Kwi-compression molding, kufakwa ii-mold halves ezimbini ezifanayo kwi-press (ngesiqhelo i-hydraulic), kwaye intshukumo yazo inqunyelwe kwi-axis ethe nkqo kwi-plane ye-mold. Umxube we-resin, i-filler, i-reinforcement material, i-curing agent, njl. iyacinezelwa kwaye inyangwe kwimeko yokuba izalise yonke indawo ye-molding die. Le nkqubo idla ngokunxulunyaniswa nezinto ezininzi, kuquka:
I-epoxy resin prepreg ifayibha eqhubekayo
I-compound yokubumba amaphepha (i-SMC)
Izinto zomzekelo wenkunkuma (i-DMC)
I-Bulk Molding Compound (BMC)
I-Glass mat ye-thermoplastic (GMT)
Amanyathelo okubumba ucinezelo
1. Ukulungiswa kwezinto zokubumba
Ngokubanzi, izinto zokubumba ezigudileyo okanye eziziigranular zifakwa kwindawo engaphakathi, kodwa ukuba ubungakanani bemveliso bukhulu, unyango lwangaphambi kokwenziwa ludla ngokuba luncedo.
2. Ukufudumeza izinto zokubumba
Ngokufudumeza izinto zokubumba kwangaphambili, imveliso ebunjiweyo inokulungiswa ngokulinganayo, kwaye umjikelo wokubumba ungancitshiswa. Ukongeza, ekubeni uxinzelelo lokubumba lunokunciphisa, lukwanomphumo wokuthintela umonakalo kwi-insert kunye ne-mold. Ii-dryer zomoya oshushu nazo zisetyenziselwa ukufudumeza kwangaphambili, kodwa ii-preheaters eziphezulu zisetyenziswa kakhulu.
3. Umsebenzi wokubumba
Emva kokuba izinto zokubumba zifakwe kwi-mold, izinto ziyaqala zithambe kwaye zigeleze ngokupheleleyo phantsi koxinzelelo oluphantsi. Emva kokudinwa, i-mold iyavalwa ize icinezelwe kwakhona ukuze iphiliswe ixesha elimiselweyo.
Iipolyester ezingagcwaliyo kunye nee-epoxy resins ezingavelisi gesi azifuni kukhutshwa ngumoya.
Xa kufuneka ukukhupha igesi, ixesha lokucwangcisa kufuneka lilawulwe. Ukuba ixesha lingaphambi kwexesha, ubungakanani begesi ekhutshiweyo buncinci, kwaye inani elikhulu legesi liya kuvalwa kwimveliso, nto leyo enokuvelisa amaqamza kumphezulu wokubumba. Ukuba ixesha lihambile, igesi ibanjwe kwimveliso epheliswe kancinci, kunzima ukuyibaleka, kwaye inokubangela imingxunya kwimveliso ebunjiweyo.
Kwiimveliso ezixineneyo, ixesha lokunyanga liza kuba lide kakhulu, kodwa ukuba ukunyanga akuphelelanga, amaqamza anokuveliswa kumphezulu wokubumba, kwaye iimveliso ezineziphene zinokuveliswa ngenxa yokuguquka okanye emva kokushwabana.
Ixesha lokuthumela: Epreli-15-2021