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 PDF

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Publication number
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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CN
China
Prior art keywords
preparation
aluminium
high heat
heat conduction
metallic silicon
Prior art date
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Application number
CN201710764575.4A
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Chinese (zh)
Inventor
程帅
徐春
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI SHUAIYICHI ALUMINUM ALLOY NEW MATERIAL Co Ltd
Shanghai Institute of Technology
Original Assignee
SHANGHAI SHUAIYICHI ALUMINUM ALLOY NEW MATERIAL Co Ltd
Shanghai Institute of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHANGHAI SHUAIYICHI ALUMINUM ALLOY NEW MATERIAL Co Ltd, Shanghai Institute of Technology filed Critical SHANGHAI SHUAIYICHI ALUMINUM ALLOY NEW MATERIAL Co Ltd
Priority to CN201710764575.4A priority Critical patent/CN107641742A/en
Publication of CN107641742A publication Critical patent/CN107641742A/en
Pending legal-status Critical Current

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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

A kind of preparation method of high heat conduction aluminium alloy
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.
CN201710764575.4A 2017-08-30 2017-08-30 A kind of preparation method of high heat conduction aluminium alloy Pending CN107641742A (en)

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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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Application Number Priority Date Filing Date Title
CN201710764575.4A CN107641742A (en) 2017-08-30 2017-08-30 A kind of preparation method of high heat conduction aluminium alloy

Publications (1)

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CN107641742A true CN107641742A (en) 2018-01-30

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Citations (5)

* Cited by examiner, † Cited by third party
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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