Izinhlanganisela ezilukiwe ezingu-3d zakhiwe ngokuluka izingxenye ezomile ezakhiwe ngaphambili kusetshenziswa ubuchwepheshe bendwangu.Izingxenye ezomile ezenziwe ngaphambili zisetshenziswa njengokuqinisa, futhi inqubo yokubumba yokudlulisa i-resin (RTM) noma inqubo ye-resin membrane infiltration (RFI) isetshenziselwa ukukhulelwa nokwelapha, ukwakha ngqo isakhiwo esiyinhlanganisela.Njengempahla ehlanganisiwe ethuthukisiwe, isibe yinto ebalulekile yesakhiwo emkhakheni wezokundiza kanye ne-aerospace, futhi isetshenziswe kabanzi emikhakheni yezimoto, imikhumbi, ukwakhiwa, izimpahla zezemidlalo kanye nezinsimbi zezokwelapha.Ithiyori yendabuko yama-laminates ayinhlanganisela ayikwazi ukuhlangabezana nokuhlaziywa kwezakhiwo zemishini, ngakho-ke izazi zasekhaya nakwamanye amazwe ziye zasungula ithiyori entsha nezindlela zokuhlaziya.
Inhlanganisela elukiwe enezinhlangothi ezintathu ingenye yezinto eziyinhlanganisela ezilukiwe ezilingiswayo, eziqiniswa indwangu eboshwe ngefayibha (eyaziwa nangokuthi izingxenye ezintathu-ntathu ezakhiwe ngaphambilini) ezilukwe ubuchwepheshe obulukiwe.Inamandla athile aphezulu, i-modulus ethize, ukubekezelela ukulimala okuphezulu, ukuqina kokuphuka, ukumelana nomthelela, ukumelana nokuqhekeka nokukhathala nezinye izici ezinhle kakhulu.
Ukuthuthukiswa kwezinhlanganisela ezilukiwe ezi-THREE-DIMENSIONAL kungenxa yamandla aphansi e-interlaminar e-shear kanye nokumelana nomthelela ongemuhle wezinto eziyinhlanganisela ezenziwe ngezinto eziqiniswayo ze-unidirectional noma ezimbili-directional, ezingakwazi ukusetshenziswa njengezingxenye ezithwala umthwalo oyinhloko.U-LR Sanders wethula ubuchwepheshe obulukiwe obunezinhlangothi ezintathu esicelweni sobunjiniyela ngo-977. Lokho okubizwa ngobuchwepheshe obuboshwe nge-3D kuyisakhiwo esiphelele esingathungi esinezinhlangothi ezintathu esitholakala ngokuhlelwa kwemicu emide nefushane emkhathini ngokwemithetho ethile nokuxhumanisa. komunye nomunye, okuqeda inkinga ye-interlayer futhi kuthuthukisa kakhulu ukumelana nokulimala kwezinto ezihlanganisiwe.Ingakwazi ukukhiqiza zonke izinhlobo zokuma okujwayelekile kanye nomzimba oqinile omise okukhethekile, futhi yenze isakhiwo sibe nemisebenzi eminingi, okungukuthi, ukuluka ilungu elibalulekile le-multilayer.Njengamanje, kunezindlela ezingaphezu kuka-20 zokuluka izinhlangothi ezintathu, kodwa kunezine ezivame ukusetshenziswa, okungukuthi ukuluka ezindaweni ezibucayi.
ukwaluka), ukwaluka okudiagonal (i-diagonalbraiding noma ukupakisha
ukuluka), ukuluka intambo ye-orthogonal (ukuluka kwe-orthogonal), kanye nokuluka i-warp interlock.Kunezinhlobo eziningi zokuluka kwe-THREE-DIMENSIONAL, njengokuluka kwezinyathelo ezintathu-ntathu, ukuluka okunezinhlangothi ezintathu nokuluka kwezinyathelo ezintathu eziningi.
Izici zenqubo ye-RTM
Isiqondiso esibalulekile sokuthuthukiswa kwenqubo ye-RTM ukubumba okubalulekile kwezingxenye ezinkulu.I-VARTM, LIGHT-RTM kanye ne-SCRIMP yizinqubo ezimele.Ucwaningo kanye nokusetshenziswa kwamasu e-RTM kuhilela imikhakha eminingi nobuchwepheshe, okungenye yezinkambu zocwaningo ezisebenza kakhulu zezinhlanganisela emhlabeni.Izithakazelo zakhe zocwaningo zihlanganisa: ukulungiselela, i-kinetics yamakhemikhali kanye nezakhiwo ze-rheological zezinhlelo ze-resin ezine-viscosity ephansi nokusebenza okuphezulu;Ukulungiselela kanye nezici zokungena kwe-fiber preform;Ubuchwepheshe bokulingiswa kwekhompyutha benqubo yokubumba;Ubuchwepheshe bokuqapha ku-inthanethi benqubo yokwenza;Ubuchwepheshe bokuklama isikhunta;Ukuthuthukiswa kwedivayisi entsha ene-ejenti ekhethekile ye-In vivo;Amasu okuhlaziya izindleko, njll.
Ngokusebenza kwayo okuhle kakhulu kwenqubo, i-RTM isetshenziswa kabanzi emikhunjini, ezikhungweni zezempi, kwezobunjiniyela bezokuvikela kazwelonke, ezokuthutha, i-aerospace kanye nezimboni zomphakathi.Izici zayo eziyinhloko zimi kanje:
(1) Ukuguquguquka okuqinile ekukhiqizeni isikhunta nokukhethwa kwezinto ezibonakalayo, ngokwezilinganiso ezihlukene zokukhiqiza,
Ukushintshwa kwemishini nakho kuguquguquka kakhulu, ukukhishwa kwemikhiqizo phakathi kwezingcezu eziyi-1000 ~ 20000/ngonyaka.
(2) Ingakwazi ukwenza izingxenye eziyinkimbinkimbi ezinekhwalithi enhle yendawo kanye nokunemba okuphezulu kobukhulu, futhi inezinzuzo ezisobala kakhulu ekukhiqizeni izingxenye ezinkulu.
(3) Kulula ukubona ukuqiniswa kwendawo kanye nesakhiwo sesemishi;Ukulungiswa okuguquguqukayo kwamakilasi wezinto zokuqinisa
Uhlobo nesakhiwo esiklanyelwe ukuhlangabezana nezimfuneko zokusebenza ezihlukene kusukela ezimbonini zomphakathi kuya ezimbonini zezindiza.
(4) Okuqukethwe kwe-fiber kufika ku-60%.
(5) Inqubo yokubumba ye-RTM ingeyenqubo yokusebenza kwesikhunta esivaliwe, esinendawo yokusebenza ehlanzekile kanye nokukhishwa okuphansi kwe-styrene phakathi nenqubo yokubumba.
(6) Inqubo yokubumba ye-RTM inezidingo eziqinile ohlelweni lwezinto ezingavuthiwe, ezidinga ukuthi izinto eziqinisiwe zibe nokumelana okuhle nokugeleza kwe-resin nokungena.Kudinga i-resin ukuthi ibe ne-viscosity ephansi, ukusebenza kabusha okuphezulu, ukuphulukiswa kwezinga lokushisa eliphakathi, inani eliphakeme eliphansi le-exothermic lokuphulukisa, i-viscosity encane enqubweni yokucwilisa, futhi ingageleza ngokushesha ngemva komjovo.
(7) Umjovo wengcindezi ephansi, ingcindezi yomjovo jikelele <30psi(1PSI =68.95Pa), ingasebenzisa isikhunta se-FRP (okuhlanganisa isikhunta se-epoxy, isikhunta se-FRP surface electroforming nickel, njll.), izinga eliphezulu lenkululeko yokuklama isikhunta, izindleko zokubumba ziphansi .
(8) I-porosity yemikhiqizo iphansi.Uma kuqhathaniswa nenqubo yokubumba ye-prepreg, inqubo ye-RTM ayidingi ukulungiswa, ukuthuthwa, ukugcinwa kanye nokuqandisa kwe-prepreg, akukho ukufakwa kwe-manuwali okuyinkimbinkimbi kanye nenqubo yokucindezela isikhwama se-vacuum, futhi asikho isikhathi sokwelashwa kokushisa, ngakho-ke ukusebenza kulula.
Kodwa-ke, inqubo ye-RTM ingathinta kakhulu izakhiwo zomkhiqizo wokugcina ngoba i-resin ne-fiber ingabunjwa ngokufakwa endaweni yokubumba, futhi ukugeleza kwe-fiber emgodini, inqubo yokukhulelwa kanye nenqubo yokuphulukisa ye-resin ingathinta kakhulu izakhiwo zomkhiqizo wokugcina, ngaleyo ndlela zandise ubunkimbinkimbi nokungalawuleki kwenqubo.
Isikhathi sokuthumela: Dec-31-2021