JPS5576017A - Surface reforming device of continuously annealed steel hoop - Google Patents

Surface reforming device of continuously annealed steel hoop

Info

Publication number
JPS5576017A
JPS5576017A JP14898878A JP14898878A JPS5576017A JP S5576017 A JPS5576017 A JP S5576017A JP 14898878 A JP14898878 A JP 14898878A JP 14898878 A JP14898878 A JP 14898878A JP S5576017 A JPS5576017 A JP S5576017A
Authority
JP
Japan
Prior art keywords
steel hoop
reforming
vapor deposition
vapors
deposition chamber
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
JP14898878A
Other languages
Japanese (ja)
Inventor
Yuji Shimoyama
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.)
JFE Steel Corp
Original Assignee
Kawasaki 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP14898878A priority Critical patent/JPS5576017A/en
Publication of JPS5576017A publication Critical patent/JPS5576017A/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
    • C21D1/72—Temporary coatings or embedding materials applied before or during heat treatment during chemical change of surfaces

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)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Coating With Molten Metal (AREA)

Abstract

PURPOSE:To evenly evaporate the metals of reforming components on surfaces and improve the rust preventive characteristic and corrosion resistance of the continuously annealed steel hoop by passing the steel hoop through a vapor deposition chamber of high temperature which is filled with metal vapors as reforming components in a reducing gas atmosphere. CONSTITUTION:The steel hoop 3 uncoiled from a pay-off reel R is passed through a vapor deposition chamber E by way of a cleaning device C and entry loop tower T, whereby reforming components such as Bi, Se, Te are evaporated on its surfaces, after which it is annealed in a continuous annealing furnace A. Reducing gas such as NH gas or AX gas is being supplied from the outside into the vapor deposition chamber E under the pressure higher than the atmospheric pressure so as to prevent entry of air. Reforming components such as Bi, Se and Te are being melted in a pot 7 provided with a heater and the vapors thereof are filling the inside of the reducing gas atmosphere having been heated to 220-1000 deg.C with a heater 9. The steel hoop 3 of low temperature enters the inside of the chamber by way of seal rolls 13 and the vapors of reforming component metals evenly evaporate on the surfaces of the steel hoop 3, thence the steel hoop enters the continuous annealing furnace A. The annealed steel hoop of superior rust preventive characteristic and corrosion resistance is obtained.
JP14898878A 1978-12-04 1978-12-04 Surface reforming device of continuously annealed steel hoop Pending JPS5576017A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14898878A JPS5576017A (en) 1978-12-04 1978-12-04 Surface reforming device of continuously annealed steel hoop

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14898878A JPS5576017A (en) 1978-12-04 1978-12-04 Surface reforming device of continuously annealed steel hoop

Publications (1)

Publication Number Publication Date
JPS5576017A true JPS5576017A (en) 1980-06-07

Family

ID=15465180

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14898878A Pending JPS5576017A (en) 1978-12-04 1978-12-04 Surface reforming device of continuously annealed steel hoop

Country Status (1)

Country Link
JP (1) JPS5576017A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993016210A1 (en) * 1992-02-12 1993-08-19 Nisshin Steel Co., Ltd. Al-Si-Cr-PLATED STEEL SHEET EXCELLENT IN CORROSION RESISTANCE AND PRODUCTION THEREOF

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993016210A1 (en) * 1992-02-12 1993-08-19 Nisshin Steel Co., Ltd. Al-Si-Cr-PLATED STEEL SHEET EXCELLENT IN CORROSION RESISTANCE AND PRODUCTION THEREOF

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