Q345uhlobo lwensimbi ephansi ye-alloy esetshenziswa kakhulu kumabhuloho, izimoto, imikhumbi, izakhiwo, imikhumbi yokucindezela, imishini ekhethekile, njll., lapho "Q" isho amandla okukhiqiza, futhi i-345 isho ukuthi amandla okukhiqiza ale nsimbi angama-345MPa.
Ukuhlolwa kwensimbi ye-q345 ikakhulukazi kuhlanganisa izici ezimbili: okokuqala, ukuthi okuqukethwe kwensimbi kufinyelela ezingeni likazwelonke; okwesibili, kungakhathaliseki ukuthi amandla esivuno, ukuhlolwa kwe-tensile, njll. kwensimbi kuyahlangabezana nezindinganiso ngokusebenzisa izikhungo zobuchwepheshe. Inokuqukethwe kwe-alloy ehlukile kusuka ku-q235, okuyi-carbon steel evamile futhi i-q345 iyinsimbi ephansi ye-alloy.
Ukuhlukaniswa kwezinto ze-Q345
I-Q345 ingahlukaniswa nge-Q345A, Q345B, Q345C, Q345D kanye ne-Q345E ngokwebanga. Okumele ngokuyinhloko ukuthi izinga lokushisa lomthelela lihlukile. Izinga le-Q345A, akukho mthelela; Izinga le-Q345B, izinga lokushisa elingu-20 degree elivamile; Izinga le-Q345C, umthelela ongu-0 degree; Izinga le-Q345D, -20 degree umthelela; Izinga le-Q345E, -40 degree umthelela. Emazingeni okushisa omthelela ahlukene, amanani omthelela nawo ahlukile.
ezahlukene.
Ukusetshenziswa kwempahla ye-Q345
I-Q345 inezici ezinhle ezibanzi zemishini, ukusebenza okuphansi kwezinga lokushisa okwamukelekayo, ipulasitiki enhle kanye nokushisela. Isetshenziswa njengemikhumbi yokucindezela okuphakathi nendawo, amathangi kawoyela, izimoto, okhreyini, imishini yezimayini, iziteshi zamandla kagesi, amabhuloho nezinye izakhiwo, izingxenye zemishini, izakhiwo zokwakha, kanye nezakhiwo ezijwayelekile ezithwala imithwalo enamandla. Izingxenye zesakhiwo sensimbi, ezisetshenziswa ezimweni ezishisayo noma ezijwayelekile, zingasetshenziselwa izakhiwo ezahlukahlukene ezindaweni ezibandayo ezingaphansi kuka -40°C.