JPS5756103A - Preventing method for barreling of ingot in rolling incompletely soldified ingot - Google Patents

Preventing method for barreling of ingot in rolling incompletely soldified ingot

Info

Publication number
JPS5756103A
JPS5756103A JP13211880A JP13211880A JPS5756103A JP S5756103 A JPS5756103 A JP S5756103A JP 13211880 A JP13211880 A JP 13211880A JP 13211880 A JP13211880 A JP 13211880A JP S5756103 A JPS5756103 A JP S5756103A
Authority
JP
Japan
Prior art keywords
ingot
rolling
barreling
incompletely
rolling process
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
JP13211880A
Other languages
Japanese (ja)
Other versions
JPS5837041B2 (en
Inventor
Kazuo Kobayashi
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 JP13211880A priority Critical patent/JPS5837041B2/en
Publication of JPS5756103A publication Critical patent/JPS5756103A/en
Publication of JPS5837041B2 publication Critical patent/JPS5837041B2/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
    • 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
    • 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

Abstract

PURPOSE:To prevent the barreling of a rolled ingot without declining the thermal efficiency and rolling efficiency, by forcibly water cooling the surface of a middle zone of the ingot at an early stage of a rolling process for an ingot incompletely solidified to a prescribed solidification percentage. CONSTITUTION:At rolling an incompletely solidified ingot, that is at an early stage of a rolling process for an ingot of a 70-80% solidification percentage, the surface of the middle zone of the ingot is forcibly water cooled in order to rapidly grow a solidified outer shell near the unsolidifed metal of the ingot. The cooling zone in the ingot is located at almost middle of longitude and is set in about 300- 500mm. width. By the present method, the energy consumption is saved by a non- heating rolling process and the segregation of component elements is reduced, and besides, the barreling is prevented so that the product shape is improved.
JP13211880A 1980-09-22 1980-09-22 Method for preventing swelling during unsolidified rolling of steel ingots Expired JPS5837041B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13211880A JPS5837041B2 (en) 1980-09-22 1980-09-22 Method for preventing swelling during unsolidified rolling of steel ingots

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13211880A JPS5837041B2 (en) 1980-09-22 1980-09-22 Method for preventing swelling during unsolidified rolling of steel ingots

Publications (2)

Publication Number Publication Date
JPS5756103A true JPS5756103A (en) 1982-04-03
JPS5837041B2 JPS5837041B2 (en) 1983-08-13

Family

ID=15073830

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13211880A Expired JPS5837041B2 (en) 1980-09-22 1980-09-22 Method for preventing swelling during unsolidified rolling of steel ingots

Country Status (1)

Country Link
JP (1) JPS5837041B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58196705U (en) * 1982-06-23 1983-12-27 オグラ金属株式会社 Fuel tank inside oil stove

Also Published As

Publication number Publication date
JPS5837041B2 (en) 1983-08-13

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