JPS56165501A - Method and appararus for differential speed rolling work - Google Patents

Method and appararus for differential speed rolling work

Info

Publication number
JPS56165501A
JPS56165501A JP6814380A JP6814380A JPS56165501A JP S56165501 A JPS56165501 A JP S56165501A JP 6814380 A JP6814380 A JP 6814380A JP 6814380 A JP6814380 A JP 6814380A JP S56165501 A JPS56165501 A JP S56165501A
Authority
JP
Japan
Prior art keywords
speed roll
rolling
equidiametral
slab
small
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
JP6814380A
Other languages
Japanese (ja)
Inventor
Nobuhiro Tazoe
Kiyoshi Kizaki
Koji Shirakawa
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
Original Assignee
IHI 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 filed Critical IHI Corp
Priority to JP6814380A priority Critical patent/JPS56165501A/en
Publication of JPS56165501A publication Critical patent/JPS56165501A/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
    • 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
    • B21B1/224—Edge rolling of flat products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2263/00—Shape of product
    • B21B2263/20—End shape; fish tail; tongue
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2267/00—Roll parameters
    • B21B2267/02—Roll dimensions
    • B21B2267/06—Roll diameter
    • B21B2267/065—Top and bottom roll have different diameters; Asymmetrical rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2275/00—Mill drive parameters
    • B21B2275/02—Speed
    • B21B2275/04—Roll speed
    • B21B2275/05—Speed difference between top and bottom rolls

Landscapes

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

Abstract

PURPOSE:To diminish the size of the fish tail part, at applying an edging work to a slab, by symmetrically arranging in two stages an upper and a lower rolling stands provided with rolls of small and large diameters or of the same diameter, driven to rotate at different circumferential speeds from each other. CONSTITUTION:The titled rolling apparatus comprises the rolling stands 1 and 2 arranged symmetrically in upper and lower two stages. The said rolling stand 1 is provided with an equidiametral high speed roll 3 or a large diameter different speed roll 3', and an equidiametral low speed roll 4 or a small diameter different speed roll 4'. The rolling stand 2 is provided with an equidiametral low speed roll 4 or a small diameter different speed roll 4' and an equidiametral high speed roll 3 or a large diameter different speed roll 3'. A strong reduction in breadth is given to a slab 5 by the rolling stand 1 of this rolling apparatus, and then, a rolling work is applied by the rolling stand 2; hereby, the broadside spread 7 on both sides of the top of the slab 5 becomes very small so that the yield is improved.
JP6814380A 1980-05-22 1980-05-22 Method and appararus for differential speed rolling work Pending JPS56165501A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6814380A JPS56165501A (en) 1980-05-22 1980-05-22 Method and appararus for differential speed rolling work

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6814380A JPS56165501A (en) 1980-05-22 1980-05-22 Method and appararus for differential speed rolling work

Publications (1)

Publication Number Publication Date
JPS56165501A true JPS56165501A (en) 1981-12-19

Family

ID=13365218

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6814380A Pending JPS56165501A (en) 1980-05-22 1980-05-22 Method and appararus for differential speed rolling work

Country Status (1)

Country Link
JP (1) JPS56165501A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6136801A (en) * 1984-07-30 1986-02-21 Toshiba Corp Decentralized controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6136801A (en) * 1984-07-30 1986-02-21 Toshiba Corp Decentralized controller

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