Sisebenzisa amakhukhi ukuthuthukisa ulwazi lwakho. Ngokuqhubeka uphequlula le sayithi uyavuma ukusebenzisa kwethu amakhukhi. Ulwazi olwengeziwe.
IsingenisoIzakhiwo EziyinhlokoUkwakhekaIzakhiwo ZomshiniIzakhiwo EzibonakalayoImininingwane YebangaAmazinga AngaqhathaniswayoAmathuba AhlukileUkumelana NokugqwalaUkwelashwa KokushisaUkushisaUkwelulelaUkuqedaIzicelo
Fe, <0.3% C, 10.5-12.5% ​​Cr, 0.3-1.0% Ni, <1.5% Mn, <1.0% Si, <0.4% P, <0.15% S, <0.03% N
Insimbi engagqwali yebanga lesi-3CR12 iyizinga eliphansi le-chromium equkethe insimbi engagqwali eyenziwe ngokushintsha izakhiwo zensimbi yebanga lesi-409. Imelana nokugqwala okuncane kanye nokuguguleka okumanzi. Ekuqaleni yasungulwa yiColumbus Stainless Company ngaphansi kophawu lokuhweba olubhalisiwe oluthi “3CR12”. Amanye amagama aleli banga afaka phakathi i-UNS S40977/S41003 kanye ne-1.4003.
Ezinye izikhundla ezilingana namabanga angu-3CR12 zifaka phakathi amamaki e-ASME SA240, amamaki e-ASTM A240/A240M, kanye ne-EN 10088.2. Kodwa-ke, i-EN 10028.7 iphinde ihlanganise isigaba 1.4003, esakha insimbi engagqwali ngenhloso yokucindezela.
Izigaba ezilandelayo zizohlinzeka ngezakhiwo ezibalulekile zekhoyili yensimbi engagqwali yebanga le-3CR12, ishidi kanye nepuleti ngokuhambisana ne-Euronorm S41003, S40977, ASTM A240/A240M kanye ne-EN 10088.2 1.4003.
Lokhu okungenhla kumane nje kuyiziqhathaniso ezingacacile. Leli thebula lihloselwe ukunikeza ukuqhathanisa kwezinto ezifanayo ngokusebenza, futhi izincazelo azisemthethweni. Izincazelo zokuqala zingaqinisekiswa uma kudingeka izinto ezilinganayo eziqondile.
Insimbi engagqwali ye-Grade 3CR12 ingasetshenziswa ezinhlotsheni lapho i-aluminium, i-galvanized noma i-carbon steel inikeza imiphumela emibi ngenxa yokumelana kwayo nama-asidi aqinile nezisekelo, kanye nokuqhekeka okubangelwa ukugqwala kokucindezeleka kwe-chloride. Kodwa-ke, ngokungafani ne-Grade 304, i-Grade 3CR12 inokumelana okuphansi kakhulu nokugqwala kwemigodi lapho kukhona ama-chloride.
Ngaphansi kwezimo ezizungezile, ibanga le-3CR12 lithuthukise ukubekezelela amanzi nama-chloride, njengoba ukugqwala kokuqukethwe kwe-chloride kuncishiswa ama-ion e-nitrate ne-sulfate. Enye yezinto ezimbi kakhulu zebanga le-3CR12 ukuthi ubuso bezinto bugqwala kancane uma buvezwa kunoma yiluphi uhlobo lwendawo. Yingakho izinto zikhawulelwe ekusetshenzisweni kokuhlobisa.
Insimbi engagqwali yebanga le-3CR12 ibonisa ukumelana nokungcola okuphakathi kuka-600 no-750°C lapho kukhona umoya kanye naphakathi kuka-450 no-600°C endaweni ecindezelekile. Izinto ziyaqina uma zichayeka isikhathi eside emazingeni okushisa aphakathi kuka-450 no-550°C. Kodwa-ke, izinto azilahlekelwa ukumelana kwazo nokushayisana kuleli banga lokushisa.
Insimbi engagqwali yebanga lesi-3CR12 ifakwa ku-700 kuya ku-750°C, ihlukaniswe ngezigaba ezingama-25mm, ingxenye ngayinye imanziswe amahora angu-1.5. Bese uvumela izinto ziphole. Kufanele kuqashelwe ukuvimbela ukuqina ngesikhathi sokwelashwa ngokushisa. Izakhiwo zemishini kanye nokumelana nokugqwala kwaleli banga kuthinteka ukwelashwa kokucima.
Izindlela zokushisela ezisetshenziswa ezinsimbini ezingagqwali ze-austenitic zingasetshenziswa ezinsimbini ezingagqwali zebanga lesi-3CR12. Cabanga ngobuchwepheshe bokufaka ukushisa okuphansi njenge-GMAW (MIG) kanye ne-GTAW (TIG). Ekushiseleni, ucingo lokugcwalisa lwebanga lesi-309 oluqinisekiswe kusengaphambili ku-AS 1554.6 luyathandwa. Kodwa-ke, izinhlobo zezintambo ezingama-308L, 316L, 309Mo kanye ne-309L nazo ziyasetshenziswa ezimweni eziningi. Noma yikuphi ukushintsha kombala kumkhiqizo oshisiwe kungasuswa kusetshenziswa igesi yokusekela noma amasu afana nokuhlanza nokukhuhla.
Ukukwazi ukusebenza kwensimbi engagqwali yebanga le-3CR12 cishe kungama-60% kunensimbi ethambile. Izinga lokuqina komsebenzi wabo liphansi kunelensimbi ze-austenitic, ngakho-ke azikho izindlela ezikhethekile zomshini ezidingekayo.
Amashidi ensimbi engagqwali ebanga le-3CR12 atholakala ngesiphetho esijwayelekile se-Hot Rolled Annealed and Pickled (HRAP), kanti ama-coil atholakala ngesiphetho se-2B noma se-2D. Iziphetho ezimnyama nazo zingakhiqizwa ngezinto ezigoqiwe ezishisayo, zishiye indawo emnyama ehlanganisiwe ensimbini. Isiphetho esimnyama sebanga le-3CR12 sinokumelana okuhle nokugqwala kanye nokungqubuzana okuphansi, ngakho-ke kufanelekile ezinhlotsheni ezahlukene zokuguguleka.
Sawubona Richard, ngiyajabula ukukunikeza noma yiliphi inani le-3Cr12. Sihlinzeka ngezinto ezingaphansi kophawu lweCromgard C12. Ngicela ungishayele ucingo ku-719-597-2423. Jane Robinson.
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Lesi sihloko sinikeza ukuhlolwa kokuphela kokuphila kwamabhethri e-lithium-ion, kugxilwe ekusetshenzisweni kabusha inani elikhulayo lamabhethri e-lithium-ion asetshenzisiwe ukuze kuvunyelwe izindlela eziqhubekayo nezijikelezayo zokusetshenziswa nokusetshenziswa kabusha kwebhethri.
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