Lub ntim ntawm polyurethane ua npuas ncauj tsim ib tuj tuaj yeem sib txawv vim qhov sib txawv ntawm cov txheej txheem ntau lawm thiab ua rau qhov ntom ntom. Yog li ntawd, qhov ntim tsis yog tus nqi ruaj khov.
Cov khoom siv ua npuas dej tuaj yeem muaj qhov ntom ntom txog 173.7 kg / m³, uas ua rau muaj qhov ntim ntawm kwv yees li 5.76 cubic meters ib tuj.
Nrog rau qhov sib ntxiv ntawm cov neeg ua haujlwm tshwj xeeb, qhov ceev tuaj yeem txo mus rau 41.7 kg / m³, ua rau muaj qhov ntim ntawm txog 24 cubic meters ib tuj.
Mos ua npuas ncauj tsim siv txoj kev kub pwm tuaj yeem muaj qhov ntom ntom li 25 kg / m³, muab ntim li 40 cubic meters ib tuj.
Siv lub tshuab nqus dej tuaj yeem tsim cov npuas mos mos nrog qhov ntom ntom ntawm 15-20 kg / m³, nce ntim rau kwv yees li 66.67 txog 50 cubic meters ib tuj.
Yog hais tias qhov ceev ntawm 30 kg / m³ yuav tsum tau, theoretically, 33 cubic meters yuav tsim tau ib tuj. Txawm li cas los xij, qhov tseeb ntim feem ntau yog qis dua tus nqi theoretical vim qhov kev poob ntau lawm, tus neeg ua haujlwm tus cwj pwm, qhov kub thiab txias, av noo, thiab lwm yam.
Hais txog ntau npaum li cas cov khoom siv polyurethane yuav tsum tau siv rau ib lub cubic meter ntawm rwb thaiv tsev txheej, nws yuav tsum xub xyuas seb puas yog polyurethane rwb thaiv tsev txheej yog lub rooj tsavxwm los yog tshuaj tsuag, siv rau sab hauv tsev lossis sab nraum zoov, thiab nws cov tuab. Qhov no pab txiav txim qhov poob ntawm cov khoom. Qhov ntom ntawm cov rwb thaiv tsev npuas kuj tseem ceeb heev rau kev txiav txim siab cov khoom siv tseem ceeb.
Feem ntau, rau cov tshuaj tsuag-siv rwb thaiv tsev nyob rau hauv txias cia nrog ib tug tuab ntawm 10-20 cm thiab ib tug tiav ceev ntawm ib ncig ntawm 40 kg / m³, ib tuj ntawm polyurethane ua npuas ncauj khoom yuav ua tau txog 20 cubic meters ntawm cov khoom tiav. Qhov no txhais tau hais tias kwv yees li 50 kg ntawm cov khoom siv rau ib lub cubic meter.
Rau cov pa polyurethane rwb thaiv tsev, qhov ceev yog feem ntau ntawm 30-50 kg / m³, txhais tau tias kev siv ib cubic meter yog nruab nrab ntawm 40-60 kg.