I-roll iyithuluzi elibangela ukuba insimbi ikhiqize ukuguqulwa kwepulasitiki.Kuyingxenye ebalulekile edlayo enquma ukusebenza kahle kwesigayo kanye nekhwalithi yemikhiqizo egoqiwe.Umqulu uyingxenye ebalulekile yesigayo esigaywayo.Ukucindezela okukhiqizwa yipheya noma iqembu lemiqulu kusetshenziselwa ukugoqa insimbi.Ithwala ikakhulukazi imithwalo eguquguqukayo nemile, ukuguga kanye nezinga lokushisa elishintshayo ngesikhathi sokugoqa.
Ngokuvamile sisebenzisa izinhlobo ezimbili zamaroli, i-cold roll ne-hot roll.
Kunezinhlobo eziningi zezinto zokwakha ama-roll rolling abandayo, njenge-9Cr, 9cr2,9crv, 8crmov, njll. Kunezidingo ezimbili zalolu hlobo lwe-roll.
1: Ubuso bomqulu kufanele bucinywe
2: Ukuqina kwendawo kufanele kube hs45~105.
Izinto ezikhiqizwa ama-hot rolling rolls ngokuvamile zihlanganisa i-60CrMnMo, 55mn2, njll. Lolu hlobo lwe-roll lusetshenziswa ezinkambu eziningi.Ingasetshenziswa ekucubunguleni okuthile okufana nensimbi yesigaba, insimbi yebha, insimbi ekhubazekile, ucingo olunesivinini esikhulu, ipayipi lensimbi engenamthungo, i-billet, njll. inamandla okugoqa aqinile, ukuguga okukhulu nokukhathala okushisayo.Ngaphezu kwalokho, i-hot roll isebenza ekushiseni okuphezulu futhi ivumela ukuguga kobubanzi ngaphakathi komthwalo womsebenzi weyunithi.Ngakho-ke, akudingi ubulukhuni bobuso, kodwa kuphela amandla aphezulu, ukuqina nokumelana nokushisa.I-hot rolling roll yenziwa ngokwejwayelekile kuphela noma icinywe iyonke, futhi ukuqina kwendawo kuzoba ngu-hb190~270.
Amafomu okuhluleka ajwayelekile kanye nezimbangela zama-rolls zimi kanje:
1. Imifantu.
Ama-roller cracks abangelwa ikakhulukazi ukucindezela kwendawo okwedlulele kanye nokupholisa okusheshayo nokushisa kwe-roller.Emshinini wokugoqa, uma i-emulsion nozzle ivinjiwe, okuholela ezimweni ezimbi zokupholisa zendawo zomqulu, kuzokwenzeka imifantu.Ngenxa yokushisa okuphansi ebusika, imifantu ingenzeka kakhulu kunasehlobo.
2. Ukucwecwa.
Uma ukuqhekeka kuqhubeka nokukhula, kuzokwakha ibhulokhi noma ukuxebuka kweshidi.Lezo ezicwecwa ukukhanya zingaqhubeka nokusebenzisa ngemva kokugaya kabusha, futhi imiqulu ecwecwa kakhulu izokwesulwa.
3. Dweba umgodi.
Ukumaka umgodi kungenxa yokuthi i-weld joint ye-strip steel noma amanye ama-sundries angena emshinini wokugaya, ukuze indawo engaphezulu imakwe ngemigodi yokuma okuhlukile.Ngokuvamile, imiqulu enemigodi kufanele ishintshwe.Esimeni sekhwalithi yokushisela empofu ye-strip steel, lapho umsebenzi wokugingqa udlula i-weld, kufanele iphakanyiswe futhi icindezelwe phansi ukuvimbela ukuklwebheka komgodi.
4. Namathela umqulu.
Isizathu sokunamathisela umqulu ukuthi ngesikhathi senqubo yokugoqa okubandayo, kuvela izingcezu eziphukile, ukugoqa kwamagagasi kanye nemiphetho ephukile, futhi lapho ukucindezela okuphezulu kanye nokushisa okuphakeme ngokushesha kwenzeka, kulula kakhulu ukwakha isibopho phakathi komugqa wensimbi nomqulu. , okuholela ekulimaleni kwendawo encane kumqulu.Ngokugaya, i-roller ingasetshenziswa futhi ngemva kokuqedwa kokuqhekeka okungaphezulu, kodwa impilo yayo yesevisi iyancipha ngokusobala, futhi kulula ukuyikhipha ekusetshenzisweni kwesikhathi esizayo.
5. Irola.
I-sliver roll ibangelwa ikakhulukazi ukuncishiswa okukhulu, okuholela esikhumbeni esiphindwe kabili noma ukugoqeka kancane kwensimbi yomugqa kanye nokuchezuka kwensimbi yomugqa.Uma i-roll stranding ibucayi, ukunamathela kwe-roll kwenzeka futhi insimbi yomugqa iyaqhekeka.Lapho i-roller igobile kancane, kunemikhondo ku-strip steel kanye ne-roller.
6. Roll break.
Izimbangela eziyinhloko zokuphuka kwe-roll ziwukucindezela ngokweqile (okungukuthi ingcindezi yokugingqika eyeqile), amaphutha kumqulu (okungafakwanga kwensimbi, amabhamuza, njll.) kanye nenkambu yokucindezeleka ebangelwa izinga lokushisa elingalingani.
Isikhathi sokuthumela: Jun-08-2022