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Bicolor basal plate and method for preparing same

A color base and substrate technology, applied in special decorative structures, vacuum evaporation plating, coatings, etc., can solve the problems of increased cost, poor wear resistance, and cumbersome processes, and achieve lower manufacturing costs and better bonding. Good, simple preparation method

Inactive Publication Date: 2010-03-17
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method requires deplating, two coatings, and covering protection, and the process is cumbersome, and it also causes an increase in cost
At the same time, the wear resistance of the product and the bonding force between the junction of the two colors and the substrate are poor

Method used

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preparation example Construction

[0017] A method for preparing a two-color substrate. The base material is treated with one of the treatment methods of chemical etching, stamping, and die-casting, so that the surface of the base material forms a raised area and a non-raised area. The base material in the protruding area is subjected to surface plating treatment to form a film layer on the base material. The protruding thickness of the protruding area of ​​the substrate containing the film layer is different from that of the non-protruding area, so that the protruding area and the non-protruding area present different differences. color.

[0018] The chemical etching, stamping, and die-casting molding are common chemical etching, stamping, and die-casting moldings in the field, as long as they can form a protruding area and a non-protruding area with clear boundaries.

[0019] In the present invention, only common magnetron sputtering in the field is used as an example to illustrate the content of the present ...

Embodiment 1

[0033] The present invention is illustrated by using the stainless steel substrate B1 that has been chemically etched and cleaned to carry out intermediate frequency magnetron sputtering ion plating.

[0034] The thickness of the protruding area of ​​the base material of the stainless steel substrate B1 protruding from the non-protruding area is 0.7 mm. The film layer is a two-layer film, a metal titanium layer and a titanium dioxide layer. The selected target material is a titanium target with a purity of 99.99%.

[0035] Put B1 into the vacuum furnace, close the furnace door, turn on the vacuum pump to evacuate to 3.0×10 -2 Pa, adjust the vacuum degree to 2.0 Pa by introducing argon gas, the bias voltage to 600 volts, and the duty cycle to 50%, to perform plasma bombardment cleaning and activation for 10 minutes.

[0036] Introduce the working gas argon to make the vacuum degree 3.5×10 -1 Pa, turn on the titanium target power supply, the power supply is 16kW, the bias vol...

Embodiment 2

[0041] The present invention is illustrated by using the etched and cleaned aluminum alloy substrate B2 for ion plating by intermediate frequency magnetron sputtering.

[0042] The protruding area of ​​the aluminum alloy substrate B2 is 0.8 mm thicker than the non-protruding area. The film layer is a two-layer film, a metal titanium layer and a silicon dioxide layer. The selected target materials are titanium targets and silicon targets with a purity of 99.99%.

[0043] Put B2 into the vacuum furnace, close the furnace door, turn on the vacuum pump to evacuate to 3.0×10 -2 Pa, adjust the vacuum degree to 2.0 Pa by introducing argon gas, the bias voltage to 600 volts, and the duty cycle to 50%, to perform plasma bombardment cleaning and activation for 10 minutes.

[0044] Introduce the working gas argon to make the vacuum degree 3.2×10 -1 Pa, turn on the titanium target power supply, the power supply is 14kW, the bias voltage is 200V, the duty cycle is 50%, and the time is 7 m...

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Abstract

The invention provides a bicolor basal plate and a method for preparing the same. The bicolor basal plate comprises a base material and a film layer covered on the base material, wherein the base material is provided with a protruding area and a non-protruding area; the film layer comprises at least one layer of film; due to the difference between the thicknesses of the film layers on the protruding area and the non-protruding area, the protruding area and the non-protruding area show different colors; and the film layers covered on the protruding area and the non-protruding are made of same materials. The preparation method comprises: processing the base material by one of the processing methods such as chemical etching, punching and die cast so as to form the protruding area and the non-protruding area on the surface of the base material; and performing spluttering treatment on the surface of the base material with the protruding area and the non-protruding area at least once so as to make the thicknesses of the film layers on the protruding area and the non-protruding area differ. The bicolor basal plate has the advantages that: the color selectivity of the product is rich, theanti-wearing property of the color film layer of the product is good, the bonding force of the color film layer to the base material is good, and the method for preparing the bicolor basal plate is simple.

Description

technical field [0001] The invention relates to the technical field of surface treatment, and mainly relates to a two-color substrate and a preparation method thereof. Background technique [0002] Trademarks, buttons, etc. are one of the surface accessories of electronic products such as mobile phones, digital cameras, and computers, and play an important decorative role. At present, thin films are often added on the surface of electronic products to achieve the purpose of surface decoration. In the prior art, multi-layer coatings are used, such as sputtering metal and metal oxide layers on the surface of the substrate, and the thickness of the metal oxide layer is controlled according to the principle of light interference. , prepared metallized substrates of various colors. However, in this method, the thickness of a certain metal oxide layer can only correspond to one color, and it is impossible to obtain a substrate with a double-color (two-color) surface at one time. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B44C5/04B44C3/02B44C1/24B44C1/00B32B3/30B32B7/02C23C14/34
Inventor 郑程林郭丽芬赖金洪宫清
Owner BYD CO LTD
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