Invention Grant
US3679381A Novel composite 失效
新型复合材料

Novel composite
Abstract:
THIS INVENTION RELATES TO NEW PROCESSES AND TO A NOVEL CORROSION RESISTANT BRIGHT DECORATIVE CHROMIUM COMPOSITE METAL COATED ARTICLE COMPRISING: (1) A FIRST LAYER OF COPPER; (2) A SECOND THIN LAYER OF BRIGHT COBALT THEREON; (3) A THIRD THIN LAYER CONTAINING NICKEL HAVING A THICKNESS OF 2-12 MICRONS; AND (4) A FOURTH LAYER OF BRIGHT DECORATIVE CHROMIUM ON SAID THIRD NICKEL-CONTAINING LAYER TO FORM AN ARTICLE BEARING A CORROSION RESISTANT BRIGHT DECORATIVE CHROMIUM SURFACE.
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