CN102734625A - Steel-aluminum composite board and preparation method thereof - Google Patents
Steel-aluminum composite board and preparation method thereof Download PDFInfo
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- CN102734625A CN102734625A CN2012102468619A CN201210246861A CN102734625A CN 102734625 A CN102734625 A CN 102734625A CN 2012102468619 A CN2012102468619 A CN 2012102468619A CN 201210246861 A CN201210246861 A CN 201210246861A CN 102734625 A CN102734625 A CN 102734625A
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Abstract
The invention relates to a steel-aluminum composite board which is formed by compounding a steel belt and an aluminum alloy belt, wherein the steel belt comprises the following components in percentage by weight: less than or equal to 0.012% of C, less than or equal to 0.025% of Si, 0.10-0.30% of Mn, less than or equal to 0.018% of P and less than or equal to 0.010% of S; and the aluminum alloy belt comprises the following components in percentage by weight: 0.75-0.85% of Si, 0.36-0.45% of Fe, less than 0.05% of Cu and less than or equal to 0.03% of Mn. The preparation method comprises the following steps of: a, pretreatment; b, compounding rolling; and c, recrystallizing and annealing. Through the invention, the prepared steel-aluminum composite board has excellent mechanical performance index, and the bonding strength between the steel belt and the aluminum alloy is guaranteed after the brazing of a cooler fin.
Description
Technical field
The present invention relates to a kind of Steel-aluminium composite board and preparation method thereof.
Background technique
At present the preparation method of Steel-aluminium composite board have usually that steel band hot dipping, thermal spraying, blast are rolling, cold rolling etc.; The prepared Steel-aluminium composite board of above method is second-rate; It all exists pin hole, composite bed to be mingled with, to form a series of problems such as short iron aluminum metallization compound in various degree; And can on steel aluminium interface, generate intermetallic compounds in brazing process with the prepared Steel-aluminium composite board of said method, cause the layering of steel aluminium, so can't be used in soldering tech.
Summary of the invention
Technical problem to be solved by this invention is: a kind of Steel-aluminium composite board and preparation method thereof is provided, and prepared Steel-aluminium composite board quality is better, and goes for soldering tech.
For addressing the above problem; The technological scheme that the present invention adopts is: Steel-aluminium composite board; Be composited by steel band and aluminum alloy strip, the weight percentage of C content is not more than 0.012% in the said steel band, the weight percentage of Si content is not more than 0.025%, the weight percentage of Mn content is 0.10～0.30%, the weight percentage of P content is not more than 0.018%, the weight percentage of S content is not more than 0.010%; The weight percentage of Si content is 0.75～0.85% in the said aluminum alloy strip, the weight percentage of Fe content is 0.36～0.45%, the weight percentage of Cu content less than 0.05%, the weight percentage of Mn content is not more than 0.03%.
The thickness of said aluminum alloy strip is 50～90um.
The preparation method of described Steel-aluminium composite board comprises the steps:
A, pretreatment is carried out on the surface of steel band and aluminum alloy strip;
B, will pass through steel band and aluminum alloy strip after the surface preparation and together send into composite rolling mill and carry out composite rolling, the pressure of composite rolling is 600～1000t, and the single pass reduction ratio is 50%～56%, and mill speed is not less than 20m/min;
C, recrystallization annealing: annealing temperature is 500～550 ℃, and the temperature rise time is 16～18 hours, and the annealing holding time is 13～15 hours, promptly obtains Steel-aluminium composite board.
In the said a step; The steel band pretreatment: steel band is carried out pickling, water cleaning and ultrasonic cleaning successively, and with three road Stainless Steel Wire brush rolls polishings, the diameter of Stainless Steel Wire brush roll is 300mm then; The stainless steel steel wire diameter is 0.5mm, and the brush roll linear velocity is 30～40m/s.
In the said a step, the aluminum alloy strip pretreatment: select high cleanliness for use and through the aluminum alloy of ungrease treatment with three road Stainless Steel Wire brush rolls polishings, the diameter of Stainless Steel Wire brush roll is 300mm, the stainless steel steel wire diameter is 0.2mm, the brush roll linear velocity is 15～20m/s.
In the said c step, recrystallization annealing is with the smooth Steel-aluminium composite board of hydraulic pressure leveler, and smooth rate is 2%～3%, and smooth speed is not less than 60m/min.
The invention has the beneficial effects as follows: adopt the steel band and the aluminum alloy strip of special component to prepare Steel-aluminium composite board; Content through P and S in the control steel band; Hazardous compound quantity is reduced, pass through special preparation method again, strengthen the density that combines of aluminum alloy strip and steel band; Improve adhesive strength; Thereby can obtain excellent mechanical performance index, not see existence such as pin hole, composite bed are mingled with, short iron aluminum metallization compound, and guarantee the adhesive strength between the steel band and aluminum alloy strip after the soldering cooler fin.Through test, prepared Steel-aluminium composite board has following mechanical property: yield strength (Y.S) >=260Mpa, and tensile strength (T.S) is 320～380Mpa, elongation percentage (EL)＞30%, 180 ° of aluminum alloy strips of alternating bending and steel band are not stratified.
Embodiment
Through specific embodiment Steel-aluminium composite board of the present invention and preparation method thereof is done further to describe in detail below.
Embodiment 1
Steel-aluminium composite board; Be composited by steel band and aluminum alloy strip, the weight percentage of C content is 0.005% in the said steel band, the weight percentage of Si content is 0.010%, the weight percentage of Mn content is 0.10%, the weight percentage of P content is 0.008%, the weight percentage of S content is 0.006%; The weight percentage of Si content is 0.75% in the said aluminum alloy strip, the weight percentage of Fe content is 0.36%, the weight percentage of Cu content is 0.02%, the weight percentage of Mn content is 0.03%.
The thickness of said aluminum alloy strip is 50um.
The preparation method of described Steel-aluminium composite board comprises the steps:
A, pretreatment is carried out on the surface of steel band and aluminum alloy strip;
B, will pass through steel band and aluminum alloy strip after the surface preparation and together send into composite rolling mill and carry out composite rolling, the pressure of composite rolling is 600t, and the single pass reduction ratio is 50%, and mill speed is 20m/min;
C, recrystallization annealing: annealing temperature is 500 ℃, and the temperature rise time is 16 hours, and the annealing holding time is 14 hours, promptly obtains Steel-aluminium composite board.
In the said a step, the steel band pretreatment: steel band is carried out pickling, water cleaning and ultrasonic cleaning successively, and with three road Stainless Steel Wire brush rolls polishings, the diameter of Stainless Steel Wire brush roll is 300mm then, and the stainless steel steel wire diameter is 0.5mm, and the brush roll linear velocity is 30m/s.
In the said a step, the aluminum alloy strip pretreatment: select high cleanliness for use and through the aluminum alloy of ungrease treatment with three road Stainless Steel Wire brush rolls polishings, the diameter of Stainless Steel Wire brush roll is 300mm, the stainless steel steel wire diameter is 0.2mm, the brush roll linear velocity is 15m/s.
In the said c step, recrystallization annealing is with the smooth Steel-aluminium composite board of hydraulic pressure leveler, and smooth rate is 2%, and smooth speed is 60m/min.
Embodiment 2
Steel-aluminium composite board; Be composited by steel band and aluminum alloy strip, the weight percentage of C content is 0.008% in the said steel band, the weight percentage of Si content is 0.020%, the weight percentage of Mn content is 0.20%, the weight percentage of P content is 0.012%, the weight percentage of S content is 0.002%; The weight percentage of Si content is 0.80% in the said aluminum alloy strip, the weight percentage of Fe content is 0.40%, the weight percentage of Cu content is 0.03%, the weight percentage of Mn content is 0.01%.
The thickness of said aluminum alloy strip is 70um.
The preparation method of described Steel-aluminium composite board comprises the steps:
A, pretreatment is carried out on the surface of steel band and aluminum alloy strip;
B, will pass through steel band and aluminum alloy strip after the surface preparation and together send into composite rolling mill and carry out composite rolling, the pressure of composite rolling is 800t, and the single pass reduction ratio is 53%, and mill speed is 15m/min;
C, recrystallization annealing: annealing temperature is 525 ℃, and the temperature rise time is 17 hours, and the annealing holding time is 15 hours, promptly obtains Steel-aluminium composite board.
In the said a step, the steel band pretreatment: steel band is carried out pickling, water cleaning and ultrasonic cleaning successively, and with three road Stainless Steel Wire brush rolls polishings, the diameter of Stainless Steel Wire brush roll is 300mm then, and the stainless steel steel wire diameter is 0.5mm, and the brush roll linear velocity is 35m/s.
In the said a step, the aluminum alloy strip pretreatment: select high cleanliness for use and through the aluminum alloy of ungrease treatment with three road Stainless Steel Wire brush rolls polishings, the diameter of Stainless Steel Wire brush roll is 300mm, the stainless steel steel wire diameter is 0.2mm, the brush roll linear velocity is 18m/s.
In the said c step, recrystallization annealing is with the smooth Steel-aluminium composite board of hydraulic pressure leveler, and smooth rate is 3%, and smooth speed is 80m/min.
Embodiment 3
Steel-aluminium composite board; Be composited by steel band and aluminum alloy strip, the weight percentage of C content is 0.012% in the said steel band, the weight percentage of Si content is 0.025%, the weight percentage of Mn content is 0.30%, the weight percentage of P content is 0.018%, the weight percentage of S content is 0.010%; The weight percentage of Si content is 0.85% in the said aluminum alloy strip, the weight percentage of Fe content is 0.45%, the weight percentage of Cu content is 0.04%, the weight percentage of Mn content is 0.03%.
The thickness of said aluminum alloy strip is 90um.
The preparation method of described Steel-aluminium composite board comprises the steps:
A, pretreatment is carried out on the surface of steel band and aluminum alloy strip;
B, will pass through steel band and aluminum alloy strip after the surface preparation and together send into composite rolling mill and carry out composite rolling, the pressure of composite rolling is 1000t, and the single pass reduction ratio is 50%, and mill speed is 20m/min;
C, recrystallization annealing: annealing temperature is 550 ℃, and the temperature rise time is 18 hours, and the annealing holding time is 13 hours, promptly obtains Steel-aluminium composite board.
In the said a step, the steel band pretreatment: steel band is carried out pickling, water cleaning and ultrasonic cleaning successively, and with three road Stainless Steel Wire brush rolls polishings, the diameter of Stainless Steel Wire brush roll is 300mm then, and the stainless steel steel wire diameter is 0.5mm, and the brush roll linear velocity is 40m/s.
In the said a step, the aluminum alloy strip pretreatment: select high cleanliness for use and through the aluminum alloy of ungrease treatment with three road Stainless Steel Wire brush rolls polishings, the diameter of Stainless Steel Wire brush roll is 300mm, the stainless steel steel wire diameter is 0.2mm, the brush roll linear velocity is 20m/s.
In the said c step, recrystallization annealing is with the smooth Steel-aluminium composite board of hydraulic pressure leveler, and smooth rate is 3%, and smooth speed is 100m/min.
Through test, prepared Steel-aluminium composite board has following mechanical property: yield strength (Y.S) >=260Mpa, and tensile strength (T.S) is 320～380Mpa, elongation percentage (EL)＞30%, 180 ° of aluminum alloys of alternating bending and steel are not stratified.
The above embodiments are the principle and the effect thereof of illustrative the invention only, and the embodiment of part utilization, but not is used to limit the present invention; Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the invention design, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (6)
1. Steel-aluminium composite board; Be composited by steel band and aluminum alloy strip, it is characterized in that: the weight percentage of C content is not more than 0.012% in the said steel band, the weight percentage of Si content is not more than 0.025%, the weight percentage of Mn content is 0.10～0.30%, the weight percentage of P content is not more than 0.018%, the weight percentage of S content is not more than 0.010%; The weight percentage of Si content is 0.75～0.85% in the said aluminum alloy strip, the weight percentage of Fe content is 0.36～0.45%, the weight percentage of Cu content less than 0.05%, the weight percentage of Mn content is not more than 0.03%.
2. Steel-aluminium composite board according to claim 1 is characterized in that: the thickness of said aluminum alloy strip is 50～90um.
3. the preparation method of Steel-aluminium composite board according to claim 1 and 2 is characterized in that: comprise the steps:
A, pretreatment is carried out on the surface of steel band and aluminum alloy strip;
B, will pass through steel band and aluminum alloy strip after the surface preparation and together send into composite rolling mill and carry out composite rolling, the pressure of composite rolling is 600～1000t, and the single pass reduction ratio is 50%～56%, and mill speed is not less than 20m/min;
C, recrystallization annealing: annealing temperature is 500～550 ℃, and the temperature rise time is 16～18 hours, and the annealing holding time is 13～15 hours, promptly obtains Steel-aluminium composite board.
4. the preparation method of Steel-aluminium composite board according to claim 3; It is characterized in that: in the said a step; The steel band pretreatment: steel band is carried out pickling, water cleaning and ultrasonic cleaning successively, and with three road Stainless Steel Wire brush rolls polishings, the diameter of Stainless Steel Wire brush roll is 300mm then; The stainless steel steel wire diameter is 0.5mm, and the brush roll linear velocity is 30～40m/s.
5. the preparation method of Steel-aluminium composite board according to claim 3; It is characterized in that: in the said a step; The aluminum alloy strip pretreatment: select high cleanliness for use and through the aluminum alloy of ungrease treatment with three road Stainless Steel Wire brush rolls polishings; The diameter of Stainless Steel Wire brush roll is 300mm, and the stainless steel steel wire diameter is 0.2mm, and the brush roll linear velocity is 15～20m/s.
6. the preparation method of Steel-aluminium composite board according to claim 3, it is characterized in that: in the said c step, recrystallization annealing is with the smooth Steel-aluminium composite board of hydraulic pressure leveler, and smooth rate is 2%～3%, and smooth speed is not less than 60m/min.
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| CN103084387A (en) * | 2013-01-16 | 2013-05-08 | 上海骏禾材料科技有限公司 | Continuous composite preparation method for aluminum, aluminum alloy and stainless steel |
| CN103599931A (en) * | 2013-11-20 | 2014-02-26 | 银邦金属复合材料股份有限公司 | Processing technique of aluminum-clad steel pipe material |
| CN103920742A (en) * | 2014-04-18 | 2014-07-16 | 东风汽车公司 | Preparation method of hollow profile substrate |
| CN104801859A (en) * | 2014-01-27 | 2015-07-29 | 上海却尘科技有限公司 | Manufacturing method for blank for producing steel-aluminum composite board |
| CN107716549A (en) * | 2017-11-02 | 2018-02-23 | 洛阳铜鑫复合材料科技有限公司 | A kind of steel combined with aluminum strip and its production method |
| CN107881410A (en) * | 2016-09-30 | 2018-04-06 | 宝山钢铁股份有限公司 | A kind of excellent covering aluminum plate band of radiating effect and its production method |
| CN108501470A (en) * | 2018-02-06 | 2018-09-07 | 佛山市南海雷纳铝业有限公司 | A kind of fire-retardant steel combined with aluminum board core material and preparation method thereof |
| CN109127763A (en) * | 2018-07-23 | 2019-01-04 | 无锡银荣板业有限公司 | A kind of production method of aluminium/three layers of hot composite material of aluminium/stainless steel |
| CN109290371A (en) * | 2018-11-08 | 2019-02-01 | 瓯锟科技温州有限公司 | A kind of cold rolling manufacturing method of Copper-Aluminum compound strip |
| CN110883093A (en) * | 2019-10-23 | 2020-03-17 | 江阴康瑞成型技术科技有限公司 | Asynchronous cold rolling forming process for aluminum alloy stainless steel composite plate |
| CN111349849A (en) * | 2018-12-24 | 2020-06-30 | 宝山钢铁股份有限公司 | Aluminum-clad plate strip capable of inhibiting corrosion and manufacturing method thereof |
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| CN103084387A (en) * | 2013-01-16 | 2013-05-08 | 上海骏禾材料科技有限公司 | Continuous composite preparation method for aluminum, aluminum alloy and stainless steel |
| CN103599931A (en) * | 2013-11-20 | 2014-02-26 | 银邦金属复合材料股份有限公司 | Processing technique of aluminum-clad steel pipe material |
| CN104801859A (en) * | 2014-01-27 | 2015-07-29 | 上海却尘科技有限公司 | Manufacturing method for blank for producing steel-aluminum composite board |
| CN103920742A (en) * | 2014-04-18 | 2014-07-16 | 东风汽车公司 | Preparation method of hollow profile substrate |
| CN103920742B (en) * | 2014-04-18 | 2016-01-20 | 东风汽车公司 | A kind of hollow profile base material preparation method |
| CN107881410A (en) * | 2016-09-30 | 2018-04-06 | 宝山钢铁股份有限公司 | A kind of excellent covering aluminum plate band of radiating effect and its production method |
| CN107881410B (en) * | 2016-09-30 | 2019-12-27 | 宝山钢铁股份有限公司 | Aluminum-clad plate strip with excellent heat dissipation effect and production method thereof |
| CN107716549A (en) * | 2017-11-02 | 2018-02-23 | 洛阳铜鑫复合材料科技有限公司 | A kind of steel combined with aluminum strip and its production method |
| CN108501470A (en) * | 2018-02-06 | 2018-09-07 | 佛山市南海雷纳铝业有限公司 | A kind of fire-retardant steel combined with aluminum board core material and preparation method thereof |
| CN108501470B (en) * | 2018-02-06 | 2019-11-08 | 佛山市南海雷纳铝业有限公司 | A kind of fire-retardant steel combined with aluminum board core material and preparation method thereof |
| CN109127763A (en) * | 2018-07-23 | 2019-01-04 | 无锡银荣板业有限公司 | A kind of production method of aluminium/three layers of hot composite material of aluminium/stainless steel |
| CN109290371A (en) * | 2018-11-08 | 2019-02-01 | 瓯锟科技温州有限公司 | A kind of cold rolling manufacturing method of Copper-Aluminum compound strip |
| CN111349868A (en) * | 2018-12-24 | 2020-06-30 | 宝山钢铁股份有限公司 | Aluminum-clad plate strip and manufacturing method thereof |
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| CN111349849B (en) * | 2018-12-24 | 2021-10-19 | 宝山钢铁股份有限公司 | Aluminum-clad plate strip capable of inhibiting corrosion and manufacturing method thereof |
| CN111349849A (en) * | 2018-12-24 | 2020-06-30 | 宝山钢铁股份有限公司 | Aluminum-clad plate strip capable of inhibiting corrosion and manufacturing method thereof |
| CN111349869B (en) * | 2018-12-24 | 2021-10-22 | 宝山钢铁股份有限公司 | Steel for high-strength aluminum-coated substrate and manufacturing method thereof |
| CN110883093A (en) * | 2019-10-23 | 2020-03-17 | 江阴康瑞成型技术科技有限公司 | Asynchronous cold rolling forming process for aluminum alloy stainless steel composite plate |
| CN111850362A (en) * | 2020-07-27 | 2020-10-30 | 佛山金兰铝厂有限公司 | High-strength aluminum plate strip and production method thereof |
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Application publication date: 20121017 |