Q345uhlobo lwensimbi ephansi ehlanganisiwe esetshenziswa kabanzi emabhulohweni, ezimotweni, emikhunjini, ezakhiweni, emikhunjini yokucindezela, imishini ekhethekile, njll., lapho u-"Q" esho amandla okukhiqiza, kanti u-345 usho ukuthi amandla okukhiqiza ale nsimbi angama-345MPa.
Ukuhlolwa kwensimbi ye-q345 kuhlanganisa kakhulu izici ezimbili: okokuqala, ukuthi okuqukethwe yi-element yensimbi kufinyelela ezingeni likazwelonke; okwesibili, ukuthi amandla okukhiqiza, ukuhlolwa kokudonsa, njll. kwensimbi kuyahlangabezana yini nezindinganiso ngezikhungo zobungcweti. Inokuqukethwe kwe-alloy okuhlukile kune-q235, okuyinsimbi yekhabhoni evamile kanti i-q345 iyinsimbi ye-alloy ephansi.
Ukuhlukaniswa kwezinto ze-Q345
I-Q345 ingahlukaniswa ibe yi-Q345A, Q345B, Q345C, Q345D kanye ne-Q345E ngokwezinga. Lokho abakumelelayo ngokuyinhloko ukuthi izinga lokushisa lomthelela lihlukile. Izinga le-Q345A, akukho mthelela; Izinga le-Q345B, umthelela wokushisa ojwayelekile wamadigri angu-20; Izinga le-Q345C, umthelela wedigri engu-0; Izinga le-Q345D, umthelela wedigri engu--20; Izinga le-Q345E, umthelela wedigri engu--40. Emazingeni okushisa ahlukene omthelela, amanani omthelela nawo ahlukile.
okuhlukile.
Ukusetshenziswa kwezinto ze-Q345
I-Q345 inezakhiwo ezinhle zomshini eziphelele, ukusebenza kahle kwezinga lokushisa eliphansi, i-plasticity enhle kanye nokushibilika. Isetshenziswa njengemikhumbi yokucindezela okuphakathi nendawo kanye nephansi, amathangi kawoyela, izimoto, ama-crane, imishini yezimayini, iziteshi zikagesi, amabhuloho nezinye izakhiwo, izingxenye zomshini, izakhiwo zokwakha, kanye nezakhiwo ezijwayelekile ezithwala imithwalo enamandla. Izingxenye zesakhiwo sensimbi, ezisetshenziswa ezimweni ezishisayo noma ezijwayelekile, zingasetshenziswa ezakhiweni ezahlukahlukene ezindaweni ezibandayo ezingaphansi kuka-40°C.