I-BMC isifinyezo seI-Bulk Molding CompoundngesiNgisi, igama lesiShayina liyi-Bulk Molding Compound (ebuye ibizwe ngokuthi: i-polyester glass fibre eqiniswe nge-Bulk Molding Compound) nge-resin ewuketshezi, i-ejenti encibilikayo, i-crosslinking ejenti, i-initiator, i-filler, i-short-cut glass fiber flakes nezinye izingxenye zengxube ebonakalayo yenkimbinkimbi, ezimweni zokushisa nezingcindezi, ukuphambana kwe-polymer engaxutshwe ne-unsaturated kwenzeka. Ngaphansi kwezinga lokushisa nokucindezela, i-polyester engagcwele kanye ne-styrene kuxhumene futhi kwelapheka ngokusabela kwe-polymerization. Izakhiwo zayo ezinhle kakhulu zemishini kanye nezakhiwo zikagesi ezinhle kakhulu, ukumelana nokushisa kanye nezakhiwo ezinhle zokucubungula zisetshenziswa kakhulu ezintweni zikagesi, izinsimbi, ukukhiqizwa kwezimoto, izindiza, ezokuthutha, izimboni zokwakha.
Uhlelo lokwakha
1. I-polyester resin engagcwele: ene-smc/bmc resin ekhethekile, ikakhulukazi i-m-phenyl up, ukumelana nomthelela, ukumelana nokugqwala, ukumelana ne-arc, ilungele ukukhiqizwa kwe-block noma imikhiqizo ye-anisotropic
2. I-Crosslinking agent; nge-monomer styrene, inani le-up30% ~ 40%, kuye ngokuqukethwe kwamabhondi aphindwe kabili ku-polyester engagcwalisiwe kanye nengxenye yamabhondi aphindwe kabili nama-cis amabhondi aphindwe kabili, ingxenye ephezulu yama-monomer axhumanisayo, angathola ukuphulukiswa okuphelele.
3. I-initiator ene-ejenti yokwelapha izinga lokushisa eliphezulu, i-tert-butyl peroxybenzoate (TBPB) ingeye-ejenti evame ukusetshenziswa yokwelapha izinga lokushisa eliphezulu, izinga lokushisa lokubola okuwuketshezi elingu-104 degrees lokushisa lokubumba elingu-135 kuya ku-160 degrees.
4. I-ejenti enciphayo ephansi evame ukusetshenziswa ngama-resin thermoplastic, ukusetshenziswa kokunwetshwa kokushisa ukuze kulungiswe ukufinyela kokubumba. Ngokuvamile, izinga lokuncipha kwemikhiqizo kufanele lilawulwe ku-0.1~0.3%, ngakho-ke umthamo kufanele ulawulwe ngokuqinile.
5. Izinto zokuqinisa: ukuhlanganisa okuvame ukusetshenziswa okucutshungulwe i-6 ~ 12mm imicu emifushane ende 6 i-flame retardant isebenzisa i-Al2O3.3H2O-based, enezela inani elincane le-flame retardant entsha equkethe i-phosphorus, i-alumina e-hydrated nayo idlala indima yokugcwalisa 7. Ama-Fillers anganciphisa izindleko zokuthuthukisa izakhiwo zikagesi kanye ne-flame retardancy. I-Calcium carbonate iyisigcwalisi esisetshenziswa isikhathi eside kunazo zonke esisebenza kahle kukonke, ngokuvamile ngendlela yokucolisa, i-micropowder ngemva kokwelashwa okuhlanganisiwe bese yengezwa.
Inqubo ye-BMC
1. Naka ukulandelana kokwengeza izinto. Kuxutshwe emshinini wokuxova ohlobo lwe-z, umshini wokuxova unomshini wokushisa, noma ngabe ukuxuba kuwumfaniswano kungabonwa ukunamathisela kombala noma umbala wekhabhoni ngokufanelekile, cishe imizuzu eyi-15 ~ 18.
2. I-fiber yengilazi enqamulelayo ukujoyina okokugcina, kusenesikhathi ukujoyina inombolo enkulu yemicu ephukile, ethinta amandla
3. Impahla ye-BMC kumele igcinwe ezingeni lokushisa eliphansi, ngokuvamile ku-10 degrees celsius, izinga lokushisa liphezulu, inhlaka engagcwalisiwe kulula ukuyixhumanisa nokuyiphulukisa, bese kuba nobunzima bokubumba.
4. Izinga lokushisa lokubumba: 140 degrees noma ngaphezulu, izinga lokushisa eliphezulu neliphansi lesikhunta 5 ~ 10 degrees, ingcindezi yokubumba i-7mpa noma kunjalo, isikhathi sokubamba 40 ~ 80s/mm
Ukuxilongwa kwezimboni
1. Ukuqhekeka komkhiqizo: inkinga yokuqhekeka komkhiqizo ijwayelekile, ikakhulukazi ebusika ezimweni zokushisa eziphansi. Okubizwa ngokuthi ukukhwabanisa kubhekisela emikhiqizweni ngokucindezeleka kwangaphakathi, umthelela wangaphandle noma izimo zemvelo kanye neminye imithelela ebusweni noma imifantu yangaphakathi.
2. Isixazululo; ikakhulukazi kusukela ezintweni ezingavuthiwe, isilinganiso kanye nenqubo yokuxazulula.
2.1 Ukukhethwa nokucutshungulwa kwezinto ezingavuthiwe
1) I-resin iyi-matrix ye-bmc, inhlaka ye-polyester engagcwele, i-vinyl ester,i-phenolic resin, i-melamine, njll. I-resin iwukwelapha komkhiqizo, ngamandla ayisisekelo. Ngakho-ke, ukusetshenziswa kwe-smc/bmc resin ekhethekile, i-resin yohlobo lwe-m-phenylene, i-m-phenylene resin kunohlobo lwe-o-phenylene lwe-viscosity ephezulu, ngakho-ke ngaphezu kwe-resin ngokwayo i-shrinkage incane, ingamukela ama-monomers amaningi ahlanganisayo, ukuze ukuminyana kukhuphuke, izinga lokuncipha liyancipha.
(2) engeza i-ejenti yokushwabana ephansi eyinhlanganisela; unsaturated polyester resin ephulukisa ukufinyela izinga kufika ku-5 ~ 8%, engeza ezihlukahlukene filler shrinkage kusengaphezu kuka-3%, imikhiqizo ngokuvamile shrinkage rate ezingaphezu kuka-0.4% ukuqhekeka, ngakho engeza resins thermoplastic, ukusetshenziswa thermoplastic resins ukuqeda ukunwetshwa ezishisayo kwezingxenye ukufinyela. i-pmma, i-ps engeza kanye nokuxuba kwe-monomer styrene nokuqedwa kokungcono, ukungezwa kwe-pmma Ukuqeda kungcono. Ukuncipha komkhiqizo kungalawulwa ku-0.1~0.3%.
(3) isigcwalisi, i-flame retardant, i-glass fiber; ubude be-glass fibre - ngokuvamile bu-6 ~ 12mm, ngezinye izikhathi ukuhlangabezana nezakhiwo eziphakeme zemishini ukuya ku-25mm; ukuze kuhlangatshezwane nezidingo zokubunjwa kwe-fluidity, ku-3mm. ingilazi fiber okuqukethwe ngokuvamile 15% ~ 20%; emikhiqizweni esebenza kahle kakhulu, ukuya ku-25%. Okuqukethwe kwe-fiber yengilazi ye-BMC kuphansi kune-SMC, ungangeza isigcwalisi esiningi, ngakho-ke izindleko ziphansi ukuze wenze isigcwalisi esingaphili. Iphansi ukuze wenze isigcwalisi esingaphili, i-flame retardant, i-glass fiber kanye ne-resin ibe nenhlanganisela yamakhemikhali phakathi kokusetshenziswa okuvamile kokwelashwa kwe-silane coupling ejenti ngaphambi kokuxuba, okuvame ukusetshenziswa i-KH-560, umphumela we-KH-570 kuhle ukujoyina okuqinile kuhle, izinto ezibonakalayo ezincane, njenge-calcium carbonate enezinga elincane, usayizi wezinhlayiyana 0 kuya ku-12 usayizi wezinhlayiyana 0 kuya ku-12
2.2 Izidingo zokulinganisa ze-BMC ze-BMC base resin, inani alikwazi ukuba ngaphansi kuka-20%, inani lalo lomqalisi elihlobene nenani le-ejenti exhumanisayo ngokuyisisekelo akudingeki ukuthi lingeze inani le-ejenti yokuxhumanisa kokuqukethwe kwe-resin okubalwe ku-35%, ngaphezu kwenani le-ejenti yokuncipha ephansi ukujoyina futhi kuncike enanini le-resin. Ukusetshenziswa kwe-agent ephezulu yokushisa yokushisa i-TBPB, i-filler kanye ne-flame retardant (i-aluminium hydroxide) ukujoyina inani eliphelele elingaba ngu-50% lifaneleka kakhulu, liphindwe kabili kune-resin, liningi kakhulu ukujoyina amandla esakhiwo lonakalisiwe, kulula ukuqhekeka!
2.3 Izimo zenqubo yokukhiqiza
(1) ukuxuba, okokuqala, lapho uxuba izinto ezizoxutshwa ngokulinganayo, impushana kuqala yengeze amandla adonsela phansi amancane athile, bese wengeza amandla adonsela phansi amakhulu, uketshezi luxutshwa kuqala bese lwengezwa, umqalisi ungowokugcina ukungezwa, i-thickener kufanele yengezwe ngaphambi kokunamathisela kwe-resin nokuxova i-polystyrene. I-glass fiber yengezwa ngamaqoqo
(2) izimo zenqubo yokubumba: imingcele yenqubo yokubumba ithinta ngokuqondile umkhiqizo omuhle noma omubi. Ngokuvamile ngokwanda kokucindezela kokubumba, ukuncipha kuncipha. Izinga lokushisa lesikhunta liphezulu kakhulu lizokwenza umugqa wokuhlanganisa ubuso, izinto azifani, ukucindezeleka kwangaphakathi kuhlukile, kulula ukuqhekeka. Ukubamba ingcindezi yokwelulwa kwesikhathi esifanele kusiza ekuvimbeleni ukuqhekeka kwezingxenye.
(3) preheating insulation system: izinga lokushisa eliphansi izingxenye kulula ukuqhekeka. Ngakho-ke, impahla kufanele ishiswe kuqala
Isikhathi sokuthumela: Jun-10-2025
