公开(公告)号：US3811959A

公开(公告)日：1974-05-21

申请号：US28338072

申请日：1972-08-24

Applicant: CHROMALLOY AMERICAN CORP

Inventor： WEINSTEIN M ,  SPEIRS K ,  BAER R

IPC: C23C10/60 ,  C23C22/74 ,  B32B15/18

CPC classification number: C23C10/60 ,  C23C22/74

Abstract: AND CURED IN SITU TO FURTHER ENHANCE THE RESISTANCE TO CORROSION.

FERROUS METAL ARTICLES ARE PROVIDED HAVING IMPROVED RESISTANCE TO CORROSION IN HIGHLY SALINE AND/OR MARINE ATMOSPHRES, THE ARTICLES BEING CHARACTERIZED BY A PROTECTIVE DUPLEX COATING COMPRISED OF A SACRIFICAL THERMALLY ALUMINIZED FERROUS METAL SURFACE IN A COMBINATION WITH A SPECIAL BARRIER TYPE NON-METALLIC OVERCOAT. ONE METHOD OF PROVIDING THE FOREGOING SYSTEM IS TO APPLY AN ADHERENT LAYER FROM A LIQUID OF A SOLUBLE SILICATE SALT OR COMPOUND ONTO A THERMALLY ALUMINIZED LAYER, THE SILICATE LYER BEING PREFERABLY THEREAFTER CURED. IN A PREFERRED EMBODIMENT, A CONVERSION COATING IS APPLIED TO THE SILICATE LAYER

公开(公告)号：US3729295A

公开(公告)日：1973-04-24

申请号：US3729295D

申请日：1971-05-17

Applicant: CHROMALLOY AMERICAN CORP

Inventor： WEINSTEIN M ,  SPEIRS K ,  BAER R

IPC: C23C10/60 ,  C23C22/74 ,  B32B15/18

CPC classification number: C23C10/60 ,  C23C22/74 ,  Y10S428/933 ,  Y10S428/935 ,  Y10T428/12556 ,  Y10T428/12583 ,  Y10T428/12757 ,  Y10T428/12958 ,  Y10T428/12986

Abstract: FERROUS METAL ARTICLES ARE PROVIDED HAVING IMPROVED RESISTANCE TO CORROSION IN HIGHLY SALINE AND/OR MARINE ATMOSPHERES, THE ARTICLES BEING CHARACTERIZED BY A PROTECTIVE DEPLEX COATING COMPRISED OF A SACRIFICIAL THERMALLY ALUMINIZED FERROUS METAL SURFACE IN A COMBINATION WITH A SPECIAL BARRIER TYPE NON-METALLIC OVERCOAT. ONE METHOD OF PROVIDING THE FOREGOING SYSTEM IS TO APPLY AN ADHERENT LAYER FROM A LIQUID OF A SOLUBLE SLICATE SALT OR COMPOUND ONTO A THERMALLY ALUMINIZED LAYER, THE SILICATE LAYER BEING PREFERABLY THEREAFTER CURED. IN A PEFERRED EMBODIMENT. A CONVERSION COATING IS APPLIED TO THE SILICATE LAYER AND CURED IN SITU TO FURTHER ENHANCE THE RESISTANCE TO CORROSION.