A kind of oxidation coloring method of titanium material

Abstract

The invention provides a method for oxidation and coloring of titanium materials, comprising step 1: mechanical polishing and degreasing treatment on the surface of titanium materials; step 2: placing titanium materials in an electrolytic cell for anodic oxidation treatment, and generating oxides on the surface of titanium materials Thin film, take out the titanium material and clean the electrolyte on the surface; step 3: put the titanium material in the hydrogen peroxide solution and decoct to seal the pores of the oxide film. The specific steps of anodic oxidation in step 2 are: a. Coating a layer of electrolyte on the surface of the titanium material, placing the titanium material obliquely into the electrolyte of the electrolytic cell; b. Connecting the power supply to perform an electrochemical reaction to produce oxides Thin film; turn off the power supply, carry out chemical reaction to form small holes on the oxide film, turn on the heating device and the stirring device while turning off the power supply; c, repeat step b to turn on the power supply and disconnect the power supply, so that the surface of the titanium material is electrochemically The reaction produces stable oxide film formation. The invention has the characteristics of simple method and good uniformity of the oxide film on the surface of the titanium material.

Description

technical field [0001] The invention relates to the technical field of oxidation coloring of metal materials, in particular to a method for oxidation coloring of titanium materials. Background technique [0002] The abundance of titanium in the bottom shell is 0.56%, and the abundance of ammonia ranks ninth. my country's titanium resource reserves are quite rich. Metal titanium has two allotropic crystal forms, low temperature (<882.5 ℃) is stable as α type, close-packed hexagonal system; high temperature (>882.5 ℃) is stable as β type, body centered cubic system. [0003] Due to its excellent corrosion resistance, heat resistance and portability, titanium has been widely used in aerospace, chemical and pharmaceutical, military industry, shipbuilding and papermaking, medical equipment and other fields. After the titanium material is oxidized, a layer of oxide film will be formed on the surface of the titanium material, and the oxide film can make the titanium material...

AI Technical Summary

Problems solved by technology

[0004] At present, there are many researches on the oxidation and coloring process of titanium materials, such as atmospheric oxidation method, anodic oxidation method, chemical treatment method, etc., but in the oxidation process of titanium materials, the control of process parameters is not ideal or the ratio of oxidation reaction solution is different. , the thickness of the oxide film will be uneven, and the color will be messy after lighting, which will not only fail to achieve the effect of decoration and beautification, but will uglify the object to be decorated