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Metal surface treatment method

A technology for metal surface treatment and metal workpieces, applied in anodizing and other directions, can solve the problems of wear resistance, scratch resistance, can not achieve ceramic performance and effect, does not have ceramic enamel texture, etc., to achieve the effect of good surface appearance and performance

Active Publication Date: 2013-10-30
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these blue and white porcelain effects are not real underglaze color porcelain effects, and do not have the texture of ceramic enamel, and the surface is ink-coated, and its wear resistance and scratch resistance cannot achieve the performance and effect of ceramics.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The aluminum metal workpiece is degreased and dewaxed in alloy degreasing powder 50g / L for 4 minutes, and then alkali-etched in a NaOH solution with a concentration of 60g / L and a temperature of 70±10°C for 15s, and then placed in Neutralize in a 40% nitric acid solution to fully clean the surface.

[0031] Then the workpiece is placed in the anodic oxidation solution for anodic oxidation treatment; the concentration of sulfuric acid in the anodic oxidation solution is 180g / L, the concentration of aluminum ions is 6g / L, the temperature of the anodic oxidation solution is 19-20°C, and the DC voltage is set as 15V, the oxidation time is 40 minutes.

[0032] Then use inkjet printing to print patterns on the surface of the workpiece. The inkjet printing machine used is the model AT6001 digital printing machine produced by Shenzhen Yueda Color Printing. The ink used is dye solvent ink, and the main component of dye is Ingredients Phthalocyanine dyes. Let the workpiece stan...

Embodiment 2

[0035] The aluminum alloy workpiece is degreased and dewaxed in alloy degreasing powder 50g / L for 4 minutes, and then subjected to alkali etching treatment in NaOH solution with a concentration of 60g / L and a temperature of 70±10°C for 15s.

[0036] Then place the workpiece in a chemical whitening solution for 50 seconds. The whitening solution contains 1.5 mol / L of ammonium bifluoride and 0.45 mol / L of ammonium sulfate; the temperature of the solution is controlled at 25°C. Then place it in a nitric acid solution with a concentration of 40% for neutralization treatment, and fully clean the surface for 10 seconds.

[0037]Then the workpiece is placed in the anodic oxidation solution for anodic oxidation treatment; the concentration of sulfuric acid in the anodic oxidation solution is 180g / L, the concentration of aluminum ions is 6g / L, the temperature of the anodic oxidation solution is 19-20°C, and the DC voltage is set as 15V, the oxidation time is 40 minutes.

[0038] Then ...

Embodiment 3

[0041] The aluminum alloy workpiece is degreased and dewaxed in alloy degreasing powder 50g / L for 4 minutes, and then subjected to alkali etching treatment in NaOH solution with a concentration of 60g / L and a temperature of 70±10°C for 15s.

[0042] Then place the workpiece in a chemical whitening solution for 80 seconds. The whitening solution includes 1 mol / L of ammonium bifluoride and 0.4 mol / L of ammonium sulfate; the temperature of the solution is controlled at 30°C. Then place it in a nitric acid solution with a concentration of 40% for neutralization treatment, and fully clean the surface for 15 seconds.

[0043] Then the workpiece is placed in an anodic oxidation solution for anodic oxidation treatment, the concentration of sulfuric acid in the anodic oxidation solution is 160g / L, the concentration of aluminum ions is 8g / L, the temperature of the anodic oxidation solution is 19-20°C, and the DC voltage is set to 13V, the oxidation time is 35 minutes.

[0044] Then use...

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PUM

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Abstract

The invention provides a metal surface treatment method which mainly comprises the following steps of: anodic oxidation treatment, pattern making, hole sealing treatment and polishing treatment. The metal surface treatment method provided by the invention can be used for manufacturing a surface ornamentation layer with ceramic appearance and tactile sensation on the surface of a metal workpiece, so that the metal workpiece has better surface appearance and property and can be better applied to the ornamentation of the shell of a digital product.

Description

technical field [0001] The invention relates to the field of metal surface decoration, in particular to a metal surface treatment method. Background technique [0002] In the existing surface decoration technology, the decorative effect of underglaze colored porcelain (such as blue and white porcelain) is generally produced on the surface of sintered ceramics, but due to the thick wall thickness required for ceramic sintering and the factors that are easy to break during use, although Its appearance is very exquisite, but there are many limitations in the process of use. For example, in the shell decoration process of digital products, its processing accuracy and surface performance are difficult to meet its needs. This is the current ceramic shell on the market. One of the reasons why there are fewer digital products. Moreover, the effects of existing underglaze colored porcelain (such as blue and white porcelain) are all made on ceramic porcelain, which is difficult to be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/02
Inventor 高春楠
Owner BYD CO LTD
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