BMC ke khutsufatso eaMotsoako oa Bulk Moldingka Senyesemane, lebitso la Sechaena ke Bulk Molding Compound (eo hape e bitsoang: unsaturated polyester glass fiber reinforced Bulk Molding Compound) ka resin ea metsi, shrinkage agent, crosslinking agent, initiator, filler, short-cut glass fiber flakes le likarolo tse ling tsa motsoako oa 'mele oa motsoako, mocheso le maemo a khatello, crosslinking ea polymer e sa tsitsang le karabelo e sa tsitsang. Tlas'a mocheso le khatello, polyester ea unsaturated le styrene li hokahane 'me li phekoloa ke karabelo ea polymerization. Thepa ea eona e ntle haholo ea mochini le lisebelisoa tse ntle tsa motlakase, le ho hanyetsa mocheso le thepa e ntle ea ts'ebetso li sebelisoa haholo lisebelisoa tsa motlakase, lisebelisoa, tlhahiso ea likoloi, lifofane, lipalangoang, indasteri ea kaho.
Mokhoa oa ho theha
1. Unsaturated polyester resin: e nang le smc / bmc resin e khethehileng, haholo-holo m-phenyl holimo, ho hanyetsa tšusumetso, ho hanyetsa kutu, ho hanyetsa arc, ho loketse bakeng sa tlhahiso ea li-block kapa lihlahisoa tsa anisotropic.
2. Crosslinking agent; ka monomer styrene, palo ea up30% ~ 40%, ho itšetlehile ka likahare tsa li-bond tse peli ka polyester e sa soaturated le karolo ea li-bond tse peli tsa trans double bond le cis double bond, karolo e phahameng ea li-crosslinking monomers, li ka fumana phekolo e feletseng.
3. The initiator e nang le mocheso o phahameng oa pheko, tert-butyl peroxybenzoate (TBPB) ke ea hangata e sebelisoang e le mocheso o phahameng oa mocheso, mocheso oa ho senyeha ha metsi oa likhato tse 104 mocheso oa ho bōpa oa likhato tse 135 ho isa ho tse 160.
4. Moemeli oa shrinkage o tlaase o atisa ho sebelisa li-resin tsa thermoplastic, tšebeliso ea ho atolosoa ha mocheso ho fokotsa sekhahla sa ho bōpa. Ka kakaretso, sekhahla sa shrinkage sa lihlahisoa se lokela ho laoloa ho 0.1 ~ 0.3%, kahoo litekanyetso li lokela ho laoloa ka thata.
5. Lisebelisoa tsa ho matlafatsa: ka kakaretso e sebelisoa coupling sebetswa 6 ~ 12mm nako e telele likhoele tse khutsoanyane 6 lelakabe retardant sebelisa Al2O3.3H2O-based, ho eketsa e nyenyane ea e ncha phosphorus-e nang le malakabe retardant, hydrated alumina e boetse e phetha karolo ea ho tlatsa 7. Fillers ka fokotsa litšenyehelo tsa ho ntlafatsa thepa ea motlakase le lelakabe retardancy. Calcium carbonate ke setlatsi se selelele ka ho fetisisa se sebelisitsoeng se nang le ts'ebetso e ntle ka kakaretso, ka kakaretso e le sebopeho se setle, sa micropowder kamora ho kopanya kalafo ebe sea eketsoa.
Mokhoa oa BMC
1. Ela hloko tatellano ea lisebelisoa tsa ho eketsa. Mochini oa ho luba o kopantsoe ka mochini oa z-mofuta o nang le sesebelisoa sa ho futhumatsa, hore na ho kopanya ho tšoana ho ka bonoa pente ea mebala kapa mebala ea khabone ka mokhoa o ts'oanang, e ka bang metsotso e 15 ~ 18.
2. Fiber ea khalase e khuts'oane ho ikopanya le ea ho qetela, pele ho nako ho ikopanya le palo e kholo ea likhoele tse robehileng, tse amang matla a
3. Thepa ea BMC e tlameha ho bolokoa ka mocheso o tlase, hangata e le likhato tse 10 tsa Celsius, mocheso o phahame, resin e sa tsitsang e bonolo ho tšela le ho folisa, ebe e sebetsana le mathata a ho bopa.
4. Molding mocheso: 140 likhato kapa ho feta, ka holimo le ka tlaase hlobo mocheso 5 ~ 10 likhato, molding khatello 7mpa kapa joalo, ho tšoara nako 40 ~ 80s/mm
Tlhahlobo ea indasteri
1. Ho phatloha ha lihlahisoa: bothata ba ho senya sehlahisoa bo tloaelehile, haholo-holo nakong ea mariha maemo a tlaase a mocheso. Seo ho thoeng ke ho qhekella ho bolela lihlahisoa ka khatello ea kelello ea ka hare, tšusumetso ea ka ntle kapa maemo a tikoloho le liphello tse ling holim'a metsi kapa mapetsong a ka hare.
2. Tharollo; ka ho khetheha ho tsoa ho lisebelisoa tse tala, tekanyo le mokhoa oa ho rarolla.
2.1 Khetho le ts'ebetso ea lisebelisoa tse tala
1) Resin ke matrix a bmc, unsaturated polyester resin, vinyl ester,phenolic resin, melamine, joalo-joalo. Resin ke sehlahisoa se phekolang, ka matla a mantlha. Ka hona, tšebeliso ea resin e khethehileng ea smc/bmc, ke resin ea mofuta oa m-phenylene, resin ea m-phenylene ho feta mofuta oa o-phenylene oa viscosity e phahameng, ka hona, ho phaella ho resin ka boeona, shrinkage e nyenyane, e ka amohela li-monomers tse ngata tsa crosslinking, e le hore boima ba sekhahla bo fokotsehe, sekhahla sa ho fokotseha se fokotsehe.
(2) eketsa motsoako o tlase oa shrinkage agent; Unsaturated polyester resin e folisang sekhahla se fihlang ho 5 ~ 8%, eketsa mefuta e fapaneng ea shrinkage ea li-filler e ntse e feta 3%, lihlahisoa ka kakaretso li fokotseha ka sekhahla sa ho phatloha ho feta 0.4%, kahoo eketsa li-resin tsa thermoplastic, ts'ebeliso ea li-resin tsa thermoplastic ho felisa katoloso e futhumetseng ea likarolo tsa pholiso. pmma, ps eketsa le monomer styrene ho kopanya le ho qhibiliha ha molemo, ho eketsoa ha pmma Qetellong ho molemo. Ho fokotseha ha lihlahisoa ho ka laoloa ho 0.1 ~ 0.3%.
(3) filler, retardant flame, glass fiber; bolelele ba fiber ea khalase - ka kakaretso ke 6 ~ 12mm, ka linako tse ling ho kopana le thepa e phahameng ea mochine ho 25mm; ho fihlela litlhoko tsa ho bopa fluidity, ho 3mm. likhalase tsa fiber hangata ke 15% ~ 20%; bakeng sa lihlahisoa tse sebetsang hantle, ho isa ho 25%. Likahare tsa fiber ea khalase ea BMC li tlase ho feta SMC, o ka eketsa li-filler, kahoo litšenyehelo li tlase ho etsa li-inorganic filler. Tlase e le ho etsa hore inorganic filler, flame retardant, glass fiber le resin li na le motsoako oa lik'hemik'hale pakeng tsa tšebeliso e tloaelehileng ea silane coupling moemeli kalafo pele ho kopanya, hangata e sebelisoa KH-560, KH-570 phello e ntle ho kopanya lintho tse tiileng ke lintho tse ntle, tse nang le micronized, tse kang k'halsiamo e boima ea carbonate e nang le micronized grade, particle0 to 12 quilent 1 ~ 12
2.2 BMC proportioning litlhokahalo Bmc base resin, chelete e ke ke ea ka tlaase ho 20%, palo ea eona ea initiator e amanang le palo ea crosslinking agent ha e le hantle ha ho hlokahale hore e kenyellelitse palo ea crosslinking agent ka har'a resin content accounted for 35%, ho phaella ho palo ea low shrinkage agent ho ikopanya le eona e itšetlehile ka palo ea resin. Tšebeliso ea mocheso o phahameng oa mocheso o phekola TBPB, filler le flame retardant (aluminium hydroxide) ho ikopanya le kakaretso ea hoo e ka bang 50% e loketse ho feta, e na le makhetlo a mabeli ho feta resin, e ngata haholo ho kopanya matla a mohaho o senyehile, ho bonolo ho senya!
2.3 Maemo a ts'ebetso ea tlhahiso
(1) ho kopanya, pele ho tsohle, ha o kopanya thepa e lokelang ho tsoakoa ka mokhoa o ts'oanang, phofo pele e eketsa matla a khoheli a itseng, ebe o eketsa matla a khoheli a itseng, mokelikeli o tsoakane pele ebe oa eketsoa, mothehi ke oa ho qetela oa ho eketsoa, thickener e lokela ho ekeletsoa pele ho peista ea resin le polystyrene kneading. Fiber ea khalase e kenngoa ka lihlopha
(2) maemo a tshebetso ea ho bopa: mekhoa ea ho bōpa e ama ka ho toba sehlahisoa se setle kapa se sebe. Hangata ka ho eketseha ha khatello ea ho bōpa, shrinkage e fokotseha. Mocheso oa hlobo o phahame haholo o tla theha mohala oa ho kopanya holimo, thepa ha e tšoane, khatello ea ka hare e fapane, e bonolo ho phunyeha. Ho tšoara khatello bakeng sa ho eketsa nako e loketseng ho thusa ho thibela ho phunyeha ha likarolo.
(3) preheating insulation system: likarolo tse tlase tsa mocheso li bonolo ho peperana. Ka hona, thepa e lokela ho futhumatsoa pele
Nako ea poso: Jun-10-2025
