GB1200535A - Apparatus for controlling discharge of metal from a vacuum degassing chamber - Google Patents

Apparatus for controlling discharge of metal from a vacuum degassing chamber

Info

Publication number
GB1200535A
GB1200535A GB54157/68A GB5415768A GB1200535A GB 1200535 A GB1200535 A GB 1200535A GB 54157/68 A GB54157/68 A GB 54157/68A GB 5415768 A GB5415768 A GB 5415768A GB 1200535 A GB1200535 A GB 1200535A
Authority
GB
United Kingdom
Prior art keywords
signal
control
valve
metal
nov
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
GB54157/68A
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.)
United States Steel Corp
Original Assignee
United States 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 United States Steel Corp filed Critical United States Steel Corp
Publication of GB1200535A publication Critical patent/GB1200535A/en
Expired legal-status Critical Current

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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

1,200,535. Automatic control of molten metal. UNITED STATES STEEL CORP. Nov.14, 1968 [Nov. 29, 1967], No. 54157/68. Heading G3R. [Also in Division C7] A continuous metal degassing and casting process is controlled by apparatus consisting of a device sensing the discharge rate of molten metal and producing a proportional signal, a connection supplying said signal to a controller 29 which compares said signal with a pre-set signal corresponding to a constant discharge rate through nozzle 21 and creating a control signal proportioned to the difference between the first signal and the pre-set signal, and an actuator 35, which receives the control signal and varies the setting of valve 19, attached to supply line 17. In a continuous casting device a mould level control 24, regulates the speed of the pinch rolls 15 to maintain a constant level of material in mould 13. A tachometer generator 25 is attached to the drive motor for pinch rolls 15, and the output from this is fed to a voltage divider 27 and electrlc-to-pneumatic converter 26, which develops a pneumatic pressure signal. The latter is fed to controller 29 where it is compared with a pre-set pressure signal from line 31, and any difference is transmitted as a control signal to valve actuator 35 which adjusts valve 19.
GB54157/68A 1967-11-29 1968-11-14 Apparatus for controlling discharge of metal from a vacuum degassing chamber Expired GB1200535A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US68651767A 1967-11-29 1967-11-29

Publications (1)

Publication Number Publication Date
GB1200535A true GB1200535A (en) 1970-07-29

Family

ID=24756626

Family Applications (1)

Application Number Title Priority Date Filing Date
GB54157/68A Expired GB1200535A (en) 1967-11-29 1968-11-14 Apparatus for controlling discharge of metal from a vacuum degassing chamber

Country Status (6)

Country Link
US (1) US3480073A (en)
BE (1) BE724422A (en)
DE (1) DE1810855A1 (en)
FR (1) FR1600492A (en)
GB (1) GB1200535A (en)
NL (1) NL6816822A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3830282A (en) * 1972-10-31 1974-08-20 Steel Corp System for feedback control of casting speed
DE3905328C1 (en) * 1989-02-17 1990-07-19 Mannesmann Ag, 4000 Duesseldorf, De

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2905989A (en) * 1956-05-04 1959-09-29 Koppers Co Inc Method and apparatus for continuous casting of metals
US3367396A (en) * 1965-04-05 1968-02-06 Heppenstall Co Installation for the vacuum treatment of melts, in particular steel melts, and process for its operation
US3349834A (en) * 1965-09-21 1967-10-31 United States Steel Corp Dual-control for controlling the liquid level in a continuous casting mold

Also Published As

Publication number Publication date
DE1810855A1 (en) 1969-07-17
US3480073A (en) 1969-11-25
NL6816822A (en) 1969-06-02
FR1600492A (en) 1970-07-27
BE724422A (en) 1969-05-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees