Inqubo ye-HP-RTM

1. Isingeniso senqubo ye-HP-RTM

I-HP-RTM (High Pressure Resin Transfer Molding) isifinyezo senqubo yokubumba yokudlulisa i-resin enengcindezi ephezulu. Kuwubuchwepheshe bokubumba obuthuthukisiwe obusebenzisa ingcindezi ephezulu yokuxuba nokujova inhlaka esikhunjini esivalwe nge-vacuum esibekwe ngaphambili ngezinto eziqiniswe nge-fiber kanye nokufaka okusethwe ngaphambilini. I-resin igeleza ngokugcwaliswa kwesikhunta, ukumiliselwa, ukuphulukiswa nokudilizwa. , ukuthola inqubo yokubumba yokusebenza okuphezulu nokunemba okuphezulu kwemikhiqizo eyinhlanganisela. Inezinzuzo zokusebenza kahle okuphezulu, ukonga amandla, nokuvikelwa kwemvelo, futhi isetshenziswe kabanzi ezimotweni, emkhathini, kwezobuchwepheshe nakweminye imikhakha.

Inqubo iboniswa kuMfanekiso 1:

Umfanekiso 1 Umdwebo wohlelo lomgomo wenqubo ye-HP-PTM

2. Izici zenqubo ye-HP-RTM

I-HP-RTM ihlanganisa ukucutshungulwa kwe-preform, umjovo we-resin, inqubo yokucindezela kanye nenqubo yokunquma. Uma kuqhathaniswa nenqubo yendabuko ye-RTM, inqubo ye-HP-RTM yandisa inqubo yokucindezela ngemva komjovo, inciphisa ubunzima bomjovo we-resin nokugcwaliswa, ithuthukisa ikhwalithi yokufakwa kwe-preforms, futhi ifinyeze umjikelezo wokubumba. Izici zenqubo ethile zimi kanje:

(1) Ukugcwaliswa kwesikhunta ngokushesha. I-resin igcwalisa ngokushesha isikhunta sesikhunta, inomphumela omuhle wokungena, inciphisa kakhulu ama-bubbles kanye ne-porosity, futhi i-low-viscosity resin ikhulisa kakhulu ijubane lomjovo we-resin futhi ifinyeza umjikelezo wenqubo yokubumba.

(2) I-resin esebenzayo kakhulu. Izinga lokuphendula lokwelapha i-resin liyakhuphuka futhi umjikelezo wokwelapha we-resin uyafinyezwa. Yamukela isistimu ye-resin esebenza ngokushesha ephulukisa ngokushesha futhi isebenzisa ukuxuba okuphezulu kwengcindezi ephezulu kanye nemishini yomjovo ukuze kuzuzwe ukufana okungcono kokuxuba kwe-resin matrix. Ngesikhathi esifanayo, indawo yokushisa ephezulu iyadingeka ngesikhathi sokubunjwa, okuthuthukisa kakhulu izinga lokuphendula lokuphulukisa le-resin, lifinyeze umjikelezo wokukhiqiza, futhi lizinze inqubo. Ukuzinza okuphezulu nokuphindaphinda,

(3) Sebenzisa i-ejenti yokukhulula yangaphakathi kanye nesistimu yokuzihlanza ukuze uthuthukise ukusebenza kahle kokuhlanza kwezinto zokusebenza. Ubuchwepheshe bokuzihlanza kwekhanda lokuxuba umjovo lusetshenziswa, futhi ingxenye ye-ejenti yokukhululwa yangaphakathi yengezwe ezintweni eziluhlaza ukuze kuthuthukiswe ngempumelelo ukuhlanza kwemishini. Ngesikhathi esifanayo, umphumela ongaphezulu womkhiqizo muhle kakhulu, futhi ukujiya nokuphambuka komumo kuncane. Finyelela izindleko eziphansi, umjikelezo omfushane (umthamo omkhulu), ukukhiqizwa kwekhwalithi ephezulu.

(4) Sebenzisa i-in-mold vacuum technology esheshayo. Okuqukethwe kwe-pore ezingxenyeni kuyancishiswa futhi ukusebenza kwezingxenye kuyathuthukiswa. Yehlisa ngempumelelo okuqukethwe kwe-pore emkhiqizweni, ithuthukise ukusebenza kahle kwe-fiber impregnation, ithuthukisa ikhono lokuxhumanisa phakathi kwe-fiber ne-resin, futhi ithuthukisa ikhwalithi yomkhiqizo.

(5) Ukuhlanganisa i-vacuum nenqubo yokubumba yokucindezelwa ngemva komjovo. Ubunzima benqubo yezingxenye buncishisiwe futhi ikhwalithi yezinto eziqinisiwe ze-resin-impregnated ziyathuthukiswa. Yehlisa ubunzima bokuklama imbobo yomjovo weglue kanye nembobo yokukhipha umoya yenqubo ye-RTM, ithuthukisa umthamo wokugcwalisa ukugeleza kwe-resin, kanye nekhwalithi yokungena kwe-fiber nge-resin.

(6) Sebenzisa izindawo eziqinile ezikabili ukuvala isikhunta, futhi usebenzise umshini wokucindezela we-hydraulic onamathani amakhulu ukuze ucindezeleke. Umkhiqizo unokuchezuka okuphansi kokujiya kanye nokuma kwezinhlangothi ezintathu. Ukuze kuqinisekiswe umphumela wokuvala isikhunta, izindawo eziphindwe kabili eziqinile zisetshenziselwa ukuvala isikhunta, futhi umshini wokucindezela omkhulu we-hydraulic we-tonnage usetshenziselwa ukucindezela, okwandisa amandla okubamba ngesikhathi sokubumba futhi kunciphisa ngempumelelo ukujiya nokuchezuka komumo. wezingxenye.

(7) Umkhiqizo unezindawo ezinhle kakhulu ezingaphezulu nekhwalithi. Ngokusebenzisa ubuchwepheshe bokufafaza obungaphakathi kwesikhunta kanye nokubunjwa okucwebezelayo okuphezulu, izingxenye zingathola ikhwalithi ebonakala ngokunemba okuphezulu ngesikhathi esifushane kakhulu.

(8) Inokuqina kwenqubo ephezulu kanye nokuphindaphinda. Ukusetshenziswa komjovo wegebe kanye nobuchwepheshe bokucindezelwa kwangemva komjovo kuthuthukisa kakhulu umthamo wokugeleza kokugcwalisa isikhunta we-resin, kunciphisa ngempumelelo amathuba okuba nokukhubazeka kwenqubo, futhi kunokuphindaphinda kwenqubo ephezulu.

3. Ubuchwepheshe benqubo esemqoka

(1) Ubuchwepheshe bokwakha kwangaphambili bezinto eziqinisiwe zefiber

Ubuchwepheshe be-fiber preforming ikakhulukazi buhlanganisa: izindwangu, ukunitha kanye ne-braiding preforms; ukuthunga ama-preforms; oqoshiwe fibre umjovo preforms; ama-preforms okucindezela okushisayo, njll. Phakathi kwawo, ubuchwepheshe bokubumba obucindezelayo busetshenziswa kakhulu. Kulobu buchwepheshe, i-ejenti yokubumba iyisiqinisekiso esiyisisekelo, futhi isikhunta se-fiber preforming kanye nobuchwepheshe bokucindezela kuyisihluthulelo sokubunjwa kwefayibha. Ngenqubo ye-HP-RTM, isakhiwo sengxenye silula, ngakho-ke isikhunta sokubumba sibuye silula. Isihluthulelo siwukuthi ungalawula kanjani isikhunta sokubumba kanye namathuluzi okucindezelayo ukuze ucindezele futhi uhleleke ngempumelelo nangokuhlelekile ngokusebenzisa izinqubo zokuklama nokulawula.

(2) Ukulinganisa okuphezulu kwe-resin metering, ukuxuba kanye nobuchwepheshe bomjovo

Ukuxuba kanye nomjovo we-HP-RTM inqubo resin ikakhulukazi ihlanganisa izinhlelo ezimbili: resin main material kanye in-in-isikhunta spray resin. Isihluthulelo sokulawula kwayo sisekuhlelweni okuphezulu kwe-resin metering system, ubuchwepheshe bokuxuba obusheshayo nobufanayo kanye nobuchwepheshe bokuxuba imishini yokuzihlanza. I-HP-RTM yenqubo ye-resin main material idinga ukukalwa ngokunembile ngaphansi kwezinga lokushisa eliphezulu nokucindezela okuphezulu, okudinga imishini yephampu yemitha enembayo. Ukuxuba okulinganayo kanye nokuzihlanza kwe-resin kudinga ukuklanywa kwekhanda elisebenzayo, elizihlanzayo, elixube kaningi.

(3) Ukubumba izinga lokushisa kwesikhunta ukufana kwensimu kanye nomklamo wokubeka uphawu

Ngesikhathi senqubo ye-HP-RTM, ukufana kwenkambu yokushisa yesikhunta sokubumba akugcini nje ukunquma futhi kuthinte ukusebenza kokugeleza nokugcwalisa kwe-resin emgodini wokubunjwa, kodwa futhi kunomthelela omkhulu ekusebenzeni kokungena kwe-fiber, ukusebenza okuphelele. wezinto eziyinhlanganisela, kanye nengcindezi yangaphakathi yomkhiqizo. . Ngakho-ke, kuyadingeka ukusebenzisa ukushisa okuphakathi kuhlanganiswe nomklamo wesifunda sawoyela osebenza kahle futhi onengqondo. Ukusebenza kokubeka uphawu kwesikhunta kunquma ngokuqondile ukugeleza kwe-resin nezici zokugcwalisa isikhunta, kanye nekhono lokuphuma lenqubo yokubumba. Kuyisixhumanisi esiyinhloko esithinta ukusebenza komkhiqizo. Kuyadingeka ukuklama isikhundla, indlela kanye nenani lokuvala izindandatho ngokusho komkhiqizo. Ngesikhathi esifanayo, kuyadingeka ukuxazulula izinkinga zokuvala igebe lokufaka isikhunta, uhlelo lwe-ejection, uhlelo lwe-vacuum nezinye izikhundla ukuze kuqinisekiswe ukuthi akukho ukuvuza komoya phakathi nenqubo yokugcwalisa i-resin ukuze kuqinisekiswe ukusebenza kwengxenye.

(4) Umshini wokucindezela we-hydraulic onembayo nobuchwepheshe bawo bokulawula

Enqubweni ye-HP-RTM, ukulawulwa kwegebe lokuvala isikhunta enqubweni yokugcwalisa i-resin kanye nokulawulwa kwengcindezi enqubweni yokucindezela konke kudinga isiqinisekiso sohlelo lokucindezela olusebenza kahle nolunembayo lwe-hydraulic. Ngesikhathi esifanayo, ubuchwepheshe bokulawula okufika ngesikhathi budinga ukuhlinzekwa ngokuvumelana nezidingo zenqubo yomjovo weglue kanye nenqubo yokucindezela ukuze kuqinisekiswe ukuqhubeka kwenqubo yokubumba.