| 摘要 |
Chromate-free and metal phosphate free treatments and compositions for aPPlying a conversion or passivation coating for metals, more particularly, steel, zinc coated steel, and aluminum surfaces. The methods of the invention comprise contacting the requisite metal surface with a treatment composition comprising a member or members comprising one or more Group IV B elements, fluoride, and a phosphonic acid or phosphonate. Optionally, a silane may be added as a treatment component . |
| 申请人 |
GENERAL ELECTRIC COMPANY;RODZEWICH, EDWARD, A.;MELZER, JEFFREY, I.;DECK, PHILIP, D.;WHISENHUNT, DONALD, W., JR,;CAREY, WILLIAM, S.;ENGEL, DAVIDL, B.;CHISHOLM, BRET;CARTER, CHRISTOPHER, M. |
发明人 |
RODZEWICH, EDWARD, A.;MELZER, JEFFREY, I.;DECK, PHILIP, D.;WHISENHUNT, DONALD, W., JR,;CAREY, WILLIAM, S.;ENGEL, DAVIDL, B.;CHISHOLM, BRET;CARTER, CHRISTOPHER, M. |
