CN110027275A - High-strength corrosion-resisting aluminium alloy compound plate and strip and preparation method thereof - Google Patents
High-strength corrosion-resisting aluminium alloy compound plate and strip and preparation method thereof Download PDFInfo
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- CN110027275A CN110027275A CN201910434886.3A CN201910434886A CN110027275A CN 110027275 A CN110027275 A CN 110027275A CN 201910434886 A CN201910434886 A CN 201910434886A CN 110027275 A CN110027275 A CN 110027275A
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- aluminium alloy
- strip
- core layer
- clad
- compound plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/016—Layered products comprising a layer of metal all layers being exclusively metallic all layers being formed of aluminium or aluminium alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/0076—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised in that the layers are not bonded on the totality of their surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0036—Heat treatment
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0036—Heat treatment
- B32B2038/0048—Annealing, relaxing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2311/00—Metals, their alloys or their compounds
- B32B2311/24—Aluminium
Abstract
The invention discloses a kind of high-strength corrosion-resisting aluminium alloy compound plate and strip and preparation method thereof, including core layer and clad, clad is coated on the side of core layer；Core layer includes the component of following weight percentage: iron 0.1~0.5%, silicon 0.05~0.3%, copper 0.2~0.8%, manganese 1.0~1.7%, magnesium 0.1~0.5%, zinc≤0.07%, chromium≤0.07%, titanium 0.05~0.35%, strontium 0.01~0.02%, remaining is aluminium；Clad is aluminium alloy；The preparation method step: preparation core layer aluminium alloy plate, milling surface treatment, core layer and clad soldering, compound hot rolling, roughing, finish rolling, essential oil wash, finished products.The present invention is designed by the composition proportion of science and the selection of reasonable process conditions, so that resulting aluminium alloy compound plate and strip all has higher mechanical strength height and excellent excellent anti-corrosion performance afterwards before brazing, it is the ideal material for preparing header.
Description
Technical field
The present invention relates to Al alloy composite fields, more particularly to a kind of effective high-strength corrosion-resisting aluminium alloy of afflux
Complex plate strip and preparation method thereof.
Background technique
Header is that the circulation after collecting for gas or liquid important in air-conditioning, heat exchanger and extinguisher device is logical
Road.Due to after confluence gas or fluid pressure increase, the gas or liquid of different field can also have certain corrosive nature,
It is therefore desirable to which the strip for preparing header must have certain intensity and corrosion resistance.
The corrosion resistance of the existing effective aluminum alloy strip of afflux is poor, and the header after welding is recycled acid seawater and tried
It tests (SWAAT), penetrates within 5 days, corrosion resistance is bad, cannot satisfy the use demand.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of high-strength corrosion-resisting aluminium alloy compound plate and strip and its preparations
Method is able to solve the problem of poor corrosion resistance existing for the effective aluminum alloy strip of existing afflux.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of high-strength corrosion-resisting aluminium is provided
Alloy composite plate band, comprising: core layer and clad, the clad are coated on the side of the core layer；The core layer
Component including following weight percentage: iron 0.1~0.5%, silicon 0.05~0.3%, copper 0.2~0.8%, manganese 1.0~1.7%,
Magnesium 0.1~0.5%, zinc≤0.07%, chromium≤0.07%, titanium 0.05~0.35%, strontium 0.01~0.02%, remaining is aluminium；The cladding
Layer is aluminium alloy.
In a preferred embodiment of the present invention, the clad ratio of the clad is 3.5~6.5%.
In order to solve the above technical problems, another technical solution used in the present invention is: providing a kind of high-strength corrosion-resisting
The preparation method of aluminium alloy compound plate and strip includes the following steps: to prepare core layer aluminium alloy plate, milling surface treatment, core layer and packet
Coating soldering, compound hot rolling, roughing, finish rolling, essential oil wash, finished products.
In a preferred embodiment of the present invention, the process conditions of the compound hot rolling are as follows: 490~510 DEG C of hot-rolled temperature,
4~8h of hot rolling time.
In a preferred embodiment of the present invention, the process conditions of the finished products are as follows: 150~160 DEG C of annealing temperature,
5~7h of annealing time.
The beneficial effects of the present invention are: a kind of preparation method of high-strength corrosion-resisting aluminium alloy compound plate and strip of the present invention, leads to
Cross the selection of the composition proportion design and reasonable process conditions of science, the especially design of copper content and silicone content, so that institute
The aluminium alloy compound plate and strip obtained all has higher mechanical strength height and excellent excellent anti-corrosion performance afterwards before brazing, is system
The ideal material of standby header.
Detailed description of the invention
Fig. 1 is the structure schematic diagram of 100 times of amplification before high-strength corrosion-resisting aluminium alloy compound plate and strip soldering of the present invention；
Fig. 2 is the structure schematic diagram of 100 times of amplification after high-strength corrosion-resisting aluminium alloy compound plate and strip soldering of the present invention；
Fig. 3 is corrode state diagram of the high-strength corrosion-resisting aluminium alloy compound plate and strip of the present invention before clad ratio is 6.35% soldering；
Fig. 4 is corrode state diagram of the high-strength corrosion-resisting aluminium alloy compound plate and strip of the present invention after clad ratio is 6.35% soldering；
Fig. 5 is the metallographic microscope figure of precipitated phase before high-strength corrosion-resisting aluminium alloy compound plate and strip of the present invention is brazed；
Fig. 6 is the metallographic microscope figure of precipitated phase after high-strength corrosion-resisting aluminium alloy compound plate and strip soldering of the present invention；
Fig. 7 is the electron microscopic of corrosion depth of the high-strength corrosion-resisting aluminium alloy compound plate and strip of the present invention by 5 days SWAAT test
Mirror is intended to, and amplifies 200 times；
Fig. 8 is the electronic display of corrosion depth of the high-strength corrosion-resisting aluminium alloy compound plate and strip of the present invention by 10 days SWAAT test
Micro mirror schematic diagram amplifies 200 times；
Fig. 9 is the electronic display of corrosion depth of the high-strength corrosion-resisting aluminium alloy compound plate and strip of the present invention by 15 days SWAAT test
Micro mirror schematic diagram amplifies 200 times；
Figure 10 is the electronic display of corrosion depth of the high-strength corrosion-resisting aluminium alloy compound plate and strip of the present invention by 40 days SWAAT test
Micro mirror schematic diagram amplifies 200 times.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Fig. 1-10 is please referred to, the embodiment of the present invention includes:
Embodiment 1
Present invention discloses a kind of high-strength corrosion-resisting aluminium alloy compound plate and strips, comprising: core layer and clad, the clad
It is coated on the side of the core layer, clad ratio is 3.5~6.5%.
Wherein, the core layer includes the component of following weight percentage: iron 0.1~0.5%, silicon 0.05~0.3%, copper
0.2~0.8%, manganese 1.0~1.7%, magnesium 0.1~0.5%, zinc≤0.07%, chromium≤0.07%, titanium 0.05~0.35%, strontium 0.01~
0.02%, remaining is aluminium；The clad is aluminium alloy.
The preparation method of above-mentioned high-strength corrosion-resisting aluminium alloy compound plate and strip includes the following steps: that preparing core layer aluminium closes
Golden plate, milling surface treatment, core layer and clad soldering, compound hot rolling, roughing, finish rolling, essential oil wash, finished products；Wherein, described
The process conditions of compound hot rolling are as follows: 490~510 DEG C of hot-rolled temperature, 4~8h of hot rolling time；The process conditions of the finished products
Are as follows: 150~160 DEG C of annealing temperature, 5~7h of annealing time.
The above method preparation aluminium alloy compound plate and strip with a thickness of 2.139mm, it is tested for the property, as a result such as
Under:
(1) mechanical property: as shown in the table, mechanical property all meets requirement before soldering and after soldering；
(2) structure: multiple using aluminium alloy of metallographic microscope under conditions of amplifying 100 times before observation soldering and after soldering
The structure of plywood band；Carry out crystallite dimension after soldering is 256 μm, as shown in figure 1 and 2；
(3) corrode point: the corrosion potential of test aluminium alloy compound plate and strip soldering front and back, structure are as shown in the table:
(4) corrode state
Under conditions of the clad ratio of aluminium alloy compound plate and strip is 6.35%, through corrode experimental observation, silicon does not occur for material after soldering
Corrode, as shown in figures 3 and 4.This because in brazing process, in solder due to containing a large amount of elements for reducing fusing points (often
It is Si element), cause the fusing point of solder more much lower than the fusing point of core material.The present embodiment is contained by reducing the silicon in core layer
Amount, to improve the anti-silicon corrode ability of aluminium alloy compound plate and strip.
(5) the metallographic microscope photo of precipitated phase and matrix, it is as depicted in figures 5 and 6, by metallographic microscope figure it is found that aobvious
Micro-assembly robot is distributed in strip, this is because copper content is higher, is conducive to the corrosion resistance for improving material.
(6) SWAAT is tested
Aluminium alloy compound plate and strip after soldering is carried out to recycle acid seawater test, as a result are as follows:
The corrosion depth that SWAAT tests 5 days aluminium alloy compound plate and strips is 2225.36 μm, as shown in Fig. 7；
The corrosion depth that SWAAT tests 10 days aluminium alloy compound plate and strips is 2207.75 μm, as shown in Fig. 8；
The corrosion depth that SWAAT tests 15 days aluminium alloy compound plate and strips is 2169.01 μm, as shown in Fig. 9；
The corrosion depth that SWAAT tests 40 days aluminium alloy compound plate and strips is 2165.50 μm, as shown in Fig. 10.
Extend SWAAT to test to 40 days, the core material extent of corrosion of aluminium alloy compound plate is slight, illustrates that this alloy has very
Good corrosion resistance.
A kind of high-strength corrosion-resisting aluminium alloy compound plate and strip of the present invention is designed and reasonable by the composition proportion of science
The design of the selection of process conditions, especially copper content and silicone content so that resulting aluminium alloy compound plate and strip before brazing after
Higher mechanical strength height and excellent excellent anti-corrosion performance are all had, is the ideal material for preparing header.
In the description of the present invention, it should be noted that the instruction such as term " on ", "lower", "left", "right", "inner", "outside"
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when usually put
Orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning
Or element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, and comes for those skilled in the art
It says, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any modification, equivalent
Replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of high-strength corrosion-resisting aluminium alloy compound plate and strip characterized by comprising core layer and clad, the cladding
Layer is coated on the side of the core layer；The core layer includes the component of following weight percentage: iron 0.1~0.5%, silicon
0.05~0.3%, copper 0.2~0.8%, manganese 1.0~1.7%, magnesium 0.1~0.5%, zinc≤0.07%, chromium≤0.07%, titanium 0.05~
0.35%, strontium 0.01~0.02%, remaining is aluminium；The clad is aluminium alloy.
2. high-strength corrosion-resisting aluminium alloy compound plate and strip according to claim 1, which is characterized in that the packet of the clad
Covering rate is 3.5~6.5%.
3. a kind of preparation method of high-strength corrosion-resisting aluminium alloy compound plate and strip, which comprises the steps of: prepare core
Material layer aluminium alloy plate, milling surface treatment, core layer and clad soldering, compound hot rolling, roughing, finish rolling, essential oil wash, finished products.
4. the preparation method of high-strength corrosion-resisting aluminium alloy compound plate and strip according to claim 3, which is characterized in that described
The process conditions of compound hot rolling are as follows: 490~510 DEG C of hot-rolled temperature, 4~8h of hot rolling time.
5. the preparation method of high-strength corrosion-resisting aluminium alloy compound plate and strip according to claim 4, which is characterized in that described
The process conditions of finished products are as follows: 150~160 DEG C of annealing temperature, 5~7h of annealing time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910434886.3A CN110027275A (en) | 2019-05-23 | 2019-05-23 | High-strength corrosion-resisting aluminium alloy compound plate and strip and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910434886.3A CN110027275A (en) | 2019-05-23 | 2019-05-23 | High-strength corrosion-resisting aluminium alloy compound plate and strip and preparation method thereof |
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| Publication Number | Publication Date |
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| CN110027275A true CN110027275A (en) | 2019-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910434886.3A Pending CN110027275A (en) | 2019-05-23 | 2019-05-23 | High-strength corrosion-resisting aluminium alloy compound plate and strip and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111086289A (en) * | 2019-12-26 | 2020-05-01 | 银邦金属复合材料股份有限公司 | Water-cooling plate, manufacturing method thereof, battery comprising water-cooling plate and new energy automobile |
| CN111114044A (en) * | 2019-12-13 | 2020-05-08 | 常熟理工学院 | Medium-temperature high-strength aluminum alloy plate and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774126A (en) * | 2009-12-29 | 2010-07-14 | 江苏常铝铝业股份有限公司 | Manufacturing method of aluminium alloy compound plate and strip for power station air cooling island and product thereof |
| CN108754193A (en) * | 2018-05-23 | 2018-11-06 | 大力神铝业股份有限公司 | A kind of high-strength corrosion-resisting collecting pipe material and preparation method thereof |
| CN109735745A (en) * | 2019-01-23 | 2019-05-10 | 大力神铝业股份有限公司 | A kind of preparation method for losing automobile evaporator tube sheet material for manufacturing high-strength corrosion-resistant |
-
2019
- 2019-05-23 CN CN201910434886.3A patent/CN110027275A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774126A (en) * | 2009-12-29 | 2010-07-14 | 江苏常铝铝业股份有限公司 | Manufacturing method of aluminium alloy compound plate and strip for power station air cooling island and product thereof |
| CN108754193A (en) * | 2018-05-23 | 2018-11-06 | 大力神铝业股份有限公司 | A kind of high-strength corrosion-resisting collecting pipe material and preparation method thereof |
| CN109735745A (en) * | 2019-01-23 | 2019-05-10 | 大力神铝业股份有限公司 | A kind of preparation method for losing automobile evaporator tube sheet material for manufacturing high-strength corrosion-resistant |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111114044A (en) * | 2019-12-13 | 2020-05-08 | 常熟理工学院 | Medium-temperature high-strength aluminum alloy plate and preparation method thereof |
| CN111086289A (en) * | 2019-12-26 | 2020-05-01 | 银邦金属复合材料股份有限公司 | Water-cooling plate, manufacturing method thereof, battery comprising water-cooling plate and new energy automobile |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 215500 West of Baiji Town, Changshu City, Suzhou City, Jiangsu Province Applicant after: Jiangsu Changaluminium Group Co., Ltd. Address before: 215500 West of Baiji Town, Changshu City, Suzhou City, Jiangsu Province Applicant before: Jiangsu Alcha Aluminium Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190719 |