Mu compression molding, magawo awiri ofanana a mold amaikidwa mu press (nthawi zambiri hydraulic), ndipo kuyenda kwawo kumangokhala pa axis perpendicular to the plane of the mold. Chisakanizo cha resin, filler, reinforcement material, curing agent, etc. chimakanikizidwa ndikuchiritsidwa pamene chimadzaza dzenje lonse la molding die. Njirayi nthawi zambiri imagwirizanitsidwa ndi zipangizo zosiyanasiyana, kuphatikizapo:
Epoxy utomoni prepreg mosalekeza CHIKWANGWANI
Chopangira mapepala (SMC)
Zipangizo zoyeretsera matailosi (DMC)
Chopangira Zinthu Zambiri (BMC)
Mpando wagalasi wopangidwa ndi thermoplastic (GMT)
Masitepe opangira psinjika
1. Kukonzekera zipangizo zopangira utomoni
Kawirikawiri, zinthu zopangira ufa kapena granular zimayikidwa m'bowo, koma ngati kuchuluka kwa zopangira kuli kwakukulu, kukonza zinthu pasadakhale nthawi zambiri kumakhala kopindulitsa.
2. Kutenthetsa zipangizo zopangira utomoni
Mwa kutentha zinthu zopangira utomoni pasadakhale, chinthu chopangidwacho chikhoza kukonzedwa mofanana, ndipo nthawi yopangira utomoni ikhoza kuchepetsedwa. Kuphatikiza apo, popeza kuthamanga kwa utomoni kumatha kuchepetsedwa, zimathandizanso kupewa kuwonongeka kwa choyikapo ndi nkhungu. Zowumitsira mpweya wotentha zimagwiritsidwanso ntchito potenthetsera, koma zotenthetsera zamagetsi zamagetsi zimagwiritsidwa ntchito kwambiri.
3. Ntchito youmba
Zinthu zomangira zitayikidwa mu chikombole, choyamba zinthuzo zimafewa ndipo zimatuluka bwino pansi pa mphamvu yochepa. Pambuyo potopa, chikombolecho chimatsekedwa ndikukakamizidwanso kuti chichiritsidwe kwa nthawi yoikidwiratu.
Ma polyester osakhuta ndi ma epoxy resins omwe sapanga mpweya safuna utsi wotuluka.
Ngati pakufunika kuchotsa mpweya woipa, nthawi yokonzekera iyenera kulamulidwa. Ngati nthawiyo ili yoyambirira, kuchuluka kwa mpweya wotuluka kumakhala kochepa, ndipo mpweya wambiri udzatsekedwa mu chinthucho, zomwe zingapangitse thovu pamwamba pa chowumbira. Ngati nthawiyo yachedwa, mpweyawo watsekeredwa mu chinthucho chomwe chatsukidwa pang'ono, zimakhala zovuta kutulukamo, ndipo zingayambitse ming'alu mu chinthucho.
Pa zinthu zokhala ndi makoma okhuthala, nthawi yoziziritsa idzakhala yayitali kwambiri, koma ngati kuziziritsa sikunathe, thovu likhoza kupangidwa pamwamba pa umba, ndipo zinthu zolakwika zingapangidwe chifukwa cha kusintha kapena kuchepa pambuyo pake.
Nthawi yotumizira: Epulo-15-2021