GB419782A - Method of coating zinc or cadmium base metals - Google Patents

Method of coating zinc or cadmium base metals

Info

Publication number
GB419782A
GB419782A GB2879/34A GB287934A GB419782A GB 419782 A GB419782 A GB 419782A GB 2879/34 A GB2879/34 A GB 2879/34A GB 287934 A GB287934 A GB 287934A GB 419782 A GB419782 A GB 419782A
Authority
GB
United Kingdom
Prior art keywords
per cent
zinc
acid
alloy
metals
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
GB2879/34A
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.)
New Jersey Zinc Co
Original Assignee
New Jersey Zinc 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 New Jersey Zinc Co filed Critical New Jersey Zinc Co
Publication of GB419782A publication Critical patent/GB419782A/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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/24—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12785—Group IIB metal-base component
    • Y10T428/12792—Zn-base component

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

Zinc or cadmium base metals, i.e. the metals zinc and cadmium, alloys composed principally of zinc or cadmium, and metals coated with these metals or alloys, are immersed in an acid solution containing chromate or dichromate ions and the anions of a mineral acid, the ratio of the chromate or dichromate ions to the mineral acid anions and the time of immersion being such that a visible coloured coating is formed on the metals. The mineral acid used is sulphuric acid, hydrochloric acid, or nitric acid. The solution may consist of chromic acid and a free mineral acid or a salt of a mineral acid or both free acid and a salt, or it may consist of a dichromate and a free mineral acid. Details of the relative proportions and times of immersion are given. After immersion the article is cleaned by rinsing in cold water and dried, for example by an air blast. Before coating, the articles are cleaned by cathodic treatment for 1/2 -3 minutes in a hot solution of trisodium phosphate, followed by successive rinsings in hot and cold water. The treatment of the following alloys is referred to:-(1) an alloy containing 1 per cent copper and 0,01 per cent magnesium, the balance being zinc containing 0,05 per cent lead; (2) an alloy of zinc with 4,1 per cent aluminium, 2,7 per cent copper, and 0,03 per cent magnesium; (3) an alloy of zinc with 4,1 per cent aluminium and 0,04 per cent magnesium; (4) an alloy of zinc with 4,1 per cent aluminium, 1,0 per cent copper, and 0,03 per cent magnesium ; (5) an alloy of zinc with 4,1 per cent aluminium and 1,25 per cent copper. British Specifications 252,020, 305,651, [both in Class 82 (i)], 314,769, [Class 82 (ii)], 340,104, 374,826, 376,534, 376,988, 378,645, and U.S.A. Specification 1,663,215 are referred to.
GB2879/34A 1933-05-13 1934-01-27 Method of coating zinc or cadmium base metals Expired GB419782A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US771724XA 1933-05-13 1933-05-13
US614567XA 1933-05-13 1933-05-13
US419782XA 1933-05-13 1933-05-13
US670992A US2035380A (en) 1933-05-13 1933-05-13 Method of coating zinc or cadmium base metals

Publications (1)

Publication Number Publication Date
GB419782A true GB419782A (en) 1934-11-19

Family

ID=61187893

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2879/34A Expired GB419782A (en) 1933-05-13 1934-01-27 Method of coating zinc or cadmium base metals

Country Status (5)

Country Link
US (1) US2035380A (en)
BE (1) BE401594A (en)
DE (1) DE614567C (en)
FR (1) FR771724A (en)
GB (1) GB419782A (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434021A (en) * 1943-03-08 1948-01-06 Ncr Co Process of bright dipping
US2434525A (en) * 1943-08-23 1948-01-13 Rheem Mfg Co Coating on metals
US2434237A (en) * 1943-09-13 1948-01-06 Sk Wellman Co Apparatus for applying powdered metal briquets to curved metallic surfaces
US2433723A (en) * 1943-12-30 1947-12-30 Theophil J Wieczorek Solution for smoothing zinc surfaces
US2499231A (en) * 1944-08-25 1950-02-28 United Chromium Inc Method of producing surface conversion coatings on zinc
US2610133A (en) * 1949-10-26 1952-09-09 Rca Corp Processes of brightening and passivating cadmium and zinc
US2709847A (en) * 1951-05-04 1955-06-07 Bendix Aviat Corp Cadmium plated aluminum and the method of making the same
GB714541A (en) * 1951-06-27 1954-09-01 American Chem Paint Co Method of and materials for producing paint-bonding surfaces on metal
US2760891A (en) * 1951-12-24 1956-08-28 Borg Warner Protective coating and method of applying same to metal parts
IT507220A (en) * 1953-03-13
US2796372A (en) * 1953-05-07 1957-06-18 Poor & Co Corrosion protecting metal finishing composition
US2760890A (en) * 1953-10-14 1956-08-28 Chemical Corp Composition for and method of producing corrosion resistant metal coating
US2801197A (en) * 1954-07-07 1957-07-30 Gen Electric Electric terminal
US2799601A (en) * 1955-04-22 1957-07-16 Allied Res Products Inc Composition and method for coating zinc and zinc alloy sheets
US2884350A (en) * 1955-12-28 1959-04-28 Sylvania Electric Prod Solderable zinc alloy coating
US2861019A (en) * 1956-06-07 1958-11-18 Dow Chemical Co Chromate-coating magnesium and its alloys
US2902394A (en) * 1956-07-19 1959-09-01 Poor & Co Protective metal coating compositions and method of coating
GB869395A (en) * 1959-05-27 1961-05-31 Pyrene Co Ltd Improvements relating to the production of chemical coatings on zinc and zinc alloys
US3097978A (en) * 1961-08-17 1963-07-16 Isaac L Newell Method of coating zinc surfaces
GB1052970A (en) * 1964-01-31
US3411958A (en) * 1965-05-03 1968-11-19 Mc Donnell Douglas Corp Treatment of steel parts
US3277820A (en) * 1965-08-04 1966-10-11 Ball Brothers Co Inc Lithographic plate and method of making same
US3619441A (en) * 1969-04-03 1971-11-09 Southern Block And Pipe Corp Metal treatment to prevent corrosion and blemishes in metal reinforced concrete structures
US3909209A (en) * 1973-11-05 1975-09-30 Gould Inc Method of treating aluminum and aluminum alloys and article produced thereby
FR2307886A1 (en) * 1975-04-17 1976-11-12 Seprom Thermonite Zinc coating steel screw bolts - by applying an acid treatment after sherardizing
US5219617A (en) * 1989-09-19 1993-06-15 Michigan Chrome And Chemical Company Corrosion resistant coated articles and process for making same
US5330588A (en) * 1993-02-02 1994-07-19 E2Ki & Associates Inc. Organic-aqueous composition and process for forming corrosion-resistant coatings on metal surfaces
US7314671B1 (en) 1996-04-19 2008-01-01 Surtec International Gmbh Chromium(VI)-free conversion layer and method for producing it
DE19615664A1 (en) 1996-04-19 1997-10-23 Surtec Produkte Und Systeme Fu Chromium (VI) free chromate layer and process for its production
WO2003002776A2 (en) * 2001-06-28 2003-01-09 Algat Sherutey Gimur Teufati Method of anodizing of magnesium and magnesium alloys and producing conductive layers on an anodized surface
US20070119715A1 (en) * 2005-11-25 2007-05-31 Sacks Abraham J Corrosion Resistant Wire Products and Method of Making Same
US20110070429A1 (en) * 2009-09-18 2011-03-24 Thomas H. Rochester Corrosion-resistant coating for active metals

Also Published As

Publication number Publication date
DE614567C (en) 1935-06-14
BE401594A (en) 1934-03-31
FR771724A (en) 1934-10-15
US2035380A (en) 1936-03-24

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