FR1197841A - Process for increasing the surface hardness of steel - Google Patents

Process for increasing the surface hardness of steel

Info

Publication number
FR1197841A
FR1197841A FR1197841DA FR1197841A FR 1197841 A FR1197841 A FR 1197841A FR 1197841D A FR1197841D A FR 1197841DA FR 1197841 A FR1197841 A FR 1197841A
Authority
FR
France
Prior art keywords
steel
increasing
surface hardness
hardness
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
Franz Lihl
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 filed Critical
Application granted granted Critical
Publication of FR1197841A publication Critical patent/FR1197841A/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
    • C21D1/04—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering with simultaneous application of supersonic waves, magnetic or electric fields
    • 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
FR1197841D 1957-01-12 1958-01-11 Process for increasing the surface hardness of steel Expired FR1197841A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1197841X 1957-01-12

Publications (1)

Publication Number Publication Date
FR1197841A true FR1197841A (en) 1959-12-03

Family

ID=4562523

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1197841D Expired FR1197841A (en) 1957-01-12 1958-01-11 Process for increasing the surface hardness of steel

Country Status (1)

Country Link
FR (1) FR1197841A (en)

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