Inkqubo ye-HP-RTM

1. Intshayelelo kwinkqubo ye-HP-RTM

I-HP-RTM (i-High Pressure Resin Transfer Molding) sisishunqulelo senkqubo yokubumba i-high-pressure resin transfer. Bubuchwephesha obuphezulu bokubumba obusebenzisa uxinzelelo oluphezulu lokuxuba kunye nokufaka i-resin kwi-vacuum-seal mold efakwe ngaphambili kunye nezinto eziqiniswe ngefiber kunye nokufakwa kwangaphambili. I-resin ihamba ngokuzaliswa kwesikhunta, ukukhulelwa, ukunyanga kunye nokudilizwa. , ukufumana inkqubo yokubumba yokusebenza okuphezulu kunye neemveliso ezichanekileyo ezichanekileyo. Inenzuzo yokusebenza okuphezulu, ukonga amandla, kunye nokukhuselwa kokusingqongileyo, kwaye isetyenziswe ngokubanzi kwiimoto, kwi-aerospace, i-elektroniki kunye namanye amacandelo.

Inkqubo iboniswe kuMfanekiso 1:

Umzobo 1 umzobo weSchematic wenkqubo ye-HP-PTM

2. Iimpawu zenkqubo ye-HP-RTM

I-HP-RTM ibandakanya ukusetyenzwa kwangaphambili, inaliti ye-resin, inkqubo yokucinezela kunye nenkqubo yokulungisa. Xa kuthelekiswa nenkqubo ye-RTM yendabuko, inkqubo ye-HP-RTM yandisa inkqubo yokucofa i-post-injection, inciphisa ubunzima be-resin injection kunye nokuzaliswa, iphucula umgangatho wokungena kwe-preforms, kwaye iyancipha umjikelezo wokubumba. Iimpawu zenkqubo ethile zezi zilandelayo:

(1) Ukuzaliswa kwesikhunta ngokukhawuleza. I-resin igcwalisa ngokukhawuleza i-mold cavity, inefuthe elihle lokungena, inciphisa kakhulu amaqamza kunye ne-porosity, kunye ne-low-viscosity resin yonyusa kakhulu isantya sokutofa kwe-resin kwaye ifinyeze umjikelo wenkqubo yokubumba.

(2) I-resin esebenzayo kakhulu. Izinga lokuphendula lokunyanga iresin liyenyuka kwaye umjikelo wokunyanga weresin ufinyeziwe. Yamkela inkqubo ye-resin ekhawulezayo yokunyanga kwaye yamkele i-high-effective high-high-high-pressure mixing and injection equipment ukuphumeza ukufana kokuxubana okungcono kwe-resin matrix. Ngelo xesha, indawo yokushisa ephezulu iyafuneka ngexesha lokubumba, okuphucula kakhulu izinga lokuphendula lokuphilisa i-resin, linciphisa umjikelezo wemveliso, kwaye lizinzise inkqubo. Uzinzo oluphezulu kunye nokuphindaphinda,

(3) Sebenzisa i-ejenti yokukhululwa yangaphakathi kunye nenkqubo yokuzicoca ukuze kuphuculwe ukusebenza kakuhle kokucoca kwezixhobo. Itekhnoloji yokucoca ngokuzimeleyo yentloko yokuxuba i-injection isetyenzisiweyo, kwaye icandelo le-ejenti yokukhupha yangaphakathi yongezwa kwizinto eziluhlaza ukuze kuphuculwe ngokufanelekileyo ukucoca kwezixhobo. Ngexesha elifanayo, umphumo wemveliso ugqwesileyo, kwaye ubukhulu kunye nokuphambuka kwemilo kuncinci. Ukufezekisa ixabiso eliphantsi, umjikelo omfutshane (umthamo omkhulu), umgangatho ophezulu wemveliso.

(4) Sebenzisa itekhnoloji yevacuum ekhawulezayo yokungunda. Umxholo wepore kumacandelo uyancitshiswa kwaye ukusebenza kwamacandelo kuphuculwe. Inciphisa ngokufanelekileyo umxholo we-pore kwimveliso, iphucula ukusebenza kakuhle kwefayibha, iphucula ubuchule bokudibanisa ujongano phakathi kwefiber kunye ne-resin, kwaye iphucula umgangatho wemveliso.

(5) Ukudibanisa i-vacuuming kunye nenkqubo yokubumba i-compression emva kwesitofu. Ubunzima benkqubo yamacandelo buyancipha kwaye umgangatho wezinto eziqinisiweyo ze-resin-impregnated ziphuculwe. Iyanciphisa ubunzima bokuyila i-port injection yeglue kunye ne-exhaust port yenkqubo ye-RTM, iphucula umthamo wokuzalisa ukuhamba kwe-resin, kunye nomgangatho wokungena kwefiber nge-resin.

(6) Sebenzisa umphezulu oqinileyo ophindwe kabini ukuvala ukungunda, kwaye usebenzise i-hydraulic press pressurization ene-tonnage enkulu yoxinzelelo. Imveliso inokuphambuka okuphantsi kobukhulu kunye nobume obuthathu. Ukuqinisekisa isiphumo sokutywinwa kokungunda, iindawo eziqinileyo eziphindwe kabini zisetyenziselwa ukuvala isikhunta, kwaye umatshini wokushicilela we-hydraulic we-tonnage enkulu usetyenziselwa ucinezelo, okwandisa amandla okubamba ngexesha lenkqubo yokubumba kwaye kunciphisa ngokufanelekileyo ubukhulu kunye nokuphambuka kobume. lwamalungu.

(7) Imveliso ineempawu eziphezulu eziphezulu kunye nomgangatho. Ukusebenzisa itekhnoloji yokutshiza i-in-mold kunye ne-high-gloss molds, iindawo zinokufumana umgangatho ocacileyo ophezulu ocacileyo ngexesha elifutshane kakhulu.

(8) Inozinzo oluphezulu lwenkqubo kunye nokuphindaphinda. Ukusetyenziswa kwenaliti ye-gap kunye ne-post-injection compression technology iphucula kakhulu umthamo wokuzalisa i-mold ye-resin, inciphisa ngokufanelekileyo amathuba okukhubazeka kwenkqubo, kwaye inokuphindwa kwenkqubo ephezulu.

3. Iiteknoloji zenkqubo eziphambili

(1) Itekhnoloji yokwenziwa kwangaphambili kwezinto eziqinisiweyo zefiber

Itekhnoloji yokulungisa iFayibha yangaphambili ibandakanya ikakhulu: izinto ezilukiweyo, ukunitha kunye nokuphotha kwangaphambili; ukuthunga preforms; iipreforms zenaliti yefayibha ezinqunqwe; i-hot pressing preforms, njl. Phakathi kwazo, iteknoloji yokubumba i-hot press yeyona isetyenziswa kakhulu. Kobu buchwephesha, iarhente yokubunjwa sisiqinisekiso esisisiseko, kunye nefiber preforming mold kunye nokucinezela itekhnoloji isitshixo sokubunjwa kwefayibha. Kwinkqubo ye-HP-RTM, ulwakhiwo lwenxalenye lulula, ngoko ke ukubumba ukubunjwa kukwalula. Undoqo ulele kwindlela yokulawula ukubumba kunye noxinzelelo lwezixhobo zokusebenza ngokufanelekileyo kunye nokulungelelaniswa koxinzelelo kunye nokumila ngokuyila kunye neenkqubo zokulawula.

(2) I-high-precision resin metering, ukuxuba kunye ne-injection yeteknoloji

Ukuxutywa kunye nokutofa kwe-HP-RTM inkqubo ye-resin ikakhulu ibandakanya iinkqubo ezimbini: i-resin main material kunye ne-mold spray resin. Isitshixo kulawulo lwayo silele kwi-high-precision resin metering system, iteknoloji yokuxuba ngokukhawuleza kunye neyunifomu kunye nokuxuba izixhobo zokuzicoca iteknoloji. Inkqubo ye-HP-RTM yezinto eziphambili ze-resin kufuneka zilinganiswe ngokuchanekileyo phantsi kobushushu obuphezulu kunye noxinzelelo oluphezulu, olufuna izixhobo zempompo zemitha ezichanekileyo. Ukuxuba okulinganayo kunye nokuzicoca kwe-resin kufuna ukuyila kwentloko esebenzayo, yokucoca, yokuxuba ezininzi.

(3) Ukubumba iqondo lobushushu lokubumba ukufana kwentsimi kunye noyilo lokutywinwa

Ngexesha lenkqubo ye-HP-RTM, ukufana kwentsimi yeqondo lokushisa lokubumba ukubumba akugcini nje ukugqiba kwaye kuchaphazela ukuhamba kunye nokuzaliswa kwe-resin kwi-mold cavity, kodwa kunempembelelo enkulu ekusebenzeni kwe-fiber infiltration, ukusebenza ngokubanzi. yezinto ezidibeneyo, kunye noxinzelelo lwangaphakathi lwemveliso. . Ngoko ke, kuyimfuneko ukusebenzisa ukufudumeza okuphakathi okudityanisiweyo kunye noyilo lwesekethe ye-oyile esebenzayo kunye nengqiqo. Ukusebenza kokutywinwa kwe-mold kubeka ngokuthe ngqo ukuhamba kwe-resin kunye neempawu zokuzaliswa kwe-mold, kunye nokukwazi ukukhupha inkqubo yokubumba. Ikhonkco eliphambili elichaphazela ukusebenza kwemveliso. Kuyimfuneko ukuyila indawo, indlela kunye nobuninzi beekhonkco zokutywina ngokwemveliso. Ngexesha elifanayo, kuyimfuneko ukuxazulula iingxaki zokutywinwa kwi-gap yokufaka i-mold, inkqubo ye-ejection, inkqubo ye-vacuum kunye nezinye izikhundla zokuqinisekisa ukuba akukho kuvuza komoya ngexesha lenkqubo yokuzaliswa kwe-resin ukuqinisekisa ukusebenza kwenxalenye.

(4) I-high-precision hydraulic press kunye neteknoloji yokulawula

Kwinkqubo ye-HP-RTM, i-mold yokuvala i-gap yokulawula inkqubo yokuzaliswa kwe-resin kunye nokulawulwa koxinzelelo kwinkqubo yokucinezela zonke zifuna isiqinisekiso senkqubo yokushicilela i-hydraulic esebenzayo kunye nechanekileyo. Ngelo xesha, iteknoloji yokulawula ngexesha elifanelekileyo kufuneka ibonelelwe ngokweemfuno zenkqubo ye-glue injection kunye nenkqubo yokucinezela ukuqinisekisa ukuqhubeka kwenkqubo yokubumba.