ATE136721T1 - DEVICE AND METHOD FOR INDUCTION HARDENING OF MACHINE COMPONENTS WITH ACCURATE OUTPUT POWER CONTROL - Google Patents

DEVICE AND METHOD FOR INDUCTION HARDENING OF MACHINE COMPONENTS WITH ACCURATE OUTPUT POWER CONTROL

Info

Publication number
ATE136721T1
ATE136721T1 AT91914109T AT91914109T ATE136721T1 AT E136721 T1 ATE136721 T1 AT E136721T1 AT 91914109 T AT91914109 T AT 91914109T AT 91914109 T AT91914109 T AT 91914109T AT E136721 T1 ATE136721 T1 AT E136721T1
Authority
AT
Austria
Prior art keywords
pulse
machine components
induction hardening
power control
predetermined
Prior art date
Application number
AT91914109T
Other languages
German (de)
Inventor
John M Storm
Spencer L Gibbs
Original Assignee
Contour Hardening Inc
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
Priority claimed from US07/563,398 external-priority patent/US5053596A/en
Application filed by Contour Hardening Inc filed Critical Contour Hardening Inc
Application granted granted Critical
Publication of ATE136721T1 publication Critical patent/ATE136721T1/en

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
    • H05B6/06—Control, e.g. of temperature, of power
    • 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
    • H05B6/40—Establishing desired heat distribution, e.g. to heat particular parts of workpieces
    • H05B6/405—Establishing desired heat distribution, e.g. to heat particular parts of workpieces for heating gear-wheels

Landscapes

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

Abstract

An induction hardening machine for contour hardening of machine components such as gears includes a phase angle detector circuit (112) which produces a pulse for each corresponding detection of a predetermined phase angle of an AC signal. A start switch (SW2) and the pulse produced by the phase detector provide inputs to a circuit (116) which requires concurrence of the pulse and activation of the switch before a predetermined width signal pulse is produced. The predetermined width signal pulse activates power switching devices (114) to supply a predetermined power signal to an RF generator (120) coupled to an induction heating coil (128). Precise induction heating is accomplished via precise control of power input to the RF generator (120).
AT91914109T 1990-08-06 1991-07-25 DEVICE AND METHOD FOR INDUCTION HARDENING OF MACHINE COMPONENTS WITH ACCURATE OUTPUT POWER CONTROL ATE136721T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/563,398 US5053596A (en) 1990-08-06 1990-08-06 Apparatus and method of induction-hardening machine components with precise power output control
US69334391A 1991-04-30 1991-04-30

Publications (1)

Publication Number Publication Date
ATE136721T1 true ATE136721T1 (en) 1996-04-15

Family

ID=27073275

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91914109T ATE136721T1 (en) 1990-08-06 1991-07-25 DEVICE AND METHOD FOR INDUCTION HARDENING OF MACHINE COMPONENTS WITH ACCURATE OUTPUT POWER CONTROL

Country Status (10)

Country Link
EP (1) EP0542813B1 (en)
JP (1) JP2885511B2 (en)
KR (1) KR970011547B1 (en)
AT (1) ATE136721T1 (en)
AU (1) AU649062B2 (en)
BR (1) BR9106736A (en)
CA (1) CA2046851C (en)
DE (1) DE69118699T2 (en)
RU (1) RU2113773C1 (en)
WO (1) WO1992003026A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018137857A1 (en) * 2017-01-25 2018-08-02 Tetra Laval Holdings & Finance S.A. A method of controlling an inductive heating circuit to seal a packaging material

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US464553A (en) * 1891-12-08 Piano
JPS5820226B2 (en) * 1976-01-14 1983-04-22 松下電器産業株式会社 static power converter
JPS6213351Y2 (en) * 1980-07-19 1987-04-06
US4511956A (en) * 1981-11-30 1985-04-16 Park-Ohio Industries, Inc. Power inverter using separate starting inverter
JPS59103292A (en) * 1982-12-03 1984-06-14 三洋電機株式会社 Induction heating cooking device
FR2567693B1 (en) * 1984-07-13 1986-11-14 Saphymo Stel Applic Phys Mod E POWER STATIC FREQUENCY CONVERTER
KR890001600Y1 (en) * 1986-04-23 1989-04-06 주식회사금성사 Power control device of microwaves oven
US4845328A (en) * 1988-01-13 1989-07-04 Contour Hardening Investors, Ltd. Apparatus for and method of induction-hardening machine components

Also Published As

Publication number Publication date
DE69118699D1 (en) 1996-05-15
KR970011547B1 (en) 1997-07-11
DE69118699T2 (en) 1996-08-29
AU8309291A (en) 1992-03-02
JPH06500150A (en) 1994-01-06
EP0542813A1 (en) 1993-05-26
BR9106736A (en) 1993-07-06
EP0542813A4 (en) 1993-09-15
CA2046851C (en) 1995-03-07
RU2113773C1 (en) 1998-06-20
AU649062B2 (en) 1994-05-12
CA2046851A1 (en) 1992-02-07
JP2885511B2 (en) 1999-04-26
WO1992003026A1 (en) 1992-02-20
EP0542813B1 (en) 1996-04-10

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Legal Events

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