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Machine translation
1. (WO1982000160) METHOD OF PRODUCING CONVERSION COATINGS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1982/000160    International Application No.:    PCT/GB1981/000119
Publication Date: 21.01.1982 International Filing Date: 01.07.1981
IPC:
C23C 22/34 (2006.01), C23C 22/48 (2006.01)
Applicants: BNF METALS TECHNOLOGY CENTRE (For All Designated States Except US).
WARD, John, Joseph, Bernard; (For US Only).
BARNES, Clive; (For US Only)
Inventors: WARD, John, Joseph, Bernard; .
BARNES, Clive;
Priority Data:
Title (EN) METHOD OF PRODUCING CONVERSION COATINGS
(FR) PROCEDE DE PRODUCTION DE REVETEMENTS DE CONVERSION
Abstract: front page image
(EN)Conversion coatings of the hydrated metal oxide type are deposited on a substrate of Al, Mg, Sn or Zn or their alloys, from an aqueous solution of AlIII having a pH of 1.5 to 5.5 and containing NO3-. The coating produced is of hydrated aluminium oxide. Conversion coatings having further enhanced corrosion resistance are produced from solutions which include borate and have pH's in the range of 4 to 5.5.
(FR)Des revetements de conversion du type a oxyde metallique hydrate sont deposes sur un substrat de Al, Mg, Sn ou Zn ou d'un alliage de ces metaux, a partir d'une solution aqueuse de AlIII possedant un pH de 1,5 a 5,5 et contenant du NO3-. Le revetement produit est un oxyde d'aluminium hydrate. Des revetements de conversion possedant une resistance a la corrosion encore amelioree sont produits a partir de solutions comprenant du borate et possedant des pH allant de 4 a 5,5.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)