JPS6254564B2 - - Google Patents

Info

Publication number
JPS6254564B2
JPS6254564B2 JP21735382A JP21735382A JPS6254564B2 JP S6254564 B2 JPS6254564 B2 JP S6254564B2 JP 21735382 A JP21735382 A JP 21735382A JP 21735382 A JP21735382 A JP 21735382A JP S6254564 B2 JPS6254564 B2 JP S6254564B2
Authority
JP
Japan
Prior art keywords
boom
pipe
raw
extrusion molding
hydraulic cylinder
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.)
Expired
Application number
JP21735382A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59107722A (ja
Inventor
Sadao Kimura
Mitsuyoshi Sakio
Gakuo Kitawaki
Susumu Kodama
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.)
TOYO TOKUSHU KOGYO KK
Original Assignee
TOYO TOKUSHU KOGYO 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 TOYO TOKUSHU KOGYO KK filed Critical TOYO TOKUSHU KOGYO KK
Priority to JP21735382A priority Critical patent/JPS59107722A/ja
Publication of JPS59107722A publication Critical patent/JPS59107722A/ja
Publication of JPS6254564B2 publication Critical patent/JPS6254564B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/16—Making tubes with varying diameter in longitudinal direction

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
JP21735382A 1982-12-10 1982-12-10 押出成形加工方法 Granted JPS59107722A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21735382A JPS59107722A (ja) 1982-12-10 1982-12-10 押出成形加工方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21735382A JPS59107722A (ja) 1982-12-10 1982-12-10 押出成形加工方法

Publications (2)

Publication Number Publication Date
JPS59107722A JPS59107722A (ja) 1984-06-22
JPS6254564B2 true JPS6254564B2 (OSRAM) 1987-11-16

Family

ID=16702840

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21735382A Granted JPS59107722A (ja) 1982-12-10 1982-12-10 押出成形加工方法

Country Status (1)

Country Link
JP (1) JPS59107722A (OSRAM)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009038201A1 (ja) * 2007-09-19 2009-03-26 Kouzan Technology Corporation フォーミング装置
JP2015508148A (ja) * 2012-02-10 2015-03-16 フェデラル−モーグル コーポレイション ピストン、ピストンのための冷却されたピストンリング、およびピストンリングの構成方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009038201A1 (ja) * 2007-09-19 2009-03-26 Kouzan Technology Corporation フォーミング装置
JP5236656B2 (ja) * 2007-09-19 2013-07-17 興山テクノ株式会社 フォーミング装置
JP2015508148A (ja) * 2012-02-10 2015-03-16 フェデラル−モーグル コーポレイション ピストン、ピストンのための冷却されたピストンリング、およびピストンリングの構成方法

Also Published As

Publication number Publication date
JPS59107722A (ja) 1984-06-22

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