Mixing of rubber is to disperse various compounds evenly in rubber with the help of mechanical force of rubber making machine, so as to form a multi-phase colloidal dispersion system with rubber as medium or a mixture of rubber and some compatible components (matching agent, other polymers) as medium, and incompatible matching agents (such as powder fillers, zinc oxide, pigments, etc.) as dispersed phase. endlelo. Swilaveko swokarhi swa xithekiniki swa endlelo ro hlanganisa i: ku hangalasiwa loku fanaka ka xiaki lexi hlanganisiweke, leswaku ku hangalaka lokunene ka xiaki xa nkatsakanyo, ngopfu ngopfu xiaki xo tiyisisa ku hlanganisiwa ku fana na khaboni ya ntima, swi fikeleriwa ku tiyisisa matirhelo lama nga cincekiki ya rhaba. Rubber leyi humelelaka yi vuriwa 'compounding rubber' naswona khwalithi ya yona yina nkucetelo wa nkoka eka ku lulamisiwa kuya emahlweni na khwalithi ya swihumelerisiwa.
Ku lwisana na ku dyuhala ka moya wo hisa kumbe ku dyuhala swiya swiva na nkoka swinene, ngopfu ngopfu eka switirhisiwa swa mimovha laha swiphemu swa rhaba switirhisiwaka ngopfu eka tindzhawu leti funengetiweke letingana mahiselo yale henhla ya ndzhawu. Vaendli va mimovha va titwe va ri ni ntshikilelo lowukulu wo tinyiketela eka vutomi byo leha bya vutirheli eka swiphemu swa vona swa rhaba. Swihlawulekisi swa anaerobic heat aging na swivumbeko swa ku hisa na ku dyuhala ka moya swihambanile. Rhaba yina ku tiya ka kuhisa ko antswa, kambe swinga endleka yinga ha koti ku tiyisela nhlaselo wa oxygen.
Ku lwisana na ku dyuhala ka moya wo hisa kumbe ku dyuhala swiya swiva na nkoka swinene, ngopfu ngopfu eka switirhisiwa swa mimovha laha swiphemu swa rhaba switirhisiwaka ngopfu eka tindzhawu leti funengetiweke letingana mahiselo yale henhla ya ndzhawu. Vaendli va mimovha va titwe va ri ni ntshikilelo lowukulu wo tinyiketela eka vutomi byo leha bya vutirheli eka swiphemu swa vona swa rhaba. Swihlawulekisi swa anaerobic heat aging na swivumbeko swa ku hisa na ku dyuhala ka moya swihambanile. Rhaba yina ku tiya ka kuhisa ko antswa, kambe swinga endleka yinga ha koti ku tiyisela nhlaselo wa oxygen.
Emisaveni leyi phikizanaka swinene ya bindzu ra rhaba, ntsengo wa ku hlanganisiwa i wa nkoka swinene eka ku humelela ka ikhonomi ya xiendliwa. Swi nga koteka ku tumbuluxa xivumbeko lexi hlanganisiweke lexi fikelelaka swilaveko swa muxavi hi ku ya hi matirhelo hamambirhi, kambe xi ariwa hi muxavi hikuva xi durha ngopfu. Ku engetela kwalano, switirhisiwa swa rhaba hi xitalo swi xavisiwa hi volume kutlula ntiko (switirhisiwa leswi vumbiweke hi xitalo swina sayizi). Hikwalaho, swa twala ku pimanisa 'cost per volume' ku tlula 'cost per weight' ya rhaba.