Uphando kwiindlela zokuphucula umgangatho womgangatho wemveliso ye-fiberglass ebekwe ngesandla

Ixesha leGelation
Ixesha le-gel le-resin ye-polyester engaxutywanga ininzi i-6 ~ 21 min (25 ℃, 1% MEKP, 0 5% cobalt naphthalate).I-gel ikhawuleza kakhulu, ixesha lokusebenza alanele, imveliso iyancipha kakhulu, ukukhutshwa kobushushu kugxininiswe, kwaye i-mold kunye nemveliso kulula ukonakala.Ijeli icotha kakhulu, kulula ukuhamba, icotha ukunyanga, kwaye i-resin kulula ukuyonakalisa umaleko wengubo yejeli, ukunciphisa ukusebenza kakuhle kwemveliso.

Ixesha le-gelation lihambelana nokushisa kunye nomlinganiselo womqalisi kunye nomgqugquzeli wongezwa.Xa izinga lokushisa liphezulu, ixesha le-gelation liya kuncitshiswa, elinokunciphisa inani labaqalisi kunye ne-accelerators eyongeziweyo.Ukuba uninzi lwabaqalisi kunye nee-accelerators zongezwa kwi-resin, umbala we-resin uya kuba mnyama emva kokunyanga, okanye ngenxa yokusabela ngokukhawuleza, i-resin iya kukhulula ubushushu ngokukhawuleza kwaye igxininiswe kakhulu (ingakumbi kwiimveliso ezishinyeneyo), eziya kutshisa imveliso kunye nokungunda.Ke ngoko, umsebenzi wokubekwa kwesandla uqhele ukwenziwa kwindawo engaphezulu kwe-15 ℃.Ngeli xesha, isixa se-initiator kunye ne-accelerator ayifuni kakhulu, kwaye impendulo ye-resin (ijeli, ukunyanga) izinzile, ekulungele ukusebenza kwezandla.

Ixesha le-gelation le-resin libaluleke kakhulu kwimveliso yangempela.Uvavanyo lufumene ukuba ixesha le-gel le-resin li-25 ℃, i-1% MEKP kunye ne-0 Ngaphantsi kwemeko ye-5% ye-cobalt naphthalate, imizuzu eyi-10-18 iyona nto ifanelekileyo.Nangona iimeko zendawo yokusebenza zitshintsha kancinci, iimfuno zemveliso zinokuqinisekiswa ngokulungelelanisa i-dosage yabaqalisi kunye ne-accelerators.

Ezinye iimpawu ze-resin
(1) Iimpawu zokukhupha ugwebu lwentlaka
Ukukwazi ukutshabalalisa i-resin kuhambelana ne-viscosity yayo kunye nomxholo we-agent ye-defoaming.Xa i-viscosity ye-resin ihlala ihleli, inani le-defoamer elisetyenzisiweyo limisela ubukhulu becala i-porosity yemveliso.Kwimveliso yangempela, xa ukongeza i-accelerant kunye ne-initiator kwi-resin, umoya ongaphezulu uya kuxutywa.Ukuba i-resin inepropathi ephosakeleyo yokungcola, umoya kwi-resin ngaphambi kokuba i-gel ayikwazi ukukhutshwa ngexesha, kufuneka kubekho iibhubhu ezininzi kwimveliso, kwaye i-void ratio iphezulu.Ngoko ke, i-resin enepropathi efanelekileyo yokuhlambalaza kufuneka isetyenziswe, enokunciphisa ngokufanelekileyo iibhubhu kwimveliso kunye nokunciphisa umlinganiselo ongenanto.

(2) Umbala wentlaka
Okwangoku, xa iimveliso ze-fiberglass zisetyenziswa njengemihombiso ekumgangatho ophezulu wangaphandle, ngokubanzi kufuneka ziqatywe ngepeyinti ephezulu kumphezulu ukwenza umphezulu wemveliso ube nemibala.Ukuze kuqinisekiswe ukuhambelana kombala wepeyinti kumphezulu weemveliso ze-fiberglass, kuyafuneka ukuba umphezulu weemveliso ze-fiberglass zibe mhlophe okanye zibe nombala okhanyayo.Ukuhlangabezana nale mfuneko, i-resin enombala okhanyayo kufuneka ikhethwe xa ukhetha i-resin.Ngokusebenzisa iimvavanyo zokuhlola kwinani elikhulu le-resin, kwaboniswa ukuba ixabiso lombala we-resin (APHA) Φ 84 inokusombulula ngokufanelekileyo ingxaki yombala weemveliso emva kokunyanga.Kwangaxeshanye, ukusebenzisa i-resin enemibala ekhanyayo yenza kube lula ukubona kunye nokukhupha amaqamza kwi-paste layer ngexesha elifanelekileyo ngexesha lenkqubo yokuncamathisela;Kwaye unciphise ukwenzeka kobunzima bemveliso obungalinganiyo obubangelwa ziimpazamo zokusebenza ngexesha lenkqubo yokuncamathisela, okukhokelela kumbala ongahambelaniyo kumphezulu wangaphakathi wemveliso.

(3) Ukomisa umoya
Kumanzi aphezulu okanye iimeko zobushushu obuphantsi, kuqhelekile ukuba umphezulu ongaphakathi wemveliso uncangathi emva kokuqiniswa.Oku kungenxa yokuba i-resin engaphezulu kwe-paste layer idibana neoksijini, umphunga wamanzi, kunye nezinye ii-polymerization inhibitors emoyeni, okukhokelela kumaleko angaphelelanga anyangekileyo we-resin kumphezulu ongaphakathi wemveliso.Oku kuchaphazela kakhulu emva kokulungiswa kwemveliso, kwaye ngakolunye uhlangothi, ubuso obungaphakathi buxhomekeke ekunamatheleni uthuli, oluchaphazela umgangatho wendawo yangaphakathi.Ngoko ke, xa ukhetha i-resins, kufuneka kuhlawulwe ingqalelo ekukhetheni ii-resin ezineempawu zokomisa umoya.Kwii-resin ezingenazo iipropati zokomisa umoya, isisombululo se-5% yeparafini (indawo yokunyibilika 46-48 ℃) kunye ne-styrene ngokubanzi inokudibaniswa kwi-resin kwi-18-35 ℃ ukusombulula iipropati zokumisa umoya we-resin, kunye nedosi malunga I-6-8% ye-resin.

Gelatin ukutyabeka resin
Ukuphucula umgangatho womphezulu weemveliso ze-fiberglass, umaleko otyebileyo we-resin onemibala uyafuneka ngokubanzi kumphezulu wemveliso.I-Gel yengubo ye-resin yilolu hlobo lwezinto eziphathekayo.I-Gelatin yokugquma i-resin iphucula ukumelana nokuguga kweemveliso ze-fiberglass kwaye ibonelela ngomphezulu we-homogeneous, iphucula umgangatho weemveliso.Ukuqinisekisa umgangatho omhle womgangatho wemveliso, ubukhulu bomgca wokunamathela bufuneka ngokubanzi ukuba bube yi-0 4-6 mm.Ukongeza, umbala wengubo yejeli kufuneka ube mhlophe okanye ulula, kwaye akukho mahluko wombala phakathi kweebhetshi.Ukongezelela, ingqalelo kufuneka ihlawulwe ekusebenzeni kokusebenza kwengubo ye-gel, kubandakanywa ne-viscosity yayo kunye nokulinganisa.I-viscosity efanelekileyo kakhulu yokutshiza i-gel i-coating yi-6000cps.Eyona ndlela intuitive yokulinganisa umgangatho we-gel yokugqoka i-gel kukutshiza umaleko we-gel yokugqoka kwindawo yendawo ye-mold eye yachithwa.Ukuba kukho i-fisheye efana ne-shrinkage marks kwi-gel yokugqoka i-gel, ibonisa ukuba ukulinganisa kwe-gel yokugqoka akulungile.

Iindlela ezahlukeneyo zokugcinwa kwesikhunta ezahlukeneyo zezi zilandelayo:
Ukubumba okutsha okanye ukubumba okungazange kusetyenziswe ixesha elide:
Ingubo ye-gel kufuneka ixutywe kakuhle ngaphambi kokusetyenziswa, kwaye emva kokongeza inkqubo ye-trigger, kufuneka ikhawuleze kwaye ixutywe ngokulinganayo ukufezekisa umphumo wokusetyenziswa.Xa utshiza, ukuba i-viscosity ifunyenwe iphezulu kakhulu, isixa esifanelekileyo se-styrene sinokufakwa kwi-dilution;Ukuba incinci kakhulu, yitshize ibe bhityile kwaye amaxesha ambalwa ngaphezulu.Ukongeza, inkqubo yokutshiza ifuna ukuba umpu wokutshiza ube malunga ne-2cm ukusuka kumphezulu wokungunda, kunye noxinzelelo lomoya olucinezelekileyo olufanelekileyo, umphezulu wompu we-spray fan perpendicular to the direction of the gun, kunye ne-spray gun fan fan surfaces ezidlulanayo. ngo 1/3.Oku akunako ukucombulula kuphela iziphene zenkqubo yengubo ye-gel ngokwayo, kodwa iphinde iqinisekise ukuhambelana komgangatho wemveliso yengubo yengubo ye-gel.

Impembelelo yokubumba kumgangatho ophezulu weemveliso
Umngundo sesona sixhobo sokwenza iimveliso ze-fiberglass, kwaye iimold zinokwahlulwa zibe ziindidi ezinjengentsimbi, i-aluminiyam, i-samente, irabha, iparafini, i-fiberglass, njl.Imibumbo ye-Fiberglass iye yaba yeyona nto isetyenziswa kakhulu ukubumba ngesandla se-fiberglass ngenxa yokubunjwa lula, ubukho bemathiriyeli ekrwada, ixabiso eliphantsi, umjikelo omfutshane wokwenza, kunye nokugcinwa lula.
Iimfuno zomphezulu zokubumba i-fiberglass kunye nezinye izibumba zeplastiki ziyafana, ngokuqhelekileyo umphezulu wokubumba ukwinqanaba elinye eliphezulu kunobugudi bomhlaba bemveliso.Okungcono umphezulu wokubumba, ixesha elifutshane lokubumba kunye nexesha emva kokulungiswa kwemveliso, ungcono umgangatho womgangatho wemveliso, kwaye ubude benkonzo yenkonzo yokubumba.Emva kokuba i-mold ihanjiswe ukuze isetyenziswe, kuyimfuneko ukugcina umgangatho womhlaba we-mold.Ukugcinwa kwesikhunta kubandakanya ukucoca umphezulu we-mold, ukucoca i-mold, ukulungisa iindawo ezonakalisiweyo, kunye nokupholisa i-mold.Ukugcinwa kwangexesha nangempumelelo kwezingunda yeyona ndawo iphambili yogcino lokungunda, kwaye indlela echanekileyo yogcino lokungunda ibalulekile.Le theyibhile ilandelayo ibonisa iindlela ezahlukeneyo zokulondoloza kunye neziphumo ezihambelanayo zokulondoloza.
Okokuqala, coca kwaye uhlolisise umphezulu wesikhunta, kwaye wenze ukulungiswa okuyimfuneko kwiindawo apho ukubunjwa kubonakaliswe okanye ukwakhiwa ngokungekho ngqiqweni.Emva koko, hlambulula umphezulu we-mold kunye ne-solvent, uyomise, uze upholise umphezulu we-mold ngomatshini wokupholisa kunye ne-polish paste kanye okanye kabini.Gqibezela ukuweksa kunye nokupolisha izihlandlo ezithathu ngokulandelelana, emva koko sebenzisa ukuweksa kwakhona, kwaye ipolishi kwakhona phambi kokusetyenziswa.

Umngundo usetyenziswa
Okokuqala, qinisekisa ukuba umngundo ugalelwe wax kwaye ukhazimliswe rhoqo kathathu xa usetyenziswa.Kwiindawo ezithanda ukonakala kwaye kunzima ukuzidiliza, i-waxing kunye nokupolishwa kufuneka kwenziwe phambi kokusetyenziswa ngakunye.Okwesibini, kuluhlu lwezinto zangaphandle (mhlawumbi i-polystyrene okanye i-wax) enokuthi ibonakale ebusweni besikhunta esisetyenziswe ixesha elide, kufuneka ihlambuluke ngexesha elifanelekileyo.Indlela yokucoca kukusebenzisa ilaphu lekotoni elifakwe kwi-acetone okanye isicoci esikhethekileyo sokubumba ukukhuhla (indawo engqindilili inokukhutshelwa ngobunono ngesixhobo), kwaye inxalenye ecociweyo kufuneka idityaniswe ngokuhambelana nokubumba esitsha.
Kwizibungu ezonakalisiweyo ezingenakulungiswa ngexesha elifanelekileyo, izinto ezifana neebhloko ze-wax ezithintekayo kwi-deformation kwaye azichaphazeli ukunyangwa kwengubo ye-gel zingasetyenziselwa ukuzalisa nokukhusela indawo eyonakalisiweyo yokubumba ngaphambi kokuqhubeka nokusebenzisa.Kwabo banokulungiswa ngexesha elifanelekileyo, indawo eyonakeleyo kufuneka ilungiswe kuqala.Emva kokulungiswa, akukho ngaphantsi kwe-4 abantu (kwi-25 ℃) kufuneka banyangwe.Indawo elungisiweyo kufuneka ikhazimliswe kwaye ithotywe phambi kokuba isetyenziswe.Ukugcinwa okuqhelekileyo kunye nokuchanekileyo kwendawo yokubumba imisela ubomi benkonzo yokubumba, ukuzinza komgangatho wemveliso, kunye nokuzinza kwemveliso.Ngoko ke, kuyimfuneko ukuba ube nomkhwa omhle wokugcinwa kwesikhunta.Isishwankathelo, ngokuphucula izixhobo kunye neenkqubo kunye nokuphucula umgangatho womhlaba wokubumba, umgangatho ophezulu weemveliso ezibekwe ngesandla uya kuphuculwa kakhulu.