GB1368845A - Processes and composition for the formation of phosphate coatings - Google Patents

Processes and composition for the formation of phosphate coatings

Info

Publication number
GB1368845A
GB1368845A GB1760672A GB1760672A GB1368845A GB 1368845 A GB1368845 A GB 1368845A GB 1760672 A GB1760672 A GB 1760672A GB 1760672 A GB1760672 A GB 1760672A GB 1368845 A GB1368845 A GB 1368845A
Authority
GB
United Kingdom
Prior art keywords
ratio
points
processes
formation
composition
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
GB1760672A
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 Chemical Services Ltd
Original Assignee
Pyrene Chemical Services 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 Chemical Services Ltd filed Critical Pyrene Chemical Services Ltd
Priority to GB1760672A priority Critical patent/GB1368845A/en
Priority to DE19732313452 priority patent/DE2313452A1/en
Priority to AT266473A priority patent/AT319684B/en
Priority to FR7311068A priority patent/FR2180704B1/fr
Priority to ES413767A priority patent/ES413767A1/en
Priority to IT2305373A priority patent/IT987078B/en
Priority to BE130086A priority patent/BE798298A/en
Priority to NL7305289A priority patent/NL7305289A/xx
Priority to SE7305493A priority patent/SE387967B/en
Publication of GB1368845A publication Critical patent/GB1368845A/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
    • C23C22/22—Orthophosphates containing alkaline earth metal 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

1368845 Phosphatising PYRENE CHEMICAL SERVICES Ltd 11 April 1973 [17 April 1972] 17606/72 Heading C7U An aqueous acidic phosphatising solution comprises (1) 2 to 20 g/l Zn, (2) 1 to 25 g/l Ca (3) 20 to 150 g/l NO 3 and (4) 3 to 20 g/l PO 4 , has a Zn:Ca wt. ratio of 0À2 to 10:1 and a NO 3 :PO 4 ratio of at least 2:1, and has a total acid content of at least 30 points; when the ratio NO 3 : PO 4 = 2 to 5:1, the ratio total acid points to free acid points is 5 to 8:1 and when NO 3 : PO 4 is greater than 5:1, said points ratio is 7 to 36:1. A concentrate for replenishment of the bath contains in weight parts 2-20 Zn, 1-25 Ca, 20-150 NO 3 , and 3-20 PO 4 , the ratio Zn:Ca being 0À2 to 10:1 and NO 3 : PO 4 being greater than 2:1. The bath may contain 0 to 2 g/l each of Ni and/or Co and 0 to 5 g/l of Mg, and 0-10 g/l of F<SP>-</SP> when Al is treated; 0À1 to 0À3 g/l nitrite may be added at the start of the process. Fe, steel, Zn, Al and their alloys are treated at T # 55‹ C. for 1-30 minutes, preferably by dipping, to give a coating weight of 2 to 6 g/m<SP>2</SP>.
GB1760672A 1972-04-17 1972-04-17 Processes and composition for the formation of phosphate coatings Expired GB1368845A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GB1760672A GB1368845A (en) 1972-04-17 1972-04-17 Processes and composition for the formation of phosphate coatings
DE19732313452 DE2313452A1 (en) 1972-04-17 1973-03-17 SOLUTION AND METHOD FOR APPLYING A PHOPHATUE COATING TO METAL SURFACES
AT266473A AT319684B (en) 1972-04-17 1973-03-26 Solution, concentrate and method for applying a phosphate coating to metal surfaces
FR7311068A FR2180704B1 (en) 1972-04-17 1973-03-28
ES413767A ES413767A1 (en) 1972-04-17 1973-04-16 Processes and composition for the formation of phosphate coatings
IT2305373A IT987078B (en) 1972-04-17 1973-04-16 PROCEDURES AND COMPOSITIONS FOR THE FORMATION OF PHOSPHATIC COATINGS
BE130086A BE798298A (en) 1972-04-17 1973-04-16 METHOD AND SOLUTION FOR FORMING A PHOSPHATE COATING ON A METAL SURFACE
NL7305289A NL7305289A (en) 1972-04-17 1973-04-16
SE7305493A SE387967B (en) 1972-04-17 1973-04-17 PROCEDURE FOR APPLYING A PHOSPHATE COATING ON METAL SURFACES AND MEANS FOR PERFORMING THE PROCEDURE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1760672A GB1368845A (en) 1972-04-17 1972-04-17 Processes and composition for the formation of phosphate coatings

Publications (1)

Publication Number Publication Date
GB1368845A true GB1368845A (en) 1974-10-02

Family

ID=10098098

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1760672A Expired GB1368845A (en) 1972-04-17 1972-04-17 Processes and composition for the formation of phosphate coatings

Country Status (9)

Country Link
AT (1) AT319684B (en)
BE (1) BE798298A (en)
DE (1) DE2313452A1 (en)
ES (1) ES413767A1 (en)
FR (1) FR2180704B1 (en)
GB (1) GB1368845A (en)
IT (1) IT987078B (en)
NL (1) NL7305289A (en)
SE (1) SE387967B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4140551A (en) * 1977-08-19 1979-02-20 Heatbath Corporation Low temperature microcrystalline zinc phosphate coatings, compositions, and processes for using and preparing the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5558376A (en) * 1978-10-21 1980-05-01 Nippon Paint Co Ltd Calsium modified zinc phosphate film treating solution

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT282285B (en) * 1965-12-22 1970-06-25 Plaut Fa J Zinc phosphate coatings
US3307979A (en) * 1965-10-11 1967-03-07 Lubrizol Corp Phosphating solutions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4140551A (en) * 1977-08-19 1979-02-20 Heatbath Corporation Low temperature microcrystalline zinc phosphate coatings, compositions, and processes for using and preparing the same

Also Published As

Publication number Publication date
FR2180704A1 (en) 1973-11-30
DE2313452A1 (en) 1973-10-31
ES413767A1 (en) 1976-01-16
AT319684B (en) 1975-01-10
SE387967B (en) 1976-09-20
IT987078B (en) 1975-02-20
NL7305289A (en) 1973-10-19
FR2180704B1 (en) 1976-05-21
BE798298A (en) 1973-08-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee