Fiberglass ili ndi zabwino zambiri monga mphamvu yayikulu komanso kulemera kopepuka, kukana dzimbiri, kukana kutentha kwambiri, komanso kugwira ntchito bwino kwamagetsi. Ndi chimodzi mwazinthu zomwe zimagwiritsidwa ntchito kwambiri. Nthawi yomweyo, China ndiye wopanga wamkulu kwambiri padziko lonse lapansi wa fiberglass.
1. Kodi fiberglass ndi chiyani?
Fiberglass ndi chinthu chosapangidwa ndi chitsulo chomwe chimagwira ntchito bwino kwambiri. Ndi mchere wachilengedwe wokhala ndi silica ngati chinthu chachikulu chopangira, ndikuwonjezera zinthu zinazake zachitsulo chopangira oxide. Pambuyo posakaniza mofanana, imasungunuka kutentha kwambiri, ndipo galasi losungunuka limadutsa mu nozzle yotulutsa madzi. , pogwiritsa ntchito mphamvu yokoka mwachangu, imakokedwa ndikuziziritsidwa mwachangu ndikulimba kukhala ulusi wosalala kwambiri.
Utali wa ulusi umodzi wa fiberglass umayambira pa ma micron ochepa mpaka ma micron makumi awiri, zomwe ndi zofanana ndi 1/20-1/5 ya tsitsi. Mtolo uliwonse wa ulusi umapangidwa ndi ma monofilaments mazana kapena zikwizikwi.
Makhalidwe oyambira a fiberglass:
Mawonekedwe ake ndi ozungulira okhala ndi pamwamba posalala, gawo lopingasa ndi lozungulira, ndipo gawo lopingasa lozungulira lili ndi mphamvu yonyamula katundu wamphamvu; kukana kwa mpweya ndi madzi ndi kochepa, koma pamwamba posalala kumapangitsa mphamvu yogwirizana ndi ulusi kukhala yochepa, zomwe sizikugwirizana ndi kuphatikiza ndi utomoni; kuchuluka kwake nthawi zambiri kumakhala 2.50-2.70 g/cm3, makamaka kumadalira kapangidwe ka galasi; mphamvu yokoka ndi yayikulu kuposa ulusi wina wachilengedwe ndi ulusi wopangidwa; zinthu zosweka, kutalika kwake pakusweka ndi kochepa kwambiri; kukana madzi ndi kukana asidi ndikwabwino, pomwe kukana kwa alkali ndi kochepa. Kusiyana.
2. Kugawa magulu aulusigalasi
Kuchokera ku gulu la kutalika, lingagawidwe m'magulu awiri: fiberglass yopitilira, fiberglass yaifupi (fiberglass yokhazikika) ndi fiberglass yayitali (LFT).
3. Kugwiritsa ntchito fiberglass
Fiberglass ili ndi mphamvu yokoka kwambiri, kusinthasintha kwakukulu kwa kusinthasintha, kusayaka, kukana mankhwala, kuyamwa madzi pang'ono, komanso magwiridwe antchito abwino. , imagwiritsidwa ntchito kwambiri m'magawo osiyanasiyana.
Ma fiberglass akunja amagawidwa m'magulu anayi malinga ndi momwe zinthu zimagwiritsidwira ntchito: zipangizo zolimbikitsira mapulasitiki okhazikika a thermosetting, zipangizo zolimbikitsira ma fiberglass za thermoplastics, zipangizo zolimbikitsira simenti za gypsum, zipangizo za nsalu za fiberglass, zomwe zipangizo zolimbikitsira zimakhala 70-75%, zipangizo za nsalu za fiberglass zimakhala 25-30%. Kuchokera pakuwona kufunika kwa zinthu zomwe zili pansi, zomangamanga zimakhala pafupifupi 38% (kuphatikiza mapaipi, kuchotsa mchere m'madzi a m'nyanja, kutentha kwa nyumba ndi kutsekereza madzi, kusunga madzi, ndi zina zotero), zoyendera zimakhala pafupifupi 27-28% (mabwato, magalimoto, njanji yothamanga kwambiri, ndi zina zotero), ndipo zamagetsi zimakhala pafupifupi 17%.
Mwachidule, magawo ogwiritsira ntchito fiberglass nthawi zambiri amaphatikizapo mayendedwe, zida zomangira, mafakitale amagetsi, makampani amakina, mafakitale a petrochemical, chikhalidwe cha zosangalatsa ndi ukadaulo wachitetezo cha dziko.
Nthawi yotumizira: Juni-20-2022
