GB325552A - Improvements in and relating to electrodes for the electric heat treatment of metallic articles - Google Patents

Improvements in and relating to electrodes for the electric heat treatment of metallic articles

Info

Publication number
GB325552A
GB325552A GB33030A GB33030A GB325552A GB 325552 A GB325552 A GB 325552A GB 33030 A GB33030 A GB 33030A GB 33030 A GB33030 A GB 33030A GB 325552 A GB325552 A GB 325552A
Authority
GB
United Kingdom
Prior art keywords
electrode
strips
copper
electrode comprises
electrodes
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
GB33030A
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.)
FRANK WILLIAM THOMPSON
Original Assignee
FRANK WILLIAM THOMPSON
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 FRANK WILLIAM THOMPSON filed Critical FRANK WILLIAM THOMPSON
Priority to GB33030A priority Critical patent/GB325552A/en
Publication of GB325552A publication Critical patent/GB325552A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • H05B3/0004Devices wherein the heating current flows through the material to be heated

Landscapes

  • Heat Treatment Of Articles (AREA)
  • Resistance Heating (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

325,552. Thompson, F. W. Oct. 18, 1928. Divided on 328,270. Heating by electricity.-In apparatus for heating metal bars by passage of current therethrough e a c h electrode comprises a number of elements providing paths of different electrical resistance so that a desired temperature gradient is obtained over the contacting portions of the bar and electrode. The temperature gradient will also depend on the heat conductive properties of the elements. Two or more electrodes 7 are arranged at each end of the bar A to form clamping jaws. Each electrode is dovetailed into a water-jacket 3 mounted by means of a ball and socket joint on a rod 1. In Fig. 4 the electrode comprises a silicon chromium block 10 and copper strips 29 - - 34. A thin carbon strip 35 may be embodied in the electrode to produce a reducing atmosphere. In Fig. 5 a corundum member 36 enclosing a copper pin 37, and an additional copper strip 38 are employed. In Fig. 8 the electrode comprises strips 14 - - 17 of materials of different electrical conductivity mounted in a copper block 13. In one modification thereof the centre of the strips are removed and the interstices are filled with a refractory cement. In another modification, the strips are of different length and cross section 1 and may be of the same material if desired.
GB33030A 1928-10-18 1928-10-18 Improvements in and relating to electrodes for the electric heat treatment of metallic articles Expired GB325552A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB33030A GB325552A (en) 1928-10-18 1928-10-18 Improvements in and relating to electrodes for the electric heat treatment of metallic articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB33030A GB325552A (en) 1928-10-18 1928-10-18 Improvements in and relating to electrodes for the electric heat treatment of metallic articles

Publications (1)

Publication Number Publication Date
GB325552A true GB325552A (en) 1930-02-18

Family

ID=9702482

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33030A Expired GB325552A (en) 1928-10-18 1928-10-18 Improvements in and relating to electrodes for the electric heat treatment of metallic articles

Country Status (1)

Country Link
GB (1) GB325552A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2154839A (en) * 1984-02-18 1985-09-11 Ipw Limited Direct resistance heating electrode
US4760235A (en) * 1987-09-24 1988-07-26 Flater Anders H Male spot welding electrode
WO2020005820A1 (en) 2018-06-28 2020-01-02 Spirit Aerosystems, Inc. System and method employing active thermal buffer element for improved joule heating

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2154839A (en) * 1984-02-18 1985-09-11 Ipw Limited Direct resistance heating electrode
US4760235A (en) * 1987-09-24 1988-07-26 Flater Anders H Male spot welding electrode
WO2020005820A1 (en) 2018-06-28 2020-01-02 Spirit Aerosystems, Inc. System and method employing active thermal buffer element for improved joule heating
CN112385091A (en) * 2018-06-28 2021-02-19 势必锐航空系统有限公司 Systems and methods employing active thermal buffer elements to improve joule heating
EP3815191A4 (en) * 2018-06-28 2022-03-02 Spirit AeroSystems, Inc. SYSTEM AND METHOD USING AN ACTIVE THERMAL BUFFER ELEMENT FOR ENHANCED JOULE HEATING

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