DE69201173T2 - Method and device for descaling a hot-rolled metal object. - Google Patents

Method and device for descaling a hot-rolled metal object.

Info

Publication number
DE69201173T2
DE69201173T2 DE69201173T DE69201173T DE69201173T2 DE 69201173 T2 DE69201173 T2 DE 69201173T2 DE 69201173 T DE69201173 T DE 69201173T DE 69201173 T DE69201173 T DE 69201173T DE 69201173 T2 DE69201173 T2 DE 69201173T2
Authority
DE
Germany
Prior art keywords
product
descaling
hot
bar
jets
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 - Lifetime
Application number
DE69201173T
Other languages
German (de)
Other versions
DE69201173D1 (en
Inventor
Stephan Wilmotte
Alain Hougardy
Pierre Simon
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.)
Centre de Recherches Metallurgiques CRM ASBL
Original Assignee
Centre de Recherches Metallurgiques CRM ASBL
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 Centre de Recherches Metallurgiques CRM ASBL filed Critical Centre de Recherches Metallurgiques CRM ASBL
Publication of DE69201173D1 publication Critical patent/DE69201173D1/en
Application granted granted Critical
Publication of DE69201173T2 publication Critical patent/DE69201173T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
    • B21B45/08—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing hydraulically

Abstract

Method for descaling a hot-rolled metal product in which a liquid agent is sprayed onto the surface of the product in the form of a plurality of coherent jets, parallel with one another and having a diameter of less than 2.5 mm. The set of jets is displaced in an alternating sweeping movement in a direction perpendicular to the displacement of the product. The supply pressure of the jets is less than 75 bar and is preferably between 20 bar and 60 bar. The frequency of the alternating movement is between 5 Hz and 50 Hz. The device comprises a plurality of spraying nozzles (8) directed, parallel with one another, towards the product to be descaled (1), means (6; 9) for supplying the spraying nozzles with pressurized liquid agent, as well as means (10) for imparting to the spraying nozzles (8) an alternating sweeping movement in the transverse direction. <IMAGE>
DE69201173T 1991-07-09 1992-07-01 Method and device for descaling a hot-rolled metal object. Expired - Lifetime DE69201173T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE9100651A BE1005137A6 (en) 1991-07-09 1991-07-09 Method and device for descaling metal product of hot rolled.

Publications (2)

Publication Number Publication Date
DE69201173D1 DE69201173D1 (en) 1995-02-23
DE69201173T2 true DE69201173T2 (en) 1995-08-31

Family

ID=3885604

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69201173T Expired - Lifetime DE69201173T2 (en) 1991-07-09 1992-07-01 Method and device for descaling a hot-rolled metal object.

Country Status (5)

Country Link
EP (1) EP0526440B1 (en)
JP (1) JPH05195271A (en)
AT (1) ATE116877T1 (en)
BE (1) BE1005137A6 (en)
DE (1) DE69201173T2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2882542B1 (en) 2012-08-10 2016-03-30 SMS group GmbH Method for cleaning and/or descaling a slab or a preliminary strip by means of a descaling device, and descaling device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3307771B2 (en) * 1993-08-23 2002-07-24 ハンス‐ユルゲン、ガイドール Means for descaling hot rolled steel sheets
DE4332538A1 (en) * 1993-09-24 1995-03-30 Bosch Gmbh Robert Hydraulic unit for slip-controlled braking systems of motor vehicles
ITMI20110368A1 (en) 2011-03-10 2012-09-11 Danieli Off Mecc OSCILLATING DROPPER AND METHOD TO DISCONNECT A METALLURGICAL SEMI-FINISH

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3811305A (en) * 1972-10-10 1974-05-21 Bethlehem Steel Corp Movable descaler spray header
DE3125146A1 (en) * 1981-06-26 1983-01-13 Woma-Apparatebau Wolfgang Maasberg & Co Gmbh, 4100 Duisburg Device for descaling hot steel ingots

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2882542B1 (en) 2012-08-10 2016-03-30 SMS group GmbH Method for cleaning and/or descaling a slab or a preliminary strip by means of a descaling device, and descaling device
EP2882542B2 (en) † 2012-08-10 2021-03-10 SMS group GmbH Method for cleaning and/or descaling a slab or a preliminary strip by means of a descaling device, and descaling device

Also Published As

Publication number Publication date
JPH05195271A (en) 1993-08-03
DE69201173D1 (en) 1995-02-23
EP0526440B1 (en) 1995-01-11
ATE116877T1 (en) 1995-01-15
EP0526440A1 (en) 1993-02-03
BE1005137A6 (en) 1993-05-04

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