CN201744649U - Protective sleeve pipe provided with thread - Google Patents
Protective sleeve pipe provided with thread Download PDFInfo
- Publication number
- CN201744649U CN201744649U CN2010202868800U CN201020286880U CN201744649U CN 201744649 U CN201744649 U CN 201744649U CN 2010202868800 U CN2010202868800 U CN 2010202868800U CN 201020286880 U CN201020286880 U CN 201020286880U CN 201744649 U CN201744649 U CN 201744649U
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- CN
- China
- Prior art keywords
- sleeve pipe
- thread
- protective sleeve
- molten steel
- protective
- 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.)
- Expired - Lifetime
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- Treatment Of Steel In Its Molten State (AREA)
Abstract
The utility model discloses a protective sleeve pipe provided with a thread. One end of the protective sleeve pipe is connected with a ladle down nozzle, the other end of the protective sleeve pipe is inserted into molten steel of a tundish for sealing protective casting; the protective sleeve pipe as a whole comprises three areas, i.e., a thread area 1, a reducing area 2 and a protective area 3; and an internal thread connecting thread with length of 50-150 mm is arranged inside the thread area 1 of the protective sleeve pipe. Not only the purpose of protective casting with molten steel is achieved, but also the connecting thread is arranged inside, therefore, the protective sleeve pipe can be used under the condition without a mechanical backing ring.
Description
Technical field
The utility model belongs to the vacuum pouring refractory material, relates generally to a kind of threaded protective casing.
Background technology
Vacuum pouring claims vacuum-casting again, is ingot mould is inserted in the vacuum chamber, and molten steel injects the molten steel application of vacuum technology that ingot mould is cast steel ingot by placing the tundish on the vacuum chamber lid.
Be heated into liquid molten steel and at first be contained in and be subjected in the steel steel ladle, to the tundish top, and molten steel directly injected tundish by the overhead traveling crane roping.This method of directly molten steel being injected tundish easily makes molten steel that secondary oxidation takes place in injection process, thereby reduces the molten steel quality, causes tundish liquid level shakiness, influence cast and ingot quality.
The utility model content
Technical problem to be solved in the utility model is to overcome generation secondary oxidation when molten steel injects tundish by steel ladle in the existing vacuum pouring technology, thereby cause the shortcoming of molten steel quality reduction.
In order to solve the problems referred to above that prior art exists; the utility model is to adopt following technical proposals to realize: when molten steel by ladle during to basket pouring; for fear of secondary oxidation of steel; protective casing is installed in the lower end at the mouth of a river under ladle bottom; one end links to each other with the following mouth of a river, carries out the seal protection cast in the molten steel of other end insertion tundish.This protective casing integral body is divided into three zones: threaded area, reducing district, protection zone.
The utility model also has following technical characterictic: in the protective casing threaded area, inside is provided with the internal thread connecting thread of 50～150mm length range, and during use, the screw thread of below, the mouth of a river docks with wrapping down greatly with screw thread.
Advantage of the present utility model and good effect are; not only realized molten steel protection cast; avoid molten steel generation secondary oxidation, solved because the problem that the molten steel quality that secondary oxidation causes reduces, can also overcome the shortcoming of the tundish liquid level shakiness that causes simultaneously because molten steel splashes.Because its inner connecting thread that is provided with, can realize not having under the situation of mechanical backing ring docking of the mouth of a river under the protective casing and ladle, easy to use.
Description of drawings
Figure is a cutaway view of the present utility model.
Among the figure, 1, threaded area, 2, the reducing district, 3, the protection zone.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in the figure, the threaded protective casing integral body of this kind is divided into three zones: threaded area 1, reducing district 2, protection zone 3.Threaded area 1 is provided with the internal thread connecting thread of 50～150mm length range.
Claims (1)
1. a threaded protective casing is characterized in that: in the threaded area (1) of protective casing, be provided with the internal thread connecting thread of 50～150mm length range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202868800U CN201744649U (en) | 2010-08-06 | 2010-08-06 | Protective sleeve pipe provided with thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202868800U CN201744649U (en) | 2010-08-06 | 2010-08-06 | Protective sleeve pipe provided with thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201744649U true CN201744649U (en) | 2011-02-16 |
Family
ID=43579319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202868800U Expired - Lifetime CN201744649U (en) | 2010-08-06 | 2010-08-06 | Protective sleeve pipe provided with thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201744649U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102441664A (en) * | 2011-12-13 | 2012-05-09 | 青岛正望钢水控制股份有限公司 | Method for protectively pouring ladle in vacuum pouring process |
| CN114367656A (en) * | 2022-01-13 | 2022-04-19 | 山东钢铁股份有限公司 | Water gap for casting protection of H-shaped steel and using method |
-
2010
- 2010-08-06 CN CN2010202868800U patent/CN201744649U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102441664A (en) * | 2011-12-13 | 2012-05-09 | 青岛正望钢水控制股份有限公司 | Method for protectively pouring ladle in vacuum pouring process |
| CN114367656A (en) * | 2022-01-13 | 2022-04-19 | 山东钢铁股份有限公司 | Water gap for casting protection of H-shaped steel and using method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| C56 | Change in the name or address of the patentee |
Owner name: QINGDAO ZHENGWANG MOLTEN STEEL CONTROL CO., LTD. Free format text: FORMER NAME: QINGDAO HIWORLD REFRACTORY CO., LTD. |
|
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Zhengmin Inventor after: Deng Longhui Inventor after: Liu Zijun Inventor after: Liu Qiang Inventor before: Zhang Zhengmin |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHANG ZHENGMIN TO: ZHANG ZHENGMIN DENG LONGHUI LIU ZIJUN LIU QIANG |
|
| CP03 | Change of name, title or address |
Address after: 266201, Shandong Jimo Qingdao environmental protection industrial park, No. 1 look at the road Patentee after: Qingdao Zhengwang Steel Control Co.,Ltd. Address before: 266201, Qingdao environmental protection industrial park, Shandong Province, No. 8 hope road Patentee before: Qingdao Hiworld Refractory Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110216 |
|
| CX01 | Expiry of patent term |