I-Rubber yokubumba i-injection yokuBunjwa kweeMveliso zeRubha

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.

Isitofu sokubumba

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.

Extrusion

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.

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.

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.

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.

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.

Irabha yeNdalo (NR):

Ithathwe kwi-latex sap yomthi we-rubber (i-Hevea brasiliensis), i-rubber yendalo iyaziwa ngokunyuka kwayo kunye nokuqina. Idla ngokusetyenziswa kwizicelo ezinje ngamatayara, izihlangu, kunye neemveliso zabathengi, inokumelana nobushushu kunye neekhemikhali.

Irabha yokwenziwa:

Idalwe ngokwenziwa ngokusetyenziswa kweekhemikhali, iirubha zokwenziwa zinika uluhlu olubanzi lweempawu. Ezinye iintlobo eziqhelekileyo ziquka:

Irabha ye-Styrene-Butadiene (SBR)

Isetyenziselwa kakhulu ukuxhathisa kwe-abrasion kunye nokuqina, ihlala ifumaneka kumatayara emoto kunye namabhanti okuhambisa.

Irabha yePolybutadiene (BR):

Ixabiselwe ukomelela okuphezulu kunye nokuguquguquka okuphantsi kobushushu, okuqhelekileyo kusetyenziswa kwimveliso yamatayara kunye nesilungisi sempembelelo kwiiplastiki.

Irabha yeNitrile (NBR):

Ibonisa ukuxhathisa okukhethekileyo kwi-oyile, i-fuel, kunye neekhemikhali, iyenza ilungele i-seals, i-gaskets, kunye ne-O-rings kumacandelo eemoto kunye nezoshishino.

I-Butyl Rubber (IIR):

Eyaziwa ngokungakwazi ukungena kwiigesi, ilungele iityhubhu zangaphakathi zamatayara, iilayini zangaphakathi kwiitanki zokugcina imichiza, kunye nezithinteli zamayeza.

I-Neoprene (CR):

Inika ukuchasana okugqwesileyo kwimozulu, i-ozone, kunye neoyile, ukhetho oludumileyo lwee-wetsuits, i-hoses, kunye neegasket zemoto.

I-Ethylene Propylene Diene Monomer (EPDM):

Ixabiso lokumelana nobushushu, imozulu, kunye nemitha ye-UV, ehlala isetyenziswa kwizinto zokuphahla, izitywina zemoto, kunye nokugquma kombane wangaphandle.

Irabha yeSilicone (VMQ):

Eyaziwayo ngokumelana nobushushu obugqwesileyo kunye neempawu zokufakelwa kombane, ezisetyenziswa ngokuqhelekileyo kwizixhobo zonyango, i-cookware, izicelo zemoto, kunye ne-sealant.

IiFluoroelastomers (FKM):

Ukumelana kakhulu neekhemikhali, amaqondo obushushu aphezulu, kunye neoyile, esetyenziswa ngokuqhelekileyo kwizicelo ezifuna ukumelana neekhemikhali ezikhethekileyo, ezifana netywina kunye neegaskets kumashishini ekhemikhali kunye ne-aerospace.

Irabha yeChloroprene (CR):

Ikwabizwa ngokuba yi-Neoprene, inika ukuchasana okuhle kwimozulu kunye ne-ozone. Ihlala isetyenziswa kwizicelo ezifuna ulungelelwaniso lweempawu ezibonakalayo, njengeesuti zokumanzisa kunye nokubhantiswa kweshishini.

Ipolyurethane (PU):

Ukudibanisa iipropathi zerabha kunye neplastiki, irabha ye-polyurethane iyaxabiswa ngenxa yokuxhathisa i-abrasion kunye nomthamo wokuthwala umthwalo. Isetyenziswa ngokuqhelekileyo kumavili, i-bushings, kunye nezixhobo zoomatshini boshishino.