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Preparation method of coated article and coated article prepared by it

A technology of sputtering method and glass base material, which is applied in the preparation of coated parts and the field of coated parts made from it, can solve the problems of limited color of the film layer, etc., and achieve the effect of improving appearance competitiveness, simple process and rich colors

Inactive Publication Date: 2012-10-17
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the prior art, the color of the film layer formed on the surface of the shell by PVD coating technology is very limited. Currently, the PVD film layers that can be widely prepared and used are mainly golden yellow, black, blue and other colors.

Method used

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  • Preparation method of coated article and coated article prepared by it
  • Preparation method of coated article and coated article prepared by it

Examples

Experimental program
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preparation example Construction

[0018] A coating member 10 of a preferred embodiment of the present invention (such as figure 1 Shown) the preparation method comprises the steps:

[0019] A substrate 11 is provided, and the substrate 11 is transparent glass.

[0020] The surface of the substrate 11 is pretreated. The pretreatment step includes: conventional degreasing and wax removal, and then spraying the substrate 11 with deionized water, and drying the substrate 11 for future use after spraying.

[0021] combined reference figure 2 , provide a vacuum coating machine 20, the vacuum coating machine 20 includes a coating chamber 21 and a vacuum pump 30 connected to the coating chamber 21, the vacuum pump 30 is used to evacuate the coating chamber 21. The coating chamber 21 is provided with a turntable (not shown), two tin targets 23 opposite to each other and two aluminum targets 24 opposite to each other. The turntable drives the base material 11 to revolve along the circular track 25 , and the base ma...

Embodiment 1

[0031] The vacuum coating machine 20 used in this embodiment is a magnetron sputtering coating machine.

[0032] Metal tin deposition: the temperature of the substrate 11 is 230° C., the flow rate of argon gas is 100 sccm; the power of the tin target 23 is 11 kW, the bias voltage applied to the substrate 11 is -30 V, and the deposition time is 20 minutes.

[0033] Metal tin is thermally oxidized to form tin oxide: the oxygen flow rate is 500 sccm, the temperature of the substrate 11 is 230° C., and the treatment time is 20 min.

[0034] Aluminum oxide deposition: the temperature of the substrate 11 is 120°C, the flow rate of argon gas is 100 sccm; the flow rate of oxygen gas is 50 sccm, the power of the aluminum target 24 is 5kW, the bias voltage applied to the substrate 11 is -50V, and the deposition time is 40min .

[0035] In this embodiment, the thickness of the color layer 13 is 500nm. The result of testing the color difference of the color layer 13 through the base mat...

Embodiment 2

[0037] Metal tin deposition: the temperature of the substrate 11 is 300° C., the flow rate of argon gas is 500 sccm; the power of the tin target 23 is 5 kW, the bias voltage applied to the substrate 11 is -50 V, and the deposition time is 5 minutes.

[0038] Metal tin is thermally oxidized to form tin oxide: the oxygen flow rate is 100 sccm, the temperature of the substrate 11 is 250° C., and the treatment time is 10 min.

[0039] Aluminum oxide deposition: the temperature of the substrate 11 is 180° C., the flow rate of argon is 500 sccm; the flow rate of oxygen is 100 sccm, the power of the aluminum target 24 is 11 kW, the bias voltage applied to the substrate 11 is -100 V, and the deposition time is 20 min .

[0040] In this embodiment, the thickness of the color layer 13 is 680nm. The result of testing the color difference of the color layer 13 through the substrate 11 is: the L* coordinate is 88, the a* coordinate is 0.1, and the b* coordinate is -0.4.

[0041] In the p...

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Abstract

The invention provides a preparation method of a coated article, and the method comprises the following steps of: providing a transparent glass substrate; depositing metallic tin on the surface of the glass substrate by a sputtering method, and controlling the temperature of the glass substrate at 230-300DEG C during sputtering; conducting thermal oxidation treatment on the metallic tin at the surface of the glass substrate to form tin oxide; continuing adopting the sputtering method to deposit alumina on the surface of the treated substrate, with a composite film layer of the tin oxide and the alumina forming a color layer, which is found to present a white color by observing through the transparent substrate. The preparation method of a coated article of the invention is stable, reliable and environment friendly. The invention also provides a coated article prepared by the method.

Description

technical field [0001] The invention relates to a method for preparing a coating piece and a coating piece prepared by the method. Background technique [0002] In order to make the casing of the electronic device rich in color, currently the decorative coating is mainly prepared by processes such as anodic oxidation, baking varnish, and porcelain baking. Compared with these traditional processes, PVD coating technology is more green and environmentally friendly, and the use of PVD coating technology can form a decorative color layer with a metallic texture on the surface of the product shell. [0003] However, in the prior art, the color of the film layer formed on the surface of the shell by PVD coating technology is very limited. Currently, the PVD film layers that can be widely prepared and used are mainly golden yellow, black, blue and other colors. White, as a classic color, is difficult to obtain through PVD coating technology in the industry at present, so using PVD...

Claims

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Application Information

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IPC IPC(8): C23C28/04
Inventor 张新倍陈文荣蒋焕梧陈正士戴龙文林顺茂
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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