CN102091773A - Manufacturing method of heat radiating metal - Google Patents

Manufacturing method of heat radiating metal Download PDF

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Publication number
CN102091773A
CN102091773A CN2009103113104A CN200910311310A CN102091773A CN 102091773 A CN102091773 A CN 102091773A CN 2009103113104 A CN2009103113104 A CN 2009103113104A CN 200910311310 A CN200910311310 A CN 200910311310A CN 102091773 A CN102091773 A CN 102091773A
Authority
CN
China
Prior art keywords
heat radiating
copper alloy
radiating metal
copper
magnesium alloy
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
CN2009103113104A
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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 CN2009103113104A priority Critical patent/CN102091773A/en
Publication of CN102091773A publication Critical patent/CN102091773A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a manufacturing method of heat radiating metal, comprising the following steps of: preparing a copper alloy base material; heating the copper alloy base material at a high temperature; putting the heated copper alloy base material in a required die; and pouring molten magnesium alloy in the die by casting to combine the copper alloy with the magnesium alloy. When the magnesium alloy and the copper alloy are combined, the manufacturing method of heat radiating metal enables the manufacturing procedure and process to be simple, the magnesium alloy and copper to be combined reliably, the productivity to be high, the cost to be low, and heat radiators of any shapes to be manufactured, and achieves extremely good heat radiating performance.

Description

The 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 heat radiating metal preparation method, and its processing procedure and technology are simple when making that by this 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, has also realized good thermal diffusivity simultaneously.
[summary of the invention]
The purpose of this invention is to provide a kind of 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 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 placed required mould;
In the mode of casting the magnesium alloy of fusion is poured into and to make both combinations in the above-mentioned mould.
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, 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 heat radiating metal preparation method of the present invention.
[specific embodiment]
With reference to shown in Figure 2, a kind of 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 inserted in the mould and located, fixture in the mould is fixed this copper alloy base material, at this moment, in the mode of casting the magnesium alloy of fusion being poured in the above-mentioned mould is both combinations, wherein, the casting of present embodiment is under normal pressure the magnesium alloy of the fusion more than 600 ℃ to be poured in the mould, treat both to have obtained behind the curing molding radiator workpiece of moulding, the advantage of the mode of this casting is that manufacturing process is simple, requirement of strength to equipment and mold is not high, and cost is low;
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.
Manufacturing method of heat 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 the technology that adopts casting, 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 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 placed required mould;
In the mode of casting the magnesium alloy of fusion is poured into and to make both combinations in the above-mentioned mould.
2. 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. heat radiating metal preparation method as claimed in claim 1 is characterized in that, the mode of above-mentioned casting is for pouring into the magnesium alloy of the fusion more than 600 ℃ in the mould under normal pressure.
4. 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. heat radiating metal preparation method as claimed in claim 4 is characterized in that above-mentioned surface treatment is for changing into processing.
CN2009103113104A 2009-12-14 2009-12-14 Manufacturing method of heat radiating metal Pending CN102091773A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009103113104A CN102091773A (en) 2009-12-14 2009-12-14 Manufacturing method of heat radiating metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009103113104A CN102091773A (en) 2009-12-14 2009-12-14 Manufacturing method of heat radiating metal

Publications (1)

Publication Number Publication Date
CN102091773A true CN102091773A (en) 2011-06-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009103113104A Pending CN102091773A (en) 2009-12-14 2009-12-14 Manufacturing method of heat radiating metal

Country Status (1)

Country Link
CN (1) CN102091773A (en)

Cited By (2)

* 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
CN104519168A (en) * 2014-12-12 2015-04-15 镁联科技(芜湖)有限公司 Mobile phone radiating device and machining method thereof

Cited By (3)

* 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
CN104519168A (en) * 2014-12-12 2015-04-15 镁联科技(芜湖)有限公司 Mobile phone radiating device and machining method thereof
CN104519168B (en) * 2014-12-12 2018-03-23 佛山市南海鹰毅五金制品厂 Mobile phone heat abstractor and its processing method

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Application publication date: 20110615

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