CN102724839A - Manufacturing method for metal shell of electronic product - Google Patents
Manufacturing method for metal shell of electronic product Download PDFInfo
- Publication number
- CN102724839A CN102724839A CN2011100759992A CN201110075999A CN102724839A CN 102724839 A CN102724839 A CN 102724839A CN 2011100759992 A CN2011100759992 A CN 2011100759992A CN 201110075999 A CN201110075999 A CN 201110075999A CN 102724839 A CN102724839 A CN 102724839A
- Authority
- CN
- China
- Prior art keywords
- electronic product
- metal shell
- preparation
- treatment
- lubricated
- 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.)
- Granted
Links
Landscapes
- Forging (AREA)
Abstract
The invention provides a manufacturing method for a metal shell of an electronic product. The method comprises: (1) pretreatment, wherein metal base materials are pretreated to obtain metal workpieces; (2) rough forging treatment, wherein the metal workpieces are lubricated and then roughly forged to obtain rough embryos; (3) thinning, wherein the rough embryos are thinned to obtain semi-finished embryos; (4) heat treatment, wherein the semi-finished embryos are heat treated; (5) finish forging treatment, wherein products obtained from the step four are lubricated and then finish forged to obtain finished embryos; and (6) aging treatment, wherein the finished embryos undergo aging treatment. By adding the treatment process of thinning between rough forging and finish forging, the manufacturing method for the metal shell of the electronic product is advantageous in that the times of forging and pressing are reduced greatly, the production technological processes are simplified, and the production efficiency is improved.
Description
Technical field
The present invention relates to a kind of preparation method of electronic product metal shell.
Background technology
Along with the raising of the level of consumption, the consumer not only pays attention to its quality to the requirement of electronic product, and the texture and the sense of touch of its appearance surfaces are also more and more paid close attention to, and the electronic product with special texture has competitiveness very much on market.Metal shell can bring beyond challenge visual impact sense, has feel exquisiteness, wear-resisting, shatter-resistant, advantage such as anticorrosive simultaneously, and extremely the consumer praises highly all the time, represents the developing direction of high-end electronic product.
For complex structure, feature structure higher (like cylinder) and the metal shell of the thin electronic product of main body, generally adopt thicker raw material, form higher characteristic through forging and pressing.The raw material thickness that forges and presses this metal shell will reach 5 ㎜-8 ㎜ usually, for thin characteristic, all is at present to realize the requirement on the thickness through increasing the forging and pressing number of times.And through forging and pressing realize product thickness from thick to thin than big change, its difficulty is very big; And realize this transformation, generally need carry out 6-8 forging and pressing, this just makes that the flow process of this technology is loaded down with trivial details, and production efficiency reduces greatly.
Summary of the invention
The present invention forges and presses often for solving among the preparation method who has the electronic product metal shell now, loaded down with trivial details, the production efficiency low technical problem of flow process, and a kind of preparation method who forges and presses the electronic product metal shell that number of times is few, flow process is simple, production efficiency is high is provided.
A kind of preparation method of electronic product metal shell, it comprises the steps:
(1) preliminary treatment: metal base is carried out preliminary treatment, obtain metal works;
(2) rough forge is handled: metal works is lubricated processing, carries out rough forge then, obtain thick embryo;
(3) attenuate: thick embryo is carried out reduction processing, obtain half smart embryo;
(4) heat treatment: half-and-half smart embryo is heat-treated;
(5) finish forge is handled: step (4) products obtained therefrom is lubricated processing, carries out finish forge then, obtain smart embryo;
(6) Ageing Treatment: smart embryo is carried out Ageing Treatment.
The present invention is through adding the reduction processing operation between rough forge and finish forge, saved in the existing technology in order to reach the necessary step that repeatedly forges and presses of thickness requirement of thin characteristic, simplified the technological process of production greatly, and production efficiency is largely increased.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the present invention is solved, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
A kind of preparation method of electronic product metal shell, it comprises the steps:
(1) preliminary treatment: metal base is carried out preliminary treatment, obtain metal works;
(2) rough forge is handled: metal works is lubricated processing, carries out rough forge then, obtain thick embryo;
(3) attenuate: thick embryo is carried out reduction processing, obtain half smart embryo;
(4) heat treatment: half-and-half smart embryo is heat-treated;
(5) finish forge is handled: step (4) products obtained therefrom is lubricated processing, carries out finish forge then, obtain smart embryo;
(6) Ageing Treatment: smart embryo is carried out Ageing Treatment.
Preparation method according to electronic product metal shell provided by the invention; Lubricated in said step (2) and the step (5) can adopt liquid forging and pressing oil to be lubricated processing; Also can adopt other lubricating systems to be lubricated processing, be lubricated processing like the lubricating system that adopts epithelium to add saponification.The present invention preferably adopts liquid forging and pressing oil to be lubricated.
In order to improve lubricant effect, said liquid forging and pressing oil is preferably emollient component and the mixture that dilutes component.
Preferably, said emollient component comprises the exquisite mineral oil of 80-95.5wt%, the exquisite vegetable oil of 1.0-6.0wt%, the EP agent of 0.5-15wt%, 0-0.05wt% antifoam additive.
Preferably, the mass ratio with the dilution component of said emollient component is preferably: 1:4-1:9.
Preferably, said EP agent is one or more in modification lipid EP agent, synthesizing ester EP agent and the sulfuration EP agent.As known in those skilled in the art, said modification lipid EP agent can be chloro or bromo alkane, and said synthesizing ester EP agent can be sulfide aliphatic acid ester, and said sulfuration EP agent can be sulfurized fatty.
Preferably, said dilution component comprises the carrene of 6-10wt%, the n-hexane of 5-12wt%, the ethanol of 80-88wt%.
According to the preparation method of electronic product metal shell provided by the invention, the thick embryo after said reduction processing preferably adopts the computer numerical control (CNC) lathe to rough forge carries out partial trim, with the thickness of the thick embryo behind the minimizing rough forge.
The Forging Technology that should be noted that electronic product metal shell disclosed by the invention is applicable to the various metal materials that forge and press, like magnesium alloy materials, steel etc.Under the preferable case, adopt aluminum alloy materials.Use preparation method's the step of electronic product metal shell of other metal materials consistent with the preparation method's of the electronic product metal shell that uses aluminum alloy materials step, difference only is the technological parameter difference of annealing in process, heat treatment, Ageing Treatment.Here said technological parameter includes but not limited to corresponding temperature, temperature retention time and the type of cooling etc.And the technological parameter of these different metal materials is known to those skilled in the art, so the present invention only is elaborated with regard to aluminum alloy materials, other metal materials repeat no more.
According to the preparation method of electronic product metal shell provided by the invention, said preliminary treatment is that stamping-out is handled, and it is that metal base is processed predetermined size and dimension that said stamping-out is handled.Under the preferred situation, said preliminary treatment also comprises annealing in process, and said annealing in process is the intensity reduction with metal base, improves the plasticity of metal base, so that follow-up rough forge is handled.For aluminum alloy base material, described annealing in process is: at first metal base is annealed to 410 ~ 430 ℃, air cooling is to room temperature after being incubated 1 ~ 2h under this temperature.
According to the preparation method of electronic product metal shell provided by the invention, said heat treatment is preferably solution treatment, and for aluminium alloy, said solution treatment is: at 525 ~ 535 ℃ of insulation 2-3h, water-cooled is to room temperature then.
According to the preparation method of electronic product metal shell provided by the invention, said Ageing Treatment is the aftertreatment technology of solid solution, so that metal shell reaches the mechanical property of last requirement.For aluminium alloy, said Ageing Treatment is: at 170 ~ 180 ℃ of insulation 7 ~ 8h, stove is chilled to room temperature then.
Preparation method according to electronic product metal shell provided by the present invention; In order to make the demand of the compound consumer of electronic product metal shell to outward appearance; After said Ageing Treatment, can also carry out subsequent treatment, like the refine of computer numerical control (CNC) lathe, mechanical polishing, anodized etc. to metal shell.Adopt the computer numerical control (CNC) lathe to carry out refine, the fine structure of metal shell is revised, to reach the accurate dimension of metal shell requirement; Adopt mechanical polishing can make metal shell reach the effect of Gao Guang; Can protect metal shell through anodic oxidation.
The present invention is through adding the reduction processing operation between rough forge and finish forge, saved in the existing technology in order to reach the necessary step that repeatedly forges and presses of thickness requirement of thin characteristic, simplified the technological process of production greatly, and production efficiency is largely increased.
In addition, metal need be lubricated processing before forging and pressing, if its lubricated adopts epithelium to add the lubricating system of saponification; Promptly handle at surface of the work absorption one deck solid lubricant layer, thereby produce lubrication, for the workpiece of external appearance characteristic more complicated through epithelium processing and saponification; In the forging and pressing process; These solid lubricant layers are easy to adhere to, pile up at the dead angle of workpiece and edge, are easy to wearing and tearing are caused on the angle and the limit of mould, influence follow-up forging and pressing precision.
To above-mentioned situation; Lubricated of the present invention preferably adopts liquid forging and pressing oil to be lubricated processing, because the dilution component of having added highly volatile in this liquid state forging and pressing oil, when forging and pressing; The dilution component volatilization falls; Liquid forging and pressing oil discharges emollient component, forms the layer of even film on the surface of workpiece, plays lubrication.This film can not adhere to, pile up at the dead angle of workpiece and edge, has effectively protected the characteristics such as angle and limit of mould, has reduced the wearing and tearing of mould.
Through specific embodiment the present invention is described in further detail below.
Embodiment 1
What present embodiment adopted is that thickness is 6063 aluminium alloys of 5 ㎜.
Above-mentioned aluminium alloy is annealed to 420 ℃ of insulation 1h, the aluminium alloy after the annealing is processed the workpiece of predetermined size and dimension.
Evenly smear the oily A of volatile liquid forging and pressing on the surface of workpiece, to be lubricated; Then will pass through lubricated workpiece adopts hydraulic press to forge and press out basic overall size and local feature, the shape coarse-blank.
Adopt the computer numerical control (CNC) lathe that thick embryo is carried out reduction processing then, attenuate size to interior thickness is 1.8 ㎜.
Under 530 ℃ of temperature, the thick embryo after the reduction processing is carried out solution treatment, Water Quenching is to room temperature behind the insulation 3h.
Evenly smear the oily A of volatile liquid forging and pressing on the surface of the thick embryo that passes through solution treatment, to be lubricated, adopt hydraulic press to carry out finish forge then, to forge into electronic product casing, interior thickness is 1.6 ㎜.
At 175 ℃ of insulation 8h, carry out Ageing Treatment, so that the hardness of electronic product casing reaches 76HB-85HB.
Adopt the computer numerical control (CNC) lathe to carry out refine then; Adopt cotton dolly to carry out mechanical polishing again, polishing time is 20s; Adopt the sulfuric acid electrolyte of 180g/L to carry out anodic oxidation at last, oxidation voltage is 15V, and 20 ℃ of tank liquor temperatures, oxidization time are 30min, and the painted time is 20min, and the sealing of hole time is 10min.
Wherein, the oily A of liquid forging and pressing is the mixture of emollient component and dilution component, and emollient component with the mass ratio of dilution component is: 1:4; Wherein emollient component comprises the exquisite mineral oil of 85wt%; The exquisite vegetable oil of 4wt%, the EP agent of 10.99wt%, 0.01wt% antifoam additive; Said dilution component comprises the carrene of 6wt%, the n-hexane of 9wt%, the ethanol of 85wt%.
Embodiment 2
What present embodiment adopted is that thickness is 6063 aluminium alloys of 5 ㎜.
Above-mentioned aluminium alloy is annealed to 420 ℃ of insulation 1h, the aluminium alloy after the annealing is processed the workpiece of predetermined size and dimension.
Evenly smear the oily B of volatile liquid forging and pressing on the surface of workpiece, to be lubricated; Then will pass through lubricated workpiece adopts hydraulic press to forge and press out basic overall size and local feature, the shape coarse-blank.
Adopt the computer numerical control (CNC) lathe that thick embryo is carried out reduction processing then, attenuate size to interior thickness is 1.8 ㎜.
Under 530 ℃ of temperature, the thick embryo after the reduction processing is carried out solution treatment, Water Quenching is to room temperature behind the insulation 3h.
Evenly smear the oily B of volatile liquid forging and pressing on the surface of the thick embryo that passes through solution treatment, to be lubricated, adopt hydraulic press to carry out finish forge then, to forge into electronic product casing, interior thickness is 1.6 ㎜.
At 175 ℃ of insulation 8h, carry out Ageing Treatment, so that the hardness of electronic product casing reaches 76HB-85HB.
Adopt the computer numerical control (CNC) lathe to carry out refine then; Adopt cotton dolly to carry out mechanical polishing again, polishing time is 20s; Adopt the sulfuric acid electrolyte of 180g/L to carry out anodic oxidation at last, oxidation voltage is 15V, and 20 ℃ of tank liquor temperatures, oxidization time are 30min, and the painted time is 20min, and the sealing of hole time is 10min.
Wherein, the oily B of liquid forging and pressing is the mixture of emollient component and dilution component, and emollient component with the mass ratio of dilution component is: 1:5; Wherein emollient component comprises the exquisite mineral oil of 90wt%; The exquisite vegetable oil of 5wt%, the EP agent of 4.98wt%, 0.02wt% antifoam additive; Said dilution component comprises the carrene of 8wt%, the n-hexane of 10wt%, the ethanol of 82wt%.
Embodiment 3
What present embodiment adopted is that thickness is 6063 aluminium alloys of 5 ㎜.
Above-mentioned aluminium alloy is annealed to 420 ℃ of insulation 1h, the aluminium alloy after the annealing is processed the workpiece of predetermined size and dimension.
Evenly smear the oily C of volatile liquid forging and pressing on the surface of workpiece, to be lubricated; Then will pass through lubricated workpiece adopts hydraulic press to forge and press out basic overall size and local feature, the shape coarse-blank.
Adopt the computer numerical control (CNC) lathe that thick embryo is carried out reduction processing then, attenuate size to interior thickness is 1.8 ㎜.
Under 530 ℃ of temperature, the thick embryo after the reduction processing is carried out solution treatment, Water Quenching is to room temperature behind the insulation 3h.
Evenly smear the oily C of volatile liquid forging and pressing on the surface of the thick embryo that passes through solution treatment, to be lubricated, adopt hydraulic press to carry out finish forge then, to forge into electronic product casing, interior thickness is 1.6 ㎜.
At 175 ℃ of insulation 8h, carry out Ageing Treatment, so that the hardness of electronic product casing reaches 76HB-85HB.
Adopt the computer numerical control (CNC) lathe to carry out refine then; Adopt cotton dolly to carry out mechanical polishing again, polishing time is 20s; Adopt the sulfuric acid electrolyte of 180g/L to carry out anodic oxidation at last, oxidation voltage is 15V, and 20 ℃ of tank liquor temperatures, oxidization time are 30min, and the painted time is 20min, and the sealing of hole time is 10min.
Wherein, the oily C of liquid forging and pressing is the mixture of emollient component and dilution component, and emollient component with the mass ratio of dilution component is: 1:8; Wherein emollient component comprises the exquisite mineral oil of 95wt%; The exquisite vegetable oil of 2wt%, the EP agent of 2.97wt%, 0.03wt% antifoam additive; Said dilution component comprises the carrene of 5wt%, the n-hexane of 7wt%, the ethanol of 88wt%.
Embodiment 4
What present embodiment adopted is that thickness is 6063 aluminium alloys of 5 ㎜.
Above-mentioned aluminium alloy is annealed to 420 ℃ of insulation 1h, the aluminium alloy after the annealing is processed the workpiece of predetermined size and dimension.
The lubricating system that adopts epithelium to add saponification is lubricated; Then will pass through lubricated workpiece adopts hydraulic press to forge and press out basic overall size and local feature, the shape coarse-blank.
Adopt the computer numerical control (CNC) lathe that thick embryo is carried out reduction processing then, attenuate size to interior thickness is 1.8 ㎜.
Under 530 ℃ of temperature, the thick embryo after the reduction processing is carried out solution treatment, Water Quenching is to room temperature behind the insulation 3h.
The lubricating system that adopts epithelium to add saponification is lubricated the thick embryo through solution treatment, adopts hydraulic press to carry out finish forge then, and to forge into electronic product casing, interior thickness is 1.6 ㎜.
At 175 ℃ of insulation 8h, carry out Ageing Treatment, so that the hardness of electronic product casing reaches 76HB-85HB.
Adopt the computer numerical control (CNC) lathe to carry out refine then; Adopt cotton dolly to carry out mechanical polishing again, polishing time is 20s; Adopt the sulfuric acid electrolyte of 180g/L to carry out anodic oxidation at last, oxidation voltage is 15V, and 20 ℃ of tank liquor temperatures, oxidization time are 30min, and the painted time is 20min, and the sealing of hole time is 10min.
Comparative Examples 1
What present embodiment adopted is that thickness is 6063 aluminium alloys of 5 ㎜.
Above-mentioned aluminium alloy is annealed to 420 ℃ of insulation 1h, the aluminium alloy after the annealing is processed the workpiece of predetermined size and dimension.
The lubricating system that adopts epithelium to add saponification is lubricated.Then will pass through lubricated workpiece and adopt hydraulic press to carry out 8 forging and pressing, be 2.0 ㎜ with ironed size to interior thickness.
Under 530 ℃ of ℃ of temperature, carry out solution treatment, carry out cooling processing to room temperature with cold water behind the insulation 3h.
To add saponification lubricated to carry out epithelium through the workpiece of solution treatment, adopts hydraulic press to carry out finish forge workpiece then, and to forge into electronic product casing, interior thickness is 1.6 ㎜.
At 175 ℃ of insulation 8h, carry out Ageing Treatment, so that the hardness of electronic product casing reaches 76HB-85HB.
Adopt the computer numerical control (CNC) lathe to carry out refine then; Adopt cotton dolly to carry out mechanical polishing again, polishing time is 20s; Adopt the sulfuric acid electrolyte of 180g/L to carry out anodic oxidation at last, oxidation voltage is 15V, and 20 ℃ of tank liquor temperatures, oxidization time are 30min, and the painted time is 20min, and the sealing of hole time is 10min.
Performance test:
Outward appearance: the die wear situation of aluminum alloy casing outward appearance and test of many times in the forging and pressing process that detects by an unaided eye, the result sees table 1.
Table 1
| ? | Product appearance and forging and pressing number of times |
| Embodiment 1 | No accumulation, noresidue, the brighter nothing impression of product appearance, die wear is little, 2 forging and pressing |
| Embodiment 2 | No accumulation, noresidue, the brighter nothing impression of product appearance, die wear is little, 2 forging and pressing |
| Embodiment 3 | No accumulation, noresidue, the brighter nothing impression of product appearance, die wear is little, 2 forging and pressing |
| Embodiment 4 | Accumulation is arranged, residue is arranged, product appearance is not good, die wear is big, 2 forging and pressing |
| Comparative Examples 1 | Accumulation is arranged, residue is arranged, product appearance is not good, die wear is big, 8 forging and pressing |
Can find out that from above table 1 because local feature is had relatively high expectations, raw thickness is bigger, and the main body requirement is thinner, in Comparative Examples 1, reaches requirement through the mode that increases forging and pressing number of times (8 times).Because forging and pressing often, flow process is loaded down with trivial details, production efficiency is low.And among the embodiments of the invention 1-4, between rough forge and finish forge, increase the reduction processing operation, thus can just can reach thickness requirement through twice forging and pressing, saved the forging and pressing number of times that increases in order to reduce thickness of workpiece.Therefore forging and pressing number of times of the present invention is less, flow process is simple, production efficiency is high.
In addition, can find out from above table 1 that the lubricating system that Comparative Examples adopts epithelium to add saponification is lubricated, lubricant adheres to, piles up at the dead angle and the edge of workpiece, and the angle and the limit of mould are caused than galling; Adopt the preparation method of electronic product metal shell of the present invention, lubricant does not adhere to, piles up at the dead angle and the edge of workpiece, and product appearance is good, and die wear is little.
Claims (10)
1. the preparation method of an electronic product metal shell, it comprises the steps:
(1) preliminary treatment: metal base is carried out preliminary treatment, obtain metal works;
(2) rough forge is handled: metal works is lubricated processing, carries out rough forge then, obtain thick embryo;
(3) attenuate: thick embryo is carried out reduction processing, obtain half smart embryo;
(4) heat treatment: half-and-half smart embryo is heat-treated;
(5) finish forge is handled: step (4) products obtained therefrom is lubricated processing, carries out finish forge then, obtain smart embryo;
(6) Ageing Treatment: smart embryo is carried out Ageing Treatment.
2. the preparation method of electronic product metal shell as claimed in claim 1 is characterized in that, the lubricated in said step (2) and the step (5) is uses liquid forging and pressing oil to be lubricated.
3. the preparation method of electronic product metal shell as claimed in claim 2 is characterized in that, said liquid forging and pressing oil comprises emollient component and dilution component;
Said emollient component comprises the exquisite mineral oil of 80-95.5wt%, the exquisite vegetable oil of 1.0-6.0wt%, the EP agent of 0.5-15wt%, 0-0.05wt% antifoam additive;
Said dilution component comprises the carrene of 6-10wt%, the n-hexane of 5-12wt%, the ethanol of 80-88wt%.
4. the preparation method of electronic product metal shell as claimed in claim 3 is characterized in that, said emollient component with the mass ratio of dilution component is: 1:4-1:9.
5. the preparation method of electronic product metal shell as claimed in claim 3 is characterized in that, said EP agent be in modification lipid EP agent, synthesizing ester EP agent and the sulfuration EP agent one or more.
6. the preparation method of electronic product metal shell as claimed in claim 1 is characterized in that, said preliminary treatment comprises annealing in process and stamping-out processing.
7. the preparation method of electronic product metal shell as claimed in claim 6 is characterized in that, said metal base is an aluminum alloy base material.
8. the preparation method of electronic product metal shell as claimed in claim 7 is characterized in that, said annealing in process is: at 410 ~ 430 ℃ of insulation 1 ~ 2h, air cooling to room temperature or stove are chilled to room temperature then.
9. the preparation method of electronic product metal shell as claimed in claim 7 is characterized in that, said heat treatment is solution treatment, and said solution treatment is: at 525 ~ 535 ℃ of insulation 2-3h, water-cooled is to room temperature then.
10. the preparation method of electronic product metal shell as claimed in claim 7 is characterized in that, said Ageing Treatment is: at 170 ~ 180 ℃ of insulation 7 ~ 8h, air cooling is to room temperature then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110075999.2A CN102724839B (en) | 2011-03-29 | 2011-03-29 | A kind of preparation method of metal shell of electronic product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110075999.2A CN102724839B (en) | 2011-03-29 | 2011-03-29 | A kind of preparation method of metal shell of electronic product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102724839A true CN102724839A (en) | 2012-10-10 |
| CN102724839B CN102724839B (en) | 2016-03-30 |
Family
ID=46950432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110075999.2A Active CN102724839B (en) | 2011-03-29 | 2011-03-29 | A kind of preparation method of metal shell of electronic product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102724839B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105642805A (en) * | 2015-12-31 | 2016-06-08 | 广东长盈精密技术有限公司 | Manufacturing method for shell |
| CN105983816A (en) * | 2015-01-27 | 2016-10-05 | 佛山市南海中宇渔具有限公司 | Integral forming method for reel throwing line |
| CN106028724A (en) * | 2016-05-31 | 2016-10-12 | 维沃移动通信有限公司 | Processing method for back cover, back cover and electronic equipment |
| CN106222589A (en) * | 2016-07-19 | 2016-12-14 | 广东长盈精密技术有限公司 | The forging and stamping of aluminium process technique |
| CN107018965A (en) * | 2016-02-02 | 2017-08-08 | 慈溪市锐进渔具有限公司 | A kind of production method of integrated fish-wire reel curved block |
| CN107738074A (en) * | 2017-10-24 | 2018-02-27 | 广东欧珀移动通信有限公司 | A kind of method for producing shell, housing and mobile terminal |
| CN110586826A (en) * | 2019-09-12 | 2019-12-20 | 广东长盈精密技术有限公司 | Preparation method of aluminum alloy shell |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1311065A (en) * | 2000-03-01 | 2001-09-05 | 石川岛播磨重工业株式会社 | Equipment for prodn. of hot rolled steel plate, and device and method for thickness forging therefor |
| CN1326724A (en) * | 2000-12-28 | 2001-12-19 | 南京宝色钛业有限公司 | precise die forging method for producing titanium alloy artificial joint |
-
2011
- 2011-03-29 CN CN201110075999.2A patent/CN102724839B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1311065A (en) * | 2000-03-01 | 2001-09-05 | 石川岛播磨重工业株式会社 | Equipment for prodn. of hot rolled steel plate, and device and method for thickness forging therefor |
| CN1326724A (en) * | 2000-12-28 | 2001-12-19 | 南京宝色钛业有限公司 | precise die forging method for producing titanium alloy artificial joint |
Non-Patent Citations (1)
| Title |
|---|
| 林钢等: "《铝合金应用手册》", 31 January 2006, article "铝及铝合金的生产技术和热处理", pages: 89 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105983816A (en) * | 2015-01-27 | 2016-10-05 | 佛山市南海中宇渔具有限公司 | Integral forming method for reel throwing line |
| CN105642805A (en) * | 2015-12-31 | 2016-06-08 | 广东长盈精密技术有限公司 | Manufacturing method for shell |
| CN105642805B (en) * | 2015-12-31 | 2018-01-12 | 广东长盈精密技术有限公司 | The preparation method of housing |
| CN107018965A (en) * | 2016-02-02 | 2017-08-08 | 慈溪市锐进渔具有限公司 | A kind of production method of integrated fish-wire reel curved block |
| CN106028724A (en) * | 2016-05-31 | 2016-10-12 | 维沃移动通信有限公司 | Processing method for back cover, back cover and electronic equipment |
| CN106028724B (en) * | 2016-05-31 | 2019-08-20 | 维沃移动通信有限公司 | A kind of processing method of rear cover, rear cover and electronic equipment |
| CN106222589A (en) * | 2016-07-19 | 2016-12-14 | 广东长盈精密技术有限公司 | The forging and stamping of aluminium process technique |
| CN107738074A (en) * | 2017-10-24 | 2018-02-27 | 广东欧珀移动通信有限公司 | A kind of method for producing shell, housing and mobile terminal |
| CN110586826A (en) * | 2019-09-12 | 2019-12-20 | 广东长盈精密技术有限公司 | Preparation method of aluminum alloy shell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102724839B (en) | 2016-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102724839B (en) | A kind of preparation method of metal shell of electronic product | |
| CN102688966B (en) | Cold forging method and metal housing processing method | |
| CN103286522B (en) | A kind of preparation method of electronic product Al-alloy casing | |
| CN103421587B (en) | Magnesium and magnesium alloy sheet strip cold rolling lubricating agent | |
| CN105908110B (en) | A kind of method for reducing high strength alumin ium alloy complexity forging part residual stress | |
| CN108220692B (en) | Preparation method of high-strength aluminum alloy plate for thinning and drawing | |
| CN103695125B (en) | Lubricating agent for gold cold die forging of low-alloy steel and carbon steel plates | |
| CN104862551B (en) | Al Mg Cu Zn line aluminium alloys and aluminum alloy plate materials preparation method | |
| CN102284835B (en) | Method for producing 10.9-class vehicle bolt of above M12 | |
| CN105598351A (en) | Manufacturing method of aluminum alloy shell | |
| CN103170798A (en) | Machining method of high-quality large-diameter thin-wall metal barrel body | |
| CN104338777A (en) | Production method of cold-drawn precision seamless steel pipes | |
| CN105945537A (en) | Forging technology for idle gear for automobile engine | |
| US9803264B2 (en) | High-plasticity free-cutting zinc alloy | |
| CN102430676A (en) | Cold forging method for aluminum alloy structural member | |
| CN101278067A (en) | Method of press quenching aluminum alloy 6020 | |
| Mori et al. | Cold deep drawing of commercial magnesium alloy sheets | |
| CN107629844A (en) | A kind of aluminum alloy plate materials water-soluble flush force feed | |
| CN106086619A (en) | A kind of automobile gearbox final gear liquid forging process | |
| CN102728772A (en) | Method for forging large ship crank shaft | |
| CN107096806A (en) | A kind of processing method of high-strength accurate steel pipe | |
| CN106399818A (en) | Liquid-state die forging process for cam shaft gear for automobile engine | |
| CN105970129A (en) | Low-stress manufacturing process for eliminating anisotropism of 2A12 aluminum alloy forging | |
| CN102989951A (en) | Forging method of automotive camshaft | |
| DE102012014258A1 (en) | Method for manufacturing engine carrier from steel for body construction in automobile industry, involves carrying out shaping of sheet metal blank to component in temperature range using stamping process, and ending shaping of blank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |