CN101692486A - Method for forming metal sheet and plastic combined box body - Google Patents
Method for forming metal sheet and plastic combined box body Download PDFInfo
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- CN101692486A CN101692486A CN200910164367A CN200910164367A CN101692486A CN 101692486 A CN101692486 A CN 101692486A CN 200910164367 A CN200910164367 A CN 200910164367A CN 200910164367 A CN200910164367 A CN 200910164367A CN 101692486 A CN101692486 A CN 101692486A
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- box body
- stainless steel
- plastic
- sheet metal
- forming method
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a method for forming a metal sheet and plastic combined box body, which is characterized by comprising the following steps: A, selecting a stainless steel sheet of which the thickness is between 0.1 to 0.3 millimeter and bending the stainless steel sheet to form the metal box body of which the whole plane is inwards convex to form an arc-shaped curved surface; and B, positioning the stainless steel box body in a cavity of a plastic mold of the same shape, injecting a plastic material to fill the mold cavity, and obtaining the stainless steel sheet and plastic combined box body after cooling. The method for forming the metal sheet and plastic combined box body can effectively compensate for the deformation caused by large plastic contraction and small metal sheet contraction and allows the planeness of the metal sheet and plastic combined box body to be controlled within 0.2 millimeter.
Description
Technical field
The present invention relates to the electronic device manufacturing technology field, be specifically related to a kind of forming method by the synthetic box body of sheet metal and plastic tie.
Background technology
The forming method of existing a kind of " sheet metal and plastic tie synthetic box body-polymer battery shell " is that smooth sheet metal is positioned at injection mo(u)lding in the die cavity, obtains the box body that combines of a sheet metal and plastics.The shortcoming of this way is, the sheet metal bending strength is poor, the rising-heat contracting-cold coefficient is very little, and plastics contraction distortion when injection moulding is cooled off is big, sheet metal will be subjected to the contraction of plastics and produce buckling deformation when both combined, polymer battery shell flatness has a strong impact on the assembling and the outward appearance of polymer battery shell about 1.2mm.
Existing another kind reduces the method for " box body-polymer battery shell that sheet metal and plastic tie are synthetic " distortion, then be that four edge breaks with sheet metal curve the box-like shape, and reinforcement is set, be placed into again that injection mo(u)lding obtains box body in the plastic pattern chamber, though the battery case bending resistance that this method is shaped has enhancing to a certain degree, but be not enough to overcome the convergent force of plastics, the flatness of polymer battery shell can only reach about 0.5--0.8mm, or the assembling of impact polymer battery case and outward appearance.
This shows that the manufacturing process and the technology of above-mentioned existing " sheet metal and plastic tie synthetic box body-polymer battery shell " are can not reach flatness less than the requirement of 0.2mm, suddenly treat further improvement.For the requirement less than 0.2mm of the flatness that reaches the polymer battery shell, relevant manufacturer actively seeks solution.Therefore, how to design the flatness that the new forming method of a cover controls the polymer battery shell and reach 0.2mm, just become one of current important research and development problem with interior requirement.
Summary of the invention
Technical problem to be solved by this invention is how a kind of forming method by the synthetic box body of sheet metal and plastic tie is provided, and this forming method is used to control the sheet metal distortion that plastic shrink causes makes box body be less than the requirement of 0.2mm flatness.
Technical problem proposed by the invention is to solve like this: a kind of forming method by the synthetic box body of sheet metal and plastic tie is provided, it is characterized in that, described forming method by the synthetic box body of sheet metal and plastic tie comprises the steps:
A, select thickness stainless steel substrates between 0.1mm-0.3mm, this stainless steel substrates is bent into the can body, and the whole plane that makes the stainless steel box body is to convex camber curved surface;
B, this stainless steel box body is navigated in the plastic mold cavity identical with its shape, injection of plastic material loading mould cavity obtains the box body of stainless steel substrates and plastics be combined into after the cooling.
According to a kind of forming method provided by the present invention, it is characterized in that by the synthetic box body of sheet metal and plastic tie: at the body of stainless steel box described in the steps A for formed by stainless steel substrates four Edge Bends or three Edge Bends.
According to a kind of forming method provided by the present invention, it is characterized in that by the synthetic box body of sheet metal and plastic tie: at the height of the protruding camber curved surface of the body of stainless steel box described in the steps A between 0.3mm-1mm.
According to a kind of forming method provided by the present invention, it is characterized in that: on X and Y two directions, make identical with the stainless steel box body or similar shape at the plastic mold cavity described in the step B by the synthetic box body of sheet metal and plastic tie.
According to a kind of forming method by the synthetic box body of sheet metal and plastic tie provided by the present invention, it is characterized in that: at the plastic material described in the step B is the PC plastics.
In sum, adopt the forming method by the synthetic box body of sheet metal and plastic tie provided by the present invention can effectively compensate because plastic shrink is big and sheet metal shrinks the little distortion that causes, the flatness of the feasible box body that is synthesized by sheet metal and plastic tie can be controlled in the 0.2mm.
Description of drawings
Fig. 1 is the flow chart by the forming method of the synthetic box body of sheet metal and plastic tie.
Embodiment
Below in conjunction with accompanying drawing embodiments of the present invention are described in detail.
Forming method by the synthetic box body of sheet metal and plastic tie provided by the present invention comprises the steps: A, selects thickness stainless steel substrates between 0.1mm-0.3mm, this stainless steel substrates is bent into the can body, and the whole plane that makes the stainless steel box body is to convex camber curved surface; B, this stainless steel box body is navigated in the plastic mold cavity identical with its shape, injection of plastic material loading mould cavity obtains the box body of stainless steel substrates and plastics be combined into after the cooling.
At the body of stainless steel box described in the steps A is formed by stainless steel substrates four Edge Bends or three Edge Bends; At the height of the protruding camber curved surface of the body of stainless steel box described in the steps A between 0.3mm-1mm.
On X and Y two directions, make identical with the stainless steel box body or similar shape at the plastic mold cavity described in the step B; Can adopt the plastic material of PC plastics or other kinds at the plastic material described in the step B.
Being example with the polymer battery shell below does more detailed description to the forming method by the synthetic box body of sheet metal and plastic tie provided by the present invention.
Embodiment 1:
Selecting thickness is the stainless steel substrates of 0.1mm, and four edge breaks of this stainless steel substrates are curved battery case can body, and the whole plane that makes battery case stainless steel box body is to convex camber curved surface, and the height of arc-shaped curved surface is 0.3mm; This battery case stainless steel box body is navigated in the plastic mold cavity identical with its shape, and plastic mold cavity is made the shape identical with the stainless steel box body on X and Y two directions; Inject PC plastics loading mould cavity, obtain the polymer battery shell of stainless steel substrates and plastics be combined into after the cooling.
Embodiment 2:
Selecting thickness is the stainless steel substrates of 0.3mm, and four edge breaks of this stainless steel substrates are curved battery case can body, and the whole plane that makes battery case stainless steel box body is to convex camber curved surface, and the height of arc-shaped curved surface is 1mm; This battery case stainless steel box body is navigated in the plastic mold cavity identical with its shape, and plastic mold cavity is made the shape identical with the stainless steel box body on X and Y two directions; Inject PC plastics loading mould cavity, obtain the polymer battery shell of stainless steel substrates and plastics be combined into after the cooling.
Embodiment 3:
Selecting thickness is the stainless steel substrates of 0.2mm, and four edge breaks of this stainless steel substrates are curved battery case can body, and the whole plane that makes battery case stainless steel box body is to convex camber curved surface, and the height of arc-shaped curved surface is 0.8mm; This battery case stainless steel box body is navigated in the plastic mold cavity identical with its shape, and plastic mold cavity is made the shape identical with the stainless steel box body on X and Y two directions; Inject PC plastics loading mould cavity, obtain the polymer battery shell of stainless steel substrates and plastics be combined into after the cooling.
The flatness of prepared polymer battery shell all can be controlled in the 0.2mm among above-mentioned 3 embodiment.
Claims (5)
1. the forming method by the synthetic box body of sheet metal and plastic tie is characterized in that, described forming method by the synthetic box body of sheet metal and plastic tie comprises the steps:
A, select thickness stainless steel substrates between 0.1mm-0.3mm, this stainless steel substrates is bent into the can body, and the whole plane that makes the stainless steel box body is to convex camber curved surface;
B, this stainless steel box body is navigated in the plastic mold cavity identical with its shape, injection of plastic material loading mould cavity obtains the box body of stainless steel substrates and plastics be combined into after the cooling.
2. the forming method by the synthetic box body of sheet metal and plastic tie according to claim 1 is characterized in that: at the body of stainless steel box described in the steps A for formed by stainless steel substrates four Edge Bends or three Edge Bends.
3. the forming method by the synthetic box body of sheet metal and plastic tie according to claim 1 is characterized in that: at the height of the protruding camber curved surface of the body of stainless steel box described in the steps A between 0.3mm-1mm.
4. the forming method by the synthetic box body of sheet metal and plastic tie according to claim 1 is characterized in that: make identical with the stainless steel box body or similar shape at the plastic mold cavity described in the step B on X and Y two directions.
5. the forming method by the synthetic box body of sheet metal and plastic tie according to claim 1, it is characterized in that: at the plastic material described in the step B is the PC plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101643676A CN101692486B (en) | 2009-09-07 | 2009-09-07 | Method for forming metal sheet and plastic combined box body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101643676A CN101692486B (en) | 2009-09-07 | 2009-09-07 | Method for forming metal sheet and plastic combined box body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101692486A true CN101692486A (en) | 2010-04-07 |
| CN101692486B CN101692486B (en) | 2011-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101643676A Active CN101692486B (en) | 2009-09-07 | 2009-09-07 | Method for forming metal sheet and plastic combined box body |
Country Status (1)
| Country | Link |
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| CN (1) | CN101692486B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427051A (en) * | 2012-05-18 | 2013-12-04 | 神讯电脑(昆山)有限公司 | Battery case for electronic device and manufacturing method thereof |
| CN105500602A (en) * | 2015-12-17 | 2016-04-20 | 河源市勇艺达科技有限公司 | Injection molding process of mobile phone shell |
| CN111605132A (en) * | 2020-06-23 | 2020-09-01 | 广东美的厨房电器制造有限公司 | Manufacturing method of appearance piece and appearance piece |
-
2009
- 2009-09-07 CN CN2009101643676A patent/CN101692486B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9065108B2 (en) | 2011-12-29 | 2015-06-23 | Getac Technology Corporation | Battery shell of electronic device and manufacturing method thereof |
| CN103427051A (en) * | 2012-05-18 | 2013-12-04 | 神讯电脑(昆山)有限公司 | Battery case for electronic device and manufacturing method thereof |
| CN105500602A (en) * | 2015-12-17 | 2016-04-20 | 河源市勇艺达科技有限公司 | Injection molding process of mobile phone shell |
| CN111605132A (en) * | 2020-06-23 | 2020-09-01 | 广东美的厨房电器制造有限公司 | Manufacturing method of appearance piece and appearance piece |
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| Publication number | Publication date |
|---|---|
| CN101692486B (en) | 2011-08-31 |
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