Phosphate Permanganate: A Chrome Free Alternative for Magnesium Pre-treatment
- Prof. Dr.-Ing. K. U. Kainer
Published Online: 15 MAY 2006
DOI: 10.1002/3527607552.ch75
Copyright © 2000 Wiley-VCH Verlag GmbH
Book Title
Magnesium Alloys and their Applications
Additional Information
How to Cite
Skar, J. I. and Albright, D. (2006) Phosphate Permanganate: A Chrome Free Alternative for Magnesium Pre-treatment, in Magnesium Alloys and their Applications (ed K. U. Kainer), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527607552.ch75
Editor Information
GKSS-Forschungszentrum Geesthacht GmbH, Institut für Werkstofforschung, Max-Planck- Straße, D-21502 Geesthacht, Germany
Publication History
- Published Online: 15 MAY 2006
- Published Print: 20 SEP 2000
ISBN Information
Print ISBN: 9783527302826
Online ISBN: 9783527607556
- Summary
- Chapter
Keywords:
- magnesium alloys;
- phosphate permanganate;
- magnesium pre-treatment
Summary
Magnesium die-castings have traditionally been pre-treated for subsequent painting or adhesive bonding with chromate treatment methods. Due to the environmental impact of the hexavalent chromate and the associated restrictions coming up, there is a great need for less harmful treatment methods [1]. One option developed by Hydro Magnesium is phosphate permanganate. Earlier findings have shown that phosphate permanganate gives excellent paint adhesion properties [2, 3]. The recent work has focused on a) identifying the factors having the biggest influence on the quality of the conversion coating, b) bath loading studies and c) verifying that phosphate permanganate is an alternative pre-treatment for adhesive bonding of magnesium die castings. The results from these investigations are presented herein.