Burburinta shaashadda shaashadda birta
Tilmaanta tooska ah ee lagu aasay, oo sidoo kale loo yaqaan "tuubada tuubbada", waxay ka kooban tahay "hab laba-tallaabo ah", oo ka kooban xaraashka polyuretytyle the polyurethen the {{1} ee loo yaqaan 'polyurethen polyurene' oo cufnaanta polyurethane ee cufnaanta lakabka leh oo cufnaanta 60 kg / m3, Waxay ku dartaa farqiga u dhexeeya tuubbada birta iyo caqabadda, oo waxay leeyihiin tuubbada birta, ee lakabka jaakadaha, sida caadiga ah wax ka beddelka dahabka ah ee loo yaqaan 'polyurethane', oo ay ku jiraan waxyaabo kale oo ku saabsan qashin-qubka ama waxyaabaha kale ee dahaarka kuleylka ah ayaa u adkeysan kara heerkulka sare 180 shahaadada, oo ku habboon dhammaan noocyada qabow, biyaha kulul ee kuleylka kuleylka kuleylka kuleylka kuleylka ee kuleylka kuleylka kuleylka ee kuleylka kuleylka kuleylka ah .
Tilmaamaha kuleylka kuleylka ee loo yaqaan 'polyurethane' ayaa ku habboon injineerrada kuleylka kuleylka ee polyurethane ay ku habboon tahay injineerrada kuleylka kuleylka ee warbaahinta kaladuwan ee kaladuwan ee ., poweline-ka qabow, awoodda gaaska dabiiciga ah, tuubbooyinka gaaska dabiiciga ah, tuubbada xargaha. Tuubada shaashadda Steace iyo warshadaha kale ee dahaarka kuleylka iyo injineerka qabow .
Faa'iidooyinka tuubbada kuleylka ee polyurethane aaladda kuleylka lagu aasay
{{0}1. si loo yareeyo xisaabinta qaybaha ay quseyso, duruufaha kululaynta ee labanlaab, waxay yareyn kartaa qiimaha mashruuca 25%, isticmaalka FRS ee lakabka difaaca {{3}
{{0} {0}2.} {{. dhaqankeeda kuleylka ahi waa: λ {λ {{{} {{}} - 0.03kcal /
The mhoC is much lower than other commonly used pipe insulation materials in the past, and the insulation effect is 4~9 times higher. Moreover, its water absorption rate is very low, at about 0.2 kg/m2. The reason for the low water absorption is that the closure rate of polyurethane foam is up to about 92%. Low thermal QIIMAYNTA IYO KHATARTA Biyaha oo hooseeya, oo ay weheliso lakabka dahabka iyo waxqabadka biyaha ee wanaagsan ee polyetylen-ka sare ee polyetylen-ka.
3.}}} iska caabin la-dagaallanka, wax qabad wanaagsan, iyo nolosha muddada dheer {{{{{}} sababta oo ah lakabka 'porurethane', waxay ka ciyaari kartaa saafiga anti-{{4}, godadkeeda daloolka ah, oo ay biyuhu ay yihiin Yar {{5} ka sareysaa goynta dhaqameedyada dhaqameed iyo dusha sare ee dul dhigida {{11-6}
{{0}4.} dhisme oo yar, oo ku habboon ilaalinta deegaanka {{1} {{1} {1} {{1}. si aad u aasto qashin qubka, oo yareynaya qoditaanka shaashadda, oo ay ka dhigeyso qaddarka mashaqada, oo ay ka kooban tahay 90% {{4} isku mar, tuubada tuubbada. iyo isbarbar dhigga goobta, kaliya wadajirka goobta, waxay gaabin karaan xilliga dhismaha in kabadan 50% .
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