Metal surface color gradient treatment method and metal material prepared by same

A treatment method and color gradient technology, which can be applied to the device for coating liquid on the surface, special surface, pre-treatment surface, etc., can solve the problems such as the inability to realize the gradient effect, and achieve the effect of improving the decorative effect

Active Publication Date: 2014-01-29
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it can only achieve linear gradients, and cannot achieve gradient effects from light to dark to l

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0039] Example 1

[0040] Place the aluminum metal workpiece in the alloy degreasing powder with a concentration of 50g / L, and perform degreasing and dewaxing treatment at a temperature of 60±10℃ for 4 minutes, and then in a NaOH solution with a concentration of 60g / L and a temperature of 70±10℃ Carry out alkaline etching treatment for 15 seconds, and then place it in a 40% nitric acid solution for neutralization treatment to fully clean the surface.

[0041] Then anodize the aluminum alloy workpiece in the anodizing solution; the concentration of sulfuric acid in the anodizing solution is 180g / L, the concentration of aluminum ion is 6g / L, the temperature of the anodizing solution is 19-20℃, and the DC voltage is set to 15V, oxidation time is 40 minutes.

[0042] Use automatic spraying equipment to make a single-color radial gradient sample, and spray water-soluble ink containing dye on the surface of the workpiece. The main component of the dye is the blue dye of model 419 produced...

Example Embodiment

[0044] Example 2

[0045] Place the aluminum metal workpiece in the alloy degreasing powder with a concentration of 50g / L, and perform degreasing and dewaxing treatment at a temperature of 60±10℃ for 4 minutes, and then in a NaOH solution with a concentration of 60g / L and a temperature of 70±10℃ Carry out alkali etching treatment for 15 seconds, and then place it in a 40% nitric acid solution for neutralization treatment to fully clean the surface.

[0046] Then anodize the aluminum alloy workpiece in the anodizing solution; the concentration of sulfuric acid in the anodizing solution is 160g / L, the concentration of aluminum ion is 5g / L, the temperature of the anodizing solution is 19-20℃, and the DC voltage is set to 13V, oxidation time is 35 minutes.

[0047] Use automatic spraying equipment to make single-color radial gradient samples, and spray water-soluble ink containing dyes on the surface of the workpiece. The main component of the dye is the red dye of model 102 produced b...

Example Embodiment

[0049] Example 3

[0050] Place the aluminum metal workpiece in the alloy degreasing powder with a concentration of 50g / L, and perform degreasing and dewaxing treatment at a temperature of 60±10℃ for 4 minutes, and then in a NaOH solution with a concentration of 60g / L and a temperature of 70±10℃ Carry out alkaline etching treatment for 15 seconds, and then place it in a 40% nitric acid solution for neutralization treatment to fully clean the surface.

[0051] Then anodize the aluminum alloy workpiece in the anodizing solution; the sulfuric acid concentration in the anodizing solution is 200g / L, the aluminum ion concentration is 10g / L, the temperature of the anodizing solution is 19-20℃, and the DC voltage is set to 16V, oxidation time is 30 minutes.

[0052] Take out the work piece, wash it thoroughly, and then dry it in an oven at a temperature of 85°C for 6 minutes.

[0053] Use automatic spraying equipment to make single-color radial gradient samples, and spray water-soluble ink...

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PUM

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Abstract

The invention provides a metal surface treatment method. The metal surface treatment method mainly comprises the steps of anode oxidation treatment, gradient spraying treatment, coloring treatment, printing ink removal treatment and hole sealing treatment. Through gradient spraying, water-soluble printing ink containing dye is sprayed to the surface of an anode oxidation film layer; by controlling the thickness (namely quantity) of printing ink on the surface of a workpiece, a single-color gradient effect is achieved, or a multi-color gradient effect is achieved for the surface of the workpiece through multi-color spraying; various gradient effects such as a linear gradient effect, a radial gradient effect and a rhombic gradient effect can be achieved; a metal surface decoration effect is greatly improved.

Description

technical field [0001] The invention relates to the field of surface treatment, in particular to a metal surface treatment method. Background technique [0002] At present, in metal surface decoration, the realization of gradient color is mainly realized by direct spraying or printing on the surface of the metal workpiece. For the gradation of high-end digital shell decoration, spraying is the most common method. Through the control of spraying equipment, one or several color gradations can be obtained. It can realize the gradual change of various colors, and there are many forms of gradual change, but the existing sprayed surface decoration layer is a paint film, and due to the poor bonding force between the paint film and the metal, it is easy to fall off during use; at the same time, due to the paint film The low hardness is easy to scratch and wear during use, and its surface is easy to lose luster. The influence of these factors limits its application in the surface d...

Claims

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Application Information

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IPC IPC(8): C25D11/02B05D7/14B05D3/10
CPCB05D3/10C25D11/243C25D11/08C25D11/246B05D5/06C25D11/02C25D11/16
Inventor 高春楠陈梁
Owner BYD CO LTD
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