Simbi mbiri dzisingasvibi, dzinozivikanwa nekubatanidza hunhu hwadzo hwe austenitic ne ferritic, dzinomira seuchapupu hwekushanduka kwe simbi, dzichipa kubatana kwezvakanaka uku dzichideredza matambudziko aripo, kazhinji pamutengo unokwikwidzana.
Kunzwisisa Duplex Stainless Steel:
Chinhu chikuru muhukuru hwesimbi isina tsvina mbiri (duplex stainless steel) imhando yayo ine zvikamu zviviri (dual-phase microstructure), inowanzova nemusanganiswa wakaenzana we austenite ne ferrite, zvichiita kuti pave nekubatana kwehunhu hwakanaka ukuwo zvichideredza kushaya simba. Kuumbwa kwesimbi, kunyangwe zvichienderana nerudzi rwayo, kunowanzo sanganisira kabhoni, manganese, silicon, chromium, nickel, phosphorus, uye sulfur, pamwe nezvimwe zvinhu zvakaita se molybdenum, nitrogen, uye copper zvinowedzera kunatsiridza hunhu hwechinhu chacho.
Nhoroondo yeDuplex Stainless Steel:
Kuumbwa kwe duplex stainless alloys kunodzokera kumashure kupfungwa dzepfungwa muma1920, zvichiguma nemabasa ekugadzira zvinhu zvinobatika muma1930. Pakutanga zvaingoshandiswa chete mukugadzira zvinhu zvakakandwa uye kushandiswa kwakakosha nekuda kwehuwandu hwekabhoni hwakakwira, kufambira mberi mukubvisa kabhoni pakupera kwema1960 kwakaratidza nguva itsva, zvichiita kuti kuve nyore kugadzira alloys dzisina kabhoni dzakanyanya ne chromium ne nickel, nokudaro zvichinatsa kuenzana pakati pe ferrite ne austenite. Chiratidzo cheiyi nzira yekushanduka-shanduka iDuplex 2205, alloy yekutanga kubva pakati pema1970 inoramba ichikosha nekuda kwekudzivirira kwayo ngura zvakanyanya kana tichienzanisa ne austenitic grades.
Mabhenefiti eSimbi Isina Kugadzirwa neDuplex:
Kunyangwe iri chikamu chidiki chemusika wesimbi isingatsvi, ma duplex alloys ane zvakawanda zvakanaka kana tichienzanisa neaustenitic neferritic zvechinyakare. Pakati pezvakanakira izvi simba rakawedzerwa, kuomarara kwakanyanya, uye ductility, nekudzivirira ngura kuchibuda sechiratidzo, kuchikwikwidzana, kana kusiri kupfuura, ma austenitic grades. Uyezve, kushanda zvakanaka kuri mu duplex steel, nekuda kwekushandiswa kwakanaka kwezvinhu zvinosanganisa, kunoita kuti ive sarudzo inokwezva pakushandisa kwakasiyana-siyana.
Mashandisirwo eDuplex Stainless Steel:
Kushanda nesimba kwesimbi isina tsvina yemhando mbiri (duplex stainless steel) kunowanikwa mumaindasitiri akasiyana-siyana, nekuda kwekudzivirira kwayo ngura, simba rayo rakawedzerwa, uye kusashandisa mari yakawanda. Zvikurukuru, mabasa ekunze nekunze kwegungwa, anosanganisira kuchera mafuta, kubvisa munyu, uye kurapwa kwemvura, ndiwo anonyanya kubatsirwa nehunyanzvi hwesimbi iyi. Saizvozvowo, kushandiswa kwayo kunosvika pakugadzira makemikari, kushandiswa kwemvura, michina yekudzora kusvibiswa, uye mabasa ekuvaka, zvichiratidza kuvapo kwayo kwese kwese munzvimbo dzemaindasitiri dzemazuva ano.
Nguva yekutumira: Chivabvu-07-2024