GB1090303A - Improvements in or relating to continuous metal casting apparatus - Google Patents

Improvements in or relating to continuous metal casting apparatus

Info

Publication number
GB1090303A
GB1090303A GB20527/66A GB2052766A GB1090303A GB 1090303 A GB1090303 A GB 1090303A GB 20527/66 A GB20527/66 A GB 20527/66A GB 2052766 A GB2052766 A GB 2052766A GB 1090303 A GB1090303 A GB 1090303A
Authority
GB
United Kingdom
Prior art keywords
motor
casting
speed
rolls
mould
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
GB20527/66A
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.)
Beazer East Inc
Original Assignee
Koppers Co Inc
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 Koppers Co Inc filed Critical Koppers Co Inc
Publication of GB1090303A publication Critical patent/GB1090303A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
    • H02P5/48—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another by comparing mechanical values representing the speeds
    • 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
    • B22D11/1226—Accessories for subsequent treating or working cast stock in situ for straightening strands
    • 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
    • B22D11/20—Controlling or regulating processes or operations for removing cast stock
    • B22D11/201—Controlling or regulating processes or operations for removing cast stock responsive to molten metal level or slag level
    • B22D11/206—Controlling or regulating processes or operations for removing cast stock responsive to molten metal level or slag level by using X-rays or nuclear radiation

Abstract

1,090,303. Automatic attitude control. KOPPERS CO. Inc. May 9, 1966 [June 18, 1965], No.20527/66. Heading G3R. A metal casting continuously withdrawn from a mould by pinch rolls, travels in a curved path to straightener rolls, and deviations from a desired curved path are self-corrected by automatic control of the speed of the straightener rolls. As shown, a metal casting 19, continuously withdrawn from a water-cooled mould 17 by pinch rolls 25 and further cooled at 23, is bent in the form of an arc before entering straightener rolls 29. Metal is supplied to mould 17 from a tun dish 13 and the rate of withdrawal of the casting is made dependent on the level in the mould by a radiation type level detector automatically controlling at 28 the speed of a motor 27 driving the pinch rolls. Variations in the attitude of the casting are detected by a weighted lever 43 which adjusts the core of a transformer 66 so that, if the movement exceeds a predetermined minimum, the voltage applied from a potentiometer 39 controls, through an amplifier 36, the speed of a motor 35 driving the straightener rolls and the casting is restored to a desired attitude. Feedback dependent on the speed of motor 35 is applied to the input of amplifier 36 from a tachogenerator 38 driven by motor 35. A changeover switch 46 is provided so that the basic speed of motor 35 may be adjusted manually by a potentiometer 43 or automatically in dependence on the speed of the pinch rolls by the output of a tachogenerator 42 driven by motor 27. Excessive movement of lever 43 causes operation of limit switches 77, 79 so that an alarm 103 is sounded and, if the casting is pulled too straight, motor 35 is temporarily stopped. Alarm 103 may be silenced by operation of a push button 105. Use of a radiation device instead of a feeler to detect changes in attitude of the casting is referred to.
GB20527/66A 1965-06-18 1966-05-09 Improvements in or relating to continuous metal casting apparatus Expired GB1090303A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US465089A US3344841A (en) 1965-06-18 1965-06-18 Control apparatus for a continuous cast billet

Publications (1)

Publication Number Publication Date
GB1090303A true GB1090303A (en) 1967-11-08

Family

ID=23846447

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20527/66A Expired GB1090303A (en) 1965-06-18 1966-05-09 Improvements in or relating to continuous metal casting apparatus

Country Status (4)

Country Link
US (1) US3344841A (en)
DE (1) DE1508885A1 (en)
ES (1) ES326275A1 (en)
GB (1) GB1090303A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3561523A (en) * 1968-05-27 1971-02-09 Tibor Miklos Vertesi Mold level control system
JPS5038631A (en) * 1973-08-08 1975-04-10
CH637047A5 (en) * 1978-12-29 1983-07-15 Lauener W F Ag METHOD FOR CONTROLLING THE SPEED OF A BELT CASTING AND ROLLING MACHINE AND SYSTEM CONTROLLED BY THIS METHOD.
DE19829605C1 (en) * 1998-07-02 1999-10-14 Schloemann Siemag Ag Strand, especially a thin steel slab, is withdrawn from an arcuate continuous casting machine
DE19838774A1 (en) * 1998-08-26 2000-03-02 Schloemann Siemag Ag Casting of steel strip comprises locating the guide roll below the circular arc section and detecting the break between strip and guide roll
US10850322B2 (en) 2017-10-30 2020-12-01 Nucor Corporation Casting stand control system with radius roll feedback and method of use

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2332759A (en) * 1939-06-06 1943-10-26 Schwarz Adolphe Method of and apparatus for rolling molten metals
US2682691A (en) * 1949-07-09 1954-07-06 Babcock & Wilcox Co Continuous casting process and apparatus
US2753605A (en) * 1952-11-29 1956-07-10 Republic Steel Corp Apparatus for metering of molten metal by weight
US3047915A (en) * 1959-06-11 1962-08-07 Head Wrightson & Co Ltd Apparatus for continuous casting of steel
BE624437A (en) * 1961-11-04
BE644303A (en) * 1963-02-25

Also Published As

Publication number Publication date
US3344841A (en) 1967-10-03
DE1508885A1 (en) 1969-11-13
ES326275A1 (en) 1967-03-01

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