Chitsulo chosapanga dzimbiri cha Duplex

Duplex chitsulo chosapanga dzimbiri kalasi 2205 (yomwe imadziwikanso kuti UNS S31803/S32205, ASTM A240 Type 2205, Inox 2205, AISI 318LN, SUS 329J3L, kapena EN 1.4462) ndi magawo awiri (fertic 2-2) alloayteni chromium, 2.5-3.5% molybdenum, 4.5-6.5% faifi tambala, ndipo pafupifupi 0.15% nayitrogeni. Microstructure yake yokhazikika imapereka kuphatikiza kwapadera kwamphamvu kwambiri komanso kukana kwa dzimbiri. Mwachitsanzo, giredi 2205 nthawi zambiri imakhala ndi kuwirikiza kawiri mphamvu zokolola za 316L zitsulo zosapanga dzimbiri, zomwe zimalola opanga kugwiritsa ntchito zigawo zoonda kwambiri, zopepuka popanda kudzipereka.

Aloyi nthawi zambiri imaperekedwa mu njira yothetsera yankho (pa ASTM A240/A240M) kuti isunge mawonekedwe abwino a duplex. Kalasi 2205 imakhalabe yolimba kuchokera ku kutentha kwa cryogenic (kuzungulira -50 ° C) mpaka pafupifupi +300 ° C; kupitilira izi, gawo la brittle sigma limatha kupanga ma welds. Katunduwa amapanga duplex 2205 kukhala chisankho chabwino kwambiri pakugwiritsa ntchito movutikira monga kukonza mankhwala, mafuta am'mphepete mwa nyanja & gasi, ndi malo am'madzi momwe mphamvu zonse komanso kukana dzimbiri kwa chloride zimafunikira.