High-luster magnesium alloy surface treatment method

A surface treatment and magnesium alloy technology, applied in the field of high gloss magnesium alloy surface treatment, can solve problems such as surface treatment technology, intergranular corrosion, difficult to produce smooth surface, etc.
CN101070601AInactive Publication Date: 2007-11-14ไฝ•้–
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
ไฝ•้–
Publication Date
2007-11-14
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention correlates to an operation method of improving smooth glitter property after dealing with the surface of magnesium alloy. The method first does the preliminary treatment procedure to the surface of magnesium alloy workpiece, and then carries out chemical nickel plating procedure of high adhesiveness to the surface of magnesium alloy. After the procedure of electroplating soft metal to the surface of chemical nickel plating, the procedure is polishing in the surface of soft metal, and then the procedure is electroplating glitter hard metal in the surface of after polishing soft metal, so that it can reach the effect of high smooth glitter property to magnesium alloy workpiece.
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Description

technical field

[0001] The present invention relates to electrochemistry-related electroplating and electroless plating processes and physical grinding and polishing processes, in particular to a process method for improving the flat gloss properties of magnesium alloys after surface treatment, Background technique

[0002] No matter how the blank of the magnesium alloy workpiece is made, its surface is rough and dull, the visible light reflectance rarely exceeds 30%, and the flatness RA value is at least less than 20ฮผm. There are three main reasons: one is that the thermal expansion coefficient of the magnesium alloy is too large, generally exceeding 20 ฮผm / m / โ„ƒ, and shrinkage streaks are inevitably produced during the thermoforming process. The second is that most magnesium alloys exist in the hexagonal closest-packed crystal form, and the sliding direction to be deformed in the solid state is very limited. During the cold forming process, slipbands and twin crystal structur...

Claims

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