JPS56134051A - Continuous casting method for steel - Google Patents

Continuous casting method for steel

Info

Publication number
JPS56134051A
JPS56134051A JP3777780A JP3777780A JPS56134051A JP S56134051 A JPS56134051 A JP S56134051A JP 3777780 A JP3777780 A JP 3777780A JP 3777780 A JP3777780 A JP 3777780A JP S56134051 A JPS56134051 A JP S56134051A
Authority
JP
Japan
Prior art keywords
ingot
value
addition
steel
central segregation
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
JP3777780A
Other languages
Japanese (ja)
Inventor
Minoru Kitamura
Toshiyuki Soejima
Shinji Koyama
Junji Anpuu
Yasutaka Yao
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP3777780A priority Critical patent/JPS56134051A/en
Publication of JPS56134051A publication Critical patent/JPS56134051A/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

Landscapes

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

Abstract

PURPOSE:To decrease the central segregation of an ingot by specifying the Ca concn. in the steel and ingot drawing speed in a Ca addition method. CONSTITUTION:When the Ca concn. (ppm) in steel and the drawing speed (m/ min) of an ingot are defined as y, x, this method is so arranged as to satisfy the formula. If the lower limit of y is below this value, the degree of the central segregation of C, S remains at below 1/2 that when Ca is not added and there is virtually no effect of Ca addition. When the upper limit of y exceeds this value, the decrease in the segregation owing to Ca addition reaches a threshold, and this results in increased cost, production of a large amount of Ca-base inclusions and possible degradation of the ingot quality. Further, below this value in the lower limit of x, the productivity drops considerably. When the upper limit is over this value, the molten steel pool in a mold grows long and iron static pressure increases, thereby resulting in increase bulging of the ingot between rolls, promoted central segregation and lost stabilization effect by Ca addition.
JP3777780A 1980-03-24 1980-03-24 Continuous casting method for steel Pending JPS56134051A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3777780A JPS56134051A (en) 1980-03-24 1980-03-24 Continuous casting method for steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3777780A JPS56134051A (en) 1980-03-24 1980-03-24 Continuous casting method for steel

Publications (1)

Publication Number Publication Date
JPS56134051A true JPS56134051A (en) 1981-10-20

Family

ID=12506908

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3777780A Pending JPS56134051A (en) 1980-03-24 1980-03-24 Continuous casting method for steel

Country Status (1)

Country Link
JP (1) JPS56134051A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992009387A1 (en) * 1990-11-28 1992-06-11 Kawasaki Steel Corporation Process for continuous casting of ultralow-carbon aluminum-killed steel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992009387A1 (en) * 1990-11-28 1992-06-11 Kawasaki Steel Corporation Process for continuous casting of ultralow-carbon aluminum-killed steel

Similar Documents

Publication Publication Date Title
JPS56134051A (en) Continuous casting method for steel
GB1306982A (en) Process for the treatment of metal ingots
JPS56109146A (en) Mold for continuous casting of beam blank
JPS57115948A (en) Continuous casting method
JPS5614063A (en) Continuous casting method
JPS59202145A (en) Continuous casting method of steel
JPS5794450A (en) Method for administration of size of ingot width in continuous casting
JPS5762804A (en) Continuous casting method for cast steel ingot having excellent sour resisting characteristic
GB1197109A (en) Product and method for making Retarded Aging Rimmed Steel
JPS5540050A (en) Bulging control continuous casting method
JPS5514132A (en) Preventing method for oxygen entry of cast ingot in continuous casting and device thereof
Jie et al. Formation of hot-top segregation in steel ingot and effect of steel compositions
RU1677925C (en) Method of continuous casting of slabs
JPS56139268A (en) Continuous casting method
JPS5797843A (en) Production of continuously cast ingot having no central segregation
JPS5514133A (en) Producing apparatus of steel bar product
JPS5741847A (en) Production of clean and fine grain steel
SU1250384A1 (en) Method of continuous casting of steel
JPS57130740A (en) Ingot making method for steel
JPS5747509A (en) Controlling method for speed of direct rolling mill united with continuous casting machine
JPS55141513A (en) Reducing method for center segregation of continuously cast steel slab
GB1217787A (en) Method and apparatus for degassing iron-base melts
GB999642A (en) Method of making rimmed ingots
SU1315117A1 (en) Method of alloying in continuous casting
SU944759A1 (en) Metal continuous casting method