FR2359219A1 - Surface treating carbon and low alloy steels - to give fine oxalate coatings which improve cold workability - Google Patents

Surface treating carbon and low alloy steels - to give fine oxalate coatings which improve cold workability

Info

Publication number
FR2359219A1
FR2359219A1 FR7721682A FR7721682A FR2359219A1 FR 2359219 A1 FR2359219 A1 FR 2359219A1 FR 7721682 A FR7721682 A FR 7721682A FR 7721682 A FR7721682 A FR 7721682A FR 2359219 A1 FR2359219 A1 FR 2359219A1
Authority
FR
France
Prior art keywords
alloy steels
cold workability
surface treating
low alloy
improve cold
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.)
Granted
Application number
FR7721682A
Other languages
French (fr)
Other versions
FR2359219B1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2359219A1 publication Critical patent/FR2359219A1/en
Application granted granted Critical
Publication of FR2359219B1 publication Critical patent/FR2359219B1/fr
Granted 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
    • C23C22/46—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 oxalates

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)
  • Metal Extraction Processes (AREA)

Abstract

C-and alloy steels contg. 1%C, and 10%Cr and 2%Mo, resp., are surface treated to improve the cold workability by immersing in an aq. soln. contg. oxalic acid and 0.5-3g/l. Cl-. The surface coating improves the lubrication during cold working. An excellent coating with good adhesion is obtd. by adding Cl- to the soln. The Cl- content is limited to prevent accumulation and overpickling.
FR7721682A 1976-07-21 1977-07-13 Surface treating carbon and low alloy steels - to give fine oxalate coatings which improve cold workability Granted FR2359219A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8598076A JPS5311839A (en) 1976-07-21 1976-07-21 Surface treatment of carbon steel and alloyed steel for cold working

Publications (2)

Publication Number Publication Date
FR2359219A1 true FR2359219A1 (en) 1978-02-17
FR2359219B1 FR2359219B1 (en) 1979-07-20

Family

ID=13873843

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7721682A Granted FR2359219A1 (en) 1976-07-21 1977-07-13 Surface treating carbon and low alloy steels - to give fine oxalate coatings which improve cold workability

Country Status (8)

Country Link
JP (1) JPS5311839A (en)
AT (1) AT352497B (en)
BE (1) BE856822A (en)
DE (1) DE2732269A1 (en)
ES (1) ES460920A1 (en)
FR (1) FR2359219A1 (en)
IT (1) IT1081294B (en)
SE (1) SE7708380L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS589372A (en) * 1981-07-08 1983-01-19 Mitsubishi Electric Corp Optically triggered thyristor
DE3226613A1 (en) * 1982-07-16 1984-01-19 Siemens AG, 1000 Berlin und 8000 München LIGHT IGNITABLE THYRISTOR WITH LOW LIGHT OUTPUT
DE3226624A1 (en) * 1982-07-16 1984-01-19 Siemens AG, 1000 Berlin und 8000 München LIGHT IGNITABLE THYRISTOR WITH LOW LIGHT POWER REQUIREMENT AND HIGH CRITICAL RISE SPEED
JP2701277B2 (en) * 1987-12-09 1998-01-21 日産自動車株式会社 Work processing method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE811900C (en) * 1948-10-02 1951-08-23 Metallgesellschaft Ag Process to facilitate the cold working of high-alloy steels

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE811900C (en) * 1948-10-02 1951-08-23 Metallgesellschaft Ag Process to facilitate the cold working of high-alloy steels

Also Published As

Publication number Publication date
BE856822A (en) 1977-10-31
DE2732269A1 (en) 1978-01-26
IT1081294B (en) 1985-05-16
JPS5311839A (en) 1978-02-02
FR2359219B1 (en) 1979-07-20
AT352497B (en) 1979-09-25
SE7708380L (en) 1978-01-22
ES460920A1 (en) 1978-05-16
ATA519277A (en) 1979-02-15

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Legal Events

Date Code Title Description
ST Notification of lapse