Kutheni usenzai-silicone sealantsbanamaxesha awohlukeneyo okumisa umphezulu ebusika nasehlotyeni?
Impendulo: Ngokubanzi, ukoma komphezulu kunye nesantya sokunyanga secandelo elinye lobushushu begumbi lokunyanga iimveliso ze-RTV zinxulumene ngokusondeleyo nokufuma okukhoyo. Ebusika, xa ukufuma kunye namaqondo obushushu ephantsi, into yokutywina iya koma phezu komhlaba kwaye isantya sokunyanga sicotha. Ehlotyeni, xa umswakama uphezulu kwaye iqondo lokushisa liphezulu, i-sealant iya koma kwaye iphilise ngokukhawuleza.
Ukufikelela njani okona kulungileyo kokunyanga kwemveliso ye-silicone yecandelo elinye?
Impendulo: I-condensation ye-condensation ephilisa iimveliso ze-rubber ze-silicone zinyangwa ngokusebenzisa umswakama emoyeni. Xa uphilisa, ukusuka ngaphandle ukuya ngaphakathi, ngokuqhelekileyo phantsi kweemeko ze-25 ° C kunye ne-50% ye-RH, i-silicone inokunyanga i-2-3 mm ngosuku, kwaye ithatha ngaphezu kweentsuku ezi-3 ukufezekisa iipropati ezifanelekileyo zomzimba.
Ingaba i-silicone ikhusela kangakanani ubushushu?
Impendulo: Ngokubanzi, ubushushu bejeli ye-silica yi-40℃-200℃. Ubushushu bokusetyenziswa kwexesha elide abukhuthazwa ukuba budlule kwi-150 ℃. Uluhlu lweqondo lobushushu le-sealant ekhethekileyo yokumelana nobushushu obufana ne-silicone ebomvu yentsimbi yi-40℃-250℃. Ubushushu bokusetyenziswa kwexesha elide alidluli kwi-180 ℃. . Ukumelana nobushushu kuhambelana ngokusondeleyo nokuba i-colloid iqiniswe ngokupheleleyo.
Kutheni i-adhesive sealant ye-silicone ine-viscosity eyahlukileyo ebusika nasehlotyeni?
Impendulo: I-viscosity ye-sealant iya kutshintsha kunye nobushushu. Ehlotyeni, i-viscosity iya kuncipha xa ubushushu buphezulu. Ebusika, kuchasene nje, kodwa kuya kuba phakathi koluhlu olwamkelekileyo.
Indlela yokunyusa isantya sokunyangai-silicone sealant?
Impendulo: Xa ubukhulu bokunyanga bungaphezu kwe-6mm, kucetyiswa ukuba usebenzise i-sealant kabini; ukwandisa iqondo lobushushu kunye nokufuma kunokukhawulezisa isantya sokunyanga imveliso, kodwa ubushushu akufunekanga budlule kwi-50°C. Ukunyusa ukufuma kungcono kunokunyusa ubushushu.
Ukuba kukho amabala kunye nomswakama kumphezulu we-substrate yokudibanisa, ngaba kuya kuchaphazela ukusebenza kokutywinwa?
Ngaphambi kokufaka i-sealant, indawo yokudibanisa kufuneka ihlambuluke ngokupheleleyo ukuze i-sealant ibambelele ngokupheleleyo kwindawo yokudibanisa. Ukuba kukho ukufuma okanye amabala kwi-sealant surface emva kokunyanga, impembelelo iya kuba yincinci.
Ixesha lokuposa: Nov-23-2023