Cov khoom siv BMC (DMC) yog cov ntawv luv ntawm cov khoom sib xyaw ua ke, uas yog, cov khoom sib xyaw ua ke ntau.Nws feem ntau hu ua unsaturated polyester pawg molding compound nyob rau hauv Suav teb.Nws cov ntaub ntawv tseem ceeb yog prepregs loj ua los ntawm GF (chopped iav fiber), nce (unsaturated resin), MD (filler calcium carbonate) thiab ntau yam additives.BMC cov ntaub ntawv yog thawj zaug siv nyob rau hauv yav dhau los lub teb chaws Yelemees sab hnub poob thiab teb chaws Aas Kiv nyob rau hauv lub xyoo 1960s, thiab tom qab ntawd tsim heev heev nyob rau hauv lub tebchaws United States thiab Nyiv nyob rau hauv lub xyoo 1970 thiab 1980s.VimBMC bulk molding compoundsmuaj cov khoom siv hluav taws xob zoo heev, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov tshuaj tiv thaiv corrosion, thiab hloov mus rau ntau yam txheej txheem molding, lawv tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm ntau yam khoom, yog li lawv nrov dua nrog cov neeg siv khoom.
(1) Cov yam ntxwv thiab kev siv ntawm BMC
BMC muaj lub cev zoo, hluav taws xob thiab cov khoom siv hluav taws xob, yog li nws tau siv dav, xws li ua cov khoom siv kho tshuab xws li cov khoom siv hauv lub cev, cov kav dej, lub hau npog, lub pob thiab lwm yam;Nws kuj yog siv dav hauv aviation, architecture, rooj tog zaum,cov khoom siv tu cevthiab lwm yam uas yuav tsum tau muaj av qeeg tiv thaiv, nplaim taws retardancy, kev zoo nkauj thiab kav ntev;Nyob rau hauv nws cov tsoos hluav taws xob teb, nws siv yog ntau thiab ntau dua.
(2) Cov khoom lag luam
Cov khoom siv hluav taws xob (insulator, hloov 29, meter box,Circuit Court breaker plhaub, davhlau ya nyob twg thaiv, ntau yam khoom siv hluav taws xob hauv tsev lossis kev lag luam hluav taws xob cov khoom siv hluav taws xob), cov khoom siv tsheb (lub teeb pom kev, lub qhov rooj, lub plhaub, thiab lwm yam), meter plhaub, cov khoom siv suab nrov.
(3) BMC txoj kev tsim
BMC txhaj tshuaj molding tshuab feem ntau yog cov txheej txheem rau BMC cov khoom siv ntau, uas raug yuam mus rau hauv BMC chim los ntawm BMC feeder, ces kis mus rau pem hauv ntej ntawm lub thoob los ntawm cov ntsia hlau, thiab ces txhaj rau hauv pwm kab noj hniav rau kho thiab molding.
BMC yog cov khoom siv thermosetting.Qhov kub ntawm lub thoob ntawm lub tshuab txhaj tshuaj molding yuav tsum tsis txhob siab dhau.Nws feem ntau yog teem rau ntawm 60 degrees los pab txhawb kev khiav ntawm cov ntaub ntawv.
BMC txhaj tshuaj molding tshuab yog tsuas yog cov cuab yeej tshaj lij los ua cov khoom siv thermosetting lumpy.Muaj cov txheej txheem hydraulic nyob rau hauv qhov chaw pub mis, uas yuam cov khoom lumpy mus rau hauv lub thoob thaum lub hau ntswj yuav tsum.BMC txhaj tshuaj molding tshuab yog tsim rau cov pwm nrog cov qauv complex, uas yog ua tiav los ntawm kev txhaj tshuaj molding, nrog cov khoom lag luam siab thiab kev siv zog tsawg.
BMC molding txoj kev muaj xws li compression molding, hloov moulding thiab txhaj tshuaj molding.Tsis ntev los no, kev txhaj tshuaj molding yog txoj hauv kev tseem ceeb.
① Compression molding method, saib SMC molding method.
② Hloov molding txoj kev.Cov cuab yeej muaj lub lauj kaub hom thiab auxiliary piston hom, feem ntau auxiliary piston hom.
Post lub sij hawm: Lub Xya hli ntuj-12-2022