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GB427921A - Improvements in and relating to the production of phosphate coatings on iron or steel - Google Patents

Improvements in and relating to the production of phosphate coatings on iron or steel

Info

Publication number
GB427921A
GB427921A GB9346/34A GB934634A GB427921A GB 427921 A GB427921 A GB 427921A GB 9346/34 A GB9346/34 A GB 9346/34A GB 934634 A GB934634 A GB 934634A GB 427921 A GB427921 A GB 427921A
Authority
GB
United Kingdom
Prior art keywords
manganese
nitrate
phosphate
phosphates
iron
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
GB9346/34A
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.)
METAL FINISHING RES CORP
Original Assignee
METAL FINISHING RES 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 METAL FINISHING RES CORP filed Critical METAL FINISHING RES CORP
Publication of GB427921A publication Critical patent/GB427921A/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
    • C23C22/18—Orthophosphates containing manganese cations
    • 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
    • C23C22/18—Orthophosphates containing manganese cations
    • C23C22/186—Orthophosphates containing manganese cations containing also copper cations

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

A bath for use in forming phosphate coatings on iron or steel and which initially contains one or more acid phosphates and a nitrate of an alkali metal is replenished by the addition of an acid phosphate or phosphates and a nitrate of one of the elements magnesium, calcium, barium, strontium, manganese, zinc, cadmium, and iron, which elements enter into the coating as phosphates. The preferred bath is formed by dissolving manganese dihydrogen phosphate and sodium nitrate, with or without a soluble copper compound such as copper carbonate, and is replenished by the addition of manganese dihydrogen phosphate and manganese nitrate. The manganese nitrate is preferably added in admixture with normal or mono-hydrogen manganese phosphate and a copper compound may be added with the manganese dihydrogen phosphate. Specification 386,739 is referred to. The Specification as open to inspection under Sect. 91 describes replenishment by the addition of an acid phosphate or phosphates and a nitrate of an element that volatizes, such as boron, or of an element that will form insoluble compounds and be precipitated out of the solution, such as chromium, aluminium, thorium and cerium. This subject-matter does not appear in the Specification as accepted.
GB9346/34A 1933-03-27 1934-03-24 Improvements in and relating to the production of phosphate coatings on iron or steel Expired GB427921A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US770798XA 1933-03-27 1933-03-27
US427921XA 1933-03-27 1933-03-27
US662998A US2001754A (en) 1933-03-27 1933-03-27 Method and material for producing phosphate coating

Publications (1)

Publication Number Publication Date
GB427921A true GB427921A (en) 1935-05-02

Family

ID=61192565

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9346/34A Expired GB427921A (en) 1933-03-27 1934-03-24 Improvements in and relating to the production of phosphate coatings on iron or steel

Country Status (4)

Country Link
US (1) US2001754A (en)
BE (1) BE402237A (en)
FR (1) FR770798A (en)
GB (1) GB427921A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE966914C (en) * 1936-05-01 1957-09-19 Metallgesellschaft Ag Process for the formation of phosphate coatings
DE974004C (en) * 1937-06-02 1960-08-18 Metallgesellschaft Ag Process to improve the non-cutting deformation of workpieces made of iron and zinc

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE746470C (en) * 1935-02-18 1944-07-21 Metallgesellschaft Ag Process for refreshing zinc phosphate rust protection baths
US2927873A (en) * 1952-03-26 1960-03-08 Bofors Ab Method of increasing the resistance of metals to corrosion
US3178319A (en) * 1958-06-05 1965-04-13 Geraldine D Henricks Phosphate coating compositions and methods of making and using the same
US3261723A (en) * 1962-11-30 1966-07-19 Lubrizol Corp Method for reducing combustion chamber deposits in internal combustion engines
US3467589A (en) * 1966-10-19 1969-09-16 Hooker Chemical Corp Method of forming a copper containing protective coating prior to electrodeposition of paint
DE2632626A1 (en) * 1975-07-25 1977-02-10 Ici Ltd BASE MATERIAL COATED WITH A METAL PHOSPHATE COATING

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE966914C (en) * 1936-05-01 1957-09-19 Metallgesellschaft Ag Process for the formation of phosphate coatings
DE974004C (en) * 1937-06-02 1960-08-18 Metallgesellschaft Ag Process to improve the non-cutting deformation of workpieces made of iron and zinc

Also Published As

Publication number Publication date
US2001754A (en) 1935-05-21
BE402237A (en) 1934-04-30
FR770798A (en) 1934-09-20

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