FR836691A - Improvement in furnaces and device to offer gases varied routes in them - Google Patents

Improvement in furnaces and device to offer gases varied routes in them

Info

Publication number
FR836691A
FR836691A FR836691DA FR836691A FR 836691 A FR836691 A FR 836691A FR 836691D A FR836691D A FR 836691DA FR 836691 A FR836691 A FR 836691A
Authority
FR
France
Prior art keywords
furnaces
improvement
offer
varied routes
gases varied
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
James Mac Donald
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.)
G W B ELECTRIC FURNACES Ltd
Original Assignee
G W B ELECTRIC FURNACES Ltd
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 G W B ELECTRIC FURNACES Ltd filed Critical G W B ELECTRIC FURNACES Ltd
Application granted granted Critical
Publication of FR836691A publication Critical patent/FR836691A/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

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)
FR836691D 1937-04-15 1938-04-15 Improvement in furnaces and device to offer gases varied routes in them Expired FR836691A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB836691X 1937-04-15

Publications (1)

Publication Number Publication Date
FR836691A true FR836691A (en) 1939-01-24

Family

ID=10554240

Family Applications (1)

Application Number Title Priority Date Filing Date
FR836691D Expired FR836691A (en) 1937-04-15 1938-04-15 Improvement in furnaces and device to offer gases varied routes in them

Country Status (1)

Country Link
FR (1) FR836691A (en)

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