CN111347816A - Metal structural member, electronic device, and method for manufacturing metal structural member - Google Patents
Metal structural member, electronic device, and method for manufacturing metal structural member Download PDFInfo
- Publication number
- CN111347816A CN111347816A CN201811574165.4A CN201811574165A CN111347816A CN 111347816 A CN111347816 A CN 111347816A CN 201811574165 A CN201811574165 A CN 201811574165A CN 111347816 A CN111347816 A CN 111347816A
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- layer
- ink
- metal substrate
- structural member
- metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C5/00—Processes for producing special ornamental bodies
- B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
- B44C5/0415—Ornamental plaques, e.g. decorative panels, decorative veneers containing metallic elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C3/00—Processes, not specifically provided for elsewhere, for producing ornamental structures
- B44C3/02—Superimposing layers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0279—Improving the user comfort or ergonomics
- H04M1/0283—Improving the user comfort or ergonomics for providing a decorative aspect, e.g. customization of casings, exchangeable faceplate
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Laminated Bodies (AREA)
Abstract
The present application relates to a metal structural member, an electronic device, and a method of manufacturing a metal structural member, the method of manufacturing a metal structural member including: step a, printing ink on a metal substrate to form a first ink layer; b, performing optical coating on one side of the ink layer, which is back to the metal substrate, to form an optical coating layer; c, carrying out UV transfer printing on one side of the optical coating layer, which is back to the first ink layer, so as to manufacture an optical texture layer; d, printing ink on one side of the optical texture layer, which is far away from the metal substrate, to form a second ink layer; and e, coating a hardening layer on one side of the second ink layer, which is back to the metal substrate. Through setting gradually first printing ink layer, optics coating film layer to carry out the UV rendition in one side on optics coating film layer, form optics texture layer, set gradually second printing ink layer and sclerosis layer on optics texture layer, make the metal structure surface have the meticulous texture of stereoeffect, the outward appearance is better.
Description
Technical Field
The present invention relates to an electronic device, and more particularly to a metal structural member, an electronic apparatus, and a method of manufacturing a metal structural member.
Background
When the structural parts of the existing electronic device such as a smart phone and the like are made of metal, such as a battery cover, the texture on the surface of the electronic device is mainly made by laser etching, printing and the like, the fineness is low, and the requirement is difficult to meet.
Disclosure of Invention
In a first aspect of the present application, an embodiment provides a method for manufacturing a metal structural member, so as to solve the technical problem of low fineness of the texture on the metal structural member.
A method of manufacturing a metallic structural member, comprising:
step a, printing ink on a metal substrate to form a first ink layer;
b, performing optical coating on one side of the ink layer, which is back to the metal substrate, to form an optical coating layer;
c, carrying out UV transfer printing on one side of the optical coating layer, which is back to the first ink layer, so as to manufacture an optical texture layer;
d, printing ink on one side of the optical texture layer, which is far away from the metal substrate, to form a second ink layer; and
and e, coating a hardening layer on one side of the second ink layer, which is opposite to the metal substrate.
According to the manufacturing method of the metal structural member, the first ink layer and the optical coating layer are sequentially arranged, UV transfer printing is carried out on one side of the optical coating layer to form the optical texture layer, the second ink layer and the hardening layer are sequentially arranged on the optical texture layer, so that the surface of the metal structural member has fine textures with three-dimensional effects, the metal structural member has a more exquisite appearance effect, and the hardening layer also endows the metal structural member with excellent performances of wear resistance, solvent resistance, heat resistance, special chemical resistance and the like.
In one embodiment, step a includes applying varnish on the surface of the metal substrate to form a varnish layer, and printing ink on the side of the varnish layer opposite to the metal substrate to form the first ink layer.
In one embodiment, the ink for forming the first ink layer includes pigment, binder, filler and adjuvant.
In one embodiment, the UV transfer includes UV embossing and UV photocuring.
In one embodiment, step b and step c include applying an OCA glue to a side of the optical coating layer opposite to the first ink layer to form an OCA glue layer.
In one embodiment, the hardened layer is a transparent protective paint.
In a second aspect of the present application, an embodiment provides a metal structural member to solve the above technical problem of low fineness of texture on the metal structural member.
The metal structural part comprises a metal substrate, wherein a first ink layer, an optical coating layer, an optical texture layer, a second ink layer and a hardening layer are sequentially arranged on the outer surface of the metal substrate.
Set gradually first printing ink layer, optical coating layer on above-mentioned metal structure to carry out the UV rendition in one side on optical coating layer, form optical texture layer, set gradually second printing ink layer and sclerosis layer on optical texture layer, make metal structure's surface have the meticulous texture of stereoeffect, have more exquisite outward appearance effect, the sclerosis layer still gives metal structure wear-resisting, resistant solvent, heat-resisting, the good performance of resistant special chemicals etc..
In one embodiment, an OCA glue layer is arranged between the optical coating layer and the optical texture layer.
In one embodiment, the hardened layer is a transparent protective paint.
In a third aspect of the present application, an embodiment provides an electronic device to solve the technical problem of low fineness of the texture on the metal structural member.
An electronic device comprises the metal structural part.
The first ink layer and the optical coating layer are sequentially arranged on the metal structural part of the electronic device, UV transfer printing is carried out on one side of the optical coating layer to form the optical texture layer, the second ink layer and the hardening layer are sequentially arranged on the optical texture layer to enable the surface of the metal structural part to have fine textures with three-dimensional effects, the fine textures are more exquisite in appearance effect, and the hardening layer enables the metal structural part to have excellent performances such as wear resistance, solvent resistance, heat resistance and special chemical resistance.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a perspective view of an electronic device according to an embodiment;
FIG. 2 is a front view of a metal structural component, such as a battery cover, of the electronic device of FIG. 1 in one embodiment;
FIG. 3 is a cross-sectional view of the metal structural member of FIG. 2 in one embodiment;
FIG. 4 is a cross-sectional view of the metal structural member of FIG. 2 in another embodiment;
fig. 5 is a flow chart of a method of fabricating the metal structure of fig. 2.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
As used herein, "terminal device" refers to a device capable of receiving and/or transmitting communication signals including, but not limited to, devices connected via any one or more of the following connections:
(1) via wireline connections, such as via Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), Digital cable, direct cable connections;
(2) via a Wireless interface means such as a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter.
A terminal device arranged to communicate over a wireless interface may be referred to as a "mobile terminal". Examples of mobile terminals include, but are not limited to, the following electronic devices:
(1) satellite or cellular telephones;
(2) personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities;
(3) radiotelephones, pagers, internet/intranet access, Web browsers, notebooks, calendars, Personal Digital Assistants (PDAs) equipped with Global Positioning System (GPS) receivers;
(4) conventional laptop and/or palmtop receivers;
(5) conventional laptop and/or palmtop radiotelephone transceivers, and the like.
Referring to fig. 1 and fig. 2, in an embodiment, the electronic device 10 is a mobile phone, the electronic device 10 includes a metal structure 100, a display screen 200 and a middle frame 300, and the metal structure 100 may be an internal component of the electronic device 10, and may be a battery cover. In the present application, the metal structure 100 is described by taking a battery cover as an example, the metal structure 100 is disposed opposite to the display screen 200, and the metal structure 100, the display screen 200 and the middle frame 300 together form an external structure of the electronic device 10.
As shown in fig. 2, in one embodiment, the metal structure 100 includes a metal substrate 110, and the metal substrate 110 is made of a metal material, preferably a stainless steel material. The outer surface of the metal substrate 110 is surface-treated to give the metal structure 100 a fine texture of a cubic effect, thereby achieving a more refined appearance effect. The outer surface of the metal substrate 110 may be understood as a surface of the metal substrate 110 facing away from the interior of the electronic device 10, and the inner surface of the metal substrate 110 opposite to the outer surface of the metal substrate 110 is also an inner surface of the metal structure 100. The surface treatment makes the appearance effect of the metal structural member 100 better, and the surface presents fine textures with a three-dimensional effect, so that the metal structural member is more beautiful and has higher appearance expressive force.
In one embodiment, the metal substrate 110 is a flat or 2.5D or 3D plate made of a metal material and has a thickness of 0.1-1.0 mm. The conventional electronic device 10 is developed toward a light weight and a thin thickness. The metal substrate 110 is made of stainless steel, which has a light texture, has a good effect of reducing the weight of the electronic device 10, and is not easily broken when falling. However, since the appearance expressive force of the metal structural member 100 made of stainless steel is not good, even if the texture is prepared on the metal structural member 100 by adopting laser engraving, etching or printing and the like, the fineness of the prepared texture is not high, and the requirements of some metal structural members 100 with higher requirements on the fineness of the texture, such as LOGO, decorative rings and the like, cannot be met by the laser engraving, etching or printing and the like. The surface treatment is performed on the metal structural member 100 in the present application, so that the metal structural member 100 has a fine texture with a three-dimensional effect, and thus the metal structural member 100 has a more refined appearance effect.
As shown in fig. 2 and 3, in an embodiment, the first ink layer 120, the optical coating layer 130, the optical texture layer 140, the second ink layer 150 and the hardening layer 160 are sequentially disposed on the outer surface of the metal substrate 110. The first ink layer 120 is located on the surface of the metal substrate 110, the optical coating layer 130 is located on the side of the first ink layer 120 facing away from the metal substrate 110, the optical texture layer 140 is located on the side of the optical coating layer 130 facing away from the first ink layer 120, the second ink layer 150 is located on the side of the optical texture layer 140 facing away from the optical coating layer 130, and the hardening layer 160 is located on the side of the second ink layer 150 facing away from the optical texture layer 140.
As shown in fig. 2 and 3, in one embodiment, the first ink layer 120 is a transparent ink or an opaque ink, forming a primer for the metal structure 100. In the present application, it is defined that when the light transmittance is 70% or more, the transparent layer is transparent, and when the light transmittance is less than 70%, the opaque layer is opaque. A logo, design, or character may be printed on the first ink layer 120 to display a brand or a characteristic of the electronic device 10. The ink forming the first ink layer 120 includes a pigment, a binder, a filler and an adjuvant so that the first ink layer 120 can be attached to the metal substrate 110.
In an embodiment, a varnish layer may be disposed between the first ink layer 120 and the metal substrate 110. Gloss oil, a synthetic resin, is now commonly referred to as a surface clear varnish, made with binders and auxiliaries, and the like, without any pigment, and after film formation the oil is glossy. The gloss oil layer can increase the bonding force between the first ink layer 120 and the metal substrate 110, and prevent the first ink layer 120 from falling off from the metal substrate 110.
In one embodiment, the optical coating layer 130 is a monochrome layer or a color layer. The permeability of the metal structural member 100 is low, so that the metal structural member 100 does not look sufficiently transparent and is difficult to make an ideal sense of value. The optical coating layer 130 is disposed on a side of the first ink layer 120 opposite to the metal substrate 110, so that the metal substrate 110 is more flexible and vivid, and does not stay rigid or stiff with the change of light. The optical coating layer 130 improves the brightness and permeability of the metal substrate 110, makes it close to glass, and improves the overall value feeling.
As shown in fig. 2 and fig. 3, in an embodiment, a side of the optical coating layer 130 facing away from the first ink layer 120 is provided with an optical texture layer 140 having a three-dimensional effect. The optical texture layer 140 has a three-dimensional dynamic visual effect, and as the angle of light changes, the metal structure 100 has a dynamic brilliant effect, and the appearance effect of the metal structure 100 is increased.
In one embodiment, as shown in fig. 2 and 3, the side of the optical texture layer 140 facing away from the optical coating layer 130 is provided with a second ink layer 150. The second ink layer 150 is made of transparent ink for protecting the optical texture layer 140. A hardened layer 160 is disposed on a side of the second ink layer 150 facing away from the optical texture layer 140, and the hardened layer 160 is made of transparent protective paint. The hardened layer 160 covers the second ink layer 150, so that the outer surface of the metal structure 100 forms a transparent protective paint, which, in addition to beautifying the decoration, also gives the metal structure 100 a number of special properties, such as: wear resistance, solvent resistance, heat resistance, special chemical resistance and the like.
In one embodiment, as shown in fig. 4, the optically textured layer 140 and the optically plated layer 130 are bonded together by an OCA glue layer 135. The OCA glue layer 135 is a transparent layer, and the display effect of the first ink layer 120 and the optical coating layer 130 is not affected.
As shown in fig. 5, in one embodiment, a method for manufacturing a metal structural member 100 is provided, including:
step a, printing ink on a metal substrate 110 to form a first ink layer 120;
step b, carrying out optical coating on one side of the ink layer, which is back to the metal substrate 110, so as to form an optical coating layer 130;
step c, performing UV transfer printing on the side, opposite to the first ink layer 120, of the optical coating layer 130 to manufacture an optical texture layer 140;
step d, printing ink on the side of the optical texture layer 140 away from the metal substrate 110 to form a second ink layer 150; and
step e, coating a hardened layer 160 on the side of the second ink layer 150 facing away from the metal substrate 110.
In an embodiment, the ink is printed on the metal substrate 110 to form the first ink layer 120, and the first ink layer 120 is a transparent ink or a colored ink to form a bottom color of the metal substrate 110. The ink forming the first ink layer 120 includes a pigment, a binder, a filler and an adjuvant so that the first ink layer 120 can be attached to the metal substrate 110. In another embodiment, the surface of the metal substrate 110 may be coated with gloss oil to form a gloss oil layer, and the side of the gloss oil layer facing away from the metal substrate 110 is printed with ink to form the first ink layer 120, where the gloss oil layer may increase the adhesion between the metal substrate 110 and the first ink layer 120 to prevent the first ink layer 120 from falling off the metal substrate 110.
In one embodiment, an optical coating is performed on the first ink layer 120 to form an optical coating layer 130. Coating OCA glue on the side of the optical coating layer 130 opposite to the first ink layer 120 to form an OCA glue layer 135, so that the optical coating layer 130 is bonded with the subsequent optical texture layer 140.
In one embodiment, the UV transfer glue is dripped into a formed mold; and attaching the side of the metal substrate 110 provided with the optical coating layer 130 to the glue injection part of the mold, and discharging bubbles. In order to ensure that the UV transfer adhesive has excellent adhesion with the metal substrate 110, the metal substrate 110 and the UV transfer adhesive are bonded and then placed at room temperature for 3-5min to fully wet the UV transfer adhesive and the metal substrate 110; and (3) performing illumination curing through a UV curing machine to form UV embossing on the metal substrate 110, wherein the lines of the UV embossing can be diversified. The thickness of the UV embossing is 20-30UM, and the UV light energy is 400-500MG/C square meter. In order to prevent the UV transfer printing glue from shrinking during the photo-curing process, a transparent glass plate should be covered on the upper surface to absorb excessive heat emitted by the UV lamp. The optical texture layer 140 with a three-dimensional effect is manufactured on the metal substrate 110 through UV transfer.
In one embodiment, the second ink layer 150 is formed by printing ink on the side of the optical texture layer 140 opposite to the optical coating layer 130 to protect the optical texture layer 140. And the second ink layer 150, the first ink layer 120 and the optical coating layer 130 together enable the metal structure 100 to present a more beautiful color effect. A transparent protective varnish is screen printed on the second ink layer 150 to form a hardened layer 160. The stiffening layer 160, in addition to its aesthetic function, also imparts to the metallic structure 100 a number of special properties, such as: wear resistance, solvent resistance, heat resistance, special chemical resistance and the like.
The utility model provides a metal structure 100 is through setting gradually first printing ink layer 120, optics coating film layer 130, and carry out the UV rendition in one side of optics coating film layer 130, form optics texture layer 140, set gradually second printing ink layer 150 and sclerosis layer 160 on optics texture layer 140, make metal structure 100's surface have the meticulous texture of stereoeffect, more exquisite outward appearance effect has, sclerosis layer 160 still gives metal structure 100 wear-resisting, solvent-resistant, heat-resisting, the good performance of resistant special chemicals etc..
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method of manufacturing a metallic structural member, comprising:
step a, printing ink on a metal substrate to form a first ink layer;
b, performing optical coating on one side of the ink layer, which is back to the metal substrate, to form an optical coating layer;
c, carrying out UV transfer printing on one side of the optical coating layer, which is back to the first ink layer, so as to manufacture an optical texture layer;
d, printing ink on one side of the optical texture layer, which is far away from the metal substrate, to form a second ink layer; and
and e, coating a hardening layer on one side of the second ink layer, which is opposite to the metal substrate.
2. The method for manufacturing a metal structure according to claim 1, wherein the step a comprises applying varnish on the surface of the metal substrate to form a varnish layer, and printing ink on the side of the varnish layer opposite to the metal substrate to form the first ink layer.
3. The method of manufacturing a metallic structural member according to claim 1, wherein the ink forming the first ink layer includes a pigment, a binder, a filler, and an adjuvant.
4. The method of manufacturing a metallic structure according to claim 1, wherein the UV transfer printing includes UV embossing and UV photocuring.
5. The method of claim 1, wherein step b and step c include applying an OCA paste to a side of the optical coating layer opposite to the first ink layer to form an OCA paste layer.
6. The method of manufacturing a metallic structural member according to claim 1, wherein the hardened layer is a transparent protective paint.
7. The metal structural part is characterized by comprising a metal substrate, wherein a first ink layer, an optical coating layer, an optical texture layer, a second ink layer and a hardening layer are sequentially arranged on the outer surface of the metal substrate.
8. The metallic construct of claim 7, wherein an OCA glue layer is disposed between the optical coating layer and the optical texturing layer.
9. The metallic structure of claim 7, wherein said hardened layer is a transparent protective paint.
10. An electronic device comprising the metallic structural member of any one of claims 7 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811574165.4A CN111347816A (en) | 2018-12-21 | 2018-12-21 | Metal structural member, electronic device, and method for manufacturing metal structural member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811574165.4A CN111347816A (en) | 2018-12-21 | 2018-12-21 | Metal structural member, electronic device, and method for manufacturing metal structural member |
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| CN111347816A true CN111347816A (en) | 2020-06-30 |
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| CN201811574165.4A Pending CN111347816A (en) | 2018-12-21 | 2018-12-21 | Metal structural member, electronic device, and method for manufacturing metal structural member |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111816808A (en) * | 2020-07-10 | 2020-10-23 | RealMe重庆移动通信有限公司 | Battery cover, shell assembly and electronic equipment |
| CN112848721A (en) * | 2021-01-14 | 2021-05-28 | 格力电器（郑州）有限公司 | Method for forming lines on metal surface and application |
| CN113423213A (en) * | 2021-06-08 | 2021-09-21 | Oppo广东移动通信有限公司 | Shell assembly, preparation method thereof and electronic equipment |
| CN113645338A (en) * | 2021-08-07 | 2021-11-12 | 东莞市聚龙高科电子技术有限公司 | Terminal shell and manufacturing method thereof |
| CN116141858A (en) * | 2023-02-27 | 2023-05-23 | 浙江兆奕科技有限公司 | Surface decoration method for rear cover of 3D metal battery |
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Application publication date: 20200630 |