DE59703459D1 - Pickling agent for stainless steel - Google Patents

Pickling agent for stainless steel

Info

Publication number
DE59703459D1
DE59703459D1 DE59703459T DE59703459T DE59703459D1 DE 59703459 D1 DE59703459 D1 DE 59703459D1 DE 59703459 T DE59703459 T DE 59703459T DE 59703459 T DE59703459 T DE 59703459T DE 59703459 D1 DE59703459 D1 DE 59703459D1
Authority
DE
Germany
Prior art keywords
stainless steel
pickling agent
pickling
agent
cerium
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.)
Expired - Lifetime
Application number
DE59703459T
Other languages
German (de)
Inventor
Harald Werner
Bernd Schaarschuh
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.)
Chemetall GmbH
Original Assignee
Chemetall GmbH
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 Chemetall GmbH filed Critical Chemetall GmbH
Application granted granted Critical
Publication of DE59703459D1 publication Critical patent/DE59703459D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel
    • C23G1/086—Iron or steel solutions containing HF

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

Pickling agent comprises 1-12 wt.% hydrofluoric acid and 0.02-2 wt.% cerium and/or cobalt compound.
DE59703459T 1996-03-13 1997-02-22 Pickling agent for stainless steel Expired - Lifetime DE59703459D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19609671A DE19609671A1 (en) 1996-03-13 1996-03-13 Pickling agent for stainless steel

Publications (1)

Publication Number Publication Date
DE59703459D1 true DE59703459D1 (en) 2001-06-07

Family

ID=7788040

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19609671A Withdrawn DE19609671A1 (en) 1996-03-13 1996-03-13 Pickling agent for stainless steel
DE59703459T Expired - Lifetime DE59703459D1 (en) 1996-03-13 1997-02-22 Pickling agent for stainless steel

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19609671A Withdrawn DE19609671A1 (en) 1996-03-13 1996-03-13 Pickling agent for stainless steel

Country Status (3)

Country Link
EP (1) EP0795627B1 (en)
AT (1) ATE200917T1 (en)
DE (2) DE19609671A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3280038A (en) * 1964-03-20 1966-10-18 Dow Chemical Co Method for cleaning stainless steel
JPS56130475A (en) * 1980-03-13 1981-10-13 Sumitomo Metal Ind Ltd Manufacture of hot rolled steel plate with superior chemical treatability
ES2171170T3 (en) * 1993-09-13 2002-09-01 Commw Scient Ind Res Org METAL TREATMENT THROUGH A CLEANING SOLUTION CONTAINING ION ACIDS FROM RARE LANDS.

Also Published As

Publication number Publication date
DE19609671A1 (en) 1997-09-18
ATE200917T1 (en) 2001-05-15
EP0795627A1 (en) 1997-09-17
EP0795627B1 (en) 2001-05-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition