Vim tias qhov kev xav tau tam sim no hauv kev tsim kho, PUR PIR sandwich panels yog qhov kev xaiv zoo tshaj plaws rau kev rwb thaiv tsev thermal thiab kev nyab xeeb. Cov sandwich panels no yog tsim los ntawm ib tug insulating core ntawm nruj polyurethane los yog polyisocyanurate ua npuas ncauj (PUR-PIR) adhered rau ob phab ntsa, uas feem ntau yog hlau. Cov txheej hlau feem ntau yog ua los ntawm cov hlau lossis txhuas. Thaum lub sij hawm tsim cov txheej txheem, lub npog txheej yog npaj los ntawm molding mus rau hauv tus txheej txheem pib. Thaum molded raws li qhov yuav tsum tau rau txhua hom vaj huam sib luag, lawv raug xa mus rau cov xovxwm, thiab lub taub hau sib xyaw ces txhaj cov khoom tsim nyog nyob rau hauv ib koob tshuaj predetermined, yog li tsim cov kua theem ua npuas ncauj. Nws cov tshuaj tiv thaiv ua rau cov npuas dej loj tuaj, adhering rau saum thiab qis txheej txheej. Nws yog kho los ntawm cua sov thiab pressurizing rau ib lub sij hawm kom txog thaum nws solidifies. PUR PIR sandwich panels tsim los rau kev nyab xeeb yog li ntawd txiav mus rau hauv predetermined ntev, stacked thiab ntim.
Qhov sib txawv ntawm Sandwich PUR thiab PIR boards
Rigid polyisocyanurate (PIR) ua npuas ncauj yog ib qho txawv ntawm polyurethane (PUR) ua npuas ncauj, uas nws cov tsos, txhua yam thiab thermal zog tseem zoo li tsis hloov, qhov sib txawv tseem ceeb yog nws cov hluav taws kub zoo dua. PIR ua npuas ncauj ruaj ntseg ntes hluav taws los ntawm kev tsim cov txheej txheej txheej uas tiv thaiv thiab tiv thaiv hluav taws los ntawm kev nkag mus rau hauv cov khaubncaws sab nraud povtseg.
Vim lawv cov tshuaj sib txawv ntawm cov khoom sib txawv, cov sandwich panels muab los ntawm polyisocyanurate (PIR) txawv ntawm cov neeg siv polyurethane (PUR) hauv lawv cov physicochemical zog. Hais txog lawv cov khoom siv thermal, PIR ruaj khov ntawm qhov kub ntawm -200℃thiab 120 degree, thaum PUR yog thermally ruaj khov nyob rau hauv qhov kub ntawm -150℃rau +80℃.
Parameter sib piv ntawm Sandwich PUR PIR panels
|
Parameter |
Sandwich PUR panels |
Sandwich PUR panels |
|
Cov khoom siv tseem ceeb |
Polyether polyol, isocyanate, isocyanate index yog hais txog 110 - 120, feem ntau yuav tsum tau ntxiv cov nplaim hluav taws |
Polyester polyol, isocyanate, isocyanate index saum toj 250, tsis muaj los yog tsawg dua nplaim hluav taws |
|
Hluav taws ua haujlwm |
B2 Qib |
B1 Qib |
|
Kev ua haujlwm thermal rwb thaiv tsev |
Thermal conductivity 0.022 - 0.026W/mK (25 degree) |
Thermal conductivity yuav tsawg li 0.019W / mK (25 degree) |
|
Kev nqus dej |
2.5% - 3% |
0.9% |
|
Mechanical zog |
Tag nrho cov neeg kho tshuab lub zog yog me ntsis qis dua li ntawm PIR board |
Zoo txhua yam muaj zog, tuaj yeem muab cov khoom lag luam zoo siab thiab tsis tshua muaj qhov kub thiab txias qhov ruaj khov thiab qis thermal decomposition tus nqi |
|
Adhesive khoom |
Zoo adhesion zoo rau cov khoom nto |
siab nkig, thiab nws lub zog sib txuas nrog cov khoom siv saum npoo yog li 1/2 ntawm PUR board. Nws kuj muaj cov yam ntxwv ua npuas ncauj nrawm nrawm, uas cuam tshuam rau kev ua haujlwm ntawm lub rooj tsavxwm. |
Cim npe nrov: Qhov txawv ntawm sandwich pur thiab pir panels, Tuam Tshoj qhov txawv ntawm sandwich pur thiab pir panels manufacturers, lwm tus neeg, Hoobkas
