FR2236964A1 - Chromating tin plate - to provide a coating resistant to corrosion by sulphur - Google Patents

Chromating tin plate - to provide a coating resistant to corrosion by sulphur

Info

Publication number
FR2236964A1
FR2236964A1 FR7325894A FR7325894A FR2236964A1 FR 2236964 A1 FR2236964 A1 FR 2236964A1 FR 7325894 A FR7325894 A FR 7325894A FR 7325894 A FR7325894 A FR 7325894A FR 2236964 A1 FR2236964 A1 FR 2236964A1
Authority
FR
France
Prior art keywords
tin
sulphur
corrosion
chromating
tin plate
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
FR7325894A
Other languages
French (fr)
Other versions
FR2236964B1 (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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to FR7325894A priority Critical patent/FR2236964A1/en
Publication of FR2236964A1 publication Critical patent/FR2236964A1/en
Application granted granted Critical
Publication of FR2236964B1 publication Critical patent/FR2236964B1/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
    • C23C22/24—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 hexavalent chromium compounds

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)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

Twined steel is treated to protect it against corrosion by depositing a layer of chromate, on the tin, immediately after the tin has been applied, using an aq. soln. contg. hexavalent chromium ions, and heating the chromated steel to above 100 degrees C and pref. above the m.pt. of the tin, followed by the usual chemical treatment of the tinned surface. Tin cans so treated have improved resistance to sulphur corrosion and hence to hardening from sulphur existing in meat, fish powdered milk, peas, asparagus and other foods rich in protein. The coating also reduces the tendency for tin to dissolve in fruit juices.
FR7325894A 1973-07-13 1973-07-13 Chromating tin plate - to provide a coating resistant to corrosion by sulphur Granted FR2236964A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7325894A FR2236964A1 (en) 1973-07-13 1973-07-13 Chromating tin plate - to provide a coating resistant to corrosion by sulphur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7325894A FR2236964A1 (en) 1973-07-13 1973-07-13 Chromating tin plate - to provide a coating resistant to corrosion by sulphur

Publications (2)

Publication Number Publication Date
FR2236964A1 true FR2236964A1 (en) 1975-02-07
FR2236964B1 FR2236964B1 (en) 1977-02-18

Family

ID=9122596

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7325894A Granted FR2236964A1 (en) 1973-07-13 1973-07-13 Chromating tin plate - to provide a coating resistant to corrosion by sulphur

Country Status (1)

Country Link
FR (1) FR2236964A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2687693A1 (en) * 1992-02-25 1993-08-27 Lorraine Laminage Process for treating the surface of a product made up of a metal substrate comprising a multilayer metal coating and an organic coating and products obtained by this process

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB819305A (en) * 1955-11-07 1959-09-02 Ekco Products Company Improvements in or relating to anodic treatment of tin and tin alloys

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB819305A (en) * 1955-11-07 1959-09-02 Ekco Products Company Improvements in or relating to anodic treatment of tin and tin alloys

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2687693A1 (en) * 1992-02-25 1993-08-27 Lorraine Laminage Process for treating the surface of a product made up of a metal substrate comprising a multilayer metal coating and an organic coating and products obtained by this process

Also Published As

Publication number Publication date
FR2236964B1 (en) 1977-02-18

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