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WO2002028575A1 - Metallic seamless pipe and method of manufacturing the seamless pipe - Google Patents

Metallic seamless pipe and method of manufacturing the seamless pipe Download PDF

Info

Publication number
WO2002028575A1
WO2002028575A1 PCT/JP2000/006876 JP0006876W WO0228575A1 WO 2002028575 A1 WO2002028575 A1 WO 2002028575A1 JP 0006876 W JP0006876 W JP 0006876W WO 0228575 A1 WO0228575 A1 WO 0228575A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
seamless pipe
metallic
external surface
surface area
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.)
Ceased
Application number
PCT/JP2000/006876
Other languages
French (fr)
Japanese (ja)
Inventor
Norikazu Niimi
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.)
NGK Insulators Ltd
Original Assignee
NGK Insulators 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 NGK Insulators Ltd filed Critical NGK Insulators Ltd
Priority to PCT/JP2000/006876 priority Critical patent/WO2002028575A1/en
Priority to US09/957,261 priority patent/US6596100B2/en
Priority to CNB011353503A priority patent/CN1151539C/en
Priority to CZ20013545A priority patent/CZ296639B6/en
Priority to DE60107914T priority patent/DE60107914T2/en
Priority to EP01308458A priority patent/EP1195214B1/en
Publication of WO2002028575A1 publication Critical patent/WO2002028575A1/en
Anticipated expiration legal-status Critical
Priority to US10/423,593 priority patent/US7001570B2/en
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
    • H01J61/366—Seals for leading-in conductors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/11—Making porous workpieces or articles
    • B22F3/1103—Making porous workpieces or articles with particular physical characteristics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
    • C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
    • C22C32/0031—Matrix based on refractory metals, W, Mo, Nb, Hf, Ta, Zr, Ti, V or alloys thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

A metallic seamless pipe containing, as a main component, at least one type of metal selected from a group formed of those metals having melting points of 1600 °C or higher, characterized by having a porosity (ratio of open pores area not passing through a pipe wall in wall thickness direction to the pipe external surface area, where the total pipe external surface area is 100%) of 0.3 to 25%, the pipe being capable of being reduced in wall thickness and inside diameter thereof, and used suitably for the sealing member of an arc tube (for example, ceramic arc tube) of a high-pressure discharge lamp such as metal halide lamp excellent in mechanical strength and air-tightness.
PCT/JP2000/006876 2000-10-03 2000-10-03 Metallic seamless pipe and method of manufacturing the seamless pipe Ceased WO2002028575A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
PCT/JP2000/006876 WO2002028575A1 (en) 2000-10-03 2000-10-03 Metallic seamless pipe and method of manufacturing the seamless pipe
US09/957,261 US6596100B2 (en) 2000-10-03 2001-09-20 Metal-made seamless pipe and process for production thereof
CNB011353503A CN1151539C (en) 2000-10-03 2001-09-30 Seamless metal pipe and method for producing same
CZ20013545A CZ296639B6 (en) 2000-10-03 2001-10-02 Metal seamless pipe and its method of production
DE60107914T DE60107914T2 (en) 2000-10-03 2001-10-03 Nahltlosen metal tube and process for its preparation
EP01308458A EP1195214B1 (en) 2000-10-03 2001-10-03 Metal-made seamless pipe and process for production thereof
US10/423,593 US7001570B2 (en) 2000-10-03 2003-04-25 Metal-made seamless pipe and process for production thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2000/006876 WO2002028575A1 (en) 2000-10-03 2000-10-03 Metallic seamless pipe and method of manufacturing the seamless pipe

Publications (1)

Publication Number Publication Date
WO2002028575A1 true WO2002028575A1 (en) 2002-04-11

Family

ID=11736556

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2000/006876 Ceased WO2002028575A1 (en) 2000-10-03 2000-10-03 Metallic seamless pipe and method of manufacturing the seamless pipe

Country Status (1)

Country Link
WO (1) WO2002028575A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4931167A (en) * 1972-07-19 1974-03-20
EP0602530A2 (en) * 1992-12-14 1994-06-22 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Method for producing a vacuum-tight seal between a ceramic and a metallic part, especially for discharge vessels and lamps
JPH08134563A (en) * 1994-11-10 1996-05-28 Toshiba Corp Sintered member and manufacturing method thereof
EP0982278A1 (en) * 1998-08-26 2000-03-01 Ngk Insulators, Ltd. Joined bodies, high-pressure discharge lamps and a method for manufacturing the same
JP2000094090A (en) * 1998-09-21 2000-04-04 Toshiba Corp Casting mold and method of manufacturing the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4931167A (en) * 1972-07-19 1974-03-20
EP0602530A2 (en) * 1992-12-14 1994-06-22 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Method for producing a vacuum-tight seal between a ceramic and a metallic part, especially for discharge vessels and lamps
JPH08134563A (en) * 1994-11-10 1996-05-28 Toshiba Corp Sintered member and manufacturing method thereof
EP0982278A1 (en) * 1998-08-26 2000-03-01 Ngk Insulators, Ltd. Joined bodies, high-pressure discharge lamps and a method for manufacturing the same
JP2000094090A (en) * 1998-09-21 2000-04-04 Toshiba Corp Casting mold and method of manufacturing the same

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