FR789132A - Method and device for tempering iron objects - Google Patents

Method and device for tempering iron objects

Info

Publication number
FR789132A
FR789132A FR789132DA FR789132A FR 789132 A FR789132 A FR 789132A FR 789132D A FR789132D A FR 789132DA FR 789132 A FR789132 A FR 789132A
Authority
FR
France
Prior art keywords
iron objects
tempering
tempering iron
objects
iron
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.)
Linde Air Products Co
Original Assignee
Linde Air Products Co
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 Linde Air Products Co filed Critical Linde Air Products Co
Application granted granted Critical
Publication of FR789132A publication Critical patent/FR789132A/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
    • C21D1/06—Surface hardening
    • C21D1/08—Surface hardening with flames

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)
FR789132D 1933-05-04 1934-05-04 Method and device for tempering iron objects Expired FR789132A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US789132XA 1933-05-04 1933-05-04

Publications (1)

Publication Number Publication Date
FR789132A true FR789132A (en) 1935-10-23

Family

ID=22146976

Family Applications (1)

Application Number Title Priority Date Filing Date
FR789132D Expired FR789132A (en) 1933-05-04 1934-05-04 Method and device for tempering iron objects

Country Status (1)

Country Link
FR (1) FR789132A (en)

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