BR112015019860A2 - method of manufacturing continuous casting steel product using continuous casting machine - Google Patents

method of manufacturing continuous casting steel product using continuous casting machine

Info

Publication number
BR112015019860A2
BR112015019860A2 BR112015019860A BR112015019860A BR112015019860A2 BR 112015019860 A2 BR112015019860 A2 BR 112015019860A2 BR 112015019860 A BR112015019860 A BR 112015019860A BR 112015019860 A BR112015019860 A BR 112015019860A BR 112015019860 A2 BR112015019860 A2 BR 112015019860A2
Authority
BR
Brazil
Prior art keywords
continuous casting
casting steel
mold
steel
seconds
Prior art date
Application number
BR112015019860A
Other languages
Portuguese (pt)
Other versions
BR112015019860B1 (en
Inventor
Tsutsumi Koichi
Nabeshima Seiji
Miki Yuji
Awajiya Yutaka
Original Assignee
Jfe 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 Jfe Steel Corp filed Critical Jfe Steel Corp
Publication of BR112015019860A2 publication Critical patent/BR112015019860A2/en
Publication of BR112015019860B1 publication Critical patent/BR112015019860B1/en

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
    • 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
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/22—Controlling or regulating processes or operations for cooling cast stock or mould
    • 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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/051—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds into moulds having oscillating walls
    • 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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling

Landscapes

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

Abstract

resumo patente de invenção: "método para fabricar produto de aço de fundição contínua com uso de máquina de fundição contínua". a presente invenção refere-se a um método para produzir um produto de aço de fundição contínua com uso de uma máquina de fundição contínua, em que um produto de aço de fundição contínua com rachaduras reduzidas de superfície pode ser obtido sem diminuir a produtividade, até mesmo com o uso de aço derretido que tem uma composição química especificada. o método revelado inclui: submeter o aço derretido a resfriamento primário em um molde, sendo que o aço derretido contém 0,13% em massa ou mais e 0,20% em massa ou menos de c e 0,50% em massa ou mais de mn; retirar um aço de fundição contínua do molde a uma taxa de remoção de 1,0 m/min ou maior; e submeter o aço de fundição contínua a resfriamento secundário incluindo fazer com que a temperatura de superfície do aço de fundição contínua caia abaixo do ponto de transformação de ar3 e, então, suba novamente acima do ponto de transformação de ac3, em que o molde é oscilado sob condições de oscilação que satisfazem um tempo de desmolde negativo, tn, de 0,08 segundo ou mais e 0,20 segundo ou menos e uma razão de tempo de desmolde negativo, rns, de 0,30 ou mais e 0,38 ou menos, e em que o tempo a partir de quando o aço de fundição contínua passa através do molde até a temperatura de superfície do aço de fundição contínua alcançar o ponto de transformação de ar3 é mais do que 60 segundos.Patent specification: "Method for manufacturing continuous casting steel product using continuous casting machine". The present invention relates to a method for producing a continuous casting steel product using a continuous casting machine, wherein a continuous casting steel product with reduced surface cracks can be obtained without decreasing productivity, up to even using molten steel that has a specified chemical composition. The disclosed method includes: subjecting the molten steel to primary cooling in a mold, wherein the molten steel contains 0.13 mass% or more and 0.20 mass% or less and 0.50 mass% or more. mn; remove a continuous casting steel from the mold at a removal rate of 1.0 m / min or greater; and subjecting the continuous casting steel to secondary cooling including causing the surface temperature of the continuous casting steel to fall below the transformation point of air 3 and then rise again above the transformation point of ac3, where the mold is oscillated under oscillating conditions satisfying a negative demolding time, tn, of 0.08 seconds or more and 0.20 seconds or less and a negative demolding time ratio, rns, of 0.30 or more and 0.38 or less, and wherein the time from when the continuous casting steel passes through the mold until the surface temperature of the continuous casting steel reaches the air transformation point 3 is more than 60 seconds.

BR112015019860-0A 2015-04-06 2015-06-12 method for making continuous casting steel product using continuous casting machine BR112015019860B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2015-077893 2015-04-06
JP2015077893A JP5896067B1 (en) 2015-04-06 2015-04-06 Method for producing slabs using a continuous casting machine
PCT/JP2015/002963 WO2016162906A1 (en) 2015-04-06 2015-06-12 Method for manufacturing slab using continuous casting machine

Publications (2)

Publication Number Publication Date
BR112015019860A2 true BR112015019860A2 (en) 2017-07-18
BR112015019860B1 BR112015019860B1 (en) 2021-01-12

Family

ID=55628591

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112015019860-0A BR112015019860B1 (en) 2015-04-06 2015-06-12 method for making continuous casting steel product using continuous casting machine

Country Status (5)

Country Link
JP (1) JP5896067B1 (en)
KR (1) KR101949351B1 (en)
CN (1) CN107427907A (en)
BR (1) BR112015019860B1 (en)
WO (1) WO2016162906A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106623881B (en) * 2016-12-28 2018-05-15 安徽工业大学 A kind of tundish of controllable lower flexure strain
TW202033292A (en) * 2018-12-10 2020-09-16 日商日本製鐵股份有限公司 Continuous casting method for steel

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS583755A (en) * 1981-06-30 1983-01-10 Kawasaki Steel Corp Preventing method for cracking of side surface of continuously cast slab
JP3008825B2 (en) 1995-08-08 2000-02-14 住友金属工業株式会社 Slab surface crack suppression method
JP3058079B2 (en) * 1996-02-23 2000-07-04 住友金属工業株式会社 Steel continuous casting method
JP3463550B2 (en) 1998-01-09 2003-11-05 住友金属工業株式会社 Method of preventing surface cracks in continuous cast slab
JP4527693B2 (en) * 2006-07-26 2010-08-18 株式会社神戸製鋼所 Continuous casting method of high Al steel slab
CN101633038B (en) * 2009-05-26 2011-10-12 山西太钢不锈钢股份有限公司 Method for reducing surface defect of stainless steel continues casting blank
CN103008594A (en) * 2012-12-30 2013-04-03 南阳汉冶特钢有限公司 Method for removing transverse corner cracks of extremely thick continuous casting billet
JP5928413B2 (en) * 2013-06-25 2016-06-01 Ｊｆｅスチール株式会社 Steel continuous casting method

Also Published As

Publication number Publication date
JP5896067B1 (en) 2016-03-30
CN107427907A (en) 2017-12-01
JP2016196035A (en) 2016-11-24
KR20170105075A (en) 2017-09-18
WO2016162906A1 (en) 2016-10-13
KR101949351B1 (en) 2019-02-18
BR112015019860B1 (en) 2021-01-12

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Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according art. 34 industrial property law
B06U Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure
B09A Decision: intention to grant
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 12/06/2015, OBSERVADAS AS CONDICOES LEGAIS.