GB1118476A - Phosphating iron and steel - Google Patents

Phosphating iron and steel

Info

Publication number
GB1118476A
GB1118476A GB2729267A GB2729267A GB1118476A GB 1118476 A GB1118476 A GB 1118476A GB 2729267 A GB2729267 A GB 2729267A GB 2729267 A GB2729267 A GB 2729267A GB 1118476 A GB1118476 A GB 1118476A
Authority
GB
United Kingdom
Prior art keywords
h3bo3
total
free
solution
steel
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
GB2729267A
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
Publication of GB1118476A publication Critical patent/GB1118476A/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
    • C23C22/73—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 characterised by the process
    • C23C22/76—Applying the liquid by spraying
    • 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
    • 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
    • C23C22/13—Orthophosphates containing zinc cations containing also nitrate or nitrite anions

Abstract

<PICT:1118476/C6-C7/1> A zinc phosphate coating is formed on iron and steel by treating the metal with an aqueous acidic fluoride free zinc phosphate solution containing one or more oxidizing agents such as nitrates, nitrites, chlorates and bromates and at least 0.5 g/l boric acid calculated as H3BO3, the total P2O5 content being 2-12 g/l and the weight ratio of free P2O5 to total P2O5 lying within the area ABCD on the graph shown in the drawing. The solution may contain 1.5-4g/l H3BO3 as H3BO3, Na2 B4 O7 or as NaBO2, at least 3 mgm/l of a titanium phosphate activator, up to 4g/l tartaric acid and 0.05 - 1g/l of a non ionic surface active agent such as ethexylated alkyl phonols and straight chain fatty alcohols. The tartaric acid may be added as such or as a soluble salt such as Rochelle salt. The pH of the solution is 2 - 3.5 and the ratio of free to total P2 O5 is adjusted by altering the pH by adding NaOH. The phosphated metal may be rinsed with water and then with a solution containing CrO3.
GB2729267A 1966-06-18 1967-06-13 Phosphating iron and steel Expired GB1118476A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM0069887 1966-06-18

Publications (1)

Publication Number Publication Date
GB1118476A true GB1118476A (en) 1968-07-03

Family

ID=7313200

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2729267A Expired GB1118476A (en) 1966-06-18 1967-06-13 Phosphating iron and steel

Country Status (11)

Country Link
AT (1) AT268815B (en)
BE (1) BE699016A (en)
CH (1) CH502443A (en)
DE (1) DE1521877B1 (en)
DK (1) DK129009B (en)
ES (1) ES341925A1 (en)
GB (1) GB1118476A (en)
IL (1) IL27950A (en)
NL (1) NL153607B (en)
PL (1) PL69845B1 (en)
SE (1) SE320864B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106947964A (en) * 2017-04-26 2017-07-14 江苏省沙钢钢铁研究院有限公司 A kind of steel plate aqueous chromium-free fast filming treatment fluid and preparation method thereof
DE102019002417A1 (en) * 2018-12-20 2020-06-25 IAP Industrial Acid Proofing Europe GmbH Method and device for phosphating components made of ferrous metal

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB247071A (en) * 1925-06-26 1926-02-11 Thomas Watts Coslett Improvements in or relating to processes for the treatment of iron or steel for preveting oxidation or rusting
US2477841A (en) * 1945-09-10 1949-08-02 Parker Rust Proof Co Method of coating metal surfaces comprising aluminum

Also Published As

Publication number Publication date
CH502443A (en) 1971-01-31
PL69845B1 (en) 1973-10-31
SE320864B (en) 1970-02-16
ES341925A1 (en) 1968-07-01
NL153607B (en) 1977-06-15
AT268815B (en) 1969-02-25
DK129009B (en) 1974-08-05
BE699016A (en) 1967-11-03
IL27950A (en) 1970-07-19
NL6707376A (en) 1967-12-19
DE1521877B1 (en) 1970-07-02

Similar Documents

Publication Publication Date Title
GB2080835B (en) Prevention of sludge in phosphating baths
GB1193459A (en) Improvements in the Protection of Zinc and Galvanised Surfaces
ES8305051A1 (en) Process for phosphating metal surfaces.
GB1118476A (en) Phosphating iron and steel
GB957379A (en) Solutions and processes for the production of phosphate coatings on zinc metal surfaces
GB655890A (en) Improvements in or relating to the production of phosphate coatings on zinc or zinc-rich alloys
ES274253A1 (en) Improvements relating to the phosphate-coating of metals
GB932987A (en) Improvements relating to the phosphate-coating of metals
GB944419A (en) Process for applying firmly adhering phosphate coatings to metal surfaces in the presence of aluminium
GB738004A (en) Improvements relating to the production of phosphate coatings on metals
GB1027325A (en) Improvements in or relating to zinc phosphate conversion coating solution concentrates
GB985025A (en) Process for coating zinc and zinc-iron alloy surfaces
GB840302A (en) Improvements relating to the formation of chromate coatings on metal surfaces
ES349360A1 (en) Chemical coating process for metal
GB1040020A (en) Phosphating solutions
ES342739A1 (en) Method for coating ferrous metal surfaces
GB812095A (en) Improvements relating to the formation of phosphate coatings
GB1153668A (en) A Metal Treating Process for Coating the Surfaces of Tortuous Aluminium Objects
GB985014A (en) Powder composition for bright dipping zinc and cadmium
GB1052771A (en)
GB811645A (en) Improvements relating to the formation of phosphate coatings
GB984055A (en) Anti-corrosion product
GB1261130A (en) Process for electro-phoretically applying enamel to metal objects, more particularly iron sheet
GB894261A (en) Treating oxide-coated aluminium surfaces
GB985369A (en) Chlorate accelerated zinc phosphate baths with added arsenate