FRP Pu Sandwich Composite Panel
Masiku ano m'magawo omanga ndi mafakitale omwe akusintha mwachangu, pakufunika kwambiri zida zogwirira ntchito, zolimba komanso zosunthika. Imodzi mwa njira zatsopano kwambiri ndi FRP (fiberglass) PU (polyurethane) masangweji mapanelo.
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Kuyamba Kwazinthu
Mafotokozedwe Akatundu
FRP refrigerated compartment panel imatenga "sandwich" yophatikizika, yokhala ndi chotchingira chakunja cha gel (0.5-0.8mm), chosanjikiza chapakatikati chagalasi (2-3mm) ndi polyurethane foam core layer (50-100mm). Kapangidwe kameneka kamakwaniritsa kusungunula kwamafuta ambiri kudzera mu synergistic zotsatira za zida: gel odula wosanjikiza amakhala ngati chotchinga wandiweyani ndi kuchuluka kwa mayamwidwe amadzi ochepera 0,3%, omwe amatha kuletsa 98% ya kulowa kwa nthunzi yamadzi ndikuletsa chinyezi kuti chisawononge wosanjikiza wa thovu ndikupangitsa kuti matenthedwe azitha kuwonjezeka; wosanjikiza wagalasi umapanga njira yopangira kutentha kudzera m'mitolo yosasinthika ya ulusi, kuchepetsa kutentha kwa ma radial ndi 40%; polyurethane pachimake wosanjikiza ali otsekedwa-maselo mlingo woposa 95%, kachulukidwe 40-60kg/m³, ndipo mkati zisa zake amalamulira mpweya convection kutentha kutentha kuchepera pa 5%. Deta yoyesera ikuwonetsa kuti kukana kwa matenthedwe kwa kapangidwe kawo kaphatikizidwe kumafika pa 3.2-4.5 (m²·K)/W, komwe ndi kuwirikiza ka 80 kuposa gulu limodzi la aluminiyamu aloyi.
Chimodzi mwazabwino zazikulu za FRP PU sangweji bolodi ndizomwe zimakhala zabwino kwambiri zotchinjiriza matenthedwe. PU foam core imathandizira kuwongolera kutentha kwamkati ndikuchepetsa kugwiritsa ntchito mphamvu. Ndiwoyeneranso kumadera omwe amafunikira kusungirako kutentha nthawi zonse monga magalimoto osungira ozizira.
FRP PU masangweji mapanelo ndi makonda kwambiri, kulola kusinthika ndi kapangidwe. Zitha kudulidwa mosavuta ndikuwumbidwa kuti zigwirizane ndi zofunikira zenizeni. Kaya amagwiritsidwa ntchito pamakoma akunja, madenga, pansi kapena magawo, mapanelo a masangweji a FRP PU amapereka kusinthasintha komanso magwiridwe antchito.
Kupyolera mu luso lazinthu komanso kukhathamiritsa kwa kamangidwe, mapanelo a FRP PU aposa zida zakale zachitsulo potchingira, mphamvu, mtengo wake ndi miyeso ina, ndipo akhala njira yabwino yothetsera{0}}magalimoto otsekera mufiriji. Pamene kasamalidwe ka zinthu zoziziritsa kukhosi kakukulirakulira komanso kuwongolera nzeru, kuchuluka kwa zinthuzi pazamankhwala, zakudya zatsopano, -zozizira zam'malire, ndi zina zotero, zipitilira kukula, ndipo msika ukuyembekezeka kupitilira 45% mu 2025.
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