Imiba yobuGcisa ye-Rigid Foam Polyurethane Field Spraying
I-foam eqinile ye-polyurethane (i-PU) i-insulation material yi-polymer eneyunithi ephindaphindiweyo yesakhiwo secandelo le-carbamate, eyenziwa yi-reaction ye-isocyanate kunye ne-polyol. Ngenxa yokusebenza kwayo kakuhle kwe-thermal kunye nokusebenza okungangeni manzi, ifumana izicelo ezibanzi eludongeni lwangaphandle kunye nophahla lwe-roofing, kunye nokugcinwa okubandayo, indawo yokugcina ukutya okuziinkozo, amagumbi ogcino, imibhobho, iingcango, iifestile kunye nezinye iindawo ezikhethekileyo zokufakelwa kwe-thermal.
Okwangoku, ngaphandle kwe-roofing insulation kunye nezicelo zokuthintela amanzi, ikwasebenza ngeenjongo ezahlukeneyo ezifana neendawo zokugcina ezibandayo kunye nokufakelwa kweekhemikhali ezinkulu ukuya kobukhulu obuphakathi.
Itekhnoloji ephambili yokwakhiwa kokutshiza kwe-foam polyurethane
Ubuchwephesha bobuchwephesha bokutshiza obuqinileyo be-polyurethane bubeka imingeni ngenxa yemiba enokubakho efana nemingxunya yogwebu engalinganiyo. Kubalulekile ukomeleza uqeqesho lwabasebenzi bokwakha ukuze babe nako ukusingatha ubuchule bokutshiza ngobuchule kwaye basombulule ngokuzimeleyo iingxaki zobugcisa ezifunyenwe ngexesha lokwakha. Imiceli mngeni yobugcisa ephambili kulwakhiwo lokutshiza igxile ikakhulu kule miba ilandelayo:
Ukulawula ixesha lokwenza mhlophe kunye nesiphumo se-atomization.
Ukubunjwa kwe-polyurethane foam kubandakanya izigaba ezibini: ugwebu kunye nokunyanga.
Ukususela kwinqanaba lokuxuba kuze kube yilapho ukwandiswa kwe-foam kuphelile - le nkqubo yaziwa ngokuba yi-foam. Ngexesha lesi sigaba, ukufana kokusasazwa komngxuma weqamza kufuneka kuqwalaselwe xa isixa esikhulu se-ester eshushu esebenzayo ikhutshelwa kwinkqubo ngexesha lokutshiza. Ukufana kweBubble kuqala kuxhomekeke kwizinto ezifana nezi:
1. Ukutenxa komlinganiselo wezinto eziphathekayo
Kukho umahluko omkhulu woxinaniso phakathi kwamaqamza enziwe ngomatshini ngokuchasene nalawo aveliswe ngesandla. Ngokuqhelekileyo, umlinganiselo wezinto eziphathekayo ngumatshini ngu-1: 1; nangona kunjalo ngenxa yokwahluka kwamanqanaba e-viscosity phakathi kwemathiriyeli emhlophe yabenzi abahlukeneyo - umlinganiselo wokwenyani wemathiriyeli unokungangqinelani nolu lungelelwaniso lusisigxina olukhokelela ekungangqinelani koxinaniso logwebu olusekwe kusetyenziso lwemathiriyeli emhlophe okanye emnyama ngokugqithisileyo.
Ubushushu be-Ambient
Amagwebu ePolyurethane achukumiseke kakhulu kukuguquguquka kobushushu; inkqubo yabo yogwebu ixhomekeke kakhulu ekufumanekeni kobushushu obuvela kuzo zombini iintshukumo zekhemikhali ngaphakathi kwenkqubo ngokwayo kunye nezibonelelo zokusingqongileyo.
Xa amaqondo obushushu akwindawo engqongileyo ephakame ngokwaneleyo ukulungiselela ubushushu bokusingqongileyo - ikhawulezisa isantya sokusabela okukhokelela kumagwebu anwenwe ngokupheleleyo kunye noxinano olungaguquguqukiyo kumphezulu ukuya-kumbindi.
Ngokuchaseneyo kumaqondo obushushu asezantsi (umzekelo, ngaphantsi kwe-18°C), obunye ubushushu bokusabela buyachitheka buyokungqongileyo bubangele ixesha elide lokunyanga ecaleni kokunyuka kwamazinga okucutheka kokubumba ngaloo ndlela kunyuswa iindleko zemveliso.
3.Umoya
Ngexesha lemisebenzi yokutshiza isantya somoya kufuneka sihlale singaphantsi kwe-5m/s; ukugqitha kulo mda kuphephezela kude ubushushu obuveliswa yimpendulo echaphazela ukubila amagwebu ngokukhawuleza ngelixa isenza umphezulu wemveliso ube brittle.
4.Base ubushushu kunye nokufuma
Amaqondo obushushu esiseko eludongeni aphembelela kakhulu ukusebenza kakuhle kogwebu lwepolyurethane ngexesha lenkqubo yokufakwa kwezicelo ingakumbi ukuba i-ambient & base wall temps iphantsi - ukufunxwa ngokukhawuleza kwenzeka emva kokugquma okokuqala kunciphisa isivuno semathiriyeli.
Ke ngoko ukunciphisa amaxesha okuphumla kwasemini ngexesha lolwakhiwo ecaleni kwamalungiselelo okucwangciswa okucwangcisiweyo kubaluleke kakhulu ekuqinisekiseni awona mazinga okwandiswa kwe-foam polyurethane.
I-Rigid Polyurethane Foam imele imveliso yepolymer eyenziwe ngokusabela phakathi kwamacandelo amabini - Isocyanate & Polyether edibeneyo.
Amalungu e-Isocyanate asabela ngokukhawuleza ngamanzi avelisa iibhondi ze-urea; Ukwanda komxholo webhondi ye-urea yenza amagwebu abe bubuvuvu ngelixa kuncipha ukuncamathela phakathi kwawo kunye neesubstrates kungoko kunyanzeleke ukuba kucoceke umphezulu wesubstrate owomileyo ongenamhlwa/uthuli/ubufuma/ungcoliseko ukuthintela iintsuku ezinemvula apho umbethe/iqabaka ubukho bufuna ukususwa kulandelwe kukomiswa phambi kokuba kuqhutyekwe phambili.
Ixesha lokuposa: Jul-16-2024