CN101365324A - Magnesium alloy composite heat radiating metal - Google Patents
Magnesium alloy composite heat radiating metal Download PDFInfo
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- CN101365324A CN101365324A CNA2007101432765A CN200710143276A CN101365324A CN 101365324 A CN101365324 A CN 101365324A CN A2007101432765 A CNA2007101432765 A CN A2007101432765A CN 200710143276 A CN200710143276 A CN 200710143276A CN 101365324 A CN101365324 A CN 101365324A
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Abstract
A compound type magnesium alloy radiating meal mainly comprises a radiating surface made of a magnesium alloy; a contact surface which is a high heat conducting metal made of one alloy from gold, platinum, silver, copper, and the like; and a fusion layer which is positioned between the radiating and the contact surface, and adopts an eutectic structure, wherein the radiating surface and the contact surface are in fusion and connection through high temperature pressing. Therefore, the contact surface made of the high heat conducting metal can quickly absorb a heating source, and the heating source is transmitted to the radiating surface made of the magnesium alloy through the fusion layer for quick radiation. A finished product is more compact for the pressure enables structural molecules to concentrate, and the surface can be convenient for electroplating processing.
Description
Technical field:
The present invention relates to the innovation of heat sink material, wherein finger is a kind of especially combines closely as one of them alloys such as gold, platinum, silver, copper with magnesium alloy and high-thermal conductive metal, gets its indivedual preferably physical characteristics and is combined into the fast also fast magnesium alloy composite heat radiating metal that dispels the heat of heat absorption.
Background technology:
The quality of radiator concerns useful life of electronic product, the radiator of early stage traditional type is made with aluminium extruded type mostly, its heat absorption is very limited with radiating effect, so being inconsistent electronic product of new generation, practicality do not use, industry is actively to develop the radiator made from composition metal for this reason, for example, TaiWan, China is announced patent No. 563846, it is a kind of combined heat radiating member, and it comprises: a heat conductor, and it contains one and connects hot plate, define one and connect hot side, for being cross-placed on the thermal source, and connecing in this and to be equipped with most conduction fins on hot plate, and a radiator, be surrounded on the respectively periphery of this conduction fin of this heat conductor, include the radiating fin of conduction fin and constitute one, and make the thermal conductance efficient of this heat conductor be higher than this radiator, and the radiating efficiency of this radiator is better than this heat conductor.
Multiple on the market existing combined heat radiating member, its outward appearance appearance is perhaps different separately, but the radiator that adopts up to present its inside is mostly with aluminium, its heat conductor then all is to select for use copper to make, and mainly be because of the copper metal is an excellent heat conductivity body but thermal diffusivity is slow relatively, and aluminum metal heat conduction is slow than copper, but thermal diffusivity is fast than copper relatively, based on this so copper aluminium is arranged in conjunction with material radiator product, but its product radiating effect that really can produce in fact, it also is not the most desirable reaching electromagnetic wave shielding.
In light metal magnesium alloy and aluminium alloy compare have that strength/weight ratio is good, rigidity is good, shock-resistant, wear-resisting, recyclable, advantage such as electromagnetic wave shielding is good, the magnesium metal is the new material that the just wide model research of nearly more than ten years is used, unlike aluminum metal centuries history is arranged, so in the past all the time industry because of its attribute is not all understood, not only difficult on the processing procedure, and the course of processing fears to produce burning or blast again, if, be almost impossibility so want merely to make magnesium combined heat radiating member with method with above-mentioned.Because the magnesium metal be the tool high risk metal easily with the oxygen reaction, under the molten soup state of high temperature, contact burning easily with oxygen, meet water simultaneously and can produce hydrogen, burning aggravated even explode.
Though have the people to attempt the radiating component made from magnesium alloy at present, but its manufacturing technology still shoots out moulding with die casting and semisolid mostly, magnesium mobile relatively poor makes the die casting processing procedure high more for the thin more Workpiece shaping difficulty of thickness, and the product fraction defective also promotes relatively; The problem points generation that for example has hot tearing, oxidation, flow liner, undercapacity and eject distortion, and the tightness deficiency causes influencing heat dissipation.
Summary of the invention:
Technical problem to be solved by this invention is: at above-mentioned the deficiencies in the prior art, provide a kind of and combine closely as one of them alloys such as gold, platinum, silver, copper, get its indivedual preferably physical characteristics and be combined into the also fast magnesium alloy composite heat radiating metal of the fast heat radiation of heat absorption with magnesium alloy and high-thermal conductive metal.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of magnesium alloy composite heat radiating metal, it comprises that mainly a radiating surface, is the contact-making surface of high-thermal conductive metal, also comprise a fused layer, described radiating surface is constituted with magnesium alloy, described contact-making surface is made of gold, platinum, silver, copper a kind of alloy wherein, has a deep layer thickness that is pressed into radiating surface through impact forging, should fuse stratum boundary between radiating surface and contact-making surface, be the eutectic structure that mixes and be right after for make both by high-temperature pressurizing.
The another kind of technical scheme that the present invention adopts is: a kind of magnesium alloy composite heat radiating metal, and it mainly comprises the contact-making surface that a radiating surface, is made for high-thermal conductive metal, also comprises one fused layer, described radiating surface is constituted with magnesium alloy; Described contact-making surface is made of gold, platinum, silver, copper a kind of alloy wherein, is close to integrator through prolonging pressure with radiating surface; Should fuse stratum boundary between radiating surface and contact-making surface, be the eutectic structure that mixes and be right after for make both by high-temperature pressurizing.
Another technical scheme of the present invention is: a kind of magnesium alloy composite heat radiating metal, it mainly comprises a radiating surface, an and contact-making surface of being made by high-thermal conductive metal, described radiating surface is constituted with magnesium alloy, described contact-making surface is made of copper alloy, makes contact-making surface and radiating surface be close to one with fixation kit.
By this, but with the contact-making surface fast Absorption pyrotoxin that high-thermal conductive metal was constituted, the radiating surface that the fused layer of warp reaches the magnesium alloy formation dispels the heat with quickening, and makes its manufactured goods poly-more tight because of pressure makes in the structural molecule, and processing can be conveniently electroplated on the surface.
The present invention is metal processing, the product that is forged comprises: materials of all kinds such as gold, silver, copper, aluminium, magnesium, at the magnesium alloy workpiece of after constantly testing, finding impact forging, then inner crystalline phase density changes after it is subjected to high pressure external force, it is also fast more than Al alloy parts to move back temp effect, be after its material compresses via external pressure, the resultant hot effect that passes and dispel the heat of the raising of crystalline phase tissue meeting closely that evenly reaches.
For further understanding constitution content of the present invention and other characteristics, lift than specific embodiment now, and the embodiment of conjunction with figs. is described in detail as follows described.
Description of drawings:
Fig. 1 is a stereo appearance figure of the present invention.
Fig. 2 is a profile of the present invention.
Fig. 3 is that the present invention's product to be processed are put the schematic diagram in mould.
Fig. 4 puts processing schematic diagram in mould for the present invention.
The processing schematic diagram that Fig. 5 makes with calendering for the present invention.
Fig. 6 is a manufacturing calcspar of the present invention.
Fig. 7 is the schematic diagram of the present invention with the compound mode combination.
Label declaration:
1 radiating surface, 2 contact-making surfaces
21 deep layer thickness, 3 fused layers
4 moulds, 41 heating systems
42 temperature sense control systems, 43 temperature management and control casees
5 Computer Simulations of 44 mechanical pressures
6 fixation kits
Embodiment:
As Fig. 1-shown in Figure 6, a kind of magnesium alloy composite heat radiating metal that the present invention is designed, it mainly comprises:
One radiating surface 1, it is constituted with magnesium alloy;
One contact-making surface 2 is a high-thermal conductive metal, its be selected from gold, platinum, silver, copper etc. wherein a kind of alloy constitute, and;
One fused layer 3, the boundary makes both be the eutectic structure that mixes and be right after by high-temperature pressurizing between radiating surface 1 and contact-making surface 2;
During enforcement, this composition metal manufacturing processing method can be used punching press, the forging and pressing mode as Fig. 3 and Fig. 4, or the calendering mode of Fig. 5 is reached, and as making the effective combination of radiating surface 1 and 2 two kinds of metals of contact-making surface or dashing or forge, according to its product structure and size difference, can obtain best Fabrication parameter with Computer Simulation 5 before producing, back adding in having temperature controlled mould 4, be pressed into.
As shown in Figure 6, this Computer Simulation 5, be commonly called as " mold flow analysis ", the die drawing that system designs in advance according to product-forming, and default metal stock figure, put to the computer archives, and input metal material characterisitic parameter and other empirical value, by the software performing program, analysis of metallic materials is the flow situation during moulding in mould 4, again according to the simulation analysis result, revise product or die modeling, can reach more than 95% through this its accuracy rate of Computer Simulation 5 modes, can save mould 4 die sinkings error cost, and shorten product and hand over the phase.
The temperature of mould 4 control when producing again, be in mould 4, to bury heating system 41 underground, add a sleeving temperature sense control system 42, input is temperature required in temperature management and control case 43, mould 4 temperature can be controlled in the temperature difference, it is that respectively ask for earlier magnesium alloy and copper alloy semi-finished product are heated to more than the uniform temperature, treat that magnesium alloy and copper alloy semi-finished product are softening, impose the mechanical pressure 44 that obtains by Computer Simulation 5 in advance together again and make its connecting shaping, wherein, if also can require difference with punching press or forging and pressing mode, after contact-making surface 2 is pressed into radiating surface 1, can produce a deep layer thickness 21, but its boundary be between 0.5～10mm according to goods.
In addition, the present invention also has an emphasis on when manufacturing, the magnesium metal has combustibility as is well known, its burning-point greatly about spending 600 more, so the present invention is right after the fused layer 3 of eutectic structure if the middle generation of two kinds of metal composite is mixed during fabrication, it can not be too high to the magnesium alloy heating-up temperature otherwise can produces danger, best approximately Jie between 200C °～350C °, copper alloy then makes heats above the magnesium alloy ignition temperature, best about 200C °～800C ° treats that magnesium alloy and copper alloy semi-finished product soften, when placing in the mould 4 the pressurized connecting shaping, the higher copper alloy of its temperature in being pressed into the lower magnesium alloy of temperature after, copper alloy also can carry out heat exchange to the magnesium metal again and heat indirectly, impel the magnesium alloy temperature more to promote, make two alloys more mix being the eutectic state and be right after one, but this result that heats sees through in advance effective Computer Simulation 5 to produce because also be, so can precisely control during fabrication, make its unlikely burning-point that exceeds magnesium forever, be free from all anxiety with the safety of guaranteeing to make in the production.
By this, make the magnesium alloy composite heat radiating metal of making, can come the fast Absorption pyrotoxin with the contact-making surface 2 that high-thermal conductive metal constituted, eutectic structure through fusing layer 3 reaches the radiating surface 1 of magnesium alloy formation to accelerate heat radiation, wherein, and various machining manufactures, again with forging and pressing goods heat dissipation the best, its metallic article is because of pressure extrusion, and it is more sturdy that it is organized, and thermal energy conduction and heat radiation are faster.And its manufactured goods because of pressure makes in the structural molecule poly-more closely be not afraid of bump water, so processing can be conveniently electroplated on the surface, can increase an electrodeposited coating (scheming not show) attractive in appearance with the enhancement product easily at radiating surface with traditional process means.
In addition, please join shown in Figure 7, composition metal of the present invention is made processing method, certainly also can adopt conventional fixed assembly 6 to make contact-making surface 2 and radiating surface 1 be close to one as rivet, (or figure such as screw, concavo-convex buckle do not show variety of way), its finished product is identical also can obtain the practical effect that heat absorption is fast and heat radiation is also fast.
The present invention is so long as there is the product of heat radiation demand can use, and it has following advantage:
The heat radiation of magnesium metal implement and low-heat persistence characteristic are for best heat radiation metal known at present, with height The copper metal combination of thermal conductivity forms the metal inside thermal convection current, heat radiation usefulness significantly, The compound golden radiator of tradition aluminum bronze is excellent.
Effective combination of the present invention can become the radiator of full blast, to strengthen the pyrotoxin product longevity Life and usefulness. And the magnesium metal super retrospective of tool not only, can forge and press the moulding complex product, the magnesium metal is again For light metal known at present, so also can make the product lightweight.
Forging and pressing goods tool high strength, more traditional die casting or crowded type goods are excellent, forging and pressing goods tissue is pricked Real, so its heat conduction and heat radiation usefulness can promote 20% above usefulness by more other kind of processing procedure product again.
Claims (10)
1. magnesium alloy composite heat radiating metal, it comprises that mainly a radiating surface, is the contact-making surface of high-thermal conductive metal, it is characterized in that: also comprise a fused layer, described radiating surface is constituted with magnesium alloy, described contact-making surface is made of gold, platinum, silver, copper a kind of alloy wherein, have a deep layer thickness that is pressed into radiating surface through impact forging, this fused stratum boundary is the eutectic structure that mixes and be right after for made both by high-temperature pressurizing between radiating surface and contact-making surface.
2. magnesium alloy composite heat radiating metal according to claim 1 is characterized in that: described deep layer thickness circle that is pressed into is between 0.5～10mm.
3. magnesium alloy composite heat radiating metal according to claim 1 is characterized in that: the best Fabrication parameter of described two metals with in advance as calculated the machine software emulation obtain with mold flow analysis, the back adds in having temperature controlled mould and is pressed into.
4. magnesium alloy composite heat radiating metal according to claim 1 is characterized in that: described radiating surface appearance has additional an electrodeposited coating.
5. magnesium alloy composite heat radiating metal, it mainly comprises the contact-making surface that a radiating surface, is made for high-thermal conductive metal, it is characterized in that: also comprise a fused layer, described radiating surface is constituted with magnesium alloy; Described contact-making surface is made of gold, platinum, silver, copper a kind of alloy wherein, is close to integrator through prolonging pressure with radiating surface; Should fuse stratum boundary between radiating surface and contact-making surface, be the eutectic structure that mixes and be right after for make both by high-temperature pressurizing.
6. magnesium alloy composite heat radiating metal according to claim 5 is characterized in that: the best Fabrication parameter of described two metals with in advance as calculated the machine software emulation obtain with mold flow analysis, the back adds in having temperature controlled mould and is pressed into.
7. magnesium alloy composite heat radiating metal according to claim 5, it is characterized in that: this heat radiating metal selects this magnesium alloy for use and copper alloy is compound makes, wherein the heating-up temperature of magnesium alloy is 200～350C °, and the heating-up temperature of this copper alloy is 200～800C °, and after the eutectic structure of its fused layer system is pressed into magnesium alloy by copper alloy, its capable again heat exchange is heated indirectly, both are mixed be right after one.
8. magnesium alloy composite heat radiating metal according to claim 5 is characterized in that: described radiating surface appearance has additional an electrodeposited coating.
9. magnesium alloy composite heat radiating metal, it mainly comprises a radiating surface, an and contact-making surface of being made by high-thermal conductive metal, it is characterized in that: described radiating surface is constituted with magnesium alloy, and described contact-making surface is made of copper alloy, makes contact-making surface and radiating surface be close to one with fixation kit.
10. magnesium alloy composite heat radiating metal according to claim 9 is characterized in that: described fixation kit is rivet, screw, concavo-convex buckle assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101432765A CN101365324B (en) | 2007-08-09 | 2007-08-09 | Magnesium alloy composite heat radiating metal |
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| CN2007101432765A CN101365324B (en) | 2007-08-09 | 2007-08-09 | Magnesium alloy composite heat radiating metal |
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| CN101365324A true CN101365324A (en) | 2009-02-11 |
| CN101365324B CN101365324B (en) | 2011-03-23 |
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| CN2007101432765A Expired - Fee Related CN101365324B (en) | 2007-08-09 | 2007-08-09 | Magnesium alloy composite heat radiating metal |
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Cited By (3)
| 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 |
| CN103225107A (en) * | 2013-04-03 | 2013-07-31 | 福建福晶科技股份有限公司 | Method for rapid growth of high-quality BBO crystal |
| CN103499077A (en) * | 2013-09-26 | 2014-01-08 | 广州光为照明科技有限公司 | Copper and aluminum composite LED lamp heat dissipation device and manufacturing method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1469219A (en) * | 2002-07-15 | 2004-01-21 | 鹏 简 | Heat conductor and its complex machining process |
| CN1466202A (en) * | 2002-12-03 | 2004-01-07 | 黄蕙仙 | Aluminium-copper combined heat sink and mfg. method thereof |
| CN2606391Y (en) * | 2003-02-28 | 2004-03-10 | 张嘉桦 | Assembled structure for radiating seat |
| CN100508172C (en) * | 2004-08-12 | 2009-07-01 | 财团法人工业技术研究院 | Joining device for fin type heat radiator and heat spreader |
| CN2916557Y (en) * | 2006-02-27 | 2007-06-27 | 陈新华 | Magnesium alloy and copper die-casting composite post-wing type convector |
-
2007
- 2007-08-09 CN CN2007101432765A patent/CN101365324B/en not_active Expired - Fee Related
Cited By (3)
| 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 |
| CN103225107A (en) * | 2013-04-03 | 2013-07-31 | 福建福晶科技股份有限公司 | Method for rapid growth of high-quality BBO crystal |
| CN103499077A (en) * | 2013-09-26 | 2014-01-08 | 广州光为照明科技有限公司 | Copper and aluminum composite LED lamp heat dissipation device and manufacturing method thereof |
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| CN101365324B (en) | 2011-03-23 |
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Owner name: GAO YINGHONG Free format text: FORMER OWNER: JINTONG TECHNICAL METAL CO., LTD. Effective date: 20101224 |
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Effective date of registration: 20101224 Address after: 4, Bei'an Road, 442 section, Annan, Tainan, Taiwan, China Applicant after: Gao Yinghong Address before: 000000 442, Bei'an Road, 4 section, Annan, Tainan, Taiwan, China Applicant before: Jintong Technical Metal Co., Ltd. |
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