CN102554157A - Method for feeding inert gas into nozzle and nozzle clamp - Google Patents
Method for feeding inert gas into nozzle and nozzle clamp Download PDFInfo
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- CN102554157A CN102554157A CN2010105981301A CN201010598130A CN102554157A CN 102554157 A CN102554157 A CN 102554157A CN 2010105981301 A CN2010105981301 A CN 2010105981301A CN 201010598130 A CN201010598130 A CN 201010598130A CN 102554157 A CN102554157 A CN 102554157A
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- lip
- inert gas
- anchor clamps
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- nozzle
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Abstract
The invention discloses a method for feeding inert gas into a nozzle and a nozzle clamp. The method includes the following steps of feeding inert gas into a nozzle clamp outside the nozzle and storing the inert gas in gas tanks on the inner side of an upper clamping plate and/or lower clamping plate of the nozzle clamp; feeding inert gas continuously, and then delivering the inert gas to a lip end of the nozzle through gas passages connected with the gas tanks. The method and the nozzle clamp are applicable to the field of metal cast rolling, inert gas fed into the nozzle is sufficient in quantity while pressure of the inert gas is kept stable, and exposed molten aluminum can be effectively prevented from contacting with air so that secondary pollution and oxidation of molten aluminum can be avoided.
Description
Technical field
The present invention relates to metal rolling casting technology field, relate in particular to a kind of method and lip anchor clamps that inert gas fed lip.
Background technology
Casting is with crystallizer and the technical process of Direct Production ejecting plate carries product of molten aluminum liquid through rotation; Casting and rolling production process is with its small investment in recent years; Flow process is short, and advantage of low energy consumption is generally adopted, and compares traditional hot rolling technology and has sizable advantage.Strip casting process can briefly be described as follows: case before high temperature aluminum liquid is imported by chute gets into lip; Under the pressure that preceding case liquid level is produced, flow, become aluminium sheet after the aluminum melt cooling of outflow lip lip end to lip lip end.
During casting, high temperature aluminum liquid directly is exposed in the air, and airborne oxygen, hydrogen and steam can be involved in aluminium liquid with aluminium stream, increase inclusion content in the aluminium, cause the secondary pollution of aluminium liquid, make the Aluminum Plate and Strip product quality descend.Rarely have the technology that solves aluminium and aluminium alloy casting strip material surface quality aspect at present, defectives such as air flue slag inclusion, surface oxidation and surperficial aluminium powder become the industry difficult problem that casting is produced.
Adopt more blowing argon means at present, between aluminium liquid and air, form the inert gas shielding air film, avoid air to contact with the direct of aluminium liquid.This method is the aluminium liquid surface that directly argon gas is passed into the lip exit, and can cause two problems: 1, gas flow is little, can not surround the aluminium liquid at lip place fully; 2, inert gas pressure is unstable, and destructible aluminium liquid bent face causes the aluminium sheet finished product striated surface defective to occur.
Summary of the invention
The embodiment of the invention provides a kind of inert gas has been fed the method for lip, and the amount of inert gas of feeding is sufficient, and inert gas pressure is stable, can effectively completely cut off exposed aluminium liquid and contact with air, prevents the secondary pollution and the oxidation of aluminium liquid.
For realizing above-mentioned purpose, the embodiment of the invention provides following technical scheme:
A kind of inert gas is fed the method for lip, may further comprise the steps:
Inert gas is fed the lip anchor clamps in the lip outside, be stored in the train wheel bridge and/or the inboard air drain of lower plate that are arranged in the lip anchor clamps; Continue to feed inert gas, make inert gas escape into lip lip end through the air flue that links to each other with said air drain.
Preferably, inert gas being fed the lip anchor clamps comprises before: be connected inert gas container and lip anchor clamps with three-way pipe with sebific duct.
Preferably, comprise after being connected inert gas container and lip anchor clamps with three-way pipe with sebific duct: alumina silicate paper gasket be incumbent on clamping plate and lower plate inboard.
A kind of lip anchor clamps that have inert gas feeding function; Comprise train wheel bridge, lower plate and be positioned at the wedge type block of side portion between two clamping plate; At least two air flues that the opposite face of train wheel bridge and lower plate is provided with at least one air drain and is connected with said air drain; The other end of air flue is a lip lip end, and air drain links to each other with the inert gas passage.
Preferably, air drain is shaped as circle, ellipse, square or irregular shape.
Preferably, air flue is radiation line segment shape.
Preferably, the port of export width of air flue is greater than the inlet end width.
Preferably, the air flue number that is positioned at train wheel bridge and lower plate inner surface both sides is greater than the air flue number that is positioned at anchor clamps central authorities.
Compared with prior art, the present invention has following beneficial effect:
1, amount of inert gas is sufficient: the amount of inert gas that every air flue on the clamping plate provides can be equivalent to an amount of inert gas that the inert gas shielding device provides of the prior art; Be that the inventive method can provide and is several times as much as the amount of inert gas that existing apparatus can provide, have sufficient tolerance to come complete secluding air;
2, inert gas pressure is stable: in the air drain of inert gas storage in the lip anchor clamps, not only play the effect of buffer gas flow, can also keep the inert gas constant pressure, avoid influencing the liquid bent face of aluminium liquid;
3, inert gas evenly distributes: the air flue density of anchor clamps inner surface both sides is greater than the air flue density of anchor clamps central authorities, and guiding inert gas average diffusion wraps aluminium liquid fully to lip lip end;
4, simple in structure: the lip anchor clamps are made up of two flat boards, and a dull and stereotyped side has air drain and the air flue that forms through machining, and leave the duct and inert gas is fed each air drain get final product, are prone to processing and are prone to use, and can reuse.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use among the embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the overall schematic of embodiment of the invention device;
Fig. 2 is the structural representation of the lower plate of embodiment of the invention lip anchor clamps;
Fig. 3 is an embodiment of the invention lip anchor clamps overall structure sketch map;
Wherein, 1, train wheel bridge, 2, lower plate, 3, the single piece type ball valve, 4, air drain, 5, air flue, 6, inert gas passage, 7, paper gasket, 8, lip lip end, 9, wedge, 10, three-way pipe, 11, sebific duct, 12, the inert gas bottle, 13, gas pressure maintaining valve.
The specific embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The embodiment of the invention is through feeding inert gas finished lip anchor clamps, and this inert gas storage is in the inboard air drain of the train wheel bridge of lip anchor clamps and/or lower plate; And continue to feed inert gas, make inert gas escape into lip lip end through the air flue that links to each other with air drain, be coated on the aluminium liquid surface of flowing out, secluding air from the lip lip.
It below is specific embodiment.
Embodiment one, referring to Fig. 1 and Fig. 2.
Step 101: inert gas is fed the lip anchor clamps in the lip outside, be stored in the inboard air drain 4 of train wheel bridge 1 and/or the lower plate 2 of lip anchor clamps.
Inert gas temporarily is stored in the inboard air drain 4 of clamping plate, can plays the buffer gas flowing velocity, stable effect keep-ups pressure.Inert gas refers to not and the gas that is reacted by the protection melt, comprises helium, neon, argon gas, krypton gas, xenon and nitrogen.
Step 102: continue to feed inert gas, make inert gas escape into lip lip end 8 through the air flue 5 that links to each other with air drain 4.
Embodiment two,
Step 201: be connected inert gas bottle 12 and lip anchor clamps with three-way pipe 10 with sebific duct 11.
Inert gas is caused the lip anchor clamps from inert gas container.Can on each section sebific duct, install gas pressure maintaining valve 13 additional, to adjust, to stablize each regional air pressure.
Step 202: with alumina silicate paper gasket 7 be incumbent on clamping plate 1 and lower plate 2 inboards.
The alumina silicate paper gasket can reduce the resistance of aluminium liquid when the anchor clamps internal flow.
Also can comprise, on the side of train wheel bridge 1 and lower plate 2 opposite faces, install wedge type block 9 additional, fix when going up lower plate, can avoid inert gas to overflow, cause waste from the clamping plate both sides.
Step 203: inert gas is fed the lip anchor clamps in the lip outside, be stored in the inboard air drain 4 of train wheel bridge 1 and/or the lower plate 2 of lip anchor clamps.
Step 204: continue to feed inert gas, make inert gas escape into lip lip end 8 through the air flue 5 that links to each other with air drain 4.
Embodiment three,
A kind ofly have lip anchor clamps that inert gas feeds function, comprise train wheel bridge, lower plate and be positioned at the wedge type block of side portion between two clamping plate.Referring to Fig. 1 to Fig. 3, at least two air flues 5 that the opposite face of train wheel bridge 1 and lower plate 2 is provided with at least one air drain 4 and is connected with air drain 4, the other end of air flue 5 are lip lip end 8, and air drain 4 links to each other with inert gas passage 6.Can fix through the bolted mode between the last lower plate.
The lip anchor clamps are made up of two iron plates up and down and the wedge type block 9 of symmetry, and wedge type block 9 is fixing when going up lower plate, can avoid inert gas to overflow from the clamping plate both sides, causes waste.Form the air cavity of inert gas between lip front end and the casting roller, surround the aluminium water at lip place fully, isolated exposed aluminium stream contacts with air.
More than a kind of method and lip anchor clamps that inert gas is fed lip that the embodiment of the invention is provided carried out detailed introduction; Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that on the specific embodiment and range of application, all can change can know that to sum up this description should not be construed as limitation of the present invention.
Claims (8)
1. one kind feeds the method for lip with inert gas, it is characterized in that, may further comprise the steps:
Inert gas is fed the lip anchor clamps in the lip outside, be stored in the train wheel bridge and/or the inboard air drain of lower plate that are arranged in the lip anchor clamps;
Continue to feed inert gas, make inert gas escape into lip lip end through the air flue that links to each other with said air drain.
2. method according to claim 1 is characterized in that, inert gas is fed the lip anchor clamps comprise before:
Be connected inert gas container and lip anchor clamps with three-way pipe with sebific duct.
3. method according to claim 2 is characterized in that, comprises after being connected inert gas container and lip anchor clamps with three-way pipe with sebific duct:
Be incumbent on clamping plate and lower plate of alumina silicate paper gasket is inboard.
4. one kind has the lip anchor clamps that inert gas feeds function; Comprise train wheel bridge, lower plate and be positioned at the wedge type block of side portion between two clamping plate; It is characterized in that; At least two air flues that the opposite face of said train wheel bridge and said lower plate is provided with at least one air drain and is connected with said air drain, the other end of said air flue are lip lip end, and said air drain links to each other with the inert gas passage.
5. lip anchor clamps according to claim 4 is characterized in that, said air drain be shaped as circle, ellipse, square or irregular shape.
6. lip anchor clamps according to claim 4 is characterized in that, said air flue is radiation line segment shape.
7. lip anchor clamps according to claim 4 is characterized in that, the port of export width of said air flue is greater than the inlet end width.
8. according to each described lip anchor clamps of claim 4 to 7, it is characterized in that the air flue number that is positioned at said train wheel bridge and said lower plate inner surface both sides is greater than the air flue number that is positioned at anchor clamps central authorities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105981301A CN102554157A (en) | 2010-12-21 | 2010-12-21 | Method for feeding inert gas into nozzle and nozzle clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105981301A CN102554157A (en) | 2010-12-21 | 2010-12-21 | Method for feeding inert gas into nozzle and nozzle clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102554157A true CN102554157A (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105981301A Pending CN102554157A (en) | 2010-12-21 | 2010-12-21 | Method for feeding inert gas into nozzle and nozzle clamp |
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| CN (1) | CN102554157A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105149535A (en) * | 2015-09-30 | 2015-12-16 | 中镁镁业有限公司 | Heating protection device for continuous casting-rolling nozzles of magnesium and magnesium alloy |
| CN105689659A (en) * | 2016-01-25 | 2016-06-22 | 晟通科技集团有限公司 | Casting mouth clamp and temperature control system and method using casting mouth clamp |
| CN107116189A (en) * | 2017-06-26 | 2017-09-01 | 太原科技大学 | A kind of roll-casting of magnesium alloy liquid-supplying system and its aluminium alloy liquid level controlling method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0092844A1 (en) * | 1982-04-28 | 1983-11-02 | Hazelett Strip-Casting Corporation | Method and apparatus for feeding and continuously casting molten metal with inert gas applied to the moving mold surfaces and to the entering metal |
| JP2984871B2 (en) * | 1992-03-09 | 1999-11-29 | 新日本製鐵株式会社 | Twin roll thin plate continuous casting method |
| US6129889A (en) * | 1996-02-07 | 2000-10-10 | Veitsch-Radex Aktiengesellschaft Fur Feuerfeste Erzeugnisse | Gas-flushing base for metallurgical vessels |
| KR100657591B1 (en) * | 2005-12-23 | 2006-12-14 | 주식회사 포스코 | Apparatus for casting strip of magnesium alloy with protecting gas chamber |
| CN101157093A (en) * | 2007-11-16 | 2008-04-09 | 苏州有色金属研究院有限公司 | A process equipment of magnesium alloy plate belt and technics |
| CN101264513A (en) * | 2008-02-28 | 2008-09-17 | 湖南晟通科技有限公司 | Cast-rolling protection method and device capable of avoiding molten metal oxidization |
| CN201969854U (en) * | 2010-12-28 | 2011-09-14 | 湖南晟通科技集团有限公司 | Lip clamp with function of introducing inert gas |
-
2010
- 2010-12-21 CN CN2010105981301A patent/CN102554157A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0092844A1 (en) * | 1982-04-28 | 1983-11-02 | Hazelett Strip-Casting Corporation | Method and apparatus for feeding and continuously casting molten metal with inert gas applied to the moving mold surfaces and to the entering metal |
| JP2984871B2 (en) * | 1992-03-09 | 1999-11-29 | 新日本製鐵株式会社 | Twin roll thin plate continuous casting method |
| US6129889A (en) * | 1996-02-07 | 2000-10-10 | Veitsch-Radex Aktiengesellschaft Fur Feuerfeste Erzeugnisse | Gas-flushing base for metallurgical vessels |
| KR100657591B1 (en) * | 2005-12-23 | 2006-12-14 | 주식회사 포스코 | Apparatus for casting strip of magnesium alloy with protecting gas chamber |
| CN101157093A (en) * | 2007-11-16 | 2008-04-09 | 苏州有色金属研究院有限公司 | A process equipment of magnesium alloy plate belt and technics |
| CN101264513A (en) * | 2008-02-28 | 2008-09-17 | 湖南晟通科技有限公司 | Cast-rolling protection method and device capable of avoiding molten metal oxidization |
| CN201969854U (en) * | 2010-12-28 | 2011-09-14 | 湖南晟通科技集团有限公司 | Lip clamp with function of introducing inert gas |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105149535A (en) * | 2015-09-30 | 2015-12-16 | 中镁镁业有限公司 | Heating protection device for continuous casting-rolling nozzles of magnesium and magnesium alloy |
| CN105149535B (en) * | 2015-09-30 | 2017-12-12 | 中镁镁业有限公司 | A kind of magnesium and magnesium alloy continuous casting and rolling lip heating protecting device |
| CN105689659A (en) * | 2016-01-25 | 2016-06-22 | 晟通科技集团有限公司 | Casting mouth clamp and temperature control system and method using casting mouth clamp |
| CN105689659B (en) * | 2016-01-25 | 2018-03-27 | 晟通科技集团有限公司 | Lip fixture, temperature control system and method using lip fixture |
| CN107116189A (en) * | 2017-06-26 | 2017-09-01 | 太原科技大学 | A kind of roll-casting of magnesium alloy liquid-supplying system and its aluminium alloy liquid level controlling method |
| CN107116189B (en) * | 2017-06-26 | 2023-03-21 | 太原科技大学 | Magnesium alloy casting-rolling liquid supply system and alloy liquid level control method thereof |
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Address after: Sheng Tong Industrial Park No. 109 Venus Road 410200 in Hunan province Changsha City Applicant after: Suntown Technology Group Corporation Address before: Sheng Tong Industrial Park No. 109 Venus Road 410200 in Hunan province Changsha City Applicant before: Hunan Shengtong Technology Group Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: HUNAN SHENGTONG TECHNOLOGY GROUP CO., LTD. TO: SNTO TECHNOLOGY GROUP CO., LTD. |
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Application publication date: 20120711 |