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
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[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 pressur...
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[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: zirconi...
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 press...
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