FR2249967A2 - Pretreatment of steel strip - providing a coating which can be directly enamelled - Google Patents

Pretreatment of steel strip - providing a coating which can be directly enamelled

Info

Publication number
FR2249967A2
FR2249967A2 FR7339504A FR7339504A FR2249967A2 FR 2249967 A2 FR2249967 A2 FR 2249967A2 FR 7339504 A FR7339504 A FR 7339504A FR 7339504 A FR7339504 A FR 7339504A FR 2249967 A2 FR2249967 A2 FR 2249967A2
Authority
FR
France
Prior art keywords
coating
steel strip
pretreatment
providing
strip
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
FR7339504A
Other languages
French (fr)
Other versions
FR2249967B2 (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.)
USINOR SA
Original Assignee
USINOR SA
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 USINOR SA filed Critical USINOR SA
Priority to FR7339504A priority Critical patent/FR2249967A2/en
Priority to LU68784D priority patent/LU68784A1/xx
Priority to GB5286273A priority patent/GB1452074A/en
Priority to JP12931273A priority patent/JPS5311260B2/ja
Priority to NL7315955A priority patent/NL7315955A/xx
Priority to IT5378373A priority patent/IT997741B/en
Priority to DE19732358171 priority patent/DE2358171C3/en
Priority to US05/555,923 priority patent/US4012239A/en
Publication of FR2249967A2 publication Critical patent/FR2249967A2/en
Application granted granted Critical
Publication of FR2249967B2 publication Critical patent/FR2249967B2/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D3/00—Diffusion processes for extraction of non-metals; Furnaces therefor
    • C21D3/02—Extraction of non-metals
    • C21D3/04—Decarburising

Abstract

The steel strip is coated directly after rolling with a layer of Ni and/or Lo, a salt or mixt. of salts of these metals. The coating is dried and the strip heated in a decarburising atmos. until almost complete decarburisation is effected. During the subsequent coding cycle, the strip is exposed to an oxidising atmos. contg. 2 - 7% water vapour and having a H2 : H2O ratio of 6.
FR7339504A 1972-11-21 1973-11-07 Pretreatment of steel strip - providing a coating which can be directly enamelled Granted FR2249967A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR7339504A FR2249967A2 (en) 1973-11-07 1973-11-07 Pretreatment of steel strip - providing a coating which can be directly enamelled
LU68784D LU68784A1 (en) 1972-11-21 1973-11-12
GB5286273A GB1452074A (en) 1972-11-21 1973-11-14 Process for treating steel sheets for the purpose of enamelling the sheets
JP12931273A JPS5311260B2 (en) 1972-11-21 1973-11-19
NL7315955A NL7315955A (en) 1972-11-21 1973-11-20
IT5378373A IT997741B (en) 1972-11-21 1973-11-21 PROCESS OF TREATMENT OF STEEL SHEETS IN VIEW OF THEIR ENAMELING
DE19732358171 DE2358171C3 (en) 1973-11-07 1973-11-22 Process for the pretreatment of steel sheets for their enamelling
US05/555,923 US4012239A (en) 1972-11-21 1975-03-06 Process for treating steel sheets for the purpose of enamelling the sheets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7339504A FR2249967A2 (en) 1973-11-07 1973-11-07 Pretreatment of steel strip - providing a coating which can be directly enamelled

Publications (2)

Publication Number Publication Date
FR2249967A2 true FR2249967A2 (en) 1975-05-30
FR2249967B2 FR2249967B2 (en) 1976-11-19

Family

ID=9127394

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7339504A Granted FR2249967A2 (en) 1972-11-21 1973-11-07 Pretreatment of steel strip - providing a coating which can be directly enamelled

Country Status (2)

Country Link
DE (1) DE2358171C3 (en)
FR (1) FR2249967A2 (en)

Also Published As

Publication number Publication date
DE2358171A1 (en) 1975-05-15
DE2358171C3 (en) 1979-09-13
FR2249967B2 (en) 1976-11-19
DE2358171B2 (en) 1979-01-11

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Legal Events

Date Code Title Description
CA Change of address
CD Change of name or company name
TP Transmission of property