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Electrochemical polishing solution suitable for 3D printing of titanium alloy

A 3D printing and electrochemical technology, applied in the field of metal surface treatment, to achieve the effect of simple formula, good solubility and low corrosion

Inactive Publication Date: 2020-11-13
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a polishing solution suitable for 3D printing titanium alloys to solve the problem of surface quality of titanium alloys manufactured by 3D printing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: Perform electrochemical polishing on a 3D printed TC4 titanium alloy with a size of 10mm×10mm×5mm

[0029] The composition of the polishing liquid: 75g / L potassium chloride, 5% perchloric acid, 55g / L citric acid, 35% ethylene glycol, 5-9g additives, and deionized water as the balance.

[0030] A described electrochemical polishing solution suitable for 3D printing titanium alloys comprises the following steps:

[0031] S1. Weighing: Weigh potassium chloride, perchloric acid, citric acid, ethylene glycol, deionized water and additives in equal proportions;

[0032] S2, dissolving: the solid powders of potassium chloride, citric acid and additives are respectively placed in deionized water for dissolving to prepare solution A;

[0033] S3. Stirring: Slowly pour ethylene glycol into the container to stir evenly, then slowly add solution A and keep stirring;

[0034] S4. Preparation: Slowly add perchloric acid to the above solution and stir for 25 minutes to ob...

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PUM

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Abstract

The invention discloses an electrochemical polishing solution suitable for 3D printing of titanium alloy, and belongs to the polishing technology. The electrolyte is formed by mixing potassium chloride, perchloric acid, citric acid, ethylene glycol, deionized water and an additive, and comprises the following components of, 40%-120 g / L of sodium chloride, 1%-10% of perchloric acid, 25-80 g / L of citric acid, 25%-40% of ethylene glycol, 2-10 g of an additive and the balance deionized water. The electrochemical polishing solution is mild in formula component, environmentally friendly, economical,simple, stable in performance, capable of being recycled under the condition that mother liquor is supplemented, high in cost performance, small in harm to the human body, environmentally friendly, low in corrosion to workpiece equipment, free of extreme temperature or voltage and current and the like and suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical category of metal surface treatment and relates to an electrochemical polishing solution suitable for 3D printing titanium alloys. Background technique [0002] Titanium alloy materials are widely used because of their excellent structural stability, high strength, low density and many other excellent properties. Compared with traditionally processed materials, titanium alloy materials produced by 3D printing technology are inferior in mechanical properties such as elongation and yield strength, which makes 3D printed titanium alloy materials have been used in medicine, archaeology, and industry. , aerospace and other fields to manufacture human organ prosthetics, cochlea, artificial heart, restoration of cultural relics, components with complex and precise structures, etc. These applications have high requirements on the surface quality of titanium and titanium alloys, so how to produce titanium and titanium all...

Claims

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Application Information

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IPC IPC(8): C25F3/26
CPCC25F3/26
Inventor 王毅闻家成刘壮壮索文华王善飞
Owner BEIJING UNIV OF TECH
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