izindaba

Ukuthembela isikhathi eside ku-thermoset carbon-fiber izinto zokwenza izingxenye eziqinile zezinhlanganisela zezinhlanganisela zezindiza, manje selukwa esinye isigaba sezinto ze-carbon-fiber njengoba kwezobuchwepheshe zithembisa izingxenye ezintsha ze-non-thermoset ngevolumu ephezulu, izindleko eziphansi, futhi isisindo esilula.

Ngenkathi izinto ze-thermoplastic carbon-fiber composite izinto ezinde, "muva nje kungenzeka ukuthi abakhiqizi be-aerospace babheka ukusetshenziswa kwabo okubanzi ekwenzeni izingxenye zezindiza, kufaka phakathi izingxenye zama-stephane dion, i-VP Engineering at Collins AeroSpace

I-Thermoplastic Carbon-fiber Composites okungenzeka ukuthi inikeze ama-Oerospace OROSPACE I-AEROSPACE ADVANTAGES ngaphezulu kwama-Thermoset Composites, kepha kuze kube yilapho abakhiqizi muva nje bengakwazi ukwenza izingxenye zibe izinhlanganisela ze-thermoplastic ngamanani aphezulu nangezindleko eziphansi, kusho yena.

Eminyakeni emihlanu edlule, ama-Oems aseqalile ukubheka ngalé kokuthola izingxenye ezintweni ze-thermoset njengezindlela zokukhiqiza ze-carbon-fiber composite athuthukiswe, abuye asebenzise amasu wokudlulisela ama-resin kanye ne-resin yokudlulisela izingxenye, bese ukusebenzisa ama-thermoplastic composites.

UGkn Aerospace utshale imali kakhulu ekwakheni ubuchwepheshe bawo boku-resin-ukumnika kanye ne-RTM ngokwenziwa kwezinto ezinkulu zezakhiwo ezihlelekile ezingenamsebenzi nakumanani aphezulu. UGKN manje wenza i-spar enamaphiko amamitha ayi-17, okuhlangenwe nakho okukodwa, okukodwa kwe-resin infusion ekhiqizwayo, ngokusho kukaMax Brown, i-VP yezobuchwepheshe ye-GNK Aerospace's Horizon 3 Adventuetum-Technologies isinyathelo esingu-3.

I-OEMS 'I-Hard composite-device-develite yokutshala imali eminyakeni embalwa edlule nayo ifake ukusetshenziswa kwesusiteki kumakhono athuthukayo okuvumela ukukhiqizwa okunamandla okuvunyelwa kwezingxenye ze-thermoplastic, ngokusho kweDion.

Umehluko ophawuleka kakhulu phakathi kwe-thermoset ne-thermoplastic eqinisweni ukuthi izinto ze-thermoset kufanele zigcinwe kwisitoreji esibandayo ngaphambi kokuba zibonwe zibe izingxenye, futhi zibunjiwe, ingxenye ye-thermoset kumele yenzeke amahora amaningi nge-autoclave. Izinqubo zidinga amandla amaningi nesikhathi, futhi ngakho-ke izindleko zokukhiqiza zezingxenye ze-thermoset zivame ukuhlala ziphezulu.

Ukulapha kuguqula ukwakheka kwamangqamuzana kwe-thermoset composite ngokungaguquki, ukunikela iqhaza amandla alo. Kodwa-ke, esigabeni samanje sentuthuko yezobuchwepheshe, ukwelashwa nokwelapha kubuye kunikezele lokho okufunwa yingxenye engakulungele ukusetshenziswa kabusha kwingxenye yesakhiwo esiyinhloko.

Kodwa-ke, izinto ze-thermoplastic azidingi ukugcinwa okubandayo noma ukubhaka lapho kwenziwa ezingxenyeni ezithile, ngokusho kweDion. Zingafakwa esigqetyelwe esimweni sokugcina sengxenye elula - wonke ubakaki wezithombe ze-fuselage ku-a350 ingxenye ye-thermoplastic composite ingxenye-noma esigabeni esiphakathi kwengxenye eyinkimbinkimbi.

Izinto ze-thermoplastic zingafakwa ndawonye ngezindlela ezahlukahlukene, zivumela izingxenye eziyinkimbinkimbi, ezakhiwe kakhulu zokwenziwa kusuka ezinhlakeni ezilula. Namuhla ukufudumeza kwe-welding kusetshenziswe ikakhulukazi, okuvumela kuphela izingxenye ezifuywayo, ezihlala njalo ezishukumisayo ezingxenyeni ezingaphansi, ngokusho kweDion. Kodwa-ke, ama-Collins athuthukisa amasu wokudlidliza kanye nokuphambana we-welding ngokujoyina izingxenye ze-thermoplastic, ezake zaqinisekisa ukuthi zilindele ukuthi zizokuvumela ukuthi zivumele zikhiqize "izakhiwo eziyinkimbinkimbi ngempela," kusho yena.

Amandla okubhula ndawonye izinto ze-thermoplastic ukwenza izakhiwo eziyinkimbinkimbi zivumela abakhiqizi ukuthi bazenzele izikulufo zensimbi, ukugoqa, ngaleyo ndlela kwakhiwa inzuzo yokunciphisa isisindo ecishe ibe ngamaphesenti ayishumi, amaphesenti ansundu.

Noma kunjalo, ama-thermoplastic composites angcono ezinhlamthani kunezinhlanganisela ze-thermoset, ngokusho kombala onsundu. Ngenkathi i-Industrial R & D ihlose ukuthuthukisa izinhlelo zokusebenza ezingokoqobo zaleyo ndawo ye-thermoplastic zihlala "ezingeni lokuvuselelwa kokuvuthwa kokukhula," kungahle kwamukele izakhiwo ezihlanganisiwe ze-aeropace eziqukethe izakhiwo ezihlanganisiwe ze-hyrmoplastic kanye nensimbi.

Isicelo esisodwa esingase sibe khona, ngokwesibonelo, sibe yisiqephu esisodwa, isihlalo sabagibeli esilula esinezinsimbi ezisuselwa ku-interface ezidingekayo esibonakalayo esisetshenziswayo umgibeli ukuze akhethe futhi alawule izinketho zakhe zokuzijabulisa, ukukhanyisa okweqile , Ukulungiswa kwesihlalo se-elekthronikhi, iwindi le-Shade Shade Opacity, neminye imisebenzi.

Ngokungafani nezinto zokuhlwaya, ezidinga ukwelashwa ukuze zikhiqize ukuqina, amandla, nokwakheka okudingekayo ezingxenyeni abazenzayo, izinhlaka zamangqamuzana ezinto ezihlanganisiwe ze-thermoplastic composite aziguquki lapho zenziwa ezingxenyeni ezithile.

Ngenxa yalokhu, izinto ze-thermoplastic zingamaphutha kakhulu - zimelana nomthelela kunezinto zokwakha i-thermoset ngenkathi zinikeza okufanayo, uma kungenjalo kunamandla, ukuhlakanipha okunamandla namandla. "Ngakho-ke ungaklama [izingxenye] kuma-gauges amancanyana amaningi," kusho uDarmoplastic izingxenye ezingaphansi kwanoma yiziphi izingxenye ze-thermoset ezizothatha indawo ye-thermoplastic ezibangelwa izikulufa zensimbi noma ama-fasteners .

Izingxenye ze-thermoplastic ze-recycling nazo kufanele zibonise inqubo elula kunokuphinda usebenzise kabusha izingxenye ze-themoset. At the current state of technology (and for some time to come), the irreversible changes in molecular structure produced by curing thermoset materials prevent the use of recycled material to make new parts of equivalent strength.

Izingxenye ze-thermoset ezisebenzisa kabusha zibandakanya ukugaya imicu yekhabhoni ekusetshenzisweni ngobude obuncane futhi bavutha ingxube ye-fiber-and resin ngaphambi kokukuphinda. Izinto ezitholakele ukuphindwaphindwa zibuthakathaka ngokuhlelekile kunempahla ye-thermoset eyenziwe yingxenye eyenziwe kabusha, ngakho-ke ukuguqula izingxenye ze-thermoset zibe yintsha ngokuvamile ziphenduka "zinsundu.

Ngakolunye uhlangothi, ngoba izinhlaka ze-molecular zezingxenye ze-thermoplastic aziguquki ezingxenyeni zokukhiqiza nezingxenye zokujoyina izingxenye, zimane zincibilikiswe zibe ngamafomu anoketshezi futhi ziphinde zikhuliswe zibe izingxenye ziqine njengezigaba, ngokusho kwe-dion.

Abaqambi bezindiza bangakhetha ekukhetheni okubanzi kwezinto ezihlukile ze-thermoplastic ezitholakalayo ongakhetha kuzo ekwakheni nasekukhiqizeni izingxenye. "Uhla olubanzi lwama-resins" luyatholakala lapho ama-carbon fiber curnon fiber filaments noma ama-weves anezici ezimbili angashumeka, akhiqize izakhiwo ezahlukahlukene ezibonakalayo, kusho i-dion. "Ama-resins athokozisayo kakhulu angama-resins aphansi ancibilikisiwe," ancibilika amazinga okushisa aphansi futhi ngakho-ke angakhiwa futhi akhiwe emazingeni okushisa aphansi.

Amakilasi ahlukene we-thermoplastics futhi anikela ngempahla ehlukile yokuqina (ephezulu, ephakathi nendawo, futhi ephansi) nekhwalithi ephelele, ngokusho kwe-dion. Ama-resins asezingeni eliphakeme kakhulu abiza kakhulu, futhi ukuthengiswa kufanekisela isithende se-achilles ngama-thermoplastics ngokuqhathanisa nezinto zokwenziwa kwe-thermoset. Imvamisa, babiza ngaphezu kwama-thermosets, futhi abakhiqizi bezindiza kumele babheke lelo qiniso kwizibalo zabo / zokubalwa kwezinzuzo, kusho uBrown.

Ngokwengxenye yaleso sizathu, uGkn Aerospace nabanye bazoqhubeka nokugxila kakhulu ezintweni ze-thermoset lapho bekhiqiza izingxenye ezinkulu zesakhiwo sendiza. Sebevele basebenzise izinto ze-thermoplastic kabanzi ekwenzeni izingxenye ezincane ezihlelekile ezinjenge-empompennages, ama-rudders kanye nabaphangi. Kodwa-ke, maduze nje, lapho ivolumu ephezulu, ukukhiqizwa kwezindleko eziphansi ze-thermoplastic ezingasindi, abakhiqizi bazoyisebenzisa kabanzi kakhulu - ikakhulukazi emakethe yase-Evtoon Uam, yaphetha.

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