CN1139895A - 铸坯导向装置机架 - Google Patents

铸坯导向装置机架 Download PDF

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Publication number
CN1139895A
CN1139895A CN95191380A CN95191380A CN1139895A CN 1139895 A CN1139895 A CN 1139895A CN 95191380 A CN95191380 A CN 95191380A CN 95191380 A CN95191380 A CN 95191380A CN 1139895 A CN1139895 A CN 1139895A
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device frame
guiding device
strand
casting metal
metal guiding
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CN95191380A
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CN1064871C (zh
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弗雷泽·P·普莱修斯尼格
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Vodafone GmbH
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Mannesmann AG
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    • 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
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1287—Rolls; Lubricating, cooling or heating rolls while in use

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Forging (AREA)
  • Metal Rolling (AREA)
  • Extrusion Of Metal (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Surgical Instruments (AREA)
  • Electric Cable Installation (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

本发明涉及一种铸坯导向装置，用于生产扁坯、大钢坯、方钢坯等规格的铸坯，它能使铸坯在铸坯导向装置机架内定心地流动，并因而甚至在浇注速度达到6米/分时也能保证高的浇注可靠性。这一高度的浇注可靠性采用这样的铸坯导向装置机架来达到：其中的辊具有略凹的母线(铸坯的曲面)，从而出人意料地遏制了向窄侧方向的铸坯摆动，并因而使铸坯沿着铸坯中心流动的方向相对于中心线定心地流动。

Description

铸坯导向装置机架
本发明涉及一种铸坯导向装置机架，借助于它防止连续铸锭的摆动。
由先有技术，例如DE3627991C2已知铸坯导向装置机架，其中，辊的母线不是直线而是曲线。当结晶器出口横截面产生铸坯横截面，而这一横截面与矩形有明显差别时，便往往采用这种辊。
在矩形铸坯具有的铸坯厚度大于60至80毫米时，在铸坯导向装置机架中紧接在连续铸锭结晶器(第0段)下面，通常使用直母线的辊，其中，成对的互相对置的辊的母线彼此平行。
采用这种辊的铸坯导向装置机架，由于铸坯的摆动或颤动而限制了浇注速度，通常使用下列值：
-对于厚度230毫米的扁坯约1.8-2.0米/分
-对于厚度270毫米的大钢坯约1.5-1.7米/分
-对于规格100×100毫米的方钢坯约1.5-1.7米/分。
本发明的目的是制成矩形铸坯用的铸坯导向装置机架的辊，其中，辊设计为能遏制铸坯的摆动或颤动。
此目的通过权利要求1的特征达到。从属权利要求中包含了有利的设计。业已证实，在使用具有矩形横截面和圆柱形导向辊的连续铸锭结晶器时(这是大多数当前在世界范围使用的连续铸锭设备中的情况)浇注速度不允许超过规定的上限值，因为要不然铸坯裂12的数量会超比例地增加。造成这一后果的原因在于，从某个浇注速度起铸坯开始摆动，也就是说，它在导向辊之间来回运动。这导致偏斜和铸坯向结晶器出口横截面的周围不均匀地散热，并必将产生应力裂纹和铸坯断口。
业已出人意意地证实，铸坯轻度的曲面遏制了摆动。在这种情况下，铸坯直接在结晶器的出口后，由于仍为液态的芯部和较薄的铸坯外壳厚度，所以它立即扩展到由辊的凹形母线规定的量。也就是说贴靠在辊上并获得一种导引，这种导引遏制了摆动，或如文献中所介绍的那样也称为“蛇行(snaking)”。
曲面沿铸坯宽度的一部分或沿铸坯宽度的全部延伸。铸坯的总膨胀量应为8％，最好应为2-4％。采用更大的值达不到改善导向的目的，相反却产生不必要的轧制费用。曲面沿铸坯的全部宽度(它在2-4％范围内)，大大改善了用于后继轧制的出口横截面，并满足后面的轧机的要求。有意义的是，铸坯的曲面通过例如直至铸坯导向装置机架末端的凹的辊、或通过适当地安排在铸坯导向区内分开的辊、或通过在弹性范围内弯曲铸坯导向装置机架和/或辊来获得。
借助于本发明，不仅可以对于新的设备相应地提高浇注速度，而且对于现有的设备通过用适当弯曲成拱形的辊来改装，可以将浇注速度相对于在前言中所提到的值提高达200％，与此同时提高浇注可靠性。

Claims (5)

1.矩形铸坯用的铸坯导向装置机架具有成对的互相对置的导向和推动辊，其中，辊具有略凹的母线，它可以使从连续铸锭结晶器出来后有矩形出口横截面的铸坯鼓胀成球形，因此铸坯可获得精确的导引和不发生铸坯的摆动。
2.按照权利要求1所述之铸坯导向装置机架，其特征为：凹的母线只设计在铸坯宽度的一部分上，最好是铸坯宽度的40％。
3.按照前列诸权利要求之一所述之铸坯导向装置机架，其特征为：凹的母线它的最大值不超过铸坯厚度的8％，最好2-4％。
4.按照权利要求1至3*所述之铸坯导向装置机架，其特征为：铸坯的曲面通过在浇注负荷作用下在弹性范围内适当地弯曲铸坯导向装置机架获得。
5.按照前列诸权利要求之一所述之铸坯导向装置机架，其特征为：采用这种铸坯导向装置机架改装已经存在的连续铸锭设备。
CN951913808A 1994-01-28 1995-01-19 铸坯导向装置机架 Expired - Fee Related CN1064871C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4403047A DE4403047C1 (de) 1994-01-28 1994-01-28 Strangführungsgerüst
DEP4403047.9 1994-01-28

Publications (2)

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CN1139895A true CN1139895A (zh) 1997-01-08
CN1064871C CN1064871C (zh) 2001-04-25

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US (1) US6070648A (zh)
EP (1) EP0741618B1 (zh)
JP (1) JP3069375B2 (zh)
CN (1) CN1064871C (zh)
AT (1) ATE196106T1 (zh)
AU (1) AU1453395A (zh)
CA (1) CA2182020A1 (zh)
DE (2) DE4403047C1 (zh)
ES (1) ES2149343T3 (zh)
WO (1) WO1995020446A1 (zh)
ZA (1) ZA95674B (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPO928797A0 (en) * 1997-09-19 1997-10-09 Bhp Steel (Jla) Pty Limited Strip steering
DE19841841C2 (de) * 1998-03-09 2000-08-10 Sms Demag Ag Führungselement einer Stranggießanlage
EP3235579B2 (de) * 2016-04-18 2023-08-30 SMS Group GmbH Strangführungseinrichtung und verfahren zum stützen eines giessstrangs
TWI717229B (zh) 2020-03-11 2021-01-21 和碩聯合科技股份有限公司 筆記型電腦的機殼及筆記型電腦

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT335650B (de) * 1975-05-13 1977-03-25 Voest Ag Fur stranggiessanlagen bestimmte strangfuhrung
AT338984B (de) * 1975-11-12 1977-09-26 Voest Ag Stutz- und fuhrungsgerust, insbesondere stutz- und fuhrungsbogen fur brammengussstrange
AT379093B (de) * 1984-02-16 1985-11-11 Voest Alpine Ag Durchlaufkokille fuer eine stranggiessanlage
JPS629758A (ja) * 1985-07-05 1987-01-17 Sumitomo Metal Ind Ltd 連続鋳造機
JPS62148064A (ja) * 1985-12-24 1987-07-02 Kobe Steel Ltd 鋳片案内装置
DE3627991A1 (de) * 1986-08-18 1988-02-25 Mannesmann Ag Verfahren zum stranggiessen von brammen und einrichtung zur durchfuehrung des verfahrens
JPH0763824B2 (ja) * 1987-05-18 1995-07-12 住友金属工業株式会社 連続鋳造機用引抜矯正装置
GB8814331D0 (en) * 1988-06-16 1988-07-20 Davy Distington Ltd Continuous casting of steel
JP2949711B2 (ja) * 1989-02-08 1999-09-20 住友金属工業株式会社 未凝固圧下用連鋳ロール
JPH0489161A (ja) * 1990-07-30 1992-03-23 Nkk Corp 連続鋳造機ロールの使用方法
SU1771870A1 (ru) * 1991-01-14 1992-10-30 Mariupolskij Metall I Cпocoб heпpepыbhoй paзлиbkи зaгotobok пpяmoугoльhoгo ceчehия
JPH0790330B2 (ja) * 1992-01-14 1995-10-04 川崎重工業株式会社 水平連続鋳造装置
JPH05245604A (ja) * 1992-03-05 1993-09-24 Kawasaki Steel Corp 連続鋳造方法
IT1262073B (it) * 1993-02-16 1996-06-19 Danieli Off Mecc Lingottiera per colata continua di bramme sottili

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Publication number Publication date
DE59508704D1 (de) 2000-10-12
CN1064871C (zh) 2001-04-25
DE4403047C1 (de) 1995-08-10
CA2182020A1 (en) 1995-08-03
JPH09508069A (ja) 1997-08-19
ZA95674B (en) 1996-02-07
WO1995020446A1 (de) 1995-08-03
AU1453395A (en) 1995-08-15
US6070648A (en) 2000-06-06
JP3069375B2 (ja) 2000-07-24
EP0741618A1 (de) 1996-11-13
ES2149343T3 (es) 2000-11-01
ATE196106T1 (de) 2000-09-15
EP0741618B1 (de) 2000-09-06

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