GB809312A - Electrodeposition of zinc on magnesium and its alloys - Google Patents

Electrodeposition of zinc on magnesium and its alloys

Info

Publication number
GB809312A
GB809312A GB11559/57A GB1155957A GB809312A GB 809312 A GB809312 A GB 809312A GB 11559/57 A GB11559/57 A GB 11559/57A GB 1155957 A GB1155957 A GB 1155957A GB 809312 A GB809312 A GB 809312A
Authority
GB
United Kingdom
Prior art keywords
per cent
aqueous
zinc
immersion
weight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB11559/57A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Publication of GB809312A publication Critical patent/GB809312A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/34—Pretreatment of metallic surfaces to be electroplated
    • C25D5/42—Pretreatment of metallic surfaces to be electroplated of light metals
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/22—Electroplating: Baths therefor from solutions of zinc
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/10—Electroplating with more than one layer of the same or of different metals
    • C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
    • C25D5/14—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium two or more layers being of nickel or chromium, e.g. duplex or triplex layers
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/60—Electroplating characterised by the structure or texture of the layers
    • C25D5/605—Surface topography of the layers, e.g. rough, dendritic or nodular layers
    • C25D5/611—Smooth layers
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/627—Electroplating characterised by the visual appearance of the layers, e.g. colour, brightness or mat appearance

Abstract

Prior to electroplating with zinc, a magnesium alloy die cast panel of percentage composition 90.2 parts Mg, 9 parts Al, 0.2 part Mn, and 0.6 part Zn is brightened and smoothed by immersion in an aqueous pickling solution containing by weight 28 per cent of chromium trioxide, 2.5 per cent of 70 per cent aqueous nitric acid, 0.8 per cent of 52 per cent aqueous hydrofluoric acid, and is then activated by immersion in an aqueous bath containing by weight 20 per cent of 85 per cent aqueous phosphoric acid and 10 per cent of ammonium bifluoride.
GB11559/57A 1956-06-20 1957-04-09 Electrodeposition of zinc on magnesium and its alloys Expired GB809312A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US592554A US2811484A (en) 1956-06-20 1956-06-20 Electrodeposition of zinc on magnesium and its alloys

Publications (1)

Publication Number Publication Date
GB809312A true GB809312A (en) 1959-02-18

Family

ID=24371147

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11559/57A Expired GB809312A (en) 1956-06-20 1957-04-09 Electrodeposition of zinc on magnesium and its alloys

Country Status (4)

Country Link
US (1) US2811484A (en)
DE (1) DE1091397B (en)
FR (1) FR1175464A (en)
GB (1) GB809312A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030305A1 (en) * 1979-12-07 1981-06-17 Norsk Hydro A/S Chemical pretreatment for method for the electrolytical metal coating of magnesium articles

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3416968A (en) * 1965-10-24 1968-12-17 Banks Abraham Primary cell
FR2091934A1 (en) * 1970-05-15 1971-01-21 Delarue Ets Treatment of magnesium articles - prior to chrome plating
US3816188A (en) * 1972-12-18 1974-06-11 Du Pont Low-fuming galvanizing fluxes
US4566992A (en) * 1981-12-28 1986-01-28 Metafuse Limited Solutions for the fusion of one metal to another
US4840711A (en) * 1981-01-13 1989-06-20 Metafuse Limited Process for the fusion of one element into a second element
US7704366B2 (en) * 2005-08-17 2010-04-27 Trevor Pearson Pretreatment of magnesium substrates for electroplating
CN1936092B (en) * 2006-09-01 2011-08-10 上海大学 Method for directly electrodepositing zinc on magnesium surface
ITBG20060043A1 (en) * 2006-09-11 2008-03-12 Motus Tech Srl Motion Tecnology LINEAR ACTUATOR WITH JUNCTION ELEMENTS IN MOLTED MONOLITHIC CONSTITUTION.
CN100567583C (en) * 2007-02-09 2009-12-09 上海大学 The method of directly electrodepositing zinc-nickel alloy on magnesium alloy surface
CN103469269B (en) * 2013-09-16 2016-03-30 天津大学 A kind of corrosion proof method of raising magnesium base biological medical material

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2511952A (en) * 1950-06-20 Process of plating zinc on aluminum
US1791082A (en) * 1927-04-20 1931-02-03 Bianco Giuseppe Electrolytic zinc bath
US2437612A (en) * 1941-08-21 1948-03-09 Osborg Hans Process for electrolytically zinc plating magnesium and magnesium base alloys
US2488246A (en) * 1944-08-25 1949-11-15 United Chromium Inc Process of electroplating zinc, and baths and compositions for use therein
GB701877A (en) * 1951-04-13 1954-01-06 Dow Chemical Co Method of treating electroplated magnesium castings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030305A1 (en) * 1979-12-07 1981-06-17 Norsk Hydro A/S Chemical pretreatment for method for the electrolytical metal coating of magnesium articles

Also Published As

Publication number Publication date
US2811484A (en) 1957-10-29
FR1175464A (en) 1959-03-26
DE1091397B (en) 1960-10-20

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