JPS55141515A - Vacuum degassing method of molten steel - Google Patents

Vacuum degassing method of molten steel

Info

Publication number
JPS55141515A
JPS55141515A JP4837679A JP4837679A JPS55141515A JP S55141515 A JPS55141515 A JP S55141515A JP 4837679 A JP4837679 A JP 4837679A JP 4837679 A JP4837679 A JP 4837679A JP S55141515 A JPS55141515 A JP S55141515A
Authority
JP
Japan
Prior art keywords
reflux
molten steel
vacuum degassing
degassing tank
numerically
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
JP4837679A
Other languages
Japanese (ja)
Inventor
Takuo Imai
Takayasu Yamada
Kazuhisa Hamagami
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 JP4837679A priority Critical patent/JPS55141515A/en
Publication of JPS55141515A publication Critical patent/JPS55141515A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

PURPOSE:To cause reflux so as to permit degassing under optimum conditions by measuring the accelerations of the vibrations produced in a vacuum degassing tank and other vibration elements with the detector mounted to the vacuum-degassing tank and numerically supervising the reflux condition of the molten steel. CONSTITUTION:A piezoelectric element 9 as a vibration detecting element is mounted to the top end of an RH type vacuum degassing tank 1 and the vibration elements of the degassing tank 1 measured in the four vibration directions shown by the arrow a, b, c, d, i.e., accelerations, amplitudes or frequencies, are measured and the relations with the flow of the blown gas are obtained, whereby the reflux condition of the molten steel is numerically known. Thence, while the reflux condition is being numerically supervised from the above measurements, the reflux amount of the molten steel is quantitatively controlled by the gas flowing amount for reflux, whereby the vacuum degassing is accomplished.
JP4837679A 1979-04-18 1979-04-18 Vacuum degassing method of molten steel Pending JPS55141515A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4837679A JPS55141515A (en) 1979-04-18 1979-04-18 Vacuum degassing method of molten steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4837679A JPS55141515A (en) 1979-04-18 1979-04-18 Vacuum degassing method of molten steel

Publications (1)

Publication Number Publication Date
JPS55141515A true JPS55141515A (en) 1980-11-05

Family

ID=12801595

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4837679A Pending JPS55141515A (en) 1979-04-18 1979-04-18 Vacuum degassing method of molten steel

Country Status (1)

Country Link
JP (1) JPS55141515A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02104610A (en) * 1988-10-12 1990-04-17 Sumitomo Metal Ind Ltd Instrument for detecting circulating condition of molten metal
JPH02111813A (en) * 1988-10-19 1990-04-24 Sumitomo Metal Ind Ltd Method for controlling circulating flow condition of molten metal
EP0949339A1 (en) * 1998-04-06 1999-10-13 Thyssen Krupp Stahl AG RH vacuum process with controlled circulation rate for the decarburization of steel melts

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02104610A (en) * 1988-10-12 1990-04-17 Sumitomo Metal Ind Ltd Instrument for detecting circulating condition of molten metal
JPH02111813A (en) * 1988-10-19 1990-04-24 Sumitomo Metal Ind Ltd Method for controlling circulating flow condition of molten metal
EP0949339A1 (en) * 1998-04-06 1999-10-13 Thyssen Krupp Stahl AG RH vacuum process with controlled circulation rate for the decarburization of steel melts

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