Tsarin dunƙule kai tsaye yana rinjayar girman waɗannan tasirin. Tsarin dunƙule gyare-gyaren allura na gama gari sun haɗa da tsaga{1}}nau'i, na'ura{2}}nau'i, da kwarara{3}}mai karkatar da sukulan da aka ƙera don haɓaka ingancin filastik. Ganga da gaske bututu ce mai madauwari tare da tashar fitarwa a tsakiya. A lokacin aikin filastik, ƙarfin motsa jiki don motsi gaba da haɗuwa yana zuwa daga jujjuyawar dangi na dunƙule da ganga.
Dangane da nau'ikan filastik daban-daban a cikin tashar dunƙulewa, dunƙule gabaɗaya an kasu kashi uku: sashin isarwa mai ƙarfi (wanda ake kira sashin ciyarwa), sashin narkewa (wanda ake kira sashin matsawa), da sashin homogenization (wanda ake kira sashin metering).
(1) Asalin Ka'idoji na Gyaran Filastik
Filastik na ci gaba da gaba ta hanyar aikin isar da sikirin juyawa. A yayin wannan motsi, robobin yana fuskantar haɗe-haɗen tasirin dumama ganga, yana jujjuya zafin zafi, da zafi mai ƙarfi, a hankali yana yin laushi kuma a ƙarshe ya zama narke (watau a cikin narkakken yanayin kwararar ruwa). Ana tura narkewar zuwa kan dunƙule kuma a adana shi a wurin da ke gaban ganga (watau yankin ajiya) ta dunƙule mai juyawa. Narke a cikin yankin ajiya yana da wani matsa lamba, wanda ke aiki a kan kullun, yana tura shi baya. Ko dunƙule na iya ja da baya kuma gudun da yake ja da baya ya dogara ne da girman juriya iri-iri dole ne ta shawo kanta (kamar juriyar juriya, juriyar juriyar mai aiki a cikin silinda na allura, watau matsi na baya na silinda allura, wanda kuma aka sani da matsa lamba na baya, da sauransu). Saboda dunƙule allura kuma yana da motsi na layi na baya yayin juyawa, aikin filastik yana ƙara rikitarwa. A halin yanzu, babu wani balagagge ka'idar da za a bayyana wannan tsari, kuma da yawa tsarin zane dogara ne a kan kwarewa.
(2) Basic Structure Terminology and related Services
Sashin Ciyarwa: Sashen ciyarwa ya ƙunshi yankin ciyarwa (wanda kuma aka sani da yankin hopper mai sanyaya), yanki mai ƙarfi na isar da sako, da yankin tsaka mai wuya. Babban aikinsa shine haɗawa da isar da filastik. Tsarin aiki na wannan sashe shine kamar haka: Bayan filastik ya shiga cikin dunƙule daga hopper ciyar, ana isar da shi kuma an haɗa shi gaba ta hanyar juzu'i tsakanin bangon ciki na ganga da ƙugiya a ƙarƙashin aikin jujjuyawar juyawa. Gabaɗaya, ana isar da filastik gaba a cikin ingantaccen yanayi a cikin sashin ciyarwa.
Bisa ga gwaje-gwajen gwaje-gwaje, yawanci a kusa da ƙarshen sashin ciyarwa, saboda tsananin zafi mai zafi, filastik da ke hulɗa da bangon ciki na ganga ya kai ga zafin jiki mai zurfi kuma ya fara narke, wanda ya haifar da wani yanki na canji.
(3) Sashin Matsi
Ayyukan wannan sashe shine don ƙara haɗawa da sanya filastik, tilasta iskar da ke kewaye da robobin zuwa tashar ciyarwa don fitarwa, da inganta yanayin zafi na filastik. Tashar dunƙule a cikin wannan sashe yakamata ta kasance na nau'in matsawa. Tsarin aiki shine kamar haka: Lokacin da filastik ya shiga sashin narkewa daga sashin ciyarwa, yayin da filastik ke ci gaba da isar da shi gaba, kuma saboda raguwa a hankali na dunƙulewar dunƙulewar dunƙulewar dunƙulewar dunƙulewa a hankali, da kuma hana tasirin allon tacewa, farantin mai karkatarwa, da kuma mutuƙar kai, filastik a hankali ya haifar da babban matsin lamba kuma yana ƙara haɗawa. A lokaci guda, kayan yana ƙarƙashin dumama na waje daga ganga da matsanancin motsawa, haɗuwa, da shear tsakanin dunƙule da ganga, yana haifar da zafin jiki na filastik ya ci gaba da tashi. Adadin narkakkar robobi (wanda ake kira ruwa lokaci ko narkakken tafkin) yana ci gaba da ƙaruwa, yayin da adadin ƙaƙƙarfan robobin da ba a narkewa ba (wanda ake kira da ƙarfi lokaci ko ƙaƙƙarfan gado) yana ci gaba da raguwa. A ƙarshen ɓangaren narkewa, duka ko mafi yawan filastik narke kuma suna canzawa zuwa yanayin kwarara mai ɗanɗano.
