Patents for C23D 3 - Chemical treatment of the metal surfaces prior to coating (148) | |
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04/1999 | |
04/15/1999 | DE19745162A1 Pretreating workpiece in an electrophoretic dip enameling process activating bath |
11/1998 | |
11/11/1998 | CN1198368A Surface treatment method, decorative article and electronics device |
09/1998 | |
09/23/1998 | EP0866147A1 Process for manufacturing an object made from a steel sheet and enameled in direct mode |
09/21/1998 | CA2234433A1 Process for direct preparation of objects made out of enamelled sheet steel |
07/1998 | |
07/15/1998 | EP0853141A2 Method for surface treatment, an ornament and a device |
06/1998 | |
06/16/1998 | US5766374 Sequentially forming a steel sheet, pickling, amorphous phosphatizing, nickel plating and enameling; antisludge agents; bonding strength |
11/1997 | |
11/20/1997 | DE19715408A1 Pretreating metallic parts before deep drawing |
11/18/1997 | US5688340 Preparation of metal surfaces for vitreous enameling |
04/1997 | |
04/02/1997 | EP0765952A1 Process for preparing the metallic surface of an object, especially a steel sheet, for a direct enamelling |
03/1997 | |
03/29/1997 | CA2186327A1 Process for the metallic surface treatment of an article, particularly stainless steel sheet article, for direct mode enamelling |
09/1996 | |
09/12/1996 | WO1996027694A1 Member having composite coating and process for producing the same |
02/1996 | |
02/28/1996 | EP0698675A1 Preparing metal surfaces for enamelling |
11/1995 | |
11/02/1995 | DE19515425A1 Water storage tank with reduced faults in the enamelling without cost increase. |
10/1995 | |
10/04/1995 | EP0434849B1 Method of producing steel sheets for porcelain enamelling having improved enamel adhesion property |
05/1995 | |
05/03/1995 | CN1102221A Oil-firing pretreatment process for enamelling |
04/1995 | |
04/19/1995 | EP0648863A1 Enamellable oxide layer |
03/1995 | |
03/01/1995 | EP0640697A1 Water tank and procedure for its fabrication |
08/1994 | |
08/24/1994 | EP0611834A1 Aluminium based substrate for enamelling |
02/1993 | |
02/17/1993 | CN1069078A Anticorrosive technology for ferrous metal surface |
12/1992 | |
12/01/1992 | US5167988 For use in exhaust systems of internal engines |
10/1992 | |
10/06/1992 | US5152846 Hot and cold rolling to recrystallization annealing |
07/1991 | |
07/03/1991 | EP0434849A1 Method of producing steel sheets for porcelain enamelling having improved enamel adhesion property |
01/1991 | |
01/20/1991 | WO1991001390A1 Method of manufacturing enameling steel sheet excellent in adhesiveness |
01/20/1991 | CA2036374A1 Method of producing steel sheets for porcelain enameling having improved enamel adhesion property |
11/1990 | |
11/29/1990 | DE3917596A1 Forming stable oxide intermediate layer on titanium - to be coated with ceramic by heating with slip contg. antimony oxide |
02/1990 | |
02/14/1990 | CN1039677A Process for continuously enamelling wire of aluminium alloy which are intended for production of electrical coils |
02/07/1990 | EP0354132A1 Process for continuously enamelling pieces made of an aluminium alloy for making electrical windings |
07/1989 | |
07/05/1989 | CN2040497U Enamel container |
05/1988 | |
05/24/1988 | US4746533 Process for coating a metallic surface with a vitreous enamel |
04/1988 | |
04/26/1988 | US4740388 Painting method by spraying glassy material |
01/1986 | |
01/28/1986 | US4567067 Deposition of nickel sulfate to improve adhesion |
06/1983 | |
06/22/1983 | EP0081847A1 Enameling process |
09/1982 | |
09/01/1982 | EP0059023A1 Process for improving the corrosion resistance of a ferrous metal body |
05/1980 | |
05/27/1980 | US4204931 Zinc, dentistry |
08/1979 | |
08/07/1979 | CA1059881A1 Formation of nickel phosphate coatings on iron or steel |
03/1979 | |
03/27/1979 | CA1051371A1 Direct-on ceramic coating of carbon-rich iron |
02/1979 | |
02/20/1979 | CA1048871A1 Process of treating sheet steel |
10/1978 | |
10/24/1978 | US4121979 Metal treatment |
12/1977 | |
12/20/1977 | US4063968 Formation of nickel phosphate coatings on iron or steel |
09/1977 | |
09/06/1977 | US4046646 Activation bath containing metal salt nobler than iron, galvanizing bath containing zinc salt |
03/1977 | |
03/15/1977 | US4012239 Process for treating steel sheets for the purpose of enamelling the sheets |
09/1976 | |
09/28/1976 | US3983274 Aluminum-copper-nickel alloy for the production of heat resistant pans and utensils coated with enamels and/or other non-metallic materials and corresponding aluminous metal articles |
07/1976 | |
07/27/1976 | US3971120 Direct-on ceramic coating of carbon-rich iron |
06/1976 | |
06/08/1976 | US3962490 Preparation of nickel and chromium substrates for ceramic coating |
05/1976 | |
05/18/1976 | US3957669 Benzene sulphinic acid as etchant |
05/11/1976 | US3956536 Degreasing, pickling, nickel plating |
02/1976 | |
02/17/1976 | US3939295 Protective coatings and frits therefor |
01/1976 | |
01/13/1976 | US3932237 Method for forming an insulating glass film on surfaces of an oriented silicon steel sheet |
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