Kuyini ukucisha?
Ukwelashwa kokucisha kuyinqubo yokwelapha ukushisa lapho insimbi enokuqukethwe kwekhabhoni engu-0.4% ishisisa ibe ngu-850T futhi ipholiswe ngokushesha.Nakuba ukucisha kwandisa ubulukhuni, kwandisa nokuqina.Imidiya yokucisha evame ukusetshenziswa ihlanganisa amanzi anosawoti, amanzi, uwoyela wamaminerali, umoya, njll. Ukucisha kungathuthukisa ukuqina nokuqina kwezinsimbi zokusebenza, futhi kusetshenziswa kabanzi kumathuluzi ahlukahlukene, isikhunta, amathuluzi okulinganisa, nezingxenye ezingagugi (njenge amagiya, ama-roller, izingxenye ze-carburized, njll.).Ngokuhlanganisa ukucisha nokushisa emazingeni okushisa ahlukene, amandla namandla okukhathala kwensimbi angathuthukiswa kakhulu, futhi ukuxhumana phakathi kwalezi zakhiwo kungafinyelelwa ukuze kuhlangatshezwane nezidingo ezihlukene zokusetshenziswa.
Iyini inhloso yokucisha insimbi?
Inhloso yokucisha ukuguqula i-austenite epholile ibe i-martensite noma i-bainite ukuze kutholwe i-martensite noma isakhiwo se-bainite, bese kubambisana nokushisa emazingeni okushisa ahlukene ukuze kuthuthukiswe kakhulu ukuqina, ukuqina, ukumelana nokugqoka, amandla okukhathala, kanye nokuqina kwensimbi, ngaleyo ndlela kuhlangatshezwane izidingo ezahlukene zokusetshenziswa kwezingxenye ezahlukene zemishini namathuluzi.Kungenzeka futhi ukuhlangabezana nezakhiwo ezikhethekile zomzimba namakhemikhali zezinsimbi ezithile ezikhethekile, njenge-ferromagnetism kanye nokumelana nokugqwala, ngokucisha.
Ukucisha imvamisa ephezulu yensimbi ye-S45C
1. Ukucisha imvamisa ephezulu kusetshenziselwa kakhulu ukucisha izingxenye zensimbi zezimboni.Kuyindlela yokwelapha ukushisa kwensimbi ekhiqiza inani elithile lamanje elingeniswayo ebusweni bomsebenzi womkhiqizo, lishise ngokushesha indawo engaphezulu, bese liyicima ngokushesha.Imishini yokushisisa yokungeniswa isho okokusebenza kwemishini eyenza ukushisisa kwezinto zokusebenza ukuze kucinywe indawo.Isimiso esiyisisekelo sokushisisa okungeniswayo: Isiqephu sokusebenza somkhiqizo sifakwa ku-inductor, ngokuvamile okuyishubhu yethusi elingenalutho elinefrikhwensi emaphakathi yokufaka noma amandla e-AC emvamisa ephezulu (1000-300000Hz noma ngaphezulu).Ukukhiqizwa kwendawo kazibuthe eshintshanayo kukhiqiza i-current etholwe yemvamisa efanayo kucezu lokusebenza.Lokhu kwamanje okudaliwe kusatshalaliswa ngokungalingani phezulu, kunamandla ngaphezulu, kodwa kubuthakathaka ngokuqhathaniswa ngaphakathi, kusondele ku-0 phakathi nendawo.Ngokusebenzisa lo mphumela wesikhumba, ingaphezulu le-workpiece lingashiswa ngokushesha, futhi phakathi nemizuzwana embalwa, izinga lokushisa elingaphezulu lingakhuphuka ngokushesha libe ngu-800-1000 ℃, ngokunyuka okuncane kwezinga lokushisa eliphakathi nendawo.Ubulukhuni obuphezulu bobuso bensimbi engu-45 ngemva kokucisha imvamisa ephezulu bungafinyelela ku-HRC48-53.Ngemuva kokucinywa kwe-high-frequency, ukumelana nokugqoka nokusebenza kuzokwanda kakhulu.
Umehluko phakathi kwensimbi ecishiwe nengacishiyo engu-2.45: Kunomehluko omkhulu phakathi kwensimbi engama-45 ecishiwe nengacishiwe, ikakhulukazi ngoba insimbi ecishiwe nepholile ingafinyelela ukuqina okuphezulu namandla anele.Ukuqina kwensimbi ngaphambi kokucisha nokushisa kuseduze ne-HRC28, futhi ubulukhuni ngemva kokucisha kanye nokushisa kuphakathi kwe-HRC28-55.Ngokuvamile, izingxenye ezenziwe ngalolu hlobo lwensimbi zidinga izici ezinhle zemishini ezihlanganisayo, okungukuthi, ukugcina amandla aphezulu kuyilapho zinepulasitiki enhle nokuqina.
Isikhathi sokuthumela: Nov-23-2023