izindaba

Ngenxa yokuthi i-viscosity ye-ultra-high molecular weight polyethylene (UHMW-PE) esimweni esincibilikisiwe iphezulu njengo-108Pa*s, uketshezi lubi ngokwedlulele, futhi inkomba yayo yokuncibilika icishe ibe yiziro, kunzima ukucutshungulwa ngezindlela zomshini ezijwayelekile. .Ubuchwepheshe bokucubungula i-Ultrahigh molecular weight polyethylene (UHMW-PE) buye bathuthukiswa ngokushesha, ngokuguqulwa kwemishini evamile yokucubungula, yenze i-ultrahigh molecular weight polyethylene (UHMW-PE) kusukela ekucindezelweni kokuqala - ukuthuthukiswa kokubumba kwe-sintering kuya ku-extrusion, ukubumba ukuqhuma kanye nomjovo. ukubumba nezinye izindlela ezikhethekile zokubumba.
Indlela ejwayelekile
1. Ukucindezela nokucwilisa
(1) Ukucindezela kanye ne-sintering kuyindlela yokuqala yokucubungula ye-ultra-high molecular weight polyethylene (UHMW-PE).Ukusebenza kahle kokukhiqiza kwale ndlela kuphansi kakhulu, futhi kulula ukwenzeka i-oxidation nokuwohloka.Ukuze kuthuthukiswe ukusebenza kahle kokukhiqiza, ukushisa okuqondile kukagesi kungasetshenziswa
(2) Indlela yokucubungula i-Ultra-high speed fusion, usebenzisa i-blade type mixer, isivinini esiphezulu sokujikeleza kwe-blade singafinyelela ku-150m / s, ukuze impahla ikhuphukele ekusetshenzisweni kokushisa ngemizuzwana embalwa kuphela.
2. Ukubunjwa kwe-Extrusion
Imishini yokubumba i-Extrusion ikakhulukazi ihlanganisa i-plunger extruder, i-screw extruder eyodwa kanye ne-twin screw extruder.I-Twin-screw extruder isetshenziswa kakhulu ohlangothini olufanayo oluzungeza i-twin-screw extruder.
Ngawo-1960, iningi le-plunger extruder lalisetshenziswa.Maphakathi nawo-1970s, i-Japan, i-United States kanye ne-West Germany ngokulandelana kwazo zathuthukisa inqubo yokukhipha isikulufu esisodwa.I-Mitsui Petrochemical Company yaseJapane yaqala ukuzuza impumelelo yobuchwepheshe bokukhipha induku eyindilinga ngo-1974. Ekupheleni kuka-1994, uhlobo lwe-φ45 lwe-ultra-high molecular weight polyethylene (UHMW-PE) olukhethekile lwe-screw extruder yasungulwa, futhi impumelelo yohlobo olulodwa lwe-φ65 Ulayini wokukhiqiza wezimboni wesikulufa we-screw extruder wafinyelelwa ngo-1997.
(3) Ukubumba umjovo
IMitsui Petrochemicals yathuthukisa inqubo yokubumba umjovo ngo-1974 futhi yathengiswa ngayo ngo-1976, yalandelwa ukubunjwa komjovo wesikulufa.Ngo-1985, u-Hoechst wabuye wabona inqubo yokubumba umjovo wesikulufa ye-UHMW-PE.Ngo-1983, umshini wasekhaya we-XS-ZY-125A washintshwa.Isondo elisekelayo le-polyethylene ye-molecular ephezulu kakhulu (UHMW-PE) kanye nomkhono we-asi wepompo lamanzi lomugqa wokukhiqiza ubhontshisi kabhiya bajovwe ngempumelelo.Ngo-1985, ijoyinti lokwenziwa lokusetshenziswa kwezokwelapha nalo lajovwa ngempumelelo.
(4) ukubumba igalelo
I-Ultra-high molecular weight polyethylene (UHMW-PE) icutshungulwa, lapho i-extrusion evela emlonyeni ifa, ngenxa yokululama okunwebekayo kanye nokuncipha okuthile, futhi cishe akukho okwenzekayo okugoqayo, izitsha ezingenalutho, ikakhulukazi iziqukathi ezinkulu, njengethangi likawoyela, ukubumba i-drum blow ukuze udale izimo ezivumayo.I-Ultrahigh molecular weight polyethylene (UHMW-PE) blow molding ingaholela futhi kufilimu yokusebenza okuphezulu enamandla alinganiselayo ekuqondeni okuqondile nokuvundlile, okuxazulula inkinga yokuthi amandla efilimu ye-HDPE awahambisani ekuqondeni okuqondile nokuvundlile kwe- isikhathi eside futhi kulula ukubangela umonakalo longitudinal.