JPS56128648A - Continuous casting method - Google Patents

Continuous casting method

Info

Publication number
JPS56128648A
JPS56128648A JP3291980A JP3291980A JPS56128648A JP S56128648 A JPS56128648 A JP S56128648A JP 3291980 A JP3291980 A JP 3291980A JP 3291980 A JP3291980 A JP 3291980A JP S56128648 A JPS56128648 A JP S56128648A
Authority
JP
Japan
Prior art keywords
flow
pouring
molten steel
weir
ladle
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
JP3291980A
Other languages
Japanese (ja)
Inventor
Toshiaki Komiya
Motoki Yoshida
Norio Katsuyama
Junichi Wakita
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 JP3291980A priority Critical patent/JPS56128648A/en
Publication of JPS56128648A publication Critical patent/JPS56128648A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • B22D11/116—Refining the metal
    • B22D11/118—Refining the metal by circulating the metal under, over or around weirs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

PURPOSE: To effectively float contained inclusions by placing an intermediate ladle provided with a lower weir and an upper weir successively between a ladle and a mold and horizontally moving the rectified laminar flow after the passage of the upper gate for more than a specified length at lower than a specific speed then pouring the same into the mold at the time of pouring the molten steel from the ladle to the mold.
CONSTITUTION: When a lower weir 4 and an upper weir 5 are provided successively to an intermediate ladle 1, the bottom flow A formed by the pouring flow of molten steel is shut off and turns to ascending flow B. Stirring motion is formed by this ascending flow B and the coalescence of the inclusions contd. in the molten steel is accelerated and are floated up by increasing buoyancy, until they are adsorbed on a slag layer 7. While the molten steel passes this upper weir 5 and reaches a pouring port 3, the residual inclusions assume the rectified layer E in which they are easy to float. However, the effect thereof is guaranteed by securing more than 600mm distance of the rectified laminar flow E at a ≤8cm/sec speed. Here, the velosity of flow is calculated by the velocity of flow of the rectified laminar flow (cm/sec) = rate of pouring (cm3/sec)/the average sectional area (cm2) of the intermediate ladle at a minimum molten steel level.
COPYRIGHT: (C)1981,JPO&Japio
JP3291980A 1980-03-15 1980-03-15 Continuous casting method Pending JPS56128648A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3291980A JPS56128648A (en) 1980-03-15 1980-03-15 Continuous casting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3291980A JPS56128648A (en) 1980-03-15 1980-03-15 Continuous casting method

Publications (1)

Publication Number Publication Date
JPS56128648A true JPS56128648A (en) 1981-10-08

Family

ID=12372300

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3291980A Pending JPS56128648A (en) 1980-03-15 1980-03-15 Continuous casting method

Country Status (1)

Country Link
JP (1) JPS56128648A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4828014A (en) * 1985-12-13 1989-05-09 Inland Steel Company Continuous casting tundish and assembly
CN101869970A (en) * 2010-05-31 2010-10-27 莱芜钢铁集团有限公司 Continuous casting tundish slag blocking wall of composite material and production technology
CN102847923A (en) * 2011-06-28 2013-01-02 宝山钢铁股份有限公司 Pouring basket with molten steel purity stably improved under low argon consumption and metallurgical method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4828014A (en) * 1985-12-13 1989-05-09 Inland Steel Company Continuous casting tundish and assembly
CN101869970A (en) * 2010-05-31 2010-10-27 莱芜钢铁集团有限公司 Continuous casting tundish slag blocking wall of composite material and production technology
CN102847923A (en) * 2011-06-28 2013-01-02 宝山钢铁股份有限公司 Pouring basket with molten steel purity stably improved under low argon consumption and metallurgical method thereof
CN102847923B (en) * 2011-06-28 2015-04-22 宝山钢铁股份有限公司 Tundish with molten steel purity stably improved under low argon consumption and metallurgical method thereof

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