CN101413081A - Magnesium alloy die casting for electric products - Google Patents
Magnesium alloy die casting for electric products Download PDFInfo
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- CN101413081A CN101413081A CNA2007101514835A CN200710151483A CN101413081A CN 101413081 A CN101413081 A CN 101413081A CN A2007101514835 A CNA2007101514835 A CN A2007101514835A CN 200710151483 A CN200710151483 A CN 200710151483A CN 101413081 A CN101413081 A CN 101413081A
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- Prior art keywords
- magnesium alloy
- equal
- die casting
- percent
- smaller
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- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 57
- 238000004512 die casting Methods 0.000 title claims abstract description 40
- 239000012535 impurity Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract description 8
- 239000011777 magnesium Substances 0.000 abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 abstract description 6
- 229910052749 magnesium Inorganic materials 0.000 abstract description 5
- 229910045601 alloy Inorganic materials 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 2
- 229910052748 manganese Inorganic materials 0.000 abstract 2
- 229910052759 nickel Inorganic materials 0.000 abstract 2
- 229910052725 zinc Inorganic materials 0.000 abstract 1
- 229910000838 Al alloy Inorganic materials 0.000 description 12
- 238000005266 casting Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 4
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 238000005275 alloying Methods 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention discloses a magnesium alloy die cast used for an electronic product so as to solve the problem of heavy weight and high cost of the electronic product. The magnesium alloy is cast by a magnesium die casting alloy ingot which comprises the following compositions in weight percentage: 8.50 to 9.50 percent of Al, 0.45 to 0.90 percent of Zn, 0.17 to 0.40 percent of Mn, less than or equal to 0.05 percent of Si, less than or equal to 0.004 percent of Fe, less than or equal to 0.015 percent of Cu, less than or equal to 0.001 percent of Ni, and 0.30 percent of total impurities; or 5.70 to 6.30 percent of Al, more than 0.15 percent of Mn, less than or equal to 0.20 percent of Si, less than or equal to 0.004 percent of Fe, less than or equal to 0.008 percent of Cu, less than or equal to 0.01 percent of Ni, and 0.03 percent of total impurities. The magnesium alloy die cast can be applied to various electronic products, such as television.
Description
Technical field
The present invention relates to a kind of magnesium alloy die casting, relate in particular to a kind of magnesium alloy die casting that is used for electronic product.
Background technology
At present, the various members that use in the electronic product mostly form as aluminium alloy compression casting, yet because aluminium alloy exists that weight is relatively large, cost is higher, occur problem such as stripped thread in the assembling process easily, the insider is striving to find novel material always and is replacing aluminium alloy.
Magnesium alloy is lighter weight in structural alloy, and is lighter by 1/3rd than aluminium alloy, and yield strength, unit elongation and aluminium alloy are suitable, have high specific tenacity and specific rigidity; And magnesium alloy has good corrosion resistance energy, capability of electromagnetic shielding, shielding property, can carry out high-accuracy mechanical processing; Fusing point is lower than aluminium alloy fusing point, and the die cast performance is good, and the I of die casting wall thickness reaches 0.5mm, and Mg alloy castings tensile strength and aluminum alloy casting are suitable, generally can reach 250MPa, reach as high as MPa more than 600.
Yet, although magnesium alloy is the popular domain of current metallic substance research,, magnesium alloy is mainly used in fields such as aerospace industry, military project, traffic at present, in the electronic product field application precedent is not arranged as yet.Though Chinese patent 200620114915.6 discloses the casing that indicating meters such as a kind of LCD TV with magnesium/aluminum alloy die casting, plasm TV and desktop indicating meter are used, its technical scheme is open to be the TV shell structure of material with the magnesium/aluminum alloy, but how do not provide casing structure makes, details such as the concrete Chemical Composition of magnesium/aluminum alloy, though and conventional diecast magnesium alloy such as its high-temperature creep resistances such as AS system and AE system are good, but its toughness and castibility are all lower, and are not suitable for the needs of electronic products such as televisor.
Summary of the invention
Technical problem to be solved by this invention provides a kind of magnesium alloy die casting that is used for electronic product, and lighter weight and cost are lower.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
This is used for the magnesium alloy die casting of electronic product, described magnesium alloy die casting is formed by the die casting in mould of diecast magnesium alloy ingot, the weight percent of each component is in the described diecast magnesium alloy ingot: Al:8.50-9.50, Zn:0.45-0.90, Mn:0.17-0.40, Si: smaller or equal to 0.05, Fe: smaller or equal to 0.004, Cu: smaller or equal to 0.015, Ni: smaller or equal to 0.001, total impurities: 0.30.
Optionally, the weight percent of each component also can be in the described diecast magnesium alloy ingot: Al:5.70-6.30, Mn: greater than 0.15, Si: smaller or equal to 0.20, Fe: smaller or equal to 0.004, Cu: smaller or equal to 0.008, Ni: smaller or equal to 0.01, total impurities: 0.03.
Optionally, the weight percent of each component also can be in the described diecast magnesium alloy ingot: Al:5.60-6.40, and Mn:0.26-0.50, Si: smaller or equal to 0.05, Fe: smaller or equal to 0.004, Cu: smaller or equal to 0.008, Ni: smaller or equal to 0.001.
Further, on described magnesium alloy die casting, be provided with fixed orifices.
In the described fixed orifices that is located on the magnesium alloy die casting internal thread is arranged.
Preferably, the internal thread in the described fixed orifices that is located on the magnesium alloy die casting adopts the thread forming tap processes to form.
Described electronic product is a televisor.
Adopt Mg alloy castings of the present invention, replace aluminum alloy casting and be applied on the electronic product, lighter weight not only, cost is lower, and has excellent corrosion resisting performance, capability of electromagnetic shielding, shielding property can carry out high-accuracy mechanical processing.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Embodiment
Core of the present invention is die casting magnesium to be used on the electronic products such as televisor, to alleviate the quality of product, reduces cost.
Below in conjunction with drawings and Examples to the present invention detailed explanation.
Figure 1 shows that the structural representation of embodiment of the invention flat television bracket.
Traditional flat television bracket adopts aluminium alloy compression casting to form.Such flat television bracket not only quality is heavier, and cost is higher.
Embodiment of the invention flat television bracket 1 is that diecast magnesium alloy ingot with the suitable trade mark is placed on die cast in the mould.Select in the present embodiment that the trade mark is the diecast magnesium alloy ingot of AZ91D in the table one for use, wherein the weight percent of each component is: Al:8.50-9.50, Zn:0.45-0.90, Mn:0.17-0.40, Si: smaller or equal to 0.05, Fe: smaller or equal to 0.004, Cu: smaller or equal to 0.015, Ni: smaller or equal to 0.001, total impurities: 0.30.
Table one
Certainly, embodiment of the invention flat television bracket, also can select the trade mark in the table one for use is that the diecast magnesium alloy ingot of AM60A or AM60B comes die cast.
The present invention is used for the magnesium alloy die casting of electronic product, and in the alloying element content of used magnesium alloy, the content of toughness element (AL) is higher, has castibility, extensibility and shock resistance preferably, the needs of electronic products such as suitable televisor.
Embodiment of the invention flat television bracket can be placed on die cast in the mould of offering according to the shrinking percentage of die casting magnesium spare with the diecast magnesium alloy ingot of the above-mentioned trade mark, and the flat television bracket of die cast is convenient to assembling like this.
In order to save the die sinking expense, with embodiment of the invention flat television bracket, also can make full use of existing die casting aluminium mould, with the diecast magnesium alloy ingot of the above-mentioned trade mark, be placed on die cast in the existing die casting aluminium mould.
Can save the die sinking expense of writing like this, but the flat television bracket of die cast can be subjected to the influence of diecast magnesium alloy shrinking percentage, can not be well and other assemblies assemble.
For the ease of mount, on described magnesium alloy die casting, promptly the flat television bracket of present embodiment is provided with fixed orifices 10, as shown in Figure 1.
In order to solve not more under the situation of mold exchange, still adopt the shrinking percentage problem in the die cast in the die casting aluminium mould, when the flat television bracket to present embodiment carries out the machining in later stage, the distance of suitably adjusting fixed orifices satisfies the positioning requirements of assembling, and is forbidden to cause the problem that can't assemble to avoid locating.
For ease of other assemblies being fixed, on the present embodiment flat television bracket, be provided with internal thread in the fixed orifices with screw.
Easy fastener squeezes out inwall to a certain degree stripped thread takes place when assembling owing to die casting magnesium spare, for the stability that guarantees product must be resolved assembly problem, adopt the thread forming tap machining internal thread in the present embodiment, thread forming tap its screw thread point after entering bottom outlet is clamp-oned in the machined material, material is squeezed the gap that flows to the screw tap crown, this has just formed the diameter of bore of screw thread, because distributing, the lines of material is not cut off, in the squeezing tapping process, thread surface has produced work hardening, so the intensity height that is threaded.In the course of processing of foundry goods, take the novel process of thread forming tap tapping, can reach the purpose that makes product in assembling process, be difficult for stripped thread.
Be to be the explanation that example is carried out with the flat television bracket above, Mg alloy castings of the present invention also can be used for the miscellaneous part of flat panel TV, as casing etc., also can be applicable to computer, STB, on other electronic products such as projector.
Select the magnesium alloy of the reasonable trade mark not only can satisfy the performance requriements of electronic products such as televisor, comparing cost with the aluminium diecast alloy of present employing can also save more than 10%, and adopt structural part that die casting magnesium makes with respect to original die casting aluminium structural part weight saving nearly 1/3, alleviated complete machine weight to a certain extent.
Claims (7)
1, a kind of magnesium alloy die casting that is used for electronic product, described magnesium alloy die casting is formed by the die casting in mould of diecast magnesium alloy ingot, it is characterized in that the weight percent of each component is in the described diecast magnesium alloy ingot: Al:8.50-9.50, Zn:0.45-0.90, Mn:0.17-0.40, Si: smaller or equal to 0.05, Fe: smaller or equal to 0.004, Cu: smaller or equal to 0.015, Ni: smaller or equal to 0.001, total impurities: 0.30.
2, a kind of magnesium alloy die casting that is used for electronic product, described magnesium alloy die casting is formed by the die casting in mould of diecast magnesium alloy ingot, it is characterized in that, the weight percent of each component is in the described diecast magnesium alloy ingot: Al:5.70-6.30, and Mn: greater than 0.15, Si: smaller or equal to 0.20, Fe: smaller or equal to 0.004, Cu: smaller or equal to 0.008, Ni: smaller or equal to 0.01, total impurities: 0.03.
3, a kind of magnesium alloy die casting that is used for electronic product, described magnesium alloy die casting is formed by the die casting in mould of diecast magnesium alloy ingot, it is characterized in that, the weight percent of each component is in the described diecast magnesium alloy ingot: Al:5.60-6.40, Mn:0.26-0.50, Si: smaller or equal to 0.05, Fe: smaller or equal to 0.004, Cu: smaller or equal to 0.008, Ni: smaller or equal to 0.001.
4, according to claim 1, the 2 or 3 described magnesium alloy die castings that are used for electronic product, it is characterized in that: on described magnesium alloy die casting, be provided with fixed orifices.
5, the magnesium alloy die casting that is used for electronic product according to claim 4 is characterized in that: in the described fixed orifices that is located on the magnesium alloy die casting internal thread is arranged.
6, the magnesium alloy die casting that is used for electronic product according to claim 5 is characterized in that: the internal thread in the described fixed orifices that is located on the magnesium alloy die casting adopts the thread forming tap processes to form.
7, according to claim 1, the 2 or 3 described magnesium alloy die castings that are used for electronic product, it is characterized in that: described electronic product is a televisor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101514835A CN101413081A (en) | 2007-10-19 | 2007-10-19 | Magnesium alloy die casting for electric products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101514835A CN101413081A (en) | 2007-10-19 | 2007-10-19 | Magnesium alloy die casting for electric products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101413081A true CN101413081A (en) | 2009-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101514835A Pending CN101413081A (en) | 2007-10-19 | 2007-10-19 | Magnesium alloy die casting for electric products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101413081A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294123A (en) * | 2013-11-22 | 2015-01-21 | 深圳市长盈精密技术股份有限公司 | Magnesium-aluminum alloy material |
| CN104651690A (en) * | 2014-10-28 | 2015-05-27 | 宁波吉利罗佑发动机零部件有限公司 | Magnesium-aluminum alloy material for planet carrier and die-casting formation manufacturing process for planet carrier from magnesium-aluminum alloy material |
| CN107523728A (en) * | 2016-06-20 | 2017-12-29 | 张家港市华舰五金工具有限公司 | A kind of magnesium alloy and preparation method thereof |
| CN108342629A (en) * | 2018-03-19 | 2018-07-31 | 菏泽高峰电机有限公司 | Magnesium alloy fan leaf |
| CN108644134A (en) * | 2018-07-16 | 2018-10-12 | 菏泽高峰电机有限公司 | A kind of stepless speed regulation air-foil fan |
| CN113891598A (en) * | 2021-10-25 | 2022-01-04 | 宁波勋辉电器有限公司 | Magnesium alloy display shell for vehicle and manufacturing method thereof |
-
2007
- 2007-10-19 CN CNA2007101514835A patent/CN101413081A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294123A (en) * | 2013-11-22 | 2015-01-21 | 深圳市长盈精密技术股份有限公司 | Magnesium-aluminum alloy material |
| CN104651690A (en) * | 2014-10-28 | 2015-05-27 | 宁波吉利罗佑发动机零部件有限公司 | Magnesium-aluminum alloy material for planet carrier and die-casting formation manufacturing process for planet carrier from magnesium-aluminum alloy material |
| CN107523728A (en) * | 2016-06-20 | 2017-12-29 | 张家港市华舰五金工具有限公司 | A kind of magnesium alloy and preparation method thereof |
| CN108342629A (en) * | 2018-03-19 | 2018-07-31 | 菏泽高峰电机有限公司 | Magnesium alloy fan leaf |
| CN108644134A (en) * | 2018-07-16 | 2018-10-12 | 菏泽高峰电机有限公司 | A kind of stepless speed regulation air-foil fan |
| CN113891598A (en) * | 2021-10-25 | 2022-01-04 | 宁波勋辉电器有限公司 | Magnesium alloy display shell for vehicle and manufacturing method thereof |
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| PB01 | Publication | ||
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Open date: 20090422 |