CN102215660A - Magnesium alloy electronic radiator - Google Patents
Magnesium alloy electronic radiator Download PDFInfo
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- CN102215660A CN102215660A CN2010102479775A CN201010247977A CN102215660A CN 102215660 A CN102215660 A CN 102215660A CN 2010102479775 A CN2010102479775 A CN 2010102479775A CN 201010247977 A CN201010247977 A CN 201010247977A CN 102215660 A CN102215660 A CN 102215660A
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- magnesium alloy
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- extruding
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Abstract
The invention discloses a magnesium alloy electronic radiator which is widely applied to electronic products in the fields of the aerospace industry, the military industry and traffic. The electronic radiator is made of a magnesium alloy material by a novel extruding and casting processing technology. Because the magnesium alloy material is applied to the electronic radiator, heat radiated by an electronic element can be well absorbed, internal heat is effectively radiated outside, and a heating phenomenon is avoided. The electronic radiator has the advantages of high radiating property, high specific strength, high specific stiffness, damping shock absorption, heat conduction, dimensional stability, high cutting performance and the like, and can be widely applied to alternating current/direct current, voltage stabilization switch, communication, purification, alternating frequency and inversion power supplies and the like, and the fields of televisions, sound equipment, power amplifier circuits, automation control instruments, light-emitting diode (LED) lamps and other electronic products.
Description
Technical field: the present invention relates to a kind of a kind of magnesium alloy electronic radiator that aerospace industry, military industry field and field of traffic electronic product use that is widely used in.
Background technology: in recent years because the electronic technology fast development, the requirement of product on usefulness and power constantly promotes, requirement aspect heat radiation also improves constantly relatively, particularly the high integration of electronic equipment and components and parts and microminiaturization, miniaturization make its overall power density and caloric value increase significantly, and serious threat is to useful life, stability and the fail safe of electronic equipment operate as normal.Power consumption and heat dissipation problem become does not day by day allow the problem of avoiding.In general, some electronic devices and components, the electric energy that consumes during their work has quite a few and is converted into heat, allow the working temperature of each parts of electrical equipment remain in the reasonable range, except the temperature that guarantees the electrical work environment in reasonable range, also must carry out radiating treatment, especially the electronic component that the electrical equipment the inside is used to it, guarantee the work that it is stable, more necessary it is dispelled the heat effectively.The material that at present general industry is used for radiator is mostly based on aluminium alloy or copper alloy, and copper alloy density is big, complex process, and price is higher, adopts lighter aluminium alloy to make so radiator now.And the specific heat of aluminium alloy is lower, causes aluminum alloy heat sink self-heating in the use, can not well absorb a large amount of heats and heat is taken away, and long-term the use caused the electric appliance casing surface heat, thereby do not reach good heat-radiation effect.And, make the radiator cost promote relatively because the price of aluminium and copper sharp rises in recent years.
Summary of the invention: the objective of the invention is to overcome the drawback that former radiator exists, provide a kind of employing magnesium alloy materials to prepare the electronic radiation device, good heat dissipation effect, damping shock absorption, a kind of magnesium alloy electronic radiator that dimensionally stable and machinability are good.The objective of the invention is to be achieved through the following technical solutions: described employing extruding, the new processing technology of die casting are prepared into the electronic radiation device with magnesium alloy materials.
The invention has the beneficial effects as follows:.Because the conductive coefficient of magnesium alloy is a little less than aluminium alloy, but specific heat is 1.13 times of aluminium alloy greater than water, can well absorb the heat that electronic component distributes, self the phenomenon of generating heat can not occur yet.Dispel the heat on the electric equipment products and adopt magnesium alloy materials to be applied in, can be effectively the heat of inside be dispersed into the outside.Have that thermal diffusivity is good, specific strength, specific stiffness height, dimensionally stable, casting character and cutting ability are superior, damping shock absorption is good, high electromagnetic interference barrier, recyclable usefulness again, anti-impression is good, easily spraying, the magnesium alloy of same volume is lighter by 1/3 than aluminium alloy, so cheap.Can be widely used in various field of power supplies such as alternating current-direct current, stabilized switch, communication, purification, friendship frequency, inversion.And television set, stereo set, power amplifier, instrument for automatic control, LED lamp, electronic product field.
Embodiment: described employing extruding, the new processing technology of die casting are prepared into the electronic radiation device with magnesium alloy materials.
The extruding of described new processing technology, the parameter of die casting are: extruding magnesium ingot temperature is 250-400 ℃, 200-250 ℃ of recipient temperature, and muzzle velocity 2-8 rice/minute, extruding force 150-210 MPa.
The extruding of described new processing technology, the parameter of die casting are: extruding magnesium ingot temperature is 275 ℃, 225 ℃ of recipient temperature, 5 meters/minute of muzzle velocities, extruding force 180 MPas.
Operation principle of the present invention is: magnesium is the lightest metal in practical metal, and the proportion of magnesium approximately is 2/3 of aluminium, is 1/4 of iron.It is the lightest metal in the practical metal, and has high strength, high rigidity.Therefore, under the situation that does not reduce parts intensity, can alleviate the parts weight of aluminium or iron.Produce in inside on the shell such as computer, television set, mobile phone and projecting apparatus of higher temperature and the thermal component and use magnesium alloy can accomplish the effect of atresia heat radiation, so magnesium alloy is optimal selection as electronic component radiator.
Experimental result of the present invention is: the present invention is applied on the electronic radiation device can reach good effect, through the Ministry of Industry and Information Technology's electronics the 5th research institute's laboratory test results is:
1, prepares magnesium alloy AZ31B, AZ91D (with cover) and three in aluminium alloy 6063 (with cover) alloy cup, in three cups, pour equal volume into, the water of uniform temp, use the variation of water temperature in the mercurial thermometer measuring cup, and respectively to magnesium alloy AZ91D, AZ31B, 6,063 three kinds of materials of aluminium alloy are measured contrast to the heat dispersion of hot water.From the data that record as can be seen, three kinds of materials are in the regular hour, begin cooling from identical temperature, its cooling extent magnesium alloy is slightly larger than aluminium alloy 6063, wherein the cooling extent of magnesium alloy AZ31B exceeds 2 ℃ than aluminium alloy, and the cooling extent of magnesium alloy AZ91D exceeds 3 ℃ than aluminium alloy 6063.The cooling extent size order is: AZ91D＞AZ31B＞6063; Heat dispersion is: AZ91D＞AZ31B＞6063.
Table 1: magnesium alloy and aluminium alloy are to the experimental result of hot water heat dispersion contrast
2, for proving that further the magnesium alloy heat dispersion is higher than aluminium alloy, we put into water-bath simultaneously with magnesium alloy (with cover) and aluminium alloy (with cover) cup again, the temperature of water-bath is set at 60 ℃, temperature reaches design temperature behind the 10min, treat to take out and use portable temperature measurer that the outside wall temperature of cup is measured in three cups simultaneously after temperature reaches, and the heat dispersion of aluminium alloy 6063, magnesium alloy AZ91D, three kinds of materials self of AZ31B is contrasted.As can be seen, lower the temperature after 16 minutes from the data that record, the cooling extent of magnesium alloy AZ91D, AZ31B is the same with the cooling extent of aluminium alloy 6063, but magnesium alloy AZ91D, AZ31B cooling extent are slightly larger than aluminium alloy 6063 in the intermediate temperature drop process.In addition, three kinds of materials are from the appearance temperature of beginning, can be similar to the size that draws thermal capacitance and be: AZ91D＞AZ31B＞6063.
Table 2: the experimental result of magnesium alloy and aluminium alloy self-radiating performance comparison
Claims (3)
1. a magnesium alloy electronic radiator is characterized in that adopting extruding, the new processing technology of die casting to be prepared into the electronic radiation device with magnesium alloy materials.
2. a kind of magnesium alloy electronic radiator according to claim 1, it is characterized in that the extruding of new processing technology, the parameter of die casting are: extruding magnesium ingot temperature is 250-400 ℃, 200-250 ℃ of recipient temperature, muzzle velocity 2-8 rice/minute, extruding force 150-210 MPa.
3. a kind of magnesium alloy electronic radiator according to claim 1 is characterized in that the extruding of new processing technology, the parameter of die casting are: extruding magnesium ingot temperature is 275 ℃, 225 ℃ of recipient temperature, 5 meters/minute of muzzle velocities, extruding force 180 MPas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102479775A CN102215660A (en) | 2010-08-03 | 2010-08-03 | Magnesium alloy electronic radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102479775A CN102215660A (en) | 2010-08-03 | 2010-08-03 | Magnesium alloy electronic radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102215660A true CN102215660A (en) | 2011-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102479775A Pending CN102215660A (en) | 2010-08-03 | 2010-08-03 | Magnesium alloy electronic radiator |
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| CN (1) | CN102215660A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401446A (en) * | 2002-05-20 | 2003-03-12 | 沈阳工业大学 | Magnesium alloy radiator and mfg. method thereof |
| US20050126766A1 (en) * | 2003-09-16 | 2005-06-16 | Koila,Inc. | Nanostructure augmentation of surfaces for enhanced thermal transfer with improved contact |
| CN101251356A (en) * | 2007-11-23 | 2008-08-27 | 吕文涛 | Magnesium-base alloy radiator and manufacture method thereof |
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2010
- 2010-08-03 CN CN2010102479775A patent/CN102215660A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401446A (en) * | 2002-05-20 | 2003-03-12 | 沈阳工业大学 | Magnesium alloy radiator and mfg. method thereof |
| US20050126766A1 (en) * | 2003-09-16 | 2005-06-16 | Koila,Inc. | Nanostructure augmentation of surfaces for enhanced thermal transfer with improved contact |
| CN101251356A (en) * | 2007-11-23 | 2008-08-27 | 吕文涛 | Magnesium-base alloy radiator and manufacture method thereof |
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Application publication date: 20111012 |