JPS54112728A - Descaling method for high ni high cr stainless steel products - Google Patents

Descaling method for high ni high cr stainless steel products

Info

Publication number
JPS54112728A
JPS54112728A JP2115978A JP2115978A JPS54112728A JP S54112728 A JPS54112728 A JP S54112728A JP 2115978 A JP2115978 A JP 2115978A JP 2115978 A JP2115978 A JP 2115978A JP S54112728 A JPS54112728 A JP S54112728A
Authority
JP
Japan
Prior art keywords
products
stainless steel
steel products
descaling
soln
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.)
Pending
Application number
JP2115978A
Other languages
Japanese (ja)
Inventor
Susumu Shintani
Ryohei Minami
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP2115978A priority Critical patent/JPS54112728A/en
Publication of JPS54112728A publication Critical patent/JPS54112728A/en
Pending 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

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

PURPOSE:To rapidly carry out the title descaling at a low cost by feeding high Ni high Cr stainless steel products to a machine such as a strainghtener to crack scale on the surfaces of the products, followed by dipping in a soln. of nitric and hydrofluoric acids. CONSTITUTION:Scaled high Ni high Cr stanless steel products are fed to a machine such as a straightener to crack scale on the surfaces of the products. At this time, the oracking rate is controlled to below 7%. Next the products are dipped in a soln. of about 2-20% nitric acid and about 2-20% hydrofluoric acid in a ratio of 2: about 1 for 20 min-1 hr to carry out descaling. After pickling, the products are washed with water.
JP2115978A 1978-02-24 1978-02-24 Descaling method for high ni high cr stainless steel products Pending JPS54112728A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2115978A JPS54112728A (en) 1978-02-24 1978-02-24 Descaling method for high ni high cr stainless steel products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2115978A JPS54112728A (en) 1978-02-24 1978-02-24 Descaling method for high ni high cr stainless steel products

Publications (1)

Publication Number Publication Date
JPS54112728A true JPS54112728A (en) 1979-09-03

Family

ID=12047125

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2115978A Pending JPS54112728A (en) 1978-02-24 1978-02-24 Descaling method for high ni high cr stainless steel products

Country Status (1)

Country Link
JP (1) JPS54112728A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60248889A (en) * 1984-05-24 1985-12-09 Nippon Steel Corp Manufacture of austenitic stainless steel sheet
JPS6447888A (en) * 1987-08-13 1989-02-22 Mitsubishi Metal Corp Method for removing oxide scale in wire rod producing stage

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60248889A (en) * 1984-05-24 1985-12-09 Nippon Steel Corp Manufacture of austenitic stainless steel sheet
JPH0360920B2 (en) * 1984-05-24 1991-09-18 Nippon Steel Corp
JPS6447888A (en) * 1987-08-13 1989-02-22 Mitsubishi Metal Corp Method for removing oxide scale in wire rod producing stage

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