公开(公告)号：US3897222A

公开(公告)日：1975-07-29

申请号：US39857873

申请日：1973-09-19

Applicant: STANDARD PRESSED STEEL CO

Inventor： HOOD ANDREW CRAIG

IPC: B23Q1/70 ,  C23C22/74 ,  F16C32/06 ,  B32B15/00 ,  C23B5/04

CPC classification number: B23Q1/70 ,  C23C22/74 ,  C23C28/00 ,  Y10S428/933 ,  Y10S428/935 ,  Y10S428/941 ,  Y10T428/12083 ,  Y10T428/12118 ,  Y10T428/1275 ,  Y10T428/12937 ,  Y10T428/12944 ,  Y10T428/12972 ,  Y10T428/12986

Abstract: Articles of ferrous metal protectively coated with a layer of a metal more noble than the ferrous metal and with an electricallyconductive overlayer formed by drying and heat curing to water insolubility a composition comprising aluminum powder in an aqueous solution of a combination of phosphoric acid, chromic acid, or molybdic acid, or metal salts of said acids.

Abstract translation: 黑色金属的物品被保护地涂覆有比黑色金属更贵的金属层，并且通过干燥和加热固化成水不溶性形成的导电覆盖层，该组合物包含磷酸， 铬酸或钼酸，或所述酸的金属盐。