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Color-treated base material and base material color treatment method therefor

A color treatment and base material technology, applied in the direction of metal material coating process, etc., can solve the problems of difficult to achieve metal texture, difficult to display various colors, etc., to achieve the effect of improved homogeneity and corrosion resistance, and effective use

Active Publication Date: 2016-08-10
POHANG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the above-mentioned PVD-sol-gel method, although a metallic texture is realized on the surface of the substrate, it is not a metallic texture inherent to magnesium, and there is a problem that it is difficult to display various colors.
In addition, when the anodic oxidation method is used for color development, not only will an opaque oxide film be formed on the surface of the substrate, but it is also difficult to achieve the inherent metallic texture of the metal.

Method used

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  • Color-treated base material and base material color treatment method therefor
  • Color-treated base material and base material color treatment method therefor
  • Color-treated base material and base material color treatment method therefor

Examples

Experimental program
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Effect test

Embodiment 1

[0106] A 1 cm x 1 cm x 0.4 T test piece containing magnesium was dipped in an alkaline cleaning solution for degreasing, and the degreased test piece was immersed in a 10% by weight NaOH solution at 100° C. for 40 minutes. Then, the test piece was rinsed with distilled water and dried in a drying oven to prepare a color-treated test piece.

Embodiment 2

[0108] Instead of immersing the magnesium test piece in a 100° C., 10% by weight NaOH solution for 40 minutes in the above-mentioned Example 1, but immersing it for 30 minutes, it was carried out in the same manner as in the above-mentioned Example 1, Thus, a test piece chromogenically treated to yellow was prepared.

Embodiment 3

[0110] Instead of immersing the magnesium test piece in a 100°C, 10% by weight NaOH solution for 40 minutes in the above-mentioned Example 1, it was immersed for 55 minutes. Thus, a test piece chromogenically treated to violet was prepared.

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Abstract

The present invention relates to a color-treated base material and a base material color treatment method therefor. The base material is capable of improving the homogeneity and corrosion resistance of the surface of the base material and realizing a uniform color in a short period of time. Accordingly, the color-treated base material can be usefully used in the fields of building exterior materials, automobile interiors, and particularly electrical and electronic component materials, such as mobile phone case components, in which a magnesium material is used.

Description

technical field [0001] The present invention relates to a color-developed substrate containing magnesium and a substrate color-treated method therefor. Background technique [0002] Magnesium, as an ultra-light metal among practical metals, has excellent wear resistance, strong sunlight resistance, and is environmentally friendly, but there are problems that it is difficult to reflect the metal texture and various colors. In addition, since it is extremely active as an electrochemically very active metal, it corrodes very rapidly in air or in a solution when no color-developing treatment is performed, so there are many difficulties in terms of industrial application. [0003] In recent years, the magnesium industry has attracted attention due to the general trend of lightweighting in the industry. As metal-like outer packaging materials have become a trend in the field of electrical and electronic component materials such as mobile phone casing parts, active efforts have bee...

Claims

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Application Information

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IPC IPC(8): C23C22/46
Inventor 郑铉珠柳润夏李正熙林玉姬赵载东
Owner POHANG IRON & STEEL CO LTD
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