JPS5677017A - Detecting method for amount of dog-bone in edging work - Google Patents

Detecting method for amount of dog-bone in edging work

Info

Publication number
JPS5677017A
JPS5677017A JP15297579A JP15297579A JPS5677017A JP S5677017 A JPS5677017 A JP S5677017A JP 15297579 A JP15297579 A JP 15297579A JP 15297579 A JP15297579 A JP 15297579A JP S5677017 A JPS5677017 A JP S5677017A
Authority
JP
Japan
Prior art keywords
dog
bone
amount
rolling load
rolling
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
JP15297579A
Other languages
Japanese (ja)
Inventor
Kenichi Yasuda
Hiroshi Awatsuhara
Sukefumi Tsumura
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 JP15297579A priority Critical patent/JPS5677017A/en
Publication of JPS5677017A publication Critical patent/JPS5677017A/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
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/22—Lateral spread control; Width control, e.g. by edge rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/06—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged vertically, e.g. edgers

Landscapes

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

Abstract

PURPOSE:To detect the amount of dog-bone easily in high accuracy, by comparing the value of rolling load, calculated on the assumption of taking the slab thickness as the breadth, with the actual rolling load, and by calculating the amount of dog- bone from the difference obtained by above stated comparison. CONSTITUTION:Information on the rolling load obtained from the vertical roll 3 is inputted to the operator 7 through the load cells 5, 6; the operator sums up these rolling loads and obtains the rolling load PEX. On the other hand, the rolling load PCAL is calculated from information inputted from the setting console 8 to the computer 9. Two rolling loads PEX, PCAL, are inputted to the computer 10 which then calculates their ratio; this rolling load ratio is referred to the previously obtained relation between the rolling load ratio and the amount of dog-bone, and the amount of dog-bone is calculated.
JP15297579A 1979-11-28 1979-11-28 Detecting method for amount of dog-bone in edging work Pending JPS5677017A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15297579A JPS5677017A (en) 1979-11-28 1979-11-28 Detecting method for amount of dog-bone in edging work

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15297579A JPS5677017A (en) 1979-11-28 1979-11-28 Detecting method for amount of dog-bone in edging work

Publications (1)

Publication Number Publication Date
JPS5677017A true JPS5677017A (en) 1981-06-25

Family

ID=15552217

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15297579A Pending JPS5677017A (en) 1979-11-28 1979-11-28 Detecting method for amount of dog-bone in edging work

Country Status (1)

Country Link
JP (1) JPS5677017A (en)

Similar Documents

Publication Publication Date Title
GB1325883A (en) Method of and apparatus for revising workpiece temperature estimates or measurements using workpiece deformation behavior
JPS5677017A (en) Detecting method for amount of dog-bone in edging work
JPS53127353A (en) Method and apparatus for rolling by multistage rolling mill
JPS5467550A (en) Shape control of rolled material
JPS522452A (en) Method and apparatus for measuring plate thickness
JPS5359456A (en) Correction method of working curve in radiation glavanizing thicknessmeasuring apparatus
JPS6478612A (en) Arithmetic unit for gap between rolls of multistage rolling mill
JPS5586617A (en) Rolling method for sheet material possessing longitudinal thickness change
JPS54155164A (en) Detecting method for high spot
JPS569006A (en) Rolling method for preventing high spot of hot strip
JPS57127513A (en) Zero point adjusting method for roll gap of steel shapes rolling mill
JPS59141310A (en) Method for estimating sheet thickness at outlet side in rolling mill
JPS57106408A (en) Method for presuming rolling load
JPS56168904A (en) Computing system for rolling schedule
JPS551957A (en) Method and apparatus for controlling of rolling mills
JPS60158910A (en) Control method of rolling in sheet width direction
JPS5653808A (en) Controlling method for sheet breadth in hot rolling mill
JPS5564911A (en) Rough rolling method
JPS57109524A (en) Measuring method for back-up roll crown of four-stage rolling mill
Polukhin et al. Profiling of Rolls for 20-Roll Stands
JPS5734222A (en) Graph for estimating relation between grade and cost of building and its estimation method
JPS5619916A (en) Tension controller
JPS56162005A (en) Method for measuring plate thickness distribution of strip
JPS5422857A (en) Cooling method of radiation thickness meter
JPS5656751A (en) Failure temperature estimating method of die for hot forging