JPS54106058A - Blooming method for steel ingot - Google Patents

Blooming method for steel ingot

Info

Publication number
JPS54106058A
JPS54106058A JP1369478A JP1369478A JPS54106058A JP S54106058 A JPS54106058 A JP S54106058A JP 1369478 A JP1369478 A JP 1369478A JP 1369478 A JP1369478 A JP 1369478A JP S54106058 A JPS54106058 A JP S54106058A
Authority
JP
Japan
Prior art keywords
steel ingot
blooming
portions
ingot
work
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
JP1369478A
Other languages
Japanese (ja)
Inventor
Tatsuya Yoshida
Akio Yamamoto
Takayuki Kudo
Hiroaki Shiraishi
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 JP1369478A priority Critical patent/JPS54106058A/en
Publication of JPS54106058A publication Critical patent/JPS54106058A/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
    • B21B1/02—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 heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
    • B21B1/026—Rolling
    • 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
    • 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
    • B21B45/0233—Spray nozzles, Nozzle headers; Spray systems

Landscapes

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

Abstract

PURPOSE:To improve the yield of the blooming work, by water cooling the top and bottom portions of the steel ingot being taken out of the soaking pit, for the purpose of specified degrees lowering the surface temperature of the ingot than the internal temperature, and next, by carrying out the blooming work. CONSTITUTION:The steel ingot 1 is taken out of the soaking pit 3 and is put on the carrying table 5 in front of the blooming mill 4; then, the top T and bottom B portions of steel ingot are water cooled by ring type sprays 61, 62, so as to more than 150 deg.C lower the surface temperature of steel ingot than the internal temperature. Next, under this condition, the blooming work is carried out; hereupon, the molten steel at the axial center zone relatively well stretches and is spread as far as the end portions; hence, the folding defect and the segregation at the top T and bottom B portions are reduced.
JP1369478A 1978-02-08 1978-02-08 Blooming method for steel ingot Pending JPS54106058A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1369478A JPS54106058A (en) 1978-02-08 1978-02-08 Blooming method for steel ingot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1369478A JPS54106058A (en) 1978-02-08 1978-02-08 Blooming method for steel ingot

Publications (1)

Publication Number Publication Date
JPS54106058A true JPS54106058A (en) 1979-08-20

Family

ID=11840292

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1369478A Pending JPS54106058A (en) 1978-02-08 1978-02-08 Blooming method for steel ingot

Country Status (1)

Country Link
JP (1) JPS54106058A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54106062A (en) * 1978-02-08 1979-08-20 Sumitomo Metal Ind Ltd Blooming method for steel ingot
JPH066659U (en) * 1991-11-15 1994-01-28 由紀 山野 Handled door stopper

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54106062A (en) * 1978-02-08 1979-08-20 Sumitomo Metal Ind Ltd Blooming method for steel ingot

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54106062A (en) * 1978-02-08 1979-08-20 Sumitomo Metal Ind Ltd Blooming method for steel ingot

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54106062A (en) * 1978-02-08 1979-08-20 Sumitomo Metal Ind Ltd Blooming method for steel ingot
JPH066659U (en) * 1991-11-15 1994-01-28 由紀 山野 Handled door stopper

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