ES433309A1 - Apparatus for controlling the level of molten metal in a mould - Google Patents

Apparatus for controlling the level of molten metal in a mould

Info

Publication number
ES433309A1
ES433309A1 ES74433309A ES433309A ES433309A1 ES 433309 A1 ES433309 A1 ES 433309A1 ES 74433309 A ES74433309 A ES 74433309A ES 433309 A ES433309 A ES 433309A ES 433309 A1 ES433309 A1 ES 433309A1
Authority
ES
Spain
Prior art keywords
cylinder means
controller
level
servo
molten metal
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
ES74433309A
Other languages
Spanish (es)
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Publication of ES433309A1 publication Critical patent/ES433309A1/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
    • B22D11/18—Controlling or regulating processes or operations for pouring
    • B22D11/181—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level
    • B22D11/187—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level by using X-rays or nuclear radiation
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
    • G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Continuous Casting (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

An apparatus for monitoring the level of molten metal in a continuous casting mold, comprising: a mold, a refractory trough located above said mold and having a drop nozzle at the bottom, a detector for detecting the level of the metal molten contained in the mold, a controller connected to said detector and intended to produce an output signal proportional to the difference between the average value of the level of molten metal detected by said detector and the set point for a standard level of molten metal, being said controller being switchable between automatic control and manual control, cylinder means for opening and closing the sliding nozzle of said tundish and a servo mechanism provided between said controller and said nozzle opening and closing cylinder means; whose servomechanism includes a servo amplifier connected to said controller, a servo valve connected to said servo amplifier, an intermediate cylinder connected to said servo valve to drive said nozzle opening and closing cylinder means, a cylinder position detector circuit to detect the position of said intermediate cylinder means, a switching valve connected to said servo valve, to said nozzle opening and closing cylinder means and intermediate cylinder means, another switching valve connected to said servo valve to switch between a source of pressurized oil high and a low pressure oil source for compensation purposes and a control box connected to said switching valve, to said intermediate cylinder means and to said controller, whereby only said intermediate cylinder means can be re-set bring to the neutral position. (Machine-translation by Google Translate, not legally binding)
ES74433309A 1973-12-26 1974-12-24 Apparatus for controlling the level of molten metal in a mould Expired ES433309A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP253974A JPS5342018B2 (en) 1973-12-26 1973-12-26

Publications (1)

Publication Number Publication Date
ES433309A1 true ES433309A1 (en) 1976-12-16

Family

ID=11532171

Family Applications (1)

Application Number Title Priority Date Filing Date
ES74433309A Expired ES433309A1 (en) 1973-12-26 1974-12-24 Apparatus for controlling the level of molten metal in a mould

Country Status (8)

Country Link
JP (1) JPS5342018B2 (en)
AT (1) AT339520B (en)
CA (1) CA1040832A (en)
DE (1) DE2461086C3 (en)
ES (1) ES433309A1 (en)
FR (1) FR2255978B1 (en)
GB (1) GB1468559A (en)
IT (1) IT1026148B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4520266A (en) * 1981-09-18 1985-05-28 British Steel Corporation Radiation level detectors
JPS60137324A (en) * 1983-12-27 1985-07-20 中松　義郎 Pillow
US5515906A (en) * 1993-01-29 1996-05-14 Her Majesty In Right Of Canada As Represented By The Minister Of Energy, Mines And Resources Pneumatic flow control of liquid metals
CA2088401A1 (en) * 1993-01-29 1994-07-30 Her Majesty The Queen, In Right Of Canada As Represented By The Minister Of Natural Resources Canada Pneumatic flow control of liquid metals
CN110102730B (en) * 2019-04-18 2024-03-22 宣化钢铁集团有限责任公司 Casting method of crystallizer
CN112404383A (en) * 2020-10-09 2021-02-26 盐城市联鑫钢铁有限公司 Quick control system of continuous casting tundish nozzle

Also Published As

Publication number Publication date
AT339520B (en) 1977-10-25
IT1026148B (en) 1978-09-20
FR2255978A1 (en) 1975-07-25
JPS5342018B2 (en) 1978-11-08
DE2461086C3 (en) 1979-04-05
DE2461086A1 (en) 1975-07-03
AU7657074A (en) 1976-06-24
GB1468559A (en) 1977-03-30
DE2461086B2 (en) 1978-08-03
CA1040832A (en) 1978-10-24
JPS5095133A (en) 1975-07-29
FR2255978B1 (en) 1980-04-30
ATA1029474A (en) 1977-02-15

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