JPS55128520A - Measuring of property of converter slag - Google Patents

Measuring of property of converter slag

Info

Publication number
JPS55128520A
JPS55128520A JP3638079A JP3638079A JPS55128520A JP S55128520 A JPS55128520 A JP S55128520A JP 3638079 A JP3638079 A JP 3638079A JP 3638079 A JP3638079 A JP 3638079A JP S55128520 A JPS55128520 A JP S55128520A
Authority
JP
Japan
Prior art keywords
slag
molten slag
molten
electric resistance
forming ratio
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
JP3638079A
Other languages
Japanese (ja)
Inventor
Noriaki Nagao
Yoshinobu Hiwatari
Koji Ieda
Kenichi Kinoshita
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
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP3638079A priority Critical patent/JPS55128520A/en
Publication of JPS55128520A publication Critical patent/JPS55128520A/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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/36—Processes yielding slags of special composition

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)

Abstract

PURPOSE:To decide the slag forming ratio of a molten slag rapidly as well as easily by a method wherein a sub-lance equipped with an electrode made from Mo or Fe is inserted into a molten slag of an oxygen blowing up converter to measure the electric resistance of a molten slag. CONSTITUTION:Two electrodes 2a, 2b made from Mo of which a diameter is 2mm and a length is 10mm are attached to a bottom surface 1a or a side surface of a paper cylinder 1 with a bottom at a distance of 10mm. Fe may be used in place of Mo. The lead wires 3a, 3b of two electrode 2a, 2b is withdrawn to the furnace exterior through a paper cylinder 1 and connected to a vacuum voltameter 4 and a millivoltameter 5 to measure the electric resistance of a molten slag. Because a significantly high mutyal relation is present between the electric resistance of a molten slag and the slag forming ratio of a molten slag, the slag forming ratio is rapidly decided by the measured resistance value. But, this method can be only utilized when a C ontent of a molten steel is below 0.15%.
JP3638079A 1979-03-27 1979-03-27 Measuring of property of converter slag Pending JPS55128520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3638079A JPS55128520A (en) 1979-03-27 1979-03-27 Measuring of property of converter slag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3638079A JPS55128520A (en) 1979-03-27 1979-03-27 Measuring of property of converter slag

Publications (1)

Publication Number Publication Date
JPS55128520A true JPS55128520A (en) 1980-10-04

Family

ID=12468232

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3638079A Pending JPS55128520A (en) 1979-03-27 1979-03-27 Measuring of property of converter slag

Country Status (1)

Country Link
JP (1) JPS55128520A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH049514U (en) * 1990-05-15 1992-01-28
CN108342538A (en) * 2018-04-08 2018-07-31 山东钢铁股份有限公司 A method of improving the accurate measurement carbon content of TSO revolving furnace sublance probes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH049514U (en) * 1990-05-15 1992-01-28
CN108342538A (en) * 2018-04-08 2018-07-31 山东钢铁股份有限公司 A method of improving the accurate measurement carbon content of TSO revolving furnace sublance probes
CN108342538B (en) * 2018-04-08 2020-02-18 山东钢铁股份有限公司 Method for improving carbon content of TSO converter sublance probe to be measured accurately

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