Kafin babban tsari na extrusion, abincin polymeric da aka adana yana haɗe da abubuwa daban-daban irin su stabilizers (don zafi, kwanciyar hankali na oxidative, kwanciyar hankali UV, da dai sauransu), pigments launi, ƙananan wuta, filler, lubricants, ƙarfafawa, da dai sauransu. ingancin samfurin da kuma aiwatarwa. Haɗin polymer tare da ƙari kuma yana taimakawa cimma ƙayyadaddun bayanin martabar kayan da aka yi niyya.
Ga wasu tsarin resin, ƙarin tsarin bushewa don hana lalata polymer saboda danshi yawanci ana aiki dashi. A gefe guda, ga waɗanda yawanci ba sa buƙatar bushewa kafin amfani da su, yana iya zama dole a sha bushewa musamman lokacin da aka adana waɗannan a cikin ɗakuna masu sanyi kuma ba zato ba tsammani an sanya su a cikin yanayi mai ɗumi ta yadda zai fara daɗaɗɗa a saman kayan.
Bayan an haɗa polymer da additives kuma an bushe, cakuda yana da nauyi a cikin abincin abinci kuma ta cikin makogwaro mai extruder.
Matsala ɗaya ta gama gari lokacin da ake sarrafa abubuwa masu ƙarfi kamar foda polymer shine saurin sa. Ga wasu lokuta, haɗin kayan abu a cikin hopper na iya faruwa. Don haka, ana iya amfani da matakai na musamman kamar allurar nitrogen ta tsaka-tsaki ko kowane iskar gas don dagula duk wani yumbu da aka gina a saman ma'ajin abinci don tabbatar da kwararar kayan.
Kayan yana gudana zuwa cikin sararin annular tsakanin dunƙule da ganga. Ana kuma ɗaure kayan da tashar dunƙulewa. Yayin da dunƙule ke jujjuya, ana isar da polymer gaba, kuma sojojin da ke jujjuyawa suna aiki da shi.
Ganga-gangan ana dumama zafi tare da haɓaka bayanan yanayin zafi a hankali. Yayin da cakudawar polymer ke tafiya daga yankin ciyarwa har zuwa yankin aunawa, ƙarfin juzu'i da dumama ganga suna sa kayan su zama filastik, gauraye iri ɗaya, a cuɗe su tare.
A ƙarshe, yayin da narkewar ke gabatowa ƙarshen extruder, ya fara wucewa ta cikin fakitin allo. Ana amfani da fakitin allo don tace duk wani kayan waje a cikin narkewar thermoplastic. Hakanan yana kare ramin farantin karfe daga toshewa. Ana tilasta narkewar daga cikin mutu don samun siffar mutu. Nan da nan sai a sanyaya kuma a janye shi daga mai fitar da shi a tsayin daka.
Ana iya yin ƙarin matakai kamar maganin harshen wuta, bugu, yankan, shafewa, deodorization, da dai sauransu bayan sanyaya. Extrudate ɗin za a bincika kuma a ci gaba da tattarawa da jigilar kaya idan duk ƙayyadaddun samfuran sun cika.
Lokacin aikawa: Dec-08-2022
