CN104911398B - A kind of handset shell - Google Patents
A kind of handset shell Download PDFInfo
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- CN104911398B CN104911398B CN201510396415.XA CN201510396415A CN104911398B CN 104911398 B CN104911398 B CN 104911398B CN 201510396415 A CN201510396415 A CN 201510396415A CN 104911398 B CN104911398 B CN 104911398B
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Abstract
A kind of handset shell, by boss is arranged to handset shell, and the alloying component to boss and preparation method improve, the performances such as corrosion resistance, elastic modelling quantity and the intensity of this handset shell are greatly improved, meet the requirement for combination properties such as the intensity of housing and lightweights for the mobile phone.
Description
Technical field
The invention belongs to moving communicating field and alloy field, the titanium-aluminium alloy housing of more particularly to a kind of handset shell
Boss.
Background technology
At present, mobile phone, particularly can only be made using magnesium alloy, aluminium alloy or plastics more than the shell of mobile phone.But whether
The plastics of magnesium alloy, aluminium alloy or hard, its hardness and rigidity all less desirable so that user use process
In easily cause mobile phone bending, deformation situations such as.Have at present some mobile phones using inside mobile phone shell using boss by the way of,
But adopting rustless steel or common titanium-aluminium alloy boss, it is difficult to ensure that rigidity and lightening double requirements more.Also have one
A little technology adopt non-crystaline amorphous metal as boss, greatly improve holistic cost.Because user makes to mobile terminal device
Also increased with the requirement of performance and durability, the demand of three anti-mobile phones increases in a large number, but reaches it by Sealing Technology
The effect cost of waterproof and dustproof is also higher, if the corrosion resistance of housing or boss improves, can extend mobile communication eventually
End equipment service life in extreme circumstances, being therefore badly in need of inventing a kind of cost is not very high relatively, but can meet just again
The phone housing of the multiple requesting such as degree and lightening, corrosion resistance.
Content of the invention
It is an object of the invention to proposing a kind of handset shell.
Realize especially by following technological means：
A kind of handset shell, described handset shell includes shell and is arranged on boss on shell, described boss
For titanium alloy, each alloying element of described titanium alloy is by weight percentage：Al：9 ~ 11%, Nb：4 ~ 6%, Zr：0.6 ~ 2.2%,
Mo：2.2 ~ 3.6%, Fe：0.1 ~ 0.6%, Si：0.02 ~ 0.06%, Ce：0.02 ~ 0.05%, balance of Ti and inevitable impurity；
Described titanium-aluminium alloy carries out following heat treatment step after being cast as boss semi-finished product：
（1）Annealing：Boss semi-finished product after casting are inserted in resistance furnace, is heated to 760 ~ 830 DEG C, insulation
30 ~ 60min, then stove be as cold as room temperature；
（2）Timeliness：Boss semi-finished product after annealing are inserted in aging furnace, is heated to 310 ~ 330 DEG C, Ageing Treatment
After 5 ~ 6 hours, slow cooling is to room temperature；
（3）Deep cooling：Boss semi-finished product after Ageing Treatment are inserted deep cooling box and carries out subzero treatment, cryogenic temperature
For -90 ~ -160 DEG C, subzero treatment temperature retention time is 20 ~ 30min, and insulation recovers to room temperature after terminating；
（4）Homogenization：Boss semi-finished product after subzero treatment are inserted in resistance furnace, is heated to 120 ~ 180 DEG C, protect
Warm 25 ~ 35min, stove is cooled to room temperature；
（5）Process of refinement：Boss semi-finished product after Homogenization Treatments are carried out becoming more meticulous by milling angle operation and adds
Work, strengthened block finished product.
Preferably, the heating of described annealing is by the way of progressive solution, first boss semi-finished product are heated to 120
~ 150 DEG C, after insulation 5 ~ 10min, continue to be heated to 350 ~ 380 DEG C, be incubated 10 ~ 20min, then proceed to be heated to 760 ~ 830 DEG C
Annealing holding temperature.
Preferably, the outer cover body of described mobile phone is rigid plastics, aluminium alloy, magnesium alloy or titanium alloy, by shell originally
Body is affixed with boss, forms the phone housing of high intensity.
Effect of the invention is that：
1, by improving to the component content of titanium alloy, especially with the addition of Ce and control its content so that closing
Golden microstructure is uniformly tiny, thus intensity is greatly improved, makes its corrosion resistant by the content of each component of rational modification
Corrosion and elastic modelling quantity have obtained significantly improving；
2, by the improvement of titanium alloy heat treatment mode so that the microstructure of titanium alloy creates change（This heat i.e.
Processing method implies specific structure）, thus its fracture strength, yield strength are obtained for and are significantly improved；
3, by increased subzero treatment in heat treatment process, and by subzero treatment and the process such as annealing, timeliness
Order cooperates, and the improvement of Deep Cryogenic Treatment is so that the elastic modelling quantity of boss, yield strength etc. have all obtained greatly
The improvement of amplitude；
4, by the heating process of annealing is divided into triphasic heating so that the microstructure of titanium-aluminium alloy is more uniform
Stablize so that its elastic modelling quantity is improved.
Specific embodiment
Embodiment 1
A kind of handset shell, the shell setting boss of described mobile phone, described boss is titanium-aluminium alloy, and described titanium aluminum closes
The each alloying element of gold is by weight percentage：Al：9.9%, Nb：5.2%, Zr：2.1%, Mo：2.9%, Fe：0.5%, Si：
0.05%, Ce：0.03%, balance of Ti and inevitable impurity.
By measurement, the elastic modelling quantity of boss is 42GPa, and yield strength is 571MPa, and percentage elongation is 13%.
Embodiment 2
A kind of handset shell, the shell setting boss of described mobile phone, described boss is titanium-aluminium alloy, and described titanium aluminum closes
The each alloying element of gold is by weight percentage：Al：10.2%, Nb：5.0%, Zr：1.1%, Mo：3.0%, Fe：0.3%, Si：
0.05%, Ce：0.030%, balance of Ti and inevitable impurity, described titanium-aluminium alloy adopts vacuum consumable electrode arc furnace melting,
Casting by the way of hot investment casting, carries out following heat treatment step after being cast as boss semi-finished product：（1）Annealing：
Boss semi-finished product after casting are inserted in resistance furnace, is heated to 800 DEG C, be incubated 51min, then stove is as cold as room
Temperature；（2）Timeliness：Boss semi-finished product after annealing are inserted in aging furnace, is heated to 320 DEG C, Ageing Treatment 5.2 hours
Afterwards, slow cooling is to room temperature；（3）Deep cooling：Boss semi-finished product after Ageing Treatment are inserted deep cooling box and carries out subzero treatment, deep cooling
Temperature is -110 DEG C, and subzero treatment temperature retention time is 25min, and insulation recovers to room temperature after terminating；（4）Homogenization：By deep cooling
Boss semi-finished product after process are inserted in resistance furnace, are heated to 160 DEG C, are incubated 28min, and stove is cooled to room temperature；（5）Become more meticulous
Process：Boss semi-finished product after Homogenization Treatments are carried out fine design by milling angle operation, strengthened block finished product.
By boss and Al-alloy casing welding fabrication are obtained high-strength shell.
By measurement, the elastic modelling quantity of boss is 69.2GPa, and yield strength is 786MPa, and percentage elongation is 19%, section
Shrinkage factor is 56%.
Embodiment 3
By the titanium-aluminium alloy of component described in embodiment 1 by the way of hot investment casting casting, be cast as boss half
Carry out following heat treatment step after finished product：（1）Annealing：Boss semi-finished product after casting are inserted in resistance furnace,
It is heated to 130 DEG C, after insulation 6min, continue to be heated to 360 DEG C, be incubated 12min, then proceed to be heated to 810 DEG C, insulation
50min, then stove be as cold as room temperature；（2）Timeliness：Boss semi-finished product after annealing are inserted in aging furnace, is heated to 320
DEG C, after 5.5 hours, slow cooling is to room temperature for Ageing Treatment；（3）Deep cooling：Boss semi-finished product after Ageing Treatment are inserted deep cooling
Case carries out subzero treatment, and cryogenic temperature is -120 DEG C, and subzero treatment temperature retention time is 22min, and insulation recovers to room after terminating
Temperature；（4）Homogenization：Boss semi-finished product after subzero treatment are inserted in resistance furnace, are heated to 160 DEG C, be incubated 28min,
Stove is cooled to room temperature；（5）Process of refinement：Boss semi-finished product after Homogenization Treatments are become more meticulous by milling angle operation
Processing, strengthened block finished product.（6）By step（5）The boss finished product obtaining is by way of molten moulding and rigid plastic shell
Body carries out affixed, obtains the whole shell of mobile phone.
By measurement, the elastic modelling quantity of boss is 69GPa, and fracture strength is 925MPa, and percentage elongation is 19%, and section is received
Shrinkage is 51.2%.
Claims (2)
1. a kind of handset shell is it is characterised in that described handset shell includes shell and is arranged on boss on shell, institute
Stating boss is titanium alloy, and each alloying element of described titanium alloy is by weight percentage：Al：10.2 ~ 11%, Nb：4 ~ 5.0%,
Zr：0.6 ~ 1.1%, Mo：2.2 ~ 3.0%, Fe：0.1 ~ 0.3%, Si：0.02 ~ 0.05%, Ce：0.02 ~ 0.03%, balance of Ti and not
Evitable impurity；
Described titanium alloy carries out following heat treatment step after being cast as boss semi-finished product：
（1）Annealing：Boss semi-finished product after casting are inserted in resistance furnace, are heated to 760 ~ 830 DEG C, insulation 30 ~
60min, then stove be as cold as room temperature；
（2）Timeliness：Boss semi-finished product after annealing are inserted in aging furnace, is heated to 310 ~ 330 DEG C, Ageing Treatment 5 ~ 6
After hour, slow cooling is to room temperature；
（3）Deep cooling：Boss semi-finished product after Ageing Treatment are inserted deep cooling box and carries out subzero treatment, cryogenic temperature is -90
~ -110 DEG C, subzero treatment temperature retention time is 20 ~ 30min, and insulation recovers to room temperature after terminating；
（4）Homogenization：Boss semi-finished product after subzero treatment are inserted in resistance furnace, is heated to 120 ~ 180 DEG C, be incubated 25
~ 35min, stove is cooled to room temperature；
（5）Process of refinement：Boss semi-finished product after Homogenization Treatments are carried out fine design by milling angle operation, obtains
To boss finished product；
Boss semi-finished product, by the way of progressive solution, are heated to 120 ~ 150 DEG C by the heating of described annealing first, insulation 5 ~
After 10min, continue to be heated to 350 ~ 380 DEG C, be incubated 10 ~ 20min, then proceed to be heated to 760 ~ 830 DEG C of annealing insulation temperature
Degree.
2. handset shell according to claim 1 is it is characterised in that the outer cover body of described mobile phone is rigid plastics, aluminum
Alloy, magnesium alloy or titanium alloy, outer cover body is affixed with boss, form the phone housing of high intensity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396415.XA CN104911398B (en) | 2015-07-08 | 2015-07-08 | A kind of handset shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396415.XA CN104911398B (en) | 2015-07-08 | 2015-07-08 | A kind of handset shell |
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| Publication Number | Publication Date |
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| CN104911398A CN104911398A (en) | 2015-09-16 |
| CN104911398B true CN104911398B (en) | 2017-03-01 |
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| CN201510396415.XA Expired - Fee Related CN104911398B (en) | 2015-07-08 | 2015-07-08 | A kind of handset shell |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105238963B (en) * | 2015-10-26 | 2017-05-31 | 东莞华程金属科技有限公司 | A kind of aluminium alloy handset shell and preparation method thereof |
| CN105555089A (en) * | 2015-12-25 | 2016-05-04 | 深圳市卓怡恒通电脑科技有限公司 | Fabrication method of metal housing |
| CN107613070A (en) * | 2017-09-21 | 2018-01-19 | 宝鸡圭彬光电设备有限公司 | A kind of Multifunctional titanium aluminium alloy mobile phone shell |
| CN112538597A (en) * | 2020-10-19 | 2021-03-23 | 东莞长盈精密技术有限公司 | Aluminum alloy shell and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001348635A (en) * | 2000-06-05 | 2001-12-18 | Nikkin Material:Kk | Titanium alloy excellent in cold workability and work hardening |
| CN103240575B (en) * | 2013-05-14 | 2015-06-10 | 西安北方光电科技防务有限公司 | Method for improving sheet annular titanium alloy gear part machining precision |
| CN104745870B (en) * | 2015-04-14 | 2016-09-07 | 陕西爱骨医疗股份有限公司 | A kind of joint prosthesis |
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Effective date of registration: 20170123 Address after: 100102 Beijing city Chaoyang District Raycom Wangjing center B block 2502 Applicant after: Beijing palm dimension Polytron Technologies Inc Address before: 015000 the Inner Mongolia Autonomous Region, Bayannaoer Linhe District unity Road No. 36, building 2-6-2, No. 32 Applicant before: Guo Ce |
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