FR836819A - Perfectionnements relatifs au durcissement en surface des métaux - Google Patents

Perfectionnements relatifs au durcissement en surface des métaux

Info

Publication number
FR836819A
FR836819A FR836819DA FR836819A FR 836819 A FR836819 A FR 836819A FR 836819D A FR836819D A FR 836819DA FR 836819 A FR836819 A FR 836819A
Authority
FR
France
Prior art keywords
metals
improvements relating
surface hardening
hardening
relating
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
English (en)
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.)
Ohio Crankshaft Co
Original Assignee
Ohio Crankshaft 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 Ohio Crankshaft Co filed Critical Ohio Crankshaft Co
Application granted granted Critical
Publication of FR836819A publication Critical patent/FR836819A/fr
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
    • 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
    • C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment

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)
FR836819D 1938-04-16 1938-04-16 Perfectionnements relatifs au durcissement en surface des métaux Expired FR836819A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR836819T 1938-04-16

Publications (1)

Publication Number Publication Date
FR836819A true FR836819A (fr) 1939-01-26

Family

ID=9298293

Family Applications (1)

Application Number Title Priority Date Filing Date
FR836819D Expired FR836819A (fr) 1938-04-16 1938-04-16 Perfectionnements relatifs au durcissement en surface des métaux

Country Status (1)

Country Link
FR (1) FR836819A (fr)

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