AXIALLY SYMMETRICAL VESSELS PRODUCING METHOD

FIELD: plastic metal working, namely manufacture of axially symmetrical pressure vessels. ^ SUBSTANCE: method comprises steps of quenching, tempering, cold plastic deformation by rotary drawing for two passes, low-temperature annealing; using constructional complex-alloy steel and realizing quenchin...

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Hauptverfasser:	KUKSENKO ALEKSANDR FEDOROVICH, BELOV EVGENIJ ANDREEVICH, KOBYLIN RUDOL'F ANATOL'EVICH, KOROL'KOV VIKTOR ALEKSEEVICH, MAKAROVETS NIKOLAJ ALEKSANDROVICH, TREGUBOV VIKTOR IVANOVICH
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CHEMISTRY GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	FIELD: plastic metal working, namely manufacture of axially symmetrical pressure vessels. ^ SUBSTANCE: method comprises steps of quenching, tempering, cold plastic deformation by rotary drawing for two passes, low-temperature annealing; using constructional complex-alloy steel and realizing quenching step from temperature 910 - 950°C at cooling in water or in air; tempering at temperature 560 - 580°C for obtaining sorbite structure. Drawing is realized without intermediate annealing with total deformation degree 70 - 80% at strengthening 1.5 - 2.5 MPa for each percent of deformation. ^ EFFECT: improved quality of vessels, lowered labor consumption for making them. ^ 3 tbl, 2 ex