CN100392128C - Novel composite aluminium alloy plates and prepn. method - Google Patents
Novel composite aluminium alloy plates and prepn. method Download PDFInfo
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- CN100392128C CN100392128C CNB200610009960XA CN200610009960A CN100392128C CN 100392128 C CN100392128 C CN 100392128C CN B200610009960X A CNB200610009960X A CN B200610009960XA CN 200610009960 A CN200610009960 A CN 200610009960A CN 100392128 C CN100392128 C CN 100392128C
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Abstract
The present invention relates to a novel composite aluminum alloy plate material and a preparation method thereof, which is a composite alloy plate material and a preparation method thereof. The present invention solves the problems of the low mechanical property, the low yield rate, etc. of the existing composite aluminum alloy plate material; an upper coating layer and a lower coating layer, which are positioned at the upper end and the lower end of the novel composite aluminum alloy plate material, are prepared from the following compounds by the weight percentage: 9.4 to 10% of silicon, 0.4% of ferrum, 0.2% of copper, 0.1% of manganese, 1.2 to 1.8% of magnesium, 0.2% of zinc and aluminum as the rest, a core layer positioned in the center of the novel composite aluminum alloy plate material is prepared from the following compounds by the weight percentage: 0.4% of silicon, 0.4 to 0.6% of ferrum, 0.07 to 0.15% of copper, 1.1 to 1.3% of manganese, 0.02 to 0.03% of titanium and aluminum alloy as the rest, and the thickness rate of the three-layer aluminum alloy plate material is 1:2.5 to 13:1 from up to down. The preparation method comprises: (1) the respective smelting of alloy casting blocks; (2) the casting of casing plates; (3) the heating and the rolling of the casing plates used for the upper coating layer and the lower coating layer; (4) corrosion wash and welding; (5) hot rolling; (6) cold rolling; (7) the intermediate annealing of a semifinished product and then rolling to obtain a finished product. The present invention has good mechanical property, and the yield rate of the present invention is enhanced by above 15%.
Description
Technical field
The present invention relates to a kind of composite alloy sheet material and preparation method thereof, especially MULTILAYER COMPOSITE sheet alloy and preparation method thereof.
Background technology
Existing MULTILAYER COMPOSITE aluminum alloy plate materials has the vast market space, but its mechanical property is low, yield rate is low, production technique is unstable, there are surface quality problems such as greasy dirt, sticking wound in plate surface, and can't determine rational cold working rate, cause the MULTILAYER COMPOSITE aluminum alloy plate materials can't widespread use.
Summary of the invention
The objective of the invention is that existing MULTILAYER COMPOSITE aluminum alloy plate materials mechanical property is low, yield rate is low, production technique is unstable in order to solve, can't determine rational cold working rate, there is the defective of surface quality problems such as greasy dirt, sticking wound in plate surface, and a kind of composite aluminium alloy plates that provides and preparation method thereof.Composite aluminium alloy plates is made by the mutually horizontal three layers of parallel aluminum alloy plate materials of cross section, and the last coating layer at two ends and following coating layer are all made by 9.40～10.00% silicon, 0.40% iron, 0.20% copper, 0.10% manganese, 1.20～1.80% magnesium, 0.20% zinc, the aluminium alloy that surplus is aluminium by weight percentage about being positioned at; Sandwich layer between last coating layer and following coating layer is made by 0.40% silicon, 0.40～0.60% iron, 0.07～0.15% copper, 1.1～1.3% manganese, 0.02～0.03% titanium, the aluminium alloy that surplus is aluminium by weight percentage; The thickness of three layers of aluminum alloy plate materials is 1: 2.5～13: 1 than from top to bottom.Composite aluminium alloy plates prepares according to the following steps: (one) will be by weight percentage all by 9.40～10.00% silicon, 0.40% iron, 0.20% copper, 0.10% manganese, 1.20～1.80% magnesium, 0.20% zinc, surplus is that the last coating layer aluminium alloy ingot bar made of aluminium and following coating layer aluminium alloy ingot bar reach by weight percentage by 0.40% silicon, 0.40～0.60% iron, 0.07～0.15% copper, 1.1～1.3% manganese, 0.02～0.03% titanium, surplus is the core-layer aluminum alloy ingot bar melting under 690～800 ℃ of conditions respectively that aluminium is made; (2) and then under 690～750 ℃ of conditions, be cast as the identical cast panel of cross-sectional dimension; (3) will be used to make the cast panel of coating layer and the cast panel of following coating layer and under 500 ± 10 ℃ of conditions, heat 6～8h, then be rolled under 410～450 ℃ of conditions thickness all be 45～55mm on coating layer aluminium alloy plate and following coating layer aluminium alloy plate; (4) upper and lower surface that will go up the coating layer aluminium alloy plate, covers the sandwich layer cast panel after down the erosion of coating layer aluminium alloy plate is washed is carried out seam; (5) alloy sheets after the seam is rolled into the blank that thickness is 8.0 ± 0.2mm under 430～480 ℃ condition; (6) blank is batched at room temperature cold rolling; (7) cold rollingly make behind the work in-process that process annealing 8 ± 0.5h is cooled to room temperature again under 500 ± 10 ℃ of conditions, it is thick to be rolled into 0.6～1.6mm afterwards, shears through finishing, biserial, promptly obtains composite aluminium alloy plates.
The present invention has determined that rational cold working rate is 15%～35%, stable processing technique, and there are not surface quality problems such as greasy dirt, sticking wound in plate surface.The product good mechanical property that the present invention prepares, than existing product intensity improved 10～15%, toughness increased by 5～10%, and yield rate has improved more than 15%.
Embodiment
Embodiment one: the present embodiment composite aluminium alloy plates is made by the mutually horizontal three layers of parallel aluminum alloy plate materials of cross section, and the last coating layer at two ends and following coating layer are all made by 9.40～10.00% silicon, 0.40% iron, 0.20% copper, 0.10% manganese, 1.20～1.80% magnesium, 0.20% zinc, the aluminium alloy that surplus is aluminium by weight percentage about being positioned at; Sandwich layer between last coating layer and following coating layer is made by 0.40% silicon, 0.40～0.60% iron, 0.07～0.15% copper, 1.1～1.3% manganese, 0.02～0.03% titanium, the aluminium alloy that surplus is aluminium by weight percentage; The thickness of three layers of aluminum alloy plate materials is 1: 2.5～13: 1 than from top to bottom.
Embodiment two: the difference of present embodiment and embodiment one is: the thickness of three layers of aluminum alloy plate materials is 1: 4～9: 1 than from top to bottom.Other is identical with embodiment one.
Embodiment three: present embodiment prepares composite aluminium alloy plates according to the following steps: (one) will be by weight percentage all by 9.40～10.00% silicon, 0.40% iron, 0.20% copper, 0.10% manganese, 1.20～1.80% magnesium, 0.20% zinc, surplus is that the last coating layer aluminium alloy ingot bar made of aluminium and following coating layer aluminium alloy ingot bar reach by weight percentage by 0.40% silicon, 0.40～0.60% iron, 0.07～0.15% copper, 1.1～1.3% manganese, 0.02～0.03% titanium, surplus is the core-layer aluminum alloy ingot bar melting under 690～800 ℃ of conditions respectively that aluminium is made; (2) and then under 690～750 ℃ of conditions, be cast as the identical cast panel of cross-sectional dimension; (3) will be used to make the cast panel of coating layer and the cast panel of following coating layer and under 500 ± 10 ℃ of conditions, heat 6～8h, then be rolled under 410～450 ℃ of conditions thickness all be 45～55mm on coating layer aluminium alloy plate and following coating layer aluminium alloy plate; (4) upper and lower surface that will go up the coating layer aluminium alloy plate, covers the sandwich layer cast panel after down the erosion of coating layer aluminium alloy plate is washed is carried out seam; (5) alloy sheets after the seam is rolled into the blank that thickness is 8.0 ± 0.2mm under 430～480 ℃ condition; (6) blank is batched at room temperature cold rolling; (7) cold rollingly make behind the work in-process that process annealing 8 ± 0.5h is cooled to room temperature again under 500 ± 10 ℃ of conditions, it is thick to be rolled into 0.6～1.6mm afterwards, shears through finishing, biserial, promptly obtains composite aluminium alloy plates.
Embodiment four: the difference of present embodiment and embodiment three is: be used to make the aluminium alloy ingot bar of coating layer, the aluminium alloy ingot bar of sandwich layer and the aluminium alloy ingot bar melting under 710～780 ℃ of conditions respectively of following coating layer in the step ().Other step is identical with embodiment three.
Embodiment five: the difference of present embodiment and embodiment three is: be used to make the aluminium alloy ingot bar of coating layer, the aluminium alloy ingot bar of sandwich layer and the aluminium alloy ingot bar melting under 730～760 ℃ of conditions respectively of following coating layer in the step ().Other step is identical with embodiment three.
Embodiment six: the difference of present embodiment and embodiment three is: step (two) is cast cast panel under 710～730 ℃ of conditions.Other step is identical with embodiment three.
Embodiment seven: the difference of present embodiment and embodiment three is: step (two) is cast cast panel under 715～725 ℃ of conditions.Other step is identical with embodiment three.
Embodiment eight: the difference of present embodiment and embodiment three is: the cross-sectional dimension of cast panel is 300mm * 1370mm, 300mm * 1320mm or 300mm * 1240mm in the step (two).Other step is identical with embodiment three.
Embodiment nine: the difference of present embodiment and embodiment three is: cast panel heats 7h under 500 ℃ of conditions in the step (three), then be rolled under 420～440 ℃ of conditions thickness all be 47～54mm on coating layer aluminium alloy plate and following coating layer aluminium alloy plate.Other step is identical with embodiment three.
Embodiment ten: the difference of present embodiment and embodiment three is: the alloy sheets in the step (five) after the seam is rolled into the blank that thickness is 8.0mm under 440～470 ℃ condition.Other step is identical with embodiment three.
Embodiment 11: the difference of present embodiment and embodiment three is: in the step (seven) after the process annealing composite aluminium alloy plates to be rolled into 0.8～1.4mm thick.Other step is identical with embodiment three.
Embodiment 12: the difference of present embodiment and embodiment three is: in the step (seven) after the process annealing composite aluminium alloy plates to be rolled into 1.0～1.2mm thick.Other step is identical with embodiment three.
Embodiment 13: the difference of present embodiment and embodiment three is: during step (four) seam weld seam be full weld and can not deflection on the sandwich layer cast panel.Other step is identical with embodiment three.
Embodiment 14: the difference of present embodiment and embodiment three is: step (seven) work in-process process annealing 8h under 500 ℃ of conditions is cooled to room temperature again.Other step is identical with embodiment three.
Claims (9)
1. composite aluminium alloy plates, composite aluminium alloy plates is made by the mutually horizontal three layers of parallel aluminum alloy plate materials of cross section, and the last coating layer and the following coating layer at two ends are all made by 9.40～10.00% silicon, 0.40% iron, 0.20% copper, 0.10% manganese, 1.20～1.80% magnesium, 0.20% zinc, the aluminium alloy that surplus is aluminium by weight percentage about it is characterized in that being positioned at; Sandwich layer between last coating layer and following coating layer is made by 0.40% silicon, 0.40～0.60% iron, 0.07～0.15% copper, 1.1～1.3% manganese, 0.02～0.03% titanium, the aluminium alloy that surplus is aluminium by weight percentage; The thickness of three layers of aluminum alloy plate materials is 1: 2.5～13: 1 than from top to bottom.
2. a kind of composite aluminium alloy plates according to claim 1, the thickness that it is characterized in that three layers of aluminum alloy plate materials is 1: 4～9: 1 than from top to bottom.
3. the preparation method of a composite aluminium alloy plates is characterized in that composite aluminium alloy plates prepares according to the following steps: (one) will be by weight percentage all by 9.40～10.00% silicon, 0.40% iron, 0.20% copper, 0.10% manganese, 1.20～1.80% magnesium, 0.20% zinc, surplus is that the last coating layer aluminium alloy ingot bar made of aluminium and following coating layer aluminium alloy ingot bar reach by weight percentage by 0.40% silicon, 0.40～0.60% iron, 0.07～0.15% copper, 1.1～1.3% manganese, 0.02～0.03% titanium, surplus is the core-layer aluminum alloy ingot bar melting under 690～800 ℃ of conditions respectively that aluminium is made; (2) and then under 690～750 ℃ of conditions, be cast as the identical cast panel of cross-sectional dimension; (3) will be used to make the cast panel of coating layer and the cast panel of following coating layer and under 500 ± 10 ℃ of conditions, heat 6～8h, then be rolled under 410～450 ℃ of conditions thickness all be 45～55mm on coating layer aluminium alloy plate and following coating layer aluminium alloy plate; (4) upper and lower surface that will go up the coating layer aluminium alloy plate, covers the sandwich layer cast panel after down the erosion of coating layer aluminium alloy plate is washed is carried out seam; (5) alloy sheets after the seam is rolled into the blank that thickness is 8.0 ± 0.2mm under 430～480 ℃ condition; (6) blank is batched at room temperature cold rolling; (7) cold rollingly make behind the work in-process that process annealing 8 ± 0.5h is cooled to room temperature again under 500 ± 10 ℃ of conditions, it is thick to be rolled into 0.6～1.6mm afterwards, shears through finishing, biserial, promptly obtains composite aluminium alloy plates.
4. the preparation method of a kind of composite aluminium alloy plates according to claim 3 is characterized in that being used to make the aluminium alloy ingot bar of coating layer, the aluminium alloy ingot bar of sandwich layer and the aluminium alloy ingot bar melting under 710～780 ℃ of conditions respectively of following coating layer in the step ().
5. the preparation method of a kind of composite aluminium alloy plates according to claim 3 is characterized in that step (two) casts cast panel under 710～730 ℃ of conditions.
6. the preparation method of a kind of composite aluminium alloy plates according to claim 3 is characterized in that the cross-sectional dimension of cast panel in the step (two) is 300mm * 1370mm, 300mm * 1320mm or 300mm * 1240mm.
7. the preparation method of a kind of composite aluminium alloy plates according to claim 3, it is characterized in that cast panel heats 7h under 500 ℃ of conditions in the step (three), then be rolled under 420～440 ℃ of conditions thickness all be 47～54mm on coating layer aluminium alloy plate and following coating layer aluminium alloy plate.
8. the preparation method of a kind of composite aluminium alloy plates according to claim 3 is characterized in that the alloy sheets after the seam is rolled into the blank that thickness is 8.0mm in the step (five) under 440～470 ℃ condition.
9. the preparation method of a kind of composite aluminium alloy plates according to claim 3, when it is characterized in that step (four) seam weld seam be full weld and can not deflection on the sandwich layer cast panel.
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| CNB200610009960XA CN100392128C (en) | 2006-04-25 | 2006-04-25 | Novel composite aluminium alloy plates and prepn. method |
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| CNB200610009960XA CN100392128C (en) | 2006-04-25 | 2006-04-25 | Novel composite aluminium alloy plates and prepn. method |
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| CN100392128C true CN100392128C (en) | 2008-06-04 |
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| CN101049745B (en) * | 2007-05-11 | 2012-07-25 | 西南大学 | Composite magnesium plate ribbon of magnesium clad aluminum product and composition method |
| CN100589892C (en) * | 2008-03-26 | 2010-02-17 | 哈尔滨工业大学 | Method for manufacturing ultra-fine crystal magnesium/titanium layered polystyrene-plywood laminate |
| CN101530860B (en) * | 2009-04-13 | 2011-05-04 | 西安建筑科技大学 | Method for preparing aluminum-magnesium ultrafine crystal composite plate with multilayer structure |
| CN102039906B (en) * | 2009-10-14 | 2013-05-29 | 青岛四方庞巴迪铁路运输设备有限公司 | Welding method of skirtboard structure of underframe equipment cabin |
| JP5491927B2 (en) * | 2010-03-29 | 2014-05-14 | 株式会社神戸製鋼所 | Aluminum alloy brazing sheet |
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| CN105751623A (en) * | 2016-03-14 | 2016-07-13 | 海安县华达铝型材有限公司 | Composite aluminum alloy strip |
| CN105964720A (en) * | 2016-05-04 | 2016-09-28 | 国网新疆电力公司哈密供电公司 | Preparation method of electric steel board |
| CN110576072B (en) * | 2018-06-09 | 2021-02-12 | 南京理工大学 | Preparation method of multilayer pure copper-brass composite board |
| CN109957690B (en) * | 2019-05-09 | 2020-11-10 | 广西南南铝加工有限公司 | Preparation method of aluminum alloy composite material for electronic product appearance part |
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