CN203470895U - Device for protecting liquid steel flow injection through argon flow - Google Patents
Device for protecting liquid steel flow injection through argon flow Download PDFInfo
- Publication number
- CN203470895U CN203470895U CN201320600351.7U CN201320600351U CN203470895U CN 203470895 U CN203470895 U CN 203470895U CN 201320600351 U CN201320600351 U CN 201320600351U CN 203470895 U CN203470895 U CN 203470895U
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- steel
- molten steel
- ladle
- flow
- molten
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Abstract
The utility model discloses a device for protecting liquid steel flow injection through argon flow. The device comprises a steel ladle, a spraying nozzle bottom plate and an inflation sleeve. The spraying nozzle bottom plate is arranged at the bottom of the steel ladle. The inflation sleeve is fixed to the bottom of the steel ladle through a fixing device. A water opening is formed in the bottom of the steel ladle. Molten steel flows out of the water opening in the pouring process. An annular gas spraying pipe is arranged on the periphery of the water opening in the spraying nozzle bottom plate. The annular gas spraying pipe is connected with an argon inlet pipe outside the inflation sleeve. A plurality of vent holes are formed in the lower surface of the annular gas spraying pipe. Argon flow is perpendicularly blown downward out of the vent holes. The problem that secondary oxidation is serious in the molten alloy steel and molten stainless steel pouring process is solved, a tubular gas curtain is formed by the argon flow around the molten steel injection flow, the injection flow is isolated from the atmosphere, secondary oxidation of the molten steel is lowered, the gas content in steel is lowered, and the purity degree of the molten steel is ensured. When the device is used for conducting pouring, the quality of castings is remarkably improved.
Description
Technical field
The utility model relates to the pouring technology of cast steel molten steel, the molten steel protection while being specifically related to be applicable to high-quality valve steel alloy and the cast of cast stainless steel part.
Background technology
Along with social development, the increase in demand of market to high-end valve, produces the target that high-quality valve blank Jian Shi cast steel enterprise is pursued.Being mingled with casting is a very puzzled problem, is the main inducing that defect appears in product, not only very large to the mechanical performance harm of steel, even may cause that the foundry goods of whole one heat steel water cast is scrapped.
When steel alloy and stainless steel molten steel are poured into a mould with ladle, molten steel contacts with air, and the alloying element in molten steel and airborne oxygen generation chemical reaction (secondary oxidation) are produced new oxidation phase and pollute molten steel, cause the Quality Down of poured into a mould foundry goods, also affect final mechanical performance.Therefore prevent or to alleviate the secondary oxidation of molten steel in casting process most important.
Utility model content
In order to solve the above-mentioned technical problem existing in prior art; the utility model provides a kind of device that utilizes argon stream protection molten steel beam; comprise ladle, nozzle base sheet and inflation sleeve; described nozzle base sheet is arranged on the bottom of ladle; described inflation sleeve is fixed on the bottom of ladle by fixture; ladle bottom is provided with the mouth of a river, and the surrounding of described nozzle base sheet filling pipe end is provided with ring jet pipe, and described ring jet pipe is connected with the argon inlet pipe outside inflation sleeve.
Further, described ring jet pipe lower surface is provided with several passages.
The utility model has solved steel alloy and the serious problem of the secondary oxidation of stainless steel molten steel in casting process, utilize argon stream at surrounding's formation tubulose air curtain of molten steel beam, by beam and isolated from atmosphere, thereby alleviated the secondary oxidation of molten steel, reduce gas content in steel, guaranteed the degree of purity of molten steel.The cast of employing the method, has positive effect to improving casting quality.
Accompanying drawing explanation
Fig. 1 is the structural representation that utilizes the device of argon stream protection molten steel beam of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the device that utilizes argon stream protection molten steel beam of the present utility model, comprise ladle 2, nozzle base sheet 3 and inflation sleeve 7, nozzle base sheet 3 is arranged on the bottom of ladle 2, inflation sleeve 7 is fixed on the bottom of ladle 2 by fixture 4, ladle 2 bottoms are provided with the mouth of a river 6, molten steel 6 outflows from mouth of a river during cast, the surrounding of nozzle base sheet 3 filling pipe ends 6 is provided with ring jet pipe 5, ring jet pipe 5 lower surfaces are provided with several passages, argon stream blows out vertically downward from passage, ring jet pipe 5 is connected with the argon inlet pipe 1 outside inflation sleeve 7.
The method of utilizing argon stream protection molten steel beam of the present utility model; utilize argon stream at surrounding's formation tubulose air curtain of molten steel beam; formed an air curtain parallel with beam; by beam and isolated from atmosphere; form the vacuum environment of relative seal, thereby alleviated the secondary oxidation of molten steel, reduced gas content in steel; guarantee the degree of purity of molten steel, improved casting quality.
Claims (2)
1. a device that utilizes argon stream protection molten steel beam; comprise ladle (2), nozzle base sheet (3) and inflation sleeve (7); it is characterized in that: described nozzle base sheet (3) is arranged on the bottom of ladle (2); described inflation sleeve (7) is fixed on the bottom of ladle (2) by fixture (4); ladle (2) bottom is provided with the mouth of a river (6); the surrounding of described nozzle base sheet (3) filling pipe end (6) is provided with ring jet pipe (5), and described ring jet pipe (5) is connected with the outer argon inlet pipe (1) of inflation sleeve (7).
2. the device that utilizes argon stream protection molten steel beam as claimed in claim 1, is characterized in that: described ring jet pipe (5) lower surface is provided with several passages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320600351.7U CN203470895U (en) | 2013-09-27 | 2013-09-27 | Device for protecting liquid steel flow injection through argon flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320600351.7U CN203470895U (en) | 2013-09-27 | 2013-09-27 | Device for protecting liquid steel flow injection through argon flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203470895U true CN203470895U (en) | 2014-03-12 |
Family
ID=50219305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320600351.7U Expired - Fee Related CN203470895U (en) | 2013-09-27 | 2013-09-27 | Device for protecting liquid steel flow injection through argon flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203470895U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480834A (en) * | 2013-09-27 | 2014-01-01 | 中核苏阀横店机械有限公司 | Device and method for utilizing argon flow to protect molten steel injection flow |
| CN104525929A (en) * | 2014-12-18 | 2015-04-22 | 东北大学 | Method for controlling steel ladle tapping slag by blowing argon gas to annular steel outlet in bottom of steel ladle |
| CN106180672A (en) * | 2016-09-30 | 2016-12-07 | 马鞍山钢铁股份有限公司 | A kind of ingot casting mould argon blowing protection device |
-
2013
- 2013-09-27 CN CN201320600351.7U patent/CN203470895U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480834A (en) * | 2013-09-27 | 2014-01-01 | 中核苏阀横店机械有限公司 | Device and method for utilizing argon flow to protect molten steel injection flow |
| CN104525929A (en) * | 2014-12-18 | 2015-04-22 | 东北大学 | Method for controlling steel ladle tapping slag by blowing argon gas to annular steel outlet in bottom of steel ladle |
| CN106180672A (en) * | 2016-09-30 | 2016-12-07 | 马鞍山钢铁股份有限公司 | A kind of ingot casting mould argon blowing protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20160927 |