Super Stainless Steel ndi ma alloys opangidwa ndi nickel ndi mitundu yapadera yachitsulo chosapanga dzimbiri.Choyamba, zimasiyana ndi zitsulo zosapanga dzimbiri wamba.Amatanthauza zitsulo zosapanga dzimbiri zosapanga dzimbiri zomwe zimakhala ndi faifi wokwera, chromium yayikulu, molybdenum yayikulu.
Malinga ndi mawonekedwe a microstructure azitsulo zosapanga dzimbiri, chitsulo chosapanga dzimbiri chimagawika kukhala chitsulo chosapanga dzimbiri cha ferritic, chitsulo chosapanga dzimbiri cha austenitic, chitsulo chosapanga dzimbiri cha martensitic, chitsulo chosapanga dzimbiri cha duplex ndi mitundu ina.
Super austenitic chitsulo chosapanga dzimbiri
Pamaziko a wamba austenitic zitsulo zosapanga dzimbiri, kuwongolera chiyero cha aloyi, kuonjezera chiwerengero cha zinthu zothandiza, kuchepetsa zili C, kuteteza mpweya wa Cr23C6 chifukwa cha dzimbiri intergranular, kupeza zabwino makina katundu, ndondomeko katundu ndi kukana dzimbiri m'deralo. , m'malo mwa Ti zitsulo zosapanga dzimbiri.
Super ferritic chitsulo chosapanga dzimbiri
Imatengera kulimba kwamphamvu, kukana kwa okosijeni wabwino komanso kukana kwamphamvu kwa dzimbiri kwachitsulo chosapanga dzimbiri cha ferritic.Pa nthawi yomweyo, izo bwino malire a ferrite zitsulo zosapanga dzimbiri mu kuwotcherera boma Chimaona kusintha, tcheru intergranular dzimbiri ndi otsika kulimba.Chitsulo chosapanga dzimbiri cha Ultra-ferritic chokhala ndi Cr, Mo ndi Ultra low C ndi N chikhoza kupezeka poyenga ukadaulo, kuchepetsa zomwe zili mu C ndi N, kuwonjezera kukhazikika ndi kuwotcherera zitsulo zolimba.Kugwiritsa ntchito chitsulo chosapanga dzimbiri cha ferritic pokana dzimbiri ndi kukana kwa chloride corrosion kwalowa gawo latsopano.
Super duplex chitsulo chosapanga dzimbiri
Chitsulochi chinapangidwa kumapeto kwa zaka za m'ma 1980.Mitundu yayikulu ndi SAF2507, UR52N, Zeron100, ndi zina zambiri, zomwe zimadziwika ndi zotsika za C, zomwe zili ndi Mo komanso kuchuluka kwa N.Gawo la ferritic muzinthu zachitsulo ndi 40% ~ 45%., yokhala ndi kukana kwambiri kwa dzimbiri.
Super martensitic chitsulo chosapanga dzimbiri
Ndi chitsulo chosapanga dzimbiri chosasunthika chokhala ndi kuuma kwakukulu, mphamvu ndi kukana kuvala, koma kulimba kosalimba ndi kutenthedwa.Chitsulo chosapanga dzimbiri cha martensitic sichikhala ndi ductility chokwanira, chimakhudzidwa kwambiri ndi kupsinjika chikapunduka, ndipo chimakhala chovuta kupanga pogwira ntchito yozizira.Pochepetsa kuchuluka kwa kaboni ndikuwonjezera nickel, super martensitic zitsulo zosapanga dzimbiri zitha kupezeka.M'zaka zaposachedwa, mayiko ayika ndalama zambiri pakupanga chitsulo chochepa cha carbon ndi nitrogen low super martensitic chitsulo, ndikupanga gulu lachitsulo cha super martensitic pazifukwa zosiyanasiyana.Chitsulo cha Super martensitic chakhala chikugwiritsidwa ntchito kwambiri pakugwiritsa ntchito mafuta ndi gasi, kusungirako ndi zida zoyendera, mphamvu yamadzi, mafakitale amafuta, zida zopangira zamkati zotentha kwambiri ndi magawo ena.
Chitsulo chosapanga dzimbiri chogwira ntchito
Ndi kusintha kwa kufunikira kwa msika, zitsulo zosiyanasiyana zosapanga dzimbiri zomwe zimagwiritsidwa ntchito mwapadera ndi ntchito zapadera zikupitiriza kuonekera.Monga mankhwala atsopano faifi tambala free austenitic zosapanga dzimbiri chuma makamaka Cr-Ni austenitic zosapanga dzimbiri zitsulo, ali biocompatibility wabwino, munali Ni 13% ~ 15%.Nickel ndi mtundu wa sensitizing factor, yomwe ndi teratogenic ndi carcinogenic kwa zamoyo.Kugwiritsa ntchito kwanthawi yayitali chitsulo chosapanga dzimbiri chokhala ndi faifi tambala kumawononga pang'onopang'ono ndikutulutsa ma Ni ions.Ma Ni ions akalemeretsedwa mu minyewa pafupi ndi kuyikidwa, zowopsa zimatha kupangika ndipo zoyipa monga kuwonongeka kwa ma cell ndi kutupa zimatha kuchitika.Cr-Mn-N Medical nickel-free austenitic stainless steel stainless steel yopangidwa ndi Institute of Metal Research, Chinese Academy of Sciences yayesedwa ngati biocompatibility, ndipo ntchito yake ndi yabwino kuposa ya Cr-Ni austenitic zitsulo zosapanga dzimbiri pazachipatala.Chitsanzo china ndi antibacterial stainless steel.Ndi kusintha kwa moyo wa anthu, anthu amasamalira kwambiri chilengedwe ndi thanzi lawo, zomwe zimalimbikitsa kufufuza ndi chitukuko cha zipangizo zowononga antibacterial.Kuyambira 1980, mayiko otukuka omwe akuimiridwa ndi Japan adayamba kuphunzira ndikugwiritsa ntchito zida za antibacterial mu zida zapakhomo, zonyamula chakudya, zofunikira zatsiku ndi tsiku, zida zosambira ndi zina.Nissin Steel ndi Kawasaki Steel adapanga zitsulo zosapanga dzimbiri zosapanga dzimbiri zokhala ndi cu ndi ag, motsatana.Copper antibacterial zitsulo zosapanga dzimbiri zimawonjezeredwa muzitsulo zosapanga dzimbiri 0.5% ~ 1.0% zamkuwa, pambuyo pa chithandizo chapadera cha kutentha, kotero kuti chitsulo chosapanga dzimbiri kuchokera pamwamba mpaka mkati mwa yunifolomu.Kumwaza madzi a ε-Cu kumagwira ntchito yolimbana ndi mabakiteriya.Mkuwa uwu wokhala ndi chitsulo chosapanga dzimbiri chotsutsana ndi mabakiteriya ndi woyenera pazinthu zosiyanasiyana monga zitsulo zopangira zitsulo, komanso zinthu zina zomwe zimakhala ndi zofunikira kwambiri pokonza katundu ndi antibacterial properties.
Nthawi yotumiza: Feb-16-2023