BMC takaitaccen bayani neBabban Molding CompoundA Turanci, sunan Sinanci shine Bulk Molding Compound (wanda kuma ake kira: unsaturated polyester glass fiber encirified Bulk Molding Compound) ta hanyar ruwa resin, low screwing agent, crosslinking agent, initiator, filler, short-cut glass fiber flakes da sauran sassan na zahiri cakuda hadaddun, a cikin yanayin zafi da matsin lamba, crosslink of unsaturated polyester da styrene, polymerization reaction yana faruwa. A ƙarƙashin zafin jiki da matsin lamba, unsaturated polyester da styrene suna haɗuwa kuma suna warkewa ta hanyar polymerization reaction. Kyakkyawan halayen injiniya da kyawawan halayen lantarki, da juriya ga zafi da kyawawan halayen sarrafawa ana amfani da su sosai a cikin kayan lantarki, kayan aiki, kera motoci, jiragen sama, sufuri, masana'antar gini.
Tsarin tsari
1. Resin polyester mara cikakken ƙarfi: tare da resin musamman na smc/bmc, galibi m-phenyl up, juriyar tasiri, juriyar tsatsa, juriyar baka, ya dace da samar da kayayyakin toshe ko anisotropic
2. Maganin haɗin gwiwa; tare da monomer styrene, adadin sama da 30% ~ 40%, ya danganta da abun da ke cikin haɗin gwiwa biyu a cikin polyester mara cika da rabon haɗin gwiwa biyu na trans da haɗin gwiwa biyu na cis, babban rabo na monomers masu haɗin gwiwa, na iya samun cikakken waraka
3. Mai farawa da maganin warkar da zafin jiki mai zafi, tert-butyl peroxybenzoate (TBBB) yana cikin maganin warkar da zafin jiki mai zafi da ake amfani da shi akai-akai, zafin narkewar ruwa na digiri 104 na yanayin ƙera shi daga digiri 135 zuwa 160.
4. Maganin rage girman ƙashi wanda ake amfani da shi akai-akai na resin thermoplastic, amfani da faɗaɗa zafi don daidaita ƙashin ƙushin. Gabaɗaya, ya kamata a sarrafa ƙimar ƙashi na samfuran a 0.1 ~ 0.3%, don haka ya kamata a sarrafa yawan da ake buƙata sosai.
5. Kayan ƙarfafawa: haɗin da aka saba amfani da shi wanda aka sarrafa 6 ~ 12mm gajerun zare 6 masu hana harshen wuta ta amfani da Al2O3.3H2O, ƙara ƙaramin adadin sabon mai hana harshen wuta mai ɗauke da phosphorus, alumina mai hydrated shima yana taka rawar cikawa 7. Masu cikawa na iya rage farashin inganta halayen lantarki da hana harshen wuta. Calcium carbonate shine mafi tsayin cikawa da aka yi amfani da shi tare da kyakkyawan aiki gabaɗaya, gabaɗaya a cikin nau'in micropowder mai laushi bayan maganin haɗin gwiwa sannan a ƙara.
Tsarin BMC
1. Kula da jerin kayan ƙarawa. Injin ƙwanƙwasawa yana da na'urar dumamawa, ko da yake haɗin yana da daidaito, ana iya lura da manna launi ko canza launin carbon daidai gwargwado, kimanin minti 15 ~ 18
2. Zaren gilashi mai gajere don haɗawa na ƙarshe, da wuri don haɗawa da adadi mai yawa na zare da suka karye, yana shafar ƙarfin zaren
3. Dole ne a adana kayan BMC a ƙaramin zafin jiki, gabaɗaya a digiri 10 na Celsius, zafin yana da yawa, resin da ba shi da cikakken abinci yana da sauƙin haɗawa da warkarwa, sannan kuma ana iya sarrafa shi ta hanyar ƙera shi.
4. Zafin gyaran fuska: digiri 140 ko makamancin haka, zafin mold na sama da na ƙasa digiri 5 ~ 10, matsin lamba na gyaran fuska 7mpa ko makamancin haka, lokacin riƙewa 40 ~ 80s/mm
Ganewar Masana'antu
1. Fashewar samfura: matsalar fasawar samfura abu ne da ya zama ruwan dare, musamman a yanayin sanyi mai ƙarancin zafi. Abin da ake kira fasawar samfura yana nufin ta hanyar damuwa ta ciki, tasirin waje ko yanayin muhalli da sauran tasirin da ke kan saman ko fasawar ciki.
2. Magani; musamman daga albarkatun ƙasa, rabo da tsari don warwarewa.
2.1 Zaɓa da sarrafa kayan aiki
1) Resin shine matrix na BMC, resin polyester mara cika, vinyl ester,resin phenolic, melamine, da sauransu. Resin shine maganin da ke warkar da samfurin, tare da ƙarfin asali. Saboda haka, amfani da resin na musamman na smc/bmc, resin ne na m-phenylene, resin m-phenylene fiye da nau'in o-phenylene mai yawan danko, don haka ban da resin kanta ƙaramar raguwa ce, tana iya karɓar ƙarin monomers masu haɗin gwiwa, don haka yawan yawa yana ƙaruwa, ƙimar raguwa yana raguwa.
(2) ƙara wani abu mai ƙarancin raguwar raguwa; ƙarancin raguwar raguwar resin polyester mai ƙarancin cikawa har zuwa 5 ~ 8%, ƙara nau'ikan raguwar cikawa har yanzu yana da fiye da 3%, samfuran gabaɗaya ƙimar raguwar raguwar fiye da 0.4% don fashewa, don haka ƙara resin thermoplastic, amfani da resin thermoplastic don kawar da faɗaɗa zafi na matsewar matsewar sassan. haɗa pmma, ƙara ps da monomer styrene da narkewa mafi kyau, ƙara pmma Ƙarshen ya fi kyau. Ana iya sarrafa raguwar samfur a 0.1 ~ 0.3%.
(3) mai cikewa, mai hana harshen wuta, zaren gilashi; tsawon zaren gilashi - gabaɗaya 6 ~ 12mm, wani lokacin don biyan manyan halayen injiniya zuwa 25mm; don biyan buƙatun ruwan ƙira, zuwa 3mm. Yawan zaren gilashi yawanci 15% ~ 20% ne; don samfuran da ke da babban aiki, zuwa 25%. Yawan zaren gilashin BMC ya fi ƙasa da SMC, zaku iya ƙara ƙarin mai cikawa, don haka farashin ya yi ƙasa don yin cika mara organic. Ƙasa don yin cika mara organic, mai hana harshen wuta, zaren gilashi da resin suna da haɗin sinadarai tsakanin amfani gabaɗaya na maganin wakilin haɗin silane kafin haɗawa, tasirin KH-560 da aka saba amfani da shi, KH-570 yana da kyau a haɗa daskararrun suna da kyau, kayan micronized, kamar babban calcium carbonate tare da matakin micronized, girman barbashi 1 ~ 10um (daidai da raga 1250)
2.2 Bukatun daidaitawa na BMC: Resin tushe na Bmc, adadin ba zai iya zama ƙasa da kashi 20% ba, adadin mai farawa da ya shafi adadin wakilin haɗin gwiwa ba lallai bane ya ƙara adadin wakilin haɗin gwiwa a cikin abun da ke cikin resin ya kai kashi 35%, ban da adadin wakilin raguwar raguwa da za a haɗa shi ya dogara da adadin resin. Amfani da wakilin warkarwa mai zafi mai zafi TBPB, cikawa da mai hana harshen wuta (aluminum hydroxide) don haɗawa jimlar adadin kusan kashi 50% ya fi dacewa, ya ninka resin sau biyu, ya yi yawa don haɗuwa da ƙarfin tsarin ya lalace, yana da sauƙin fashewa!
2.3 Yanayin tsarin samarwa
(1) haɗawa, da farko dai, lokacin da ake haɗa kayan da za a haɗa daidai gwargwado, foda da farko yana ƙara ƙaramin nauyi na musamman, sannan a ƙara babban nauyi na musamman, ana fara haɗa ruwan sannan a ƙara, mai farawa shine na ƙarshe da za a ƙara, ya kamata a ƙara mai kauri kafin a shafa manna resin da polystyrene. Ana ƙara zare na gilashi a cikin rukuni-rukuni.
(2) yanayin tsarin ƙera: sigogin tsarin ƙera yana shafar samfurin kai tsaye ko mara kyau. Yawanci tare da ƙaruwar matsin lamba na ƙera, raguwar raguwar ƙwaya yana raguwa. Zafin ƙwaya ya yi yawa zai samar da layin haɗa saman, kayan ba iri ɗaya ba ne, damuwar ciki ta bambanta, mai sauƙin fashewa. Riƙe matsin lamba don tsawaita lokaci mai dacewa yana da amfani ga hana tsagewar sassan.
(3) tsarin dumamawa kafin lokaci: sassan ƙananan zafin jiki suna da sauƙin fashewa. Saboda haka, ya kamata a sanya kayan a cikin wuta mai zafi.
Lokacin Saƙo: Yuni-10-2025
