GB1373897A - Processes for phosphating steel - Google Patents

Processes for phosphating steel

Info

Publication number
GB1373897A
GB1373897A GB1361873A GB1361873A GB1373897A GB 1373897 A GB1373897 A GB 1373897A GB 1361873 A GB1361873 A GB 1361873A GB 1361873 A GB1361873 A GB 1361873A GB 1373897 A GB1373897 A GB 1373897A
Authority
GB
United Kingdom
Prior art keywords
bath
replenishment
contain
march
alkali
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
GB1361873A
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
Publication of GB1373897A publication Critical patent/GB1373897A/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

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)
  • Removal Of Specific Substances (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

1373897 Phosphatizing steel PYRENE CHEMICAL SERVICES Ltd 21 March 1973 [22 March 1972] 13618/73 Heading C7U Steel surfaces are phosphatized by contact with an aqueous bath containing 1-35 g/l Mn, 0-30 g/l Fe II, 5-80 g/l P 2 O 5 , and 0-80 g/l NO 3 , having a point number from 15-150 and the following weight ratios of constituents: Fell: Mn = 0-10 : 1, Mn : P 2 O 5 = 0À02-2À5 : 1, NO 3 : P 2 O 5 = 0-3 : 1, and free P 2 O 5 : total P 2 O 5 = 0À05-0À45 : 1, the bath being replenished during use with a replenishment containing Mn : P 2 O 5 : NO 3 in a ratio 0À05-0À6 : 1 : 0-1 and having a ratio free P 2 O 5 : total P 2 O 5 of 0À5-1 : 1, the NO 3 in both bath and replenishment being wholly or partly replaceable by Cl or/and SO 4 , in the proportion 0À57 parts Cl or 0À77 parts SO 4 for 1 part of NO 3 . The initial bath may also contain Ni or Co, simple or complex fluorides, chlorate, peroxide, bromate or nitrite, and the replenishment may contain Ni, Co, alkali, Ca or NH4 cations or simple or complex fluorides. A workpiece is cleaned by degreasing in organic solvent, acid, neutral, or alkaline cleaning, sandsteel grain- or corundum-blasting, alkali- or acidpickling, optionally pre-treated in an aqueous suspension of manganese phosphate which may contain Na 4 P 2 O 7 or Na 5 P 3 O 10 , and is then dipped at T>60‹C in the bath for 1-30 minutes; the P 2 O 5 in the replenishment may be provided by polyphosphoric acid or salt instead of orthophosphate.
GB1361873A 1972-03-22 1973-03-21 Processes for phosphating steel Expired GB1373897A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722213781 DE2213781C3 (en) 1972-03-22 1972-03-22 Process for the phosphating of steel

Publications (1)

Publication Number Publication Date
GB1373897A true GB1373897A (en) 1974-11-13

Family

ID=5839694

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1361873A Expired GB1373897A (en) 1972-03-22 1973-03-21 Processes for phosphating steel

Country Status (10)

Country Link
BE (1) BE789593A (en)
CA (1) CA980220A (en)
CH (1) CH590341A5 (en)
DE (1) DE2213781C3 (en)
ES (1) ES407482A1 (en)
FR (1) FR2176647B1 (en)
GB (1) GB1373897A (en)
IT (1) IT982575B (en)
NL (1) NL173661C (en)
SE (1) SE383537B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110165426A1 (en) * 2008-09-17 2011-07-07 Hoden Seimitsu Kako Kenkyusho Co., Ltd. Aqueous solution for blackening chemical conversion coating of zinc or zinc alloy surface and method of forming blackened anti-corrosion coating film using the aqueous solution for the chemical conversion coating
US9506151B2 (en) 1999-09-30 2016-11-29 Chemetall Gmbh Method for applying manganese phosphate layers

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2724395B1 (en) * 1994-09-12 1996-11-22 Gec Alsthom Transport Sa INSULATED MAGNETIC SHEET AND METHOD FOR ISOLATING SAME
DE4440300A1 (en) 1994-11-11 1996-05-15 Metallgesellschaft Ag Process for applying phosphate coatings
DE202006009624U1 (en) * 2006-06-19 2007-10-31 Paatz Viernau Gmbh Composite stable coating

Family Cites Families (7)

* 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
FR1073198A (en) * 1953-03-23 1954-09-20 Solution for the protection of ferrous metals
DE1109484B (en) * 1956-02-29 1961-06-22 American Chem Paint Co Manganese phosphate coatings
FR1403267A (en) * 1963-07-30 1965-06-18 Parker Ste Continentale Process for the formation of manganese phosphate coatings on iron and steel
DE1246356B (en) * 1963-07-30 1967-08-03 Metallgesellschaft Ag Process for the production of manganese phosphate coatings on iron and steel
DE1521927B1 (en) * 1965-01-25 1970-07-23 J Plaut Fa Process for the production of coatings from zinc phosphate on objects made of steel, iron, zinc or their alloys
DE1521889B1 (en) * 1966-11-30 1972-01-13 Metallgesellschaft Ag METHOD OF PHOSPHATING IRON AND STEEL

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9506151B2 (en) 1999-09-30 2016-11-29 Chemetall Gmbh Method for applying manganese phosphate layers
US20110165426A1 (en) * 2008-09-17 2011-07-07 Hoden Seimitsu Kako Kenkyusho Co., Ltd. Aqueous solution for blackening chemical conversion coating of zinc or zinc alloy surface and method of forming blackened anti-corrosion coating film using the aqueous solution for the chemical conversion coating

Also Published As

Publication number Publication date
BE789593A (en) 1973-02-01
DE2213781B2 (en) 1977-03-17
NL7303791A (en) 1973-09-25
ES407482A1 (en) 1975-11-01
DE2213781C3 (en) 1983-12-08
FR2176647A1 (en) 1973-11-02
CH590341A5 (en) 1977-08-15
DE2213781A1 (en) 1973-09-27
NL173661C (en) 1984-02-16
SE383537B (en) 1976-03-15
CA980220A (en) 1975-12-23
FR2176647B1 (en) 1977-06-17
NL173661B (en) 1983-09-16
IT982575B (en) 1974-10-21

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19930320