GB878307A - Improvements relating to the cleaning and phosphate coating of metallic surfaces - Google Patents

Improvements relating to the cleaning and phosphate coating of metallic surfaces

Info

Publication number
GB878307A
GB878307A GB1479959A GB1479959A GB878307A GB 878307 A GB878307 A GB 878307A GB 1479959 A GB1479959 A GB 1479959A GB 1479959 A GB1479959 A GB 1479959A GB 878307 A GB878307 A GB 878307A
Authority
GB
United Kingdom
Prior art keywords
ethylene oxide
metasilicate
molecule
oxide groups
borax
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
GB1479959A
Inventor
Dennis Brian Freeman
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.)
Pyrene Co Ltd
Original Assignee
Pyrene Co Ltd
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 Pyrene Co Ltd filed Critical Pyrene Co Ltd
Priority to GB1479959A priority Critical patent/GB878307A/en
Priority to DEM45149A priority patent/DE1171236B/en
Publication of GB878307A publication Critical patent/GB878307A/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
    • C23C22/78—Pretreatment of the material to be coated
    • 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
    • C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
    • C23G1/19—Iron or steel

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)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Detergent Compositions (AREA)

Abstract

A metal surface is cleaned by an aqueous alkaline solution containing an alkali metal metasilicate, borax and a polyoxyethylene ethanol surface-active agent, and a phosphate coating then formed on the cleaned surface (see Group II). The solution preferably contains 1-15 g/l. alkali metal metasilicate, calculated as sodium metasilicate, borax in an amount equal to one-quarter to the whole of the weight of metasilicate, and 0.1-1 g/l. of surface-active agent chosen from octyl phenol/ethylene oxide condensates having 5-8 ethylene oxide groups in each molecule, C16-C18 fatty alcohol/ethylene oxide condensates having 50-80 ethylene oxide groups in each molecule, m-methyl-p-octyl phenol/ethylene oxide condensates having 6-11 ethylene oxide groups in each molecule, and mixtures thereof. The solution is preferably applied by spraying at a temperature below 120 DEG F. Metals which may be treated are iron, steel, zinc, aluminium and copper. Specifications 865,497 and 871,606 are referred toALSO:A metal surface is cleaned by an aqueous alkaline solution containing alkali metal metasilicate, borax and a polyoxyethylene ethanol surface-active agent, and a phosphate coating then formed on the cleaned surface. The solution preferably contains 1-15 g/l alkali metal metasilicate, calculated as sodium metasilicate, borax in an amount equal to one-quarter to the whole of the weight of metasilicate, and 0.1-1 g/l. of surface-active agent chosen from octyl phenol/ethylene oxide condensates having 5-8 ethylene oxide groups in each molecule, C16-18 fatty alcohol/ethylene oxide condensates having 50-80 ethylene oxide groups in each molecule, m-methyl-p-octyl phenol/ethylene oxide condensates having 6/11 ethylene oxide groups in each molecule, and mixtures thereof. Phosphating is preferably effected with an aqueous acidic zinc dihydrogen phosphate type solution which is accelerated with e.g. nitrite, peroxide, bromate, sulphite, nitro-sulphonate, m-nitrobenezene sulphonate, picric acid or nitrate, optionally together with sodium ethylene diamine tetra-acetate. The cleaning and phosphating solutions are both preferably applied by spraying at a temperature below 120 DEG F. The phosphate coating may finally be rinsed in dilute chromic acid solution. Metals which may be treated are iron, steel, zinc, aluminium and copper. Specifications 865,497 and 871,606 are referred to.
GB1479959A 1959-04-30 1959-04-30 Improvements relating to the cleaning and phosphate coating of metallic surfaces Expired GB878307A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1479959A GB878307A (en) 1959-04-30 1959-04-30 Improvements relating to the cleaning and phosphate coating of metallic surfaces
DEM45149A DE1171236B (en) 1959-04-30 1960-04-28 Process for cleaning metal surfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1479959A GB878307A (en) 1959-04-30 1959-04-30 Improvements relating to the cleaning and phosphate coating of metallic surfaces

Publications (1)

Publication Number Publication Date
GB878307A true GB878307A (en) 1961-09-27

Family

ID=10047687

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1479959A Expired GB878307A (en) 1959-04-30 1959-04-30 Improvements relating to the cleaning and phosphate coating of metallic surfaces

Country Status (2)

Country Link
DE (1) DE1171236B (en)
GB (1) GB878307A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4707193A (en) * 1985-11-28 1987-11-17 Gerhard Collardin Gesellschaft Mit Beschraenkter Haftung Method for activating metal surfaces prior to zinc phosphation
GB2199850A (en) * 1986-10-17 1988-07-20 Pyrene Chemical Services Ltd Process for producing phosphate coatings
EP0310587A1 (en) * 1987-09-30 1989-04-05 Monsanto Company Compositions and process for metal treatment
EP1705265A1 (en) * 2003-12-04 2006-09-27 Sumitomo Metal Industries, Ltd. Surface adjustment treatment prior to chemical treatment of steel product

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4707193A (en) * 1985-11-28 1987-11-17 Gerhard Collardin Gesellschaft Mit Beschraenkter Haftung Method for activating metal surfaces prior to zinc phosphation
GB2199850A (en) * 1986-10-17 1988-07-20 Pyrene Chemical Services Ltd Process for producing phosphate coatings
GB2199850B (en) * 1986-10-17 1990-06-13 Pyrene Chemical Services Ltd Process for producing phosphate coatings
EP0310587A1 (en) * 1987-09-30 1989-04-05 Monsanto Company Compositions and process for metal treatment
EP1705265A1 (en) * 2003-12-04 2006-09-27 Sumitomo Metal Industries, Ltd. Surface adjustment treatment prior to chemical treatment of steel product
EP1705265A4 (en) * 2003-12-04 2009-05-13 Sumitomo Metal Ind Surface adjustment treatment prior to chemical treatment of steel product
US7666266B2 (en) 2003-12-04 2010-02-23 Sumitomo Metal Industries, Ltd. Surface conditioning prior to chemical conversion treatment of a steel member
CN1890403B (en) * 2003-12-04 2010-10-13 住友金属工业株式会社 Surface adjustment treatment prior to chemical treatment of steel product
NO341188B1 (en) * 2003-12-04 2017-09-04 Sumitomo Metal Ind Surface conditioning prior to chemical treatment of steel product

Also Published As

Publication number Publication date
DE1171236B (en) 1964-05-27

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