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Heterogeneous material same-tank micro-arc oxidation electrolyte

A technology of micro-arc oxidation and heterogeneous materials, applied in electrolytic coatings, anodic oxidation, surface reaction electrolytic coatings, etc., can solve the problem that metals cannot be micro-arc oxidation at the same time, so as to improve the efficiency of micro-arc oxidation and reduce the occurrence of micro-arc oxidation. Difference in arc voltage, effect of increasing viscosity

Inactive Publication Date: 2020-04-07
山西银光华盛镁业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problem that different metals cannot be subjected to micro-arc oxidation at the same time

Method used

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  • Heterogeneous material same-tank micro-arc oxidation electrolyte

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] An electrolyte solution for micro-arc oxidation of magnesium and aluminum alloy materials in the same tank. Triol 1g / L.

[0016] Dissolve the analytical grades of the various raw materials in deionized water and stir, and obtain the electrolyte solution after the solution is clarified.

[0017] Afterwards, after the magnesium and aluminum alloy heterogeneous material metal parts to be treated are connected to the anode of the MAO power supply, they are immersed in the configured electrolyte, and at the same time, the electric parameter curve is used for micro-arc oxidation treatment. The treated heterogeneous metal materials are as follows: figure 1 shown.

Embodiment 2

[0019] An electrolyte solution for micro-arc oxidation of magnesium, titanium, and aluminum alloy materials in the same tank, with a total volume of 1L, in which the raw materials are composed of: sodium hydroxide 4.6g / L, sodium hexametaphosphate 5.5g / L, sodium fluoride 4.5g / L, glycerin 0.8g / L.

[0020] Dissolve the analytical grades of the various raw materials in deionized water and stir, and obtain the electrolyte solution after the solution is clarified.

[0021] Afterwards, after the magnesium and aluminum alloy heterogeneous material metal parts to be treated are connected to the anode of the MAO power supply, they are immersed in the prepared electrolyte solution, and at the same time, the micro-arc oxidation treatment is performed using the electric parameter curve.

Embodiment 3

[0023] An electrolyte solution for micro-arc oxidation of titanium and aluminum alloy materials in the same tank. Alcohol 1.2g / L.

[0024] Dissolve the analytical grades of the various raw materials in deionized water and stir, and obtain the electrolyte solution after the solution is clarified.

[0025] Afterwards, after the magnesium and aluminum alloy heterogeneous material metal parts to be treated are connected to the anode of the MAO power supply, they are immersed in the prepared electrolyte solution, and at the same time, the micro-arc oxidation treatment is performed using the electric parameter curve.

[0026] In the above-mentioned embodiment, the electrolytic solution with a specific composition is used to realize micro-arc oxidation of metals of different materials in the same tank, and sodium hydroxide provides an alkaline environment. Except for aluminum alloys, magnesium alloys and titanium alloys will not react with sodium hydroxide. reaction, so the treatmen...

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Abstract

The invention discloses a heterogeneous material same-tank micro-arc oxidation electrolyte, and relates to the technical field of metal material surface treatment. In order to solve the problem that different metals cannot be subjected to micro-arc oxidation at the same time, the invention adopts the technical scheme that the electrolyte comprises the following raw materials: 2-5g / L of sodium hydroxide, 5-10g / L of sodium hexametaphosphate, 4-6g / L of sodium fluoride and 0.8-1.2 g / L of glycerol. The electrolyte with specific components is adopted, so that same-tank micro-arc oxidation of different metal materials is achieved, the difference of arcing voltages of different kinds of metals is reduced, and the difference of the thicknesses of micro-arc oxidation film layers of different kinds of metals is reduced. The electrolyte disclosed by the invention can be used for simultaneously treating micro-arc oxidation of magnesium, aluminum and titanium, so that micro-arc oxidation layers arecompletely formed from the three metals at one time, and the micro-arc oxidation efficiency of the surfaces of different metal materials is improved.

Description

technical field [0001] The invention relates to the technical field of metal material surface treatment, in particular to an electrolytic solution for micro-arc oxidation of heterogeneous materials in the same tank. Background technique [0002] Micro-arc oxidation, also known as micro-plasma oxidation, is a combination of electrolyte and corresponding electrical parameters, on the surface of aluminum, magnesium, titanium, zirconium, thallium and other metals and their alloys, relying on the instantaneous high temperature and high pressure generated by arc discharge to grow Ceramic film layer mainly composed of matrix metal oxide. The micro-arc oxidation process introduces the working area from the Faraday area of ​​ordinary anodization to the high-voltage discharge area, which overcomes the defects of hard anodization and greatly improves the comprehensive performance of the film layer. The micro-arc oxidation film layer is firmly combined with the substrate, has a dense s...

Claims

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Application Information

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IPC IPC(8): C25D11/26C25D11/30C25D11/06
CPCC25D11/026C25D11/06C25D11/26C25D11/30
Inventor 赵李斌赵韩欣张红芳
Owner 山西银光华盛镁业股份有限公司