JPS5641017A - Measuring method for time of useless water injection - Google Patents

Measuring method for time of useless water injection

Info

Publication number
JPS5641017A
JPS5641017A JP11611579A JP11611579A JPS5641017A JP S5641017 A JPS5641017 A JP S5641017A JP 11611579 A JP11611579 A JP 11611579A JP 11611579 A JP11611579 A JP 11611579A JP S5641017 A JPS5641017 A JP S5641017A
Authority
JP
Japan
Prior art keywords
water injection
time
useless
injection valve
water
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
JP11611579A
Other languages
Japanese (ja)
Inventor
Yoshiro Seki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP11611579A priority Critical patent/JPS5641017A/en
Publication of JPS5641017A publication Critical patent/JPS5641017A/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
    • 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)
  • Testing And Monitoring For Control Systems (AREA)
  • Measurement Of Unknown Time Intervals (AREA)

Abstract

PURPOSE:To exactly measure the useless injection time of the water injection valve, and to improve the control accuracy of the coiling temperature, by installing the detector in the water injection apparatus in order to detect the flow of cooling water injected from the nozzle, in the controller for the hot strip coiling temperature, etc. CONSTITUTION:The water injection detector 43 is installed between the header 41 of the water injection apparatus for cooling the strip and the table roller 42; hereupon, a saucer 31 is arranged so as to be struck by the cooling water injected from the nozzle 22. The detector 43 is arranged so as to put ON the limit switch 32 at a specified water rate to be set by adjusting the pressure regulating spring 33. When the coiling temperature controller 44 produces the command ''ON'' to the water injection valve 14, the time from this command ''ON'' to the limit switch 32 ''ON'' becomes the useless ''ON'' time of the water injection valve 14. Meanwhile, the time from the command ''OFF'' to the limit switch 32 ''OFF'' also becomes the useless ''ON'' time of the water injection valve 14. By comparing these useless times with the specified value, the malfunction, etc., of the water injection valve 14 is judged.
JP11611579A 1979-09-12 1979-09-12 Measuring method for time of useless water injection Pending JPS5641017A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11611579A JPS5641017A (en) 1979-09-12 1979-09-12 Measuring method for time of useless water injection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11611579A JPS5641017A (en) 1979-09-12 1979-09-12 Measuring method for time of useless water injection

Publications (1)

Publication Number Publication Date
JPS5641017A true JPS5641017A (en) 1981-04-17

Family

ID=14679055

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11611579A Pending JPS5641017A (en) 1979-09-12 1979-09-12 Measuring method for time of useless water injection

Country Status (1)

Country Link
JP (1) JPS5641017A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60170521A (en) * 1984-02-16 1985-09-04 Sumitomo Light Metal Ind Ltd Method and device for cooling hot rolled material

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5237465A (en) * 1975-09-17 1977-03-23 Canadian Patents Dev Collating device for photogrammetory

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5237465A (en) * 1975-09-17 1977-03-23 Canadian Patents Dev Collating device for photogrammetory

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60170521A (en) * 1984-02-16 1985-09-04 Sumitomo Light Metal Ind Ltd Method and device for cooling hot rolled material

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