JPS5548404A - Finish rolling method of u-steel sheet pile and its device - Google Patents

Finish rolling method of u-steel sheet pile and its device

Info

Publication number
JPS5548404A
JPS5548404A JP12216178A JP12216178A JPS5548404A JP S5548404 A JPS5548404 A JP S5548404A JP 12216178 A JP12216178 A JP 12216178A JP 12216178 A JP12216178 A JP 12216178A JP S5548404 A JPS5548404 A JP S5548404A
Authority
JP
Japan
Prior art keywords
pass
rolling
finishing
transformation point
cooling zone
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.)
Pending
Application number
JP12216178A
Other languages
Japanese (ja)
Inventor
Yoshiaki Kusaba
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP12216178A priority Critical patent/JPS5548404A/en
Publication of JPS5548404A publication Critical patent/JPS5548404A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B21B1/08—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 structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/082—Piling sections having lateral edges specially adapted for interlocking with each other in order to build a wall
    • 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
    • B21B45/02—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 lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes

Landscapes

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

Abstract

PURPOSE:To prevent producing defective products due to thermal distortion, by performing a reciprocal movement of plate material which is more than the A3 transformation point, rolling it by the finish preparation and the finishing pass, respectively, carrying out the reciprocal movement once again after cooling it to the A1 transformation point in the water cooling zone. CONSTITUTION:As the first pass in the finish rolling mill 9, the U-steel sheet pile material 14 which is more than the A3 transformation point (approx. 800 deg.C) is rolled by the finishing preparation pass 12, being subject to the going forward movement. Subsequently, the material 14 is made to perform the going back movement by shifting it in the direction of the finishing pass 13, and the finished shape is obtained by the second pass rolling with the finishing pass 13 at the aforesaid temperature. After that, although the material 14 is led to the water cooling zone 10 and is cooled to the temperature of 600 deg.C-A1 transformation point (approx. 700 deg.C), large thermal distortion is not caused, and reform rolling can be made easily. Furthermore, the watering pipes 16, 17 are cooled evenly by adjusting the water quantity separately, based upon the observation of the thermometer 11. Subsequently, slight thermal distortion which has been caused in the water cooling zone is removed by making the material 14 perform the going forward movement once again and carrying out the third pass rolling by the finishing pass 13.
JP12216178A 1978-10-04 1978-10-04 Finish rolling method of u-steel sheet pile and its device Pending JPS5548404A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12216178A JPS5548404A (en) 1978-10-04 1978-10-04 Finish rolling method of u-steel sheet pile and its device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12216178A JPS5548404A (en) 1978-10-04 1978-10-04 Finish rolling method of u-steel sheet pile and its device

Publications (1)

Publication Number Publication Date
JPS5548404A true JPS5548404A (en) 1980-04-07

Family

ID=14829093

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12216178A Pending JPS5548404A (en) 1978-10-04 1978-10-04 Finish rolling method of u-steel sheet pile and its device

Country Status (1)

Country Link
JP (1) JPS5548404A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007175719A (en) * 2005-12-27 2007-07-12 Jfe Steel Kk Manufacturing method of steel sheet pile.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007175719A (en) * 2005-12-27 2007-07-12 Jfe Steel Kk Manufacturing method of steel sheet pile.

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