US20130216852A1 - Housing for electroni device - Google Patents
Housing for electroni device Download PDFInfo
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- US20130216852A1 US20130216852A1 US13/855,650 US201313855650A US2013216852A1 US 20130216852 A1 US20130216852 A1 US 20130216852A1 US 201313855650 A US201313855650 A US 201313855650A US 2013216852 A1 US2013216852 A1 US 2013216852A1
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- United States
- Prior art keywords
- layer
- metallic luster
- housing
- resin
- metallic
- 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.)
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/04—Metal casings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
- B05D5/067—Metallic effect
- B05D5/068—Metallic effect achieved by multilayers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/22—Removing surface-material, e.g. by engraving, by etching
- B44C1/228—Removing surface-material, e.g. by engraving, by etching by laser radiation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12361—All metal or with adjacent metals having aperture or cut
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
Definitions
- the present disclosure generally relates to housings and, particularly, to a housing for a portable electronic device and a method of manufacturing the housing.
- textured patterns or stripes are often formed on the exterior housing of such devices.
- Hair lines are commonly formed on metallic housings of materials such as magnesium alloy, aluminum, and stainless steel.
- metallic housings are difficult to manufacture and at a high cost.
- Plastic housings are easily manufactured by injection molding and have a low cost, but lack the appeal of the metallic appearance and texturing which can be difficult to directly form on the plastic housing.
- FIG. 1 is a cross-section of a portion of an embodiment of a housing.
- FIG. 2 is a flowchart of an embodiment of a method for manufacturing the housing in FIG. 1 .
- an embodiment of a housing 10 includes a metallic base 11 , a chemical plating layer 12 , a primer layer 13 , a color coating layer 14 , a metallic luster layer 15 , and a transparent protection layer 16 .
- the chemical plating layer 12 , the primer layer 13 , the color coating layer 14 , the metallic luster layer 15 , and the transparent protection layer 16 are coated on the metallic base 11 in that order.
- the metallic luster layer 15 defines a pattern 17 extending through the metallic luster layer 15 .
- the metallic base 11 may be magnesium alloy, aluminum alloy, or any other metal.
- the chemical plating layer 12 protects the metallic base 11 from oxidation, and improves coating performance of the metallic base 11 .
- the chemical plating layer 12 may be mainly phosphate.
- the primer layer 13 further protects the metallic base 11 from oxidation and corrosion.
- the primer layer 13 includes a first connecting layer 132 adjacent to the chemical plating layer 12 , and a second connecting layer 134 coated on the first connecting layer 132 .
- the first connecting layer 132 masks surface defects of the metallic base 11 , and enhances bonding between the chemical plating layer 12 and the second connecting layer 134 .
- the first connecting layer 132 includes a material selected from the group consisting of polyester resin, epoxy resin, and combination thereof, and includes pigments dispersed therein. (Dear Clifford, I think the amendments are no new matter, because the first connecting layer, the second connecting layer and the transparent protection layer are Markush group described in claims 3 , 4 , and 8 of original document filed on Aug. 3, 2009, I have added the features to the specification)
- the pigments may be carbon black, exhibiting favorable absorption of laser energy.
- the thickness of the first connecting layer 132 may be about 25 micrometers ( ⁇ m) to about 50 ⁇ m.
- the second connecting layer 134 further masks surface defects of the metallic base 11 .
- the second connecting layer 134 include a material selected from the group consisting of acrylic resin, polyester resin, epoxy resin, amino resin, acrylate copolymer, propylene glycol methyl ether acetate (PMA), butyl ester, and any suitable combination thereof, and pigments dispersed therein.
- the pigments may be carbon black, exhibiting favorable absorption of laser energy.
- the thickness of the second connecting layer 134 may be about 15 ⁇ m to about 20 ⁇ m.
- the color coating layer 14 normalizes the surface of the metallic base 11 and provides a background color to the pattern 17 .
- the color coating layer 14 include acrylic resin, polyester resin, epoxy resin, amino resin, acrylate copolymer, PMA, butyl ester, and pigments dispersed therein.
- the pigments may be any desired color.
- the thickness of the color coating layer 14 may be about 15 ⁇ m to about 80 ⁇ m.
- the metallic luster layer 15 includes acrylic resin, polyester resin, epoxy resin, amino resin, acrylate copolymer, PMA, butyl ester, pigments and aluminum oxide powder dispersed therein.
- the pigments and the aluminum oxide powder may be in a nanometer scale.
- the aluminum oxide powder provides metallic luster to the housing 10 , and generates a light reflection effect to provide the pattern 17 with a stereoscopic appearance.
- the thickness of the metallic luster layer 15 may be about 2 ⁇ m to about 7 ⁇ m.
- the pattern 17 is defined in the metallic luster layer 15 via laser engraving. In the illustrated embodiment, the pattern 17 extends through the metallic luster layer 15 to the color coating layer 14 . Thus, the pattern 17 shows the color of the color coating layer 14 . Alternatively, the pattern 17 may extend through the metallic luster layer 15 and the color coating layer 14 to the primer layer 13 . Thus, the pattern 17 may show the color of the connecting layer 132 or the color of the second connecting layer 134 .
- the transparent protection layer 16 protects the metallic luster layer 15 and the pattern 17 from abrasion, and improves glossiness of the housing 10 .
- the transparent protection layer 16 includes a material selected from the group consisting of acrylic resin, polyester resin, epoxy resin, amino resin, silicon dioxide, acrylate copolymer, PMA, and butyl ester, and any suitable combination thereof. Thickness of the transparent protection layer 16 may be about 20 ⁇ m to about 80 ⁇ m.
- the pattern 17 extends through the metallic luster layer 15 and shows the color of the color coating layer 14 , when viewed from the front, the pattern 17 shows a color different from the metallic luster layer 15 , thus the pattern 17 is conspicuously defined in the metallic luster layer 15 .
- the metallic luster layer 15 provides metallic luster to the housing 10 , and generates a light reflection effect to enable the pattern 17 to exhibit a stereoscopic appearance.
- the pattern 17 may show changed color, due to the light reflection of the metallic luster layer 15 and the light refraction of the transparent protection layer 16 .
- the connecting layer 132 or the second connecting layer 134 may be omitted.
- an embodiment of a method of manufacturing the housing 10 is also provided.
- the metallic base 11 may be manufactured by casting, forging, or extrusion molding.
- the metallic base 11 is submerged in a chemical solution, such as a phosphate solution, forming the chemical plating layer 12 on a surface thereof.
- a chemical solution such as a phosphate solution
- the primer layer 13 is coated on the chemical plating layer 12 .
- the primer layer 13 includes the first connecting layer 132 and the second connecting layer 134 .
- a first connecting coating is coated on the chemical plating layer 12 and dried, thereby forming the first connecting layer 132 .
- a second connecting coating is then coated on the first connecting layer 132 and dried, thereby forming the second connecting layer 134 .
- the first connecting coating includes a material selected from the group consisting of polyester resin, epoxy resin, and combination thereof, and includes pigments dispersed therein.
- the first connecting coating may be coated on the chemical plating layer 12 by spray coating.
- a drying temperature of the first connecting coating is about 150 degrees Celsius (° C.) to about 200° C.
- a drying time of the first connecting coating is about 10 minutes to about 30 minutes.
- the second connecting coating includes a material selected from the group consisting of acrylic resin, polyester resin, epoxy resin, amino resin, acrylate copolymer, PMA, butyl ester, and any suitable combination thereof, and pigments dispersed therein.
- the second connecting coating may be coated on the first connecting layer 132 by spray coating.
- a drying temperature of the second connecting coating is about 130° C. to about 180° C.
- a drying time of the second connecting coating is about 10 minutes to about 30 minutes.
- a color coating is coated on the second connecting layer 134 and dried, thereby forming the color coating layer 14 .
- the color coating include acrylic resin, polyester resin, epoxy resin, amino resin, acrylate copolymer, PMA, butyl ester, and pigments dispersed therein.
- the color coating may be coated on the second connecting layer 134 by spray coating.
- a drying temperature of the color coating is about 50° C. to about 180° C.
- a drying time of the color coating is about 10 minutes to about 30 minutes.
- a metallic luster coating is coated on the color coating layer 14 and dried, thereby forming the metallic luster layer 15 .
- the metallic luster coating include acrylic resin, polyester resin, epoxy resin, amino resin, acrylate copolymer, PMA, butyl ester, pigments and aluminum oxide powder dispersed therein.
- the metallic luster coating may be coated on the color coating layer 14 by spray coating.
- a drying temperature of the metallic luster coating is about 50° C. to about 180° C.
- a drying time of the metallic luster coating is about 10 minutes to about 30 minutes.
- the metallic base 11 is received in a laser engraver, and predetermined regions of the metallic luster layer 15 are engraved.
- the materials of the metallic luster layer 15 at the predetermined regions disintegrate due to the energy of the laser, thus defining the pattern 17 in the metallic luster layer 15 .
- the power of the laser is adjusted to enable the pattern 17 to extend through the metallic luster layer 15 .
- a transparent coating is coated on the metallic luster layer 15 and dried, thereby forming the transparent protection layer 16 .
- the transparent coating include acrylic resin, polyester resin, epoxy resin, amino resin, silicon dioxide, acrylate copolymer, PMA, and butyl ester.
- the transparent coating may be coated on the metallic luster layer 15 by spray coating.
- a drying temperature of the transparent coating is about 50° C. to about 180° C.
- a drying time of the transparent coating is about 10 minutes to about 30 minutes.
- first connecting layer 132 may be omitted, and the second connecting layer 134 directly coated on the chemical plating layer 12 , or second connecting layer 134 may be omitted, and the color coating layer 14 directly coated on the first connecting layer 132 .
- a metallic base 11 is cast of magnesium alloy, and then submerged in a phosphate solution to form a chemical plating layer 12 .
- a first connecting coating is coated on the chemical plating layer 12 and dried for about 30 minutes, at about 150° C., thus forming a first connecting layer 132 about 50 ⁇ m thick.
- a color coating is coated on the connecting layer 132 and dried for about 15 minutes, at about 100° C., thus forming a color coating layer 14 about 15 ⁇ m thick.
- a metallic luster coating is coated on the color coating layer 14 and dried for about 30 minutes, at about 50° C., thus forming the metallic luster layer 15 about 5 ⁇ m thick.
- a laser is irradiated on the predetermined regions of the metallic luster layer 15 , thus defining a pattern 17 extending through the metallic luster layer 15 .
- a transparent coating is coated on the metallic luster layer 15 and dried for about 10 minutes, at about 180° C., thus forming a transparent protection layer 16 about 50 ⁇ m thick.
- a metallic base 11 is forged of aluminum alloy.
- the metallic base 11 is then submerged in a phosphate solution to form a chemical plating layer 12 .
- a second connecting coating is coated on the chemical plating layer 12 and dried for about 10 minutes, at about 180° C., thus forming a second connecting layer 134 about 15 ⁇ m thick.
- a color coating is coated on the second connecting layer 134 and dried for about 30 minutes, at about 50° C., thus forming a color coating layer 14 about 80 ⁇ m thick.
- a metallic luster coating is coated on the color coating layer 14 and dried for about 10 minutes, at about 100° C., thus forming a metallic luster layer 15 about 7 ⁇ m thick.
- a laser is irradiated on the predetermined regions of the metallic luster layer 15 , thus defining a pattern 17 extending through the metallic luster layer 15 .
- a transparent coating is coated on the metallic luster layer 15 and dried for about 30 minutes, at about 50° C., thus forming a transparent protection layer 16 about 80 ⁇ m thick.
- a metallic base 11 is cast of magnesium alloy and then submerged in a phosphate solution to form a chemical plating layer 12 .
- a first connecting coating is coated on the chemical plating layer 12 and dried for about 10 minutes, at about 200° C., thus forming a first connecting layer 132 about 25 ⁇ m thick.
- a second connecting coating is coated on the first connecting layer 132 and dried for about 30 minutes, at about 130° C., thus forming a second connecting layer 134 about 20 ⁇ m thick.
- a color coating is coated on the second connecting layer 134 and dried for about 10 minutes, at about 180° C., thus forming a color coating layer 14 about 30 ⁇ m thick.
- a metallic luster coating is coated on the color coating layer 14 and dried for about 15 minutes, at about 180° C., thus forming a metallic luster layer 15 about 2 ⁇ m thick.
- a laser is irradiated on the predetermined regions of the metallic luster layer 15 , thus defining a pattern 17 extending through the metallic luster layer 15 .
- a transparent coating is coated on the metallic luster layer 15 and dried for about 15 minutes, at about 100° C., thus forming a transparent protection layer 16 about 20 ⁇ m thick.
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Abstract
A housing for a portable electronic device includes a metallic base, a chemical plating layer, a primer layer, a color coating layer, a metallic luster layer, and a transparent protection layer. The chemical plating layer, the primer layer, the color coating layer, the metallic luster layer, and the transparent protection layer are coated on the metallic base in that order. The metallic luster layer defines a pattern extending through the metallic luster layer.
Description
- The present application is a divisional application of U.S. patent application Ser. No. 12/534251, filed on Aug. 3, 2009.
- 1. Technical Field
- The present disclosure generally relates to housings and, particularly, to a housing for a portable electronic device and a method of manufacturing the housing.
- 2. Description of Related Art
- Electronic devices such as notebook computers, MP3 players, personal digital assistants, and mobile phones are in common use. A pleasing appearance and finish, such as a metallic finish, are often important to users.
- Accordingly, textured patterns or stripes are often formed on the exterior housing of such devices. Hair lines are commonly formed on metallic housings of materials such as magnesium alloy, aluminum, and stainless steel. However, such metallic housings are difficult to manufacture and at a high cost. Plastic housings are easily manufactured by injection molding and have a low cost, but lack the appeal of the metallic appearance and texturing which can be difficult to directly form on the plastic housing.
- Therefore, what is needed, is a housing that overcomes the limitations described.
- The components in the drawing is not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present disclosure.
-
FIG. 1 is a cross-section of a portion of an embodiment of a housing. -
FIG. 2 is a flowchart of an embodiment of a method for manufacturing the housing inFIG. 1 . - Referring to
FIG. 1 , an embodiment of ahousing 10 includes ametallic base 11, achemical plating layer 12, aprimer layer 13, acolor coating layer 14, ametallic luster layer 15, and atransparent protection layer 16. Thechemical plating layer 12, theprimer layer 13, thecolor coating layer 14, themetallic luster layer 15, and thetransparent protection layer 16 are coated on themetallic base 11 in that order. Themetallic luster layer 15 defines apattern 17 extending through themetallic luster layer 15. - The
metallic base 11 may be magnesium alloy, aluminum alloy, or any other metal. - The
chemical plating layer 12 protects themetallic base 11 from oxidation, and improves coating performance of themetallic base 11. Thechemical plating layer 12 may be mainly phosphate. - The
primer layer 13 further protects themetallic base 11 from oxidation and corrosion. In the illustrated embodiment, theprimer layer 13 includes a first connectinglayer 132 adjacent to thechemical plating layer 12, and a second connectinglayer 134 coated on the first connectinglayer 132. - The first connecting
layer 132 masks surface defects of themetallic base 11, and enhances bonding between thechemical plating layer 12 and the second connectinglayer 134. The first connectinglayer 132 includes a material selected from the group consisting of polyester resin, epoxy resin, and combination thereof, and includes pigments dispersed therein. (Dear Clifford, I think the amendments are no new matter, because the first connecting layer, the second connecting layer and the transparent protection layer are Markush group described in claims 3, 4, and 8 of original document filed on Aug. 3, 2009, I have added the features to the specification) The pigments may be carbon black, exhibiting favorable absorption of laser energy. The thickness of the first connectinglayer 132 may be about 25 micrometers (μm) to about 50 μm. - The second connecting
layer 134 further masks surface defects of themetallic base 11. The second connectinglayer 134 include a material selected from the group consisting of acrylic resin, polyester resin, epoxy resin, amino resin, acrylate copolymer, propylene glycol methyl ether acetate (PMA), butyl ester, and any suitable combination thereof, and pigments dispersed therein. The pigments may be carbon black, exhibiting favorable absorption of laser energy. The thickness of the second connectinglayer 134 may be about 15 μm to about 20 μm. - The
color coating layer 14 normalizes the surface of themetallic base 11 and provides a background color to thepattern 17. Thecolor coating layer 14 include acrylic resin, polyester resin, epoxy resin, amino resin, acrylate copolymer, PMA, butyl ester, and pigments dispersed therein. The pigments may be any desired color. The thickness of thecolor coating layer 14 may be about 15 μm to about 80 μm. - The
metallic luster layer 15 includes acrylic resin, polyester resin, epoxy resin, amino resin, acrylate copolymer, PMA, butyl ester, pigments and aluminum oxide powder dispersed therein. The pigments and the aluminum oxide powder may be in a nanometer scale. The aluminum oxide powder provides metallic luster to thehousing 10, and generates a light reflection effect to provide thepattern 17 with a stereoscopic appearance. The thickness of themetallic luster layer 15 may be about 2 μm to about 7 μm. - The
pattern 17 is defined in themetallic luster layer 15 via laser engraving. In the illustrated embodiment, thepattern 17 extends through themetallic luster layer 15 to thecolor coating layer 14. Thus, thepattern 17 shows the color of thecolor coating layer 14. Alternatively, thepattern 17 may extend through themetallic luster layer 15 and thecolor coating layer 14 to theprimer layer 13. Thus, thepattern 17 may show the color of the connectinglayer 132 or the color of the second connectinglayer 134. - The
transparent protection layer 16 protects themetallic luster layer 15 and thepattern 17 from abrasion, and improves glossiness of thehousing 10. Thetransparent protection layer 16 includes a material selected from the group consisting of acrylic resin, polyester resin, epoxy resin, amino resin, silicon dioxide, acrylate copolymer, PMA, and butyl ester, and any suitable combination thereof. Thickness of thetransparent protection layer 16 may be about 20 μm to about 80 μm. - Because the
pattern 17 extends through themetallic luster layer 15 and shows the color of thecolor coating layer 14, when viewed from the front, thepattern 17 shows a color different from themetallic luster layer 15, thus thepattern 17 is conspicuously defined in themetallic luster layer 15. At the same time, themetallic luster layer 15 provides metallic luster to thehousing 10, and generates a light reflection effect to enable thepattern 17 to exhibit a stereoscopic appearance. When viewed from the side, thepattern 17 may show changed color, due to the light reflection of themetallic luster layer 15 and the light refraction of thetransparent protection layer 16. - In alternative embodiments, if the
metallic base 11 has minimal surface defects, the connectinglayer 132 or the second connectinglayer 134 may be omitted. - Referring to
FIG. 2 , an embodiment of a method of manufacturing thehousing 10 is also provided. - The
metallic base 11 may be manufactured by casting, forging, or extrusion molding. - The
metallic base 11 is submerged in a chemical solution, such as a phosphate solution, forming thechemical plating layer 12 on a surface thereof. - The
primer layer 13 is coated on thechemical plating layer 12. Theprimer layer 13 includes the first connectinglayer 132 and the second connectinglayer 134. A first connecting coating is coated on thechemical plating layer 12 and dried, thereby forming the first connectinglayer 132. A second connecting coating is then coated on the first connectinglayer 132 and dried, thereby forming the second connectinglayer 134. The first connecting coating includes a material selected from the group consisting of polyester resin, epoxy resin, and combination thereof, and includes pigments dispersed therein. The first connecting coating may be coated on thechemical plating layer 12 by spray coating. A drying temperature of the first connecting coating is about 150 degrees Celsius (° C.) to about 200° C. A drying time of the first connecting coating is about 10 minutes to about 30 minutes. The second connecting coating includes a material selected from the group consisting of acrylic resin, polyester resin, epoxy resin, amino resin, acrylate copolymer, PMA, butyl ester, and any suitable combination thereof, and pigments dispersed therein. The second connecting coating may be coated on the first connectinglayer 132 by spray coating. A drying temperature of the second connecting coating is about 130° C. to about 180° C. A drying time of the second connecting coating is about 10 minutes to about 30 minutes. - A color coating is coated on the second connecting
layer 134 and dried, thereby forming thecolor coating layer 14. The color coating include acrylic resin, polyester resin, epoxy resin, amino resin, acrylate copolymer, PMA, butyl ester, and pigments dispersed therein. The color coating may be coated on the second connectinglayer 134 by spray coating. A drying temperature of the color coating is about 50° C. to about 180° C. A drying time of the color coating is about 10 minutes to about 30 minutes. - A metallic luster coating is coated on the
color coating layer 14 and dried, thereby forming themetallic luster layer 15. The metallic luster coating include acrylic resin, polyester resin, epoxy resin, amino resin, acrylate copolymer, PMA, butyl ester, pigments and aluminum oxide powder dispersed therein. The metallic luster coating may be coated on thecolor coating layer 14 by spray coating. A drying temperature of the metallic luster coating is about 50° C. to about 180° C. A drying time of the metallic luster coating is about 10 minutes to about 30 minutes. - The
metallic base 11 is received in a laser engraver, and predetermined regions of themetallic luster layer 15 are engraved. The materials of themetallic luster layer 15 at the predetermined regions disintegrate due to the energy of the laser, thus defining thepattern 17 in themetallic luster layer 15. The power of the laser is adjusted to enable thepattern 17 to extend through themetallic luster layer 15. - A transparent coating is coated on the
metallic luster layer 15 and dried, thereby forming thetransparent protection layer 16. The transparent coating include acrylic resin, polyester resin, epoxy resin, amino resin, silicon dioxide, acrylate copolymer, PMA, and butyl ester. The transparent coating may be coated on themetallic luster layer 15 by spray coating. A drying temperature of the transparent coating is about 50° C. to about 180° C. A drying time of the transparent coating is about 10 minutes to about 30 minutes. - Alternatively, the first connecting
layer 132 may be omitted, and the second connectinglayer 134 directly coated on thechemical plating layer 12, or second connectinglayer 134 may be omitted, and thecolor coating layer 14 directly coated on the first connectinglayer 132. - In one embodiment of the method of manufacturing a
housing 10, ametallic base 11 is cast of magnesium alloy, and then submerged in a phosphate solution to form achemical plating layer 12. A first connecting coating is coated on thechemical plating layer 12 and dried for about 30 minutes, at about 150° C., thus forming a first connectinglayer 132 about 50 μm thick. A color coating is coated on the connectinglayer 132 and dried for about 15 minutes, at about 100° C., thus forming acolor coating layer 14 about 15 μm thick. A metallic luster coating is coated on thecolor coating layer 14 and dried for about 30 minutes, at about 50° C., thus forming themetallic luster layer 15 about 5 μm thick. A laser is irradiated on the predetermined regions of themetallic luster layer 15, thus defining apattern 17 extending through themetallic luster layer 15. Finally, a transparent coating is coated on themetallic luster layer 15 and dried for about 10 minutes, at about 180° C., thus forming atransparent protection layer 16 about 50 μm thick. - In another embodiment of the method of manufacturing a
housing 10, ametallic base 11 is forged of aluminum alloy. Themetallic base 11 is then submerged in a phosphate solution to form achemical plating layer 12. A second connecting coating is coated on thechemical plating layer 12 and dried for about 10 minutes, at about 180° C., thus forming a second connectinglayer 134 about 15 μm thick. A color coating is coated on the second connectinglayer 134 and dried for about 30 minutes, at about 50° C., thus forming acolor coating layer 14 about 80 μm thick. A metallic luster coating is coated on thecolor coating layer 14 and dried for about 10 minutes, at about 100° C., thus forming ametallic luster layer 15 about 7 μm thick. A laser is irradiated on the predetermined regions of themetallic luster layer 15, thus defining apattern 17 extending through themetallic luster layer 15. Finally, a transparent coating is coated on themetallic luster layer 15 and dried for about 30 minutes, at about 50° C., thus forming atransparent protection layer 16 about 80 μm thick. - In yet another embodiment of the method of manufacturing a
housing 10, ametallic base 11 is cast of magnesium alloy and then submerged in a phosphate solution to form achemical plating layer 12. A first connecting coating is coated on thechemical plating layer 12 and dried for about 10 minutes, at about 200° C., thus forming a first connectinglayer 132 about 25 μm thick. A second connecting coating is coated on the first connectinglayer 132 and dried for about 30 minutes, at about 130° C., thus forming a second connectinglayer 134 about 20 μm thick. A color coating is coated on the second connectinglayer 134 and dried for about 10 minutes, at about 180° C., thus forming acolor coating layer 14 about 30 μm thick. A metallic luster coating is coated on thecolor coating layer 14 and dried for about 15 minutes, at about 180° C., thus forming ametallic luster layer 15 about 2 μm thick. A laser is irradiated on the predetermined regions of themetallic luster layer 15, thus defining apattern 17 extending through themetallic luster layer 15. Finally, a transparent coating is coated on themetallic luster layer 15 and dried for about 15 minutes, at about 100° C., thus forming atransparent protection layer 16 about 20 μm thick. - It is believed that the present embodiments and their advantages will be understood from the foregoing description, and it will be apparent that various changes may be made thereto without departing from the spirit and scope of the disclosure or sacrificing all of its material advantages.
Claims (8)
1. A housing for a portable electronic device, comprising:
a metallic base;
a chemical plating layer, a primer layer, a color coating layer, a metallic luster layer, and a transparent protection layer coated on the metallic base in that order;
wherein the metallic luster layer defines a pattern extending through the metallic luster layer for exposing the color coating layer, the color coating layer comprises acrylic resin, polyester resin, epoxy resin, amino resin, acrylate copolymer, propylene glycol methyl ether acetate, butyl ester, and pigments dispersed therein, the metallic luster layer comprises acrylic resin, polyester resin, epoxy resin, amino resin, acrylate copolymer, propylene glycol methyl ether acetate, butyl ester, pigments and aluminum oxide powder dispersed therein, the transparent protection layer is formed on the metallic luster layer for protecting the metallic luster layer from abrasion.
2. The housing of claim 1 , wherein the primer layer comprises a first connecting layer and a second connecting layer coated thereon.
3. The housing of claim 2 , wherein the first connecting layer comprises a material selected from the group consisting of polyester resin, epoxy resin, and combination thereof; and the first connecting layer also comprises pigments dispersed therein.
4. The housing of claim 2 , wherein the second connecting layer comprises a material selected from the group consisting of acrylic resin, polyester resin, epoxy resin, amino resin, acrylate copolymer, propylene glycol methyl ether acetate, butyl ester, and any suitable combination thereof; the second connecting layer also comprises pigments dispersed therein.
5. The housing of claim 1 , wherein the pigments and the aluminum oxide powder are in a nanometer scale.
6. The housing of claim 1 , wherein the transparent protection layer comprises a material selected from the group consisting of acrylic resin, polyester resin, epoxy resin, amino resin, acrylate copolymer, propylene glycol methyl ether acetate, butyl ester, and any suitable combination thereof; the transparent protection layer also comprises silicon dioxide dispersed therein.
7. The housing of claim 1 , wherein the pattern is defined in the metallic luster layer via laser engraving.
8. The housing of claim 2 , wherein the thickness of the first connecting layer is about 25 μm to about 50 μm, the thickness of the second connecting layer is about 15 μm to about 20 μm, the thickness of the color coating layer is about 15 μm to about 80 μm, the thickness of the metallic luster layer is about 2 μm to about 7 μm, and the thickness of the transparent protection layer is about 20 μm to about 80 μm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US13/855,650 US20130216852A1 (en) | 2009-05-04 | 2013-04-02 | Housing for electroni device |
Applications Claiming Priority (4)
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CN200910302094.7 | 2009-05-04 | ||
CN2009103020947A CN101883477A (en) | 2009-05-04 | 2009-05-04 | Shell and manufacturing method thereof |
US12/534,251 US8435607B2 (en) | 2009-05-04 | 2009-08-03 | Housing and method of manufacturing the same |
US13/855,650 US20130216852A1 (en) | 2009-05-04 | 2013-04-02 | Housing for electroni device |
Related Parent Applications (1)
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US12/534,251 Division US8435607B2 (en) | 2009-05-04 | 2009-08-03 | Housing and method of manufacturing the same |
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US20130216852A1 true US20130216852A1 (en) | 2013-08-22 |
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Family Applications (2)
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US12/534,251 Active 2031-06-12 US8435607B2 (en) | 2009-05-04 | 2009-08-03 | Housing and method of manufacturing the same |
US13/855,650 Abandoned US20130216852A1 (en) | 2009-05-04 | 2013-04-02 | Housing for electroni device |
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US12/534,251 Active 2031-06-12 US8435607B2 (en) | 2009-05-04 | 2009-08-03 | Housing and method of manufacturing the same |
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CN (1) | CN101883477A (en) |
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US20120055902A1 (en) * | 2010-09-07 | 2012-03-08 | Samsung Electronics Co., Ltd. | Method for finishing exterior surface of injection-molded product |
WO2019096224A1 (en) * | 2017-11-16 | 2019-05-23 | 比亚迪股份有限公司 | Housing of electronic device and method for preparing same, and electronic device |
US10851447B2 (en) | 2016-12-02 | 2020-12-01 | Honeywell International Inc. | ECAE materials for high strength aluminum alloys |
US11649535B2 (en) | 2018-10-25 | 2023-05-16 | Honeywell International Inc. | ECAE processing for high strength and high hardness aluminum alloys |
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Also Published As
Publication number | Publication date |
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US20100279042A1 (en) | 2010-11-04 |
CN101883477A (en) | 2010-11-10 |
US8435607B2 (en) | 2013-05-07 |
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