I-Duplex Steel engenacala (i-DSS) uhlobo lwensimbi engenacala equkethe izingxenye ezilinganayo ze-Ferrite ne-Ausunite, ngesigaba esincane ngokuvamile okwenza okungenani ama-30%. I-DSS Ngokuvamile inokuqukethwe kwe-chromium phakathi kwe-18% no-28% kanye nokuqukethwe kwe-nickel phakathi kuka-3% no-10%. Amanye ama-nsimbi angenalutho aqukethe futhi aqukethe izinto ezengeziwe ezifana ne-molybdenum (Mo), i-Copper (CU), i-niobium (nb), ne-nitrogen (n).
Lesi sigaba sensimbi sihlanganisa izici zensimbi ye-auntenitic ne-Ferritic engenasici. Uma kuqhathaniswa ne-Ferritic Steel engenasici, i-DSS ine-plastiki ephezulu nokuqina, iswele i-brittleness, futhi ikhombisa ukumelana nokuqina okuthuthukile kokugqwala kanye nokushiswa. Ngasikhathi sinye, igcina ubucwebe obungu-475 ° C kanye nokuvuselelwa okuphezulu okushisayo kwama-ferrititic steres ama-stainless futhi kukhombisa i-superlulamity. Uma kuqhathaniswa nama-auntenitic steress steress, i-DSS inamandla aphezulu nokuphikiswa okungcono kakhulu ekugqwalisweni kwengcindezi kwe-chloride. I-DSS ibuye ibe nokumelana nokukhohlakala okuphezulu kakhulu futhi ibhekwa njengensimbi esondela engagqwali.
Isakhiwo nezinhlobo
Ngenxa yesakhiwo sayo esisezingeni eliphakeme se-Autenite ne-Ferrite, ngesigaba ngasinye sibalwa yingxenye yesigamu, i-DSS ikhombisa izici zensimbi ye-auntenitic ne-Ferritic. Amandla okuvutha ama-DSS asuka ku-400 MPA aya ku-550 MPA, okuphindwe kabili kwensimbi evamile ye-autustonitic. I-DSS inobunzima obuphakeme, izinga lokushisa eliphansi le-brittle, futhi lithuthukise kakhulu ukumelana nokuqina kokugqwala kanye nokuthambeka kuqhathaniswa ne-Ferritic Steres. Iphinde igcine ezinye izakhiwo zensimbi ezingenasici, ezinjenge-475 ° C brittleness, ukuthuthuka okuphezulu okuphezulu, ukunwebeka okuphansi okukhohlisayo, nobunzima, nobude. Uma kuqhathaniswa nama-auntenitic steress steress, ama-DSS anamandla aphezulu, ikakhulukazi amandla okuthela, kanye nokuphikiswa okuthuthukile ekuphathweni, ekugqwalisweni kwengcindezelo nokukhathala kokugqwala.
I-DSS ingahlukaniswa ezinhlotsheni ezine ngokususelwa kukhemikhali yayo yamakhemikhali: CR18, CR23 (MO-Free), CR22, kanye CR25. Uhlobo lwe-CR25 lungaphinde luhlukaniswe ngensimbi ejwayelekile ne-Super Dumplex Stepless. Ezinye izinhlobo zezinhlobo ze-CR22 ne-CR25 zisetshenziswa kakhulu. E-China, iningi lama-DSS amabanga athathwa akhiqizwa eSweden, kufaka phakathi i-3re60 (CR18 TYPE), i-SAF2304 (TR23 TYPE), kanye ne-CR25 TYPE).
Izinhlobo zensimbi engenacala
1. Uhlobo lwe-Alloy Low-Alloy:Imelelwe yi-UNS S32304 (23cr-4NI-0.1N), le nsimbi ayinayo i-molybdenum futhi inenombolo yokumelana nokuphikiswa (pren) ka-24-25. Ingangena esikhundleni se-Aisi 304 noma i-316 ekusetshenzisweni kwe-Stression Corrication ukumelana nokuqina.
2. Uhlobo lwe-medium-alloy:Imelelwe yi-UNS S31803 (22CR-5NI-3MO-0.15N), nge-pren of 32-33. Ukumelana kwalo kokugqwala kuphakathi kwe-Aisi 316L kanye no-6% mo + n auntenitic tuenting steress.
3. Uhlobo oluphezulu lwe-alloy:Imvamisa iqukethe ama-25% Cr kanye ne-molybdenum ne-nitrogen, kwesinye isikhathi ithusi ne-tungsten. Imelelwe yi-UNS S32550 (25cr-6Ni-3mo-2cu-0cu-0
4. I-Super Dumplex Steel engenacala:Kunamazinga aphezulu we-molybdenum ne-nitrogen, emelelwa yi-UNS S32750 (25cr-7Ni-3.7mo-0.3n), ngesinye isikhathi aqukethe izimo zezinkomba ezinzima, ezihambisana ne-Supennitic Steel engenasisekelo.
Amamaki ensimbi engagqwali eChina
I-Chinese Chinese Standard GB / T 20878-2007 "Amamaki ensimbi angenasici kanye nokuvikelwa kokuvikelwa kokuvikelwa kwamakhemikhali" afaka amamaki amaningi ama-DSS, anjenge-14CR19NI1ALTI, 022CR19NI5NO3SI2ND. Ngokwengeziwe, i-Dumplex eyaziwayo engama-2205 Dumplex ihambelana nebanga lesiShayina 022crm23ni5mo3n.
Izici zensimbi engenacala
Ngenxa yesakhiwo sayo esisezingeni eliphansi, ngokulawula kahle ukwakheka kwamakhemikhali kanye nenqubo yokwelashwa kokushisa, i-DSS ihlanganisa izinzuzo zensimbi ye-Ferritic kanye ne-auntenitic yensimbi engenasici. Ithola ifa lobutha obuhle kakhulu kanye nokushiswa kwama-autenitic ama-autenitic ama-stainless ama-stainles kanye namandla aphezulu kanye nokuphikiswa kokugqwala kwe-chloride ukuqina kokugqwala kwensimbi engenasici. Lezi zindawo eziphakeme zenze ama-DSS asheshe akhule njengezinto ezisetshenziswayo zesakhiwo kusukela ngonyaka we-1980s, aqhathaniswa nensimbi engenacala. I-DSS inezimpawu ezilandelayo:
1. I-Chloride Stress Corimance Ukumelana:I-DSS equkethe i-molybdenum-equkethe ukumelana kahle nokugqwayiza kwengcindezi kwe-chloride emazingeni aphansi okucindezela. Ngenkathi ama-autenitic ensimbi engenacala athambekele ekuqhekekeni kokugqwayiza kwengcindezelo ngezixazululo ezingathathi hlangothi ngenhla kwama-60 ° C, i-DSS isebenza kahle ezindaweni ezinamanani ama-chlorides kanye ne-hydrogen sulfide, okwenza kube lula ukushintshaniswa okushisa nokuhwamuka.
2. Ukuphikisana nokukhulisa ukuqina:I-DSS inokuphikiswa okuhle kakhulu kokuqina kokuqina. Ngokumelana okufanayo kokuphamba okufanayo (Pre = CR% + 3.3mo% + 16n%), i-DSS kanye ne-Auuntenitic Steress Steress khombisa amandla afanayo okubucayi. Ukumelana nokugqwala kwe-DSS kanye ne-Crevice, ikakhulukazi ku-chromium ephezulu, izinhlobo eziqukethe ama-nitrogen, zidlula lelo lwe-Aisi 316l.
3. Ukukhathala kokugqwala nokugqoka ukuqina kokugqwala:I-DSS isebenza kahle ezindaweni ezithile ezilimazayo, okwenza ilungele amaphampu, ama-valve, neminye imishini yamandla.
4. Izakhiwo zemishini:I-DSS inamandla aphezulu kanye namandla okukhathala, anamandla okuvutha kabili angu-18-8 ama-autenitic steres angenasici. Esimweni esivelele sokulungiselela, ukugcwala kwalo kufinyelela ku-25%, futhi i-ak value yayo yobunzima (v-notch) idlula 100 j.
5. Ukuqwashisa:I-DSS inokuthamba okuhle nokuthambekela okushisayo okushisayo okuphansi. I-Preheating ngokuvamile ayidingeki ngaphambi kokushiswa, futhi ukwelashwa okushisa ngemuva kokushisa akudingekile, kuvumela ukufudumala ngensimbi engu-18-8 auntenitic steress noma ama-carbon sten.
6. Ukusebenza okushisayo:I-Low-Chromium (18% CR) DSS inebanga lokushisa elishisayo elishisayo kanye nokumelana okuphansi kunensimbi engu-18-8 auntenitic steringless steres, ukuvumela ukugibela okuqondile kube amapuleti ngaphandle kokulungiselela. I-High-Chromium (25% CR) DSS inselele kancane emsebenzini oshisayo kepha ingakhiqizwa ngamapuleti, amapayipi, kanye nezintambo.
7. Ukusebenza kubandayo:I-DSS ibonisa ukuthi umsebenzi omkhulu ukhuni ngesikhathi sokusebenza kubanda kunama-18-8 ama-auntenitic ama-stainless steres, edinga ukucindezelwa kokuqala okuphezulu kokushintshana ngesikhathi sokushintshana ngepayipi kanye nokwakha ipuleti.
8. Ukusebenza okushisayo nokwanda:I-DSS inokuvuka okuphezulu okushisayo kanye nama-coefficients aphansi aphansi aqhathaniswa nama-auntenitic stecing stecing, okwenza kufanelekile ukuthola imishini yokufaka kanye nokukhiqiza amapuleti ahlanganisiwe. Kuhle futhi nge-Heat Exchanger Tores Cores, ngokusebenza kahle kokushisa okushisa okuphezulu kunensimbi ye-autenitic engagqwali.
9. I-Brittleness:I-DSS igcina ukuthambekela kobucwebe kwe-High-Chritmium Ferritic Steel engenasici futhi ayifanelekile ukusetshenziswa emazingeni okushisa angaphezu kwama-300 ° C. Ukwehlisa okuqukethwe kwe-chromium ku-DSS, okuthambekele kancane kwezigaba ezinjengesigaba se-SIGMA.
I-Wovic Steel Production Izinzuzo
I-Wovic Steel ngumkhiqizi oholayo wensimbi engenacala, enikeza uhla oluphelele lwemikhiqizo kubandakanya amapayipi, amapuleti, imigoqo kanye nezintambo. Imikhiqizo yethu inamathela kumazinga amakhulu aphesheya futhi yi-ISO, CE, kanye ne-API eqinisekisiwe. Singakwazi ukwamukela ukuqondiswa komuntu wesithathu nokuhlolwa kokugcina, ukuqinisekisa ukuthi amazinga aphezulu kakhulu ahlangatshezwayo.
Imikhiqizo yensimbi engagqwali yensimbi engenacala yaziwa nge:
Izinto zokusetshenziswa ezisezingeni eliphakeme:Sisebenzisa kuphela izinto zokusetshenziswa ezinhle kakhulu zokuqinisekisa ukusebenza komkhiqizo ophakeme.
Amasu okukhiqiza athuthukile:Izikhungo zethu zokukhiqiza zombuso kanye nethimba elinolwazi lisenza sikwazi ukukhiqiza insimbi engenacala ngezingoma zamakhemikhali eziqondile nezakhiwo zemishini.
Izisombululo ezenziwe ngokwezifiso:Sinikeza amasayizi ahlukahlukene kanye nokucaciswa kokuhlangabezana nezidingo ezithile zamakhasimende ethu.
Ukulawulwa kwekhwalithi eqinile:Izinqubo zethu zokulawula ezisezingeni eliphakeme ziqinisekisa ukuthi wonke umkhiqizo uhlangabezana namazinga aphezulu obuhle kakhulu.
Finyelela Emhlabeni jikelele:Ngenethiwekhi yokuthumela okuqinile, izinsiza zensimbi ze-Wovic Dumplex Insimbi engenacala kumakhasimende emhlabeni jikelele, isekela izimboni ezahlukahlukene ngezinto ezithembekile neziphezulu zokusebenza.
Khetha insimbi ye-womec ye-duplex yensimbi engenasici futhi uhlangabezana nekhwalithi engenakuqhathaniswa nensizakalo esisehlukanisayo embonini.
Isikhathi sePosi: Jul-29-2024