NON-OXIDATION HARDENING METHOD FOR STRIP BY ORGANIC ACID

PURPOSE:To make hardening of a strip after heating and soaking possible in a non-oxidizing state by hardening said strip in a soln. org. contg. acids and satisfying the specific relations among the temp. of the strip after the hardening, the temp. of the soln. and the concn. of the org. acids. CONST...

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Bibliographische Detailangaben
Hauptverfasser:	JITSUKAWA MASAHARU, KUWAMOTO HIROSHI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
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Beschreibung
Zusammenfassung:	PURPOSE:To make hardening of a strip after heating and soaking possible in a non-oxidizing state by hardening said strip in a soln. org. contg. acids and satisfying the specific relations among the temp. of the strip after the hardening, the temp. of the soln. and the concn. of the org. acids. CONSTITUTION:A strip which is in a 500-900 deg.C temp. range after heating and soaking is hardened in a soln. contg, org. acids. At this time, the strip is so hardened that the temp. T deg.C of the strip after the hardening and cooling, the temp. t deg.C of the soln. and the concn. C% of org. acids satisfy the relations of the equationI(10 deg.C