GB591150A - Improvements in or relating to the high frequency induction heating of metals - Google Patents

Improvements in or relating to the high frequency induction heating of metals

Info

Publication number
GB591150A
GB591150A GB24286/44A GB2428644A GB591150A GB 591150 A GB591150 A GB 591150A GB 24286/44 A GB24286/44 A GB 24286/44A GB 2428644 A GB2428644 A GB 2428644A GB 591150 A GB591150 A GB 591150A
Authority
GB
United Kingdom
Prior art keywords
frequencies
metals
induction heating
relating
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
GB24286/44A
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.)
ALAN JULIAN MADDCOK
STC PLC
Original Assignee
ALAN JULIAN MADDCOK
Standard Telephone and Cables PLC
Filing date
Publication date
Application filed by ALAN JULIAN MADDCOK, Standard Telephone and Cables PLC filed Critical ALAN JULIAN MADDCOK
Publication of GB591150A publication Critical patent/GB591150A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/06—Surface hardening
    • C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
    • C21D1/10—Surface hardening by direct application of electrical or wave energy; by particle radiation by electric induction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Abstract

591,150. Induction heating. STANDARD TELEPHONES & CABLES, Ltd., and MADDOCK, A. J. Dec. 5, 1944, No. 24286. Drawings to Specification. [Class 39 (iii)] Heating metals by high-frequency electric fields so as to control the heating effects at different depths within the metal by means of a plurality of frequencies, has for its object a less steep temperature gradient than that obtainable with a single high-frequency field. In one method described, separate H.F. generation and inductor coils operating at different frequencies are employed. In another method, one inductor coil is fed from a single generator supplying two or more frequencies. Various methods of generating the desired frequencies are described.
GB24286/44A 1944-12-05 Improvements in or relating to the high frequency induction heating of metals Expired GB591150A (en)

Publications (1)

Publication Number Publication Date
GB591150A true GB591150A (en) 1947-08-08

Family

ID=1738249

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24286/44A Expired GB591150A (en) 1944-12-05 Improvements in or relating to the high frequency induction heating of metals

Country Status (1)

Country Link
GB (1) GB591150A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2663789A (en) * 1950-08-12 1953-12-22 Westinghouse Electric Corp Heat-treatment apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2663789A (en) * 1950-08-12 1953-12-22 Westinghouse Electric Corp Heat-treatment apparatus

Similar Documents

Publication Publication Date Title
ES413004A1 (en) Method and apparatus for dissipating high frequency energy inside a material to be treated
GB1017012A (en) Improvements in plasma heating systems
GB591150A (en) Improvements in or relating to the high frequency induction heating of metals
GB1021150A (en) A method of and apparatus for electro-magnetically deforming metal
GB583833A (en) Improvements relating to high frequency electrical heating apparatus
SU352610A1 (en) METHOD OF HEATING PLASMA
GB583142A (en) Improvements in or relating to coating insulating surfaces with metal
GB1139049A (en) Improvements in or relating to a high frequency heating system for producing a plasma by induction heating
GB714488A (en) Improvements in or relating to high frequency induction heating apparatus
GB568637A (en) Method and apparatus for electric induction heating of articles
GB622023A (en) Improvements in or relating to devices for heating by high-frequency alternating currents
SU64162A1 (en) Device for induction heating of ferromagnetic products
SU124566A3 (en) High frequency induction unit for heating or hardening metal products
GB599306A (en) Improvements in or relating to coils for high frequency inductive heating purposes
GB654989A (en) A high-frequency oscillation generator using a gas- or vapour-filled discharge tube with controllable time of ignition
GB576791A (en) Inductor element
GB641194A (en) Devices for the heating of work-pieces by induced high frequency currents
GB575424A (en) Improvements in or relating to induction-heating apparatus
GB717067A (en) Improvements in or relating to devices for treating work-pieces of a tubular shape by inductive heating in a magnetic high-frequency field
GB571808A (en) Surface hardening of steel
GB626332A (en) Improvements in or relating to heating with high-frequency electric current
GB633045A (en) Improvements relating to heating heads for heating articles by induced electric current
FR2301903A1 (en) Focussing coil for beam tube electromagnets - is in two parts which are fed from common supply and one part has high impedance and other part has low impedance
GB728204A (en) Improvements in or relating to methods of and devices for high-frequency heating
GB686959A (en) Method of heating longitudinally extending metal articles in electric high frequency induction furnaces