JPS577316A - Descaling apparatus for hot rolled steel sheet - Google Patents

Descaling apparatus for hot rolled steel sheet

Info

Publication number
JPS577316A
JPS577316A JP7908880A JP7908880A JPS577316A JP S577316 A JPS577316 A JP S577316A JP 7908880 A JP7908880 A JP 7908880A JP 7908880 A JP7908880 A JP 7908880A JP S577316 A JPS577316 A JP S577316A
Authority
JP
Japan
Prior art keywords
steel sheet
scale
shots
advancing direction
shot blasting
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
JP7908880A
Other languages
Japanese (ja)
Other versions
JPS6252644B2 (en
Inventor
Shunji Omori
Tsuneo Egawa
Teijiro Fujisaka
Tadanori Miyamoto
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP7908880A priority Critical patent/JPS577316A/en
Publication of JPS577316A publication Critical patent/JPS577316A/en
Publication of JPS6252644B2 publication Critical patent/JPS6252644B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
    • B24C1/086—Descaling; Removing coating films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/08—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces
    • B24C3/10—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces for treating external surfaces
    • B24C3/14—Apparatus using impellers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Abstract

PURPOSE:To efficiently remove a scale, by successively installing a scale breaker for generating cracks in the scale along the advancing direction of a steel sheet, an apparatus for blasting shots against the cracked scale, and a nozzle for ejecting liquid against the steel sheet surface during the shot blasting period. CONSTITUTION:When a steel sheet 3 running out of a hot rolling line is fed into a scale breaker 4, the steel sheet 3 passes the rollers 4a-4d while being successively bent in a wave form along the advancing direction of the steel sheet 3 so that the scale covering the surface of the steel sheet 3 generates cracks in a readily removable state. When the steel sheet 3 is carried into a descaling chamber 5, liquid such as water or solution of a water soluble cutting oil is ejected from nozzles 6a and 6b, and shots such as iron sands are blasted by shot blasting apparatuses 7a, 7b utilizing the centrifugal force. Hereby, the scale is effectively removed from the surface of the steel sheet 3.
JP7908880A 1980-06-13 1980-06-13 Descaling apparatus for hot rolled steel sheet Granted JPS577316A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7908880A JPS577316A (en) 1980-06-13 1980-06-13 Descaling apparatus for hot rolled steel sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7908880A JPS577316A (en) 1980-06-13 1980-06-13 Descaling apparatus for hot rolled steel sheet

Publications (2)

Publication Number Publication Date
JPS577316A true JPS577316A (en) 1982-01-14
JPS6252644B2 JPS6252644B2 (en) 1987-11-06

Family

ID=13680120

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7908880A Granted JPS577316A (en) 1980-06-13 1980-06-13 Descaling apparatus for hot rolled steel sheet

Country Status (1)

Country Link
JP (1) JPS577316A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6130214A (en) * 1984-07-23 1986-02-12 Kawasaki Steel Corp Method for descaling hot-rolled steel sheet

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5215421A (en) * 1975-07-26 1977-02-05 Nippon Steel Corp Mechanical descaling method
JPS5534688A (en) * 1978-09-05 1980-03-11 Ishikawajima Harima Heavy Ind Co Ltd Descaling method for hot rolled steel strip

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5215421A (en) * 1975-07-26 1977-02-05 Nippon Steel Corp Mechanical descaling method
JPS5534688A (en) * 1978-09-05 1980-03-11 Ishikawajima Harima Heavy Ind Co Ltd Descaling method for hot rolled steel strip

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6130214A (en) * 1984-07-23 1986-02-12 Kawasaki Steel Corp Method for descaling hot-rolled steel sheet

Also Published As

Publication number Publication date
JPS6252644B2 (en) 1987-11-06

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