JPS54133462A - Direct rolling mill - Google Patents

Direct rolling mill

Info

Publication number
JPS54133462A
JPS54133462A JP4118278A JP4118278A JPS54133462A JP S54133462 A JPS54133462 A JP S54133462A JP 4118278 A JP4118278 A JP 4118278A JP 4118278 A JP4118278 A JP 4118278A JP S54133462 A JPS54133462 A JP S54133462A
Authority
JP
Japan
Prior art keywords
speed
motor
signal
reducing roller
rotation
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
JP4118278A
Other languages
Japanese (ja)
Inventor
Tomoaki Kimura
Tadashi Nishino
Haruo Kinoshita
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4118278A priority Critical patent/JPS54133462A/en
Publication of JPS54133462A publication Critical patent/JPS54133462A/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
    • B21B1/46—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 metal immediately subsequent to continuous casting
    • B21B1/463—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 metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B2035/005—Hydraulic drive motors

Abstract

PURPOSE:To employ the AC motor for the driver of the reducing roller, by driving the reducing roller by the AC motor and the auxiliary driver. CONSTITUTION:The feed rate of molten metal is detected by the detector 5 which sends a signal to the speed command device 6. The speed command device 6 sends a signal to the controller 15 which can not quickly accelerate the electromagnetic coupling type variable speed AC motor 13 due to the large inertia of the motor itself. The acceleration/deceleration command device 18 receives the acceleration signal from the speed command device 6, and sends a signal to the servo-valve controller 17 for controlling the servo-valve 16 which then accelerates the rotation of the hydraulic motor 14. The hydraulic motor 14 quickly accelerates the rotation soon after the acceleration signal is inputted; hereby, the rotation of the vertical reducing roller 10 is easily accelerated, so that the rolling speed is synchronized to the casting speed. In case of deceleration of the rotation of the vertical reducing roller 10, similarly, the vertical reducing roller 10 is decelerated by the braking torque of the hydraulic motor 14, and the rolling speed is synchronized to the casting speed.
JP4118278A 1978-04-10 1978-04-10 Direct rolling mill Pending JPS54133462A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4118278A JPS54133462A (en) 1978-04-10 1978-04-10 Direct rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4118278A JPS54133462A (en) 1978-04-10 1978-04-10 Direct rolling mill

Publications (1)

Publication Number Publication Date
JPS54133462A true JPS54133462A (en) 1979-10-17

Family

ID=12601269

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4118278A Pending JPS54133462A (en) 1978-04-10 1978-04-10 Direct rolling mill

Country Status (1)

Country Link
JP (1) JPS54133462A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62187505A (en) * 1986-02-12 1987-08-15 Kawasaki Steel Corp Method and installation for producing hot steel strip
JPS6356301A (en) * 1986-08-25 1988-03-10 Kawasaki Steel Corp Equipment for hot production of steel strip

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62187505A (en) * 1986-02-12 1987-08-15 Kawasaki Steel Corp Method and installation for producing hot steel strip
JPS6356301A (en) * 1986-08-25 1988-03-10 Kawasaki Steel Corp Equipment for hot production of steel strip

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