Intsimbi ephindwe kabini ibhekisa kusapho lweentsimbi ezingenakutyiwa ezinesakhiwo esincinci esinezigaba ezimbini esiquka zombini izigaba ze-austenitic (isakhiwo sekristale ye-cubic ephakathi kobuso) kunye nezigaba ze-ferritic (isakhiwo sekristale ye-cubic ephakathi komzimba). Esi sakhiwo sinezigaba ezimbini sifezekiswa ngokwakhiwa kwe-alloy ethile equka izinto ezifana ne-chromium, i-nickel, i-molybdenum, kunye ne-nitrogen.
Iintsimbi ze-duplex stainless steels eziqhelekileyo zeze-UNS S3XXX series, apho u-“S” emele i-stainless steels, kwaye amanani abonisa izinto ezithile ze-alloy. Isakhiwo se-microstructure esinezigaba ezimbini sinikezela ngokudibanisa iipropati ezinqwenelekayo, okwenza intsimbi ye-duplex ifaneleke kwiintlobo ngeentlobo zezicelo. Ezinye zeempawu eziphambili zentsimbi ye-duplex ziquka:
1. Ukumelana Nokugqwala: Intsimbi ye-duplex inika ukumelana okuhle nokugqwala, ingakumbi kwiindawo ezinzima ezinee-chloride. Oku kuyenza ifaneleke ukusetyenziswa ekucutshungulweni kweekhemikhali, ioyile negesi, kunye nokusetyenziswa kolwandle.
2. Amandla Aphezulu: Xa kuthelekiswa neentsimbi ezingenasici ze-austenitic, intsimbi ye-duplex inamandla aphezulu, nto leyo eyenza ukuba ifaneleke ukusetyenziswa apho kufuneka amandla oomatshini anyukileyo.
3. Ukuqina Okulungileyo Nokuguquguquka: Intsimbi ye-Duplex igcina ukuqina okuhle nokuguquguquka, nokuba kumaqondo obushushu aphantsi. Olu didi lweempawu lubalulekile xa kusetyenziswa izinto ezinokuthi zithwalwe yimithwalo kunye namaqondo obushushu ahlukeneyo.
4. Ukumelana nokuqhekeka koxinzelelo: Intsimbi ye-duplex ibonakalisa ukumelana okuhle nokuqhekeka koxinzelelo, uhlobo lokuqhekeka olunokwenzeka phantsi kwempembelelo edibeneyo yoxinzelelo lokuxinana kunye nendawo enobungozi.
5. Ixabiso Eliphantsi: Nangona intsimbi ye-duplex inokubiza kakhulu kunentsimbi yesiqhelo ye-austenitic stainless, iimpawu zayo zokusebenza zihlala zithethelela iindleko, ingakumbi xa kusetyenziswe apho ukumelana nokugqwala kunye namandla kubalulekile.
Amanqanaba e-duplex aqhelekileyo ensimbi engenasici aqukai-duplex 2205 (UNS S32205)kunye ne-duplex 2507 (UNS S32750). La manqanaba asetyenziswa kakhulu kumashishini afana nokucubungula iikhemikhali, ukuhlola ioyile negesi, ubunjineli baselwandle nolwandle, kunye nokuvelisa i-pulp nephepha.
Ixesha lokuthumela: Novemba-27-2023