GB772113A - Method of and solution for coating steel and zinc surfaces - Google Patents

Method of and solution for coating steel and zinc surfaces

Info

Publication number
GB772113A
GB772113A GB1957355A GB1957355A GB772113A GB 772113 A GB772113 A GB 772113A GB 1957355 A GB1957355 A GB 1957355A GB 1957355 A GB1957355 A GB 1957355A GB 772113 A GB772113 A GB 772113A
Authority
GB
United Kingdom
Prior art keywords
zinc
nickel
cobalt
chlorate
carbonate
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
GB1957355A
Inventor
George Schneider
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.)
Henkel Corp
Original Assignee
Amchem Products Inc
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 Amchem Products Inc filed Critical Amchem Products Inc
Priority to GB1957355A priority Critical patent/GB772113A/en
Publication of GB772113A publication Critical patent/GB772113A/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
    • C23C22/07—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 phosphates
    • C23C22/08—Orthophosphates
    • C23C22/12—Orthophosphates containing zinc cations
    • C23C22/14—Orthophosphates containing zinc cations containing also chlorate anions

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

An aqueous solution for applying a crystalline zinc phosphate coating to steel and zinc surfaces contains phosphoric acid, zinc, chlorate, and nickel and/or cobalt, the zinc being present from 0.2-0.4 per cent W/V., the ratio of free to total acid being 1:7.5-1:10.0, the ratio of phosphate to chlorate being 1.0.28-1:1.10, and the nickel and/or cobalt being present in not less than 1 equivalent of the metal per 100 equivalents of zinc. The temperature of employment is preferably 145 DEG -165 DEG F. Solutions containing zinc oxide, phosphoric acid, nickel carbonate and sodium chlorate are given by way of example, it being stated that the nickel carbonate may be replaced by nickel nitrate, cobalt nitrate or cobalt carbonate. Specification 672,367 is referred to.
GB1957355A 1955-07-06 1955-07-06 Method of and solution for coating steel and zinc surfaces Expired GB772113A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1957355A GB772113A (en) 1955-07-06 1955-07-06 Method of and solution for coating steel and zinc surfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1957355A GB772113A (en) 1955-07-06 1955-07-06 Method of and solution for coating steel and zinc surfaces

Publications (1)

Publication Number Publication Date
GB772113A true GB772113A (en) 1957-04-10

Family

ID=10131624

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1957355A Expired GB772113A (en) 1955-07-06 1955-07-06 Method of and solution for coating steel and zinc surfaces

Country Status (1)

Country Link
GB (1) GB772113A (en)

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