Fitar filastik, irin su bayanan martaba na UPVC (m polyvinyl chloride) ko samfuran bututu, galibi ana samun su ta hanyar hadawa, sarrafa fitar da fitarwa, tsarawa, cirewa, da yanke resin PVC da ƙari masu alaƙa. Abubuwan da ke shafar aikin samfurori suna rufe kowane mataki a cikin tsarin samarwa. Kowane mataki yana hulɗa kuma yana shafar juna ta hanyar kafofin watsa labaru na samfurin. Matsala ɗaya za a iya biya ta wasu matakan da ke cikin kewayon, don haka kowane mataki ya zama kwayoyin halitta. Daga cikin su, albarkatun kasa, kayan aikin dabara da dabarun aiki sune manyan abubuwan da ke cikin tsarin extrusion na filastik, wanda kai tsaye yana shafar inganci da fitarwa na gyare-gyaren extrusion. Wannan labarin yana mayar da hankali kan tasirin extrusion daga hangen nesa na kayan aiki da kayan aiki.
Yawanci, PVCSamfuran suna amfani da ƙari masu zuwa don aiwatar da tsarin extrusion:
1. PVC guduro:
Polyvinyl chloride, wanda ake magana da shi a matsayin PVC a Turanci, shine na uku mafi samar da filastik polymer roba a duniya (bayan polyethylene da polypropylene). PVC ta kasance mafi yawan ƙera robobi na gaba ɗaya a duniya kuma ana amfani da su sosai. Akwai nau'ikan PVC guda biyu: m (wani lokacin ana rage shi azaman RPVC) da taushi. Ana amfani da m polyvinyl chloride a cikin ginin bututu, kofofi da tagogi. Hakanan ana amfani dashi don yin kwalabe na filastik, marufi, banki ko katin zama membobinsu. Ƙara kayan aikin filastik yana sa PVC ya fi laushi kuma ya fi na roba. Ana iya amfani da shi a cikin bututu, rufin USB, shimfidar ƙasa, sigina, rikodin phonograph, samfuran inflatable da sauran roba.
stabilizer:
Saboda guduro PVC guduro ne mai zafin zafi, yana fara raguwa da zafi lokacin da zafin jiki ya kai kusan 90 zuwa 130 ° C, yana sakin HCL mara ƙarfi kuma yana haifar da guduro ya juya launin rawaya. Yayin da zafin jiki ya tashi, launi na guduro ya zama duhu kuma kayan jiki & sinadarai na samfurin suna raguwa. Baya ga inganta tsarin samar da albarkatun guduro, warware matsalar lalacewa galibi ya haɗa da ƙara masu daidaitawa zuwa guduro na PVC don ɗaukar da kawar da iskar gas na HCL da kawar da tasirin lalatawar sa. Tsarukan daidaitawa da aka saba amfani da su sun haɗa da: gishirin gubar, organotin, sabulun ƙarfe da na'urorin da ba kasafai ba.
Man shafawa (PE wax ko Paraffin):
Ɗayan nau'i na ƙari don inganta lubricity da rage mannewar dubawa. Dangane da ayyuka, an raba su zuwa lubricants na waje, lubricants na ciki da na ciki & na waje. Man shafawa na waje na iya rage juzu'i tsakanin kayan da saman ƙarfe don hana kayan UPVC daga mannewa ganga da dunƙule bayan filastik. Man shafawa na ciki zai iya rage juzu'i tsakanin barbashi a cikin kayan, raunana haɗin kai tsakanin kwayoyin halitta kuma rage dankowar narkewa. Yin amfani da man shafawa yana da tasiri mai mahimmanci akan rage nauyin kullun, rage zafi mai zafi, da haɓaka fitarwa. Zane na mai mai a cikin tsari yana da matukar muhimmanci.
Kayan cikawa:
Domin inganta taurin da rigidity na kayayyakin, rage samfurin nakasawa, da kuma rage albarkatun kasa farashin, fillers kamar CaCO 3 ana sau da yawa ƙara da samar da UPVC kayayyakin.
Mai Gyaran Gudanarwa (ACR):
Babban maƙasudin shine don haɓaka aikin sarrafa kayan, haɓaka filastik na guduro na PVC, da haɓaka haɓakar ruwa, nakasar thermal da ƙyalli na samfuran.
Mai gyara tasiri:
Babban maƙasudin shine haɓaka juriya na samfuran, haɓaka ƙarfin samfuran, da haɓaka tasirin filastik. Abubuwan da aka saba amfani da su don UPVC sune CPE (chlorinated polyethylene) da gyaran tasirin tasirin acrylate.
The plasticizing inji na filastik extrusion kayan aiki da kuma tasirin dabara sinadaran a kai:
Akwai kayan aiki da yawa don gyare-gyaren filastik extrusion. Babban waɗanda ake amfani da su don fitar da samfuran UPVC masu wuya sune masu jujjuyawar tagwayen dunƙuleconical twin dunƙule extruder. Abubuwan da ke biyo baya suna tattauna tsarin filastik na yawan amfani da extruders don fitar da samfuran UPVC.
Mai jujjuya juzu'i mai jujjuyawa tagwaye-screw extruder:
Lokacin aikawa: Dec-29-2023
