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A kind of method of titanium alloy electrolytic polishing

An electrolytic polishing, titanium alloy technology, applied in the field of titanium and titanium alloy metal surface treatment, can solve the problems of large environmental pollution, complex electrolyte composition, containing harmful substances, etc., to overcome harmful substances, easy process control, simple process. Effect

Active Publication Date: 2017-12-01
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its electrolyte composition is complex, contains harmful substances, and causes great environmental pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] At room temperature, TA1 with a size of 10 mm × 10 mm × 0.2 mm was successively placed in absolute ethanol solution for ultrasonic cleaning, treated for 30 min, taken out, and then cleaned with deionized water for later use.

[0015] In 1 liter of deionized water, 10 grams of sodium tartrate powder was added, the solution was heated to 50 degrees Celsius, subjected to electromagnetic stirring for 20 minutes, and then cooled to room temperature to prepare an electrolytic polishing solution. After the titanium alloy sample is degreased on the surface, it is placed in the sodium tartrate electrolytic polishing solution; the titanium alloy sample is connected to the cathode of the DC power supply, the graphite plate is the anode, and the distance between the cathode and the anode is 5 cm; the power is turned on, and the voltage is 5 V , Take it out after 3 minutes of power treatment. The titanium alloy sample after the electropolishing treatment is cleaned with deionized wa...

Embodiment 2

[0017] At room temperature, the TA1 samples with a size of 10 mm × 10 mm × 0.2 mm were placed in absolute ethanol solution for ultrasonic cleaning, treated for 30 min, taken out, and then cleaned with deionized water for later use.

[0018] In 1 liter of deionized water, add 50 grams of sodium tartrate powder, heat the solution to 70 degrees Celsius, and cool it to room temperature after electromagnetic stirring for 10 minutes; TA1 sample is placed in sodium tartrate electrolytic polishing solution, and connected to DC power cathode, graphite The plate is the anode, and the distance between the cathode and the anode is 10 cm. Turn on the power supply, adjust the voltage to 15 V, and take it out after 10 minutes of power-on treatment. The TA1 sample after the electropolishing treatment was cleaned with deionized water and absolute ethanol to complete the electrolytic polishing treatment on the surface of the titanium alloy to obtain a smooth surface.

Embodiment 3

[0020] At room temperature, the TC4 sample with a size of 10 mm × 10 mm × 0.2 mm was ultrasonically cleaned.

[0021] In 1 liter of deionized water, add 30 grams of sodium tartrate powder, heat to 60 degrees, electromagnetically stir for 15 minutes and then cool to room temperature. The TC4 sample was placed in sodium tartrate electrolytic polishing solution, and connected to the cathode of a DC power supply, and the graphite plate was used as the anode, with a distance of 8 cm between them. Turn on the power, the voltage is 10 V, take it out after 5 minutes of power-on treatment, clean it with deionized water and absolute ethanol, and complete the electrolytic polishing treatment on the surface of the titanium alloy to obtain a smooth surface.

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Abstract

The invention discloses an electrolytic polishing method for titanium alloy. The electrolytic polishing method is used for electrolytic polishing treatment of titanium alloy surfaces. The electrolytic polishing method adopting neutral electrolysis and liquefaction for the titanium alloy aims to overcome the shortcomings that existing electrolytic polishing solutions of the titanium alloy contain hazardous substances and pollute the environment. According to the electrolytic polishing method, deionized aqueous solutions of sodium tartrate are adopted as electrolytic polishing solutions, and the bright and clean titanium alloy surfaces can be obtained by controlling the concentration of the electrolytic polishing solutions, the polishing voltage and the polishing time.

Description

technical field [0001] The invention relates to a titanium alloy electrolytic polishing method, in particular to a green and environment-friendly titanium alloy electrolytic polishing method using sodium tartrate solution, belonging to the technical field of titanium and titanium alloy metal surface treatment. Background technique [0002] Titanium is a very abundant element in the earth's crust, ranking fourth. It has low density, high specific strength, good heat and corrosion resistance, and is a very good heat-strength alloy material. The linear expansion coefficient of titanium is small, and the thermal stress generated during heating and cooling is small, and its mechanical properties and mechanics Good performance, strong machinability and other characteristics, it is an excellent structural material, so it has been widely used in aerospace, chemical industry, metallurgy, instrumentation and other fields. [0003] Titanium and titanium alloys also have some inherent ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25F3/26
CPCC25F3/26
Inventor 詹肇麟赵茹英杨艳蓉甫阳灵付天琳于晓华刘忠李莉
Owner KUNMING UNIV OF SCI & TECH
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