CN1075307A - Aluminium carbon integrated filler rod - Google Patents
Aluminium carbon integrated filler rod Download PDFInfo
- Publication number
- CN1075307A CN1075307A CN 92106398 CN92106398A CN1075307A CN 1075307 A CN1075307 A CN 1075307A CN 92106398 CN92106398 CN 92106398 CN 92106398 A CN92106398 A CN 92106398A CN 1075307 A CN1075307 A CN 1075307A
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- caput
- barred body
- alumina
- high purity
- purity graphite
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Abstract
The invention belongs to the continuous casting of iron and steel refractory materials, the major technique characteristics are, caput is different with the aggregate of barred body, and caput is an aggregate with fused white corundum and high purity graphite, barred body is an aggregate with electric smelting high alumina bauxite and high purity graphite, makes wedding agent with aqueous and solid phenolic resin.Stopper of the present invention, cost reduces by 20%, withstand voltage increase in temperature.
Description
The invention belongs to iron and steel continuous casting refractory materials.
In continuous casting technique, the steel flow output for the control ladle generally adopts aluminium carbon integrated filler rod.Above-mentioned aluminium carbon integrated filler rod, be fire resistive material product, many at present is raw material with corundum, graphite, is additive with carborundum powder and silica flour, with aqueous resol is wedding agent, through batching, mixing, hydrostatic pressing, burn till, spray operation such as inoxidzable coating and make.This integral stopper rod still has two place's deficiencies, the one, need to consume a large amount of expensive fused white corundums, in fact, only need the white fused alumina material in stopper head position, aggregate then can be made by price lower other high aluminium materials and graphite in the barred body position, still, if the aggregate of caput and barred body is different, then coefficient of thermal expansion is also different under the high temperature, be difficult to caput and barred body securely sintering be in the same place.Just because of above-mentioned critical technological point, causing at present, each producer can only produce the integral stopper rod of making aggregate merely with corundum and graphite; Second weak point be, manyly at present makes wedding agent with aqueous resol, and stopper intensity is undesirable, normal in the use barred body fracture takes place.
The objective of the invention is, a kind of above-mentioned 2 insufficient integral stopper rod that overcome are provided, this kind stopper caput is made aggregate with corundum and graphite, and barred body is an aggregate with high aluminium material and graphite, and the compressive strength of this kind stopper increases in addition.
Aluminium carbon integrated filler rod of the present invention, with aggregate, additive, wedding agent is a raw material, through batching, mixing, hydrostatic pressing, burn till, shaping, operations such as spraying inoxidzable coating are made, caput is an aggregate with fused white corundum and high purity graphite, carborundum powder and silica flour are additive, the major technique characteristics are, the barred body aggregate is different with the caput aggregate, barred body is made aggregate with electric smelting high alumina bauxite and high purity graphite, caput and barred body are all made wedding agent with aqueous resol and solid phenolic resin, the caput prescription is (weight %): fused white corundum 55-75, high purity graphite 25-15, carborundum powder and silica flour 5-10, aqueous resol 4-6, solid phenolic resin 1-4 ‰, the barred body prescription is (weight %): electric smelting high alumina bauxite 55-75, high purity graphite 25-15, carborundum powder and silica flour 5-10, aqueous resol 4-6, solid phenolic resin 1-4 ‰.
For guaranteeing the refractoriness of integral stopper rod, the alumina content of described fused white corundum is more preferably greater than 96%, and ferric oxide content is less than 0.5%.
Described high purity graphite is preferably flaky graphite, and its fixed carbon content is greater than 98%, and ash is less than 2%.
The alumina content of above-mentioned electric smelting high alumina bauxite is more preferably greater than 98%.
Be sintering character and the microstructure of improving goods, in caput and the barred body prescription, the αYang Hualv that preferably adds 1-2% is again made additive.
Integral stopper rod of the present invention, because barred body adopts high alumina bauxite to replace fused corundom, cost reduces by 20%, because the coefficient of thermal expansion of caput and barred body prescription is approximate, so it is fine to burn till quality, do not rupture in the use, make wedding agent owing to add solid phenolic resin, the compressive strength of rod is greater than 30MPa.
Be specific embodiment below, details are as follows with the present invention in conjunction with this embodiment: the caput prescription: fused white corundum 60%, flaky graphite 25%, carborundum powder 4%, silica flour 4%, αYang Hualv micro mist 1%, aqueous resol 5.6%, solid phenol-formaldehyde resin 4 ‰.The barred body prescription, electric smelting high alumina bauxite 60%, flaky graphite 25%, carborundum powder 4%, silica flour 4%, αYang Hualv micro mist 1%, aqueous resol 5.6%, solid phenolic resin ‰.Above-mentioned two kinds of materials are used for moulding after mixing 30 minutes in powerful mixing roll respectively, earlier with in the barred body raw material injection model that mixes, the caput raw material reinjects, the back is at hydrostatic pressing machine internal shaping, and pressure is 150-300MPa, and the dwell time is 3 minutes, blank drying after the moulding is handled into tunnel furnace, burnt till under 1300 ℃ 4 hours, the work in-process after burning till are after the mechanical cutting shaping, and its outside surface sprays the inoxidzable coating of 0.1-0.5 mm thick.
Accompanying drawing 1 is the front view of stopper of the present invention.1 is that caput, 2 is barred body among the figure.
Claims (8)
1, a kind of aluminium carbon integrated filler rod, its caput is made aggregate with fused white corundum and high purity graphite, and carborundum powder and silica flour are additive, it is characterized in that:
The A barred body is made raw material with electric smelting high alumina bauxite and high purity graphite, and caput and barred body are all made wedding agent with aqueous resol and solid phenolic resin,
B caput prescription is (weight %): fused white corundum 55-75, and high purity graphite 25-15, carborundum powder and silica flour 5-10, aqueous resol 4-6, solid phenolic resin 1-4 ‰,
C barred body prescription is (weight %): electric smelting high alumina bauxite 55-75, high purity graphite 25-15, carborundum powder and silica flour 5-10, aqueous resol 4-6, solid phenolic resin 1-4 ‰.
According to the described stopper of claim 1, it is characterized in that 2, the alumina content of described fused white corundum is greater than 96%, ferric oxide content is less than 0.5%.
According to claim 1 or 2 described stoppers, it is characterized in that 3, described high purity graphite is a flaky graphite, its fixed carbon content is greater than 98%, and ash is less than 2%.
According to claim 1 or 2 described stoppers, it is characterized in that 4, the alumina content of described electric smelting high alumina bauxite is greater than 98%.
According to the described stopper of claim 3, it is characterized in that 5, the alumina content of described electric smelting high alumina bauxite is greater than 98%.
According to claim 1 or 2 or 5 described stoppers, it is characterized in that 6, in the prescription of described caput and barred body, the Alpha-alumina that adds 1-2% is again made additive.
According to the described stopper of claim 3, it is characterized in that 7, in described caput and the barred body prescription, the Alpha-alumina that adds 1-2% is again made additive.
8, according to the described stopper of claim 4, it is characterized in that, in described caput and the barred body prescription, go into the αYang Hualv of 1-2% in again and make additive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92106398 CN1032746C (en) | 1992-02-14 | 1992-02-14 | Aluminium carbon integrated filler rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92106398 CN1032746C (en) | 1992-02-14 | 1992-02-14 | Aluminium carbon integrated filler rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1075307A true CN1075307A (en) | 1993-08-18 |
| CN1032746C CN1032746C (en) | 1996-09-11 |
Family
ID=4942076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92106398 Expired - Fee Related CN1032746C (en) | 1992-02-14 | 1992-02-14 | Aluminium carbon integrated filler rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1032746C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406163C (en) * | 2002-03-14 | 2008-07-30 | 山东东耐高温材料有限公司 | Compound integral column of sagger |
| CN102240799A (en) * | 2010-05-13 | 2011-11-16 | 青岛正望钢水控制股份有限公司 | Low-temperature baked aluminum-silicon-carbon argon blowing integral stopper for vacuum pouring heavy castings and forgings |
| CN102489695A (en) * | 2011-12-15 | 2012-06-13 | 北京利尔高温材料股份有限公司 | Oxide and non-oxide composite integral stopper rod |
| CN102896309A (en) * | 2011-07-29 | 2013-01-30 | 宝山钢铁股份有限公司 | Monolithic stopper used for continuous casting, and preparation method thereof |
| CN104889377A (en) * | 2015-04-18 | 2015-09-09 | 辽宁科技大学 | Diffusing argon blowing stopper rod for continuous casting and manufacturing method for stopper rod |
| CN113249639A (en) * | 2021-04-27 | 2021-08-13 | 江苏省沙钢钢铁研究院有限公司 | Production method for improving castability of silicon-manganese killed silicon steel |
-
1992
- 1992-02-14 CN CN 92106398 patent/CN1032746C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406163C (en) * | 2002-03-14 | 2008-07-30 | 山东东耐高温材料有限公司 | Compound integral column of sagger |
| CN102240799A (en) * | 2010-05-13 | 2011-11-16 | 青岛正望钢水控制股份有限公司 | Low-temperature baked aluminum-silicon-carbon argon blowing integral stopper for vacuum pouring heavy castings and forgings |
| CN102896309A (en) * | 2011-07-29 | 2013-01-30 | 宝山钢铁股份有限公司 | Monolithic stopper used for continuous casting, and preparation method thereof |
| CN102896309B (en) * | 2011-07-29 | 2015-01-21 | 宝山钢铁股份有限公司 | Monolithic stopper used for continuous casting, and preparation method thereof |
| CN102489695A (en) * | 2011-12-15 | 2012-06-13 | 北京利尔高温材料股份有限公司 | Oxide and non-oxide composite integral stopper rod |
| CN104889377A (en) * | 2015-04-18 | 2015-09-09 | 辽宁科技大学 | Diffusing argon blowing stopper rod for continuous casting and manufacturing method for stopper rod |
| CN113249639A (en) * | 2021-04-27 | 2021-08-13 | 江苏省沙钢钢铁研究院有限公司 | Production method for improving castability of silicon-manganese killed silicon steel |
| CN113249639B (en) * | 2021-04-27 | 2022-04-19 | 江苏省沙钢钢铁研究院有限公司 | Production method for improving castability of silicon-manganese killed silicon steel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1032746C (en) | 1996-09-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG JINXING FIRE-RESISTANT MATERIALS PLANT Free format text: FORMER OWNER: HONGSHAN SPECIAL REFRACTORIES FACTORY, ZIBO CITY Effective date: 20070727 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070727 Address after: 255100, Shandong, Zibo province Zichuan District Luo village, Nie Village West Patentee after: Shandong Jinxing refractory material factory Address before: Hongshan town Zichuan District Shandong road 255100 Hong Zi city in Zibo Province Patentee before: Hongshan Special Refractories Factory, Zibo City |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |