[go: up one dir, main page]

GB903151A - Improvements in or relating to solutions and processes for the production of phosphate coatings on metal surfaces - Google Patents

Improvements in or relating to solutions and processes for the production of phosphate coatings on metal surfaces

Info

Publication number
GB903151A
GB903151A GB709560A GB709560A GB903151A GB 903151 A GB903151 A GB 903151A GB 709560 A GB709560 A GB 709560A GB 709560 A GB709560 A GB 709560A GB 903151 A GB903151 A GB 903151A
Authority
GB
United Kingdom
Prior art keywords
solution
phosphoric acid
acid
coating
imido
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
GB709560A
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.)
Gerhard Collardin GmbH
Original Assignee
Gerhard Collardin GmbH
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 Gerhard Collardin GmbH filed Critical Gerhard Collardin GmbH
Publication of GB903151A publication Critical patent/GB903151A/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
    • C23C22/16—Orthophosphates containing zinc cations containing also peroxy-compounds
    • 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

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 phosphating solution, particularly for coating iron and steel, contains 1-15 g./l. of zinc and/or manganese phosphates and one or more nitrogen-containing phosphoric acid derivatives having one or more amido-and/or imido-groups and/or water-soluble salts thereof. Specified derivatives are monoamido-and diamido-phosphoric acid, imido-diphosphoric acid, polyimido-phosphoric acid and phosphoryltriamide. The solution may contain accelerators such as nitrates, chlorates and percompounds (e.g. hydrogen peroxide, or perphosphates, perborates or ammonium persulphate together with acid to maintain the pH of the solution constant). Suitable proportions are 0.01-10 g./l. of phosphoric acid derivative and peroxide (calculated as H2O2) in an amount of 1/30 to 1/8 the amount of coating metal. The solution preferably is supersaturated in respect of coating metal and has a pH exceeding the pH of equilibrium, stabilized, if desired, by buffers such as sodium and/or zinc acetate. In one Example (8), the phosphate coating is treated in chromic acid solution. German Specifications 715,540 and 931,520 are referred to.
GB709560A 1959-02-27 1960-02-29 Improvements in or relating to solutions and processes for the production of phosphate coatings on metal surfaces Expired GB903151A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC18498A DE1095625B (en) 1959-02-27 1959-02-27 Process for phosphating metals

Publications (1)

Publication Number Publication Date
GB903151A true GB903151A (en) 1962-08-15

Family

ID=7016449

Family Applications (1)

Application Number Title Priority Date Filing Date
GB709560A Expired GB903151A (en) 1959-02-27 1960-02-29 Improvements in or relating to solutions and processes for the production of phosphate coatings on metal surfaces

Country Status (2)

Country Link
DE (1) DE1095625B (en)
GB (1) GB903151A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996017976A1 (en) * 1994-12-06 1996-06-13 Henkel Corporation Zinc phosphate conversion coating composition and process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996017976A1 (en) * 1994-12-06 1996-06-13 Henkel Corporation Zinc phosphate conversion coating composition and process

Also Published As

Publication number Publication date
DE1095625B (en) 1960-12-22

Similar Documents

Publication Publication Date Title
GB1135552A (en) Process for the preparation of white iron phosphate
DE3566683D1 (en) Process for the zinc-calcium phosphatizing of metal surfaces at a low treating temperature
GB752711A (en) Improvements in the production of phosphate coatings on metallic surfaces
GB903151A (en) Improvements in or relating to solutions and processes for the production of phosphate coatings on metal surfaces
ES350547A1 (en) Solutions for the deposition of protective surface layers on iron and zinc and process therefor
ES259854A1 (en) Process of improving the resistance of metals and metal objects to corrosion, and phophating solution suited for carrying out such process
GB905853A (en) Improvements in or relating to solutions and processes for the production of phosphate coatings on metal surfaces
GB944419A (en) Process for applying firmly adhering phosphate coatings to metal surfaces in the presence of aluminium
GB905008A (en) Improvements in or relating to solutions and processes for the production of phosphate coatings on metal surfaces
GB963128A (en) Improvements in or relating to the formation of chemical conversion coating upon metal surfaces
ES274253A1 (en) Improvements relating to the phosphate-coating of metals
US3015593A (en) Methods and composition for producing a phosphate coating on zinc metal
GB812095A (en) Improvements relating to the formation of phosphate coatings
GB907795A (en) Processes for the production of phosphate coatings on iron, steel and/or zinc surfaces
GB985025A (en) Process for coating zinc and zinc-iron alloy surfaces
GB599784A (en) Improvements in or relating to processes for the production of protective coatings on metal surfaces
GB599778A (en) Improvements relating to the production of phosphate coatings on metal
GB738004A (en) Improvements relating to the production of phosphate coatings on metals
GB783749A (en) Improvements in or relating to the production of phosphate coatings on metals
GB806568A (en) Initiating compositions for electric detonators and processes for the production thereof
GB912400A (en) Processes for the production of phosphate coatings on aluminium surfaces
GB554654A (en) Improvements in or relating to the production of phosphate coatings upon ferrous metal surfaces
GB893771A (en) Improvements in processes for the production of chemical conversion coatings upon aluminium and its alloys
GB802894A (en) Improvements in or relating to a method of and compositions for treating concentrated acids to prevent corrosion of metals in contact therewith
GB897020A (en) Improvements relating to the working of metals