GB482282A - Improvements in or relating to the bright-dipping of electrodeposited zinc coatings - Google Patents

Improvements in or relating to the bright-dipping of electrodeposited zinc coatings

Info

Publication number
GB482282A
GB482282A GB2575136A GB2575136A GB482282A GB 482282 A GB482282 A GB 482282A GB 2575136 A GB2575136 A GB 2575136A GB 2575136 A GB2575136 A GB 2575136A GB 482282 A GB482282 A GB 482282A
Authority
GB
United Kingdom
Prior art keywords
dipping
bright
relating
zinc coatings
electrodeposited zinc
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
GB2575136A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to GB2575136A priority Critical patent/GB482282A/en
Publication of GB482282A publication Critical patent/GB482282A/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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F3/00—Brightening metals by chemical means
    • C23F3/04—Heavy metals
    • C23F3/06—Heavy metals with acidic solutions

Landscapes

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

Abstract

Electrodeposited zinc coatings are brightened and passivated by dipping into dilute nitric acid solution, the solution containing not more than 1 per cent and preferably 0,1-0,6 per cent of acid. Specifications 472,995, 472,996, 473,147; and 474,449, [Group XXXVI], are referred to.
GB2575136A 1936-09-22 1936-09-22 Improvements in or relating to the bright-dipping of electrodeposited zinc coatings Expired GB482282A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2575136A GB482282A (en) 1936-09-22 1936-09-22 Improvements in or relating to the bright-dipping of electrodeposited zinc coatings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2575136A GB482282A (en) 1936-09-22 1936-09-22 Improvements in or relating to the bright-dipping of electrodeposited zinc coatings

Publications (1)

Publication Number Publication Date
GB482282A true GB482282A (en) 1938-03-22

Family

ID=10232694

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2575136A Expired GB482282A (en) 1936-09-22 1936-09-22 Improvements in or relating to the bright-dipping of electrodeposited zinc coatings

Country Status (1)

Country Link
GB (1) GB482282A (en)

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