IT1012399B - Metodo ed apparecchiatura per la rimozione di una spina - Google Patents

Metodo ed apparecchiatura per la rimozione di una spina

Info

Publication number
IT1012399B
IT1012399B IT22760/74A IT2276074A IT1012399B IT 1012399 B IT1012399 B IT 1012399B IT 22760/74 A IT22760/74 A IT 22760/74A IT 2276074 A IT2276074 A IT 2276074A IT 1012399 B IT1012399 B IT 1012399B
Authority
IT
Italy
Prior art keywords
plug
equipment
Prior art date
Application number
IT22760/74A
Other languages
English (en)
Inventor
Kanai Senshu
Kamimura Haruo
Numano Masachika
Original Assignee
Nippon Kokan Kk
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 Nippon Kokan Kk filed Critical Nippon Kokan Kk
Application granted granted Critical
Publication of IT1012399B publication Critical patent/IT1012399B/it

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)
IT22760/74A 1973-05-17 1974-05-15 Metodo ed apparecchiatura per la rimozione di una spina IT1012399B (it)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
IT1012399B true IT1012399B (it) 1977-03-10

Family

ID=12961133

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22760/74A IT1012399B (it) 1973-05-17 1974-05-15 Metodo ed apparecchiatura per la rimozione di una spina

Country Status (4)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51101238U (it) * 1975-02-07 1976-08-13
JPS5217040A (en) * 1975-07-28 1977-02-08 Siemens Ag Indicating instrument
JPS5912772Y2 (ja) * 1978-09-20 1984-04-17 三洋電機株式会社 テ−プレコ−ダ−の制御回路
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 (it) * 1987-07-14 1989-01-26
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

Also Published As

Publication number Publication date
DE2424005A1 (de) 1974-12-05
US3879972A (en) 1975-04-29
DE2424005C3 (de) 1979-08-16
JPS5118385B2 (it) 1976-06-09
JPS503946A (it) 1975-01-16
DE2424005B2 (de) 1978-12-14

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