JPS5677018A - Detecting method for anomalous thickness deviation of hollow shell - Google Patents

Detecting method for anomalous thickness deviation of hollow shell

Info

Publication number
JPS5677018A
JPS5677018A JP15593579A JP15593579A JPS5677018A JP S5677018 A JPS5677018 A JP S5677018A JP 15593579 A JP15593579 A JP 15593579A JP 15593579 A JP15593579 A JP 15593579A JP S5677018 A JPS5677018 A JP S5677018A
Authority
JP
Japan
Prior art keywords
hollow shell
temperature deviation
maximum temperature
along
deviation
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
JP15593579A
Other languages
Japanese (ja)
Inventor
Hideyoshi Hara
Koichiro Nishikawa
Kanji Arimatsu
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 JP15593579A priority Critical patent/JPS5677018A/en
Publication of JPS5677018A publication Critical patent/JPS5677018A/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
    • B21B37/78—Control of tube rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

PURPOSE:To detect generation of the anomalous thickness deviation in the hollow shell, by measuring the surface temperatures along circumference of the hollow shell at multiple points, by operating the maximum temperature deviation from these measured values, and by comparing this maximum temperature deviation with previously set allowable value of the temperature deviation. CONSTITUTION:The heated round billet B is fed in the longitudinal direction by the piercer and a hollow shell HS under the condition of being pierced along the axial line is obtained; on the run-out side of the piercer, the surface temperatures of this hollow shell HS along its circumference are measured at multiple points by the temperature sensor TS. The measured values are sent to the data processor D, which then operates the maximum temperature deviation along the circumference of the hollow shell HS. At the same time, this maximum temperature deviation is compared with the previously set allowable limit; if the maximum temperature deviation exceeds the allowable limit, the generation of an anomalous thickness deviation is judged.
JP15593579A 1979-11-30 1979-11-30 Detecting method for anomalous thickness deviation of hollow shell Pending JPS5677018A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15593579A JPS5677018A (en) 1979-11-30 1979-11-30 Detecting method for anomalous thickness deviation of hollow shell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15593579A JPS5677018A (en) 1979-11-30 1979-11-30 Detecting method for anomalous thickness deviation of hollow shell

Publications (1)

Publication Number Publication Date
JPS5677018A true JPS5677018A (en) 1981-06-25

Family

ID=15616721

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15593579A Pending JPS5677018A (en) 1979-11-30 1979-11-30 Detecting method for anomalous thickness deviation of hollow shell

Country Status (1)

Country Link
JP (1) JPS5677018A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006089514A1 (en) * 2005-02-23 2006-08-31 V & M Deutschland Gmbh Method and device for monitoring the production process of hot-finished steel pipes
EP2080569A4 (en) * 2006-09-11 2012-07-11 Sumitomo Metal Ind DEVICE AND METHOD FOR MONITORING THE MANUFACTURE STATUS OF A SEAMLESS TUBE AND DEVICE FOR PRODUCING SEAMLESS TUBES
CN111069298A (en) * 2019-12-19 2020-04-28 太原重工股份有限公司 Digital control system and method for puncher

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006089514A1 (en) * 2005-02-23 2006-08-31 V & M Deutschland Gmbh Method and device for monitoring the production process of hot-finished steel pipes
JP2008531286A (en) * 2005-02-23 2008-08-14 ファウ・ウント・エム・ドイチュラント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング Method and apparatus for monitoring a machining process for producing a hot work tube from steel
EP2080569A4 (en) * 2006-09-11 2012-07-11 Sumitomo Metal Ind DEVICE AND METHOD FOR MONITORING THE MANUFACTURE STATUS OF A SEAMLESS TUBE AND DEVICE FOR PRODUCING SEAMLESS TUBES
CN111069298A (en) * 2019-12-19 2020-04-28 太原重工股份有限公司 Digital control system and method for puncher
CN111069298B (en) * 2019-12-19 2021-10-08 太原重工股份有限公司 Digital control system and method for puncher

Similar Documents

Publication Publication Date Title
JPS523486A (en) Detecting method of the surface flaw of metal material
JPS55132926A (en) Power measuring apparatus
JPS53145620A (en) Hue extractor
US3731536A (en) Apparatus for continually measuring the temperature of a continuously cast metal rod
JPS5677018A (en) Detecting method for anomalous thickness deviation of hollow shell
JPS5315160A (en) Sensitivity controller of self-scan image sensor in thermal radiating object measuring apparatus
JPS57110904A (en) Eddy-current system displacement gauge
JPH05312652A (en) Rolling roll surface temperature measuring device
JPS5638559A (en) Controlling method of ignition timing of internal combustion engine
JPS53116873A (en) Detection of uniform heating of rolled material
JPS57208424A (en) Surface temperature measuring method
JPS5250274A (en) Method of detecting occurence of temperature rise of continuous length and detecting element
JPS5612542A (en) Measuring method of transient impact fracture temperature
JPS5689357A (en) Detection of abnormality in continuous casting
JPS591133B2 (en) Rolled material length measuring device
JPS52153489A (en) Bending testing measurement method
JPS5435438A (en) Method for measuring temperature of works at heat treatment using glow discharge
JPS645646A (en) Detecting instrument for heat crown in twin rolls
JPS55130315A (en) Detecting method for tension of continuous rolling mill
JPS52138170A (en) Method and apparatus for detecting transporting speed of hot-rolling material
JPS55129875A (en) Double feed detection system for document
JPS5351116A (en) Forging method for heat resisting steel
JPS5242746A (en) Process for assorting the kind of automobiles
JPS6440110A (en) Method for automatic control of sheet thickness in rolling mill
Vavilov et al. Method of Determining Transverse Dimensions of Internal Flaws Detected by Thermal Inspection