CN108296289A - A kind of composite rolling technique improving composite material interfacial weld - Google Patents
A kind of composite rolling technique improving composite material interfacial weld Download PDFInfo
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- CN108296289A CN108296289A CN201810032024.3A CN201810032024A CN108296289A CN 108296289 A CN108296289 A CN 108296289A CN 201810032024 A CN201810032024 A CN 201810032024A CN 108296289 A CN108296289 A CN 108296289A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
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Abstract
A kind of composite rolling technique improving composite material interfacial weld, is processed into identical size, wherein band A and band B are one kind in titanium, aluminium, copper and its alloy by band A and band B；The two is surface-treated, remove oxide on surface, surface treated face is opposite to be stacked to obtain A/B composite strips, then vacuum edge welding is carried out, it places into and is cooled to liquid nitrogen temperature in liquid nitrogen, then deep cooling rolling is carried out, realize that material interface generates a large amount of nanocrystal, the A/B composite strips that deep cooling rolls are put into room temperature environment and further carry out room temperature rolling, until total rolling reduction ratio reaches 80 95%, wherein one-pass roller reduction ratio is 20 30%, the present invention can prepare high-performance non-ferrous metal composite strip, it is suitable for nonferrous materials such as titanium, aluminium, it is prepared by the composite strip of the combinations of materials such as copper.The plank would be possible to for fields such as shellproof protection, aerospace, sound insulation and noise reduction, automotive light weight technologies.
Description
Technical field
The invention belongs to metallic composite rolling technical field, more particularly to a kind of raising composite material interface weldering
The composite rolling technique of conjunction.
Background technology
High-performance laminated-metal composite is constantly subjected to the highest attention that this field is gone together both at home and abroad, in shellproof guarantor
The fields such as shield, aerospace, sound insulation and noise reduction, automotive light weight technology have broad prospect of application.Plastic history laminate is compound
Material interface soldering situation determines the mechanics and corrosive nature of product.
Conventional metals stratiform composite plate generally uses explosion method.However, material interface quality is difficult to control.At the same time,
The technique is suitable only for preparing special thick composite plate.As the requirement that people reduce workpiece size, performance improves, quality mitigates increases
Add, urgent need develops very thin complex layered materials.Rolling compund is common method, there is method hot rolling method and cold under normal circumstances
Rolling compound method is relatively difficult to control, such product for the interface quality of the composite metal plate of both methods preparation
It only disclosure satisfy that low-end market, main cause are the combination that the interface of these products is mechanical soldering and metallurgical soldering, intensity
Bigger difference is still remained with the case where complete metallurgical binding.
Invention content
In order to overcome the disadvantages of the above prior art, the purpose of the present invention is to provide a kind of raising composite materials circle
The composite rolling technique of face soldering, the composite material prepared using this method, interface quality are rolled relative to tradition
Composite material interface prepared by method processed will greatly improve.This method will be suitable for the titanium of different model, aluminium, copper and its conjunction
The combination of gold, such as titanium/AA1050, copper/aluminum composite plate.
To achieve the goals above, the technical solution adopted by the present invention is：
A kind of composite rolling technique improving composite material interfacial weld, includes the following steps：
The first step：Using band A and band B as raw material, A and B are processed into identical length and width, wherein band
A and band B is one kind in titanium, aluminium, copper and its alloy；
Second step：Band A and band B are surface-treated using wire brush, remove oxide on surface；
Third walks：Band A and band B are stacked, A/B composite strips are obtained, wherein surface treated face phase
It is right；
4th step：A/B composite strips are put into vacuum, edge welding is carried out；
5th step：The A/B composite strips that edge is welded are put into liquid nitrogen and are cooled down, it is 10 minutes cooling or more, it realizes
Material temperature is uniformly cooled liquid nitrogen temperature；
6th step：A/B composite strips after cooling are subjected to deep cooling rolling, reduction ratio control realizes material in 10-15%
Interface generates a large amount of nanocrystal；
7th step：The A/B composite strips that deep cooling rolls are put into room temperature environment, wait for that it is warming up to room temperature；
8th step：Room temperature rolling is further carried out to A/B composite strips after heating, until total rolling reduction ratio reaches 80-
95%, wherein one-pass roller reduction ratio is 20-30%.
In the first step, the thickness of band A and band B is in 0.5-6mm before rolling.
In the first step, the material identical of the band A and band B or differ.
In the first step, the band A is identical with thickness before band B rollings or differs.
The cardinal principle of the present invention：(1) in the deep cooling operation of rolling, using between two kinds of metals performance difference and boundary
The feature of face soldering difference, realization form a large amount of nanocrystal at composite material interface；(2) energy during nanograin growth
Power discharges, and the principle for being conducive to interfacial weld realizes that material interface welding quality improves.
The present invention can prepare high-performance non-ferrous metal composite strip, be suitable for the materials such as nonferrous materials such as titanium, aluminium, copper
It is prepared by the composite strip of combination.The plank would be possible to for shellproof protection, aerospace, sound insulation and noise reduction, automotive light weight technology etc.
Field.
Description of the drawings
Fig. 1 is present invention process flow diagram.
Fig. 2 is titanium/aluminium composite material interface schematic diagram prepared by deep cooling rolling of the present invention.
Fig. 3 is titanium/aluminium composite material interface schematic diagram prepared by room temperature rolling of the present invention.
Specific implementation mode
The embodiment that the present invention will be described in detail with reference to the accompanying drawings and examples.
Embodiment 1：Pure titanium is prepared with fine aluminium composite strip
As shown in Figure 1, steps are as follows：
The first step：Using band A1 and band B2 as raw material, band A1 is industrially pure titanium strip, and band B2 is commercial-purity aluminium band
Material.The thickness of band A1 and band B2 is respectively 0.5mm and 1mm before rolling.Band A1 and band B2 are processed into identical
Size 0.2m (length) × 0.1m (width).
Second step：Band A1 and band B2 are surface-treated using wire brush, remove oxide on surface.
Third walks：Band A1 and band B2 are stacked, wherein surface treated face is opposite, the A/ stacked
B composite strips 3.
4th step：The A/B composite strips 3 of stacking are put into vacuum, edge welding is carried out.
5th step：The A/B composite strips that edge is welded are put into the deep cooling box 4 for fill liquid nitrogen 5 and are cooled down, cooling 10
Minute or more, realize that temperature is uniformly cooled liquid nitrogen temperature.
6th step：Using topping roll 1 and bottom roll 1, the A/B composite strip composite strips of subzero treatment are rolled
System, reduction ratio control realizes that material interface generates a large amount of nanocrystal 15%, as shown in Fig. 2, obtaining the A/ of deep cooling rolling
B composite strips 9.
7th step：The A/B composite strips 9 that deep cooling rolls are put into room temperature environment, wait for that it is warming up to room temperature.
8th step：Using topping roll 2 11 and bottom roll 2 12, to be warming up to the A/B composite strips 10 of room temperature further into
Row room temperature rolling, until total rolling reduction ratio is reached 85%, wherein one-pass roller reduction ratio is 20%.The boundary of final material
The complete soldering in face, as shown in Figure 3.
Tension test is carried out to titanium aluminum composite belt material prepared by the combination process, the tensile strength of the material is rolled than tradition
Tensile strength prepared by method improves 15%.
Embodiment 2：Copper is prepared with fine aluminium composite strip
As shown in Figure 1, steps are as follows：
The first step：Using band A1 and band B2 as raw material, band A1 is copper strip, and band B2 is commercial-purity aluminium band.It rolls
The thickness of band A1 and band B2 is respectively 2mm and 2mm before system.Band A1 and band B2 are processed into identical size
0.3m (length) × 0.1m (width).
Second step：Band A1 and band B2 are surface-treated using wire brush, remove oxide on surface.
Third walks：Band A1 and band B2 are stacked, wherein surface treated face is opposite, the A/ stacked
B composite strips 3.
4th step：The A/B composite strips 3 of stacking are put into vacuum, edge welding is carried out.
5th step：The A/B composite strips that edge is welded are put into the deep cooling box 4 for fill liquid nitrogen 5 and are cooled down, cooling 10
Minute or more, realize that temperature is uniformly cooled liquid nitrogen temperature.
6th step：Using topping roll 1 and bottom roll 1, the A/B composite strip composite strips of subzero treatment are rolled
System, reduction ratio control realize that material interface generates a large amount of nanocrystal, obtain the A/B composite strips of deep cooling rolling 20%
9。
7th step：The A/B composite strips 9 that deep cooling rolls are put into room temperature environment, wait for that it is warming up to room temperature.
8th step：Using topping roll 2 11 and bottom roll 2 12, to be warming up to the A/B composite strips 10 of room temperature further into
Row room temperature rolling, until total rolling reduction ratio is reached 90%, wherein one-pass roller reduction ratio is 25%.The boundary of final material
The complete soldering in face.
Claims (4)
1. a kind of composite rolling technique improving composite material interfacial weld, which is characterized in that include the following steps：
The first step：Using band A and band B as raw material, A and B are processed into identical length and width, wherein band A and
Band B is one kind in titanium, aluminium, copper and its alloy；
Second step：Band A and band B are surface-treated using wire brush, remove oxide on surface；
Third walks：Band A and band B are stacked, A/B composite strips are obtained, wherein surface treated face is opposite；
4th step：A/B composite strips are put into vacuum, edge welding is carried out；
5th step：The A/B composite strips that edge is welded are put into liquid nitrogen and are cooled down, it is 10 minutes cooling or more, realize material
Temperature is uniformly cooled liquid nitrogen temperature；
6th step：A/B composite strips after cooling are subjected to deep cooling rolling, reduction ratio control realizes material interface in 10-15%
Generate a large amount of nanocrystal；
7th step：The A/B composite strips that deep cooling rolls are put into room temperature environment, wait for that it is warming up to room temperature；
8th step：Room temperature rolling is further carried out to A/B composite strips after heating, until total rolling reduction ratio reaches 80-95%,
Wherein one-pass roller reduction ratio is 20-30%.
2. improving the composite rolling technique of composite material interfacial weld according to claim 1, which is characterized in that described
In the first step, the thickness of band A and band B is in 0.5-6mm before rolling.
3. improving the composite rolling technique of composite material interfacial weld according to claim 1, which is characterized in that described
In the first step, the material identical of the band A and band B or differ.
4. improving the composite rolling technique of composite material interfacial weld according to claim 1, which is characterized in that described
In the first step, the band A is identical with thickness before band B rollings or differs.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109174995A (en) * | 2018-08-13 | 2019-01-11 | 武汉科技大学 | A kind of copper-nanometer silicon carbide-aluminium sandwich structure composite material and preparation method |
| CN109201739A (en) * | 2018-11-05 | 2019-01-15 | 中南大学 | A kind of high-performance superfine crystalline substance copper/aluminium/copper composite strip continuously hot rolling-deep cooling Rolling compund preparation method |
| CN109509571A (en) * | 2018-11-19 | 2019-03-22 | 北京有色金属与稀土应用研究所 | A kind of kamash alloy and copper strips composite material and preparation method |
| CN111545585A (en) * | 2020-05-15 | 2020-08-18 | 南通南京大学材料工程技术研究院 | Preparation method of ultrahigh-strength pure aluminum |
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| EP2143811B9 (en) * | 2007-03-26 | 2017-02-22 | National Institute for Materials Science | Magnesium alloys and process for producing the same |
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| CN106670233A (en) * | 2016-12-20 | 2017-05-17 | 中南大学 | Cryogenic rolling method for preparing nanometer lithium aluminum bi-metal composite foil |
| CN107262726A (en) * | 2017-06-14 | 2017-10-20 | 中南大学 | A kind of deep cooling preparation technology for the nickel aluminum metal powder for producing self bonding nanometer laminated structure |
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| EP2143811B9 (en) * | 2007-03-26 | 2017-02-22 | National Institute for Materials Science | Magnesium alloys and process for producing the same |
| CN102296257A (en) * | 2011-09-21 | 2011-12-28 | 江苏大学 | Preparation method of nano crystalline state polycrystal magnesium material |
| CN105478475A (en) * | 2016-01-21 | 2016-04-13 | 太原科技大学 | Method for rolling high-strength metal composite plate |
| CN106623425A (en) * | 2016-12-20 | 2017-05-10 | 中南大学 | Method for reducing edge cracks during rolling of aluminum-titanium composite panels |
| CN106670233A (en) * | 2016-12-20 | 2017-05-17 | 中南大学 | Cryogenic rolling method for preparing nanometer lithium aluminum bi-metal composite foil |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109174995A (en) * | 2018-08-13 | 2019-01-11 | 武汉科技大学 | A kind of copper-nanometer silicon carbide-aluminium sandwich structure composite material and preparation method |
| CN109201739A (en) * | 2018-11-05 | 2019-01-15 | 中南大学 | A kind of high-performance superfine crystalline substance copper/aluminium/copper composite strip continuously hot rolling-deep cooling Rolling compund preparation method |
| CN109201739B (en) * | 2018-11-05 | 2020-04-10 | 中南大学 | Preparation method of high-performance ultra-fine grain copper/aluminum/copper composite strip |
| CN109509571A (en) * | 2018-11-19 | 2019-03-22 | 北京有色金属与稀土应用研究所 | A kind of kamash alloy and copper strips composite material and preparation method |
| CN111545585A (en) * | 2020-05-15 | 2020-08-18 | 南通南京大学材料工程技术研究院 | Preparation method of ultrahigh-strength pure aluminum |
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