Umbhobho wokugquma ongcwatywe ngokuthe ngqo ugwetywe yikhemikhali yemathiriyeli edityanisiweyo ye-polyether polyol ephezulu kunye ne-polymethyl polyphenyl polyisocyanate njengemathiriyeli ekrwada. Imibhobho yokugquma ngokuthe ngqo engcwatywayo isetyenziselwa ukugquma ubushushu kunye neeprojekthi zokugquma ezibandayo zemibhobho eyahlukeneyo yangaphakathi nangaphandle, imibhobho yokufudumeza esembindini, imibhobho yokupholisa umoya ephakathi, imichiza, amayeza kunye neminye imibhobho yoshishino. Isishwankathelo Ukususela ekuzalweni kwezinto ezidibeneyo ze-polyurethane kwiminyaka ye-1930, umbhobho we-polyurethane we-foam insulation uphuhliswe ngokukhawuleza njengento egqwesileyo yokufakelwa kwe-thermal, kwaye uluhlu lwesicelo lwayo luye lwaba lukhulu ngakumbi. Isetyenziswa kakhulu kwimibhobho eyahlukeneyo efana nokufudumeza, ukupholisa, ukuthuthwa kweoyile, kunye nokuthuthwa komphunga.

Iingxaki eziqhelekileyo kunye nezisombululo ekwakhiweni kwemibhobho yokufakelwa kwe-thermal engcwatywe ngokuthe ngqo

Le nto yenzeka ngokubanzi ekwindla nasebusika okanye ekwakhiweni kwasekuseni, kuba iqondo lobushushu liyehla ngokukhawuleza okanye iqondo lobushushu liphantsi. Inokusombululwa ngokunyusa ubushushu be-ambient kunye nobushushu bezinto ezimnyama. Ngokuqhelekileyo, ubushushu bezinto ezimnyama buphakanyiswe kwi-30-60 ° C, kwaye ubushushu be-ambient buphakanyiswe kwi-20-30 ° C.

Esi siganeko senzeka ngokubanzi entwasahlobo nasehlotyeni okanye ngexesha lokwakhiwa emini emaqanda, kuba iqondo lobushushu liyenyuka ngesiquphe kwaye nobushushu buphezulu kakhulu. Izinto ezimnyama zinokupholiswa ngamanzi abandayo okanye zibekwe ngaphandle ebusuku ukuze zipholile zendalo ukuphepha ukukhanya kwelanga.

Amandla egwebu lombhobho wokugquma ongcwatywe ngokuthe ngqo mancinci kwaye ugwebu luthambile. Le nto ibangelwa ukungalingani komlinganiselo wezinto ezimnyama nezimhlophe. Umlinganiselo wezinto ezimnyama unokunyuswa ngokufanelekileyo (1: 1-1.05). Qaphela ukuba ungenzi umlinganiselo wezinto ezimnyama zikhulu kakhulu, ngaphandle koko, kuya kubangela I-foam iba yi-brittle, echaphazela nokusebenza kwe-foam.

Umbhobho wokugquma ongcwatyiweyo othe ngqo uye waba bubuchwephesha obusele bukhulile ngokwentelekiso obuphambili kumazwe athile aphuhlileyo phesheya. Kwiminyaka elishumi edlulileyo, ubunjineli bokufudumala belizwe lam kunye nabasebenzi bobugcisa bakhuthaza uphuhliso lothungelwano lwemibhobho yasekhaya yokubeka itekhnoloji ukuya kwinqanaba eliphezulu ngokugaywa kunye nokufunxa obu buchwepheshe buphambili. Iziphumo ezibonakalayo kule minyaka ilishumi idlulileyo zibonakalise ngokupheleleyo ukuba indlela yokubeka yombhobho wokugquma wobushushu ongcwatywe ngokuthe ngqo ineenzuzo ezininzi xa kuthelekiswa nomsele wesiqhelo kunye nokubekwa phezulu. Umbhobho wokugquma we-thermal ongcwatywe ngokuthe ngqo udityaniswe ngokusondeleyo kunye nombhobho wentsimbi wokuhambisa okuphakathi, i-polyethylene yangaphandle ye-high-density casing, kunye nomgangatho oqinileyo we-polyurethane we-foam insulation layer phakathi kombhobho wentsimbi kunye ne-casing yangaphandle. Oku ikwangamandla okuqhuba angaphakathi kuphuhliso olukhawulezayo lwe-polyurethane thermal insulation ngqo imibhobho engcwatywe kubunjineli bokufudumala belizwe lam.