I-BMC sisishunqulelo seUkubunjwa kobuninzingesiNgesi, igama lesiTshayina yiBulk Molding Compound (ekwabizwa ngokuba yi: unsaturated polyester glass fibre eqinisiwe kwiBulk Molding Compound) yiresin engamanzi, iarhente yolwelo, i-agent ye-crosslinking, i-initiator, i-filler, iiflekhi zeglasi ezinqamlezileyo kunye nezinye iinxalenye zomxube womzimba we-complex, kwiqondo lobushushu kunye neemeko zoxinzelelo, i-crosslinking yepolymer engaxutywanga kunye ne-reactionrene. Ngaphantsi kobushushu kunye noxinzelelo, i-polyester engasetyenziswanga kunye ne-styrene zidibene kwaye zinyangwa yi-polymerization reaction. Iimpawu zayo ezigqwesileyo zomatshini kunye neempawu ezibalaseleyo zombane, kunye nokumelana nobushushu kunye neepropathi ezilungileyo zokulungisa zisetyenziswa kakhulu kwizixhobo zombane, izixhobo, ukwenziwa kweemoto, ukuhamba ngenqwelomoya, ezothutho, kumashishini okwakha.
Inkqubo yokuqulunqa
1. I-resin ye-polyester engaxutywanga: kunye ne-smc/bmc i-resin ekhethekileyo, ngokukodwa i-m-phenyl phezulu, ukuchasana kwempembelelo, ukumelana nokubola, ukumelana ne-arc, ilungele ukuveliswa kwebhloko okanye iimveliso ze-anisotropic.
2. I-arhente yokudibanisa; kunye ne-monomer styrene, isixa se-up30% ~ 40%, ngokuxhomekeke kumxholo weebhondi eziphindwe kabini kwipolyester engaxutywanga kunye nomyinge we-trans double bonds kunye ne-cis double bonds, umlinganiselo ophezulu we-crosslinking monomers, unokufumana unyango olupheleleyo.
3. Umqalisi one-agent ephilisayo yobushushu obuphezulu, i-tert-butyl peroxybenzoate (TBPB) yeye-arhente yokunyanga ubushushu obuphezulu obusetyenziswa ngokuqhelekileyo, iqondo lobushushu lokubola kolwelo lwe-104 degrees lokubumba ubushushu be-135 ukuya kwi-160 degrees.
4. I-arhente ye-shrinkage ephantsi esetyenziswa ngokuqhelekileyo i-resin thermoplastic, ukusetyenziswa kokwandiswa kobushushu ukucima ukunyathela kokubumba. Ngokuqhelekileyo, izinga le-shrinkage yeemveliso kufuneka ilawulwe kwi-0.1 ~ 0.3%, ngoko ke idosi kufuneka ilawulwe ngokungqongqo.
5. Izinto zokuqinisa: ukudibanisa ngokuqhelekileyo kusetyenziswe i-6 ~ 12mm ubude bemicu emifutshane 6 i-flame retardant isebenzisa i-Al2O3.3H2O-based, idibanisa inani elincinci le-phosphorous-containing flame retardant, i-alumina e-hydrated nayo idlala indima yokuzalisa 7. Iifayili zinokunciphisa iindleko zokuphucula iimpawu zombane kunye ne-flame retardancy. I-Calcium carbonate yeyona nto isetyenzisiweyo ixesha elide lokuzalisa kunye nokusebenza kakuhle ngokubanzi, ngokubanzi ngendlela ecolekileyo, i-micropowder emva kokudibanisa unyango kwaye yongezwa.
Inkqubo ye-BMC
1. Nika ingqalelo kulandelelwano lokongeza izinto. Uxutywe kumatshini wokuxova wohlobo lwe-z, umatshini wokuxova unesixhobo sokufudumeza, nokuba ukuxubana kuyafana kunokubonwa intlama yombala okanye umbala wekhabhoni ngokufanelekileyo ngokufanelekileyo, malunga nemizuzu eyi-15 ~ 18.
2. Ifayibha yeglasi enqamlezileyo yokudibanisa neyokugqibela, kwangoko ukujoyina inani elikhulu lemicu eyaphukileyo, echaphazela amandla
3. Izinto ze-BMC kufuneka zigcinwe kwiqondo lobushushu eliphantsi, ngokubanzi kwi-10 degrees Celsius, iqondo lobushushu liphezulu, i-resin engaxutywanga kulula ukuwela ukudibanisa kunye nokunyanga, kunye nobunzima bokubumba.
4. Iqondo lobushushu lokubumba: 140 degrees okanye kunjalo, ubushushu bomngundo ophezulu nasezantsi 5 ~ 10 degrees, uxinzelelo lokubumba 7mpa okanye njalo, ukubamba ixesha 40 ~ 80s/mm
Ukuxilongwa kwamashishini
1. Ukuqhekeka kwemveliso: ingxaki yokuqhekeka kwemveliso ixhaphakile, ngakumbi ebusika iimeko zobushushu obuphantsi. Okubizwa ngokuba yi-cracking ibhekisela kwiimveliso ngoxinzelelo lwangaphakathi, impembelelo yangaphandle okanye iimeko zokusingqongileyo kunye nezinye iimpembelelo kumphezulu okanye ukuqhekeka kwangaphakathi.
2. Isisombululo; ngokuthe ngqo kwimathiriyeli ekrwada, umlinganiselo kunye nenkqubo yokusombulula.
2.1 Ukukhethwa nokwenziwa kwezinto ezingasetyenziswanga
1) I-resin yi-matrix ye-bmc, i-polyester engaxutywanga, i-vinyl ester,phenolic resinI-melamine, njl. Ngoko ke, ukusetyenziswa kwe-smc / bmc i-resin ekhethekileyo, i-m-phenylene uhlobo lwe-resin, i-m-phenylene resin kune-o-phenylene uhlobo lwe-viscosity ephezulu, ngoko ke ukongeza kwi-resin ngokwayo i-shrinkage incinci, inokwamkela i-monomers ye-crosslinking, ukwenzela ukuba ukuxinana koxinzelelo kunyuke, kuyancipha izinga lokunyuka.
(2) yongeza i-ejenti edibeneyo yokunciphisa; Unsaturated polyester resin ephilisa ukucutheka izinga ukuya kuthi ga kwi-5 ~ 8%, yongeza ezahlukeneyo yokucutheka filler kusekho ngaphezu kwe-3%, iimveliso shrinkage ngokubanzi izinga ngaphezulu kwe-0.4% ukuqhekeka, ngoko ke yongeza resins thermoplastic, ukusetyenziswa thermoplastic resins ukuphelisa ukwandiswa thermal of thermal contraction. i-pmma, i-ps yongeza kunye ne-monomer styrene ukuxuba kunye nokuchithwa kwezinto ezingcono, ukongezwa kwe-pmma Ukugqitywa kungcono. Ukuncipha kwemveliso kunokulawulwa kwi-0.1 ~ 0.3%.
(3) isihluzi, i-flame retardant, i-fiber yeglasi; ubude beglasi yefiber - ngokubanzi 6 ~ 12mm, ngamanye amaxesha ukuhlangabezana neempawu eziphezulu zoomatshini ukuya kwi-25mm; ukuze kuhlangatyezwane neemfuno zokubumba ubumanzi, ukuya kwi-3mm. umxholo wefiber yeglasi udla ngokuba yi-15% ~ 20%; kwiimveliso ezisebenza kakhulu, ukuya kuma-25%. Isiqulatho sefayibha yeglasi ye-BMC iphantsi kune-SMC, unokongeza isihluzi esingaphezulu, ngoko ke ixabiso lisezantsi ukwenzela ukwenza isihluzi se-inorganic. Ngaphantsi ukwenzela ukuba i-inorganic filler, i-flame retardant, i-fiber yeglasi kunye ne-resin ibe nendibaniselwano yekhemikhali phakathi kokusetyenziswa ngokubanzi kwe-silane yokudibanisa i-agent yonyango ngaphambi kokuxuba, i-KH-560, isiphumo se-KH-570 ilungile ukudibanisa izinto eziqinileyo zilungile, izinto ezincinci, ezifana ne-calcium carbonate enzima kunye nebakala le-micronized, i-particle0 to 12 quilent 1 ~ 12
2.2 Iimfuno zokulinganisela BMC BMC isiseko resin, isixa ayikwazi ukuba ngaphantsi kwe-20%, isixa salo umqalisi ezinxulumene isixa arhente crosslinking ngokusisiseko musa ukuba ukongeza ukongeza isixa crosslinking arhente kumxholo resin kubalelwa 35%, ukongeza kwisixa arhente ukushwabana eliphantsi ukujoyina kwakhona kuxhomekeke kwisixa resin. Ukusetyenziswa kwe-agent ye-high-temperature yokunyanga i-TBPB, i-filler kunye ne-flame retardant (i-aluminium hydroxide) ukujoyina inani elipheleleyo malunga ne-50% efanelekileyo kakhulu, iphindwe kabini kune-resin, ininzi kakhulu yokudibanisa amandla esakhiwo yonakaliswe, kulula ukuqhekeka!
2.3 Iimeko zenkqubo yemveliso
(1) ukuxuba, okokuqala, xa uxuba izinto ezixutywe ngokulinganayo, umgubo kuqala wongeza ubunzima obuthile obuthile, kwaye emva koko udibanise umthamo omkhulu othile, ulwelo luxutywe kuqala kwaye longezwe, umqalisi ungowokugqibela ukongezwa, i-thickener kufuneka yongezwe phambi kokuba intlama ye-resin kunye ne-polystyrene yokuxova. Ifiber yeglasi yongezwa kwiibhetshi
(2) iimeko zenkqubo yokubumba: iiparamitha zenkqubo yokubumba zichaphazela ngokuthe ngqo imveliso elungileyo okanye embi. Ngokuqhelekileyo ngokunyuka koxinzelelo lokubumba, i-shrinkage iyancipha. Ukushisa kwe-Mold kuphezulu kakhulu kuya kwenza umgca wokudibanisa umphezulu, izinto eziphathekayo azifani, uxinzelelo lwangaphakathi luhlukile, kulula ukuqhekeka. Ukubamba uxinzelelo lokwandiswa kwexesha elifanelekileyo kulungelelaniswa nokuthintela ukuqhekeka kwamacandelo.
(3) inkqubo yokutshisa i-insulation preheating: iindawo zobushushu obuphantsi zilula ukuqhekeka. Ngoko ke, izinto eziphathekayo kufuneka zifudunyezwe
Ixesha lokuposa: Jun-10-2025
