JPS503946A - - Google Patents

Info

Publication number
JPS503946A
JPS503946A JP48054098A JP5409873A JPS503946A JP S503946 A JPS503946 A JP S503946A JP 48054098 A JP48054098 A JP 48054098A JP 5409873 A JP5409873 A JP 5409873A JP S503946 A JPS503946 A JP S503946A
Authority
JP
Japan
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.)
Granted
Application number
JP48054098A
Other versions
JPS5118385B2 (ja
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 filed Critical
Priority to JP48054098A priority Critical patent/JPS5118385B2/ja
Priority to US469564A priority patent/US3879972A/en
Priority to IT22760/74A priority patent/IT1012399B/it
Priority to DE2424005A priority patent/DE2424005C3/de
Publication of JPS503946A publication Critical patent/JPS503946A/ja
Publication of JPS5118385B2 publication Critical patent/JPS5118385B2/ja
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
    • B21B25/06—Interchanging mandrels, fixing plugs on mandrel rods or cooling during interchanging mandrels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
JP48054098A 1973-05-17 1973-05-17 Expired JPS5118385B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP48054098A JPS5118385B2 (ja) 1973-05-17 1973-05-17
US469564A US3879972A (en) 1973-05-17 1974-05-13 Method and apparatus for removing a plug
IT22760/74A IT1012399B (it) 1973-05-17 1974-05-15 Metodo ed apparecchiatura per la rimozione di una spina
DE2424005A DE2424005C3 (de) 1973-05-17 1974-05-17 Verfahren zum Entfernen eines Doms aus einem Walzwerk sowie Vorrichtung zur Durchführung dieses Verfahrens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48054098A JPS5118385B2 (ja) 1973-05-17 1973-05-17

Publications (2)

Publication Number Publication Date
JPS503946A true JPS503946A (ja) 1975-01-16
JPS5118385B2 JPS5118385B2 (ja) 1976-06-09

Family

ID=12961133

Family Applications (1)

Application Number Title Priority Date Filing Date
JP48054098A Expired JPS5118385B2 (ja) 1973-05-17 1973-05-17

Country Status (4)

Country Link
US (1) US3879972A (ja)
JP (1) JPS5118385B2 (ja)
DE (1) DE2424005C3 (ja)
IT (1) IT1012399B (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51101238U (ja) * 1975-02-07 1976-08-13
JPS5217040A (en) * 1975-07-28 1977-02-08 Siemens Ag Indicating instrument
JPS5549346U (ja) * 1978-09-20 1980-03-31
JPS58125690U (ja) * 1982-11-02 1983-08-26 株式会社相沢鉄工所 プレスの表示装置
JPS6415602U (ja) * 1987-07-14 1989-01-26

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6158262A (en) * 1997-10-13 2000-12-12 Sumitomo Metal Industries, Ltd. Piercing mill and cannon exchange method
CN102151702B (zh) * 2011-05-05 2012-07-25 山东墨龙石油机械股份有限公司 无缝钢管轧机后导向装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US651714A (en) * 1900-02-10 1900-06-12 Ellwood Ivins Seamless-tube-rolling machine.
US971512A (en) * 1909-01-29 1910-10-04 Wallace H Rowe Machine for piercing billets.
US1141426A (en) * 1911-05-03 1915-06-01 Frank E Simpkins Mandrel stripping and cooling mechanism.
US1919390A (en) * 1931-08-28 1933-07-25 Nat Tube Co Expanding mill
US2583834A (en) * 1948-09-03 1952-01-29 United States Steel Corp Automatic twin bar-bridge bench piercer mill
US2771800A (en) * 1952-03-06 1956-11-27 United States Steel Corp Plug rolling mill

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51101238U (ja) * 1975-02-07 1976-08-13
JPS5217040A (en) * 1975-07-28 1977-02-08 Siemens Ag Indicating instrument
JPS5549346U (ja) * 1978-09-20 1980-03-31
JPS58125690U (ja) * 1982-11-02 1983-08-26 株式会社相沢鉄工所 プレスの表示装置
JPS6415602U (ja) * 1987-07-14 1989-01-26

Also Published As

Publication number Publication date
US3879972A (en) 1975-04-29
DE2424005B2 (de) 1978-12-14
DE2424005A1 (de) 1974-12-05
DE2424005C3 (de) 1979-08-16
IT1012399B (it) 1977-03-10
JPS5118385B2 (ja) 1976-06-09

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