JPS56139627A - Fog quenching device for striplike steel - Google Patents

Fog quenching device for striplike steel

Info

Publication number
JPS56139627A
JPS56139627A JP1266381A JP1266381A JPS56139627A JP S56139627 A JPS56139627 A JP S56139627A JP 1266381 A JP1266381 A JP 1266381A JP 1266381 A JP1266381 A JP 1266381A JP S56139627 A JPS56139627 A JP S56139627A
Authority
JP
Japan
Prior art keywords
steel strip
cooling
stools
heating furnace
nozzles
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.)
Granted
Application number
JP1266381A
Other languages
Japanese (ja)
Other versions
JPS6157894B2 (en
Inventor
Noriyuki Kondo
Kokichi Mikutsu
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP1266381A priority Critical patent/JPS56139627A/en
Publication of JPS56139627A publication Critical patent/JPS56139627A/en
Publication of JPS6157894B2 publication Critical patent/JPS6157894B2/ja
Granted 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/573—Continuous furnaces for strip or wire with cooling

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)

Abstract

PURPOSE:To prevent the formation of flaws and strains of a steel strip and decrease the variance in hardness by providing ejection nozzles between a hardening heating furnace and cooling stools to quench the steel strip and providing a mechanism for smoothly cooling the cooling stools. CONSTITUTION:A fog quenching device 4 is provided between a hardening heating furnace 3 and cooling stools 6, 6' and spray nozzles 5 positioned symmetrically at an equal spraying angle on the top and under surfaces of a steel strip 2 are installed therein. A coolant is ejected from the spray nozzles 5 to the steel strip 2 heated in the heating furnace 3, whereby the steel strip is quenched. Thence, the steel strip 2 is led to the stools 6, 6'. Flatly polished surfaces 19, 19' and oil holes 17, 18 and 17', 18' ejecting quenching oil are provided to the stools 6, 6', and further, a cooling water chamber 16 is provided. The nozzles 5 are so made as to permit desired adjustment of the cooling medium such as air or water by using pressure regulating valves. Thereby, the cooling of the steel strip 2 is uniformalized and the formation of flaws by the stools 6, 6' is prevented.
JP1266381A 1981-01-30 1981-01-30 Fog quenching device for striplike steel Granted JPS56139627A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1266381A JPS56139627A (en) 1981-01-30 1981-01-30 Fog quenching device for striplike steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1266381A JPS56139627A (en) 1981-01-30 1981-01-30 Fog quenching device for striplike steel

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP14263377A Division JPS5426912A (en) 1977-11-30 1977-11-30 Method and apparatus for spray quenching of band steel

Publications (2)

Publication Number Publication Date
JPS56139627A true JPS56139627A (en) 1981-10-31
JPS6157894B2 JPS6157894B2 (en) 1986-12-09

Family

ID=11811595

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1266381A Granted JPS56139627A (en) 1981-01-30 1981-01-30 Fog quenching device for striplike steel

Country Status (1)

Country Link
JP (1) JPS56139627A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013147155A1 (en) * 2012-03-29 2013-10-03 日立金属株式会社 Method for producing carbon tool steel strip
WO2019069510A1 (en) * 2017-10-05 2019-04-11 中外炉工業株式会社 Vertical heat-treating muffle furnace

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013147155A1 (en) * 2012-03-29 2013-10-03 日立金属株式会社 Method for producing carbon tool steel strip
JP5534492B2 (en) * 2012-03-29 2014-07-02 日立金属株式会社 Carbon tool steel strip manufacturing method
WO2019069510A1 (en) * 2017-10-05 2019-04-11 中外炉工業株式会社 Vertical heat-treating muffle furnace

Also Published As

Publication number Publication date
JPS6157894B2 (en) 1986-12-09

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