CN207736479U - A kind of mold suitable for tape casting mobile phone battery cover - Google Patents
A kind of mold suitable for tape casting mobile phone battery cover Download PDFInfo
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- CN207736479U CN207736479U CN201721709354.9U CN201721709354U CN207736479U CN 207736479 U CN207736479 U CN 207736479U CN 201721709354 U CN201721709354 U CN 201721709354U CN 207736479 U CN207736479 U CN 207736479U
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- diaphragm
- diversion division
- edge forming
- face
- mobile phone
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Abstract
The utility model discloses a kind of mold suitable for tape casting mobile phone battery cover, including former, former is equipped with central boss and edge forming face, and edge forming face is equipped with diaphragm positioning region, and positioning action is played for tape casting diaphragm dispersion during warm isostatic pressed；Edge forming is additionally provided with diversion division on face, one end of diversion division is connected with the fillet of central boss, the other end extends outwardly, so that diaphragm extra at the fillet in edge forming face when warm isostatic pressed is dispersed on the convex ribs or groove of diversion division, the design of diversion division and diaphragm positioning region, increase the contact area of diaphragm and mold, there is diaphragm cracking or fold in four fillets for effectively preventing former during formed product, to effectively increase the qualification rate of product, the allowance prepared by the utility model is few, 3D ceramic mobile phone rear shells stable and reliable for performance, material cost and rear end processing cost is greatly saved, the application requirement of field of mobile phones can be met, carry out large-scale mass production.
Description
Technical field
The utility model is related to ceramic material 3D layered manufacturing technical fields, and in particular to one kind being suitable for tape casting hand
The mold of machine rear shell.
Background technology
As the arrival in 5G, 6G epoch can then be shielded if mobile phone industry continues to use metal shell due to electromagnetic signal
Seriously so as to cause signal fading badly；Plastic shell is since feel is poor, not wear-resisting, being easy to fade etc. is also gradually eliminated；Glass
Glass shell is due to the defects of intensity is low, hardness is low, toughness is low and feel is poor, really there is also great risk and not as mobile phone battery cover
It is qualitative.For metal, plastics, macromolecule and glass material, ceramic material has high intensity, high rigidity, anti-oxidant, feel
Good, especially zirconia ceramics has the excellent performances such as high tenacity so that ceramic mobile phone shell is increasingly becoming more and more disappear
The first choice of the person of expense.Wherein, moulding process is to prepare high-performance, the key link of high reliability ceramic mobile phone shell.Currently, 3D shapes
Shape ceramic molding is there are commonly dry-pressing formed, injection moulding and tape casting, Ceramic manufacturing prepared by dry pressuring forming process
Surplus is big, and ceramic hardness is big so that rear end processing cost is excessively high；Ceramics prepared by injection moulding easy to produce pin hole, stomata
The defects of and make ceramic performance it is poor；For tape casting by the uniform diaphragm of casting technique preparation structure, the thickness of casting films can
Control, micro-structure is uniform, can effectively reduce the inhomogeneities even being eliminated in dry-pressing formed or injection moulding, such as stomata, trachoma
Microdefect, tape casting prepare casting films, then the cell phone rear cover of 3D complicated shapes is prepared by 3D molding die laminations.However,
When 3D shapes are molded, tape casting diaphragm is usually subjected to warm isostatic pressed again after mold superimposed layer, in warm isostatic pressed, mould
Four angles of tool easy to produce cracking or buckling phenomena when squeezing, after dumping sintering in product due to there is extra diaphragm
All there may be micro-cracks in portion, and then lead to product failure.
Utility model content
The technical problems to be solved in the utility model is：To overcome insufficient or defect in the prior art, the utility model
There is provided a kind of mold suitable for tape casting mobile phone battery cover, wherein correspond on edge forming face and set at the fillet of central boss
Diaphragm positioning region, positioning action is played for the tape casting diaphragm during warm isostatic pressed is evenly dispersed, in addition, being led on edge forming face
The design in stream portion so that diaphragm extra at the fillet in edge forming face is dispersed in the convex ribs or groove of diversion division when warm isostatic pressed
On, the design of diversion division and diaphragm positioning region increases the contact area of diaphragm and mold, effectively prevents formed product jointly
It is corresponded on edge forming face in the process and occurs diaphragm cracking or fold at the fillet of central boss, to effectively increase the conjunction of product
Lattice rate can prepare the 3D ceramic mobile phone rear shells that allowance is few, stable and reliable for performance by the utility model.
The solution that the utility model solves its technical problem is：The utility model provides a kind of suitable for tape casting
The upper surface of the mold of mobile phone battery cover, including former, the rounded rectangle in section of the former, the former is equipped with central boss
With around the edge forming face of central boss, the rounded rectangle of projection of the central boss, the central boss and edge forming face
Difference in height be 0.8-3.5mm, the edge forming face corresponds to and is equipped with diaphragm positioning region at the fillet of central boss, and the diaphragm is determined
The difference in height in lifting face or recessed sedimentation face of the position portion for protrusion, diaphragm positioning region and edge forming face is 0.6-2.0mm, described
It is additionally provided with diversion division on edge forming face, the diversion division is convex ribs or groove, one end of the diversion division and the circle of central boss
Angle is connected, and the other end extends outwardly and connects diaphragm positioning region, and when the diversion division is convex ribs, diaphragm positioning region is the lift of protrusion
The face of liter, when the diversion division is groove, diaphragm positioning region is recessed sedimentation face.
As a further improvement of the above technical scheme, the width of the diversion division is 0.2-1.2mm.
As a further improvement of the above technical scheme, the thickness of the former is 5-20mm.
The utility model has the beneficial effects that：The utility model provides a kind of mould suitable for tape casting mobile phone battery cover
Tool, the edge forming face correspond to and are equipped with diaphragm positioning region at the fillet of central boss, and the diaphragm positioning region is the lifting of protrusion
Face or recessed sedimentation face play positioning action for the tape casting diaphragm during warm isostatic pressed is evenly dispersed；Further, since
Casting films under warm isostatic pressed are soft, have certain mobility, and pressure at this time is that equalization is transmitted to all directions, described
The diversion division for convex ribs or groove is additionally provided on edge forming face, one end of diversion division is connected with the fillet of central boss, the other end
Extend outwardly and connect diaphragm positioning region, diaphragm extra at the fillet in edge forming face is evenly dispersed when may make warm isostatic pressed
On the convex ribs or groove of diversion division.The design of diversion division and diaphragm positioning region increases the contact area of diaphragm and mold, altogether
It cracks or fold with occurring diaphragm at the fillet for effectively preventing correspond to during formed product central boss on edge forming face, from
And effectively increase the qualification rate of product.The utility model only needs one piece of former that molding mobile phone battery cover can be made, and passes through this
3D ceramic mobile phone rear shells stable and reliable for performance prepared by utility model, required raw material dosage is few and rear end allowance is few, connects
Material cost and rear end processing cost is greatly saved in near-net-shape, can meet the application requirement of field of mobile phones, carries out big
Scale is produced in batches.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.Obviously, described attached drawing is a part of the embodiment of the utility model, rather than complete
Portion's embodiment, those skilled in the art without creative efforts, can also be obtained according to these attached drawings it
His design scheme and attached drawing.
Fig. 1 is the mold stereogram of the utility model；
Fig. 2 is the vertical view of the utility model；
It is a) front view of the utility model in Fig. 3；
B) it is the left view of the utility model；
Reference numeral：1, central boss；2, edge forming face；201, diversion division；202, diaphragm positioning region.
Specific implementation mode
The technique effect of the design of the utility model, concrete structure and generation is carried out below with reference to embodiment and attached drawing
It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field
The other embodiment that art personnel are obtained without creative efforts belongs to the model of the utility model protection
It encloses.In addition, all connection/connection relations being previously mentioned in text, not singly refer to component and directly connect, and referring to can be according to specific reality
Situation is applied, by adding or reducing couple auxiliary, to form more preferably coupling structure.Each technology in the utility model creation
Feature, can be with combination of interactions under the premise of not conflicting conflict.
By the preparation process of the mobile phone battery cover obtained by the utility model, include the following steps：
(1) prepared by slurry：Yttria-stabilized zirconia powder is raw material, dispersant, binder, plastic agent is added, in ball
Ball mill mixing is uniform in grinding machine, obtains solid content height, good fluidity, finely dispersed slurry；
(2) tape casting：Slurry vacuum defoamation in step (1), tape casting in casting machine prepare high quality curtain coating
Film；
(3) mold design：Mold is designed according to the size and shape of final products；
(4) isostatic pressing：By tape casting diaphragm obtained by step (2) in the mold superimposed layer of step (3), laminated thickness can be
0.5-3.0mm, the rear film of lamination is put into together with mold in warm isostatic pressing machine together carries out isostatic pressed, obtains ceramic mobile phone rear shell
Biscuit；
(5) dumping：The organic components in biscuit are discharged in dumping in biscuit draft glue discharging furnace in step (4)；
(6) it is sintered：Biscuit in step (5), which is transferred in high temperature sintering furnace, to be sintered, and ceramic mobile phone rear shell sintered blank is obtained；
(7) it machines：By the sintered blank in step (6) by rear end CNC, grinding, polishing process, final ceramic manual is obtained
Machine rear shell.
Wherein, the utility model is the design of mould structure, and as shown in Figure 1-Figure 3, one kind being suitable for tape casting mobile phone
The upper surface of the mold of rear shell, including former, the rounded rectangle in section of the former, the former is equipped with 1 He of central boss
Around the edge forming face 2 of central boss 1, the rounded rectangle of projection of the central boss 1, the central boss 1 and edge forming
The difference in height in face 2 is 0.8-3.5mm, and the edge forming face 2, which corresponds to, is equipped with diaphragm positioning region 202, institute at the fillet of central boss 1
The lifting face or recessed sedimentation face that diaphragm positioning region 202 is protrusion are stated, is uniformly divided for the tape casting diaphragm during warm isostatic pressed
It dissipates and plays positioning action, diaphragm positioning region 202 and the difference in height in edge forming face 2 are 0.6-2.0mm, further, since in temperature etc.
Casting films under static pressure are soft, there is certain mobility, and pressure at this time to all directions be it is impartial transmit, the side at
It is additionally provided with diversion division 201 on type face 2, the diversion division 201 is convex ribs or groove, one end of the diversion division 201 and middle cardiac prominence
The fillet of platform 1 is connected, and the other end extends outwardly and connects diaphragm positioning region 202, the circle in edge forming face 2 when may make warm isostatic pressed
Extra diaphragm is dispersed on the convex ribs or groove of diversion division 201 at angle, when the diversion division 201 is convex ribs, diaphragm
Positioning region 202 is the lifting face of protrusion, and when the diversion division 201 is groove, diaphragm positioning region 202 is recessed sedimentation face, film
The design of piece positioning region 202 and diversion division 201, increases the contact area of diaphragm and mold, effectively prevent jointly product at
There is diaphragm cracking or fold in four fillets of former when carrying out warm isostatic pressing process during type, to effectively increase product
Qualification rate.
As further preferred embodiment, the width of the diversion division 201 is 0.2-1.2mm.
As further preferred embodiment, the thickness of the former is 5-20mm.
The better embodiment of the utility model is illustrated above, but the invention be not limited to it is described
Embodiment, those skilled in the art can also make various equivalent changes without departing from the spirit of the present invention
Type or replacement, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (3)
1. a kind of mold suitable for tape casting mobile phone battery cover, including former, it is characterised in that：The section of the former is in circle
The upper surface of angular moment shape, the former is equipped with central boss and the edge forming face around central boss, the throwing of the central boss
The difference in height in the rounded rectangle of shadow, the central boss and edge forming face is 0.8-3.5mm, cardiac prominence during the edge forming face corresponds to
Diaphragm positioning region is equipped at the fillet of platform, the diaphragm positioning region is the lifting face of protrusion or recessed sedimentation face, diaphragm positioning
The difference in height in portion and edge forming face is 0.6-2.0mm, is additionally provided with diversion division on the edge forming face, the diversion division be convex ribs or
Groove, one end of the diversion division are connected with the fillet of central boss, and the other end extends outwardly and connects diaphragm positioning region, described
When diversion division is convex ribs, diaphragm positioning region is the lifting face of protrusion, and when the diversion division is groove, diaphragm positioning region is recessed
Sedimentation face.
2. the mold according to claim 1 suitable for tape casting mobile phone battery cover, it is characterised in that：The diversion division
Width is 0.2-1.2mm.
3. the mold according to claim 1 suitable for tape casting mobile phone battery cover, it is characterised in that：The thickness of the former
Degree is 5-20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721709354.9U CN207736479U (en) | 2017-12-06 | 2017-12-06 | A kind of mold suitable for tape casting mobile phone battery cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721709354.9U CN207736479U (en) | 2017-12-06 | 2017-12-06 | A kind of mold suitable for tape casting mobile phone battery cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207736479U true CN207736479U (en) | 2018-08-17 |
Family
ID=63117443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721709354.9U Active CN207736479U (en) | 2017-12-06 | 2017-12-06 | A kind of mold suitable for tape casting mobile phone battery cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207736479U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108032409A (en) * | 2017-12-06 | 2018-05-15 | 广东百工新材料科技有限公司 | A kind of mould suitable for tape casting mobile phone battery cover |
| CN112028638A (en) * | 2020-07-31 | 2020-12-04 | 深圳陶陶科技有限公司 | Ceramic material and preparation method and application thereof |
-
2017
- 2017-12-06 CN CN201721709354.9U patent/CN207736479U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108032409A (en) * | 2017-12-06 | 2018-05-15 | 广东百工新材料科技有限公司 | A kind of mould suitable for tape casting mobile phone battery cover |
| CN112028638A (en) * | 2020-07-31 | 2020-12-04 | 深圳陶陶科技有限公司 | Ceramic material and preparation method and application thereof |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190827 Address after: 528200 Unit A, 7 Blocks, One Layer 103, Longsha New Light Source Industrial Base, Luocun, Shishan Town, Nanhai District, Foshan City, Guangdong Province Patentee after: FOSHAN HUAZHI NEW MATERIAL CO., LTD. Address before: 528225, Guangdong, Foshan Province Nanhai town lion Road East Road, No. 17, science and Technology Park, No. 4 factory building Patentee before: Guangdong new Mstar Technology Ltd |