FR2145405A1 - Phosphatising metal parts before cold working to increase work life - Google Patents

Phosphatising metal parts before cold working to increase work life

Info

Publication number
FR2145405A1
FR2145405A1 FR7125695A FR7125695A FR2145405A1 FR 2145405 A1 FR2145405 A1 FR 2145405A1 FR 7125695 A FR7125695 A FR 7125695A FR 7125695 A FR7125695 A FR 7125695A FR 2145405 A1 FR2145405 A1 FR 2145405A1
Authority
FR
France
Prior art keywords
phosphatising
metal parts
cold working
increase work
parts before
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
FR7125695A
Other languages
French (fr)
Other versions
FR2145405B1 (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.)
Borg Warner Corp
Original Assignee
Borg Warner Corp
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 Borg Warner Corp filed Critical Borg Warner Corp
Priority to FR7125695A priority Critical patent/FR2145405A1/en
Publication of FR2145405A1 publication Critical patent/FR2145405A1/en
Application granted granted Critical
Publication of FR2145405B1 publication Critical patent/FR2145405B1/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
    • C23C22/78—Pretreatment of the material to be coated
    • 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
    • C23C22/82—After-treatment

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)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

Method of treating ferrous metal parts to increase their service life comprises (1) case hardening the exterior surface by carburising (2) phosphatising the part and (3) stressing the surface of the exterior part by cold working e.g. shotpeening. By carrying out the operation in this order fatigue life of the part is considerably increased compared with prior art order.
FR7125695A 1971-07-13 1971-07-13 Phosphatising metal parts before cold working to increase work life Granted FR2145405A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7125695A FR2145405A1 (en) 1971-07-13 1971-07-13 Phosphatising metal parts before cold working to increase work life

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7125695A FR2145405A1 (en) 1971-07-13 1971-07-13 Phosphatising metal parts before cold working to increase work life

Publications (2)

Publication Number Publication Date
FR2145405A1 true FR2145405A1 (en) 1973-02-23
FR2145405B1 FR2145405B1 (en) 1974-03-15

Family

ID=9080317

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7125695A Granted FR2145405A1 (en) 1971-07-13 1971-07-13 Phosphatising metal parts before cold working to increase work life

Country Status (1)

Country Link
FR (1) FR2145405A1 (en)

Also Published As

Publication number Publication date
FR2145405B1 (en) 1974-03-15

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Legal Events

Date Code Title Description
ST Notification of lapse