Impact resistance test of composite materials
1. Njira yoyesera yamphamvu yotsika kwambiri
Pofuna kutengera momwe zinthu zimakhudzira momwe zinthu zilili zenizeni, ofufuza apereka njira zambiri zoyesera.Malingana ndi momwe zinthu zilili zenizeni, zotsatira zake nthawi zambiri zimagawidwa m'magulu othamanga kwambiri komanso otsika kwambiri.
Kuthamanga kwambiri kumatchedwanso ballistic impact.Chifukwa kukhudzidwa kothamanga kwambiri kwalandira chidwi chachikulu m'zamlengalenga ndi zankhondo, anthu achita kafukufuku wambiri woyeserera pa liwiro lalikulu.Liwiro lalikulu nthawi zambiri limagwiritsa ntchito projekiti yaying'ono kuti igunde mwachangu kwambiri, ndipo makamaka imagwiritsa ntchito mfuti zamlengalenga kuyambitsa ma projectiles kuti aphunzire momwe zinthu zilili mwachangu kwambiri, monga momwe zikuwonekera pachithunzichi:
Mayeso otsika kwambiri nthawi zambiri amatengera kukhudzika kwa chinthu chochuluka kwambiri pamtunda wocheperako, monga kutsika mwangozi kwa chida panthawi yokonza, ndipo chipangizo choyesera chotsitsa kulemera nthawi zambiri chimagwiritsidwa ntchito poyesera. kayeseleledwe.
Chithunzi 2 Drop nyundo kuyesa chipangizo
Zotsatira zafukufuku zikuwonetsa kuti mawonekedwe, ubwino ndi liwiro la projectile zidzakhudza kwambiri njira yolephera ya zipangizo zophatikizika.Mwachitsanzo, ochita kafukufuku achita kafukufuku wambiri pa mgwirizano pakati pa mawonekedwe a mutu wa nyundo ndi momwe zimakhudzira khalidwe la zipangizo zophatikizika.Nthawi zambiri, kuthwa kwa mutu wa nyundo kumagwiritsidwa ntchito, m'pamenenso kuwonongeka kwa zinthuzo kumachitika m'malo osiyanasiyana, ndipo kulephera kwakukulu kumasintha kuchoka ku delamination kupita ku kulephera kwa matrix ndi kuwonongeka.Kuphulika kwa fiber.
2. Chikoka cha zinthu zachilengedwe pakuchita motsika kwambiri
Magawo ophatikizika amayenera kukumana ndi zovuta zachilengedwe pakagwiritsidwe ntchito kwa nthawi yayitali, monga kutentha kwambiri, kutentha pang'ono, kutentha kwachinyontho, ndi matenthedwe.Kafukufuku wasonyeza kuti pansi pa zochitika za maderawa, makina azinthu zophatikizika adzasintha kwambiri.Kuthamanga kwapang'onopang'ono nthawi zambiri kumachepetsa mphamvu yopindika ndi yopingasa ya zinthu zophatikizika, ndikupanga ma microcracks ambiri mu matrix.
Gwiritsani ntchito kwambiri kuyesa kwachilengedwe komanso kuyesa kayeseleledwe ka chilengedwe kuti muphunzire momwe zimakhudzira chilengedwe.Zomwe zimatchedwa kuwongolera zachilengedwe ndikuyika zinthu zophatikizika kuti ziyesedwe m'malo ena kuti zisinthidwe pasadakhale, kenako ndikuyika zinthu zomwe zakonzedwa kuti ziyesedwe mothamanga kwambiri kutentha kwapakati.Mayeso oyeserera zachilengedwe ndikuyika zinthu zophatikizika m'chipinda cha chilengedwe pomwe zikukhudzidwa.Njirayi imagwiritsidwa ntchito pophunzira momwe zinthu zimakhudzira magawo azinthu zosiyanasiyana zautumiki.
3. Zotsatira za zinthu zakuthupi pakuchita kotsika kwambiri
Ulusi umagwiritsidwa ntchito kwambiri ngati chilimbikitso popanga zinthu zophatikizika.Panthawi imodzimodziyo, monga chonyamulira chachikulu cha katundu, ntchito ya fiber imakhudza kwambiri kukana kwathunthu kwa zinthu zophatikizika.Ulusi womwe umagwiritsidwa ntchito pazamlengalenga umaphatikizaponsocarbon fiber, galasi ulusindi Kevlar fiber.Chifukwa cha brittleness yapadera ya carbon fiber, mphamvu ya carbon fiber reinforced resin matrix composites ndi yofooka kuposa ya galasi fiber ndi Kevlar fiber.
Matrix a fiber-reinforced resin-based resin-based composite amatenga gawo lofunikira kwambiri pazinthu zophatikizika.Matrix a utomoni ndi osasiyanitsidwa ndi kufalitsa katundu, kusunga mawonekedwe a ulusi kapena kusunga kukhulupirika kwa zinthuzo.Zotsatira za kafukufukuyu zikuwonetsa kuti ngakhale zida zamakina a ma resins a thermosetting ndizabwinoko kuposa ma resins a thermoplastic, mawonekedwe olumikizana ndi ma cell a thermosetting resins amawapangitsa kukhala olimba, zomwe zimapangitsa kuti azilephera kulephera.
Mawonekedwewa amatenga gawo losamutsa katundu ku fiber muzinthu zophatikizika, kotero magwiridwe antchito amakhudza magwiridwe antchito onse azinthu zophatikizika.Zomwe zili ndi mawonekedwe osagwirizana pakati pa ulusi ndi matrix ziwonetsa mphamvu zochepa komanso kuuma, ndipo kulumikizana mwamphamvu kwambiri kumapangitsa kuti zinthuzo zisawonongeke.
Malingaliro a kampani Hebei Yuniu Fiberglass Manufacturing Company Limitedndiwopanga zinthu za fiberglass wopitilira zaka 10, zaka 7 zotumizira kunja.
Ndife opanga fiberglass zopangira, monga fiberglass roving, fiberglass thonje, fiberglass akanadulidwa strand mat, fiberglass akanadulidwa zingwe, fiberglass wakuda mphasa, fiberglass woven roving, fiberglass nsalu, fiberglass nsalu..Ndi zina zotero.
Ngati mukufuna, chonde tithandizeni momasuka.
Tidzachita zonse zomwe tingathe kuti tikuthandizeni ndikukuthandizani.
Nthawi yotumiza: Oct-14-2021