SE7512607L - PRE-TREATMENT FOR COLD PROCESSING OF STAINLESS STEEL - Google Patents

PRE-TREATMENT FOR COLD PROCESSING OF STAINLESS STEEL

Info

Publication number
SE7512607L
SE7512607L SE7512607A SE7512607A SE7512607L SE 7512607 L SE7512607 L SE 7512607L SE 7512607 A SE7512607 A SE 7512607A SE 7512607 A SE7512607 A SE 7512607A SE 7512607 L SE7512607 L SE 7512607L
Authority
SE
Sweden
Prior art keywords
stainless steel
treatment
cold processing
12hno
dalmine
Prior art date
Application number
SE7512607A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE417334B (en
Inventor
M Memmi
N Vantini
P Berardi
Original Assignee
Dalmine Spa
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 Dalmine Spa filed Critical Dalmine Spa
Publication of SE7512607L publication Critical patent/SE7512607L/en
Publication of SE417334B publication Critical patent/SE417334B/en

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
    • C23C22/73—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 characterised by the process
    • C23C22/77—Controlling or regulating of the coating process

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

1472029 Oxalate conversion coatings DALMINE SpA 29 Oct 1975 [11 Nov 1974] 44533/75 Headings C7E and C7U In an oxalic acid conversion coating process for stainless steel the process is controlled by measuring the electro-potential of the article. A stainless steel tube is first oxidized by heating at 1050‹C, and then pickled in a solution comprising, per cent by wt., 6HF, 12HNO 3 , 15H 2 SO 4 .
SE7512607A 1974-11-11 1975-11-10 PROCEDURE FOR THE MANUFACTURING OF STAINLESS STEEL MANUFACTURED WHICH IS CLEAR FOR COLD PROCESSING SE417334B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT5397774A IT1023210B (en) 1974-11-11 1974-11-11 PREPARATION TREATMENT FOR THE COLD WORKING OF STAINLESS STEELS

Publications (2)

Publication Number Publication Date
SE7512607L true SE7512607L (en) 1976-05-12
SE417334B SE417334B (en) 1981-03-09

Family

ID=11286217

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7512607A SE417334B (en) 1974-11-11 1975-11-10 PROCEDURE FOR THE MANUFACTURING OF STAINLESS STEEL MANUFACTURED WHICH IS CLEAR FOR COLD PROCESSING

Country Status (6)

Country Link
AT (1) AT357589B (en)
DE (1) DE2550655C3 (en)
FR (1) FR2290506A1 (en)
GB (1) GB1472029A (en)
IT (1) IT1023210B (en)
SE (1) SE417334B (en)

Also Published As

Publication number Publication date
IT1023210B (en) 1978-05-10
AT357589B (en) 1980-07-25
ATA853675A (en) 1979-12-15
SE417334B (en) 1981-03-09
DE2550655C3 (en) 1979-05-23
GB1472029A (en) 1977-04-27
DE2550655B2 (en) 1978-09-28
FR2290506A1 (en) 1976-06-04
FR2290506B1 (en) 1979-04-06
DE2550655A1 (en) 1976-05-13

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