Irabha ye-Styrene-Butadiene
Intshayelelo yezinto:
Irabha ye-Styrene-butadiene (SBR), eyaziwa ngokuba yirabha ye-polybutadiene, yirabha yokwenziwa. Yenziwe ngepolymerization yeemonomers ezimbini, ibutadiene kunye ne-styrene. I-SBR inokumelana nokunxiba okugqwesileyo, ukumelana nokwaluphala kunye nokunwebeka, kwaye isetyenziswa ngokubanzi kwizihlandlo ezahlukeneyo.
Ubungakanani besicelo:
Ukwenziwa kweTire: I-SBR yenye yezona zinto zixhaphakileyo kusetyenziswa irabha ekwenzeni amatayara. Ingasetyenziselwa ukunyathela kwetayara, i-sidewalls kunye nomzimba ukubonelela ukuhamba kakuhle kunye nokumelana nokunxiba.
Iimveliso zerabha :I-SBR isetyenziselwa ukuveliswa kweemveliso ezahlukeneyo zerabha, ezinjengezitywina, imibhobho, imibhobho, iMATS yerabha, njl njl. Ukunwebeka kwayo kunye nokuqina kwayo kuyenza ilungele ezi mveliso.
I-Sole: Kuba i-SBR inokumelana nokunxiba okugqwesileyo kunye nokuchasana nokutyibilika, ihlala isetyenziswa ekwenzeni izihlangu zemidlalo, izihlangu zokusebenza kunye nezinye iisole.
Izinto zokuncamathelisa kwimizi-mveliso:I-SBR iqhele ukusetyenziswa njengenxalenye yezinto ezincamathelayo kwimizi-mveliso ukubopha izinto ezahlukeneyo ezifana neentsimbi, iiplastiki kunye neenkuni.
Izixhobo zemidlalo: I-SBR ikwasetyenziselwa ukwenza izixhobo zemidlalo ezifana nebhola yomnyazi kunye nebhola ekhatywayo, kunye neendawo zokubaleka iingoma kunye nezixhobo zokuzilolonga.
Iimveliso ezibunjiweyo zokutofa isitofu
Iinkqubo zokuVelisa iiMveliso zeRubha
Ukuveliswa kweempahla zerabha kubandakanya iinkqubo ezininzi ezintsonkothileyo eziguqula imathiriyeli yerabha ekrwada ibe yimveliso yokugqibela. Ezi nkqubo ziyahluka ngokusekelwe kuhlobo lwerabha esetyenzisiweyo kunye nento ethile eyenziwayo. Ezi zilandelayo ziinkonzo zokwenza irabha esizinikezelayo ukuxhasa iimfuno zakho:
Ukubunjwa koxinzelelo
Kwi-compression molding, i-compound ye-rubber ifakwe kwi-mold cavity, kwaye uxinzelelo lusetyenziselwa ukucinezela izinto kwimilo efunwayo. Ubushushu busetyenziswa ukunyanga irabha. Le ndlela iqhele ukusetyenziselwa ukuvelisa iimveliso ezinje ngee-gaskets, itywina, kunye nezinto zemoto.
Kwi-compression molding, i-compound ye-rubber ifakwe kwi-mold cavity, kwaye uxinzelelo lusetyenziselwa ukucinezela izinto kwimilo efunwayo. Ubushushu busetyenziswa ukunyanga irabha. Le ndlela iqhele ukusetyenziselwa ukuvelisa iimveliso ezinje ngee-gaskets, itywina, kunye nezinto zemoto.
IsitofuUkubumba
Ukubumba isitofu kubandakanya ukutofa irabha etyhidiweyo kumngundo phantsi koxinzelelo oluphezulu. Le nkqubo ilungele ukwenza iinxalenye ezintsonkothileyo nezichanekileyo, kubandakanywa amacandelo eemoto kunye nempahla yabathengi. Ukugqithisa kunye nokufaka ukubunjwa kweenguqu zale nkqubo, ezibandakanya ukudityaniswa kweengxenye zetsimbi ezigqityiweyo kwi-mold cavity ngaphambi kokutofa irabha.
Ukubumba isitofu kubandakanya ukutofa irabha etyhidiweyo kumngundo phantsi koxinzelelo oluphezulu. Le nkqubo ilungele ukwenza iinxalenye ezintsonkothileyo nezichanekileyo, kubandakanywa amacandelo eemoto kunye nempahla yabathengi. Ukugqithisa kunye nokufaka ukubunjwa kweenguqu zale nkqubo, ezibandakanya ukudityaniswa kweengxenye zetsimbi ezigqityiweyo kwi-mold cavity ngaphambi kokutofa irabha.
Transfer Molding
Ukudibanisa imiba yokunyanzeliswa kunye nokubunjwa kwenaliti, ukubunjwa kokudluliselwa kusebenzisa inani elilinganisiweyo lerabha kwigumbi elifudumeleyo. I-plunger inyanzelisa imathiriyeli kumngxuma wokungunda, iyenze ilungele ukuvelisa izihlanganisi zombane, iigrommets, kunye namalungu amancinci achanekileyo.
Ukudibanisa imiba yokunyanzeliswa kunye nokubunjwa kwenaliti, ukubunjwa kokudluliselwa kusebenzisa inani elilinganisiweyo lerabha kwigumbi elifudumeleyo. I-plunger inyanzelisa imathiriyeli kumngxuma wokungunda, iyenze ilungele ukuvelisa izihlanganisi zombane, iigrommets, kunye namalungu amancinci achanekileyo.
Extrusion
I-Extrusion isetyenziselwe ukudala ubude obuqhubekayo berabha enemilo enqamlezileyo enqamlezileyo, efana nemibhobho, iityhubhu, kunye neeprofayili. Irabha inyanzeliswa ngokufa ukufezekisa uqwalaselo olufunwayo.
I-Extrusion isetyenziselwe ukudala ubude obuqhubekayo berabha enemilo enqamlezileyo enqamlezileyo, efana nemibhobho, iityhubhu, kunye neeprofayili. Irabha inyanzeliswa ngokufa ukufezekisa uqwalaselo olufunwayo.
Ukunyanga (Vulcanization)
Ukunyanga, okanye i-vulcanization, ibandakanya ukudibanisa imixokelelwane yerabha yepolymer ukuqinisa amandla, ukuqina, kunye nokumelana nobushushu. Oku kuphunyezwa ngokusetyenziswa kobushushu kunye noxinzelelo kwimveliso yerabha ebunjiweyo, kunye neendlela eziqhelekileyo ezibandakanya umphunga, umoya oshushu, kunye nokunyanga i-microwave.
Ukunyanga, okanye i-vulcanization, ibandakanya ukudibanisa imixokelelwane yerabha yepolymer ukuqinisa amandla, ukuqina, kunye nokumelana nobushushu. Oku kuphunyezwa ngokusetyenziswa kobushushu kunye noxinzelelo kwimveliso yerabha ebunjiweyo, kunye neendlela eziqhelekileyo ezibandakanya umphunga, umoya oshushu, kunye nokunyanga i-microwave.
Irabha ukuya kwiMetal Bonding
Inkqubo ekhethekileyo, i-rubber kwi-metal bonding yenza iimveliso ezidibanisa ukuguquguquka kwerabha kunye namandla esinyithi. Icandelo lerabha lilungiswe kwangaphambili okanye libunjwe, libekwe phezu kwentsimbi kunye ne-adhesive, kwaye emva koko iphantsi kobushushu kunye noxinzelelo lwe-vulcanization okanye ukunyanga. Le nkqubo ibophelela irabha ngokwekhemikhali kwintsimbi, idala uqhagamshelo oluluqilima noluhlala luhleli lubalulekile kwizicelo ezifuna ukudambisa ukungcangcazela kunye nenkxaso yolwakhiwo.
Inkqubo ekhethekileyo, i-rubber kwi-metal bonding yenza iimveliso ezidibanisa ukuguquguquka kwerabha kunye namandla esinyithi. Icandelo lerabha lilungiswe kwangaphambili okanye libunjwe, libekwe phezu kwentsimbi kunye ne-adhesive, kwaye emva koko iphantsi kobushushu kunye noxinzelelo lwe-vulcanization okanye ukunyanga. Le nkqubo ibophelela irabha ngokwekhemikhali kwintsimbi, idala uqhagamshelo oluluqilima noluhlala luhleli lubalulekile kwizicelo ezifuna ukudambisa ukungcangcazela kunye nenkxaso yolwakhiwo.
Ukudibanisa
Ukudibanisa kubandakanya ukuxuba imathiriyeli yerabha ekrwada kunye nezongezo ezahlukeneyo ukwenza ikhompawundi yerabha eneempawu ezithile. Izongezo zingabandakanya ii-agent zokunyanga, i-accelerators, i-antioxidants, ii-fillers, i-plasticizers, kunye ne-colorants. Oku kuxutywa ngokuqhelekileyo kwenziwa kwi-mill-roll-roll okanye i-mixer yangaphakathi ukuqinisekisa ukuhanjiswa okufanayo kwezongezo.
Ukudibanisa kubandakanya ukuxuba imathiriyeli yerabha ekrwada kunye nezongezo ezahlukeneyo ukwenza ikhompawundi yerabha eneempawu ezithile. Izongezo zingabandakanya ii-agent zokunyanga, i-accelerators, i-antioxidants, ii-fillers, i-plasticizers, kunye ne-colorants. Oku kuxutywa ngokuqhelekileyo kwenziwa kwi-mill-roll-roll okanye i-mixer yangaphakathi ukuqinisekisa ukuhanjiswa okufanayo kwezongezo.
Ukugaya
Ukulandela i-compounding, i-compound yerabha iqhuba iinkqubo zokugaya okanye ukuxuba ukuqhubela phambili i-homogenize kunye nokubumba izinto. Eli nyathelo lisusa amaqamza omoya kwaye liqinisekisa ukufana kwikhompawundi.
Ukulandela i-compounding, i-compound yerabha iqhuba iinkqubo zokugaya okanye ukuxuba ukuqhubela phambili i-homogenize kunye nokubumba izinto. Eli nyathelo lisusa amaqamza omoya kwaye liqinisekisa ukufana kwikhompawundi.
I-Post-Processing
Emva kokunyanga, imveliso yerabha inokungena kwiinkqubo ezongezelelweyo, kubandakanywa ukucheba, ukutshitshiswa (ukususa izinto ezingaphezulu), kunye nonyango lwangaphandle (olufana nokugquma okanye ukupolishwa) ukuhlangabezana neemfuno ezithile.
Emva kokunyanga, imveliso yerabha inokungena kwiinkqubo ezongezelelweyo, kubandakanywa ukucheba, ukutshitshiswa (ukususa izinto ezingaphezulu), kunye nonyango lwangaphandle (olufana nokugquma okanye ukupolishwa) ukuhlangabezana neemfuno ezithile.