Kuumba pulasitiki ndiukadaulo waukadaulo womwe umaphatikizapo njira zosiyanasiyana zosinthira mapulasitiki kukhala zinthu zapulasitiki. Panthawi ya kusinthaku, chimodzi kapena zingapo zotsatirazi zimachitika: kusintha kwa polymer rheology ndi thupi ndi mankhwala.
Compression Molding
Chida chachikulu chopangira psinjika ndi chosindikizira ndi nkhungu. Makina osindikizira omwe amagwiritsidwa ntchito kwambiri ndi makina osindikizira omwe amakhalapo okha, -okhala ndi ma hydraulic, kuyambira matani khumi mpaka mazana a matani. Pali zopondereza zapansi{{3}ndi zopondereza zapamwamba-zapamwamba. Chikombole chomwe chimagwiritsidwa ntchito popanikizana chimatchedwa compression mold, chomwe chimagawidwa m'magulu atatu: ma molds osefukira, semi-zosefukira, ndi{7}}zosasefukira. Ubwino waukulu wa psinjika akamaumba ndi kuti akhoza kuumba mankhwala ndi lalikulu lathyathyathya pamalo ndipo akhoza kutulutsa zambiri. Zoyipa zake ndizopanga nthawi yayitali komanso kutsika kwachangu.
Jekeseni Kumangira
Kujambula kwa lamination nthawi zambiri kumagwiritsa ntchito makina osindikizira. Makina osindikizira amtunduwu amakhala ndi mbale zingapo zoyandama zoyandama pakati pa mbale zoyenda ndi zoyima. Zida zolimbikitsira zomwe zimagwiritsidwa ntchito nthawi zambiri pakuumba lamination zimaphatikizapo nsalu za thonje, nsalu zamagalasi, mapepala, ndi nsalu zaasibesitosi. Ma resins amaphatikizapo ma phenolic resins, epoxy resins, unsaturated polyester resins, ndi zina za thermoplastic resins. Kumangirira jekeseni, kupopera mbewu mankhwalawa, kupopera mbewu mankhwalawa ndi electrostatic, kupopera mbewu mankhwalawa ndi madzi otentha, kupopera mbewu mankhwalawa ndi filimu, kupaka filimu, kusungunula kotentha.
Extrusion Molding
Extrusion akamaumba, amatchedwanso extrusion akamaumba kapena extrusion, ndi njira kupanga zipangizo mosalekeza kudzera kufa mu oyenda boma ndi kutentha ndi pressurizing iwo mu extruder. Extrusion imagwiritsidwa ntchito kwambiri popanga ma thermoplastics, koma imatha kugwiritsidwanso ntchito pamapulasitiki ena a thermosetting. Zogulitsa zowonjezera ndizopitilira mbiri, monga mapaipi, ndodo, filaments, mafilimu, ndi waya ndi chingwe. Kuphatikiza apo, itha kugwiritsidwa ntchito kusanganikirana kwa pulasitiki, granulation, utoto, ndi kusakaniza. Makina opangira ma extrusion amakhala ndi zida zowonjezera, njira yotumizira, ndi makina otenthetsera ndi ozizira. Zotulutsa zimabwera m'mitundu iwiri: screw type (single screw and multi-screw) ndi plunger type. Yoyamba ndi njira yowonjezera yowonjezera, pamene yotsirizirayi ndi yapakati. Kapangidwe kake ka single-scruder extruder makamaka imaphatikizapo cholumikizira, chipangizo choyatsira, mbiya, screw, die head, ndi kufa. Zipangizo zothandizira zowonjezera zimagwera m'magulu atatu: zida zopangira zinthu (monga zotengera ndi zowumitsa), zida zopangira ma extrudate (zojambula, zoziziritsa, zokoka, kudula, kapena kugudubuza), ndi zida zowongolera momwe zinthu ziliri.
Kujambula kwa pultrusion
Pultrusion ndi imodzi mwa njira zomangira zopangira ma thermosetting fiber-mapulasitiki olimba. Amagwiritsidwa ntchito popanga mbiri yokhala ndi mtanda wokhazikika-ndi utali wopanda malire. Kuumba kwake kumaphatikizapo kujambula utomoni wopitirira womwe umalowetsedwa ndi utomoni kudzera mumoto wotenthedwa, ndiyeno kuchiritsa utotowo muchipinda chotenthetsera kuti upangitse unidirectional wapamwamba{4}}wamphamvu mosalekeza.
Ma resin omwe amagwiritsidwa ntchito kwambiri popanga pultrusion amaphatikiza poliyesitala wosaturated, epoxy, ndi silikoni. Unsaturated polyester resin ndi omwe amagwiritsidwa ntchito kwambiri. Makina opangira ma pultrusion nthawi zambiri amakhala ndi chipangizo chopangira utomoni, thanki ya utomoni, chipangizo chopangira zinthu, chida chakufa ndi chotenthetsera, chida chokokera, ndi zida zodulira.
