BMC ipfupiso yeshoko rekutiHuru Kuumba KombiyutaMuchirungu, zita rechiChinese rinonzi Bulk Molding Compound (inonziwo: unsaturated polyester glass fiber reinforced Bulk Molding Compound) ne liquid resin, low shrinkage agent, crosslinking agent, initiator, filler, short-cut glass fiber flakes nezvimwe zvikamu zvemusanganiswa chaiwo we complex, mumamiriro ekupisa nekumanikidzwa, crosslinking ye unsaturated polyester ne styrene, polymerization reaction inoitika. Pasi pekupisa nekumanikidzwa, unsaturated polyester ne styrene zvinosanganiswa uye zvinoporeswa ne polymerization reaction. Hunhu hwayo hwakanaka hwemakanika uye hunyanzvi hwemagetsi hwakanaka, uye kupisa uye hunyanzvi hwekugadzirisa hunoshandiswa zvakanyanya mumidziyo yemagetsi, zvishandiso, kugadzira mota, ndege, kutakura, maindasitiri ekuvaka.
Sisitimu yekugadzira
1. Polyester resin isina kuzara: ine smc/bmc special resin, kunyanya m-phenyl up, inodzivirira kukanganiswa, inodzivirira ngura, inodzivirira arc, yakakodzera kugadzirwa kwezvigadzirwa zve block kana anisotropic
2. Mushonga wekubatanidza mativi; ne monomer styrene, huwandu hunosvika 30% ~ 40%, zvichienderana nehuwandu hwemabhondi maviri mupolyester isina kuguta uye huwandu hwemabhondi maviri e trans uye mabhondi maviri e cis, huwandu hwakawanda hwemamonomers anobatanidza mativi, hunogona kuwana kupora kwakakwana.
3. Mudziyo une mushonga wekupisa wepamusoro, tert-butyl peroxybenzoate (TBB) inhengo yemushonga wekupisa wepamusoro unoshandiswa zvakanyanya, tembiricha yekuora kwemvura ye104 degrees molding tembiricha ye135 kusvika 160 degrees.
4. Mushonga wekudzikisa zvishoma unowanzo shandiswa nemaresini ethermoplastic, uchishandisa kuwedzera kwekupisa kuti udzivise kudzikira kwekuumbwa. Kazhinji, mwero wekudzikisa kwezvigadzirwa unofanirwa kudzorwa pa0.1 ~ 0.3%, saka chiyero chinofanira kudzorwa zvakanyanya.
5. Zvinhu zvekusimbisa: inowanzo shandiswa coupling yakagadzirwa 6 ~ 12mm refu mafibre mapfupi 6 6 murazvo unodzivirira uchishandisa Al2O3.3H2O-based, kuwedzera huwandu hushoma hwemurazvo unodzivirira une phosphorus, alumina yakanyungudutswa inoitawo basa re filler 7. Fillers dzinogona kuderedza mutengo wekuvandudza hunhu hwemagetsi uye murazvo unodzivirira. Calcium carbonate ndiyo filler inoshandiswa kwenguva refu ine mashandiro akanaka, kazhinji muchimiro che micropowder yakanaka mushure me coupling therapy uye yozowedzerwa.
Maitiro eBMC
1. Teerera kutevedzana kwekuwedzera zvinhu. Muchina wekukanya une mudziyo wekudziyisa wakasanganiswa muchina wekukanya wemhando ye z, uye kusanganisa kwacho kwakafanana, kungave kwakafanana kana kuti kwakafanana, kunogona kuonekwa kupenda kwemavara kana kuti carbon, kwemaminitsi angangoita 15 ~ 18.
2. Fiber yegirazi yakachekwa pfupi kuti ibatanidze yekupedzisira, yekutanga kuti ibatanidze nhamba yakawanda yefibers dzakaputsika, zvichikanganisa simba re
3. Zvinhu zveBMC zvinofanira kuchengetwa patembiricha yakaderera, kazhinji pa10 degrees Celsius, tembiricha yacho yakakwira, resin isina kuguta iri nyore kubatanidza nekuporesa, uye kugadzirisa matambudziko ekuumba.
4. Kupisa kwekugadzira: 140 degrees kana zvakadaro, tembiricha yepamusoro neyepasi yemuforoma 5 ~ 10 degrees, kumanikidzwa kwekugadzira 7mpa kana zvakadaro, nguva yekubata 40 ~ 80s/mm
Kuongorora chirwere cheindasitiri
1. Kutsemuka kwechigadzirwa: dambudziko rekutsemuka kwechigadzirwa rinowanzoitika, kunyanya munguva yechando. Zvinonzi kutsemuka zvinoreva zvigadzirwa nekumanikidzwa kwemukati, kukanganiswa kwekunze kana mamiriro ezvakatipoteredza uye zvimwe zvinokanganisa pamusoro kana mutsemuka wemukati.
2. Mhinduro; kunyanya kubva pazvinhu zvakagadziriswa, chiyero uye maitiro ekugadzirisa.
2.1 Kusarudzwa uye kugadziriswa kwezvinhu zvakagadzirwa
1) Resin ndiyo matrix yebmc, unsaturated polyester resin, vinyl ester,resin yephenolic, melamine, nezvimwewo. Resin ndiyo inogadzirisa chigadzirwa, ine simba guru. Saka, kushandiswa kwe smc/bmc special resin, i m-phenylene type resin, m-phenylene resin ine viscosity yakakwira kupfuura o-phenylene type, saka kuwedzera kune resin pachayo shrinkage idiki, inogona kugamuchira ma monomers akawanda anobatana, kuitira kuti density ye density iwedzere, shrinkage rate iderere.
(2) Wedzera musanganiswa we shrinkage yakaderera; unsaturated polyester resin kuporesa contraction rate inosvika 5 ~ 8%, wedzera shrinkage yekuzadza yakawanda inopfuura 3%, zvigadzirwa zvinowanzo shrinkage rate inopfuura 0.4% yekutsemuka, saka wedzera thermoplastic resins, shandisa thermoplastic resins kubvisa thermoplastic contraction expansion yezvikamu. Kusanganisa ps ne monomer styrene nekunyunguduka kuri nani, kuwedzera pmma. Kupedzisa kuri nani. Kuderedza chigadzirwa kunogona kudzorwa pa 0.1 ~ 0.3%.
(3) filler, murazvo unodzivirira moto, girazi fiber; girazi fiber kureba - kazhinji 6 ~ 12mm, dzimwe nguva kusvika 25mm; kuti zvizadzise zvinodiwa zvekuumba, kusvika 3mm. girazi fiber huwandu hunowanzova 15% ~ 20%; kune zvigadzirwa zvinoshanda zvakanyanya, kusvika 25%. BMC girazi fiber huwandu hwakaderera pane SMC, unogona kuwedzera filler yakawanda, saka mutengo wakaderera kuti ugadzire inorganic filler. Kuti ugadzire inorganic filler, murazvo unodzivirira moto, girazi fiber uye resin zvine musanganiswa wemakemikari pakati pekushandiswa kwakajairika kwekurapa silane coupling agent usati wasanganisa, inowanzoshandiswa KH-560, KH-570 mhedzisiro yakanaka yekubatanidza yakasimba, zvinhu zvakagadzirwa ne micronized, senge heavy calcium carbonate ine micronized grade, saizi ye particle 1 ~ 10um (yakaenzana ne 1250 mesh)
2.2 Zvinodiwa zveBMC kuenzanisa Bmc base resin, huwandu hwayo hahufaniri kuva pasi pe20%, huwandu hwayo hwekutanga hunoenderana nehuwandu hwe crosslinking agent hazvidi kuwedzera huwandu hwe crosslinking agent mu resin content hwakaverengerwa 35%, kuwedzera huwandu hwe shrinkage agent yakaderera yekubatanidza zvinoenderanawo nehuwandu hwe resin. Kushandisa high-tembiricha curing agent TBPB, filler uye flame retardant (aluminium hydroxide) kubatanidza huwandu hwese hweinenge 50% kwakakodzera, zvakapetwa kaviri pane resin, simba rechimiro rakawandisa rinokuvadzwa, zviri nyore kutsemuka!
2.3 Mamiriro ekugadzira
(1) kusanganisa, kutanga, kana muchisanganisa zvinhu zvinosanganiswa zvakaenzana, hupfu hunotanga hwawedzera simba diki, wobva wawedzera simba guru, mvura inosanganiswa kutanga yozowedzerwa, chinotanga ndicho chekupedzisira kuwedzerwa, chinogocha chinofanira kuwedzerwa usati wasanganisa resin paste nepolystyrene. Girazi fiber rinowedzerwa muzvikamu
(2) mamiriro ekugadzira: maparamita ekugadzira anokanganisa zvakananga chigadzirwa zvakanaka kana zvakaipa. Kazhinji nekuwedzera kwekumanikidzwa kwekugadzira, kuderera kunoderera. Tembiricha yekuumba yakanyanya kuumba mutsetse wekusanganisa pamusoro, zvinhu hazvina kufanana, kushushikana kwemukati kwakasiyana, kuri nyore kutsemuka. Kubata kumanikidzwa kwenguva yakakodzera kunobatsira kudzivirira kutsemuka kwezvikamu.
(3) sisitimu yekudzivirira kupisa: zvikamu zvekupisa kwakaderera zviri nyore kutsemuka. Saka, zvinhu zvinofanira kunge zvakapiswa kare
Nguva yekutumira: Chikumi-10-2025
