GB1402640A - Withdrawing a continuous casting - Google Patents

Withdrawing a continuous casting

Info

Publication number
GB1402640A
GB1402640A GB3087972A GB3087972A GB1402640A GB 1402640 A GB1402640 A GB 1402640A GB 3087972 A GB3087972 A GB 3087972A GB 3087972 A GB3087972 A GB 3087972A GB 1402640 A GB1402640 A GB 1402640A
Authority
GB
United Kingdom
Prior art keywords
roll
rolls
units
strand
thickness
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
Application number
GB3087972A
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.)
Concast AG
Schloemann AG
Original Assignee
Concast AG
Schloemann AG
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
Priority to DE2133144A priority Critical patent/DE2133144B2/de
Application filed by Concast AG, Schloemann AG filed Critical Concast AG
Publication of GB1402640A publication Critical patent/GB1402640A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16Controlling or regulating processes or operations
    • B22D11/20Controlling or regulating processes or operations for removing cast stock
    • B22D11/208Controlling or regulating processes or operations for removing cast stock for aligning the guide rolls
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12Accessories for subsequent treating or working cast stock in situ
    • B22D11/128Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1282Vertical casting and curving the cast stock to the horizontal

Abstract

1402640 Continuous casting; rolling SCHLOEMANNAG 30 June 1972 [3 July 1971] 30879/72 Headings B3F and B3M [Also in Division B8] The pressure applied by each pair of rolls of a withdrawing or a withdrawing and straightening apparatus (e.g. the former having six sections each with three pairs of rolls) when the casting thickness falls below a prescribed thickness or a thin dummy bar is fed or withdrawn, is only that required for producing the necessary traction, but when that thickness is exceeded the pressure is raised to reduce the casting to the prescribed thickness. It may be desirable to reduce the thickness of the strand progressively between consecutive pairs of rolls or consecutive roll sections. In an arrangement for carrying out the process, piston-and-cylinder units 5, shown in Fig. 2, as applied to yoked rolls but applicable to single rolls, Fig. 1 (not shown), may draw upper driving rolls towards lower idling or driven rolls whose bearings are fixed in position, there being stops 6 on the piston-rods coacting with replaceable abutment pieces 7 which limit the minimum roll gap, determined by the units 5, to the prescribed casting thickness. To obtain a smaller roll gap for driving a dummy bar or undersized strand, thrustor cylinders 10 may be mounted on pistons 12 fixed on the piston-rods of units 5 to draw, with less force, the upper rolls down. A thrustor cylinder, of a roll contacting a thin dummy bar, because the friction is less than that of contact with the casting 1, may be capable of developing greater pressure than the others until the pressure is reduced by a monitor when the (large) dummy head approaches or passes. Instead of cylinders 10, stacks of Belleville washers on the rods may provide the thrust. Instead of a pair of units 5 being applied to the end of a single roll, Fig. 1 (not shown), it may be applied to a pivot 24, Fig. 2, of a tiltable yoke 25 extending across the cast strand and holding three idling reaction rolls 21, there being a lower set of an idling, fixed-bearing roll 22 and two driven rolls 23 mounted on titltable chocks 26. As well as or instead of the units 5 acting on the yoke, each end of a driven roll 23 is raised by a piston 31 of a differential ram 27 until the piston contacts an abutment 32 and the roll 23 is raised to a prescribed strand surface plane 35. If the strand thickness falls, a smaller thrust raises an auxiliary buffer piston 34 to lift the roll 23 beyond the plane 35 to supply sufficient traction. Instead of the differential ram, a spring-loaded thrustor may be used as a support. The driven rolls 23 and the reaction rolls 21 may be supported by the units 5 and thrustors 10 or by the rams 27. In another modification of the arrangement, Fig. 4 (not shown), there are only two rolls mounted in a tiltable yoke drawn downwards, by units 5 and thrustors 10. To prevent a roll, which is lowered because of a narrowing of the strand, from squeezing the strand, there is a pair of piston-and-cylinder units (48) to each roll, in opposition to the pull of the units 5. A detector (49) associated with each pair of units (48) monitors the position of the associated roll and the signals from the detectors are automatically compared with one another and each with a signal representing the prescribed thickness. When one roll is in a position outside that corresponding to that thickness, the units (48) associated with the other roll oppose the yoke pressure to reduce the pressure of that roll to that required for withdrawal although the first roll will apply a strand-reducing pressure. In another arrangement, without units 5 with stops and thrustors 10, a pair of cylinder-andpiston units 53, Fig. 5, connected to the bearings of one of a pair of rolls 51, 52 (one is driven), adjusts the roll spacing. The bottom roll 52 may be supported like a roll 23 in Fig. 2. At least one position-reporting device 54 at one end of that one roll 51 generates a signal corresponding to the actual thickness of the strand where the roll contacts the strand. A unit 56 compares the signal with a reference related to the desired thickness and the difference is applied as a controlling signal, to a servo-unit 58 for controlling the fluid of the units 53 so that the rolls apply the required contact pressure according to the actual strand thickness and to signals 59 of other parameters, such as strand width if the plant is adjustable for different cross-sections. For feeding-in the dummy bar, a signal 57 for its thickness is provided. Instead of measuring the strand thickness at the rolls, it may be measured by monitors located upstream of the controlled rolls.
GB3087972A 1971-07-03 1972-06-30 Withdrawing a continuous casting Expired GB1402640A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2133144A DE2133144B2 (en) 1971-07-03 1971-07-03

Publications (1)

Publication Number Publication Date
GB1402640A true GB1402640A (en) 1975-08-13

Family

ID=5812577

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3087972A Expired GB1402640A (en) 1971-07-03 1972-06-30 Withdrawing a continuous casting

Country Status (19)

Country Link
US (1) US3812900A (en)
JP (1) JPS5219168B1 (en)
AT (1) AT328638B (en)
AU (1) AU474088B2 (en)
BE (1) BE785587A (en)
BR (1) BR7204366D0 (en)
CA (1) CA981415A (en)
DD (1) DD96870A5 (en)
DE (1) DE2133144B2 (en)
DK (1) DK129219C (en)
ES (1) ES404804A1 (en)
FR (1) FR2144861B1 (en)
GB (1) GB1402640A (en)
IT (1) IT960120B (en)
LU (1) LU65645A1 (en)
NL (1) NL160748C (en)
SE (1) SE395381B (en)
YU (1) YU172972A (en)
ZA (1) ZA7204560B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0177796A2 (en) * 1984-10-10 1986-04-16 Sms Schloemann-Siemag Aktiengesellschaft Method of and installation for guiding and straightening a cast strand in the straight- and outlet region of a curved continuous casting plant

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5916862B2 (en) * 1973-03-26 1984-04-18 Nippon Kokan Kk
JPS5422777B2 (en) * 1973-09-17 1979-08-09
US4090549A (en) * 1974-07-12 1978-05-23 United States Steel Corporation Method and mechanism for determining forces on a solidifying casting
DE2439359C3 (en) * 1974-08-16 1982-10-07 Sms Schloemann-Siemag Ag, 4000 Duesseldorf, De
US4134440A (en) * 1974-09-16 1979-01-16 Nippon Kokan Kabushiki Kaisha Method of continuously casting steel
AT344346B (en) * 1975-04-30 1978-07-10 Voest Ag DEVICE FOR LEADING A CAST RAND
AT341698B (en) * 1975-10-16 1978-02-27 Voest Ag SUPPORT BEND AND GUIDE BEND FOR CAST ROD, IN PARTICULAR FOR CAST ROD
AT338984B (en) * 1975-11-12 1977-09-26 Voest Ag Support and guide framework, in particular support and guide bends for slab cast rods
AT343833B (en) * 1976-01-27 1978-06-26 Voest Ag DRIVE ROLLER FRAME FOR CONTINUOUS CASTING PLANTS
FR2358224B1 (en) * 1976-07-16 1978-12-22 Clesid Sa
DE2740221C2 (en) * 1977-09-07 1984-09-06 Concast Ag, Zuerich, Ch
AT368419B (en) * 1978-09-19 1982-10-11 Voest Alpine Ag String guidance for continuous casting plants
AT362542B (en) * 1979-10-01 1981-05-25 Voest Alpine Ag Arc continuous casting machine
DE2941373C2 (en) * 1979-10-12 1988-08-11 Sms Schloemann-Siemag Ag, 4000 Duesseldorf, De
DE3106531A1 (en) * 1981-02-21 1982-09-09 Schloemann Siemag Ag DRIVING AND LEVELING MACHINE FOR CONTINUOUS CASTING PLANTS
DE3508658C2 (en) * 1985-03-12 1988-04-14 Mannesmann Ag, 4000 Duesseldorf, De
IT1191432B (en) * 1986-01-07 1988-03-23 Continua Int Straightening extractor machine for continuous casting plants
DE3929722A1 (en) * 1989-09-07 1991-03-14 Schloemann Siemag Ag PLANT FOR THE PRODUCTION OF STEEL STRIP
AT404807B (en) 1996-05-08 1999-03-25 Voest Alpine Ind Anlagen Actuating device for setting the location of strand support elements
AT404806B (en) 1996-05-08 1999-03-25 Voest Alpine Ind Anlagen String guidance for a continuous casting system
DE19627336C1 (en) * 1996-06-28 1997-09-18 Mannesmann Ag Guiding a cast strip in e.g. steel strip casting units
DE19809807C2 (en) * 1998-03-09 2003-03-27 Sms Demag Ag Setting process for a roller segment of a continuous caster
DE10039016B4 (en) * 2000-08-10 2010-02-25 Sms Siemag Aktiengesellschaft Method for producing steel slabs
AT409465B (en) * 2000-12-12 2002-08-26 Voest Alpine Ind Anlagen Method for adjusting a casting split on a strand guide of a continuous casting system
US7430880B2 (en) * 2004-06-02 2008-10-07 Corning Incorporated Pull roll assembly for drawing a glass sheet
DE102006043797A1 (en) * 2006-09-19 2008-03-27 Sms Demag Ag Method for continuous casting of a metal strand
DE102010007660A1 (en) * 2010-01-12 2011-07-14 SMS Siemag AG, 40237 continuous casting
CN103523446A (en) * 2013-10-09 2014-01-22 德清三原色信息科技有限公司 Downwards-pulling rubber roller transmission mechanism
CN105584775A (en) * 2016-02-23 2016-05-18 浙江章氏护栏科技有限公司 Plastic edge sealing strip jump preventing device
CN105923343A (en) * 2016-03-31 2016-09-07 苏州亚思科精密数控有限公司 Pressure-type tray roller rack
CN109261922B (en) * 2018-10-26 2020-11-06 中国重型机械研究院股份公司 Casting blank production process of solidification tail end large-reduction continuous casting machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2770021A (en) * 1952-10-23 1956-11-13 Babcock & Wilcox Co Method of and apparatus for continuous casting
US3263284A (en) * 1963-12-20 1966-08-02 United States Steel Corp Constant-pressure pinch rolls for continuous casting
DE1458158B2 (en) * 1964-07-08 1970-05-06
US3550676A (en) * 1968-02-23 1970-12-29 United States Steel Corp Pinch roll assembly for a continuous-casting machine
US3557865A (en) * 1968-03-18 1971-01-26 United States Steel Corp Mechanism for measuring loads on pinch rolls of continuous-casting machine
CH489300A (en) * 1968-04-09 1970-04-30 Concast Ag Device for guiding a metal strand in the secondary cooling zone of a continuous casting plant and method for operating the device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0177796A2 (en) * 1984-10-10 1986-04-16 Sms Schloemann-Siemag Aktiengesellschaft Method of and installation for guiding and straightening a cast strand in the straight- and outlet region of a curved continuous casting plant
EP0177796A3 (en) * 1984-10-10 1987-03-25 Sms Schloemann-Siemag Aktiengesellschaft Method of and installation for guiding and straightening a cast strand in the straight- and outlet region of a curved continuous casting plant

Also Published As

Publication number Publication date
BR7204366D0 (en) 1973-05-03
CA981415A1 (en)
ATA565172A (en) 1975-06-15
JPS5219168B1 (en) 1977-05-26
ES404804A1 (en) 1975-06-16
AU4417672A (en) 1974-01-10
NL160748C (en) 1979-12-17
US3812900A (en) 1974-05-28
DD96870A5 (en) 1973-04-12
DK129219B (en) 1974-09-16
AT328638B (en) 1976-03-25
BE785587A (en) 1972-12-29
CA981415A (en) 1976-01-13
AU474088B2 (en) 1976-07-15
ZA7204560B (en) 1973-03-28
DE2133144B2 (en) 1973-09-27
DK129219C (en) 1975-02-03
DE2133144A1 (en) 1973-01-18
FR2144861A1 (en) 1973-02-16
BE785587A1 (en)
NL7209260A (en) 1973-01-05
SE395381B (en) 1977-08-15
FR2144861B1 (en) 1977-08-12
LU65645A1 (en) 1973-01-22
IT960120B (en) 1973-11-20
NL160748B (en) 1979-07-16
YU172972A (en) 1982-06-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee