Method for compounding double-layer plating films on plastic surface by fully dry method

A double-layer composite and all-dry technology, which is applied in chemical instruments and methods, metal material coating technology, coatings, etc., can solve the problems of lack of metal texture, large amount of metal consumption, high water and energy consumption, etc. Achieve the effect of hard and smooth surface, less metal consumption, and improved gloss

Active Publication Date: 2012-01-25

XIAMEN RUNNER IND CORP

9 Cites 7 Cited by

AI-Extracted Technical Summary

Problems solved by technology

However, the water electroplating process has the following disadvantages: (1) It consumes a lot of water and energy, and produces a large amount of waste water

(3) Emission of toxic waste gas

(4) Large amount of metal consumption

[0003] Chinese patent CN1468976 discloses a surface treatment method suitable for metals and non-metals. It is mainly because the existing surface treatment methods have serious environmental pollution, and the anti-corrosion effect and surface gloss are poor after treatment. It is a fixed frame that can be used for positioning items. The items are positioned on the fixed bracket. First, a base film is placed on the surface of the item, and then a metal plating layer is formed by vacuum electroplating. After that, the fixing frame and the item are directly electrocoated to make the e...

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Abstract

The invention provides a method for compounding double-layer plating films on the plastic surface by a fully dry method, which relates to a method for obtaining a metal compound layer on the plastic surface. Pigment is added into plastic cement master batch for carrying out dyeing treatment, then, the materials are formed into plastic cement blanks through injection molding, the plastic cement blanks are cleaned and activated by a dry method, the activated plastic cement blanks are sprayed and coated with organic coating layers, the plastic blanks are placed into a physical gas-phase furnace to plate metal ceramic composite films, and final products are obtained. Through tests, the metallized plastic products prepared by the method have the advantages of anti-corrosion, wear resistance, weather resistance, temperature resistance, colorful performance and the like, in addition, the surface is hard and smooth, the quality of the prepared metallized plastic products is comparable to the quality of traditional water electroplating metal products, the coarsening and activating and water washing processes in the traditional water electroplating process are omitted, no harmful electroplating liquid medicine is adopted, and the toxic hexavalent chromium is not adopted. In the process, the metal consumption is low, the waste gas is little, and the complete waste-water-free discharge is also realized. The function and the quality of the plastic surface treatment product can be improved, the production cost can be reduced, the efficiency can be improved, the water is saved, and the environment is protected.

Application Domain

Vacuum evaporation coatingSputtering coating +3

Technology Topic

Weather resistanceSurface finishing +15

Image

Examples

Experimental program(4)

Example Embodiment

[0027] Example 1 An ABS material hexavalent chromium light chromium faucet

[0028] 1) The ABS masterbatch with dyed silver-white treatment, injection molding blanks, flame cleaning and activation after wiping with a dry cloth, and electrostatic dust removal, the flame treatment time is 4s.

[0029] 2) After cleaning the workpiece, spray a layer of 20μm thick UV curable paint. Use infrared light to heat and level (60℃×8min), and then cure by ultraviolet light (1000J/m 2 ×40s).

[0030] 3) Transfer the blanks sprayed with UV-curable coatings into the PVD (Physical Vapor Deposition) furnace for plasma gas activation (conditions: ion source current 0.3A, bias voltage 100V, furnace vacuum pressure 0.2Pa, working airflow is Ar 2 And O 2 Mixed air flow, mixing ratio 50SCCM:50SCCM, activation time 5min); then plating a layer of metal film Cr with a thickness of 0.1μm on the paint surface (arc coating conditions: chromium target current 80A, bias voltage 70V, and 30SCCM Ar 2 , Vacuum pressure 0.2Pa, coating time 1min), and then plating a layer of 0.3um chromium nitride ceramic film (arc coating conditions: chromium target current 80A, bias voltage 70V, 100SCCM Ar 2 100SCCM N 2 , Vacuum pressure 0.4Pa, coating time 10min), and then a layer of metal film Cr (arc coating conditions: chromium target current 80A, bias voltage 70V, 30SCCM Ar 2 , Vacuum pressure 0.2Pa, coating time 2min).

[0031] The product obtained by this process has a high gloss surface like a mirror and can pass the following functional tests:

[0032] (A) CASS anti-corrosion: 8h;

[0033] (B) 8 cycles of thermal shock cycle;

[0034] (C) Impact of falling sand: 18L falling sand;

[0035] (D) Binding force (Bai cut): 5A;

[0036] (E) Water immersion at 38°C: 24h;

[0037] (F) Pencil hardness (Mitsubishi): 3H;

[0038] (G) RCA abrasion test: 500 times.

[0039] figure 1 An electron micrograph (100 times) of an embodiment of the invention is given. in figure 1 In, the marks are: 1 is a cermet composite film, 2 is an organic coating, and 3 is a plastic substrate.

Example Embodiment

[0040] Example 2 A nylon material-plated imitation gold handle

[0041] 1) The PA masterbatch with dyed gold treatment, injection molding blanks, flame cleaning and activation after wiping with a dry cloth, and then electrostatic dust removal, the flame treatment time is 12s.

[0042] 2) Spray a layer of 30μm thick thermal curing paint, use the leveling temperature (60℃×15min), and then cure (80℃×25min).

[0043] 3) Transfer the sprayed paint blank into a PVD (Physical Vapor Deposition) furnace for plasma gas activation (conditions: ion source current 0.3A, bias voltage 100V, furnace vacuum pressure 0.2Pa, working airflow is Ar 2 And O 2 Mixed air flow, mixing ratio 70SCCM: 30SCCM, activation time 5min); then plating a layer of 0.1μm metal film Zr on the paint surface (arc coating conditions: zirconium target current 120A, bias voltage 70V, pass 50SCCM Ar 2 , Vacuum pressure 0.2Pa, coating time 2min), followed by a layer of 0.3um zirconium nitride film (arc coating conditions: zirconium target current 120A, bias voltage 70V, 200SCCM N 2 , Vacuum pressure 0.4Pa, coating time 3min).

[0044] The product obtained by this process has a high gloss surface like a mirror and can pass the following functional tests:

[0045] (A) CASS anti-corrosion: 16h;

[0046] (B) 8 cycles of thermal shock cycle;

[0047] (C) Impact of falling sand: 18L falling sand;

[0048] (D) Binding force (Bai cut): 5A;

[0049] (E) Water immersion at 38°C: 24h;

[0050] (F) Pencil hardness (Mitsubishi): 2H;

[0051] (G) RCA abrasion test: 500 times.

Example Embodiment

[0052] Example 3 A BMC material stainless steel refrigerator handle

[0053] 1) BMC pellets treated with dyed stainless steel color, injection molded blanks, flame cleaning and activation after wiping with a dry cloth, and electrostatic dust removal, wherein the flame treatment time is 15s.

[0054] 2) Preheat the workpiece to 120 degrees, spray a layer of 50μm thick thermal curing coating, the preheating temperature of thermal curing coating (130℃×5min), then leveling (150℃×5min), and then curing (170℃×20min) ).

[0055] 3) Transfer the sprayed coating blank into a PVD (Physical Vapor Deposition) furnace for plasma gas activation (conditions: ion source current 0.3A, bias voltage 120V, furnace vacuum pressure 0.2Pa, working airflow is Ar 2 And O 2 Mixed air flow, mixing ratio 50SCCM: 100SCCM, activation time 5min); then plating a layer of 0.1μm metal film Zr on the paint surface (arc coating conditions: zirconium target current 120A, bias voltage 70V, pass 50SCCM Ar 2 , Vacuum pressure 0.2Pa, coating time 1min), and then plate a layer of 0.6um zirconium nitride film (arc coating conditions: zirconium target current 120A, bias voltage 70V, pass Ar 100SCCM80SCCM N 2 , Vacuum pressure 0.3Pa, coating time 6min).

[0056] The product obtained by this process has a high gloss surface like a mirror and can pass the following functional tests:

[0057] (A) CASS anti-corrosion: 16h;

[0058] (B) 8 cycles of thermal shock cycle;

[0059] (C) Impact of falling sand: 18L falling sand;

[0060] (D) Binding force (Bai cut): 5A;

[0061] (E) Water immersion at 38°C: 24h;

[0062] (F) Pencil hardness (Mitsubishi): 3H;

[0063] (G) RCA abrasion test: 500 times.

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PUM

Property	Measurement	Unit
Pencil hardness	3.0	H
Thickness	0.1	µm
Pencil hardness	2.0	H
tensile		MPa
Particle size		Pa
strength	10

Description & Claims & Application Information

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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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Classification and recommendation of technical efficacy words

High gloss
Hard and smooth surface

Method for compounding double-layer plating films on plastic surface by fully dry method

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Image

Examples

Example Embodiment

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

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