GB897020A - Improvements relating to the working of metals - Google Patents

Improvements relating to the working of metals

Info

Publication number
GB897020A
GB897020A GB381/61A GB38161A GB897020A GB 897020 A GB897020 A GB 897020A GB 381/61 A GB381/61 A GB 381/61A GB 38161 A GB38161 A GB 38161A GB 897020 A GB897020 A GB 897020A
Authority
GB
United Kingdom
Prior art keywords
phosphate
coating
solution
accelerator
acid solution
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
GB381/61A
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 GB897020A publication Critical patent/GB897020A/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
    • C23C22/10—Orthophosphates containing oxidants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C9/00—Cooling, heating or lubricating drawing material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

897,020. Drawing. PYRENE CO. Ltd. Jan. 4, 1961 [March 10, 1960], No. 381/61. Class 83 (4). A method of cold working iron or steel comprises forming a phosphate coating on the surface by treatment with an acid solution of a non-coating phosphate and subjecting the coated article to plastic deformation such that the coating is wholly removed. For convenience, alkali metal phosphates are used and the concentration of phosphate in the acid solution, calculated as mono-sodium phosphate is preferably between 1 and 20 g/l. and the pH of the solution is preferably between 3 and 6. The solution should preferably contain an oxidizing agent as an accelerator, e.g. chlorates, bromates, nitrates, nitrites, per-compounds and/or nitrocompounds. The ratio by weight of the phosphate to the accelerator should be greater than 1 : 10 and not greater than 1 : 0.5. The solution should preferably be used at a temperature between 30‹ and 70‹ C. and may be applied by immersion or spraying. Two examples give details of treatment times and the thickness of coating obtained on steel tubes prior to drawing.
GB381/61A 1960-03-10 1961-01-04 Improvements relating to the working of metals Expired GB897020A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE897020X 1960-03-10
DEM44620A DE1228121B (en) 1960-03-10 1960-03-10 Process for facilitating the cold working of iron from steel
FR851344A FR1279796A (en) 1960-03-10 1961-02-01 Process for treating iron and steel for cold forming

Publications (1)

Publication Number Publication Date
GB897020A true GB897020A (en) 1962-05-23

Family

ID=61167775

Family Applications (1)

Application Number Title Priority Date Filing Date
GB381/61A Expired GB897020A (en) 1960-03-10 1961-01-04 Improvements relating to the working of metals

Country Status (6)

Country Link
BE (1) BE599840A (en)
CH (1) CH396567A (en)
DE (1) DE1228121B (en)
FR (1) FR1279796A (en)
GB (1) GB897020A (en)
SE (1) SE302714B (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2609308A (en) * 1947-11-22 1952-09-02 Parker Rust Proof Co Method and material for producing coatings on metal
GB714321A (en) * 1948-07-23 1954-08-25 Pyrene Co Ltd Improvements in or relating to the coating of ferrous surfaces

Also Published As

Publication number Publication date
FR1279796A (en) 1961-12-22
DE1228121B (en) 1966-11-03
SE302714B (en) 1968-07-29
CH396567A (en) 1965-07-31
BE599840A (en) 1961-05-29

Similar Documents

Publication Publication Date Title
ES8302794A1 (en) Method of phosphating metals, as well as its use in the electrodip painting pretreatment.
GB733235A (en) Improvements in processes of, and compositions for forming phosphate coatings on metallic surfaces
DE3166602D1 (en) Method for the production of phosphate coatings on iron and steel surfaces, and its use
GB849526A (en) Improvements relating to the treatment of ferrous strip
GB1193459A (en) Improvements in the Protection of Zinc and Galvanised Surfaces
GB1115673A (en) Zinc-aluminum coated products and methods therefor
ES350547A1 (en) Solutions for the deposition of protective surface layers on iron and zinc and process therefor
GB897020A (en) Improvements relating to the working of metals
GB963540A (en) Process of improving the resistance of metals and metal objects to corrosion, and phophating solution suited for carrying out such process
GB932987A (en) Improvements relating to the phosphate-coating of metals
JPS5558376A (en) Calsium modified zinc phosphate film treating solution
GB866377A (en) Improvements relating to the production of phosphate coatings on metals
GB1058040A (en) Preparing cold-rolled steel strip
GB812095A (en) Improvements relating to the formation of phosphate coatings
GB970366A (en) Improvements relating to the coating of metals
GB738004A (en) Improvements relating to the production of phosphate coatings on metals
GB707563A (en) Improvements in or relating to the production of phosphate coatings on metal surfaces and to compositions for use therein
GB1374315A (en) Processes and compositions for metal treatment
GB783749A (en) Improvements in or relating to the production of phosphate coatings on metals
GB694454A (en) Improvements relating to the production of phosphate coatings on ferrous surfaces
GB1261130A (en) Process for electro-phoretically applying enamel to metal objects, more particularly iron sheet
GB599778A (en) Improvements relating to the production of phosphate coatings on metal
GB741050A (en) Improvements in the formation of phosphate coatings on metal surfaces
GB1214607A (en) Phosphate coating of iron or steel surfaces
GB907795A (en) Processes for the production of phosphate coatings on iron, steel and/or zinc surfaces