JPS5534688A - Descaling method for hot rolled steel strip - Google Patents

Descaling method for hot rolled steel strip

Info

Publication number
JPS5534688A
JPS5534688A JP10872678A JP10872678A JPS5534688A JP S5534688 A JPS5534688 A JP S5534688A JP 10872678 A JP10872678 A JP 10872678A JP 10872678 A JP10872678 A JP 10872678A JP S5534688 A JPS5534688 A JP S5534688A
Authority
JP
Japan
Prior art keywords
strip
descaling
mill
steel strip
rolls
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.)
Granted
Application number
JP10872678A
Other languages
Japanese (ja)
Other versions
JPS5829171B2 (en
Inventor
Yoshitane Yokote
Yasumasa Hirata
Masao Mikami
Mamoru Kasugai
Kiyoshi Ooya
Yasushi Murakami
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.)
IHI Corp
Nippon Steel Corp
Original Assignee
IHI Corp
Nippon 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 IHI Corp, Nippon Steel Corp filed Critical IHI Corp
Priority to JP53108726A priority Critical patent/JPS5829171B2/en
Priority to DE2931229A priority patent/DE2931229C2/en
Priority to IT25250/79A priority patent/IT1122863B/en
Priority to FR7921159A priority patent/FR2435294A1/en
Priority to BR7905433A priority patent/BR7905433A/en
Priority to GB7929495A priority patent/GB2029303B/en
Publication of JPS5534688A publication Critical patent/JPS5534688A/en
Publication of JPS5829171B2 publication Critical patent/JPS5829171B2/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
    • 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
    • B21B45/06—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 of strip material
    • 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
    • B21B1/222—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 rolling-drawing process; in a multi-pass mill

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Metal Rolling (AREA)

Abstract

PURPOSE: To improve the descaling efficiency, and to improve the surface condition of the steel strip, by jetting the descaling material against the hot rolled steel strip being given a specified elongation by rotation of a pair of adjoining rolls of the rolling mill in respectively inverse directions at different circumferential velocities.
CONSTITUTION: The PV mill 1 is installed; in which, a pair of adjoining work rolls 4a, 4b, are rotated in inverse directions at different circumferential velocities, the ratio between circumferential velocities of rolls 4a, 4b, is approximately equalized to the ratio between thicknesses of the steel strip 2 before and after the rolling work, and besides, the roll speed on the high speed side is approxi-mately equalized to the strip speed on the exit side of the mill. The strip 2 is rolled by this mill 1 under the dry condition to give an elongation 2W8%; hereafter, the descaling material is jetted by the jetter 3 for descaling the strip 2; hereby, the time required by descaling work can be greatly shortened. Moreover, since the scale is placed under a condition ready to leave, the jetting angle can be reduced in order to keep good the surface condition of the strip 2.
COPYRIGHT: (C)1980,JPO&Japio
JP53108726A 1978-09-05 1978-09-05 Descaling method for hot rolled steel strip Expired JPS5829171B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP53108726A JPS5829171B2 (en) 1978-09-05 1978-09-05 Descaling method for hot rolled steel strip
DE2931229A DE2931229C2 (en) 1978-09-05 1979-08-01 Process for mechanical pre-descaling of hot-rolled steel strip
IT25250/79A IT1122863B (en) 1978-09-05 1979-08-21 PROCESS FOR DECALAMINATING HOT ROLLED STEEL SHEET SURFACES
FR7921159A FR2435294A1 (en) 1978-09-05 1979-08-22 METHOD FOR STRIPPING THE SURFACES OF HOT-ROLLED STEEL SHEET
BR7905433A BR7905433A (en) 1978-09-05 1979-08-23 PROCESS FOR DE-SCALING HOT LAMINATED STEEL SHEET SURFACES
GB7929495A GB2029303B (en) 1978-09-05 1979-08-24 Descaling hot-rolled steel strip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53108726A JPS5829171B2 (en) 1978-09-05 1978-09-05 Descaling method for hot rolled steel strip

Publications (2)

Publication Number Publication Date
JPS5534688A true JPS5534688A (en) 1980-03-11
JPS5829171B2 JPS5829171B2 (en) 1983-06-21

Family

ID=14491983

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53108726A Expired JPS5829171B2 (en) 1978-09-05 1978-09-05 Descaling method for hot rolled steel strip

Country Status (6)

Country Link
JP (1) JPS5829171B2 (en)
BR (1) BR7905433A (en)
DE (1) DE2931229C2 (en)
FR (1) FR2435294A1 (en)
GB (1) GB2029303B (en)
IT (1) IT1122863B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS577316A (en) * 1980-06-13 1982-01-14 Mitsubishi Heavy Ind Ltd Descaling apparatus for hot rolled steel sheet
JPS6284679A (en) * 1985-10-09 1987-04-18 Hitachi Ltd Synchronizing signal generator for video printer
US9604268B2 (en) 2012-05-25 2017-03-28 Bahoshan Iron & Steel Co., Ltd. Cold state metal plate strip surface treatment system and treatment method of the same
DE112015001515B4 (en) 2014-03-28 2019-01-10 Baoshan Iron & Steel Co., Ltd. Axially eccentrically arranged mixed-jet descaling device for the inner wall of a pipe

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3600143A1 (en) * 1986-01-07 1987-07-09 Schloemann Siemag Ag ROLLING DEVICES FOR MECHANICAL PRE-SCALING OF STEEL STRIP
CN113145672A (en) * 2021-05-17 2021-07-23 山东绿钢环保科技股份有限公司 Efficient descaling system for steel strip

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5278630A (en) * 1975-12-25 1977-07-02 Hitachi Ltd Descaling method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE600053C (en) * 1933-01-14 1934-07-13 Rudolf Traut Process for descaling pipes and round bars made of metal
US2335196A (en) * 1940-09-09 1943-11-23 Osborn Mfg Co Metal cleaning
DE886585C (en) * 1941-11-04 1953-08-17 Administration Sequestre Des R Descaling device for workpieces
DE1249600B (en) * 1962-12-03
US3811307A (en) * 1971-06-28 1974-05-21 V Sosjurko Method of rolling metal sheet articles
DE2536605A1 (en) * 1975-08-16 1977-02-24 Christ & Co O Mechanical descaling plant for strip steel - bends strip by rolls and brushes scale by rotating brushes

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5278630A (en) * 1975-12-25 1977-07-02 Hitachi Ltd Descaling method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS577316A (en) * 1980-06-13 1982-01-14 Mitsubishi Heavy Ind Ltd Descaling apparatus for hot rolled steel sheet
JPS6252644B2 (en) * 1980-06-13 1987-11-06 Mitsubishi Heavy Ind Ltd
JPS6284679A (en) * 1985-10-09 1987-04-18 Hitachi Ltd Synchronizing signal generator for video printer
US9604268B2 (en) 2012-05-25 2017-03-28 Bahoshan Iron & Steel Co., Ltd. Cold state metal plate strip surface treatment system and treatment method of the same
DE112015001515B4 (en) 2014-03-28 2019-01-10 Baoshan Iron & Steel Co., Ltd. Axially eccentrically arranged mixed-jet descaling device for the inner wall of a pipe
US10888907B2 (en) 2014-03-28 2021-01-12 Baoshan Iron & Steel Co., Ltd. Mixed jet descaling device axially and eccentrically arranged for inner wall of pipe

Also Published As

Publication number Publication date
IT7925250A0 (en) 1979-08-21
GB2029303A (en) 1980-03-19
JPS5829171B2 (en) 1983-06-21
FR2435294A1 (en) 1980-04-04
DE2931229C2 (en) 1985-06-20
BR7905433A (en) 1980-05-20
DE2931229A1 (en) 1980-03-06
IT1122863B (en) 1986-04-30
GB2029303B (en) 1982-06-16
FR2435294B1 (en) 1983-11-10

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