Izinga lokushisa eliphansicarbon steel pipeiyinsimbi yesakhiwo se-carbon, izinga lokushisa eliphansi le-carbon steel pipe lisebenza esimweni sokushisa esiphansi, esingamelana nomthelela othile wokushisa ophansi, ukusebenza komshini kungcono, futhi intengo iphansi, umthombo obanzi, osetshenziswa kabanzi.Ubuthakathaka bayo obukhulu ukuqina okuphansi, usayizi wesigaba izimfuneko eziphezulu zaseJapane ze-workpiece akufanele zisetshenziswe.
Izinga lokushisa eliphansi le-carbon steel pipe elicisha izinga lokushisa ku-A3 + (30 ~ 50) ℃, ngokusebenza, livame ukusethwa kumkhawulo ophezulu.Ipayipi lokushisa lokushisa eliphezulu lokucisha lingenza isivinini esiphansi, ukunciphisa i-oxidation ebusweni, futhi lingathuthukisa ukusebenza kahle komsebenzi.I-workpiece iyi-austenite efanayo, izodinga isikhathi esanele sokubamba.Uma umthamo wangempela wesithando somlilo ofakiwe, uzodinga ukufaneleka ukuze kunwetshwe isikhathi sokubamba.Uma kungenjalo, kungase kube nobulukhuni obanele ngenxa yokushisa okungalingani okubangelwa isenzakalo.Kodwa-ke, isikhathi sokubamba side kakhulu, kuzovela nezinhlamvu ezimahhadla, i-oxidation kanye ne-decarbonization izinkinga ezingathi sína ezithinta ikhwalithi yokucisha.Sikholelwa ukuthi uma isithando somlilo esifakiwe sikhulu kunamadokhumenti enqubo, isikhathi sokubamba sokushisa sizonwetshwa ngo-1/5.Izinga lokushisa eliphansi le-carbon steel pipe ngenxa yokuqina okuphansi, kufanele lisebenzise izinga lokupholisa elikhulu lesisombululo sikasawoti esingu-10%.I-workpiece emanzini, kufanele ibe lukhuni, kodwa hhayi ebandayo, uma 45 # ukunemba kwensimbi efakwe emanzini ahlanzekile, kungenzeka ukuqhekeka kwe-workpiece, lokhu kungenxa yokuthi lapho ucezu lokusebenzela lupholile cishe ku-180 ℃, i-austenite iguqulwa ngokushesha ibe umzimba wehhashi. izicubu ezibangelwa ukucindezeleka ngokweqile ngenxa.Ngakho-ke, lapho insimbi yokucisha neyokushisa ipholile ngokushesha kuleli banga, indlela kufanele ithathwe ukuze kunciphe ukupholisa.Njengoba izinga lokushisa lamanzi linzima ukuliqonda, isipiliyoni esinesibopho sokusebenza, lapho amanzi eyeka ukuphambanisa izinto zobuciko, ungakwazi ukuchelela aphole (isib. isipholile sikawoyela singaba ngcono).Ngaphezu kwalokho, i-workpiece emanzini, isenzo esifanele kufanele namanje kube ngokuhambisana geometry we workpiece, njengoba ukuvivinya umzimba njalo.Umshini wokupholisa omile kanye nocezu lokusebenza olunganyakazi, okuholela ebukhuni obungalingani, ingcindezi engalingani ishiya ukuwohloka okukhulu kwendawo yokusebenza, ngisho nokuqhekeka.
Izinga lokushisa eliphansi le-carbon steel pipe ilungu elicime ubulukhuni ngemva kokucisha kufanele lifinyelele ku-HRC56 ~ 59, amathuba okuba ingxenye enkulu ye-cross-section ephansi, kodwa hhayi ngaphansi kwe-HRC48, ngaphandle kwalokho, kubonisa ukuthi i-workpiece ayizange iqiniswe ngokuphelele, inhlangano ingase ibe yi-ferrite noma i-sorbite. izicubu, izinhlangano ezinjalo by tempering, namanje agcinwe ku-matrix, okuyinto engazange ucime izinhloso.Ipayipi lensimbi elinekhabhoni eliphansi liyashisa ngemva kokucisha, izinga lokushisa lokushisisa livamise ukuba ngu-560 ~ 600 ℃, ubulukhuni bungu-HRC22 ~ 34. Ngoba inhloso iwukuba ucime izakhiwo zemishini, ngakho-ke ububanzi obuningi bobulukhuni.Kodwa ukudweba izidingo zobulukhuni, kuyadingeka ukulungisa izinga lokushisa ngokwemidwebo ukuze uqinisekise ubulukhuni.Njengoba ezinye izinsimbi zensimbi ezibandayo zidinga amandla aphezulu, ubulukhuni buphakeme;kuyilapho ezinye izingxenye ze-gear keyway shaft, ngoba ngisho nangemva kokuba ukugaya kucishiwe, faka ukucubungula, izidingo zobulukhuni zokunciphisa.Mayelana Tempering isikhathi, kuye ngobulukhuni kanye nobukhulu workpiece, sikholelwa, kuncike ubulukhuni ngemva tempering lokushisa futhi tempering isikhathi esincane, kodwa kumele ibuyiselwe ngokusebenzisa jikelele njalo umsebenzi Tempering Isikhathi ihora elilodwa noma ngaphezulu.