Kukho izinto ezininzi ezichaphazela umgangatho we-polyurethane spray foam.Okulandelayo, siya kugxininisa kwizinto ezisixhenxe eziphambili ezichaphazela umgangatho wayo.Ukuba uyaziqonda ezi zinto zilandelayo ziphambili, uya kukwazi ukulawula umgangatho we-polyurethane spray foam kakuhle kakhulu.

1. Impembelelo yomgangatho ophezulu kunye nomgangatho ophezulu wesiseko sodonga.

Ukuba kukho uthuli, ioli, umswakama kunye nokungalingani phezu kodonga lwangaphandle, kuya kuchaphazela kakhulu ukunamathela, ukugquma kunye nokukhanya kwe-polyurethane foam kwi-insulation layer.Ngoko ke, kuyimfuneko ukuqinisekisa ukuba umphezulu wodonga ucocekile kwaye usicaba phambi kokutshiza.

2. Iimpembelelo zokufuma kugwebu lwe-aerosol.

Njengoko i-ejenti yogwebu ithanda ukusabela kweekhemikhali ngamanzi, umxholo wemveliso uyakhula, othanda ukunyusa i-brittleness ye-polyurethane foam kwaye iya kuchaphazela ngokunzulu ukunamathela kwe-polyurethane foam eludongeni.Ngoko ke, iindonga zangaphandle zezakhiwo zifafazwe nge-polyurethane foam eqinile ngaphambi kokwakhiwa, kwaye kungcono ukuxubha umaleko we-polyurethane primer (ukuba iindonga zomile ngokupheleleyo ehlotyeni, inyathelo linokugcinwa).

3. Impembelelo yomoya.

Ugwebu lwepolyurethane lwenziwa ngaphandle.Xa isantya somoya sidlula i-5m/s, ilahleko yobushushu kwinkqubo yogwebu inkulu kakhulu, ilahleko yempahla ekrwada inkulu kakhulu, ixabiso liyanyuka, kwaye amathontsi e-athomu alula ukubhabha nomoya.Ukungcoliseka kwendalo kunokusombululeka ngamakhethini angangeni moya.

4. Impembelelo yobushushu be-ambient kunye nobushushu bodonga.

Uluhlu olufanelekileyo lweqondo lokushisa lokutshiza i-polyurethane foam kufuneka libe yi-10 ° C-35 ° C, ngakumbi ukushisa kwendawo yodonga kunempembelelo enkulu ekwakhiweni.Xa iqondo lokushisa lingaphantsi kwe-10, i-foam ilula ukukhupha udonga kunye ne-bulge, kwaye ubuninzi be-foam bukhula kakhulu kwaye buchitha izinto eziluhlaza;xa iqondo lokushisa liphezulu kune-35 ° C, ilahleko ye-ejenti yogwebu inkulu kakhulu, eya kuchaphazela umphumo we-foaming.

5.Ukutshiza ubukhulu.

Xa utshiza i-polyurethane foam eqinile, ubukhulu bokutshiza bunempembelelo enkulu kumgangatho kunye neendleko.Xa i-polyurethane itshiza ulwakhiwo lwangaphandle lwe-insulation wall, ubukhulu be-insulation layer ayikho enkulu, ngokubanzi i-2.03.5 cm, ngenxa yokufakelwa kakuhle kwe-polyurethane foam.Kule ndawo, ubukhulu be-spray akufanele budlule i-1.0 cm.Qinisekisa ukuba umphezulu wesitshizi esitshiziweyo usicaba.I-slope inokulawulwa kuluhlu lwe-1.0-1.5 cm.Ukuba ubukhulu be-aerosol bukhulu kakhulu, umgangatho uya kuba nzima ukulawula.Ukuba ubukhulu be-aerosol buncinci kakhulu, ubuninzi be-insulation layer buya kwanda, ukuchitha izinto eziluhlaza kunye nokunyusa iindleko.

6. Ukutshiza umgama kunye neemeko ze-engile.

Iqonga lomsebenzi wokutshiza ugwebu ngokubanzi liyisikafula okanye iingobozi ezijingayo, ukufumana umgangatho olungileyo wegwebu, umpu ukugcina i-engile ethile kunye nomgama wokutshiza kubalulekile.I-angle echanekileyo yompu wokutshiza ilawulwa ngokubanzi kwi-70-90, kwaye umgama phakathi kompu wokutshiza kunye nento etshizwayo kufuneka ugcinwe ngaphakathi kwe-0.8-1.5m.Ke ngoko, ukwakhiwa kokutshiza kwe-polyurethane kufuneka kube nabasebenzi bokwakha abanamava ukuze baqhube ukwakhiwa, kungenjalo kuya kuchaphazela umgangatho kunye nokunyusa iindleko.

I-7.I-interface yonyango ye-interface ye-regid polyurethane foam insulation layer.

Emva kokutshiza i-polyurethane foam eqinile ukuya kubukhulu obufunekayo, unyango lwe-interface lunokwenziwa emva kwe-0.5h, oko kukuthi xubha i-arhente yojongano lwe-polyurethane.I-arhente ye-interface jikelele ayifanele isetyenziswe ngaphezu kwe-4h (inokugcinwa xa kungekho kukhanya kwelanga).Oku kungenxa yokuba emva kwe-0.5h yogwebu, amandla e-polyurethane foam eqinile afikelela ngaphezu kwe-80% yamandla awona aphezulu kunye nesantya sokutshintsha kobukhulu bungaphantsi kwe-5%.I-polyurethane foam eqinile sele ikwimeko ezinzileyo.kwaye kufuneka zikhuselwe ngokukhawuleza.I-plastering ye-level layering ingenziwa emva kokuba i-agent ye-polyurethane interface isetyenziswe kwiiyure ezingama-24 kwaye ekugqibeleni ibekwe.

Kubalulekile ukunikela ingqalelo kwizinto ezichaphazela umgangatho we-polyurethane spray foam ngexesha lokwakha kunye nokuzama ukuphepha ilahleko engeyomfuneko.Abathengi bayacetyiswa ukuba bakhethe iqela lokwakha elinobuchule ukuze baqinisekise zombini inkqubela yokwakha kunye nomgangatho weprojekthi.