JPS64288A - Method for descaling hot rolled chromium stainless steel strip - Google Patents

Method for descaling hot rolled chromium stainless steel strip

Info

Publication number
JPS64288A
JPS64288A JP32679587A JP32679587A JPS64288A JP S64288 A JPS64288 A JP S64288A JP 32679587 A JP32679587 A JP 32679587A JP 32679587 A JP32679587 A JP 32679587A JP S64288 A JPS64288 A JP S64288A
Authority
JP
Japan
Prior art keywords
strip
stainless steel
hot rolled
steel strip
nitric acid
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
JP32679587A
Other languages
Japanese (ja)
Other versions
JPH01288A (en
Inventor
Hideo Anpo
Takehisa Mizunuma
Seisaburo Abe
Masamitsu Tsuchinaga
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
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP32679587A priority Critical patent/JPS64288A/en
Publication of JPH01288A publication Critical patent/JPH01288A/en
Publication of JPS64288A publication Critical patent/JPS64288A/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
    • C23G1/085—Iron or steel solutions containing HNO3

Abstract

PURPOSE:To effectively remove oxide scale from a hot rolled Cr stainless steel strip by treating the strip by shot blasting or other means, dipping it in an aq. soln. contg. sulfuric acid and nitric acid ions at specified concns. and removing smut. CONSTITUTION:A hot rolled Cr stainless steel strip is treated by a mechanical means such as shot blasting to crack scale on the strip. The strip is dipped in an aq. soln. contg. 150-550g/l sulfuric acid and 5-90g/l nitric acid ions in the form of nitric acid or the like and descaling is carried out by brushing or other means. Smut produced by pickling is then removed by treatment with a aq. nitric acid soln. or other means to obtain a white surface. Thus, the strip is effectively descaled without reducing the rate of passing or passing the strip again through pickling equipment.
JP32679587A 1987-02-13 1987-12-25 Method for descaling hot rolled chromium stainless steel strip Pending JPS64288A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32679587A JPS64288A (en) 1987-02-13 1987-12-25 Method for descaling hot rolled chromium stainless steel strip

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2952887 1987-02-13
JP62-29528 1987-02-13
JP32679587A JPS64288A (en) 1987-02-13 1987-12-25 Method for descaling hot rolled chromium stainless steel strip

Publications (2)

Publication Number Publication Date
JPH01288A JPH01288A (en) 1989-01-05
JPS64288A true JPS64288A (en) 1989-01-05

Family

ID=26367737

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32679587A Pending JPS64288A (en) 1987-02-13 1987-12-25 Method for descaling hot rolled chromium stainless steel strip

Country Status (1)

Country Link
JP (1) JPS64288A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4589116A (en) * 1983-08-11 1986-05-13 Siemens Aktiengesellschaft Laser diode with uniform mechanical stress and/or heat dissipation
US5202002A (en) * 1991-05-14 1993-04-13 Nippon Steel Corporation Process for pickling steel-based metallic materials at a high speed

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PT2609167E (en) 2010-08-26 2015-07-30 Henkel US IP LLC Low application temperature amorphous poly- -olefin adhesive

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4589116A (en) * 1983-08-11 1986-05-13 Siemens Aktiengesellschaft Laser diode with uniform mechanical stress and/or heat dissipation
US5202002A (en) * 1991-05-14 1993-04-13 Nippon Steel Corporation Process for pickling steel-based metallic materials at a high speed

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