GB599372A - Device for surface hardening cylindrical metallic elements of various diameters by means of high frequency induced currents - Google Patents

Device for surface hardening cylindrical metallic elements of various diameters by means of high frequency induced currents

Info

Publication number
GB599372A
GB599372A GB10159/44A GB1015944A GB599372A GB 599372 A GB599372 A GB 599372A GB 10159/44 A GB10159/44 A GB 10159/44A GB 1015944 A GB1015944 A GB 1015944A GB 599372 A GB599372 A GB 599372A
Authority
GB
United Kingdom
Prior art keywords
work pieces
surface hardening
various diameters
cylindrical metallic
high frequency
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
GB10159/44A
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.)
Patelhold Patenverwertungs and Elektro-Holding AG
Original Assignee
Patelhold Patenverwertungs and Elektro-Holding AG
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 Patelhold Patenverwertungs and Elektro-Holding AG filed Critical Patelhold Patenverwertungs and Elektro-Holding AG
Publication of GB599372A publication Critical patent/GB599372A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/36—Coil arrangements
    • H05B6/365—Coil arrangements using supplementary conductive or ferromagnetic pieces

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Heat Treatment Of Articles (AREA)
  • General Induction Heating (AREA)

Abstract

599,372. Electromagnetic induction heating apparatus. PATELHOLD PATENTVERWERTUNGS- & ELECTROHOLDING AKT.-GES. May 25, 1944, No. 10159. Convention date, June 23, 1943. [Class 39 (iii)] In surface hardening cylindrical metallic work pieces c, the same induction coil is used for work pieces of various diameters by inserting a concentric conductive intermediate element d of suitable dimensions between the induction coil b and the work piece c, so that between the coil and the element as well as between the element and the work piece a continuous uniform cylindrical gap is formed. The intermediate element d is cut open in a radial direction and may be hollow to allow the passage of a cooling fluid therethrough. Specification 599,367 is referred to. The Specification as open to inspection under Sect. 91 comprises also a corresponding arrangement such as is shown in Fig. 5 (Cancelled), for heating the inside surfaces of metal work pieces and the work pieces heated externally may be of any cross-section. This subjectmatter does not appear in the Specification as accepted.
GB10159/44A 1943-06-23 1944-05-25 Device for surface hardening cylindrical metallic elements of various diameters by means of high frequency induced currents Expired GB599372A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH599372X 1943-06-23

Publications (1)

Publication Number Publication Date
GB599372A true GB599372A (en) 1948-03-11

Family

ID=4522648

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10159/44A Expired GB599372A (en) 1943-06-23 1944-05-25 Device for surface hardening cylindrical metallic elements of various diameters by means of high frequency induced currents

Country Status (1)

Country Link
GB (1) GB599372A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3024761A (en) * 1958-07-01 1962-03-13 Ibm Vacuum evaporation apparatus
US4186729A (en) * 1977-11-25 1980-02-05 Donald L. Morton & Associates Deep heating electrode
US4325361A (en) * 1977-11-25 1982-04-20 Donald L. Morton & Associates Deep heating electrode
GB2311197A (en) * 1996-03-12 1997-09-17 Raychem Sa Nv Induction heating

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3024761A (en) * 1958-07-01 1962-03-13 Ibm Vacuum evaporation apparatus
US4186729A (en) * 1977-11-25 1980-02-05 Donald L. Morton & Associates Deep heating electrode
US4325361A (en) * 1977-11-25 1982-04-20 Donald L. Morton & Associates Deep heating electrode
GB2311197A (en) * 1996-03-12 1997-09-17 Raychem Sa Nv Induction heating

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