Impendulo iwukuthi izinga316 insimbi engagqwaliungcono kune304 insimbi engagqwali, ngoba insimbi engagqwali engu-316 ihlanganiswe ne-molybdenum yensimbi ngesisekelo se-304, lesi sici singahlanganisa ukwakheka kwamangqamuzana ensimbi engagqwali, kwenze kube ukumelana nokuguga kanye ne-anti-oxidation, futhi ngasikhathi sinye, ukumelana nokugqwala nakho landa kakhulu.Ake sibheke 304 insimbi engagqwali kanye 316 insimbi engagqwali okuyinto enhle.Izinhlobo ezisetshenziswa kakhulu zensimbi engagqwali ziyi-304 kanye ne-316. Uhlelo lokuphatha lokugreda olusetshenziswa ukuhlukanisa lezi zinhlobo ezimbili zensimbi luvela ikakhulukazi ohlelweni lolwazi lwezinombolo olwaqalwa yi-American Iron and Steel Association of China (AISI), enye yezindala. imizamo yezinyunyana kuze kube manje ibuyela emuva ku-1855. Lezi zigaba zibonisa ukwakheka kwazo, futhi iningi lama-200 - kanye ne-300-grade steels stainless zibhekwa njenge-austenitic.Inqubo ye-austenitizing ihlanganisa ukushisisa i-iron, i-ferroalloy, noma insimbi kuze kube yilapho isakhiwo sayo sekristalu sishintsha sisuka ku-ferrite siye ku-austenite.Nakuba kunzima ukuhlukanisa lezi zinto ezimbili ngeso lenyama, izakhiwo zomkhiqizo eziyingqayizivele phakathi kuka-304 no-316 wezinkampani zensimbi engagqwali zingazenza zibe phezulu kwezinye izinhlelo zokusebenza zobuchwepheshe.
Kusukela ekuthuthukisweni kokukhiqizwa kwamaShayina ekhulwini lama-20, izinkampani zensimbi engagqwali seziphenduke izinto ezibalulekile ezinethonya kumaphrojekthi amaningi eChina ngenxa yokuqina kwazo, ukusebenza okuphezulu kwemishini, ukushisela nokuvumelana nezimo.Iqukethe amaphesenti amaningana ahlukene ezinto anesibopho samazinga ahlukene aziwayo njengamanje.Ibanga ngalinye linezakhiwo zalo ezihlukile, futhi ukuqhathanisa phakathi kwamabanga amabili, njengokungaphelelwa yisikhathi njengokwenziwa kwawo, kuyinsimbi engagqwali engu-304 no-316.
Yikuphi okungcono, 304 noma 316 insimbi engagqwali
Uma ubheka izinhlobo ezimbili zensimbi, ziyefana ngokubukeka kanye nokwakheka kwamakhemikhali.Zombili zinikeza isivikelo esihle kakhulu ekugqwaleni nasekugqwaleni, kuyilapho zinikeza ukuqina okwengeziwe.Uma uqhathanisa i-304 ne-316 yensimbi engagqwali, izindleko eziphakeme kakhulu zale zakamuva zingabalelwa ekuphikisweni kwayo okungcono kakhulu kokugqwala.Ngenxa yalo mehluko wamanani kanye nendawo elinganiselwe evumelana nensimbi engu-316, insimbi engu-304 iyinsimbi engagqwali ye-austenitic esetshenziswa kakhulu.
I-Grade 316 insimbi engagqwali ibiza kakhulu ngenxa yokumelana nokugqwala okungcono.Ezisetshenziswa lapho ama-alloys echayeke ezixazululweni ezine-chlorine nama-chloride (okuhlanganisa namanzi olwandle aseShayina), kunconywa kakhulu ukuthi isistimu isetshenziswe ngale ngxube enamabanga ekhwalithi ephezulu.Ingase isetshenziselwe ukunweba impilo yenethiwekhi yesevisi yezingxenye noma okokusebenza okuchayeka kancane kancane ezimeni zemvelo ezinzima nezibi kakhulu, ikakhulukazi ezimeni ezibandakanya ukuchayeka kusawoti okuyinkinga.Nokho, ileveli 304 iwusizo kakhulu izicelo eziningi.Kafushane, uma ubheka izinsimbi ezingenasici ezingama-304 nezingu-316, ngezinhlelo zokusebenza ezidinga ukugqwala okuhle kakhulu noma ukumelana namanzi, sebenzisa izinsimbi ezingama-316 ezingenasici.Kwezinye izinhlelo zokusebenza, insimbi engagqwali engu-304 nayo yenziwa ubunjiniyela.Sekukonke, i-304 ne-316 amakhodi ensimbi engagqwali, empeleni, akukho mehluko phakathi kwawo yinsimbi engagqwali, ihlukaniswe ngokwezinhlobo ezahlukene.Kalula nje, ikhwalithi yensimbi engagqwali engu-316 inkulu kunensimbi engagqwali engama-304, insimbi engagqwali engama-316 ngesisekelo sika-304 ku-molybdenum yensimbi, le nto ingahlanganisa ukwakheka kwamangqamuzana ensimbi engagqwali, ikwenze kube ukumelana nokuguga kanye ne-oxidation, at ngesikhathi esifanayo, ukumelana nokugqwala nakho kwanda kakhulu.
Imikhiqizo ehlobene
Isikhathi sokuthumela: Sep-19-2023