GB1247980A - Copper alloy cleaning process - Google Patents

Copper alloy cleaning process

Info

Publication number
GB1247980A
GB1247980A GB54269/69A GB5426969A GB1247980A GB 1247980 A GB1247980 A GB 1247980A GB 54269/69 A GB54269/69 A GB 54269/69A GB 5426969 A GB5426969 A GB 5426969A GB 1247980 A GB1247980 A GB 1247980A
Authority
GB
United Kingdom
Prior art keywords
solution
copper alloy
cleaning process
immersion
seconds
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
GB54269/69A
Inventor
James Arthur Ford
Stuart Richard Saunders
Elmer Joseph Caule
Charles Donald Mclain
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.)
Olin Corp
Original Assignee
Olin Corp
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 Olin Corp filed Critical Olin Corp
Publication of GB1247980A publication Critical patent/GB1247980A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts

Abstract

1,247,980. Cleaning copper alloys. OLIN CORP. Nov. 5, 1969 [Jan. 6, 1969], No. 54269/69. Heading C7E. Cu-based alloys are cleaned by immersion in an aqueous alkaline solution of pH > 10 at 100‹F. to the boiling-point for at least 2 seconds, followed by immersion in an aqueous mineral acid solution at 75‹F. -200‹F. for 2 seconds to 5 minutes, said acid solution having a pH equal to that of an H 2 SO 4 solution of 3-50% by volume. The Cu-based alloy may contain Al, and have a coating of complex oxide, e.g. containing Al 2 O 3 . The alkaline solution may be KOH, LiOH, or preferably NaOH, and the acid may be H 2 SO 4 , HCl, or HNO 3 , optionally containing Na 2 Cr 2 O 7 , e.g. in amounts of 1 to 8 oz. per gallon.
GB54269/69A 1969-01-06 1969-11-05 Copper alloy cleaning process Expired GB1247980A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78941769A 1969-01-06 1969-01-06

Publications (1)

Publication Number Publication Date
GB1247980A true GB1247980A (en) 1971-09-29

Family

ID=25147586

Family Applications (1)

Application Number Title Priority Date Filing Date
GB54269/69A Expired GB1247980A (en) 1969-01-06 1969-11-05 Copper alloy cleaning process

Country Status (4)

Country Link
US (1) US3646946A (en)
JP (1) JPS504185B1 (en)
FR (1) FR2027786A1 (en)
GB (1) GB1247980A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE388444B (en) * 1972-10-30 1976-10-04 Southwire Co PROCEDURE FOR CONTINUOUS TREATMENT OF MOLDED COPPER BAR WITH AN OXIDE LAYER ON ITS SURFACE AND APPLIANCE FOR PERFORMING THE PROCEDURE
US3905808A (en) * 1973-03-21 1975-09-16 Madison Ind Inc Process for the recovery of metallics from brass skimmings
CA1117853A (en) * 1978-09-13 1982-02-09 Andrew J. Brock Copper alloy cleaning process
US4361445A (en) * 1978-09-13 1982-11-30 Olin Corporation Copper alloy cleaning process
US4581102A (en) * 1984-08-20 1986-04-08 Olin Corporation Copper-base alloy cleaning solution
US4600443A (en) * 1984-10-01 1986-07-15 Kennecott Corporation Process for removing surface oxides from a copper-base alloy
JPS6168789U (en) * 1984-10-12 1986-05-10
US4769345A (en) * 1987-03-12 1988-09-06 Olin Corporation Process for producing a hermetically sealed package for an electrical component containing a low amount of oxygen and water vapor
US5052421A (en) * 1988-07-19 1991-10-01 Henkel Corporation Treatment of aluminum with non-chrome cleaner/deoxidizer system followed by conversion coating
US20050037935A1 (en) 2003-08-11 2005-02-17 Abd Elhamid Mahmoud H. Composition and method for surface treatment of oxidized metal

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US947067A (en) * 1908-09-30 1910-01-18 Int Nickel Co Method of treating nickel-copper alloys.
US1049054A (en) * 1911-07-08 1912-12-31 Frank E Coombs Process of removing scale.
US1859734A (en) * 1928-12-21 1932-05-24 Electro Metallurg Co Method of removing oxide coatings from metals
US2125458A (en) * 1936-09-30 1938-08-02 Georg Von Giesche S Erben Method of bright-pickling articles of copper-zinc alloys
US2284743A (en) * 1941-03-28 1942-06-02 Beryllium Corp Pickling agent for copper-beryllium alloys
US2318559A (en) * 1941-04-30 1943-05-04 Monsanto Chemicals Material for and process of pickling copper or its alloys
BE476664A (en) * 1944-06-02
US2671717A (en) * 1950-08-29 1954-03-09 Gen Electric Chemical brightening of aluminum
US2726970A (en) * 1954-06-01 1955-12-13 Ford Motor Co Deoxidizing copper base metal parts
US3003896A (en) * 1958-01-17 1961-10-10 Rohr Aircraft Corp Process and composition for treating aluminum alloys
US3121026A (en) * 1960-07-15 1964-02-11 Titanium Metals Corp Descaling metals and alloys with aqueous potassium hydroxide at relatively low temperature

Also Published As

Publication number Publication date
DE2000209A1 (en) 1970-07-23
DE2000209B2 (en) 1977-01-27
FR2027786A1 (en) 1970-10-02
US3646946A (en) 1972-03-07
JPS504185B1 (en) 1975-02-15

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