Ion liquid polishing solution for electrochemically polishing magnesium alloy and preparation method thereof

A technology of ionic liquid and magnesium alloy, which is applied in the field of electrochemical polishing, can solve the problems of short life of polishing liquid, high operating cost, pitting corrosion, etc., and achieve the effect of low price, no environmental pollution, and good thermal stability

A technology of ionic liquid and magnesium alloy, which is applied in the field of electrochemical polishing, can solve the problems of short life of polishing liquid, high operating cost, pitting corrosion, etc., and achieve the effect of low price, no environmental pollution, and good thermal stability

CN102337580AInactive Publication Date: 2012-02-01合肥金盟工贸有限公司
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] An ionic liquid polishing solution for electrochemically polishing magnesium alloys, which is prepared by mass percentage of the following raw materials: 42% choline chloride, 50% urea, 5% thiourea leveling agent, 3.75% tartaric acid corrosion inhibitor %, glucose brightener 0.25%.

[0023] Preparation method: put choline chloride and urea in a container and heat magnetically in an oil bath at 75-85°C to form a colorless and transparent solution, then add thiourea leveling agent, tartaric acid corrosion inhibitor and glucose light agent, continue to ensure that the magnetic stirring is heated in an oil bath at 75-85°C until it is stirred into a colorless and transparent solution, and the finished polishing solution is obtained.

[0024] Polishing test: Before the test, first set the process parameters of electrochemical polishing as follows: pulse constant potential mode, duty ratio 5:1, pulse period 120s, temperature 65°C, voltage 8.0 V, maximum current density 10 mA / c...

Embodiment 2

[0026] An ionic liquid polishing solution for electrochemically polishing magnesium alloys, which is prepared by mass percentage of the following raw materials: choline chloride 42%, urea 50%, thiourea leveling agent 4%, tartaric acid corrosion inhibitor 3.5% %, glucose brightener 0.5%.

[0027] The preparation method is the same as in Example 1.

[0028] The polishing test was the same as in Example 1, and the surface of the electrochemically polished magnesium alloy was bright and free of pitting.

Embodiment 3

[0030] An ionic liquid polishing solution for electrochemically polishing magnesium alloys, which is prepared by mass percentage from the following raw materials: choline chloride 42%, urea 50%, thiourea leveler 3%, tartaric acid corrosion inhibitor 4 %, glucose brightener 1%.

[0031] The preparation method is the same as in Example 1.

[0032] The polishing test was the same as in Example 1, and the surface of the electrochemically polished magnesium alloy was bright and free of pitting.

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Abstract

The invention discloses an ion liquid polishing solution for electrochemically polishing magnesium alloy, which is prepared from the following raw materials in percentage by mass: 88-96% of depth eutectic ion liquid and 4-12% of additives. The polishing solution can be used for well polishing and leveling the magnesium alloy to achieve an effect of high brightness; besides, the magnesium alloy is environmental-friendly, naturally degradable and pollution-free.

Description

[0001] technical field [0002] The invention relates to the field of electrochemical polishing, in particular to an ionic liquid polishing solution for electrochemically polishing magnesium alloys and a preparation method thereof. Background technique [0003] Magnesium alloy has the advantages of good thermal conductivity, excellent anti-magnetic ability and easy recycling. It is one of the light-weight and high-strength materials with the most development and application potential. It has extremely broad application prospects in many fields such as aviation, electronics, and automobiles. . However, the chemical properties of magnesium alloy are extremely active, and it is particularly easy to react with water and be corroded. This is the key issue hindering its widespread application. [0004] When processing and manufacturing magnesium alloy workpieces, in order to meet the requirements for surface brightness or precision of the workpiece, it is usually necessary to po...

Claims

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Application Information

Patent Timeline
01 Feb 2012
Publication
CN102337580A
IPC
C25F3/18
Inventors
孙皋飞; 时康