Umqulu sisixhobo esibangela ukuba isinyithi sivelise i-deformation yeplastiki.Iyinxalenye ebalulekileyo yokutya emisela ukusebenza kakuhle kwe-rolling mill kunye nomgangatho weemveliso eziqengqelekayo.Umqulu uyinxalenye ebalulekileyo ye-rolling mill kwi-rolling Mill.Uxinzelelo oluveliswa ngamabini okanye iqela lemiqulu lisetyenziselwa ukugoba intsimbi.Ithwala ubukhulu becala imithwalo eguqukayo kunye ne-static, ukunxiba kunye nokutshintsha kobushushu ngexesha lokuqengqeleka.
Ngokuqhelekileyo sisebenzisa iindidi ezimbini zemiqulu, i-cold roll kunye ne-hot roll.
Kukho iintlobo ezininzi zezixhobo zokuqengqeleka ezibandayo, ezifana ne-9Cr, 9cr2,9crv, 8crmov, njl. Kukho iimfuno ezimbini zolu hlobo lomqulu.
I-1: Umphezulu womqulu kufuneka ucinywe
2: Ukuqina komphezulu kufuneka kube hs45~105.
Izinto eziveliswa yi-hot rolling rolls ngokubanzi ziquka i-60CrMnMo, i-55mn2, njl. Olu hlobo lwe-roll lusetyenziswa kwiinkalo ezininzi.Ingasetyenziswa kwezinye iinkqubo ezifana nentsimbi yecandelo, intsimbi yentsimbi, intsimbi egogekileyo, ucingo olunesantya esiphezulu, umbhobho wensimbi ongenamthungo, i-billet, njl.Ngaphezu koko, i-hot roll isebenza kwiqondo lokushisa eliphezulu kwaye ivumela ukunxiba kwe-diameter ngaphakathi komthwalo womsebenzi weyunithi.Ngoko ke, ayifuni ubunzima bomhlaba, kodwa kuphela amandla aphezulu, ukuqina kunye nokumelana nokushisa.Umqulu oshushu wokuqengqeleka uqhelekile kuphela okanye ucinywe ngokupheleleyo, kwaye ubunzima bomphezulu buya kuba yi-hb190~270.
Iifomu zokungaphumeleli eziqhelekileyo kunye nezizathu zemiqulu zezi zilandelayo:
1. Iintanda.
Ukuqhekeka kwe-roller ikakhulu kubangelwa uxinzelelo olugqithisileyo lwendawo kunye nokupholisa ngokukhawuleza kunye nokufudumala kwe-roller.Kwi-rolling mill, ukuba i-emulsion nozzle ivaliwe, okubangela ukuba iimeko zokupholisa zendawo ezihluphekileyo zomqulu, ukuqhekeka kuya kwenzeka.Ngenxa yobushushu obuphantsi ebusika, iintanda zenzeke ngakumbi kunasehlotyeni.
2. Ukuxobula.
Ukuba i-crack iyaqhubeka ikhula, iya kwenza ibhloko okanye i-sheet peeling.Abo bane-peeling ekhanyayo banokuqhubeka nokusebenzisa emva kokugaya, kwaye imiqulu ene-peeling enzulu iya kuchithwa.
3. Zoba umngxuma.
Ukumakishwa komngxuma ikakhulu ngenxa yokuba i-weld joint of the strip strip okanye ezinye iisundries zingena kwi-rolling Mill, ukuze umphezulu womqulu uphawulwe ngemingxuma yeemilo ezahlukeneyo.Ngokuqhelekileyo, imiqulu enemingxuma kufuneka itshintshwe.Kwimeko yomgangatho ombi we-weld wentsimbi, xa umsebenzi wokuqengqeleka udlula i-weld, iya kuphakanyiswa kwaye icinezelwe ukunqanda ukukrwela umngxuma.
4. Ncamathelisa umqulu.
Isizathu sokuncamathela umqulu kukuba ngexesha lenkqubo ebandayo yokuqengqeleka, amaqhekeza aphukileyo, ukusongwa kwamaza kunye nemiphetho eyaphukileyo ibonakala, kwaye xa uxinzelelo oluphezulu kunye nobushushu obuphezulu buvela kwangoko, kulula kakhulu ukwenza ikhonkco phakathi komtya wentsimbi kunye nomqulu. , okubangela umonakalo wendawo encinci kwi-roll.Ngokusila, i-roller ingasetyenziselwa kwakhona emva kokuba i-crack surface iphelile, kodwa ubomi bayo benkonzo buyancipha ngokucacileyo, kwaye kulula ukuyikhupha ekusebenziseni kwixesha elizayo.
5. Irola.
I-sliver roll ibangelwa ikakhulu kukunciphisa okugqithisileyo, okubangelwa ulusu oluphindwe kabini okanye ukugoqa okuncinci kwentsimbi yentsimbi kunye nokuphambuka kwentsimbi yomtya.Xa i-roll stranding inzima, ukuncamatheliswa kwe-roll kwenzeka kwaye intsimbi yomtya iyaqhekeka.Xa i-roller igobile kancinane, kukho umkhondo kwintsimbi yomtya kunye ne-roller.
6. Ikhefu lokuqengqeleka.
Izizathu eziphambili zokuqhekeka kwe-roll kuxinzelelo olugqithisileyo (oko kukuthi uxinzelelo olugqithisiweyo), iziphene kwi-roll (i-non-metallic inclusions, i-bubbles, njl.) kunye nentsimi yoxinzelelo olubangelwa ukushisa okungalinganiyo.
Ixesha lokuposa: Jun-08-2022