CN1057241C - 铸坯导向装置机架的辊 - Google Patents
铸坯导向装置机架的辊 Download PDFInfo
- Publication number
- CN1057241C CN1057241C CN95191378A CN95191378A CN1057241C CN 1057241 C CN1057241 C CN 1057241C CN 95191378 A CN95191378 A CN 95191378A CN 95191378 A CN95191378 A CN 95191378A CN 1057241 C CN1057241 C CN 1057241C
- Authority
- CN
- China
- Prior art keywords
- roller
- strand
- casting
- bus
- guiding device
- 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.)
- Expired - Fee Related
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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
- B22D11/12—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)
- Metal Rolling (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Wire Processing (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
- Forging (AREA)
- Forwarding And Storing Of Filamentary Material (AREA)
Abstract
本发明涉及一种铸坯导向装置机架的辊,用于生产扁坯、大钢坯和方钢坯等规格的铸坯,它们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(铸坯成拱形),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
本发明涉及一种铸坯导向装置机架的辊,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,则往往采用这种辊。
在铸坯厚度大于60至80毫米的矩形铸坯的情况下,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2.5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。
出人意料地证实,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,因为要不然铸坯裂口的数量会超比例地增加。造成这一后果的原因是在于,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。
业已出人意料地证实,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)”。
辊的凹形母线可沿铸坯宽度的一部分或沿铸坯的全部宽度延伸。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。辊的凹形母线沿整个铸坯宽度(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末端的凹的辊、或通过在铸坯导向装置机架内适当地排列分开的辊、或通过浇注负荷在弹性范围内弯曲辊来保持。
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设计的辊经过改装,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 (4)
1.矩形铸坯的铸坯导向装置机架的辊具有成对的互相对置的导向和推动辊,其中,辊至少在负荷作用下具有略凹的母线,此母线最大值不超过铸坯厚度的8%。
2.按照权利要求1所述之辊,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%,以及,母线的最大值不超过铸坯厚度的2至4%。
3.按照前列诸权利要求之一所述之辊,其特征为:铸坯的曲面通过适当安排分开的辊来获得。
4.按照前列诸权利要求之一所述之辊,其特征为:有关辊的材料和它的直径按下列方式设计:通过辊在浇注负荷下在弹性范围内适当的弯曲,能获得铸坯所要求的曲面。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4403046.0 | 1994-01-28 | ||
DE4403046A DE4403046C1 (de) | 1994-01-28 | 1994-01-28 | Rolle für ein Strangführungsgerüst |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1139894A CN1139894A (zh) | 1997-01-08 |
CN1057241C true CN1057241C (zh) | 2000-10-11 |
Family
ID=6509212
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN95191378A Expired - Fee Related CN1057241C (zh) | 1994-01-28 | 1995-01-19 | 铸坯导向装置机架的辊 |
Country Status (11)
Country | Link |
---|---|
US (1) | US6070646A (zh) |
EP (1) | EP0741619B1 (zh) |
JP (1) | JP2994757B2 (zh) |
CN (1) | CN1057241C (zh) |
AT (1) | ATE196617T1 (zh) |
AU (1) | AU1453695A (zh) |
CA (1) | CA2182021A1 (zh) |
DE (2) | DE4403046C1 (zh) |
ES (1) | ES2149965T3 (zh) |
WO (1) | WO1995020447A1 (zh) |
ZA (1) | ZA95675B (zh) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19841841C2 (de) * | 1998-03-09 | 2000-08-10 | Sms Demag Ag | Führungselement einer Stranggießanlage |
EP0941787B1 (de) * | 1998-03-09 | 2005-09-28 | SMS Demag AG | Führungselement einer Stranggiessanlage |
AUPQ291199A0 (en) * | 1999-09-17 | 1999-10-07 | Bhp Steel (Jla) Pty Limited | Strip casting |
KR101353772B1 (ko) * | 2011-12-14 | 2014-01-22 | 주식회사 포스코 | 주편사행방지장치 및 방법 |
CN109086581B (zh) * | 2013-03-15 | 2021-11-05 | 美国邮政管理局 | 身份验证***和方法 |
EP3235579B2 (de) * | 2016-04-18 | 2023-08-30 | SMS Group GmbH | Strangführungseinrichtung und verfahren zum stützen eines giessstrangs |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
-
1994
- 1994-01-28 DE DE4403046A patent/DE4403046C1/de not_active Expired - Fee Related
-
1995
- 1995-01-19 CN CN95191378A patent/CN1057241C/zh not_active Expired - Fee Related
- 1995-01-19 EP EP95906270A patent/EP0741619B1/de not_active Expired - Lifetime
- 1995-01-19 DE DE59508759T patent/DE59508759D1/de not_active Expired - Fee Related
- 1995-01-19 JP JP7519824A patent/JP2994757B2/ja not_active Expired - Lifetime
- 1995-01-19 ES ES95906270T patent/ES2149965T3/es not_active Expired - Lifetime
- 1995-01-19 AU AU14536/95A patent/AU1453695A/en not_active Abandoned
- 1995-01-19 AT AT95906270T patent/ATE196617T1/de not_active IP Right Cessation
- 1995-01-19 WO PCT/DE1995/000096 patent/WO1995020447A1/de active IP Right Grant
- 1995-01-19 US US08/682,668 patent/US6070646A/en not_active Expired - Fee Related
- 1995-01-19 CA CA002182021A patent/CA2182021A1/en not_active Abandoned
- 1995-01-27 ZA ZA95675A patent/ZA95675B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
CN1139894A (zh) | 1997-01-08 |
EP0741619B1 (de) | 2000-09-27 |
CA2182021A1 (en) | 1995-08-03 |
JPH09508071A (ja) | 1997-08-19 |
AU1453695A (en) | 1995-08-15 |
ZA95675B (en) | 1996-02-07 |
DE59508759D1 (de) | 2000-11-02 |
ES2149965T3 (es) | 2000-11-16 |
JP2994757B2 (ja) | 1999-12-27 |
US6070646A (en) | 2000-06-06 |
ATE196617T1 (de) | 2000-10-15 |
DE4403046C1 (de) | 1995-08-17 |
EP0741619A1 (de) | 1996-11-13 |
WO1995020447A1 (de) | 1995-08-03 |
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C19 | Lapse of patent right due to non-payment of the annual fee | ||
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