Gulu la Sandwichi la Polyurethane

Monga chida chotetezera nyumba chomwe chimagwiritsa ntchito mphamvu zambiri, gulu la sandwich la polyurethane lakhala gawo lofunika kwambiri m'mafakitale amakono, malo osungiramo zinthu, komanso malo osungiramo zinthu zozizira. Mtundu uwu wa gulu lomangira, lomwe limaphatikiza zigawo zachitsulo ndi zinthu za polyurethane, likuyembekezeka kukhala lofunika kwambiri mtsogolo.

Kuchita Bwino Kwambiri
Ubwino waukulu wa polyurethane sandwich panel uli mu ntchito yawo yabwino kwambiri yoteteza kutentha. Zipangizo za polyurethane thovu zili ndi mphamvu zabwino zotetezera kutentha, ndipo mphamvu ya kutentha ndi yotsika kufika pa 0.017-0.025 W/(m·K). Izi zikutanthauza kuti gulu lokhala ndi makulidwe a masentimita 5 okha lingathe kukhala ndi mphamvu yoteteza kutentha yofanana ndi khoma la konkire la mita imodzi. Chifukwa cha mphamvu yake yabwino kwambiri yoteteza kutentha, ma polyurethane sandwich panel akhala chinthu chodziwika bwino chomangira malo osungiramo zinthu ozizira.

Kuteteza madzi, kukana chinyezi, komanso kukhazikika kwambiri ndi zabwino zina za mapanelo a polyurethane sandwich. Kuchuluka kwa maselo otsekedwa a polyurethane thovu pakati kumaposa 95%, zomwe zimaletsa kulowa kwa chinyezi. Kuchuluka kwa kuyamwa kwa madzi kwa mapanelo a polyurethane sandwich ndi kochepera 3%. Nthawi yomweyo, kutentha kwa 30°C kumasinthasintha, kusintha kwa mawonekedwe a mapanelo ndi kochepera 1%, zomwe zimapangitsa kuti agwiritsidwe ntchito kwa nthawi yayitali popanda kusintha.

Kukana moto kwa mapanelo a sandwich a polyurethane kumatha kufika pa Class B1. Mapanelo a sandwich a polyurethane amatha kuyaka, koma amasiya kuyaka patangopita masekondi atatu kuchokera pamene achotsedwa pamoto. Ngakhale kuti ndi otsika pang'ono poyerekeza ndi mapanelo a sandwich a ubweya wa miyala pankhaniyi, amakwaniritsabe zofunikira zodzitetezera pamoto.

Kapangidwe kake, chifukwa cha zigawo ziwiri za zitsulo pamwamba ndi pansi, ma polyurethane sandwich panels ali ndi mphamvu yabwino yomanga. Mphamvu yokakamiza ya ma polyurethane sandwich panels ndi yoposa 150 kPa. Komabe, chinthu chachikulu ndi polyurethane thovu, zomwe zimapangitsa ma polyurethane kukhala opepuka 30-60% kuposa zinthu zachikhalidwe. Izi zimapangitsa ma polyurethane sandwich panels kukhala chinthu chomwe chimakondedwa kwambiri popanga zinthu zopepuka.

Kufunika Kwambiri kwa Kupanga
Pakadali pano, njira yopangira ma panel a polyurethane sandwich imachitika yokha yokha. Opanga otsogola, monga Harbin Dong'an Building Sheets Co., Ltd., amagwiritsa ntchito mizere yopangira mosalekeza kuti aphatikize njira yonse yopangira thovu, kuyeretsa, ndi kupanga ma panel.

Kutulutsa thovu ndi kupanga thovu lopanikizika kwambiri ndi gawo lofunika kwambiri pakupanga mapanelo a polyurethane sandwich. Ubwino wa thovu umatsimikizira mwachindunji momwe mapanelo amagwirira ntchito. Pakupanga, opanga amafunika kuwongolera kutentha kwa bolodi la unyolo ndi zipangizo zotulutsa thovu. Liwiro la mzere wopangira ndilofunikanso, chifukwa limakhudza kufanana kwa njira yotulutsira thovu pakati.