Ukwelashwa ukushisa inqubo normalizing

Inqubo evamile iyinqubo yokwelapha ukushisa lapho insimbi ishiselwa khona ibe ngu-30-50 ° C ngaphezu kwe-Ac3 (noma i-Acm), bese ipholiswa emoyeni onganyakazi ngemva kwesikhathi esifanele sokulondoloza ukushisa. I-normalizing eshisisa insimbi iye ku-100-150 ℃ ngaphezu kwe-Ac3 ibizwa ngokuthi i-high-temperature normalizing.

Inhloso eyinhloko yokujwayela kokusakazwa kwensimbi ye-carbon steel medium and low ukucwenga isakhiwo. Uma kuqhathaniswa ne-annealing, i-pearlite lamellae nezinhlamvu ze-ferrite ngemva kokujwayelekile zicolile, ngakho amandla nobulukhuni buphakeme.

Ngenxa yokuqina okuphansi kwensimbi ephansi ye-carbon ngemuva kokufakwa kwe-anneal, ukwenzeka kokunamathela kummese kwenzeka ngesikhathi sokusika, futhi ukusebenza kokusika kubi. Ngokwandisa ubulukhuni ngokujwayelekile, ukusebenza kokusika kungathuthukiswa. Ezinye izingxenye zensimbi yesakhiwo sekhabhoni emaphakathi zingashintshwa ngokujwayelekile kanye nokushisisa ukuze kube lula ukwelashwa kokushisa. umsebenzi wezandla.

Insimbi ye-hypereutectoid ijwayelekile futhi ishisiswe ngommese ngaphezu kwe-Acm, ukuze usimende owawuyimeshi ekuqaleni uhlakazwe ngokuphelele ku-austenite, bese upholiswa ngesivinini esisheshayo ukuvimbela imvula ye-cementite emngceleni wokusanhlamvu we-austenite, ngaleyo ndlela Ingakwazi. qeda i-carbide yenethiwekhi futhi uthuthukise ukwakheka kwensimbi ye-hypereutectoid.

Izingxenye ezishiselwe ezidinga amandla e-weld zijwayele ukwenza ngcono ukwakheka kwe-weld nokuqinisekisa amandla e-weld.

Phakathi nenqubo yokwelashwa kokushisa, izingxenye ezilungisiwe kufanele zenziwe ngendlela evamile, futhi izingxenye zesakhiwo ezidinga izinkomba zokusebenza kwemishini kufanele zijwayeleke bese zicinywa futhi zifakwe umoya ukuze zihlangabezane nezidingo zokusebenza kwemishini. Ngemuva kokujwayelekile, insimbi ye-alloy ephakathi nendawo ephezulu kanye ne-forgings enkulu kufanele ifakwe ekushiseni okuphezulu ukuze kuqedwe ukucindezeleka kwangaphakathi okukhiqizwa ngesikhathi sokujwayelekile.

Ezinye izinsimbi ze-alloy zishintsha ingxenye ye-martensitic ngesikhathi sokubumba ukuze zakhe izakhiwo eziqinile. Ukuze kuqedwe lolu hlobo lwenhlangano embi, lapho kwamukelwa ukujwayelekile, izinga lokushisa elijwayelekile licishe libe ngu-20 ℃ ngaphezu kwezinga lokushisa elijwayelekile elijwayelekile ngokushisa nokugcina ukushisa.

Inqubo yokujwayela ilula uma kuqhathaniswa, evumela ukujwayela ngokufaka ukushisa kwemfucuza, okungasindisa amandla futhi kufinyeze umjikelezo wokukhiqiza.

Inqubo engalungile yokujwayela nokusebenza nayo ikhiqiza ukukhubazeka kwezicubu. Ngokufana nokukhipha isisu, indlela yokulungisa iyafana.