CN103817853A - Injection part surface treatment process - Google Patents

Injection part surface treatment process Download PDF

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Publication number
CN103817853A
CN103817853A CN201210465500.3A CN201210465500A CN103817853A CN 103817853 A CN103817853 A CN 103817853A CN 201210465500 A CN201210465500 A CN 201210465500A CN 103817853 A CN103817853 A CN 103817853A
Authority
CN
China
Prior art keywords
surface treatment
base material
working
treatment according
spraying
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.)
Pending
Application number
CN201210465500.3A
Other languages
Chinese (zh)
Inventor
叶家和
李正祥
叶耿堂
杨芸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Land Group Co Ltd
Original Assignee
Anhui Land Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anhui Land Group Co Ltd filed Critical Anhui Land Group Co Ltd
Priority to CN201210465500.3A priority Critical patent/CN103817853A/en
Publication of CN103817853A publication Critical patent/CN103817853A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14688Coating articles provided with a decoration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14688Coating articles provided with a decoration
    • B29C2045/14704Coating articles provided with a decoration ink decorations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C2045/1486Details, accessories and auxiliary operations
    • B29C2045/14868Pretreatment of the insert, e.g. etching, cleaning

Abstract

The invention discloses an injection part surface treatment process. The process comprises the following steps: spraying, coating a titanium metal layer, screen printing, electroplating and injection molding. A product treated by using the injection part surface treatment process disclosed by the invention has the remarkable effects of high corner angle and high stereoscopic impression in surface, better appearance, good hardness, wear-resisting property, chemical erosion resistance and ultraviolet resistance conforming to the corresponding standard and can be widely applied to plastic shells of cell phones, panel personal computers and other consumer electronics.

Description

A kind of moulding process of surface treatment
Technical field
The present invention relates to a kind of moulding process of surface treatment.
Background technology
Along with the continuous lifting of people's living standard, the consumption electronic products such as mobile phone, panel computer are more and more universal, and on the basis of becoming stronger day by day in function, the texture of its plastic casing and the third dimension of pattern, also more and more become the index that consumer selects.In the time that being sprayed paint, product plastic casing there are at present following problems: (1) layer of paint is blocked up; (2) particle that sprays paint is excessively thick; (3) uniformity of spraying paint is poor; (4) wear no resistance; (5) spray paint and have dead angle; (6) the spray paint the problems of application of ground; (7) spray paint and affect the intensity of material; (8) the dirty point of lacquered surface.
In addition, also have poor effect when plastic casing is done to stereoeffect, third dimension is not strong, but cannot process for wedge angle and angular structures, has obvious limitation, is not suitable for batch production, the defects such as inefficiency.
Summary of the invention
The technical problem to be solved in the present invention is to provide that a kind of surface three-dimensional sense is good, the easy moulding process of surface treatment of processing procedure.
For solving the problems of the technologies described above, a kind of moulding process of surface treatment of the present invention, comprises the steps:
(1) spraying: at the two sides of base material coating resin class paint respectively, and be cured;
(2) be coated with titanium coating: vacuum splashing and plating titanium oxide metal level, the light transmittance of this titanium oxide metal level is 75~80%;
(3) screen painting: after mould is cleaned and spraying paint, dry, then by ink printing on the base material being coated with after titanium coating, after overcuring, rely on mould positioning mechanism location, in Mo Nei and together moulding of base material;
(4) electroplate: utilize electrode to pass through electric current, make the attached work of metal on substrate surface, then base material is carried out to die-cut formation sheet material;
(5) injection mo(u)lding: die-cut good sheet material is positioned in corresponding injection mold and carries out injection mo(u)lding, obtain finished product.
For improving spraying effect, when above-mentioned steps (1) spraying, also add paint thinner.
Above-mentioned base material is PC or PET.
The thickness of above-mentioned base material is 0.15~0.3 millimeter.
The thickness of above-mentioned titanium coating is 2~10 microns.
The invention has the beneficial effects as follows: the product surface of the treatment process processing of injecting products of the present invention has significant high corner angle, high relief effect, product is more attractive in appearance, and product has good hardness, anti-wear performance, resist chemical performance and anti-UV performance meet respective standard.Can be widely used in, on the plastic casing of mobile phone, panel computer and other consumption electronic products, greatly having promoted the competitiveness of product.
The specific embodiment
Improve an injection moulding process for working of plastics surface gloss, comprise the steps: a kind of moulding process of surface treatment, comprise the steps: (1) spraying: at the two sides of base material coating resin class paint respectively, and be cured; (2) be coated with titanium coating: vacuum splashing and plating titanium oxide metal level, the light transmittance of this titanium oxide metal level is 75~80%; (3) screen painting: after mould is cleaned and spraying paint, dry, then by ink printing being coated with after titanium coating on base material, after overcuring, rely on mould positioning mechanism location, in Mo Nei and together moulding of base material; (4) electroplate: utilize electrode to pass through electric current, make the attached work of metal on substrate surface, then base material is carried out to die-cut formation sheet material; (5) injection mo(u)lding: die-cut good sheet material is positioned in corresponding injection mold and carries out injection mo(u)lding, obtain finished product.
Final products are tested through hardness test, adhesion force test, wear-resisting test, anti-test chemical, anti-UV:
Wherein, hardness test condition is: load: 1Kgf, and effect angle: 45 °, using appliance: Mitsubishi 2H pencil, result shows does not have scratch.
Adhesion test: the method for testing of nondestructive testing: jerk after using 3M-595 adhesive tape 5cm length to be affixed on surface, result display surface dope layer can not be pulled up; The method of testing of destructive testing: mark grid (thermosetting 1mm × 1mm, thermoplasticity 2mm × 2mm) on surface with blade, then with jerking after on 3M-595 tape sticker, be less than 15% dope layer and be removed in grid.
Wear-resisting test: RCA tester table, use 11/16 wide banded blank sheet of paper, 17 circles per minute, loading is 175g, result demonstration loses polishing scratch.
Anti-test chemical: acid test, exposure time 24,48,72 hours, surface is through without any change; 60 ℃ of alkali tests, exposure time 24,48,72 hours, surface is through without any change.
Anti-UV test: at 60 ℃, the UV irradiation (wavelength 313nm) of 200 hours, surface is rear without any change after tested.
In sum, have good hardness by the moulding for the treatment of process processing of the present invention, anti-wear performance, resist chemical performance and anti-UV performance meet respective standard.

Claims (5)

1. a moulding process of surface treatment, is characterized in that comprising the steps:
(1) spraying: at the two sides of base material coating resin class paint respectively, and be cured;
(2) be coated with titanium coating: vacuum splashing and plating titanium oxide metal level, the light transmittance of this titanium oxide metal level is 75~80%;
(3) screen painting: mould is cleaned and spray paint after dry, then by ink printing on the base material being coated with after titanium coating, after overcuring, rely on mould positioning mechanism location, in Mo Nei and together moulding of base material;
(4) electroplate: utilize electrode to pass through electric current, make the attached work of metal on substrate surface, then base material is carried out to die-cut formation sheet material;
(5) injection mo(u)lding: die-cut good sheet material is positioned in corresponding injection mold and carries out injection mo(u)lding, obtain finished product.
2. a kind of working of plastics process of surface treatment according to claim 1, is characterized in that: when described step (1) spraying, also add paint thinner.
3. a kind of working of plastics process of surface treatment according to claim 1, is characterized in that: described base material is PC or PET.
4. a kind of working of plastics process of surface treatment according to claim 1, is characterized in that: the thickness of described base material is 0.15~0.3 millimeter.
5. a kind of working of plastics process of surface treatment according to claim 1, is characterized in that: the thickness of described titanium coating is 2~10 microns.
CN201210465500.3A 2012-11-17 2012-11-17 Injection part surface treatment process Pending CN103817853A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210465500.3A CN103817853A (en) 2012-11-17 2012-11-17 Injection part surface treatment process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210465500.3A CN103817853A (en) 2012-11-17 2012-11-17 Injection part surface treatment process

Publications (1)

Publication Number Publication Date
CN103817853A true CN103817853A (en) 2014-05-28

Family

ID=50753273

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210465500.3A Pending CN103817853A (en) 2012-11-17 2012-11-17 Injection part surface treatment process

Country Status (1)

Country Link
CN (1) CN103817853A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103600457A (en) * 2013-10-25 2014-02-26 安徽工贸职业技术学院 Stereoscopic plastic piece surface treatment technology
CN106493052A (en) * 2016-12-21 2017-03-15 苏州曼柯精密部件有限公司 The lacquer spraying technique of motion bracelet plastic cement form
CN106553308A (en) * 2015-09-25 2017-04-05 广州市宝利邦德高分子材料有限公司 A kind of preparation method of plastics plating piece
CN110524790A (en) * 2019-08-30 2019-12-03 广东长盈精密技术有限公司 Center production method, center and electronic equipment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103600457A (en) * 2013-10-25 2014-02-26 安徽工贸职业技术学院 Stereoscopic plastic piece surface treatment technology
CN106553308A (en) * 2015-09-25 2017-04-05 广州市宝利邦德高分子材料有限公司 A kind of preparation method of plastics plating piece
CN106553308B (en) * 2015-09-25 2021-08-06 广州市宝利邦德高分子材料有限公司 Preparation method of plastic plated part
CN106493052A (en) * 2016-12-21 2017-03-15 苏州曼柯精密部件有限公司 The lacquer spraying technique of motion bracelet plastic cement form
CN110524790A (en) * 2019-08-30 2019-12-03 广东长盈精密技术有限公司 Center production method, center and electronic equipment

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PB01 Publication
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20140528