CN106011553A - Nanometer aluminum oxide reinforced aluminum magnesium alloy material for automobile electronic packaging and preparation method of nanometer aluminum oxide reinforced aluminum magnesium alloy material - Google Patents
Nanometer aluminum oxide reinforced aluminum magnesium alloy material for automobile electronic packaging and preparation method of nanometer aluminum oxide reinforced aluminum magnesium alloy material Download PDFInfo
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- CN106011553A CN106011553A CN201610550307.8A CN201610550307A CN106011553A CN 106011553 A CN106011553 A CN 106011553A CN 201610550307 A CN201610550307 A CN 201610550307A CN 106011553 A CN106011553 A CN 106011553A
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- aluminium oxide
- alloy material
- nano aluminium
- hydronalium
- magnesium alloy
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- 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
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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
- C22C1/10—Alloys containing non-metals
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
- C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
- C22C32/0036—Matrix based on Al, Mg, Be or alloys thereof
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- Organic Chemistry (AREA)
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Abstract
The invention discloses a nanometer aluminum oxide reinforced aluminum magnesium alloy material for automobile electronic packaging. The alloy material comprises, by weight, 5% to 8% of magnesium, 1% to 2% of zinc, 2% to 3% of copper, 40% to 60% of nanometer aluminum oxide sol, 1% to 2% of a pore forming agent, 0.5% to 1% of absolute ethyl alcohol and the balance aluminum.
Description
Technical field
The present invention relates to electronic package material technical field, particularly relate to a kind of automotive electronics encapsulation nano aluminium oxide and strengthen hydronalium and preparation method thereof.
Background technology
Automotive electronics is the general name of electronic control device for vehicle and vehicular automotive electronic device, and automotive electronics occupies vital position in automotive engineering, is exploitation new model, improves the most important technical measures of automotive performance.Owing to automotive interior exists the adverse circumstances factors such as extreme operating temperature range, strong mechanical vibration and spot be more, automobile electronics performance to be guaranteed is interference-free, must carry out the encapsulation work of product, the encapsulating material chosen is to realize the technology trends such as industry lower cost, higher function, higher reliability.
Preferably electronic package material thermal coefficient of expansion to be possessed is low, high heat conduction, air-tightness is good, enough strength and stiffness, it is easy to the advantage such as machine-shaping and welding and lightweight light weight, the most conventional a few class wrapper materials mainly have plastic encapsulant, ceramic packaging material, Materials for Metal Packaging and several big class of metal-base composites, wherein metal-based compound electronics encapsulating material has intensity height, the advantages such as heat conductivity is good become the focus of industry research, especially aluminium based metal material, the advantage of its lightweight is extensively favored at automotive field, the combination property improving aluminum-based packaging material is also study hotspot." vacuum heating-press sintering method prepares diamond/Al-Cu based composites ", a literary composition utilized the mode of vacuum heating-press sintering to improve the interface untoward reaction of diamond and aluminum, it is simultaneously introduced Cu powder and improves performance, this method uses micron-sized diamond powder body, although obtaining the composite of high heat conductance, but the intensity of alloy material, plasticity reduce the most to a certain extent, range is limited, nano grade inorganic material has prominent advantage in terms of improving alloy property, but the dispersibility that nanometer materials are in the alloy is the most not fully up to expectations.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of automotive electronics encapsulation nano aluminium oxide strengthens hydronalium and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of automotive electronics encapsulation nano aluminium oxide strengthens hydronalium, and this alloy material is made up of the raw material of following weight portion: magnesium 5-8%, zinc 1-2%, copper 2-3%, nano alumina sol 40-60%, pore creating material 1-2%, dehydrated alcohol 0.5-1%, surplus are aluminum.
Described a kind of automotive electronics encapsulation nano aluminium oxide strengthens hydronalium, described nano alumina sol is formulated by following methods: Dodecyl trimethyl ammonium chloride put in dehydrated alcohol, stirring puts into nano aluminium oxide after being completely dissolved to it, sonic oscillation dispersion 5-10h, to obtain final product；Wherein nano aluminium oxide, dehydrated alcohol, the weight ratio of Dodecyl trimethyl ammonium chloride three are 1:4-5:0.1.
Described a kind of automotive electronics encapsulation nano aluminium oxide strengthens hydronalium, and described pore creating material is the one in sodium chloride, sodium carbonate, spherical carbamide.
Described a kind of automotive electronics encapsulation nano aluminium oxide strengthens the preparation method of hydronalium, and described preparation method comprises the following steps:
(1) first by aluminum, magnesium, zinc, copper, pore creating material, dehydrated alcohol mixes, with 200-500 turn/rotating speed of min mixes powder 5-10min, gained mixed material obtains green compact through compacting densification, subsequently green compact are put in mould Thermocompressed sintering and forming under vacuum, sintering process is: system is warming up to 550-600 DEG C with the programming rate of 15-20 DEG C/min, pressurize when temperature reaches 500 DEG C, pressure is 50-60MPa, heat preservation sintering 30-40min, naturally cool to release after room temperature subsequently, products obtained therefrom is put in water and is dried after dissolution pore creating material, obtain Al-Mg alloy foam prefabricated component standby；
(2) the Al-Mg alloy foam prefabricated component of step (1) gained is put in mould, it is subsequently added nano alumina sol, long-pending 40-60min is oozed under-0.01--0.05MPa, process recovers normal pressure after terminating, and takes out prefabricated component, dried 2-3h in 80-100 DEG C of baking oven, subsequently prefabricated component is placed again in mould, 600-650 DEG C, again sinter 20-30min under 20-30MPa pressure, release of finally lowering the temperature, i.e. obtain described encapsulation alloy material after being cooled to room temperature.
The invention have the advantage that
(1) encapsulating material of the present invention is using almag as base material, and blends zinc, copper wherein, improves the comprehensive mechanical property of composite alloy material, has lightweight, high-strength advantage.
(2) alloy powder is first processed into Al-Mg alloy foam prefabricated component in technique by the present invention, and nano alumina sol vacuum oozed amass in alloy components, finished product is prepared again after double sintering, this technological process improves the phenomenon that nano material is easily reunited in alloy material, degree of scatter is higher, effectively raise the mechanical property of alloy material, it is thus achieved that there is high plasticity, high heat conduction, lightweight, sound-absorbing, the alloy material of anti-impact.
As can be seen here, electronic package material excellent combination property prepared by the alloy material of the present invention, raw material availability is high, automobile electronics working environment of fitting, economical and practical.
Detailed description of the invention
A kind of automotive electronics encapsulation nano aluminium oxide strengthens hydronalium, and this alloy material is made up of the raw material of following weight portion: magnesium 5%, zinc 1%, copper 2%, nano alumina sol 40%, pore creating material 1%, dehydrated alcohol 0.5%, surplus are aluminum.
Wherein nano alumina sol is formulated by following methods: Dodecyl trimethyl ammonium chloride put in dehydrated alcohol, and stirring puts into nano aluminium oxide, sonic oscillation dispersion 5h to it after being completely dissolved, to obtain final product；Wherein nano aluminium oxide, dehydrated alcohol, the weight ratio of Dodecyl trimethyl ammonium chloride three are 1:4:0.1.
The pore creating material used is spherical carbamide.
The preparation method of this alloy material comprises the following steps:
(1) first by aluminum, magnesium, zinc, copper, pore creating material, dehydrated alcohol mixing, powder 5min is mixed with the rotating speed of 200 turns/min, gained mixed material obtains green compact through compacting densification, subsequently green compact are put in mould Thermocompressed sintering and forming under vacuum, sintering process is: system is warming up to 550 DEG C with the programming rate of 15 DEG C/min, pressurize when temperature reaches 500 DEG C, pressure is 50MPa, heat preservation sintering 40min, naturally cool to release after room temperature subsequently, products obtained therefrom is put in water and is dried after dissolution pore creating material, obtains Al-Mg alloy foam prefabricated component standby；
(2) the Al-Mg alloy foam prefabricated component of step (1) gained is put in mould, it is subsequently added nano alumina sol, long-pending 60min is oozed under-0.01MPa, process recovers normal pressure after terminating, and takes out prefabricated component, dried 3h in 80 DEG C of baking ovens, subsequently prefabricated component is placed again in mould, 600 DEG C, again sinter 30min under 30MPa pressure, release of finally lowering the temperature, i.e. obtain described encapsulation alloy material after being cooled to room temperature.
Taking obtained material and prepare standard specimen, carry out performance test according to relevant criterion, test result is:
Density: 2.48g/cm3；Bending strength: 42MPa；Thermal conductivity: 185W/m.k；Thermal coefficient of expansion: 3.42 × 10-6m/k；The most solderable: to be.
Claims (4)
1. an automotive electronics encapsulation nano aluminium oxide strengthens hydronalium, it is characterized in that, this alloy material is made up of the raw material of following weight portion: magnesium 5-8%, zinc 1-2%, copper 2-3%, nano alumina sol 40-60%, pore creating material 1-2%, dehydrated alcohol 0.5-1%, surplus are aluminum.
2. a kind of automotive electronics encapsulation nano aluminium oxide as claimed in claim 1 strengthens hydronalium, it is characterized in that, described nano alumina sol is formulated by following methods: Dodecyl trimethyl ammonium chloride put in dehydrated alcohol, stirring puts into nano aluminium oxide after being completely dissolved to it, sonic oscillation dispersion 5-10h, to obtain final product；Wherein nano aluminium oxide, dehydrated alcohol, the weight ratio of Dodecyl trimethyl ammonium chloride three are 1:4-5:0.1.
3. a kind of automotive electronics encapsulation nano aluminium oxide as claimed in claim 1 strengthens hydronalium, it is characterised in that described pore creating material is the one in sodium chloride, sodium carbonate, spherical carbamide.
A kind of automotive electronics encapsulation nano aluminium oxide the most as claimed in claim 1 strengthens the preparation method of hydronalium, it is characterised in that described preparation method comprises the following steps:
(1) first by aluminum, magnesium, zinc, copper, pore creating material, dehydrated alcohol mixes, with 200-500 turn/rotating speed of min mixes powder 5-10min, gained mixed material obtains green compact through compacting densification, subsequently green compact are put in mould Thermocompressed sintering and forming under vacuum, sintering process is: system is warming up to 550-600 DEG C with the programming rate of 15-20 DEG C/min, pressurize when temperature reaches 500 DEG C, pressure is 50-60MPa, heat preservation sintering 30-40min, naturally cool to release after room temperature subsequently, products obtained therefrom is put in water and is dried after dissolution pore creating material, obtain Al-Mg alloy foam prefabricated component standby；
(2) the Al-Mg alloy foam prefabricated component of step (1) gained is put in mould, it is subsequently added nano alumina sol, long-pending 40-60min is oozed under-0.01--0.05MPa, process recovers normal pressure after terminating, and takes out prefabricated component, dried 2-3h in 80-100 DEG C of baking oven, subsequently prefabricated component is placed again in mould, 600-650 DEG C, again sinter 20-30min under 20-30MPa pressure, release of finally lowering the temperature, i.e. obtain described encapsulation alloy material after being cooled to room temperature.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610550307.8A CN106011553A (en) | 2016-07-13 | 2016-07-13 | Nanometer aluminum oxide reinforced aluminum magnesium alloy material for automobile electronic packaging and preparation method of nanometer aluminum oxide reinforced aluminum magnesium alloy material |
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| CN201610550307.8A CN106011553A (en) | 2016-07-13 | 2016-07-13 | Nanometer aluminum oxide reinforced aluminum magnesium alloy material for automobile electronic packaging and preparation method of nanometer aluminum oxide reinforced aluminum magnesium alloy material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975751A (en) * | 2017-04-24 | 2017-07-25 | 苏州南尔材料科技有限公司 | A kind of preparation method of antistatic alloy material |
| CN114875268A (en) * | 2022-05-27 | 2022-08-09 | 安徽佳晟金属科技有限公司 | Aluminum alloy bar and production process thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1643171A (en) * | 2002-04-10 | 2005-07-20 | 美国国家航空暨太空总署 | High strength aluminum alloy for high temperature applications |
| CN104894418A (en) * | 2015-07-01 | 2015-09-09 | 天津大学 | In-situ synthesized spinel whisker reinforced aluminum-based composite foam and preparation method thereof |
| CN105256177A (en) * | 2015-10-20 | 2016-01-20 | 安徽天祥空调科技有限公司 | Light and thin type high-elastic hard aluminum alloy sheet for air-conditioner radiators and preparation method of aluminum alloy sheet |
-
2016
- 2016-07-13 CN CN201610550307.8A patent/CN106011553A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1643171A (en) * | 2002-04-10 | 2005-07-20 | 美国国家航空暨太空总署 | High strength aluminum alloy for high temperature applications |
| CN104894418A (en) * | 2015-07-01 | 2015-09-09 | 天津大学 | In-situ synthesized spinel whisker reinforced aluminum-based composite foam and preparation method thereof |
| CN105256177A (en) * | 2015-10-20 | 2016-01-20 | 安徽天祥空调科技有限公司 | Light and thin type high-elastic hard aluminum alloy sheet for air-conditioner radiators and preparation method of aluminum alloy sheet |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975751A (en) * | 2017-04-24 | 2017-07-25 | 苏州南尔材料科技有限公司 | A kind of preparation method of antistatic alloy material |
| CN114875268A (en) * | 2022-05-27 | 2022-08-09 | 安徽佳晟金属科技有限公司 | Aluminum alloy bar and production process thereof |
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Application publication date: 20161012 |
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