BMC waa soo gaabintaIsku-xidhka Wax-qabashada BulkIngiriisi, magaca Shiinaha waa Bulk Molding Compound (sidoo kale loo yaqaan: fiber polyester unsaturated fiber xoojisay Bulk Molding Compound) by xabagta dareeraha ah, wakiilka yaraynta hoose, wakiilka crosslinking, initiator, buuxinta, flakes fiber galaas-gaaban iyo qaybaha kale ee isku dhafka jireed ee kakanaanta, heerkulka iyo xaaladaha cadaadiska, crosslinking ee polyester-ka falcelinta. Heerkulka iyo cadaadiska hoostiisa, polyester-ka aan qoyaneyn iyo styrene ayaa isku-dhafan oo lagu daaweeyaa falcelinta polymerization. Guryaha farsamada ee aad u fiican iyo guryaha korantada ee ugu fiican, iyo iska caabinta kulaylka iyo sifooyinka wanaagsan ee wax soo saarka ayaa si ballaaran loogu isticmaalaa qalabka korontada, qalabka, wax soo saarka baabuurta, duulista, gaadiidka, warshadaha dhismaha.
Habka habaynta
1. Polyester resin aan saturated: oo leh smc/bmc resin gaar ah, badiyaa m-phenyl up, caabbinta saamaynta, iska caabin daxalka, caabbinta arc, ku haboon wax soo saarka ee block ama alaabta anisotropic
2. Wakiilka isku xidhka; oo leh monomer styrene, qadarka kor u kaca 30% ~ 40%, taas oo ku xidhan waxa ku jira bonds double ee polyester-ka unsaturated iyo saamiga trans double bonds iyo cis double bonds, saamiga sare ee monomers crosslinking, heli kartaa daaweyn dhamaystiran.
3. Bilawiyaha leh wakiilka heerkulka sare, tert-butyl peroxybenzoate (TBPB) waxaa iska leh wakiilka heerkulka sare ee inta badan la isticmaalo, heerkulka qudhunka dareere ah 104 heerkulbeeg heerkulkiisu yahay 135 ilaa 160 darajo.
4. Wakiilka yaraynta hoose ee caadi ahaan loo isticmaalo resins thermoplastic, isticmaalka balaadhinta kulaylka si kor loogu qaado foosha qaabaynta. Guud ahaan, heerka hoos u dhaca alaabooyinka waa in lagu xakameeyaa 0.1 ~ 0.3%, markaa qiyaasta waa in si adag loo xakameeyaa.
5. Qalabka xoojinta: guud ahaan la isticmaalo isku xidhka la warshadeeyey 6 ~ 12mm dheer fibers gaaban gaaban 6 ololka retardant isticmaalaya Al2O3.3H2O-ku salaysan, ku daray qadar yar oo fosfooraska-ka kooban cusub olol retardant, alumina hydrated ayaa sidoo kale ka ciyaara doorka buuxinta 7. Fillers waxay yareyn kartaa kharashka hagaajinta guryaha korontada iyo dib u dhac ololka. Kaalshiyam carbonate waa buuxinta ugu dheer ee la isticmaalo oo leh waxqabadka guud ee wanaagsan, guud ahaan qaab ganaax, micropowder ka dib marka la isku daro daaweynta ka dibna lagu daro.
Habka BMC
1. U fiirso sida ay isugu xigto alaabta. Mashiinka cajiinka ee nooca z-ka ah, mashiinka cajiintu wuxuu leeyahay qalab kuleyl ah, haddii isku darka la mid yahay waxaa lagu arki karaa koollada midabka ama midabaynta kaarboon si isku mid ah, qiyaastii 15 ~ 18 daqiiqo
2. Fiber-gaaban oo galaas ah si uu ugu biiro kan ugu dambeeya, goor hore si uu ugu biiro tiro badan oo fiilooyinka jaban, saamaynaya xoogga
3. Walxaha BMC waa in lagu kaydiyaa heerkul hoose, guud ahaan 10 darajo Celsius, heerkulku waa sarreeyaa, resinka aan saturated ahayn waa sahlan tahay in la isku xidho oo la daweeyo, ka dibna la hagaajiyo dhibaatooyinka qaabeynta.
4. Heerkulka qaabeynta: 140 darajo ama wax ka badan, heerkulka caaryada sare iyo kan hoose 5 ~ 10 darajo, cadaadiska qaabeynta 7mpa ama wax la mid ah, waqtiga haynta 40 ~ 80s / mm
Ogaanshaha warshadaha
1. Dilaaca badeecada: dhibaatada alaabtu waa wax caadi ah, gaar ahaan xilliga jiilaalka xaaladaha heerkulka hooseeya. Waxa loogu yeero dildilaaca waxaa loola jeedaa alaabooyinka cadaadiska gudaha, saameynta dibadda ama xaaladaha deegaanka iyo saameynta kale ee dusha sare ama dildilaaca gudaha.
2. Xalka; gaar ahaan laga soo bilaabo alaabta ceeriin, saamiga iyo habka loo xalliyo.
2.1 Xulashada iyo habaynta alaabta ceeriin
1) Resin waa shaxanka bmc, xabagta polyester-ka aan saturated, vinyl ester,resin phenolic, melamine, iwm. Resin waa daaweynta alaabta, oo leh xoogga aasaasiga ah. Sidaa darteed, isticmaalka smc/bmc xabagta gaarka ah, waa nooc m-phenylene ah, m-phenylene resin ka badan nooca o-phenylene ee viscosity sare, marka lagu daro resin laftiisa yaraynta waa yar yahay, aqbali karo monomers badan crosslinking, si cufnaanta ee cufnaanta korodho, heerka hoos u dhaco
(2) ku dar wakiilka yaraynta hoose ee isku dhafan; Polyester resin unsaturated heerka foosha ee ilaa 5 ~ 8%, ku dar noocyo kala duwan oo yaraynta buuxinta ayaa weli ka badan 3%, alaabooyinka guud ahaan hoos u dhaca in ka badan 0.4% si ay u dillaacaan, sidaa darteed ku dar resins thermoplastic, isticmaalka resins thermoplastic si loo baabi'iyo ballaarinta kulaylka ee foosha bogsashada ee qaybaha. pmma, ps add iyo monomer styrene isku darka iyo kala dirida ka wanaagsan, ku darida pmma Dhamaystirka ayaa fiican. Yaraynta alaabta waxaa lagu xakameyn karaa 0.1 ~ 0.3%.
(3) buuxinta, ololka retardant, fiber galaas; dhererka fiber galaas - guud ahaan 6 ~ 12mm, mararka qaarkood si ay ula kulmaan guryaha farsamo sare ilaa 25mm; si loo buuxiyo shuruudaha dareeraha wax-qabashada, ilaa 3mm. Maaddooyinka fiber galaas caadi ahaan waa 15% ~ 20%; alaabooyinka waxqabadka sare leh, ilaa 25%. Waxyaabaha ku jira fiber-ka galaas ee BMC wuu ka hooseeyaa SMC, waxaad ku dari kartaa buuxinta wax badan, markaa qiimuhu wuu ka hooseeyaa si loo sameeyo buuxinta aan organic ahayn. Hoose si ay u sameeyaan filler ah inorganic, olol retardant, fiber galaas iyo resin leeyihiin isku darka kiimikada u dhexeeya isticmaalka guud ee daawaynta wakiilka silane isku xidhka ka hor inta aan la isku qasin, sida caadiga ah loo isticmaalo KH-560, KH-570 saamaynta waa wanaagsan in ay ku biiraan adag yihiin, alaabta micronized, sida calcium culus carbonate leh darajo micronized, qayb size 12 ~ 10
2.2 BMC shuruudaha saamiga Bmc saldhiga, qadarku ma noqon karo wax ka yar 20%, qadarka bilawga ah ee la xidhiidha qadarka wakiilka crosslinking asal ahaan ma aha in lagu daro qadarka wakiilka crosslinking ee content xabagta lagu xisaabtamayo 35%, marka lagu daro qadarka yar ee wakiilka yaraynta in ay ku biiraan sidoo kale waxay ku xiran tahay qadarka resin. Isticmaalka wakiilka heerkulka sare ee TBPB, buuxinta iyo ololka ololka (aluminium hydroxide) si ay ugu biiraan wadarta guud ee ku saabsan 50% ayaa ku habboon, waa laba jeer ka badan inta resin, aad u badan si ay ugu biiraan xoogga qaabdhismeedka ayaa waxyeello u geysanaya, fududahay in la dillaaco!
2.3 Xaaladaha habka wax soo saarka
(1) isku darka, marka hore, marka la isku daro walxo isku dhafan oo isku mid ah, budada marka hore ku dar cufis yar oo gaar ah, ka dibna ku dar cufnaan gaar ah oo weyn, dareeraha waa la isku daraa marka hore ka dibna lagu daraa, bilawga ayaa ugu dambeeya in lagu daro, dhumucda waa in lagu daraa ka hor inta aan la isku dhejin xabagta iyo polystyrene. Fiber galaas ayaa lagu daraa qaybo
(2) xaaladaha habaynta qaabaynta: cabbiraadaha hab-samaynta waxay si toos ah u saameeyaan alaabta wanaag iyo xumaanba. Caadi ahaan korodhka cadaadiska wax-soo-saarka, hoos u dhaca ayaa hoos u dhacaya. Heerkulka caaryada aad ayuu u sarreeyaa wuxuu samayn doonaa xariiq isku dhafan oo dusha sare ah, maaddadu maaha mid la mid ah, walbahaarka gudaha waa ka duwan yahay, fududahay in la dillaaco. Cadaadiska oo lagu hayo wakhti kordhin ku habboon ayaa ka hortagaya dillaaca qaybaha.
(3) Nidaamka dahaarka preheating: qaybaha heerkulka hooseeya way fududahay in la dillaaco. Sidaa darteed, maaddadu waa in horay loo sii kululeeyaa
Waqtiga boostada: Jun-10-2025
