CN2392629Y - Compound molten-steel protection casing tube - Google Patents
Compound molten-steel protection casing tube Download PDFInfo
- Publication number
- CN2392629Y CN2392629Y CN 99229239 CN99229239U CN2392629Y CN 2392629 Y CN2392629 Y CN 2392629Y CN 99229239 CN99229239 CN 99229239 CN 99229239 U CN99229239 U CN 99229239U CN 2392629 Y CN2392629 Y CN 2392629Y
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- CN
- China
- Prior art keywords
- molten steel
- refractory material
- utility
- model
- steel
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- 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.)
- Expired - Fee Related
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- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The utility model relates to a compound molten-steel protection casing tube, which is composed of a cylinder-shaped refractory material 1 and a steel casing 2 which is tightly bonded at the outer surface of the refractory material 1. The utility model has the advantages of low cost, long service life, simple structure, and convenient operation. Besides, in the process of continuous casting in metallurgical industry, the utility model can reduce the temperature drop of molten steel, can ensure continuous casting work to cast for a long time, can prevent molten steel from reoxidation, and can guarantee the quality of molten steel.
Description
The utility model relates to a kind of sleeve pipe, particularly molten steel protection combined type sleeve pipe in the metallurgical industry continuous casting steel machine process.
At present, metallurgical industry in order to reduce molten steel cooling, guarantees that the continuous casting operation pours into a mould for a long time in casting process, prevent secondary oxidation of steel, guarantees steel quality, needs to use special refractory as protective casing, and this sleeve pipe is also referred to as long nozzle.Long nozzle of the prior art is fire resistive material product, and a kind of is vitreous silica matter, and its characteristics thermal coefficient of expansion is little need not to be toasted, but not anti-molten steel scouring, service life is low, price is high.Another kind is the aluminium carbonaceous, must toast before using, though anti-molten steel scouring costs an arm and a leg.---spinel, mullite, corundum matter, corundum---spinel, magnesium---refractory materials such as spinel, be characterized in that the coefficient of expansion is big, need baking before the use and burst easily and select for use anti-molten steel scouring, inexpensive refractory material as aluminium.
The purpose of this utility model be exactly to provide that a kind of cost is low, the life-span long, combined type molten steel protective casing simple in structure, easy to use.
The technical solution of the utility model is achieved in that a kind of combined type molten steel protective casing of being made up of garden tubular refractory material 1, and be characterized in: the intimate at refractory material 1 is combined with box hat 2.
Because the utility model is combined closely at the outer surface of refractory material 1 box hat 2, so just need not toast and can directly use before using, can not burst, increase the service life.Simultaneously, because the protective effect of box hat 2 can be selected cheap refractory material 1, thereby reduce production costs.
Accompanying drawing 1 is the utility model individual layer combined protective sleeve structure cut-away view.
Accompanying drawing 2 is structural representations of the double-layer combined protective casing of the utility model.
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is an individual layer combined type molten steel protective casing structure cut-away view; garden tubular refractory material 1 surrounds a up big and down small garden cylindrical inner chamber; the upper end of inner chamber connects the mouth of a river under the ladle for big mouthful; molten steel flows through from inner chamber; the lower end osculum is cast tundish in succession; but refractory material 1 aluminium---spinel, mullite, corundum matter, corundum---spinel, magnesium---spinel etc., combine closely at the outer surface of garden tubular refractory material 1 by box hat 2.
Fig. 2 is double-layer combined molten steel protective casing structure cut-away view; refractory material is divided into two-layer; nexine is an aluminium, and---spinel etc. burn till refractory product 3 for spinel, mullite, corundum matter, corundum---spinel, magnesium---; the material material is identical with refractory material 1; it is outer that---spinel, mullite, corundum matter, corundum---spinel, magnesium---spinel etc. do not burn refractory product 4 for aluminium; the periphery that refractory product 4 is not burnt in the lower end of sleeve pipe leaves one section not Baogang's shell, is convenient to insert in the continuous casting tundish.
Claims (2)
1. a combined type molten steel protective casing is made up of garden tubular refractory material (1), it is characterized in that: the intimate at refractory material (1) is combined with box hat (2).
2. a kind of combined type molten steel protective casing according to claim 1, it is characterized in that: described refractory material (1) is divided into two-layer, and nexine is for burning till refractory product (3), and is outer for not burning refractory product (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99229239 CN2392629Y (en) | 1999-08-20 | 1999-08-20 | Compound molten-steel protection casing tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99229239 CN2392629Y (en) | 1999-08-20 | 1999-08-20 | Compound molten-steel protection casing tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2392629Y true CN2392629Y (en) | 2000-08-23 |
Family
ID=34018506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99229239 Expired - Fee Related CN2392629Y (en) | 1999-08-20 | 1999-08-20 | Compound molten-steel protection casing tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2392629Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108115120A (en) * | 2017-02-28 | 2018-06-05 | 安徽工业大学 | A kind of protection pipe in molten steel tapping process |
| CN110548862A (en) * | 2019-10-18 | 2019-12-10 | 湛江市红鹰铭德新材料科技有限公司 | Ceramic fiber thermal insulation material covered with aluminum film |
-
1999
- 1999-08-20 CN CN 99229239 patent/CN2392629Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108115120A (en) * | 2017-02-28 | 2018-06-05 | 安徽工业大学 | A kind of protection pipe in molten steel tapping process |
| CN108115120B (en) * | 2017-02-28 | 2024-01-30 | 安徽工业大学 | Protective tube for molten steel tapping process |
| CN110548862A (en) * | 2019-10-18 | 2019-12-10 | 湛江市红鹰铭德新材料科技有限公司 | Ceramic fiber thermal insulation material covered with aluminum film |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Designer after: Yan Jierong Designer after: Xu Xiaolei Designer after: Wang Lei Designer after: Zhang Shifeng Designer after: Zhu Yiwen Designer after: Wang Jin Designer before: Yan Jierong Designer before: Xu Xiaolei Designer before: Wang Lei Designer before: Zhang Shifeng Designer before: Zhu Yiwen |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: DESIGNER; FROM: YAN JIERONG; XU XIAOLEI; WANG LEI; ZHANG SHIFENG; ZHU YIWEN TO: YAN JIERONG; XU XIAOLEI; WANG LEI; ZHANG SHIFENG, ZHU YIWEN; WANG JIN |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |