CN108531790A - A kind of 6 line aluminium alloy band of high intensity high heat conductance and preparation method thereof - Google Patents
A kind of 6 line aluminium alloy band of high intensity high heat conductance and preparation method thereof Download PDFInfo
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/05—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
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Abstract
The invention discloses a kind of 6 line aluminium alloy bands of high intensity high heat conductance and preparation method thereof, and ingredient is by mass percentage：Si 0.20 0.55%, Fe 0.03 0.08%, Cu 0.01 0.10%, Mn 0.01 0.02%, Mg 0.40 0.80%, Cr 0.01 0.10%, Zn 0.01 0.02% and Ti 0.01 0.03%, surplus is Al and inevitable impurity, its be using aluminium ingot, aluminium intermediate alloy ingot, magnesium ingot, manganese agent as raw material, through fusing, casting, soaking, hot rolling, cold rolling, solid solution, tension straingtening, timeliness and etc. be made.The present invention makes 6 line aluminium alloy bands obtained have the advantages such as surface quality is good, plate shape is smooth, intensity is high, processability is good and heat-conductive characteristic is higher, has broken the monopolization of foreign technology in this regard by controlling alloy composition, Optimizing Process Parameters.
Description
Technical field
The invention belongs to non-ferrous metal technical fields, and in particular to a kind of 6 line aluminium alloy band of high intensity high heat conductance and
Preparation method.
Background technology
With the development of modern science and technology, use of the people to electronic products such as smart mobile phone, mobile iPad, notebooks
Demand is increasing.Meanwhile various instrument and equipments, electronic product are in the trend development to intelligent, microminiaturization, it is desirable to material
The more do the more thin, to obtain light, quick feature, using and carrying convenient for people；Meanwhile smart mobile phone and notebook material
In use, due to that can not dredge internal heat to outside, experience and equipment life of user etc., this gesture are easily influenced
Necessity is sought development the material with comprehensive performances such as high intensity, low-density, high thermoconductivities.Aluminium alloy has excellent heat conduction
The advantages such as property, moderate strength, low-density, and aluminium is the maximum metal of content in the earth's crust, this is provided for the development of aluminum alloy materials
It may.
However, the use of aluminum alloy materials at present is there are still shortcoming, major embodiment be pyroconductivity with it is strong
Degree can not be usually compatible with.In production process or sacrifices intensity and ensure height to ensure high thermal conductivity or sacrifice thermal conductivity
Intensity, which has limited the development of aluminium alloy and uses.Such as：The pyroconductivity of current 1 line aluminium alloy is best, and pyroconductivity is most
210W/ (mK) is can reach greatly, but maximum intensity can only be in 200MPa or less；5 systems even the intensity highest of 7 line aluminium alloys, but
Its pyroconductivity is poor, generally at 130W/ (mK).
High intensity high heat conductance 6 line aluminium alloy band in the country's is by external import, the domestic temporarily production without the product at present
Method and technique.The present invention provides a kind of 6 line aluminium alloy band of high intensity high heat conductance and its production methods, should by development
Technology can get the aluminium alloy strips with high intensity, high thermoconductivity, excellent formability energy, break the monopolization of foreign technology.
Meanwhile stainless steel plate is substituted with aluminium alloy strips, under the conditions of ensureing high intensity, weight can be mitigated, improve thermal conductivity and molding
Performance makes it widely to be applied to panel products in mobile phone, improves customer experience satisfaction.
Invention content
It is an object of the invention in view of the shortcomings of the prior art, providing a kind of with higher-strength, good thermal conductivity and depth
Punching performance and the splendid 6 line aluminium alloy band of high intensity high heat conductance and preparation method thereof of strip shape quality.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of 6 line aluminium alloy band of high intensity high heat conductance, ingredient are by mass percentage：Si 0.20-0.55%、Fe
0.03-0.08%、Cu 0.01-0.10%、Mn 0.01-0.02%、Mg 0.40-0.80%、Cr 0.01-0.10%、Zn 0.01-
0.02% and Ti 0.01-0.03%, surplus are Al and inevitable impurity.
The preparation method of 6 line aluminium alloy band of the high intensity high heat conductance, be with aluminium ingot, aluminium intermediate alloy ingot, magnesium ingot,
Manganese agent is raw material, and the step of through fusing, casting, soaking, hot rolling, cold rolling, solid solution, tension straingtening, timeliness, the high intensity is made
6 line aluminium alloy band of high intensity high heat conductance；Its each step concrete operations is as follows：
1）Aluminium ingot, aluminium intermediate alloy ingot, magnesium ingot and manganese agent are proportionally added into smelting furnace, melted at 720-740 DEG C
Change, refining, remove the gred, after stirring, the molten aluminum of formation is put into standing furnace and stands 1.5-2.0 h；
2）At 690-710 DEG C, 20 ~ 80ppm grain refiners are added into molten aluminum, and after argon gas refines, with semicontinuous casting
It makes method and refinery molten aluminium is cast as cast aluminium alloy flat ingot；
3）Holding furnace inside holding by cast aluminium alloy flat ingot at 450 DEG C ~ 500 DEG C reacts 8 ~ 18 h, and is naturally cooled in stove
After 120 DEG C ~ 150 DEG C, then cooled to room temperature in air；Then by rectangle ingot jagsaw end to end, behind milling face enter heating furnace
Soaking is carried out, soaking temperature is 400-500 DEG C, and the time is 8-10 h；
4）The intermediate base that ingot blank after coming out of the stove is rolled into 26-32mm thickness through hot thick machine, then controlling single pass maximum depression rate is
35%, to ensure rolling quality, then by finishing mill tandem rolling at the hot-rolled band of 6.0-9.0mm thickness, the finishing temperature of finishing mill is
280-330℃；
5）By step 4）Obtained hot-rolled band carries out cold roughing, during the rolling process every time deflection of reasonable arrangement and total
Working modulus, to ensure that the quality of process and online plate shape are rolled in cold rolling, i.e. every time general working rate controls between 20-90%, most
10% ~ 30%, last time mill speed is controlled in 200 ~ 400m/min, is made for the reduction ratio control of the latter rolling pass
The cold-strip of line glacing flatness≤12I；
6）In order to ensure that aberration does not occur in aluminium alloy strips surface, nitrogen is filled in stove after cold-strip is sent into solid solution furnace,
To ensure that oxygen content is in 800ppm or less in stove；The temperature of solution treatment is 340-540 DEG C, is taken out after handling 2 ~ 4h, and with
The cooling velocity of 50 ~ 80 DEG C/s is rapidly cooled to room temperature, and the compound amounts inside its alloy is made to control in 10 ~ 20/mm2,
And ensure length≤10 μm of single compound；
7）By step 6）It handles obtained band and carries out tension straingtening on stretching-bending straightener, obtain the preferable band of plate shape
Material；
8）In order to ensure the final mechanical property of aluminium alloy strips, by obtained band through 120 ~ 200 DEG C heat preservation ageing treatments 2 ~
For 24 hours, it is allowed to obtain higher intensity.
In order to improve the microscopic structure of aluminium strip and the distributional pattern of second phase particles and structure, the matter of aluminium alloy strips is improved
Amount, step 2）Described in grain refiner be Al-5Ti-0.2B；Purity >=99.999% of argon gas used；The semi-continuous casting
Method is low liquid level formula semi-continuous casting method.
In order to ensure the quality and efficiency of course of hot rolling, step 4）When the intermediate base of hot thick machine rolling, hot roughing lotion it is dense
Degree control is controlled in 3.5-5.0wt%, lotion ash content in 600ppm or less；When smoothing press tandem rolling, the concentration of hot finishing lotion controls
In 6.8-8.8wt%, lotion ash content is controlled in 1100ppm or less.Meanwhile in order to ensure finished product compound is tiny, quantity is few, heat
By controlling single pass maximum depression rate 35%, with broken interior tissue and crystal grain when rolling.
In order to ensure the strip shape quality of aluminium alloy strips, step 7）Extensibility during tension straingtening is controlled in 0.3-
0.5%, make Strip Shape glacing flatness≤6I.
The yield strength of 6 line aluminium alloy band of gained is 270 ~ 300MPa, tensile strength 300-330MPa, and thermal conductivity reaches
To 190 ~ 210W/ (mK), elongation percentage >=8%.
The present invention is compared with the innovative point of the prior art：
1. ingredient difference：Si, Fe content are low in aluminium alloy strips of the present invention, and Mg contents are also very low, to ensure to obtain high thermal conductivity
Rate.
2. founding slag inclusion and initial grain control are stringent：The present invention is by using the argon gas of high-purity and going bad for fining agent
Processing, advanced Liquid level, it is ensured that reduce inside ingot slag inclusion and tiny initial grain.
3. hot rolling technology：The present invention controls the crystal grain of hot-rolled band, makes in hot-rolled band by using heavy reduction rolling
The compound in portion is broken, convenient for the formation of follow-up small compound.
4. the cold rolling reduction ratio after the cold roling reduction determined in the present invention, intermediate annealing has crystal grain, tissue, performance
Great influence, the reduction ratio of especially last a time, it is necessary to execute as required, otherwise will be difficult to reach required performance and plate shape
It is required that.
5. rational heat treating regime：The present invention is on the basis of determining solid solution and aging technique, after controlling solid solution
Cooling velocity, not only ensure end properties, but also ensure high heat-conductive characteristic.
6. straightening process：The present invention is by controlling extremely low elongation percentage, to ensure final performance, convenient for client finally at
Type.
7. only control means according to the invention and relevant parameter, can just obtain high intensity, high thermoconductivity and plate
The excellent aluminium alloy strips of shape.
The present invention is ensureing product with higher-strength by being optimized and revised to alloying elements such as iron, silicon, magnesium, manganese, chromium
While improve its elongation, and obtain higher thermal conductivity；By optimizing the techniques such as founding, hot rolling, cold rolling, solid solution, straightening,
Make that finished surface is high-quality, plate shape is smooth, intensity is high, processability is good, and there is higher heat-conductive characteristic.The present invention gives birth to
The yield strength of the 6 line aluminium alloy band of high intensity high heat conductance of output reaches 270 ~ 300MPa, and tensile strength reaches 300-
The thermal conductivity of 330MPa, elongation percentage >=8%, and material reaches 190 ~ 210W/ (mK).
Specific implementation mode
In order to make content of the present invention easily facilitate understanding, With reference to embodiment to of the present invention
Technical solution is described further, but the present invention is not limited only to this.
Embodiment 1
A kind of ingredient of 6 line aluminium alloy band of high intensity high heat conductance is by mass percentage：Si 0.35%、Fe 0.05%、
Cu 0.03%, Mn 0.01%, Mg 0.45%, Cr 0.03%, Zn 0.01%, Ti 0.012%, surplus be Al and inevitably it is miscellaneous
Matter.
The preparation method of 6 line aluminium alloy band of the high intensity high heat conductance is according to the following steps：
1）Fine aluminium ingot, aluminium intermediate alloy ingot, magnesium ingot and the manganese agent that above-mentioned weight proportion is got ready, are added in smelting furnace, 720
After being melted, refined at DEG C, removed the gred, stirring, the molten aluminum of formation is put into standing furnace and stands 1.5 h；
2）At 710 DEG C, the Al-5Ti-0.2B grain refiners of 20ppm are added into molten aluminum, and are filled with purity >=99.999%
Argon gas refined after, refinery molten aluminium is cast as thick 560mm × wide 1300mm × length with low liquid level formula semi-continuous casting method
The cast aluminium alloy flat ingot of 7000mm；
3）Holding furnace inside holding by cast aluminium alloy flat ingot at 450 DEG C reacts 18 h, and after naturally cooling to 120 DEG C in stove,
Cooled to room temperature in air again；Then rectangle ingot jagsaw is entered into heating furnace end to end, behind milling face and carries out soaking, soaking temperature
Degree is 400 DEG C, and the time is 10 h；
4）Ingot blank after coming out of the stove is rolled into the intermediate base of 26mm thickness through hot thick machine, it is 35% then to control single pass maximum depression rate,
To ensure rolling quality, then by finishing mill tandem rolling at the hot-rolled band of 6.5mm thickness, in order to ensure the quality and effect of course of hot rolling
Rate, the concentration control of hot roughing lotion is in 3.8wt%, and the control of lotion ash content is in 600ppm hereinafter, the concentration control of hot finishing lotion
In 7.0wt%, the control of lotion ash content is in 1100ppm hereinafter, the finishing temperature of finishing mill is 320 DEG C；
5）By step 4）The hot-rolled band of obtained 6.5mm thickness carries out cold roughing to 1.2mm thick strips, during the rolling process rationally
Every time deflection and general working rate, general working rate is arranged to control between 81.54%, the pressure of the last one rolling pass
12%, the mill speed of last a time is 400m/min for lower rate control；
6）After the cold-strip of 1.2mm thickness is sent into solid solution furnace, nitrogen is filled in stove, to ensure that oxygen content exists in stove
800ppm or less；The temperature of solution treatment is 540 DEG C, is taken out after handling 2h, and be rapidly cooled to the cooling velocity of 50 DEG C/s
Room temperature；
7）The band of 1.2mm after cooling thickness is subjected to tension straingtening on stretching-bending straightener, extensibility control 0.4%,
Make the I of Strip Shape glacing flatness≤6；
8）By the band of stretched aligning through 120 DEG C of ageing treatment 10h.
6 line aluminium alloy band of high intensity high heat conductance made from the present embodiment, internal compound amounts are 12/mm2,
Compound length is 6 μm, and yield strength 280MPa, tensile strength 310MPa, elongation percentage 10%, heat-conductive characteristic is good, heat
Conductance is 195W/ (mK), and Strip Shape glacing flatness is 5I.
Embodiment 2
A kind of ingredient of 6 line aluminium alloy band of high intensity high heat conductance is by mass percentage：Si 0.50%、Fe 0.03%、
Cu 0.05%, Mn 0.02%, Mg 0.40%, Cr 0.01%, Zn 0.015%, Ti 0.03%, surplus be Al and inevitably it is miscellaneous
Matter.
The preparation method of 6 line aluminium alloy band of the high intensity high heat conductance is according to the following steps：
1）Fine aluminium ingot, aluminium intermediate alloy ingot, magnesium ingot and the manganese agent that above-mentioned weight proportion is got ready, are added in smelting furnace, 730
After being melted, refined at DEG C, removed the gred, stirring, the molten aluminum of formation is put into standing furnace and stands 2.0 h；
2）At 690 DEG C, the Al-5Ti-0.2B grain refiners of 80ppm are added into molten aluminum, and are filled with purity >=99.999%
Argon gas refined after, refinery molten aluminium is cast as thick 520mm × wide 1300mm × length with low liquid level formula semi-continuous casting method
The cast aluminium alloy flat ingot of 6000mm；
3）Holding furnace inside holding by cast aluminium alloy flat ingot at 500 DEG C reacts 12 h, and after naturally cooling to 120 DEG C in stove,
Cooled to room temperature in air again；Then rectangle ingot jagsaw is entered into heating furnace end to end, behind milling face and carries out soaking, soaking temperature
Degree is 400 DEG C, and the time is 8 h；
4）Ingot blank after coming out of the stove is rolled into the intermediate base of 32mm thickness through hot thick machine, it is 35% then to control single pass maximum depression rate,
To ensure rolling quality, then by finishing mill tandem rolling at the hot-rolled band of 8.0mm thickness, in order to ensure the quality and effect of course of hot rolling
Rate, the concentration control of hot roughing lotion is in 4.8wt%, and the control of lotion ash content is in 600ppm hereinafter, the concentration control of hot finishing lotion
In 7.2wt%, the control of lotion ash content is in 1100ppm hereinafter, the finishing temperature of finishing mill is 280 DEG C；
5）By step 4）The hot-rolled band of obtained 8.0mm thickness carries out cold roughing to 2.0mm thick strips, during the rolling process rationally
Every time deflection and general working rate, general working rate is arranged to control between 75%, the reduction ratio of the last one rolling pass
30%, the mill speed of last a time is 250m/min for control；
6）After the cold-strip of 2.0mm thickness is sent into solid solution furnace, nitrogen is filled in stove, to ensure that oxygen content exists in stove
800ppm or less；The temperature of solution treatment is 500 DEG C, is taken out after handling 4h, and be rapidly cooled to the cooling velocity of 80 DEG C/s
Room temperature；
7）The band of 2.0mm after cooling thickness is subjected to tension straingtening on stretching-bending straightener, extensibility control 0.5%,
Make the I of Strip Shape glacing flatness≤6；
8）By the band of stretched aligning through 200 DEG C of ageing treatment 10h.
6 line aluminium alloy band of high intensity high heat conductance made from the present embodiment, internal compound amounts are 10/mm2,
Compound length is 5 μm, and yield strength 300MPa, tensile strength 330MPa, elongation percentage 9%, heat-conductive characteristic is good, heat
Conductance is 205W/ (mK), and Strip Shape glacing flatness is 6I.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification should all belong to the covering scope of the present invention.
Claims (10)
1. a kind of 6 line aluminium alloy band of high intensity high heat conductance, it is characterised in that：Its ingredient is by mass percentage：Si
0.20-0.55%、Fe 0.03-0.08%、Cu 0.01-0.10%、Mn 0.01-0.02%、Mg 0.40-0.80%、Cr 0.01-
0.10%, Zn 0.01-0.02% and Ti 0.01-0.03%, surplus are Al and inevitable impurity.
2. a kind of method preparing 6 line aluminium alloy band of high intensity high heat conductance as described in claim 1, it is characterised in that：
Using aluminium ingot, aluminium intermediate alloy ingot, magnesium ingot, manganese agent as raw material, through fusing, casting, soaking, hot rolling, cold rolling, solid solution, tension straingtening,
The 6 line aluminium alloy band of high intensity high intensity high heat conductance is made in timeliness.
3. the preparation method of 6 line aluminium alloy band of high intensity high heat conductance according to claim 2, it is characterised in that：Respectively
Step concrete operations are as follows：
1）Aluminium ingot, aluminium intermediate alloy ingot, magnesium ingot and manganese agent are proportionally added into smelting furnace, melted at 720-740 DEG C
Change, refining, remove the gred, after stirring, the molten aluminum of formation is put into standing furnace and stands 1.5-2.0 h；
2）At 690-710 DEG C, grain refiner is added into molten aluminum, and after argon gas refines, it will be smart with semi-continuous casting method
Aluminium metallurgy liquid is cast as cast aluminium alloy flat ingot；
3）To be sawed after the warm processing of cast aluminium alloy flat ingot end to end, milling face, into heating furnace carry out soaking, soaking temperature 400-
500 DEG C, the time is 8-10 h；
4）The intermediate base that ingot blank after coming out of the stove is rolled into 26-32mm thickness through hot thick machine, then controlling single pass maximum depression rate is
35%, to ensure rolling quality, then by finishing mill tandem rolling at the hot-rolled band of 6.0-9.0mm thickness, the finishing temperature of finishing mill is
280-330℃；
5）By step 4）Obtained hot-rolled band carries out cold roughing, every time general working rate controls between 20-90%, finally
10% ~ 30%, cold rolling is made in 200 ~ 400m/min in the control of last time mill speed for the reduction ratio control of one rolling pass
Band；
6）Cold-strip is sent into solid solution furnace and carries out solution treatment, the temperature of solution treatment is 340-540 DEG C, is taken after handling 2 ~ 4h
Go out, and room temperature is rapidly cooled to the cooling velocity of 50 ~ 80 DEG C/s；
7）By step 6）It handles obtained band and carries out tension straingtening on stretching-bending straightener, obtain the preferable band of plate shape
Material；
8）Through 120 ~ 200 DEG C of heat preservation ageing treatments 2 ~ for 24 hours it is that aluminium closes to get the high intensity high heat conductance 6 by the band made
Gold ribbon material.
4. the preparation method of 6 line aluminium alloy band of high intensity high heat conductance according to claim 3, it is characterised in that：Step
Rapid 2）Described in grain refiner be Al-5Ti-0.2B, additive amount be molten aluminum weight 20 ~ 80ppm；The purity of argon gas used
≥99.999%；The semi-continuous casting method is low liquid level formula semi-continuous casting method.
5. the preparation method of 6 line aluminium alloy band of high intensity high heat conductance according to claim 3, it is characterised in that：Step
Rapid 3）The isothermal holding is holding furnace inside holding 8 ~ 18h of reaction at 450 DEG C ~ 500 DEG C by cast aluminium alloy flat ingot, and in stove
After naturally cooling to 120 DEG C ~ 150 DEG C, then cooled to room temperature in air.
6. the preparation method of 6 line aluminium alloy band of high intensity high heat conductance according to claim 3, it is characterised in that：Step
Rapid 4）Among hot thick machine rolling when base, in 3.5-5.0wt%, lotion ash content is controlled in 600ppm for the concentration control of hot roughing lotion
Below；When smoothing press tandem rolling, in 6.8-8.8wt%, lotion ash content is controlled in 1100ppm or less for the concentration control of hot finishing lotion.
7. the preparation method of 6 line aluminium alloy band of high intensity high heat conductance according to claim 3, it is characterised in that：Step
Rapid 5）Online glacing flatness≤12I of gained cold-strip.
8. the preparation method of 6 line aluminium alloy band of high intensity high heat conductance according to claim 3, it is characterised in that：Step
Rapid 6）Nitrogen is filled with when solution treatment in stove, to ensure that oxygen content is in 800ppm or less in stove.
9. the preparation method of 6 line aluminium alloy band of high intensity high heat conductance according to claim 3, it is characterised in that：Step
Rapid 7）Extensibility during tension straingtening is controlled in 0.3-0.5%, makes Strip Shape glacing flatness≤6I.
10. the preparation method of 6 line aluminium alloy band of high intensity high heat conductance according to claim 3, it is characterised in that：Institute
The yield strengths of 6 line aluminium alloy bands is 270 ~ 300MPa, tensile strength 300-330MPa, thermal conductivity reaches 190 ~
210W/(m·K)。
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| CN109439979B (en) * | 2018-12-14 | 2021-02-23 | 湖南海铝汽车工业有限公司 | 6063T6 improved aluminum alloy and processing method thereof |
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| CN112375947A (en) * | 2020-10-29 | 2021-02-19 | 天津忠旺铝业有限公司 | Preparation method of 6-series aluminum alloy plate for semiconductor equipment precision structural member |
| CN112410628A (en) * | 2020-12-03 | 2021-02-26 | 河南永通铝业有限公司 | High-strength aluminum alloy plate for curtain wall and preparation method thereof |
| CN112981153A (en) * | 2021-02-09 | 2021-06-18 | 太原理工大学 | High-strength high-conductivity aluminum/aluminum alloy composite board and preparation method thereof |
| CN116356174A (en) * | 2023-04-04 | 2023-06-30 | 上海嘉朗实业南通智能科技有限公司 | Aluminum-based composite material based on graphene and preparation method thereof |
| CN116356174B (en) * | 2023-04-04 | 2023-10-20 | 上海嘉朗实业南通智能科技有限公司 | Aluminum-based composite material based on graphene and preparation method thereof |
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