Kayayyakin Extrusion Na Musamman
Ana amfani da abubuwa iri-iri iri-iri a cikin tsarin extrusion. Anan za mu iya ɗaukar misalin tsarin extrusion na PVC. Wasu sauran kayan sune polyethylene, acetal, nailan, acrylic, polypropylene, polystyrene, polycarbonate, da acrylonitrile. Waɗannan su ne kayan farko da aka yi amfani da su a cikin tsarin extrusion. Koyaya, tsarin bai iyakance ga waɗannan kayan ba.
Ilimin asali nafilastik extrusion tsari
Tsarin extrusion na filastik zai fara tare da canza danyen guduro. Da farko, sanya shi a cikin hopper na extruder. Lokacin da resin ba shi da abubuwan ƙarawa don wasu takamaiman aikace-aikacen, ana ƙara abubuwan da ke cikin hopper. Bayan an sanya shi, ana ciyar da resin daga tashar abinci na hopper, sa'an nan kuma ya shiga ganga na extruder. Akwai dunƙule mai juyawa a cikin ganga. Wannan zai ciyar da resin, wanda zai yi tafiya a cikin dogon ganga.
A lokacin wannan tsari, resin yana fuskantar yanayin zafi mai yawa. Matsanancin zafin jiki na iya narkar da kayan. Dangane da zafin ganga da nau'in thermoplastic, zafin jiki na iya bambanta daga 400 zuwa 530 Fahrenheit. Bugu da ƙari, da yawa masu extruders suna da ganga wanda ke ƙara zafi daga lodi zuwa ciyarwa zuwa narkewa. Dukan tsari yana rage haɗarin lalata filastik.
Roba zai narke kuma ya kai ƙarshen ganga, inda za a danna shi a kan bututun abinci ta hanyar tacewa kuma a ƙarshe ya mutu. A yayin aikin fitar da kaya, za a yi amfani da allo don cire gurɓata daga narkakkar filastik. Yawan allo, porosity na fuska da wasu dalilai ana sarrafa su don tabbatar da narkewa iri ɗaya. Bugu da ƙari, matsi na baya yana taimakawa wajen narkewa iri ɗaya.
Da zarar narkakkar kayan ya kai ga bututun ciyarwa, za a ciyar da shi a cikin rami mai ƙura. A ƙarshe, yana sanyaya kuma yana taurare don samar da samfurin ƙarshe. Filastik ɗin da aka yi sabo yana da wankan ruwa da aka rufe don hanzarta aikin sanyaya. Koyaya, yayin fitar da takarda, za'a maye gurbin ruwan wanka da rodi masu sanyi.
Babban matakai nafilastik bututu extrusion tsari
Kamar yadda aka ambata a baya, tsarin extrusion na filastik yana samar da samfurori iri-iri daga kayan gini zuwa sassa na masana'antu, ɗakunan lantarki, firam ɗin taga, edging, yanayin yanayi da shinge. Duk da haka, tsarin yin duk waɗannan samfurori daban-daban zai kasance iri ɗaya tare da ƙananan bambance-bambance. Akwai hanyoyi da yawa na kutsawa bututun filastik.
Mnarkewar abinci
Za a ɗora kayan danye ciki har da granules, foda ko granules a cikin hopper. Bayan haka, ana ciyar da kayan a cikin ɗakin zafi da ake kira extruder. Kayan yana narkewa yayin da yake wucewa ta hanyar extruder. Extruders suna da kusoshi biyu ko ɗaya.
Tace kayan aiki
Bayan kayan ya narke, aikin tacewa zai fara. Narkakkar kayan za ta gudana daga hopper ta makogwaro zuwa dunƙule mai jujjuyawar da ke gudana a cikin fiɗa. Juyawa mai juyawa yana aiki a cikin ganga mai kwance inda za a tace narkakkar kayan don samun daidaito iri ɗaya.
Ƙayyadaddun Ƙimar Narkakkar Material
Abubuwan kayan filastik sun bambanta dangane da albarkatun da aka yi amfani da su a cikin tsari. Koyaya, duk albarkatun ƙasa ana kula da zafi. Wadannan kayan za a fallasa su zuwa matsanancin zafi a takamaiman yanayin zafi. Matakan zafin jiki zai bambanta dangane da albarkatun kasa. Yayin kammala aikin, za a tura narkakken robobi ta buɗaɗɗen da ake kira mold. Yana siffanta kayan zuwa samfurin ƙarshe.
Psarrafa ost
A cikin wannan mataki, za a tsara yankan mutuƙar bayanin martaba don samun madaidaicin magudanar ruwa daga bayanan silindrical na extruder zuwa siffar bayanin martaba na ƙarshe. Yana da daraja a ambata cewa don samun samfurori masu dogara da inganci, daidaiton filastik yana da mahimmanci.
Material sanyaya
Za'a fitar da robobin daga cikin kwandon kuma a kai shi ta bel don yin sanyi. Irin wannan bel ana kiransa bel mai ɗaukar kaya. Bayan wannan mataki, samfurin ƙarshe yana sanyaya ruwa ko iska. Yana da kyau a ambata cewa tsarin zai kasance kama da gyare-gyaren allura. Amma bambancin shi ne cewa narkakkar robobin yana matse shi ta hanyar mold. Amma a cikin gyare-gyaren allura, tsarin yana faruwa ta hanyar tsari.
Lokacin aikawa: Yuli-20-2023
