CN102433476A - Aluminum alloy strip for LED (Light-Emitting Diode) back plate and manufacturing method thereof - Google Patents
Aluminum alloy strip for LED (Light-Emitting Diode) back plate and manufacturing method thereof Download PDFInfo
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- CN102433476A CN102433476A CN2011103641901A CN201110364190A CN102433476A CN 102433476 A CN102433476 A CN 102433476A CN 2011103641901 A CN2011103641901 A CN 2011103641901A CN 201110364190 A CN201110364190 A CN 201110364190A CN 102433476 A CN102433476 A CN 102433476A
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Abstract
The invention discloses an aluminum alloy strip for an LED (Light-Emitting Diode) back plate and a manufacturing method thereof. The strip comprises the following components in percentage by weight: 0.10-0.30 percent of iron, 0.05-0.12 percent of silicon, 0.01-0.04 percent of copper, 0.01-0.04 percent of manganese, 0.12-0.18 percent of chromium, 1.85-2.15 percent of magnesium, 0.010-0.030 percent of titanium and the balance of aluminum. The components are subjected to cast-rolling, cold rolling, washing, annealing, shearing and the like, so that the problems of poor surface quality, plate shape quality, poor mechanical performance and the like of the aluminum alloy strip for the conventional LED back plate are solved.
Description
Technical field
The present invention relates to the method for manufacture of a kind of LED backboard with aluminum alloy sheets and strips and this band.
Background technology
Along with flat panel TV of new generation universal day by day that with liquid crystal and plasma is representative, the volume of production and marketing of flat panel TV increases rapidly, and the market demand that is used to produce the aluminum alloy plate materials (hereinafter to be referred as the LED backboard) of plasma panel backboard scatterer also increases rapidly.But it is very high that this product requires surface quality, strip shape quality, tolerance of dimension and mechanical property etc., and difficulty of processing is big, present most of dependence on import.
Summary of the invention
The purpose of this invention is to provide the excellent LED backboard of a kind of surface quality, strip shape quality and mechanical property and use aluminum alloy sheets and strips.The invention still further relates to the LED backboard and use the aluminum alloy sheets and strips method of manufacture.
In order to achieve the above object; Technical scheme of the present invention is: a kind of LED backboard is used aluminum alloy sheets and strips; It comprises following component and weight proportion: iron 0.10-0.30%, silicon 0.05-0.12%, copper 0.01-0.04%, manganese 0.01-0.04%, chromium 0.12-0.18%, magnesium 1.85-2.15%, titanium 0.010-0.030%, all the other are aluminium.
LED backboard of the present invention may further comprise the steps with the method for manufacture of aluminum alloy sheets and strips:
1) casting of slab: will join in the smelting furnace by each raw material fine aluminium ingot, ferro-aluminum intermediate alloy ingot, aluminium silicon intermediate alloy ingot, aluminum bronze intermediate alloy ingot, aluminium manganese intermediate alloy ingot, aluminium chromium hardener ingot, magnesium ingot or chalybeate, silicea, copper agent, manganese agent, the chromium agent addition agent of following component and weight proportion: iron 0.10-0.30%, silicon 0.05-0.12%, copper 0.01-0.04%, manganese 0.01-0.04%, chromium 0.12-0.18%, magnesium 1.85-2.15%, titanium 0.010-0.030%, all the other are aluminium;
Fusing also is warmed up to 730-770 ℃, goes into to leave standstill stove through refining, slagging-off, stirring, analysis and adjustment composition are laggard, said leave standstill in the stove leave standstill, refining, degasification, slagging-off; Aluminium liquid is derived and is left standstill stove; In chute, launch aluminium titanium boron wire fining agent adding set, in aluminium liquid, add the titanium elements of aforementioned proportion after, degasification and filtration outside stove; Get into the casting of casting unit again; In strip casting process, in the casting district, apply the electromagnetism combined field that static magnetic field and alternating current are formed, adopting the casting of electromagnetic oscillation technology to become thickness in the casting and rolling solidified entity process is the slab of 7.0-8.0mm.
In order to improve the stability of melt flow, overcome the shortcoming that existing duraluminum is easy to generate cold shut, realize refinement to the aluminum alloy solidification tissue; Reach thin crystalline substance, the uniform purpose of composition, and prevent micro-flaw, in the strip casting process of step 1); The casting section length is 42-48mm, and preceding oven temperature, degree is 680-690 ℃, and roll casting speed is 720-820mm/min; Static magnetic field strength is a 0.25-0.35 tesla, and strength of current is 300-600A.
2) with the thick band of cast-rolled block cold rolling one-tenth 1.0-1.2mm.In order to guarantee the surface quality of aluminium strip, in step 2) cold-rolled process in, the working roll roughness during with roughing is set at Ra:0.42-0.48 μ m, the working roll roughness during finish rolling is set at Ra:0.25-0.35 μ m.
3) band that 1.0-1.2mm is thick cleans on cleaning machine, removes the greasy dirt on aluminium strip surface, and wetting tension 32-34 dyne meets the requirements its surface quality;
4) band that said 1.0-1.2mm is thick is placed on and carries out finished products in the lehre, and annealing temperature is 260-300 ℃, and band keeps taking out after 6-10 hour to temperature, is cooled to normal temperature;
The thick band of 1.0-1.2mm that 5) on stretch bending-straightening machine, will be cooled to normal temperature carries out stretch-bending straightening.In order to guarantee the template quality of aluminium strip, in the stretch-bending straightening process of step 5), elongation control is at 0.26-0.34%, and the mist lubrication of employing thin oil, comes effectively generation of defects such as the sticking aluminium of prevention straightening roll, strip surface orange peel impression.
6) band that said 1.0-1.2mm is thick is sheared on vertical, cross cut shears, makes LED backboard of the present invention and uses aluminum alloy sheets and strips.
The present invention is through optimizing and revising elements such as iron, silicon, copper, manganese, magnesium, chromium, titanium in the alloy; In conjunction with above-mentioned method of manufacture, through founding Working Procedure Controlling alloying constituent, tissue, then through cold rolling, cleaning, finished products and straightening technology; Its final performance index can reach: tensile strength is 175-215MPa; Ys is 95-115MPa, and unit elongation is more than 22%, and appearance luster is evenly attractive in appearance, template is smooth; Have HS and good punch forming property, satisfy user's demand better.
Embodiment
Embodiment 1
1) casting of slab: will join in the smelting furnace by each raw material fine aluminium ingot, ferro-aluminum intermediate alloy ingot, aluminium silicon intermediate alloy ingot, aluminum bronze intermediate alloy ingot, aluminium manganese intermediate alloy ingot, aluminium chromium hardener ingot, magnesium ingot or chalybeate, silicea, copper agent, manganese agent, the chromium agent addition agent of following component and weight proportion: iron 0.25%, silicon 0.05%, copper 0.04%, manganese 0.03%, chromium 0.12%, magnesium 2.0%, titanium 0.030%, all the other are aluminium.
With above-mentioned raw materials fusing and be warmed up to 770 ℃, go into to leave standstill stove through refining, slagging-off, stirring, analysis and adjustment composition are laggard, said leave standstill in the stove leave standstill, refining, degasification, slagging-off; Aluminium liquid is derived and is left standstill stove; In chute, launch aluminium titanium boron wire fining agent adding set, in aluminium liquid, add the titanium elements of aforementioned proportion after, degasification and filtration outside stove; Get into the casting of casting unit again; In strip casting process, in the casting district, apply the electromagnetism combined field that static magnetic field and alternating current are formed, adopting the casting of electromagnetic oscillation technology to become thickness in the casting and rolling solidified entity process is the slab of 8.0mm.
Above-mentioned casting section length is 45mm, and preceding oven temperature, degree is 680 ℃, and roll casting speed is 720mm/min, and static magnetic field strength is 0.25 tesla, and strength of current is 600A.
2) with the thick band of cast-rolled block cold rolling one-tenth 1.0mm.In the cold-rolled process, the working roll roughness during with roughing is set at Ra:0.42 μ m, and the working roll roughness during finish rolling is set at Ra:0.35 μ m.
3) band that 1.0mm is thick cleans on cleaning machine, removes the greasy dirt on aluminium strip surface, and wetting tension 32 dyne meet the requirements its surface quality;
4) band that said 1.0mm is thick is placed on and carries out finished products in the lehre, and annealing temperature is 260 ℃, and band keeps taking out after 8 hours to temperature, is cooled to normal temperature;
The thick band of 1.0mm that 5) on stretch bending-straightening machine, will be cooled to normal temperature carries out stretch-bending straightening.In the stretch-bending straightening process, elongation control is 0.34%, and the mist lubrication of employing thin oil, comes effectively generation of defects such as the sticking aluminium of prevention straightening roll, strip surface orange peel impression.
6) band that said 1.0mm is thick is sheared on vertical, cross cut shears.
The LED backboard of gained uses aluminum alloy sheets and strips tensile strength to be 175MPa, and ys is 100MPa, and unit elongation is 23%.
Embodiment 2
1) casting of slab: will join in the smelting furnace by each raw material fine aluminium ingot, ferro-aluminum intermediate alloy ingot, aluminium silicon intermediate alloy ingot, aluminum bronze intermediate alloy ingot, aluminium manganese intermediate alloy ingot, aluminium chromium hardener ingot, magnesium ingot or chalybeate, silicea, copper agent, manganese agent, the chromium agent addition agent of following component and weight proportion: iron 0.10%, silicon 0.12%, copper 0.01%, manganese 0.04%, chromium 0.18%, magnesium 1.85%, titanium 0.010%, all the other are aluminium;
With above-mentioned raw materials fusing and be warmed up to 730 ℃, go into to leave standstill stove through refining, slagging-off, stirring, analysis and adjustment composition are laggard, said leave standstill in the stove leave standstill, refining, degasification, slagging-off; Aluminium liquid is derived and is left standstill stove; In chute, launch aluminium titanium boron wire fining agent adding set, in aluminium liquid, add the titanium elements of aforementioned proportion after, degasification and filtration outside stove; Get into the casting of casting unit again; In strip casting process, in the casting district, apply the electromagnetism combined field that static magnetic field and alternating current are formed, adopting the casting of electromagnetic oscillation technology to become thickness in the casting and rolling solidified entity process is the slab of 7.5mm.
Above-mentioned casting section length is 42mm, and preceding oven temperature, degree is 690 ℃, and roll casting speed is 820mm/min, and static magnetic field strength is 0.35 tesla, and strength of current is 450A.
2) with the thick band of cast-rolled block cold rolling one-tenth 1.1mm.In the cold-rolled process, the working roll roughness during with roughing is set at Ra:0.45 μ m, and the working roll roughness during finish rolling is set at Ra:0.25 μ m.
3) band that 1.1mm is thick cleans on cleaning machine, removes the greasy dirt on aluminium strip surface, and wetting tension 33 dyne meet the requirements its surface quality;
4) band that said 1.1mm is thick is placed on and carries out finished products in the lehre, and annealing temperature is 280 ℃, and band keeps taking out after 6 hours to temperature, is cooled to normal temperature.
The thick band of 1.1mm that 5) on stretch bending-straightening machine, will be cooled to normal temperature carries out stretch-bending straightening.In the stretch-bending straightening process, elongation control is 0.3%, and the mist lubrication of employing thin oil, comes effectively generation of defects such as the sticking aluminium of prevention straightening roll, strip surface orange peel impression.
6) band that said 1.1mm is thick is sheared on vertical, cross cut shears.
The LED backboard of gained uses aluminum alloy sheets and strips tensile strength to be 200MPa, and ys is 95MPa, and unit elongation is 22%.
Embodiment 3
1) casting of slab: will join in the smelting furnace by each raw material fine aluminium ingot, ferro-aluminum intermediate alloy ingot, aluminium silicon intermediate alloy ingot, aluminum bronze intermediate alloy ingot, aluminium manganese intermediate alloy ingot, aluminium chromium hardener ingot, magnesium ingot or chalybeate, silicea, copper agent, manganese agent, the chromium agent addition agent of following component and weight proportion: iron 0.30%, silicon 0.08%, copper 0.03%, manganese 0.01%, chromium 0.15%, magnesium 2.15%, titanium 0.020%, all the other are aluminium.
With above-mentioned raw materials fusing and be warmed up to 750 ℃, go into to leave standstill stove through refining, slagging-off, stirring, analysis and adjustment composition are laggard, said leave standstill in the stove leave standstill, refining, degasification, slagging-off; Aluminium liquid is derived and is left standstill stove; In chute, launch aluminium titanium boron wire fining agent adding set, in aluminium liquid, add the titanium elements of aforementioned proportion after, degasification and filtration outside stove; Get into the casting of casting unit again; In strip casting process, in the casting district, apply the electromagnetism combined field that static magnetic field and alternating current are formed, adopting the casting of electromagnetic oscillation technology to become thickness in the casting and rolling solidified entity process is the slab of 7.0mm.
Above-mentioned casting section length is 42-48mm, and preceding oven temperature, degree is 685 ℃, and roll casting speed is 780mm/min, and static magnetic field strength is 0.3 tesla, and strength of current is 300A.
2) with the thick band of cast-rolled block cold rolling one-tenth 1.2mm.In the cold-rolled process, the working roll roughness during with roughing is set at Ra:0.48 μ m, and the working roll roughness during finish rolling is set at Ra:0.3 μ m.
3) band that 1.2mm is thick cleans on cleaning machine, removes the greasy dirt on aluminium strip surface, and wetting tension 34 dyne meet the requirements its surface quality;
4) band that said 1.2mm is thick is placed on and carries out finished products in the lehre, and annealing temperature is 300 ℃, and band keeps taking out after 10 hours to temperature, is cooled to normal temperature;
The thick band of 1.2mm that 5) on stretch bending-straightening machine, will be cooled to normal temperature carries out stretch-bending straightening.In the stretch-bending straightening process, elongation control is 0.26%, and the mist lubrication of employing thin oil, comes effectively generation of defects such as the sticking aluminium of prevention straightening roll, strip surface orange peel impression.
6) band that said 1.2mm is thick is sheared on vertical, cross cut shears.
The LED backboard of gained uses aluminum alloy sheets and strips tensile strength to be 215MPa, and ys is 115MPa, and unit elongation is 25%.
Embodiment 4
1) casting of slab: will join in the smelting furnace by each raw material fine aluminium ingot, ferro-aluminum intermediate alloy ingot, aluminium silicon intermediate alloy ingot, aluminum bronze intermediate alloy ingot, aluminium manganese intermediate alloy ingot, aluminium chromium hardener ingot, magnesium ingot or chalybeate, silicea, copper agent, manganese agent, the chromium agent addition agent of following component and weight proportion: iron 0.22%, silicon 0.09%, copper 0.035%, manganese 0.028%, chromium 0.16%, magnesium 1.9%, titanium 0.018%, all the other are aluminium.
With above-mentioned raw materials fusing and be warmed up to 745 ℃, go into to leave standstill stove through refining, slagging-off, stirring, analysis and adjustment composition are laggard, said leave standstill in the stove leave standstill, refining, degasification, slagging-off; Aluminium liquid is derived and is left standstill stove; In chute, launch aluminium titanium boron wire fining agent adding set, in aluminium liquid, add the titanium elements of aforementioned proportion after, degasification and filtration outside stove; Get into the casting of casting unit again; In strip casting process, in the casting district, apply the electromagnetism combined field that static magnetic field and alternating current are formed, adopting the casting of electromagnetic oscillation technology to become thickness in the casting and rolling solidified entity process is the slab of 7.3mm.
Above-mentioned casting section length is 48mm, and preceding oven temperature, degree is 680 ℃, and roll casting speed is 770mm/min, and static magnetic field strength is 0.32 tesla, and strength of current is 500A.
2) with the thick band of cast-rolled block cold rolling one-tenth 1.0mm.In the cold-rolled process, the working roll roughness during with roughing is set at Ra:0.44 μ m, and the working roll roughness during finish rolling is set at Ra:0.28 μ m.
3) band that 1.0mm is thick cleans on cleaning machine, removes the greasy dirt on aluminium strip surface, and wetting tension 32 dyne meet the requirements its surface quality;
4) band that said 1.0mm is thick is placed on and carries out finished products in the lehre, and annealing temperature is 270 ℃, and band keeps taking out after 9 hours to temperature, is cooled to normal temperature;
The thick band of 1.0mm that 5) on stretch bending-straightening machine, will be cooled to normal temperature carries out stretch-bending straightening.In the stretch-bending straightening process, elongation control is 0.32%, and the mist lubrication of employing thin oil, comes effectively generation of defects such as the sticking aluminium of prevention straightening roll, strip surface orange peel impression.
6) band that said 1.0mm is thick is sheared on vertical, cross cut shears.
The LED backboard of gained uses aluminum alloy sheets and strips tensile strength to be 180MPa, and ys is 105MPa, and unit elongation is 25%.
The foregoing description does not limit the present invention in any way, and every employing is equal to the technical scheme that replacement or the mode of equivalent transformation obtain and all drops in protection scope of the present invention.
Claims (5)
1. a LED backboard is used aluminum alloy sheets and strips; It is characterized in that comprising following component and weight proportion: iron 0.10-0.30%, silicon 0.05-0.12%, copper 0.01-0.04%, manganese 0.01-0.04%, chromium 0.12-0.18%, magnesium 1.85-2.15%, titanium 0.010-0.030%, all the other are aluminium.
2. the described LED backboard of claim 1 is characterized in that may further comprise the steps with the method for manufacture of aluminum alloy sheets and strips:
1) casting of slab: will join in the smelting furnace by each raw material fine aluminium ingot, ferro-aluminum intermediate alloy ingot, aluminium silicon intermediate alloy ingot, aluminum bronze intermediate alloy ingot, aluminium manganese intermediate alloy ingot, aluminium chromium hardener ingot, magnesium ingot or chalybeate, silicea, copper agent, manganese agent, the chromium agent addition agent of following component and weight proportion: iron 0.10-0.30%, silicon 0.05-0.12%, copper 0.01-0.04%, manganese 0.01-0.04%, chromium 0.12-0.18%, magnesium 1.85-2.15%, titanium 0.010-0.030%, all the other are aluminium;
Fusing also is warmed up to 730-770 ℃, goes into to leave standstill stove through refining, slagging-off, stirring, analysis and adjustment composition are laggard, said leave standstill in the stove leave standstill, refining, degasification, slagging-off; Aluminium liquid is derived and is left standstill stove; In chute, launch aluminium titanium boron wire fining agent adding set, in aluminium liquid, add the titanium elements of aforementioned proportion after, degasification and filtration outside stove; Get into the casting of casting unit again; In strip casting process, in the casting district, apply the electromagnetism combined field that static magnetic field and alternating current are formed, adopting the casting of electromagnetic oscillation technology to become thickness in the casting and rolling solidified entity process is the slab of 7.0-8.0mm;
2) with the thick band of cast-rolled block cold rolling one-tenth 1.0-1.2mm;
3) band that 1.0-1.2mm is thick cleans on cleaning machine, removes the greasy dirt on aluminium strip surface, and wetting tension 32-34 dyne meets the requirements its surface quality;
4) band that said 1.0-1.2mm is thick is placed on and carries out finished products in the lehre, and annealing temperature is 260-300 ℃, and band keeps taking out after 6-10 hour to temperature, is cooled to normal temperature;
The thick band of 1.0-1.2mm that 5) on stretch bending-straightening machine, will be cooled to normal temperature carries out stretch-bending straightening;
6) band that said 1.0-1.2mm is thick is sheared on vertical, cross cut shears, makes LED backboard of the present invention and uses aluminum alloy sheets and strips.
3. LED backboard according to claim 2 is with the method for manufacture of aluminum alloy sheets and strips; It is characterized in that: in the strip casting process of step 1); The casting section length is 42-48mm, and preceding oven temperature, degree is 680-690 ℃, and roll casting speed is 720-820mm/min; Static magnetic field strength is a 0.25-0.35 tesla, and strength of current is 300-600A.
4. LED backboard according to claim 2 is with the method for manufacture of aluminum alloy sheets and strips; It is characterized in that: in step 2) cold-rolled process in; Working roll roughness during with roughing is set at Ra:0.42-0.48 μ m, and the working roll roughness during finish rolling is set at Ra:0.25-0.35 μ m.
5. LED backboard according to claim 2 is with the method for manufacture of aluminum alloy sheets and strips; It is characterized in that: in the stretch-bending straightening process of step 5); Elongation control is at 0.26-0.34%, and the mist lubrication of employing thin oil, the sticking aluminium of prevention straightening roll, strip surface orange peel impression generation of defects.
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| CN2011103641901A CN102433476A (en) | 2011-11-17 | 2011-11-17 | Aluminum alloy strip for LED (Light-Emitting Diode) back plate and manufacturing method thereof |
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| CN2011103641901A CN102433476A (en) | 2011-11-17 | 2011-11-17 | Aluminum alloy strip for LED (Light-Emitting Diode) back plate and manufacturing method thereof |
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| CN102676861A (en) * | 2012-05-30 | 2012-09-19 | 东北大学 | Method for preparing aluminium foil blanks |
| CN102703776A (en) * | 2012-06-08 | 2012-10-03 | 中铝瑞闽铝板带有限公司 | Aluminum alloy substrate for light-emitting diode (LED) television and production method for aluminum alloy substrate |
| CN104141069A (en) * | 2014-07-07 | 2014-11-12 | 马鞍山市万鑫铸造有限公司 | Aluminum-based composite heat radiating material with low heat resistance for LED (Light Emitting Diode) |
| CN104141071A (en) * | 2014-07-08 | 2014-11-12 | 蚌埠市英路光电有限公司 | Modified forsterite-containing aluminum-based composite heat-dispersing material |
| CN104152763A (en) * | 2014-07-07 | 2014-11-19 | 马鞍山市万鑫铸造有限公司 | Colloidal graphite powder contained aluminum-based composite heat radiating material for LED |
| CN104152756A (en) * | 2014-07-08 | 2014-11-19 | 蚌埠市英路光电有限公司 | Aluminum-based composite heat radiating material containing modified bentonite for LED (Light-emitting Diode) |
| CN104164596A (en) * | 2014-07-22 | 2014-11-26 | 安徽冠宇光电科技有限公司 | LED aluminum-based composite heat-dissipating material containing modified fly ash |
| CN104164592A (en) * | 2014-07-07 | 2014-11-26 | 马鞍山市万鑫铸造有限公司 | A light temperature-resistant aluminum-based composite heat dissipation material used for LEDs |
| CN104164595A (en) * | 2014-07-07 | 2014-11-26 | 马鞍山市万鑫铸造有限公司 | An aluminum-based composite heat dissipation material with good optical properties for LEDs |
| CN104451273A (en) * | 2014-11-27 | 2015-03-25 | 广西南南铝箔有限责任公司 | Method for producing aluminum wafers through cast rolling |
| CN109881031A (en) * | 2019-03-01 | 2019-06-14 | 江苏鼎胜新能源材料股份有限公司 | A kind of production method of 7072 alloy blank |
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| CN115927918A (en) * | 2021-12-17 | 2023-04-07 | 江苏常铝铝业集团股份有限公司 | Aluminum foil for air conditioner and preparation method thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102676861A (en) * | 2012-05-30 | 2012-09-19 | 东北大学 | Method for preparing aluminium foil blanks |
| CN102703776A (en) * | 2012-06-08 | 2012-10-03 | 中铝瑞闽铝板带有限公司 | Aluminum alloy substrate for light-emitting diode (LED) television and production method for aluminum alloy substrate |
| CN104141069A (en) * | 2014-07-07 | 2014-11-12 | 马鞍山市万鑫铸造有限公司 | Aluminum-based composite heat radiating material with low heat resistance for LED (Light Emitting Diode) |
| CN104152763A (en) * | 2014-07-07 | 2014-11-19 | 马鞍山市万鑫铸造有限公司 | Colloidal graphite powder contained aluminum-based composite heat radiating material for LED |
| CN104164592A (en) * | 2014-07-07 | 2014-11-26 | 马鞍山市万鑫铸造有限公司 | A light temperature-resistant aluminum-based composite heat dissipation material used for LEDs |
| CN104164595A (en) * | 2014-07-07 | 2014-11-26 | 马鞍山市万鑫铸造有限公司 | An aluminum-based composite heat dissipation material with good optical properties for LEDs |
| CN104141071B (en) * | 2014-07-08 | 2016-06-29 | 蚌埠市英路光电有限公司 | A kind of LED aluminum-base composite heat sink material containing modified forsterite |
| CN104141071A (en) * | 2014-07-08 | 2014-11-12 | 蚌埠市英路光电有限公司 | Modified forsterite-containing aluminum-based composite heat-dispersing material |
| CN104152756A (en) * | 2014-07-08 | 2014-11-19 | 蚌埠市英路光电有限公司 | Aluminum-based composite heat radiating material containing modified bentonite for LED (Light-emitting Diode) |
| CN104164596A (en) * | 2014-07-22 | 2014-11-26 | 安徽冠宇光电科技有限公司 | LED aluminum-based composite heat-dissipating material containing modified fly ash |
| CN104451273A (en) * | 2014-11-27 | 2015-03-25 | 广西南南铝箔有限责任公司 | Method for producing aluminum wafers through cast rolling |
| CN109881031A (en) * | 2019-03-01 | 2019-06-14 | 江苏鼎胜新能源材料股份有限公司 | A kind of production method of 7072 alloy blank |
| CN111647777A (en) * | 2020-05-27 | 2020-09-11 | 江苏鼎胜新能源材料股份有限公司 | Glass division bar aluminum strip and preparation method thereof |
| CN111575513A (en) * | 2020-06-12 | 2020-08-25 | 包头常铝北方铝业有限责任公司 | Aluminum alloy strip, preparation method thereof and aluminum division bar for hollow glass |
| CN115927918A (en) * | 2021-12-17 | 2023-04-07 | 江苏常铝铝业集团股份有限公司 | Aluminum foil for air conditioner and preparation method thereof |
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Application publication date: 20120502 |