Yuav Ua Li Cas Ntxuav Cov Khoom Siv Polyurethane Ua Npuas Ncauj

Kev ua haujlwm tu kom raug tsis tuaj yeem tsuas yog ua kom muaj kev ua haujlwm zoo ntawm cov cuab yeej siv, tab sis kuj tseem ua kom lub neej ua haujlwm ntev ntawm cov khoom siv foaming.Yog li ntawd, tsis muaj teeb meem los ntawm qhov pom, nws yog ib qho tseem ceeb heev uas yuav tsum tau ntxuav cov khoom siv polyurethane foaming kom raug.

Ib qho tseem ceeb ntawm kev saib xyuas cov khoom siv polyurethane ua npuas ncauj yog ntxuav.Thaum ntxuav cov cuab yeej, ua tib zoo mloog cov ntsiab lus hauv qab no:

1.Cov khoom siv polyurethanecua sov kav:

Thaum cov tshuaj tsuag tiav lawm, nias lub khawm tso tawm (PARK), thiab tom qab ntawd tua phom kom tso lub siab mus txog 500-700psi.Kev nyem nyem tuaj yeem nres.Vim tias thaum muaj qee qhov siab hauv cov yeeb nkab, cov dej noo hauv cov huab cua yuav tsis yooj yim nkag mus rau hauv cov yeeb nkab, uas ua kom cov ntaub ntawv raw yuav tsis cuam tshuam los ntawm huab cua ntub, thiab cov khoom A yuav tsis deteriorate los yog crystallize hauv cov yeeb nkab. ;pab ntau heev.

2. Khoom Siv Lub twj tso kua mis ntawmkhoom siv polyurethane:

Tom qab siv, ntxuav nws cov tsos nrog ib tug tu tus neeg saib xyuas, thiab ces muab tso rau hauv ib tug tiv thaiv casing nrog ib tug tu tus neeg saib xyuas rau lub ntsiab cav kaw nws, thiaj li yuav tiv thaiv tau ib tug me me ntawm isocyanate Cheebtsam los ntawm reacting nrog ya raws nyob rau hauv cov huab cua, ua rau. qhov pub Qhov ceev qeeb qeeb, qhov sib piv ntawm cov twj tso kua mis tawm ntawm qhov sib npaug, thiab lub twj tso kua mis proportional yog khoob.

3. Kev ntxuav ntawmkhoom siv polyurethane:

Yog tias lub sijhawm nruab nrab ntawm kev ua tiav ntawm qhov kev tsim kho no thiab kev tsim kho tom ntej mus txog ntau dua 30 hnub, tag nrho cov khoom siv A system yuav tsum tau muab ntxuav kom huv thiab kaw.

4.Polyurethane foaming khoom(pu foaming tshuab) proportional cylinder:

Thaum lub sij hawm ib txwm ua haujlwm ntawm lub tshuab ua npuas ncauj polyurethane, xyuam xim rau kev tu tus kheej ntawm A cov khoom siv lub tog raj kheej, seb cov dej huv huv yog circulating li qub, seb cov kua ntxuav tau turbid, crystallized, thiab lwm yam, yog tias muaj qhov txawv txav. kev ncig, xyuas seb cov yeeb nkab ntxuav puas raug thaiv, lossis xyuas seb puas muaj crystallization hauv cov khoom siv lub tog raj kheej A;Yog hais tias cov kua circulating yog turbid thiab crystallized, nws yuav tsum tau hloov nyob rau hauv lub sij hawm.