GB1245915A - Improvements in and relating to hot strip-finishing trains - Google Patents

Improvements in and relating to hot strip-finishing trains

Info

Publication number
GB1245915A
GB1245915A GB00541/70A GB1054170A GB1245915A GB 1245915 A GB1245915 A GB 1245915A GB 00541/70 A GB00541/70 A GB 00541/70A GB 1054170 A GB1054170 A GB 1054170A GB 1245915 A GB1245915 A GB 1245915A
Authority
GB
United Kingdom
Prior art keywords
strip
stands
control unit
sticking
point
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
GB00541/70A
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.)
Voestalpine AG
Voest AG
Original Assignee
Voestalpine AG
Voest 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 Voestalpine AG, Voest AG filed Critical Voestalpine AG
Publication of GB1245915A publication Critical patent/GB1245915A/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
    • B21B33/00—Safety devices not otherwise provided for; Breaker blocks; Devices for freeing jammed rolls for handling cobbles; Overload safety devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • B21B1/26—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)

Abstract

1,245,915. Rolling; breaking. VEREINIGTE OSTERREICHISCHE EISEN-UND STAHLWERKE A.G. 5 March, 1970 [1 April, 1969], No. 10541/70. Headings B3E and B3M. A method of preventing damage to a hot strip-finishing train, having six rolling mill stands 1-6, caused by the leading end of the strip becoming stuck in one of the rolling mill stands 1-3 or in one of their guides 11-13 comprises sensing the time taken for the leading end of the strip to move between two adjacent stands by means of ammeters 61-63 and, in response to a prolonged transit time, a timer 10, 20 or 30 actuates a control unit A. The control unit A actuates flying shears 8, the reversal of roller bed 7 and the drive means to open the nips between those rolling mill stand rolls which engage the stock. Thus the cut off strip section is condensed between the point where sticking has occurred and the stand immediately preceding that point since the roll driving means are not stopped. The remaining strip leaves the rolling mill train 7 and the condensed strip is removed in a known manner. When the end sticking occurs in the nip between the rolls of any of stands 1-3, their motor protecting switches 51-53 actuate the control unit A. If the leading end of the strip sticks in one of the guides 14-16 of the rear rolling mill stands 4-6 a timer 40 or 50 is triggered by an ammeter 64, 65 or 66 to operate the control unit B. When sticking has occurred in one of stands 4-6 the control unit B is operated by the corresponding motor protection switches 54-56. On actuation of unit B it initiates the reversal of roller bed 7 and of scale breaker 9 and by the switch 51 de-energizes the drive means of the first frame 1. The continued operation of the remaining stands which precede the point where sticking has occurred causes the strip to be torn between stands 1 and 2 after which all nips between the working rolls engaging the strip are opened. When the severed strip section has been condensed between the point where sticking has occurred and the stand immediately preceding that point it is removed in a, known manner.
GB00541/70A 1969-04-01 1970-03-05 Improvements in and relating to hot strip-finishing trains Expired GB1245915A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT318269A AT286915B (en) 1969-04-01 1969-04-01 Method and device for preventing damage to hot strip finishing lines

Publications (1)

Publication Number Publication Date
GB1245915A true GB1245915A (en) 1971-09-15

Family

ID=3546616

Family Applications (1)

Application Number Title Priority Date Filing Date
GB00541/70A Expired GB1245915A (en) 1969-04-01 1970-03-05 Improvements in and relating to hot strip-finishing trains

Country Status (5)

Country Link
US (1) US3618347A (en)
AT (1) AT286915B (en)
DE (1) DE2002905C3 (en)
FR (1) FR2042038A5 (en)
GB (1) GB1245915A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2600784C3 (en) * 1976-01-10 1978-11-09 Hoesch Werke Ag, 4600 Dortmund Process for rolling hot strip and hot strip mill for carrying out the process

Also Published As

Publication number Publication date
FR2042038A5 (en) 1971-02-05
DE2002905A1 (en) 1970-10-15
US3618347A (en) 1971-11-09
DE2002905C3 (en) 1979-03-29
DE2002905B2 (en) 1973-07-26
AT286915B (en) 1970-12-28

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