JPS55148718A - High-frequency hardening method provided with short-circuit coil - Google Patents

High-frequency hardening method provided with short-circuit coil

Info

Publication number
JPS55148718A
JPS55148718A JP5778879A JP5778879A JPS55148718A JP S55148718 A JPS55148718 A JP S55148718A JP 5778879 A JP5778879 A JP 5778879A JP 5778879 A JP5778879 A JP 5778879A JP S55148718 A JPS55148718 A JP S55148718A
Authority
JP
Japan
Prior art keywords
coil
short
hardening
circuit coil
circuit
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.)
Granted
Application number
JP5778879A
Other languages
Japanese (ja)
Other versions
JPS5740206B2 (en
Inventor
Yoshikazu Okamoto
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.)
OUYOU KAGAKU KENKYUSHO
OYO KAGAKU KENKYUSHO
Original Assignee
OUYOU KAGAKU KENKYUSHO
OYO KAGAKU KENKYUSHO
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 OUYOU KAGAKU KENKYUSHO, OYO KAGAKU KENKYUSHO filed Critical OUYOU KAGAKU KENKYUSHO
Priority to JP5778879A priority Critical patent/JPS55148718A/en
Publication of JPS55148718A publication Critical patent/JPS55148718A/en
Publication of JPS5740206B2 publication Critical patent/JPS5740206B2/ja
Granted 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Induction Heating (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

PURPOSE:To make hardened layers to an even thickness by encircling the upper part of an end face by a short-circuit coil by taking a suitable spacing from a hardening coil which opposes to the end face. CONSTITUTION:A circular hardening coil 2 is disposed in opposition to the material 1 to be hardened. Further, a short-circuit coil 3 encircling the material 1 is provided and a spacing from the hardening coil 2 is suitably taken. As a result of the above, the electric current flowing in the short-circuit coil 3 is opposite in the direction from the electric current in the hardening coil 2 and therefore the magnetic flux generated becomes opposite in the material. Hence, the hardened layer of an even thickness such as the one shown by oblique lines is obtained in the material 1. To automate the hardening, the hardening coil 2 becomes of hairpin type and the short-circuit coil 3 becomes similar hairpin type as well and the material moves between the hairpin coils while revolving.
JP5778879A 1979-05-11 1979-05-11 High-frequency hardening method provided with short-circuit coil Granted JPS55148718A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5778879A JPS55148718A (en) 1979-05-11 1979-05-11 High-frequency hardening method provided with short-circuit coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5778879A JPS55148718A (en) 1979-05-11 1979-05-11 High-frequency hardening method provided with short-circuit coil

Publications (2)

Publication Number Publication Date
JPS55148718A true JPS55148718A (en) 1980-11-19
JPS5740206B2 JPS5740206B2 (en) 1982-08-26

Family

ID=13065614

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5778879A Granted JPS55148718A (en) 1979-05-11 1979-05-11 High-frequency hardening method provided with short-circuit coil

Country Status (1)

Country Link
JP (1) JPS55148718A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6280991A (en) * 1985-10-03 1987-04-14 三菱電機株式会社 Heating method for end face of article to be heated

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6280991A (en) * 1985-10-03 1987-04-14 三菱電機株式会社 Heating method for end face of article to be heated

Also Published As

Publication number Publication date
JPS5740206B2 (en) 1982-08-26

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