Zophatikizira zolukidwa za 3d zimapangidwa ndi kuluka zida zowuma zowuma pogwiritsa ntchito ukadaulo wa nsalu.Ziwalo zowuma zowuma zimagwiritsidwa ntchito ngati kulimbikitsa, ndipo njira yopangira utomoni (RTM) kapena njira yolowera utomoni (RFI) imagwiritsidwa ntchito kuyika ndi kuchiritsa, kupanga mwachindunji kapangidwe kake.Monga zida zapamwamba zophatikizika, zakhala zofunikira zomangira m'munda wa ndege ndi zakuthambo, ndipo zakhala zikugwiritsidwa ntchito kwambiri pamagalimoto, zombo, zomangamanga, katundu wamasewera ndi zida zamankhwala.Chiphunzitso cha chikhalidwe cha laminates gulu sangathe kukumana ndi makina katundu kusanthula, kotero akatswiri kunyumba ndi kunja akhazikitsa chiphunzitso ndi kusanthula njira zatsopano.
Chophatikizika chamitundu itatu ndi chimodzi mwazinthu zomwe zimatsatiridwa, zomwe zimalimbikitsidwa ndi nsalu yoluka (yomwe imadziwikanso kuti magawo atatu azithunzithunzi) yolukidwa ndiukadaulo woluka.Ili ndi mphamvu zenizeni zenizeni, modulus yeniyeni, kulolerana kwakukulu, kulimba kwa fracture, kukana kukhudzidwa, kukana ming'alu ndi kutopa ndi zina zabwino kwambiri.
Kukula kwamagulu opangidwa ndi THREE-DIMENSIONAL yoluka ndi chifukwa cha kutsika kwamphamvu kwa kukameta ubweya wa interlaminar komanso kukana kwapang'onopang'ono kwa zida zophatikizika zopangidwa kuchokera ku unidirectional kapena bi-directional reinforcement zida, zomwe sizingagwiritsidwe ntchito ngati zigawo zazikulu zonyamula katundu.LR Sanders adayambitsa ukadaulo woluka wamitundu itatu muukadaulo wogwiritsa ntchito mu 977. Chomwe chimatchedwa ukadaulo woluka wa 3D ndi mawonekedwe athunthu osasunthika osasunthika omwe amapezeka kudzera pakukonza ulusi wautali komanso waufupi mumlengalenga molingana ndi malamulo ena ndi kulumikizana. wina ndi mzake, zomwe zimathetsa vuto la interlayer ndi bwino kwambiri kukana kuwonongeka kwa gulu.Ikhoza kutulutsa mitundu yonse ya mawonekedwe okhazikika komanso thupi lolimba lopangidwa mwapadera, ndikupanga kapangidwe kake kukhala ndi ntchito zambiri, ndiko kuti, kuluka membala wamitundu yambiri.Pakali pano, pali njira zoposa 20 zoluka nsalu za mbali zitatu, koma pali zinayi zomwe zimagwiritsidwa ntchito mofala, zomwe ndi kuluka ku polar.
kuluka), kuluka kwa diagonal (kuluka kapena kunyamula
kuluka), kuluka ulusi wa orthogonal (kuluka kwa orthogonal), ndi kuluka kopingasa.Pali mitundu yambiri ya kuluka kwa THREE-DIMENSIONAL, monga masitepe awiri okuluka adimensional atatu, masitepe anayi amalukidwe atatu-dimensional ndi masitepe angapo amatatu atatu.
Zotsatira za RTM
Njira yofunikira yachitukuko cha njira ya RTM ndikumangirira kofunikira kwa zigawo zazikulu.VARTM, LIGHT-RTM ndi SCRIMP ndi njira zoyimira.Kufufuza ndi kugwiritsa ntchito njira za RTM kumaphatikizapo maphunziro ndi matekinoloje ambiri, omwe ndi amodzi mwa magawo omwe amafufuza kwambiri padziko lonse lapansi.Zokonda zake za kafukufuku zikuphatikizapo: kukonzekera, mankhwala kinetics ndi rheological katundu wa utomoni kachitidwe ndi otsika mamasukidwe akayendedwe ndi mkulu ntchito;Kukonzekera ndi permeability makhalidwe CHIKWANGWANI preform;Kompyuta kayeseleledwe luso akamaumba ndondomeko;Tekinoloje yowunikira pa intaneti yopanga njira;Kukhathamiritsa nkhungu kapangidwe luso;Kupanga chipangizo chatsopano ndi wothandizira wapadera Mu vivo;Njira zowunikira mtengo, etc.
Ndi ntchito yake yabwino kwambiri, RTM imagwiritsidwa ntchito kwambiri m'zombo, zida zankhondo, uinjiniya wachitetezo cha dziko, mayendedwe, mlengalenga ndi mafakitale aboma.Makhalidwe ake akuluakulu ndi awa:
(1) Kusinthasintha kwamphamvu pakupanga nkhungu ndikusankha zinthu, malinga ndi masikelo osiyanasiyana opanga,
Kusintha kwa zida kumakhalanso kosavuta, kutulutsa kwazinthu pakati pa 1000 ~ 20000 zidutswa / chaka.
(2) Ikhoza kupanga ziwalo zovuta ndi khalidwe labwino pamwamba ndi kulondola kwapamwamba, ndipo zimakhala ndi ubwino wodziwikiratu popanga zigawo zazikulu.
(3) Zosavuta kuzindikira kulimbitsa kwanuko komanso kapangidwe ka masangweji;Kusintha kosinthika kwa makalasi azinthu zowonjezera
Mtundu ndi mawonekedwe opangidwa kuti akwaniritse zofunikira zosiyanasiyana zogwirira ntchito kuchokera kumafakitale amtundu wa anthu mpaka azamlengalenga.
(4) Zomwe zili ndi fiber mpaka 60%.
(5) Njira yopangira RTM ndi ya njira yotsekedwa ya nkhungu, yokhala ndi malo ogwirira ntchito oyera komanso otsika otsika a styrene panthawi yakuumba.
(6) RTM akamaumba ndondomeko ali ndi zofunika okhwima pa dongosolo laiwisi, zomwe zimafuna zinthu analimbitsa kukhala kukana zabwino utomoni otaya scour ndi kulowa mkati.Pamafunika utomoni kukhala ndi kukhuthala kochepa, reactivity mkulu, kutentha sing'anga kutentha, otsika exothermic nsonga ya machiritso, kukhuthala kochepa mu leaching ndondomeko, ndipo gel osakaniza mwamsanga pambuyo jekeseni.
(7) jekeseni wapansi, kuthamanga kwa jekeseni <30psi(1PSI = 68.95Pa), angagwiritse ntchito nkhungu ya FRP (kuphatikizapo epoxy nkhungu, FRP pamwamba electroforming nickel mold, etc.), mkulu mlingo wa ufulu wa mapangidwe nkhungu, mtengo wa nkhungu ndi wotsika kwambiri. .
(8) The porosity wa mankhwala ndi otsika.Poyerekeza ndi prepreg akamaumba ndondomeko, RTM ndondomeko amafuna palibe kukonzekera, mayendedwe, kusungirako ndi kuzizira prepreg, palibe zovuta Buku layering ndi zingalowe thumba kukanikiza ndondomeko, ndipo palibe kutentha kutentha nthawi, kotero ntchito ndi yosavuta.
Komabe, njira ya RTM imatha kukhudza kwambiri mawonekedwe a chinthu chomaliza chifukwa utomoni ndi CHIKWANGWANI zimatha kuumbidwa kudzera munjira yopangira utomoni, komanso kutuluka kwa fiber mumtsempha, njira yopangira impregnation ndi kuchiritsa kwa utomoni kumatha kukhudza kwambiri katundu wa mankhwala omaliza, motero kuonjezera zovuta ndi zosalamulirika za ndondomekoyi.
Nthawi yotumiza: Dec-31-2021