GB601214A - Improved method of and apparatus for automatically controlling the thickness of metal strips, especially metal foils, in rolling mills - Google Patents

Improved method of and apparatus for automatically controlling the thickness of metal strips, especially metal foils, in rolling mills

Info

Publication number
GB601214A
GB601214A GB6690/44A GB669044A GB601214A GB 601214 A GB601214 A GB 601214A GB 6690/44 A GB6690/44 A GB 6690/44A GB 669044 A GB669044 A GB 669044A GB 601214 A GB601214 A GB 601214A
Authority
GB
United Kingdom
Prior art keywords
thickness
control
mill
foil
rolling
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
GB6690/44A
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.)
Amcor Flexibles Kreuzlingen AG
Original Assignee
Robert Victor Neher 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
Application filed by Robert Victor Neher AG filed Critical Robert Victor Neher AG
Publication of GB601214A publication Critical patent/GB601214A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/48—Tension control; Compression control
    • B21B37/52—Tension control; Compression control by drive motor control
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
    • G01B7/10—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance
    • G01B7/107—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance for measuring objects while moving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B2003/001—Aluminium or its alloys

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)

Abstract

601,214. Automatic control systems for rolling-mills. NEHER, Ltd., R. V. April 11, 1944, No. 6690. Convention date, March 4, 1943. [Class 38 (iv)] In the rolling of foil, particularly of aluminium or its alloys, the thickness of the product leaving the mills is continuously measured by means which automatically control the setting of parts of the mill to maintain the thickness control within prescribed limits. The control device consists of a measuring device 2 that creates eddy currents in the foil 1 ; the strength of the magnetic field due to the currents being used for the thickness measurement by apparatus 3 comprising a high-frequency amplifier and a galvanometer. When the permitted thickness variation is exceeded and current is switched on which by means of an amplifying relay 4 operates a reversing relay 5 causing rotation of an auxiliary motor 6 in one direction or the other. This may actuate a control 7 for regulating the speed of an A.C. motor driving the rolling-mill or it may control a brake for varying the back tension of the foil entering the mill. The tension of the foil on the leaving side of the mill may be controlled.
GB6690/44A 1943-03-04 1944-04-11 Improved method of and apparatus for automatically controlling the thickness of metal strips, especially metal foils, in rolling mills Expired GB601214A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH601214X 1943-03-04

Publications (1)

Publication Number Publication Date
GB601214A true GB601214A (en) 1948-04-30

Family

ID=4522763

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6690/44A Expired GB601214A (en) 1943-03-04 1944-04-11 Improved method of and apparatus for automatically controlling the thickness of metal strips, especially metal foils, in rolling mills

Country Status (3)

Country Link
BE (1) BE469551A (en)
CH (1) CH233907A (en)
GB (1) GB601214A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194036A (en) * 1958-01-02 1965-07-13 Westinghouse Canada Ltd Material thickness control apparatus
US3236079A (en) * 1961-06-15 1966-02-22 Ungerer Fritz Control device for metal straightening machine and a method for operating such machine
WO2005056921A1 (en) * 2003-12-10 2005-06-23 Metso Paper, Inc. A method for controlling the running parameters in an apparatus for processing a fibrous web and a device for applying the said method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE470806A (en) * 1946-01-29
DE942505C (en) * 1948-06-02 1956-05-03 Kapella Ltd Adjustment device for metal strip rolling mills, which consist of two rollers
DE820287C (en) * 1949-10-28 1951-11-08 Elektro Mechanik G M B H Roller pressure regulator for precision rolling

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194036A (en) * 1958-01-02 1965-07-13 Westinghouse Canada Ltd Material thickness control apparatus
US3236079A (en) * 1961-06-15 1966-02-22 Ungerer Fritz Control device for metal straightening machine and a method for operating such machine
WO2005056921A1 (en) * 2003-12-10 2005-06-23 Metso Paper, Inc. A method for controlling the running parameters in an apparatus for processing a fibrous web and a device for applying the said method

Also Published As

Publication number Publication date
BE469551A (en)
CH233907A (en) 1944-08-31

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