ELECTRO PLATING CHROMIUM AND ITS ALLOYS

    公开(公告)号:KR810001075B1

    公开(公告)日:1981-09-11

    申请号:KR780001649

    申请日:1978-05-31

    Applicant: IBM

    Inventor: MORGAN W BARCLAY D

    Abstract: In a solution for electroplating Cr in which the source of Cr ions is an aqueous equilibrated solution of Cr (III) thiocyanate complex, the improvement comprises a buffer in the solution which provides one of the ligands for the complex. The buffer is an amino acid, peptide, formate, acetate or hypophosphite. Specifically the amino acid is glycine, aspartic acid, arginine or histidine. The deposition of Cr is facilitated at high current densities, both by catalytic effect of the thiocyanate and by the intimate buffering at the cathode by the amino acid released from the Cr atom as it discharges onto the cathode.

    PRINT TYPE CARRIER
    3.
    发明专利

    公开(公告)号:CA927672A

    公开(公告)日:1973-06-05

    申请号:CA73612

    申请日:1970-02-02

    Applicant: IBM

    Abstract: A type carrier comprises a flexible, toothed timing belt having U-shaped type carrier members which are attached to the belt by pins through the legs of each member on either side of a belt tooth and which have flexible supports secured thereto each with a type character at the free end.

    ELECTROPLATING CHROMIUM AND ITS ALLOYS

    公开(公告)号:ZA772051B

    公开(公告)日:1978-11-29

    申请号:ZA772051

    申请日:1977-04-04

    Applicant: IBM

    Inventor: BARCLAY D MORGAN W

    Abstract: A plating solution and method of forming such a solution for plating chromium and its alloys from Cr(III) is disclosed. The solution is an aqueous solution of a chromium(III) thiocyanate complex having at least a ligand other than water or thiocyanate in the inner coordination sphere.

    10.
    发明专利
    未知

    公开(公告)号:BR7800435A

    公开(公告)日:1978-09-26

    申请号:BR7800435

    申请日:1978-01-25

    Applicant: IBM

    Inventor: BARCLAY D MORGAN W

    Abstract: A plating solution and method of forming such a solution for plating chromium and its alloys from Cr(III) is disclosed. The solution is an aqueous solution of a chromium(III) thiocyanate complex having at least a ligand other than water or thiocyanate in the inner coordination sphere.

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