Slotless micro-arc oxidation treatment technology and movable type device of magnesium alloy
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A technology of micro-arc oxidation and treatment process, which is applied in the direction of anodic oxidation, electrolytic coating, surface reaction electrolytic coating, etc., which can solve the problems of inflexible micro-arc oxidation treatment device and cumbersome treatment methods, and achieve increased portability and electrolytic effect Good, Simple Ingredients Effect
Inactive Publication Date: 2017-06-23
苏连明
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[0010] The purpose of the present invention is to provide a micro-arc oxidation treatment process and equipment to solve the problems that the existing micro-arc oxidation treatment device is not flexible and the treatment method is cumbersome
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Embodiment 1
[0038] see figure 1 , a kind of mobile magnesium alloy grooveless micro-arc oxidation processing equipment provided by the present invention, comprising: a power supply 1; The clamping of the workpiece 100 forms a conductive connection; one end of the negative power supply line 3 is connected to the negative pole 12 of the power supply 1, and the other end is provided with a clamping part 31; The clamping portion 31 is conductively connected, and the other end is sleeved with an electrolyte adsorption sleeve 41 for absorbing the electrolyte.
[0039] In addition, the electrolyte adsorption sleeve 41 is a fabric.
[0040] A mobile grooveless micro-arc oxidation treatment process for magnesium alloys provided by the present invention comprises the following steps:
[0041] 1) Take a magnesium alloy workpiece 100 to be processed, and perform pre-treatments such as welding, grinding and smoothing, and the operator wears goggles and rubber gloves;
[0042] 2) Conductively connec...
Embodiment 2
[0048] The electrolyte solution in step 3) includes the following components by weight percentage: KOH: 10wt%, KF: 8wt%, the rest is water, the temperature of the electrolyte is 0°C, the power-on time is 3 seconds, the voltage is 200V, and the current is 5A / square decimeter.
[0049] All the other are with embodiment 1.
Embodiment 3
[0051] The electrolyte solution in step 3) includes the following components by weight percentage: KOH: 7wt%, KF: 10wt%, the rest is water, the temperature of the electrolyte is 20°C, the power-on time is 4 seconds, the voltage is 220V, and the current is 8A / square decimeter.
[0052] All the other are with embodiment 1.
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Abstract
The invention discloses a mobile magnesium alloy grooveless micro-arc oxidation treatment process and equipment. The process includes the following steps: 1) taking a magnesium alloy workpiece to be processed and performing pretreatment; 2) connecting one end of the magnesium alloy workpiece with a power supply 3) Take an electrode, one end is conductively connected to the negative electrode of the power supply, and the other end absorbs the electrolyte; 4) Turn on the power supply, press the end of the electrode that absorbs the electrolyte on the surface of the magnesium alloy workpiece, move this end, and place it on the magnesium alloy workpiece A layer of oxide film is formed on the surface; 5) The magnesium alloy workpiece and electrodes after step 4) are rinsed with water, wiped dry, and blown dry to perform subsequent painting operations. For the repair of magnesium alloy auto parts, frame, etc., the treatment process uses a portable power supply, equipped with self-developed precision electrodes and electrolytes, and directly performs a slotless local micro-arc oxidation treatment of magnesium alloys. The treatment process is simple and the treatment The device is flexible and portable, and can repair the worn magnesium alloy surface at any time.
Description
technical field [0001] The invention relates to the technical field of magnesium alloy surface treatment, in particular to a mobile grooveless micro-arc oxidation treatment process and equipment for magnesium alloys. Background technique [0002] As a rapidly developing green and environmentally friendly alloy material, magnesium alloy has small specific gravity, high specific strength and specific stiffness, easy cutting and forming, good thermal and electrical conductivity, and good damping and shock absorption and electromagnetic shielding performance. , communication and aerospace and other fields of choice. The electrode potential of magnesium is very low (-2.36V), and it is susceptible to corrosion in most medium environments. Therefore, the corrosion problem of magnesium alloys restricts the wide application and industrialization of magnesium alloys. [0003] Magnesium alloys must undergo chemical or electrochemical oxidation treatment before painting, otherwise the ...
Claims
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