Paint & Coatings Industry >

2006 , Vol. 36 >Issue 4: 57 - 60

DOI: https://doi.org/10.12020/j.issn.0253-4312.2006.04.57

Study of Phosphating Process of Magnesium Alloy and the Performance of the Coatings Film on It

  • Lan Wei1 ,
  • Qin Qibin2 ,
  • Zhou Anruo1 ,
  • Qiu Huidong1 ,
  • Sun Jianchun1
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  • 1. Chongqing University of Science and Technology, 400050; 2. Shanghai Changfeng Chemicals, 200062

Online published: 2019-01-24

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Abstract

The formation procese, technology and formalation of the phosphating on AZ31m agnesium a-lloy are deseribed. Themechanism of crystal growth of phospheric ion and zincion around cathod, then spreaded onto the surface of alloy is proposed. Therefore a four-coat coatings system is desighed, which is tested as well. It has shown that the adhesion reaches grade 1and 400 h salt spray reaches grade 2. It is indicated that the phosphating film can effective ly improve the adhesion of orgamic coatings on Mg alloy and the corrosion resistance.

Key words： magnesium alloy; phosphating painting; coatingm ethod; corrosion resistance

Cite this article

Lan Wei1 , Qin Qibin2 , Zhou Anruo1 , Qiu Huidong1 , Sun Jianchun1 . Study of Phosphating Process of Magnesium Alloy and the Performance of the Coatings Film on It[J]. Paint & Coatings Industry, 2006 , 36(4) : 57 -60 . DOI: 10.12020/j.issn.0253-4312.2006.04.57

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