Ibitabo byerekeranye no guhindagura plastike mubisanzwe bifata plastike mugice gikomeye cyo gutanga ibice nkigitanda gikomeye kandi nta kugenda hagati ya granules. Umuvuduko wohereza imbere noneho ugenwa mukubara uburyo bwiza bwo kugenda no guterana hagati yiki gitanda gikomeye nurukuta rwa barrale, ubuso bwibiryo bya screw, hamwe numuyoboro wa screw.
Ubu buryo butandukanye cyane nukuri kandi ntibushobora gukoreshwa mugusuzuma ibiryo bya granules ya plastike yuburyo butandukanye. Niba granules ya pulasitike ari ntoya, izatandukana kandi ihindagurika nkuko bikururwa imbere nurukuta rwa barrale, buhoro buhoro bigahuzwa kugirango bikore ibyuma bikomeye. Iyo diameter ya granules igereranije nuburebure bwumuyoboro wa screw, inzira yazo ni icyerekezo cyumurongo ugana kumuyoboro wa screw, hiyongereyeho umurongo ufite umurongo muto. Kuberako plastiki itunganijwe neza mumiyoboro ya screw iyo granules nini, umuvuduko wo gutanga uratinda. Iyo granules zimaze kuba nini kuburyo diameter yazo irenze ubujyakuzimu bwa enterineti iyo winjiye mu gice cyo guhunika, plastike izahagarara hagati ya screw na barriel. Niba imbaraga zo gukurura imbere zidahagije kugira ngo tuneshe imbaraga zisabwa kugira ngo uhindure granules ya plastike, plastike izaguma mu muyoboro wa screw kandi ntigenda imbere.
Iyo plastiki yegereye aho ishonga, plastike ihuye na barrile itangira gushonga, ikora firime yashongeshejwe. Iyo umubyimba wiyi firime ushongeshejwe urenze icyuho kiri hagati ya screw na barriel, isonga yimbavu ya screw isibanganya byimazeyo firime yashongeshejwe kuva kurukuta rwimbere rwikariso yerekeza kumuzi yurubavu rwa screw, buhoro buhoro uyihinduramo umuyaga - nka zone itemba - ikidendezi cyashongeshejwe - kuruhande rwimbere.
Bitewe no kugenda gahoro gahoro k'umuyoboro wa screw mu gice cyashongeshejwe no kwikuramo pisine yashongeshejwe, uburiri bukomeye buhatirwa kwerekeza ku rukuta rw'imbere rwa barriel, bityo byihutisha uburyo bwo guhererekanya ubushyuhe kuva kuri barri ishyushye kugera ku buriri bukomeye. Icyarimwe, kuzunguruka kwa screw bitera ibikorwa byo kogosha kuri firime yashongeshejwe hagati yigitanda gikomeye nurukuta rwimbere rwa barriel, gushonga bikomeye kumurongo uri hagati ya firime yashongeshejwe nigitanda gikomeye. Mugihe uburiri bukomeye buzunguruka imbere, ubwinshi bwayo buragabanuka buhoro buhoro, mugihe ubunini bwa pisine yashongeshejwe bwiyongera buhoro buhoro. Niba igipimo cyo kugabanuka muburiri bukomeye buriri munsi yikigereranyo cyo kugabanuka kwubujyakuzimu bwa screw, uburiri bukomeye burashobora guhagarika igice cyangwa burundu umuyoboro wa screw, bigatera ihindagurika muri plastike, cyangwa biganisha ku bushyuhe bukabije bwaho bitewe numuvuduko ukabije waho hamwe nubushyuhe bwo guterana amagambo.
Mu gice cya homogenisation ya screw, uburiri bukomeye bwarasenyutse kubera ubunini bwabwo, bukora uduce duto duto twatatanye muri pisine yashongeshejwe. Ibi bice bikomeye bishonga binyuze mu guterana no guhererekanya ubushyuhe hamwe no gushonga. Kuri iyi ngingo, imikorere nyamukuru ya screw ni uguhindura plastike kugirango ushire hamwe. Ikwirakwizwa ryumuvuduko ushonga kuva kumuvuduko mwinshi hafi yurukuta rwa barrale kugeza kumuvuduko wo hasi hafi yumuyoboro wa screw. Niba umuyoboro wa screw ari muremure kandi ushonga hejuru yubushwashwanutsi ni mwinshi, ubushyamirane buri hagati ya molekile zishonga bizaba bikomeye.
Bitewe n’itandukaniro rigaragara mu gipimo cyo gushonga, gushonga kwijimye, gushonga ubushyuhe bwikigereranyo, ubukonje bwikigereranyo cyubushyuhe nigipimo cyogosha, kwangirika kwimyuka yo hejuru yubushyuhe -, hamwe na coefficente yo guterana hagati yibice bya pulasitike, ibisanzwe bisanzwe - imiyoboro yabigenewe irashobora guhura nubushyuhe bukabije cyane mubice bimwe na bimwe - PP - R, PVC, nibindi). Iyi phenomenon irashobora kuvaho mugabanya umuvuduko wa screw, ariko byanze bikunze bigira ingaruka kumikorere. Kugirango tugere kuri plastike neza yibi bikoresho bya plastiki, isosiyete yacu yashyizeho imashini yihariye ya plastike hamwe na barrale kuri plastiki. Iyi miyoboro yihariye hamwe na barrale yabugenewe kugirango ikemure ibibazo byingenzi nka coefficient de fraisement ikomeye, gushonga kwijimye, no gushonga umuvuduko wa plastiki tumaze kuvuga.
