GB237902A - Improvements in and relating to welding electrodes - Google Patents

Improvements in and relating to welding electrodes

Info

Publication number
GB237902A
GB237902A GB18774/25A GB1877425A GB237902A GB 237902 A GB237902 A GB 237902A GB 18774/25 A GB18774/25 A GB 18774/25A GB 1877425 A GB1877425 A GB 1877425A GB 237902 A GB237902 A GB 237902A
Authority
GB
United Kingdom
Prior art keywords
copper
hydrogen atmosphere
excess
powdered
tungsten
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
GB18774/25A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB237902A publication Critical patent/GB237902A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/222—Non-consumable electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

237,902. British Thomson-Houston Co., Ltd., (Assignees of Gillette, R. T.). July 30, 1924, [Convention date]. Metals, powdered, obtaining coherent masses from. - Electrodes for resistance welding are made of a mixture consisting of 9 parts by weight of finely divided copper consolidated by pressure to form a coherent body and fired in a hydrogen atmosphere at a temperature of 1200- 1600‹ C. In a modification, the powdered tungsten is fashioned to the required shape in a press and is then partially sintered at 1500‹ C. in a hydrogen atmosphere. The mass is then placed in a graphite box with an excess of copper and heated to 1300‹ C. in a hydrogen atmosphere, the copper filling the voids in the porous mass of tungsten. The excess copper is removed by machining.
GB18774/25A 1924-07-30 1925-07-23 Improvements in and relating to welding electrodes Expired GB237902A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US237902XA 1924-07-30 1924-07-30

Publications (1)

Publication Number Publication Date
GB237902A true GB237902A (en) 1926-04-01

Family

ID=21817202

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18774/25A Expired GB237902A (en) 1924-07-30 1925-07-23 Improvements in and relating to welding electrodes

Country Status (1)

Country Link
GB (1) GB237902A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2282557A (en) * 1993-10-08 1995-04-12 Honda Motor Co Ltd Resistance welding electrode
WO2001098018A1 (en) * 2000-06-21 2001-12-27 Siemens Aktiengesellschaft Method for connecting shape-memory material and steel or copper material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2282557A (en) * 1993-10-08 1995-04-12 Honda Motor Co Ltd Resistance welding electrode
GB2282557B (en) * 1993-10-08 1996-05-22 Honda Motor Co Ltd Resistance welding electrode
US5611945A (en) * 1993-10-08 1997-03-18 Honda Giken Kogyo Kabushiki Kaisha Resistance welding electrode
WO2001098018A1 (en) * 2000-06-21 2001-12-27 Siemens Aktiengesellschaft Method for connecting shape-memory material and steel or copper material

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