FR791773A - Process for hardening the surface of metal parts - Google Patents

Process for hardening the surface of metal parts

Info

Publication number
FR791773A
FR791773A FR791773DA FR791773A FR 791773 A FR791773 A FR 791773A FR 791773D A FR791773D A FR 791773DA FR 791773 A FR791773 A FR 791773A
Authority
FR
France
Prior art keywords
hardening
metal parts
metal
parts
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.)
Firma Paul Ferd Peddinghaus
Original Assignee
Firma Paul Ferd Peddinghaus
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 Firma Paul Ferd Peddinghaus filed Critical Firma Paul Ferd Peddinghaus
Application granted granted Critical
Publication of FR791773A publication Critical patent/FR791773A/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)
FR791773D 1934-06-30 1935-06-27 Process for hardening the surface of metal parts Expired FR791773A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE791773X 1934-06-30

Publications (1)

Publication Number Publication Date
FR791773A true FR791773A (en) 1935-12-17

Family

ID=6705063

Family Applications (1)

Application Number Title Priority Date Filing Date
FR791773D Expired FR791773A (en) 1934-06-30 1935-06-27 Process for hardening the surface of metal parts

Country Status (1)

Country Link
FR (1) FR791773A (en)

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