CN1911543A - Liquid-liquid phase level casting rolling composite method and device of steel back aluminium base compound plate - Google Patents
Liquid-liquid phase level casting rolling composite method and device of steel back aluminium base compound plate Download PDFInfo
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- CN1911543A CN1911543A CN 200610112760 CN200610112760A CN1911543A CN 1911543 A CN1911543 A CN 1911543A CN 200610112760 CN200610112760 CN 200610112760 CN 200610112760 A CN200610112760 A CN 200610112760A CN 1911543 A CN1911543 A CN 1911543A
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Abstract
The present invention is liquid-liquid phase horizontal casting-rolling process and apparatus for producing steel back aluminum base composite plate. The apparatus includes horizontal composite sprue and rolling machine. The liquid-liquid phase horizontal casting-rolling process includes the following steps: for the deaired molten steel and aluminum base metal liquid to flow separately to water cooled composite sprue, cooling molten steel to form steel plate, forming composite interface through the diffusion reaction with aluminum base metal liquid and casting-rolling in a rolling machine to form the steel back aluminum base composite plate. The present invention has the advantages of simple apparatus and convenient technological operation.
Description
Technical field
The present invention relates to a kind of liquid liquid phase composite method for casting and rolling and device of steel back aluminium composite plate.
Background technology
Publication number: CN1718296A, denomination of invention: on " a kind of liquid liquid phase composite method of steel back aluminium composite plate and device ", set forth vertical composite method for casting and rolling of steel back aluminium composite plate liquid liquid phase and device.This method adopts vertical compound pouring mouth and milling train to realize that molten steel is compound with the vertical casting of aluminum base metal liquid.Because equipment vertical distribution such as the pouring metal melt of this method, composite plate are shaped and follow-up composite plate is curled make set composite tall and big, cause the technological operation inconvenience such as cast of molten steel and aluminum base metal liquid.
Summary of the invention
Technical problem to be solved by this invention is, overcome the deficiency of " equipment is tall and big, technological operation is inconvenient " of existing steel back aluminium composite plate liquid liquid phase composite method for casting and rolling existence, a kind of technological operation the liquid liquid phase composite method for casting and rolling and the device of steel back aluminium composite plate easily are provided.
The technical solution adopted for the present invention to solve the technical problems is:
Compound pouring mouth of employing level and milling train realize that the level casting rolling of molten steel and aluminum base metal liquid is compound; Pour into the compound pouring mouth of water-cooled through the molten steel of degassing processing and aluminum base metal liquid respectively from runner separately, after the molten steel cooled and solidified becomes steel plate and cooling, carry out diffusion reaction with aluminum base metal liquid, behind the formation compound interface, form steel back aluminium composite plate through the rolling mill roll casting.
The concrete steps of complex method of the present invention:
Step 1, the cooling system of connection compound pouring mouth of water-cooled and rolling mill roll, the cooling velocity of molten steel cooling chamber is 600～800 ℃/min, the cooling velocity of rolling mill roll is 400～800 ℃/min;
Step 2 starts milling train, mill speed is transferred to and remains on realization " race is rolled " speed;
Step 3 will be poured the molten steel runner and the aluminum base metal liquid runner of the compound pouring mouth of water-cooled through the aluminum base metal liquid of 1600 ℃ molten steel of degassing processing and 700 ℃ respectively into, carry out " race is rolled ";
Step 4, after " race is rolled " 1 minute, reduce mill speed, recombination process is carried out under stable condition, molten steel is being frozen into steel plate and is being cooled to 550～450 ℃ before it enters the aluminum base metal liquid runner under the cooling effect of molten steel cooling chamber, steel backing forms steel back aluminium composite plate through the rolling mill roll casting in the aluminum base metal liquid runner and after carrying out the diffusion reaction of 15～25s between the aluminium base coating.
Steel back aluminium composite plate liquid-liquid phase level casting rolling set composite comprises: the compound pouring mouth of water-cooled, milling train and support.
The compound pouring mouth of water-cooled adopts mechanical connection manner to be fixed on the support, its material is a graphite, be provided with molten steel runner and aluminum base metal liquid runner in the compound pouring mouth of water-cooled, the thickness a of molten steel runner is the thickness of steel back aluminium composite plate steel backing, the thickness b of aluminum base metal liquid runner is the thickness of steel back aluminium composite plate, the lower end thickness of molten steel cast gate also is the thickness of steel back aluminium composite plate steel backing for a, and the lower end thickness e of aluminum base metal liquid cast gate is that b-a is the aluminium base coating layer ranges in thickness of steel back aluminium composite plate; The beneath of molten steel runner is the molten steel cooling chamber, molten steel cooling chamber two sides are provided with into water swivel and water out adapter, be connected with pipeline, joint door, water pump, cooling pond, form the circulating cooling system of the compound pouring mouth of water-cooled, finish molten steel cooling and cooling, the thickness of molten steel cooling chamber is not limit, and its length is that the length d of molten steel runner is the amassing of time that mill speed and molten steel need cool off, and the length f of aluminum base metal liquid runner is that the diffusion reaction time between mill speed and steel backing and the aluminium base coating is long-pending; The width of the width of the width of the width of the width of molten steel runner, aluminum base metal liquid runner, molten steel cast gate, aluminum base metal liquid cast gate, molten steel cooling chamber is the width g of steel back aluminium composite plate; The compound pouring mouth front end of water-cooled is circular arc with rolling mill roll and contacts, and the gap c between its arc surface and the rolling mill roll arc surface is less than 0.5mm.
Milling train is selected for use can provide casting compound horizontal mill with the smooth institute of composite plate energy requirement, and rolling mill roll is an inner-cooled water-cooled roll, and roller shell is copper roller shell.
The invention has the beneficial effects as follows: the present invention utilizes compound pouring mouth of level and milling train to realize that the level casting rolling of molten steel and aluminum base metal liquid is compound, the performance of level casting rolling composite plate is suitable with the performance of vertical casting composite plate, the compound interface shear strength has reached 62～66MPa, has solved the problem of " equipment is tall and big, technological operation is inconvenient " of existing steel back aluminium composite plate liquid liquid phase composite method for casting and rolling existence.
Description of drawings
Fig. 1 is the front view of steel back aluminium composite plate liquid-liquid phase level casting rolling set composite of the present invention.Among the figure, the 1. compound pouring mouth of water-cooled, 2. molten steel runner, 3. aluminum-based alloy liquid runner, 4. the molten steel cooling chamber is 5. gone into water swivel, 6. water out adapter, 7. molten steel, 8. aluminum-based alloy liquid, 9. steel back aluminium composite plate, 10. milling train, 11. rolling mill rolls, 12. supports.
Fig. 2 is the vertical view of steel back aluminium composite plate liquid-liquid phase level casting rolling set composite of the present invention.
The specific embodiment
As follows to specifying of the inventive method set composite in conjunction with the accompanying drawings:
Steel back aluminium composite plate liquid-liquid phase level casting rolling set composite comprises: the compound pouring mouth 1 of water-cooled, milling train 10 and support 12.
The compound pouring mouth 1 of water-cooled adopts mechanical connection manner to be fixed on the support 12, its material is a graphite, be provided with molten steel runner 2 and aluminum base metal liquid runner 3 in the compound pouring mouth 1 of water-cooled, the thickness a of molten steel runner 2 is the thickness of steel back aluminium composite plate steel backing, the thickness b of aluminum base metal liquid runner 3 is the thickness of steel back aluminium composite plate 9, the lower end thickness of molten steel cast gate also is the thickness of steel back aluminium composite plate steel backing for a, and the lower end thickness e of aluminum base metal liquid cast gate is that b-a is the aluminium base coating layer ranges in thickness of steel back aluminium composite plate; The beneath of molten steel runner 2 is molten steel cooling chamber 4, molten steel cooling chamber 4 two sides are provided with into water swivel 5 and water out adapter 6, be connected with pipeline, joint door, water pump, cooling pond, form the circulating cooling system of the compound pouring mouth of water-cooled, finish molten steel 7 coolings and cooling, the thickness of molten steel cooling chamber 4 is not limit, its length is that the length d of molten steel runner 2 is the amassing of time that mill speed and molten steel need cool off, and the length f of aluminum base metal liquid runner 3 is that the diffusion reaction time between mill speed and steel backing and the aluminium base coating is long-pending; The width of the width of the width of the width of the width of molten steel runner 2, aluminum base metal liquid runner 3, molten steel cast gate, aluminum base metal liquid cast gate, molten steel cooling chamber 4 is the width g of steel back aluminium composite plate 9; Compound pouring mouth 1 front end of water-cooled is circular arc with rolling mill roll 11 and contacts, and the gap c between its arc surface and rolling mill roll 11 arc surfaces is less than 0.5mm.
The concrete steps of complex method of the present invention are as follows:
Embodiment one
Step 1, the cooling system of connection compound pouring mouth of water-cooled and rolling mill roll, the cooling velocity of molten steel cooling chamber is 600～800 ℃/min, and the cooling velocity of rolling mill roll is 800 ℃/min, and the rolling mill roll diameter is 320mm;
Step 2 starts milling train, mill speed is transferred to and remains on realization " race is rolled " speed;
Step 3, to pour the molten steel runner and the aluminum base metal liquid runner of the compound pouring mouth of water-cooled through the aluminium 20 ashbury metal liquid of 1600 ℃ 08 aluminum-steel liquid of degassing processing and 700 ℃ respectively into, carry out " race is rolled ", molten steel runner thickness a is 1.2mm, and aluminum base metal liquid runner thickness b is 2.5mm;
Step 4, after " race is rolled " 1 minute, reduce mill speed, molten steel is being frozen into steel plate and is being cooled to 550 ℃ before it enters the aluminum base metal liquid runner under the cooling effect of molten steel cooling chamber, after steel backing carried out the diffusion reaction of 20s in the aluminum base metal liquid runner and between the aluminium 20 tin coating, forming interface shear strength through the rolling mill roll casting was the steel backing aluminium 20 tin composite plates of 66MPa.
Embodiment two
With the difference of embodiment one be: the steel plate that solidification of molten steel becomes before entering the aluminum base metal liquid runner, be cooled to 450 ℃, steel backing in the aluminum base metal liquid runner and the diffusion reaction time between the aluminium 20 tin coating be that the cooling velocity of 25s, rolling mill roll is 400 ℃/min, the interface shear strength of the steel backing aluminium 20 tin composite plates that obtain is 64MPa.
Embodiment three
With the difference of embodiment one be: the steel plate that solidification of molten steel becomes before entering the aluminum base metal liquid runner, be cooled to 500 ℃, steel backing in the aluminum base metal liquid runner and the diffusion reaction time between the aluminium 28 plumbous coating be that the cooling velocity of 20s, rolling mill roll is 600 ℃/min, the interface shear strength of the steel backing aluminium 28 plumbous composite plates that obtain is 64MPa.
Embodiment four
With the difference of embodiment one be: the steel plate that solidification of molten steel becomes before entering the aluminum base metal liquid runner, be cooled to 450 ℃, steel backing in the aluminum base metal liquid runner and the diffusion reaction time between the aluminium 28 plumbous coating be that the cooling velocity of 15s, rolling mill roll is 700 ℃/min, the interface shear strength of the steel backing aluminium 28 plumbous composite plates that obtain is 62MPa.
Claims (3)
1. a steel back aluminium composite plate liquid-liquid phase level casting rolling complex method is characterized in that, it is compound that compound pouring mouth of complex method employing level of the present invention and milling train carry out the level casting rolling of molten steel and aluminum base metal liquid, and concrete steps are as follows:
Step 1, the cooling system of connection compound pouring mouth of water-cooled and rolling mill roll;
Step 2 starts milling train, rolling mill speed is transferred to and remains on realization " race is rolled " speed;
Step 3, molten steel runner and the aluminum base metal liquid runner that will pour the compound pouring mouth of water-cooled respectively into through the molten steel and the aluminum base metal liquid of degassing processing carry out " race is rolled ";
Step 4, after " race is rolled ", reduce mill speed, make molten steel be frozen into steel plate under the cooling effect of molten steel cooling chamber and before it enters the aluminum base metal liquid runner, be cooled to 550～450 ℃, steel backing forms steel back aluminium composite plate through the rolling mill roll casting in the aluminum base metal liquid runner and after carrying out the diffusion reaction of 15～25s between the aluminium base coating.
2. a kind of steel back aluminium composite plate liquid-liquid phase level casting rolling complex method according to claim 1 is characterized in that the temperature of aluminum base metal liquid is 700 ℃, and " race is rolled " time is 1 minute, and the cooling velocity of rolling mill roll is 400～800 ℃/min.
3. steel back aluminium composite plate liquid-liquid phase level casting rolling set composite, this device comprises: the compound pouring mouth of water-cooled (1), milling train (10) and support (12); Rolling mill roll (11) is an inner-cooled water-cooled roll, and roller shell is copper roller shell; It is characterized in that:
The compound pouring mouth of water-cooled (1) adopts mechanical connection manner to be fixed on the support (12), its material is a graphite, be provided with molten steel runner (2) and aluminum base metal liquid runner (3) in the compound pouring mouth of water-cooled (1), the thickness a of molten steel runner (2) is the thickness of steel back aluminium composite plate steel backing, the thickness b of aluminum base metal liquid runner (3) is the thickness of steel back aluminium composite plate (9), the lower end thickness of molten steel cast gate also is the thickness of steel back aluminium composite plate steel backing for a, and the lower end thickness e of aluminum base metal liquid cast gate is that b-a is the aluminium base coating layer ranges in thickness of steel back aluminium composite plate; The beneath of molten steel runner (2) is molten steel cooling chamber (4), molten steel cooling chamber (4) two sides are provided with into water swivel (5) and water out adapter (6), be connected with pipeline, joint door, water pump, cooling pond, form the circulating cooling system of the compound pouring mouth of water-cooled, finish molten steel (7) cooling and cooling, the length of molten steel cooling chamber (4) is that the length d of molten steel runner (2) is the amassing of time that mill speed and molten steel need cool off, and the length f of aluminum base metal liquid runner (3) is that the diffusion reaction time between mill speed and steel backing and the aluminium base coating is long-pending; The width of the width of the width of molten steel runner (2), aluminum base metal liquid runner (3), the width of molten steel cast gate, aluminum base metal liquid cast gate, the width of molten steel cooling chamber (4) are the width g of steel back aluminium composite plate (9); The compound pouring mouth of water-cooled (1) front end is circular arc with rolling mill roll (11) and contacts, and the gap c between its arc surface and rolling mill roll (11) arc surface is less than 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610112760 CN1911543A (en) | 2006-09-01 | 2006-09-01 | Liquid-liquid phase level casting rolling composite method and device of steel back aluminium base compound plate |
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| CN 200610112760 CN1911543A (en) | 2006-09-01 | 2006-09-01 | Liquid-liquid phase level casting rolling composite method and device of steel back aluminium base compound plate |
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| CN1911543A true CN1911543A (en) | 2007-02-14 |
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| CN 200610112760 Pending CN1911543A (en) | 2006-09-01 | 2006-09-01 | Liquid-liquid phase level casting rolling composite method and device of steel back aluminium base compound plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101780532B (en) * | 2009-12-30 | 2012-10-24 | 中国第一重型机械股份公司 | Continuous casting method of liquid-phase composite slab |
| CN111151575A (en) * | 2018-11-07 | 2020-05-15 | 东莞东阳光科研发有限公司 | Compounding equipment and compounding method for aluminum-based composite plate strip |
-
2006
- 2006-09-01 CN CN 200610112760 patent/CN1911543A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101780532B (en) * | 2009-12-30 | 2012-10-24 | 中国第一重型机械股份公司 | Continuous casting method of liquid-phase composite slab |
| CN111151575A (en) * | 2018-11-07 | 2020-05-15 | 东莞东阳光科研发有限公司 | Compounding equipment and compounding method for aluminum-based composite plate strip |
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Open date: 20070214 |