Ukubumba
Ukubumba irabha yerabha ikakhulu kukuncamathisela irabha yokugquma kumbindi wesinyithi, kubandakanywa indlela yokusonga, indlela yokukhupha, indlela yokubumba, indlela yoxinzelelo lwenaliti kunye nendlela yokutofa.Okwangoku, ezona mveliso ziphambili zasekhaya zenziwa ngoomatshini okanye bancamatheliswa ngesandla kunye nokubumba, kwaye uninzi lwamazwe angaphandle luye lwaqaphela ukuzenzekelayo ngoomatshini.Iirola zerabha ezinkulu kunye neziphakathi ziveliswa ngokusisiseko ngeprofayili ye-extrusion, i-pasting eqhubekayo yokubumba ngefilimu ekhutshiweyo okanye i-molding eqhubekayo yokubumba nge-tape ephumayo.Kwangaxeshanye, kwinkqubo yokubumba, ukucaciswa, ubungakanani kunye nokumila kwenkangeleko zilawulwa ngokuzenzekelayo yi-microcomputer, kwaye ezinye zinokubunjwa ngendlela ye-extruder ye-right-angle kunye ne-extrusion ekhethekileyo.
Indlela yokubumba ekhankanywe ngasentla ayinakunciphisa kuphela amandla omsebenzi, kodwa iphinde isuse amaqamza anokwenzeka.Ukuze kuthintelwe i-roller yerabha ukuba ingaguquki ngexesha le-vulcanization kunye nokuthintela ukuveliswa kwamaqamu kunye nezipontshi, ngakumbi kwi-roller yerabha ebunjwe yindlela yokusonga, indlela yoxinzelelo oluguquguqukayo kufuneka isetyenziswe ngaphandle.Ngokuqhelekileyo, indawo yangaphandle ye-rubber roller ihlanganiswe kwaye inxeba kunye neengqimba ezininzi ze-cotton cloth okanye i-nylon cloth, kwaye igxininiswe kwaye igxininiswe ngocingo lwensimbi okanye intambo yefiber.Nangona le nkqubo sele yenziwe ngoomatshini, ukunxitywa kufuneka kususwe emva kokuxhatshazwa ukwenza inkqubo ye-"cecal", eyenza nzima inkqubo yokuvelisa.Ngaphezu koko, ukusetyenziswa kwelaphu lokunxiba kunye nentambo yokujija kunqongophele kakhulu kwaye ukusetyenziswa kukhulu.inkcitho.
Kwi-roller encinci kunye ne-micro rabber, iinkqubo ezahlukeneyo zokuvelisa zingasetyenziswa, ezifana nokukhwela ngesandla, i-extrusion nesting, i-injection pressure, i-injection kunye nokugalela.Ukuze kuphuculwe ukusebenza kakuhle kwemveliso, uninzi lweendlela zokubumba zisetyenziswa ngoku, kwaye ukuchaneka kuphezulu kakhulu kunendlela yokungabumbi.Uxinzelelo lokutofa, inaliti yerabha eqinileyo kunye nokugalelwa kwerabha elulwelo kube yeyona ndlela ibalulekileyo yokuvelisa.
Vulcanization
Okwangoku, indlela ye-vulcanization yeerola zerabha ezinkulu neziphakathi iseyivulcanization itanki vulcanization.Nangona imo yoxinzelelo oluguquguqukayo itshintshiwe, ayikaphumi kumthwalo onzima womsebenzi wokuthutha, ukuphakamisa kunye nokukhulula.Umthombo wobushushu we-vulcanization uneendlela ezintathu zokufudumeza: umphunga, umoya oshushu kunye namanzi ashushu, kwaye eyona nto iphambili isengumphunga.Iirola zeerubha ezineemfuno ezikhethekileyo ngenxa yokunxibelelana kombindi wentsimbi kunye nomphunga wamanzi zithatha i-vulcanization ye-steam engathanga ngqo, kwaye ixesha liya kwandiswa nge-1 ukuya kuma-2 amaxesha.Ngokuqhelekileyo isetyenziselwa iirola zerabha ezineentsimbi ezingenanto.Kwii-roller ezikhethekileyo ze-rubber ezingenako ukuhlanjululwa ngetanki ye-vulcanizing, amanzi ashushu ngamanye amaxesha asetyenziselwa ukutshatyalaliswa, kodwa unyango lokungcola kwamanzi kufuneka lusonjululwe.
Ukuze kuthintelwe irabha kunye nombindi wentsimbi ukuba ungagxothwa ngenxa yokuncipha okwahlukileyo kokumahluko wokuqhutywa kobushushu phakathi kwerola yerabha kunye nombindi werabha, i-vulcanization ihlala ithatha indlela yokufudumeza kancinci kunye noxinzelelo, kwaye ixesha le-vulcanization lininzi. ixesha elide kunexesha le-vulcanization elifunwa yirabha ngokwayo..Ukuze kuphunyezwe i-vulcanization efanayo ngaphakathi nangaphandle, kunye nokwenza i-thermal conductivity yombindi wentsimbi kunye nerabha ifane, i-roller enkulu yerabha ihlala etankini iiyure ezingama-24 ukuya kwezingama-48, malunga namaxesha angama-30 ukuya kwangama-50 ixesha eliqhelekileyo lerabha yokuvuthuluka. .
Iirola zerabha ezincinci kunye nezincinci ngoku ubukhulu becala ziguqulwa zibe yipleyiti yokubumba i-vulcanization ye-vulcanization, itshintsha ngokupheleleyo indlela yesiqhelo yokugungxulwa kweerola zerabha.Kwiminyaka yakutshanje, oomatshini bokubumba benaliti baye basetyenziswa ukufakela imixokelelwane kunye ne-vacuum vulcanization, kwaye imibumbo inokuvulwa ize ivalwe ngokuzenzekelayo.Iqondo lomatshini kunye ne-automation liphuculwe kakhulu, kwaye ixesha le-vulcanization lifutshane, ukusebenza kwemveliso kuphezulu, kwaye umgangatho wemveliso ulungile.Ngokukodwa xa usebenzisa umatshini wokubumba irabha yokubumba umatshini wokubumba, iinkqubo ezimbini zokubumba kunye ne-vulcanization zidityaniswe zibe yinto enye, kwaye ixesha linokucuthwa libe yimizuzu emi-2 ukuya kweyesi-4, eliye laba lisikhokelo esibalulekileyo sophuhliso lwemveliso yerabha.
Okwangoku, irabha yolwelo emelwe yi-polyurethane elastomer (i-PUR) iphuhlise ngokukhawuleza kwimveliso ye-rubber rollers, kwaye ivule indlela entsha yezinto eziphathekayo kunye nenkqubo yokuguqulwa kwayo.Yamkela ifom yokugalela ukulahla imisebenzi yokubumba eyinkimbinkimbi kunye nezixhobo ezinkulu ze-vulcanization, ilula kakhulu inkqubo yokuvelisa i-rubber rollers.Nangona kunjalo, eyona ngxaki inkulu kukuba kufuneka kusetyenziswe ukungunda.Kwii-roller ezinkulu zerabha, ngakumbi kwiimveliso zomntu ngamnye, iindleko zokuvelisa zinyuka kakhulu, ezizisa ubunzima obukhulu ekukhuthazeni nasekusebenziseni.
Ukuze kulungiswe le ngxaki, inkqubo entsha ye-PUR ye-rubber roller ngaphandle kokuveliswa kwesikhunta ibonakala kwiminyaka yamuva.Isebenzisa i-polyoxypropylene ether polyol (TDIOL), i-polytetrahydrofuran ether polyol (PIMG) kunye ne-diphenylmethane diisocyanate (MDl) njengezinto ezibonakalayo.Isabela ngokukhawuleza emva kokuxuba kunye nokushukumisa, kwaye ngokobungakanani kugalelwa kumbindi wentsimbi yerabha ejikeleza kancinane., Iqondwa inyathelo ngesinyathelo ngelixa igalela kwaye iphilisa, kwaye ekugqibeleni i-rubber roller yenziwa.Le nkqubo ayifutshane kuphela kwinkqubo, iphezulu kwi-mechanization kunye ne-automation, kodwa iphinda isuse imfuno yokubumba okukhulu.Inokuvelisa i-rubber rollers yenkcazo eyahlukeneyo kunye nobukhulu ngokuthanda, okunciphisa kakhulu iindleko.Kuye kwaba yikhokelo yophuhliso oluphambili lwe-PUR i-rubber rollers.
Ukongeza, iirola zerabha ezincinci ezisetyenziselwa ukwenza izixhobo ezizisebenzelayo zeofisi ezinerabha elulwelo lwe-silicone nazo zikhula ngokukhawuleza kwihlabathi liphela.Zahlulwe zibe ziindidi ezimbini: ukunyanga ukufudumeza (LTV) kunye nokunyanga ubushushu begumbi (RTV).Izixhobo ezisetyenzisiweyo zikwahluke kwi-PUR engentla, zenza olunye uhlobo lwefom yokuphosa.Apha, umba obaluleke kakhulu yindlela yokulawula kunye nokunciphisa i-viscosity ye-rubber compound ukuze ikwazi ukugcina uxinzelelo oluthile kunye nesantya se-extrusion.
Ixesha lokuposa: Jul-07-2021