FR980720A - Improvements to electric heating resistances - Google Patents

Improvements to electric heating resistances

Info

Publication number
FR980720A
FR980720A FR980720DA FR980720A FR 980720 A FR980720 A FR 980720A FR 980720D A FR980720D A FR 980720DA FR 980720 A FR980720 A FR 980720A
Authority
FR
France
Prior art keywords
electric heating
heating resistances
resistances
electric
heating
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)
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.)
HEURTEY ET CIE
Original Assignee
HEURTEY ET CIE
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 HEURTEY ET CIE filed Critical HEURTEY ET CIE
Application granted granted Critical
Publication of FR980720A publication Critical patent/FR980720A/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
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof
    • 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
    • C21D1/34—Methods of heating
    • C21D1/40—Direct resistance heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
    • F27D7/04—Circulating atmospheres by mechanical means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
FR980720D 1943-02-11 1943-02-11 Improvements to electric heating resistances Expired FR980720A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR980720T 1943-02-11

Publications (1)

Publication Number Publication Date
FR980720A true FR980720A (en) 1951-05-17

Family

ID=9527154

Family Applications (1)

Application Number Title Priority Date Filing Date
FR980720D Expired FR980720A (en) 1943-02-11 1943-02-11 Improvements to electric heating resistances

Country Status (1)

Country Link
FR (1) FR980720A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438688A1 (en) * 1978-10-14 1980-05-09 Ipsen Ind Int Gmbh INDUSTRIAL OVEN FOR HEAT TREATMENT OF METAL PARTS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438688A1 (en) * 1978-10-14 1980-05-09 Ipsen Ind Int Gmbh INDUSTRIAL OVEN FOR HEAT TREATMENT OF METAL PARTS

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