patents
Locked coil rope fire-resistant material for continuous casting tundish crystallizer dummy ingot head and method for preparing same Download PDFInfo
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- CN101337820B CN101337820B CN2008100417688A CN200810041768A CN101337820B CN 101337820 B CN101337820 B CN 101337820B CN 2008100417688 A CN2008100417688 A CN 2008100417688A CN 200810041768 A CN200810041768 A CN 200810041768A CN 101337820 B CN101337820 B CN 101337820B
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Abstract
The invention provides a continuous casting tundish crystallizer starter head used aluminium carbon sealing cord fireproof material and a preparation method thereof. The sealing cord is made of a flexible fireproof material, and is extruded into a cord which ranges from 15mm to 25mm in diameter and from 1200 to 1500mm in length. The fireproof material consists of 40 to 70 percent of alumina, 1 to 8 percent of carbon, 20 to 50 percent of liquefied phenolic resin binder and 1 to 5 percent of an organic addition agent. The fireproof material is an aluminium and carbon flexible fireproof material, which brings convenience to operation and improves the sealability; the slag resistance is improved; the material can resist the soakage of molten steel, which prevents molten steel from seeping and a starter head from being bonded too tightly during casting of a tundish crystallizer.
Description
Technical field
The present invention relates to make steel industry, belong to continuous casting of molten steel tundish mold specifically and open sealing ingot-guiding head and a kind of rope form of molten steel in mold when watering, soft shape refractory materials.
Background technology
Like product has one type in the market, is siliceous paper fiber ropy.This product is owing to be siliceous paper fiber, and fine-fibered flies upward when the operation construction, sucks harmful; And refractoriness is low, open when watering occur easily oozing, bleed-out water and use the back molten steel to adhere to the ingot-guiding head phenomenon.
Summary of the invention
To the deficiency that prior art exists, the purpose of this invention is to provide a kind of sealing cord refractory materials that is used for continuous casting tundish mold sealing ingot-guiding head.Its easy construction, simple does not have fine-fibered, dust from flying, and human body is safe from harm; Because it is soft shape refractory materials, construction good airproof performance, refractoriness height, use back do not have adhesion phenomenon and ooze with ingot-guiding head, bleed-out water phenomenon simultaneously.
The technical scheme of taking for the realization above-mentioned purpose is following:
A kind of continuous casting tundish mold ingot-guiding head is used the sealing cord refractory materials, and the aluminum oxide by 0～70%, 1～8% carbon, 20～50% liquid phenolic resin wedding agent and 1～5% organic additive are formed.
The composition of said aluminum oxide and weight percent are:
0.1 the bauxitic clay of～0.21mm or fused alumina or sintered alumina 15～35%
0.074mm following bauxitic clay or fused alumina or sintered alumina 30～50%
0.074mm following soft clay 20～35%;
Said organic additive is the high molecular polymer powder, comprises polyethylene fiber, polypropylene fiber and Triple Pressed Stearic Acid powder etc.
Said carbon is selected one and is selected for use from typing carbon and indefinite form carbon, state the carbon of finalizing the design and be in the crystalline flake graphite of weight percentage >=95% of carbon, artificial electrode graphite or the coke any one, and granularity is below the 0.15mm.Indefinite form carbon is the pitch of weight percentage >=70% of carbon, and granularity is below the 0.15mm.
The preparation method of sealing cord refractory materials comprises the steps:
1), aluminum oxide and carbon are mixed by proportioning;
2), in above-mentioned batching, add the organic additive powder again, stir;
3), add the liquid phenolic resin wedding agent at last; Through the mixed stone roller of forced action type muller through 60～80 minutes; Through vacuumizing mud extruder, extruding diameter is that 15～25mm, length are the rope form refractory materials of 1200～1500mm, requires to preserve under the normal temperature still can use in 1 year.
The material that the present invention adopted is aluminium-carbonaceous, soft shape refractory materials, therefore than currently available products refractoriness height, good airproof performance, do not have the fine-fibered dust from flying.And be convenient to constructing operation, improve sealing property; Improving slag resistance, anti-molten steel soaks into, avoids the tundish mold to occur oozing, bleed-out water, adhere to too tight phenomenon with ingot-guiding head opening when watering.
Embodiment
How further specify the present invention below in conjunction with specific embodiment realizes:
Embodiment 1
Take by weighing the bauxitic clay 100kg of 0.1mm, the bauxitic clay 160kg of 0.07mm, the soft clay 100kg of 0.05mm; Take by weighing the crystalline flake graphite 50kg of weight percentage >=95% of 0.1mm carbon again; Above-mentioned raw materials is mixed, in the above-mentioned batching that mixes, add polyethylene fiber 50kg again, stir; Add liquid phenolic resin wedding agent 500kg at last; Through the mixed stone roller of forced action type muller through 60～80 minutes, through vacuumizing mud extruder, extruding diameter is that 15～25mm, length are the rope form refractory materials of 1200～1500mm.
Embodiment 2
Take by weighing the sintered alumina 140kg of 0.2mm, the fused alumina 350kg of 0.05mm, the soft clay 210kg of 0.05mm; Take by weighing the artificial electrode graphite 80kg of weight percentage >=95% of 0.5mm carbon again; Above-mentioned raw materials is mixed, in the above-mentioned batching that mixes, add polypropylene fiber 20kg again, stir; Add liquid phenolic resin wedding agent 200kg at last; Through the mixed stone roller of forced action type muller through 60～80 minutes, through vacuumizing mud extruder, extruding diameter is that 15～25mm, length are the rope form refractory materials of 1200～1500mm.
Embodiment 3
Take by weighing the bauxitic clay 75kg of 0.05mm, the fused alumina 225kg of 0.01mm, the soft clay 150kg of 0.01mm; Take by weighing the pitch 60kg of weight percentage >=70% of 0.12mm carbon again; Above-mentioned raw materials is mixed, in the above-mentioned batching that mixes, add Triple Pressed Stearic Acid powder 40kg again, stir; Add liquid phenolic resin wedding agent 400kg at last; Through the mixed stone roller of forced action type muller,, extrude diameter and be that 15～25mm, length are the rope form refractory materials of 1200～1500mm through vacuumizing mud extruder through 60～80 minutes.
At present this continuous casting tundish mold ingot-guiding head use sealing cord, and the extraordinary Iron And Steel Co., Ltd of emerging ?continuous casting blooms mold carries out sample and tries out in Jiangyin always since in September, 2007.Good airproof performance, operation do not have do not have adhesion phenomenon with ingot-guiding head after fine-fibered, dust from flying, the use during use.
Claims (6)
1. a continuous casting tundish mold ingot-guiding head is used the sealing cord refractory materials; It is characterized in that: the sealing cord refractory materials is made up of 40～70% aluminum oxide, 1 ~ 8% carbon, 20～50% liquid phenolic resin wedding agent and 1～5% organic additive, and the composition of said aluminum oxide and weight percent are:
0.1 the bauxitic clay of～0.21mm or fused alumina or sintered alumina 15～35%
0.074mm following bauxitic clay or fused alumina or sintered alumina 30～50%
0.074mm following soft clay 20～35%;
Said organic additive is the high molecular polymer powder.
2. a kind of continuous casting tundish mold ingot-guiding head according to claim 1 is used the sealing cord refractory materials, and it is characterized in that: said high molecular polymer powder is any one in polyethylene fiber, polypropylene fiber and the Triple Pressed Stearic Acid powder.
3. a kind of continuous casting tundish mold ingot-guiding head according to claim 1 is used the sealing cord refractory materials, it is characterized in that: a kind of in typing carbon or the indefinite form carbon of said carbon.
4. a kind of continuous casting tundish mold ingot-guiding head according to claim 3 is used the sealing cord refractory materials; It is characterized in that: any one in the crystalline flake graphite of weight percentage >=95% that said typing carbon is carbon, artificial electrode graphite or the coke, granularity are below the 0.15mm.
5. a kind of continuous casting tundish mold ingot-guiding head according to claim 3 is used the sealing cord refractory materials, and it is characterized in that: the pitch of weight percentage >=70% that said indefinite form carbon is carbon, granularity are below the 0.15mm.
6. according to the preparation method of any said sealing cord refractory materials of right in the claim 1～5, comprise the steps:
1), aluminum oxide and carbon are mixed by proportioning;
2), in the mix of above-mentioned aluminum oxide and carbon, add the organic additive powder again, stir;
3) add the liquid phenolic resin wedding agent, at last, through the mixed stone roller of forced action type muller through 60～80 minutes, through vacuumizing mud extruder, the rope form refractory materials of extruding;
The composition of said aluminum oxide and weight percent are:
0.1 the bauxitic clay of～0.21mm or fused alumina or sintered alumina 15～35%
0.074mm following bauxitic clay or fused alumina or sintered alumina 30～50%
0.074mm following soft clay 20～35%;
Said organic additive powder is the high molecular polymer powder, and the high molecular polymer powder is any one in polyethylene fiber, polypropylene fiber and the Triple Pressed Stearic Acid powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100417688A CN101337820B (en) | 2008-08-15 | 2008-08-15 | Locked coil rope fire-resistant material for continuous casting tundish crystallizer dummy ingot head and method for preparing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100417688A CN101337820B (en) | 2008-08-15 | 2008-08-15 | Locked coil rope fire-resistant material for continuous casting tundish crystallizer dummy ingot head and method for preparing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101337820A CN101337820A (en) | 2009-01-07 |
| CN101337820B true CN101337820B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100417688A Active CN101337820B (en) | 2008-08-15 | 2008-08-15 | Locked coil rope fire-resistant material for continuous casting tundish crystallizer dummy ingot head and method for preparing same |
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| CN (1) | CN101337820B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102344289A (en) * | 2010-10-11 | 2012-02-08 | 青岛正望钢水控制股份有限公司 | Fireproof clay sealing ring |
| CN103130519A (en) * | 2013-03-15 | 2013-06-05 | 金川集团股份有限公司 | Material for sealing electroslag furnace crystallizer and bottom water box and preparation method thereof |
| CN110251852A (en) * | 2019-05-12 | 2019-09-20 | 江苏曼杰克有限公司 | A kind of fire-proof safety line |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2217478Y (en) * | 1995-02-24 | 1996-01-17 | 河南省安阳钢铁公司 | Sealing-sleeve for sealing the gap between crystallizer and dummy bar |
| CN1484557A (en) * | 2000-11-09 | 2004-03-24 | Sms迪马格股份公司 | Device and method for continuously casting a metal strip in the casting gap between a pair of rollers which can move in a rotating manner and |
| CN1654431A (en) * | 2005-01-13 | 2005-08-17 | 武汉钢铁(集团)公司 | Fireproof materials for pressed repairing and method for preparing same |
| CN1727309A (en) * | 2004-07-28 | 2006-02-01 | 宝山钢铁股份有限公司 | Refractory material in use for continuous casting and usage |
-
2008
- 2008-08-15 CN CN2008100417688A patent/CN101337820B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2217478Y (en) * | 1995-02-24 | 1996-01-17 | 河南省安阳钢铁公司 | Sealing-sleeve for sealing the gap between crystallizer and dummy bar |
| CN1484557A (en) * | 2000-11-09 | 2004-03-24 | Sms迪马格股份公司 | Device and method for continuously casting a metal strip in the casting gap between a pair of rollers which can move in a rotating manner and |
| CN1727309A (en) * | 2004-07-28 | 2006-02-01 | 宝山钢铁股份有限公司 | Refractory material in use for continuous casting and usage |
| CN1654431A (en) * | 2005-01-13 | 2005-08-17 | 武汉钢铁(集团)公司 | Fireproof materials for pressed repairing and method for preparing same |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平6-219829A 1994.08.09 |
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| CN101337820A (en) | 2009-01-07 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20090220 Address after: Postal code 2319, Fujin Road, Shanghai, Baoshan District: 201901 Applicant after: Shanghai Bao Ming Refractories Co., Ltd. Co-applicant after: Baoxiang Fire-resistant Materials Co., Ltd., Shanghai Address before: Postal code 1628, Fujin Road, Shanghai, Baoshan District: 201901 Applicant before: Baoxiang Fire-resistant Materials Co., Ltd., Shanghai |
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| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI BAOMING FIRERESISTING MATERIALS CO., LTD. Free format text: FORMER OWNER: SHANGHAI BAOXIANG FIRERESISTING MATERIALS CO., LTD. Effective date: 20090220 |
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Effective date of registration: 20090710 Address after: Postal code 2319, Fujin Road, Shanghai, Baoshan District: 201901 Applicant after: Shanghai Baoming Refractory Materials Co.,Ltd. Address before: Postal code 2319, Fujin Road, Shanghai, Baoshan District: 201901 Applicant before: Shanghai Bao Ming Refractories Co., Ltd. Co-applicant before: Baoxiang Fire-resistant Materials Co., Ltd., Shanghai |
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