CN107641742A - A kind of preparation method of high heat conduction aluminium alloy - Google Patents
A kind of preparation method of high heat conduction aluminium alloy Download PDFInfo
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- CN107641742A CN107641742A CN201710764575.4A CN201710764575A CN107641742A CN 107641742 A CN107641742 A CN 107641742A CN 201710764575 A CN201710764575 A CN 201710764575A CN 107641742 A CN107641742 A CN 107641742A
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- aluminium
- high heat
- heat conduction
- metallic silicon
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Abstract
The present invention relates to a kind of preparation method of high heat conduction aluminium alloy, the high heat conduction aluminium alloy includes the component of weight percent amount:Si:2.0% 3.6%, Mg:0.5% 1.2%, surplus is Al and inevitable impurity;Preparation method comprises the following steps:1) melting:Aluminium ingot and remaining alloy ratio according to be for the first time the 50% of total amount, be the 50% of total amount for the second time, order of addition is according to first adding aluminium ingot to add intermediate alloy again;2) add temperature of aluminum liquid in the technical process stove of metallic silicon and reach more than 730 DEG C, metallic silicon fully dissolves and stirred.The material of the present invention passes through test, thermal property:Thermal conductivity can reach 190W/mK;ADC12 thermal conductivity only has 120W/mK.The material of the present invention is that have the advantages of heat transfer is fast, rapid heat dissipation.
Description
Technical field
The present invention relates to a kind of preparation method of aluminum alloy with high thermal conductivity, belongs to non-ferrous alloy material preparation technology neck
Domain.
Background technology
With new industrial expansion, enterprise increasingly focuses on the highly integrated of product and equipment, especially in communication product
And in equipment, highly heat-conductive material is for designing in recent years the heat transfer requirement of equipment.In the feelings that properties are excellent
Under condition, highly heat-conductive material reliably solves the problems, such as heat transfer in product and equipment, the effective heat biography carried out between radiator
Lead.With outside this, in terms of the aluminum alloy materials of high thermal conductivity can also be applied to electronics manufacturing, such as mobile phone shell, notebook
The radiator of computer, computer housing etc.;In terms of auto manufacturing, for example, automobile engine part part, automobile part car body
Support etc..Illuminate in manufacturing industry, the aluminium base of LED, radiating lamp bracket etc..These are all the things being seen everywhere in life.
Even in future soon, with the maturation of aluminium alloy technology, aluminium alloy also can be largely applied in terms of space flight and aviation manufacturing industry
High thermal conductivity materials.
The content of the invention
The purpose of the present invention is to propose to a kind of preparation method of Al-alloy material, has high heat conductance, high heat-sinking capability
With good mechanical property, for aluminium alloy light weight chemical industry.To realize object above, the present invention by using Al-Si alloys as
Basis, remaining alloying element is adjusted, reach high heat conductance and excellent mechanical property requirements.
The present invention concrete scheme be:A kind of preparation method of high heat conduction aluminium alloy, the high heat conduction aluminium alloy include weight
Measure the component of percentage amounts:Si:2.0%-3.6%, Mg:0.5%-1.2%, surplus are Al and inevitable impurity;
Preparation method comprises the following steps:
1) melting:Aluminium ingot and remaining alloy ratio according to be for the first time the 50% of total amount, be the 50% of total amount for the second time, add it is suitable
Sequence according to first plus aluminium ingot add intermediate alloy again.
2) add temperature of aluminum liquid in the technical process stove of metallic silicon and reach more than 730 DEG C, metallic silicon fully dissolves and stirred.
Further, it also includes:Fe:≤ 0.30%, Zn:≤ 0.09%, Cu:≤ 1.0%, Mn:≤ 0.35%, Ti:≤
0.15%th, remaining content of impurities≤0.25%.
Alloying element must be according to component requirements, and it is formulated and mass fraction is expressed as:
Si:2.0%-3.6%;
Fe:≤ 0.3%;
Zn:≤ 0.09%;
Mg:0.5%-1.2%;
Cu:≤ 1.0%;
Mn:≤ 0.35%;
Ti:≤ 0.15%;
Sn:≤ 0.01%;
V:≤ 0.01%;
Ca:≤ 0.01%;
B:≤ 0.01%;
Remaining impurity≤0.25%;
Al surpluses (complement to 100%).
The preparation method of casting aluminum alloy of the present invention is as follows:
(1) it is the mixing such as 50% aluminium ingot of total amount and aluminium copper, alumal by quality, is warming up to 740-820 DEG C
Fusing.
(2) metallic silicon is added, is sufficiently stirred, metallic silicon fully dissolves.
(3) add remaining 50% and the aluminium ingot having been warmed up, temperature are adjusted to 730-750 DEG C.
(4) it is sufficiently stirred and samples and carries out procedure component detection, adjusting process requirement;
(5) refining of 99.999% high pure nitrogen is passed through, is passed through by 2.0L/min of gas flow, and with refining agent access tube
The interior refining agent for being mode, participating in the 0.15%-0.2% of aluminium liquid gross mass in stove.Scum silica frost is clawed after refining, processing is clean.
(6) 10-15min is stood;
(7) take a sample to check composition, adjust to technological requirement.
(8) temperature control is cast at 700-720 DEG C.
(9) it is qualified to detect composition, packaging and warehousing.
The beneficial effects of the invention are as follows:
The material of the present invention passes through test, thermal property:Thermal conductivity can reach 190W/mK;ADC12 thermal conductivity only has
120W/m·K.The material of the present invention is that have the advantages of heat transfer is fast, rapid heat dissipation.
Mechanical property after tested:
Yield strength RM:≥115;
Tensile strength sigma b (MPa):≥190;
Brinell hardness:≥71HB.
Embodiment
Alloying element of the present invention must be according to component requirements, and it is formulated and mass fraction is expressed as:
Si:2.0%-3.6%;
Fe:≤ 0.3%;
Zn:≤ 0.09%;
Mg:0.5%-1.2%;
Cu:≤ 1.0%;
Mn:≤ 0.35%;
Ti:≤ 0.15%;
Sn:≤ 0.01%;
V:≤ 0.01%;
Ca:≤ 0.01%;
B:≤ 0.01%;
Remaining impurity≤0.25%;
Al surpluses (complement to 100%).
The preparation method of casting aluminum alloy of the present invention is as follows:
(1) it is the mixing such as 50% aluminium ingot of total amount and aluminium copper, alumal by quality, is warming up to 740-820 DEG C
Fusing.
(2) metallic silicon is added, is sufficiently stirred, metallic silicon fully dissolves.
(3) add remaining 50% and the aluminium ingot having been warmed up, temperature are adjusted to 730-750 DEG C.
(4) it is sufficiently stirred and samples and carries out procedure component detection, adjusting process requirement;
(5) refining of 99.999% high pure nitrogen is passed through, is passed through by 2.0L/min of gas flow, and with refining agent access tube
The interior refining agent for being mode, participating in the 0.15%-0.2% of aluminium liquid gross mass in stove.Scum silica frost is clawed after refining, processing is clean.
(6) 10-15min is stood;
(7) take a sample to check composition, adjust to technological requirement.
(8) temperature control is cast at 700-720 DEG C.
(9) it is qualified to detect composition, packaging and warehousing.
The beneficial effects of the invention are as follows:
The material of the present invention passes through test, thermal property:Thermal conductivity can reach 190W/mK;ADC12 thermal conductivity only has
120W/m·K.The material of the present invention is that have the advantages of heat transfer is fast, rapid heat dissipation.
Mechanical property:
Yield strength RM:≥115;
Tensile strength sigma b (MPa):≥190;
Brinell hardness:≥71HB.
Claims (2)
1. a kind of preparation method of high heat conduction aluminium alloy, the high heat conduction aluminium alloy include the component of weight percent amount:Si:
2.0%-3.6%, Mg:0.5%-1.2%, surplus are Al and inevitable impurity;
Characterized in that, preparation method comprises the following steps:
1) melting:Aluminium ingot and remaining alloy ratio according to be for the first time the 50% of total amount, be the 50% of total amount for the second time, add it is suitable
Sequence according to first plus aluminium ingot add intermediate alloy again;
2) add temperature of aluminum liquid in the technical process stove of metallic silicon and reach more than 730 DEG C, metallic silicon fully dissolves and stirred.
2. a kind of preparation method of high heat conduction aluminium alloy according to claim 1, the preparation method are:
(1) it is the mixing such as 50% aluminium ingot of total amount and aluminium copper, alumal by quality, is warming up to 740-820 DEG C of fusing.
(2) metallic silicon is added, is sufficiently stirred, metallic silicon fully dissolves.
(3) add remaining 50% and the aluminium ingot having been warmed up, temperature are adjusted to 730-750 DEG C.
(4) it is sufficiently stirred and samples and carries out procedure component detection, adjusting process requirement;
(5) refining of 99.999% high pure nitrogen is passed through, is passed through by 2.0L/min of gas flow, and to be in refining agent access tube
Mode, participate in the refining agent of the 0.15%-0.2% of aluminium liquid gross mass in stove.Scum silica frost is clawed after refining, processing is clean.
(6) 10-15min is stood;
(7) take a sample to check composition, adjust to technological requirement.
(8) temperature control is cast at 700-720 DEG C.
(9) it is qualified to detect composition, packaging and warehousing.
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CN201710764575.4A CN107641742A (en) | 2017-08-30 | 2017-08-30 | A kind of preparation method of high heat conduction aluminium alloy |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6342344A (en) * | 1986-08-06 | 1988-02-23 | Honda Motor Co Ltd | Al alloy for powder metallurgy excellent in high temperature strength characteristic |
CN1529763A (en) * | 2001-04-09 | 2004-09-15 | 旭技术株式会社 | Aluminium allloy for casting/forging, aluminium alloy cast/forged product and producing methods |
CN101248200A (en) * | 2005-08-31 | 2008-08-20 | Ksm铸造有限公司 | Aluminum casting alloy |
CN104726753A (en) * | 2015-03-23 | 2015-06-24 | 苏州市神龙门窗有限公司 | Preparation method of aluminum alloy section for doors/windows |
CN105177368A (en) * | 2015-08-10 | 2015-12-23 | 高安市金良轩科技有限公司 | Pressure cast rare earth aluminum alloy with high thermal conductivity and high electrical conductivity and preparing method thereof |
-
2017
- 2017-08-30 CN CN201710764575.4A patent/CN107641742A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6342344A (en) * | 1986-08-06 | 1988-02-23 | Honda Motor Co Ltd | Al alloy for powder metallurgy excellent in high temperature strength characteristic |
CN1529763A (en) * | 2001-04-09 | 2004-09-15 | 旭技术株式会社 | Aluminium allloy for casting/forging, aluminium alloy cast/forged product and producing methods |
CN101248200A (en) * | 2005-08-31 | 2008-08-20 | Ksm铸造有限公司 | Aluminum casting alloy |
CN104726753A (en) * | 2015-03-23 | 2015-06-24 | 苏州市神龙门窗有限公司 | Preparation method of aluminum alloy section for doors/windows |
CN105177368A (en) * | 2015-08-10 | 2015-12-23 | 高安市金良轩科技有限公司 | Pressure cast rare earth aluminum alloy with high thermal conductivity and high electrical conductivity and preparing method thereof |
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Address after: 201514 699 Zhen Yan Road, Zhang Yan Town, Jinshan District, Shanghai Applicant after: Shuai wing Chi New Material Group Co., Ltd. Applicant after: Shanghai Institute of Technology Address before: 201514 699 Zhen Yan Road, Zhang Yan Town, Jinshan District, Shanghai Applicant before: Shanghai Shuaiyichi Aluminum Alloy New Material Co., Ltd. Applicant before: Shanghai Institute of Technology |
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Application publication date: 20180130 |