CN102091783A - Method for manufacturing composite radiating metal - Google Patents

Method for manufacturing composite radiating metal Download PDF

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Publication number
CN102091783A
CN102091783A CN2009103113072A CN200910311307A CN102091783A CN 102091783 A CN102091783 A CN 102091783A CN 2009103113072 A CN2009103113072 A CN 2009103113072A CN 200910311307 A CN200910311307 A CN 200910311307A CN 102091783 A CN102091783 A CN 102091783A
Authority
CN
China
Prior art keywords
copper alloy
radiating metal
heat radiating
temperature
mentioned
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN2009103113072A
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Chinese (zh)
Inventor
吴政道
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.)
Mitac Precision Technology Kunshan Ltd
Original Assignee
Mitac Precision Technology Kunshan Ltd
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 Mitac Precision Technology Kunshan Ltd filed Critical Mitac Precision Technology Kunshan Ltd
Priority to CN2009103113072A priority Critical patent/CN102091783A/en
Publication of CN102091783A publication Critical patent/CN102091783A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a method for manufacturing a composite radiating metal, which comprises the following steps of: preparing a copper alloy matrix; heating the copper alloy matrix at high temperature of between 200 and 600DEG C; burying the heated copper alloy matrix in a required mold; and injecting magnesium alloy into the mold in a semisolid injection mode to combine the magnesium alloy and the copper alloy matrix. By the method for manufacturing the composite radiating metal, when the magnesium alloy and the copper alloy are combined, the manufacture procedure and the process are simple, the mass production output is high, and the cost is low; in addition, radiators in any shape can be manufactured; meanwhile, high radiating property is achieved.

Description

The composite heat radiating metal preparation method
[technical field]
The invention relates to a kind of heat radiating metal preparation method, particularly the composite heat radiating metal preparation method that combines relevant for a kind of magnesium alloy and copper alloy.
[background technology]
The effect of heat radiation concerns service life of electronic product, early stage radiator all is made with aluminium extruded type, its heat absorption is very limited with the effect of heat radiation, but develop not to be inconsistent demand gradually with the progressive of epoch, industry is actively to develop to meet metal radiator for this reason, the multiple on the market existing combined heat radiating member of elder generation, its outward appearance appearance is perhaps different separately, but the radiator that adopts up to present its inside is mostly with aluminium, its heat conduction then all is to select for use copper to make, main is good heat carrier because of the copper metal, it is fast that the thermal diffusivity of aluminium is compared copper again, but in fact, the radiating effect that its product really can produce, it also is not the most desirable reaching electromagnetic wave shielding.So, the people in the industry compares with aluminium alloy by great deal of experiment data proof magnesium alloy, and to have strength/weight ratio good, rigidity is good, shock-resistant, recyclable, wear-resisting, advantages such as electromagnetic wave shielding is good, so industry begins to attempt replacing aluminium alloy with magnesium alloy, existing manufacture craft is: copper is engaged it with the forging mode with aluminium or magnesium, but its processing technology cost height, its faying face is easy to be out of shape in the process of roll extrusion, with reference to shown in Figure 1, the processing schematic diagram that it is made for existing roll extrusion, mould 3 is easy to radiating surface 1 in the process of roll extrusion as figure shows, contact-making surface 2 crimps, thereby need extra operation to handle, existing in addition forging mode is limited to when making radiator very much, only be suitable for the heat spreader structures design (plane combines with the plane) of 2D, such structural design has also influenced the effect of heat radiation, finally also can influence the appearance of product.
In view of this, the present invention proposes a kind of composite heat radiating metal preparation method, its processing procedure and technology are simple when making that by this composite heat radiating metal preparation method magnesium alloy combines with copper alloy, the production height, cost is low, and can make the radiator of arbitrary shape, also realize good thermal diffusivity simultaneously.
[summary of the invention]
The purpose of this invention is to provide a kind of composite heat radiating metal preparation method, to solve complex manufacturing technology in the prior art, problem that cost is high.
According to purpose of the present invention, a kind of composite heat radiating metal preparation method is proposed, it comprises following method step:
Produce a copper alloy base material;
With above-mentioned copper alloy base material high temperature heating, heating-up temperature is 200 ℃~600 ℃;
Copper alloy base material after the heating is imbedded in the required mould;
The mode that penetrates with semisolid is injected magnesium alloy in the above-mentioned mould that HTHP makes both combinations when penetrating.
Preferably, above-mentioned copper alloy is fine copper, red metal, bronze or brass.
Preferably, this method also comprises: with after magnesium alloy combines, carry out surface treatment at copper alloy.
Preferably, above-mentioned surface treatment is for changing into processing.
Compared to prior art, composite heat radiating metal preparation method of the present invention makes that its processing procedure and technology were simple when magnesium alloy combined with copper alloy, and magnesium alloy combines with copper reliably, the production height, cost is low, and can make the radiator of arbitrary shape, has also realized good thermal diffusivity simultaneously.
[description of drawings]
Fig. 1 illustrates the processing schematic diagram that existing roll extrusion is made.
Fig. 2 illustrates the flow chart of steps of composite heat radiating metal preparation method of the present invention.
[specific embodiment]
With reference to shown in Figure 2, a kind of composite heat radiating metal preparation method, in present embodiment, it is as follows that the method comprising the steps of:
Step 100: the copper alloy base material of producing a required arbitrary shape, this copper alloy base material is preferably fine copper or red metal in present embodiment, also can be bronze or brass in addition, choose the required material of base material according to the actual needs, wherein, when making base material, can produce the base material (2D, 3D shape all can) of arbitrary shape according to the needs of made product, to reach best radiating effect;
Step 200: above-mentioned copper alloy base material is inserted high temperature furnace heating, and its heating-up temperature is 200 ℃~600 ℃, makes the copper alloy base material reach certain temperature, so that can reach one well in conjunction with effect following when combining with magnesium alloy;
Step 300: the copper alloy base material of heating is imbedded in the mould and located, fixture in the mould is fixed this copper alloy base material, at this moment, the mode that penetrates with semisolid is injected magnesium alloy and is made both combinations in the above-mentioned mould, wherein, it is to continue to shear and the quick cooled semi-solid magnesium alloy of metering ejaculation with a screw rod that semisolid in the present embodiment penetrates, in this process, its mould keeps temperature 240-270 degree, mold temperature 220-240 degree in the moulding, cool time after the material feeding (being that material feeding is to the die sinking time) 5-15s, molding mass pipe temperature 590-610 degree, firing rate 1-3m/s, penetrate and press 80-120kgf/cm 2, above-mentioned ejaculation is finished, and after the cooling, the fixture of mould is unclamped alloy base material, treats promptly to obtain after the demoulding radiator workpiece of moulding;
In present embodiment; preferably also comprise step 400: the workpiece after the above-mentioned moulding is carried out surface treatment; this surface treatment is and changes into processing; this changes into and is treated to: use magnesium alloy chemical synthesis treatment liquid; strengthen the diaphragm of corrosion stability of magnesium alloy with formation one deck, thereby prevent that magnesium alloy from producing corrosion in atmosphere.
Method for manufacturing composite radiating metal of the present invention can be made the radiator of arbitrary shape, increased the heat radiation area of radiator, be conducive to the heat radiation of product, and after adopting the semisolid emission technology, can be arbitrary shape increase heat-conducting area at copper alloy base material and magnesium alloy combination interface, and have high heat conduction, fast heat radiation, light, the low cost and other advantages of weight, so producing radiator, the present invention has good development prospect.

Claims (5)

1. a composite heat radiating metal preparation method is characterized in that, comprises following method step:
Produce a copper alloy base material;
With above-mentioned copper alloy base material high temperature heating, heating-up temperature is 200 ℃~600 ℃;
Copper alloy base material after the heating is imbedded in the required mould;
The mode that penetrates with semisolid is injected magnesium alloy in the above-mentioned mould that HTHP makes both combinations when penetrating.
2. composite heat radiating metal preparation method as claimed in claim 1 is characterized in that, above-mentioned copper alloy is fine copper, red metal, bronze or brass.
3. composite heat radiating metal preparation method as claimed in claim 1, it is characterized in that the mould of the mode that above-mentioned semisolid penetrates keeps in temperature 240-270 degree, the moulding after mold temperature 220-240 degree, the material feeding (being that material feeding is to the die sinking time) 5-15s cool time, molding mass pipe temperature 590-610 degree, firing rate 1-3m/s, penetrates and press 80-120kgf/cm2.
4. composite heat radiating metal preparation method as claimed in claim 1 is characterized in that, this method also comprises: with after magnesium alloy combines, carry out surface treatment at copper alloy.
5. composite heat radiating metal preparation method as claimed in claim 4 is characterized in that above-mentioned surface treatment is for changing into processing.
CN2009103113072A 2009-12-14 2009-12-14 Method for manufacturing composite radiating metal Pending CN102091783A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009103113072A CN102091783A (en) 2009-12-14 2009-12-14 Method for manufacturing composite radiating metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009103113072A CN102091783A (en) 2009-12-14 2009-12-14 Method for manufacturing composite radiating metal

Publications (1)

Publication Number Publication Date
CN102091783A true CN102091783A (en) 2011-06-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009103113072A Pending CN102091783A (en) 2009-12-14 2009-12-14 Method for manufacturing composite radiating metal

Country Status (1)

Country Link
CN (1) CN102091783A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102966928A (en) * 2012-10-29 2013-03-13 长春工业大学 High-efficiency radiator for light-emitting diode (LED) lamp and manufacturing method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102966928A (en) * 2012-10-29 2013-03-13 长春工业大学 High-efficiency radiator for light-emitting diode (LED) lamp and manufacturing method thereof

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Application publication date: 20110615

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