NON-HEATTREATED STEEL FOR HOT FORGING EASILY SEPARABLE BY FRACTURE

PROBLEM TO BE SOLVED: To provide non-heatteated steel for hot forging which is satisfactorily fractured when fractured at a notch as a starting point by working using a heat source in a technique for producing parts by separating the connecting rod of an automobile engine by fracture, and can obtain...

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Hauptverfasser:	OKADA YOSHIO, NAKAMURA SADAYUKI, SATO HIDETOSHI, OTAKA HIDEAKI, NAITO UMI, ITAKURA KOJI, YOSHIDA JUN, INOUE KOICHIRO, SHIAKU NORIYUKI, MIYAZAWA TOMONORI
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS BEARINGS BLASTING CHEMISTRY ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FERROUS OR NON-FERROUS ALLOYS FLEXIBLE SHAFTS FORGE FURNACES FORGING GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HAMMERING HEATING LIGHTING MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL ENGINEERING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PRESSING METAL PUNCHING METAL RIVETING ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS
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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide non-heatteated steel for hot forging which is satisfactorily fractured when fractured at a notch as a starting point by working using a heat source in a technique for producing parts by separating the connecting rod of an automobile engine by fracture, and can obtain a tightly adhesive fractured face substantially having no plastic deformation. SOLUTION: The steel has a composition containing, by weight, 0.3 to 0.8% C, 0.1 to 2.0% Si, 0.3 to 1.5% Mn, 0.01 to 0.15% P, 0 to 1.0% Cr, =50%. One or more kinds selected from Pb, S, Ca and Bi can be added to the steel for increasing its machinability.