PU na PIR polyurethaneububiko bukonjeIbipande by’amabati bizwi cyane nk'ibikoresho byo gukingira ibidukikije byiza cyane biboneka mu bwubatsi bugezweho bwo kubika ibintu bikonjesha. Ubushyuhe bwabyo buke cyane hamwe n'imiterere yabyo ihamye bituma biba igisubizo cyiza cyo kubika ibintu bikonjesha biciriritse n'ibinini.
Bitewe n’uko hakoreshejwe cyane amapaneri ya polyurethane, sisitemu zigezweho zo gutwara ibintu mu miyoboro y’ubukonje zazamuye cyane ireme ryo kubungabunga ibintu, ndetse zigabanya ikiguzi cy’imikorere muri rusange. Izi paneri ubu zigira uruhare runini mu bikorwa remezo by’imiyoboro y’ubukonje mu buryo bukoresha ingufu nke mu biribwa, imiti n’inganda.
Imikorere myiza cyane yo gukingira ubushyuhe bwa polyurethane
Akamaro k'ingenzi k'udupira two kubikamo ibintu bikonjesha twa polyurethane kari mu miterere yatwo y'imbere ifunze. Amahame ngenderwaho mu nganda asaba ko udupira two kubikamo ibintu bikonjesha twa polyurethane twiza cyane kugira ngo tugere ku gipimo cya 95% by'uturemangingo dufunze. Udupira two gufuro dukora utwenge dufunze imbere mu gikoresho cy'ibanze, kandi utwo turemangingo dufunga inzira zo kohereza ubushyuhe. Kubera iyo mpamvu, ubushyuhe hagati y'imbere n'inyuma y'ahantu hakonje buguma ari hasi cyane.
Kubera iki gipimo kinini cy’uturemangingo dufunze, utubati twa polyurethane dukunze kugera ku rwego rwo gutwara ubushyuhe hagati ya 0.018 na 0.024 W/m·K. Ibikoresho gakondo byo gukingira nk'amabati y'ubwoya bw'amabuye cyangwa utubati twa polystyrene twa EPS akenshi bigaragaza agaciro k'ugutwara ubushyuhe hagati ya 0.035 na 0.045 W/m·K. Mu gihe kimwe n'ibisabwa byo gukingira ubushyuhe, utubati twa polyurethane dushobora kugera ku ntego dufite hafi kimwe cya kabiri cy'ubunini bw'ibikoresho bisanzwe. Iyi nyungu igabanya mu buryo butaziguye ikoreshwa ry'inyubako kandi ikongera ingano y'ububiko bushobora gukoreshwa.
Udupaki twa polyurethane dukonjesha na two dupima imikorere y’ubushyuhe n’imbaraga za mekanike binyuze mu bucucike bw’ibikoresho bugenzurwa. Udupaki twiza dukunze kugira ubucucike bw’ifuro buri hagati ya kg 38 na 40 / m³. Uru rugero rugaragaza ahantu heza ho kuringaniza hagati y’ubucucike bw’inyubako n’imikorere myiza y’ubushyuhe. Ubucucike buke bugabanya imbaraga zo gukanda kandi byongera ibyago byo guhinduka. Ubucucike bwinshi bwongera ubushobozi bwo gutwara ubushyuhe n’igiciro cy’ibikoresho hatabayeho gutanga inyungu zingana.
Ibisobanuro bya tekiniki n'imiterere y'ikoreshwa
Abakora ubusanzwe bakora amabati yo kubikamo ibintu bikonje ya polyurethane bahuza ifuro rya polyurethane rikomeye hagati y’amabati abiri y’ibyuma byasizwe irangi. Iyi miterere ivanze itanga ubushyuhe n’ubudahangarwa. Guhitamo ubunini bw’amabati bikurikiza amabwiriza akomeye ashingiye ku bushyuhe.
Udupanu dufite ubugari bwa mm 50 kugeza 100 dukwiranye n’ahantu hashya ho kubika ibintu hejuru ya 0°C. Ibyumba bikonjesha bikorera hafi -18°C akenshi bisaba udupanu turi hagati ya mm 100 na 150 z’ubugari. Ku bubiko bukonjesha vuba cyangwa ahantu hashyuha cyane munsi ya -25°C, abahanga bakunze gushyiraho udupanu tunini turi hagati ya mm 150 na 200. Izi mbonerahamwe zituma ubushyuhe bw’imbere buhoraho kandi zikarinda gutakaza ingufu nyinshi.
Ingufu zo gukanda ziracyari ikindi kintu cy'ingenzi mu miterere y'ububiko bukonje. Udupapuro tugomba gushyigikira imizigo iva mu dusanduku tw'ibikoresho, imashini zishyushya, n'ibindi bikoresho byashyizweho. Udupapuro two kubikamo ibintu bikonje twa polyurethane twiza cyane akenshi tugira imbaraga zo gukanda zirenze 150 kPa. Uru rwego rutuma inyubako ihora ikora neza mu gihe kirekire.
Umutekano w'inkongi unagira ingaruka ku guhitamo ibikoresho. Ibyuma byinshi byo kubikamo ibintu bikonje bya polyurethane byujuje amabwiriza yo kwirinda inkongi ya B1 cyangwa B2. Ibikoresho byo mu rwego rwa B1 byizimya ubwabyo mu masegonda atatu nyuma yo gukuraho umuriro. Ibikoresho byo mu rwego rwa B2 byizimya ubwabyo mu masegonda atatu kugeza kuri atandatu. Ibi bigabanya cyane ibyago byo gukwirakwira kw'inkongi kandi bikongera umutekano muri rusange w'inyubako.
Ubudahangarwa bw'ibikoresho burushaho kugaragaza itandukaniro hagati y'ibice byiza cyane. Ibice bikonjesha bya polyurethane akenshi bigumana igipimo cyo kwinjiza amazi kiri munsi ya 1%. Bikora neza kandi mu bushyuhe bwinshi kuva kuri -60°C kugeza kuri +120°C. Uku kudahangarwa gutuma ubushyuhe buhora bukora neza mu gihe habayeho imikorere mibi no kuzunguruka k'ubushyuhe kenshi.
Ibyiza by'imiterere: Ikoranabuhanga ryagaragaye ryo guhuza ururimi n'imirongo
Ibiraro bikonje ni kimwe mu bibazo bikomeye ku buryo bubika ahantu hakonje. Ibikoresho bikonjesha bya polyurethane bikemura iki kibazo binyuze mu buryo bwo guhuza ururimi n'imirongo byakuze hamwe n'uburyo bwo gufunga bukozwe mu buryo budasanzwe. Ubu buryo butuma ibikoresho bihuza neza kandi bigashyiraho urwego rwo gukingira ruhoraho.
Iyi miterere y'inyubako ituma habaho imikorere myiza yo kuziba imigozi. Iyo abashyiraho ibikoresho byongera uduce tw’ubukonje n’udupfundikizo tw’ifuro, umwuka usohoka n’ubukonje ku ngingo bigabanuka ku rugero ruto cyane. Ku bubiko bukonje bufata metero kare zigera ku 1.000, paneli za polyurethane nziza zishobora kugabanya ikoreshwa ry’amashanyarazi buri mwaka ku kigero cya 20 kugeza kuri 30 ku ijana ugereranije n’ibikoresho bisanzwe byo kuzimya umuriro. Iri gabanuka rituma habaho inyungu zikomeye mu bukungu bw’igihe kirekire no kunguka byihuse ku ishoramari.
Igihe cyo kohereza: Mutarama-28-2026