JPS572828A - Manufacture of steel product with superior suitability to pickling - Google Patents

Manufacture of steel product with superior suitability to pickling

Info

Publication number
JPS572828A
JPS572828A JP7717080A JP7717080A JPS572828A JP S572828 A JPS572828 A JP S572828A JP 7717080 A JP7717080 A JP 7717080A JP 7717080 A JP7717080 A JP 7717080A JP S572828 A JPS572828 A JP S572828A
Authority
JP
Japan
Prior art keywords
pickling
products
hot
rolling
suitability
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
JP7717080A
Other languages
Japanese (ja)
Inventor
Motoharu Nakamura
Toshio Odajima
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 JP7717080A priority Critical patent/JPS572828A/en
Publication of JPS572828A publication Critical patent/JPS572828A/en
Pending 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

PURPOSE:To remarkably enhance the suitability of secondary scale on the surfaces of steel products to pickling by coating the products with an agent enhancing the suitability of secondary scale to pickling and with an antioxidant in order before hot-rolling the products. CONSTITUTION:Before hot-rolling steel products heated to 1,100-1,400 deg.C, the products are coated with very finely powdered SiC having <=20mum size by 10- 800g/m<2> using a binder such as sodium silicate or polyphosphoric acid, and they are further coated with an antioxidant consisting of Cr2O3, chamotte, SiO2, Al and sodium silicate. The coated steel products are then hot-rolled and hot-coiled. Thus, secondary scale is formed by a very small amount during the hot-rolling and the following process, and it can be removed thoroughly by pickling with an aqueous soln. of hydrochloric acid or the like in a short time.
JP7717080A 1980-06-10 1980-06-10 Manufacture of steel product with superior suitability to pickling Pending JPS572828A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7717080A JPS572828A (en) 1980-06-10 1980-06-10 Manufacture of steel product with superior suitability to pickling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7717080A JPS572828A (en) 1980-06-10 1980-06-10 Manufacture of steel product with superior suitability to pickling

Publications (1)

Publication Number Publication Date
JPS572828A true JPS572828A (en) 1982-01-08

Family

ID=13626309

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7717080A Pending JPS572828A (en) 1980-06-10 1980-06-10 Manufacture of steel product with superior suitability to pickling

Country Status (1)

Country Link
JP (1) JPS572828A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6081374A (en) * 1983-10-08 1985-05-09 東洋紡績株式会社 Oil agent for elastic yarn
US4824373A (en) * 1986-10-08 1989-04-25 Sankin Industry Co. Swaged metal denture base
US5540953A (en) * 1992-02-14 1996-07-30 Hercules Incorporated Process of preparing fabric comprising hydrophobic polyolefin fibers
AU718145B2 (en) * 1997-12-05 2000-04-06 Mitsubishi Heavy Industries, Ltd. Method and system for suppressing formation of scale in hot finishing mill system
CN102180693A (en) * 2011-03-14 2011-09-14 高庆昌 High-absorptivity coating for resisting oxidation and decarburization of steel billet and preparation method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6081374A (en) * 1983-10-08 1985-05-09 東洋紡績株式会社 Oil agent for elastic yarn
US4824373A (en) * 1986-10-08 1989-04-25 Sankin Industry Co. Swaged metal denture base
US5540953A (en) * 1992-02-14 1996-07-30 Hercules Incorporated Process of preparing fabric comprising hydrophobic polyolefin fibers
US5545481A (en) * 1992-02-14 1996-08-13 Hercules Incorporated Polyolefin fiber
AU718145B2 (en) * 1997-12-05 2000-04-06 Mitsubishi Heavy Industries, Ltd. Method and system for suppressing formation of scale in hot finishing mill system
CN102180693A (en) * 2011-03-14 2011-09-14 高庆昌 High-absorptivity coating for resisting oxidation and decarburization of steel billet and preparation method thereof

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