FR647296A - Method and device for hardening objects made of ferromagnetic materials - Google Patents

Method and device for hardening objects made of ferromagnetic materials

Info

Publication number
FR647296A
FR647296A FR647296DA FR647296A FR 647296 A FR647296 A FR 647296A FR 647296D A FR647296D A FR 647296DA FR 647296 A FR647296 A FR 647296A
Authority
FR
France
Prior art keywords
ferromagnetic materials
objects made
hardening
hardening objects
ferromagnetic
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
Other languages
French (fr)
Inventor
Willy Heidenhain
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.)
EISEN U STAHLWERK HOESCH AG
Original Assignee
EISEN U STAHLWERK HOESCH 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 EISEN U STAHLWERK HOESCH AG filed Critical EISEN U STAHLWERK HOESCH AG
Application granted granted Critical
Publication of FR647296A publication Critical patent/FR647296A/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
    • C21D1/54—Determining when the hardening temperature has been reached by measurement of magnetic or electrical properties

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)
  • Heat Treatment Of Articles (AREA)
FR647296D 1926-12-28 1927-12-15 Method and device for hardening objects made of ferromagnetic materials Expired FR647296A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE282750X 1926-12-28

Publications (1)

Publication Number Publication Date
FR647296A true FR647296A (en) 1928-11-22

Family

ID=6042507

Family Applications (1)

Application Number Title Priority Date Filing Date
FR647296D Expired FR647296A (en) 1926-12-28 1927-12-15 Method and device for hardening objects made of ferromagnetic materials

Country Status (3)

Country Link
US (1) US1747934A (en)
FR (1) FR647296A (en)
GB (1) GB282750A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2506336A1 (en) * 1981-04-28 1982-11-26 Pavljukov Valentin PLANT FOR THE THERMAL AND CHEMOTHERMAL TREATMENT OF METAL PARTS
FR2515542A1 (en) * 1981-11-03 1983-05-06 Pk Tekhnolo DEVICE FOR ADVANCING REELS TO THE MATRIX OF A HOT DISCHARGE PRESS

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415376A (en) * 1943-05-29 1947-02-04 Budd Co Electromagnetic means for feeding a ferromagnetic charge to a furnace
US2464727A (en) * 1944-06-07 1949-03-15 Sunbeam Corp High-frequency inductor heattreating apparatus
US2505049A (en) * 1945-03-31 1950-04-25 Linde Air Prod Co Electric powder control
US2482545A (en) * 1945-07-24 1949-09-20 Gen Electric High-frequency heating apparatus
US2513778A (en) * 1946-11-09 1950-07-04 Chrysler Corp Heat-treating apparatus
US2697596A (en) * 1952-07-22 1954-12-21 Loftus Engineering Corp Magnetic brake for quenching apparatus
US2780666A (en) * 1954-04-06 1957-02-05 Mallory Sharon Titanium Corp Induction furnace control and method
US2823781A (en) * 1956-02-27 1958-02-18 Gen Electric Article handling apparatus
CH503112A (en) * 1969-02-04 1971-02-15 Borel Sa Furnace for hardening self-hardening alloy steels and high speed steels

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2506336A1 (en) * 1981-04-28 1982-11-26 Pavljukov Valentin PLANT FOR THE THERMAL AND CHEMOTHERMAL TREATMENT OF METAL PARTS
FR2515542A1 (en) * 1981-11-03 1983-05-06 Pk Tekhnolo DEVICE FOR ADVANCING REELS TO THE MATRIX OF A HOT DISCHARGE PRESS

Also Published As

Publication number Publication date
GB282750A (en) 1929-01-17
US1747934A (en) 1930-02-18

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