Uma i-silicone sealant inezinkinga zekhwalithi, izoholela ekuphuzeni kwamanzi, ukuvuza komoya nezinye izinkinga, okuzothinta kakhulu ukuqina komoya kanye nokuqina kwamanzi kweminyango namafasitela.
Imifantu nokuvuza kwamanzi okubangelwa ukwehluleka kwesivalo somnyango nefasitela
Ngakho-ke sikhetha kanjani isivali esifanele seminyango namafasitela?
1. Khetha kahle imikhiqizo ehlangabezana nezindinganiso
Ngesikhathi sokukhetha i-sealant, kufanele kuqashelwe hhayi nje kuphela izinga elihlangabezana nalo, kodwa futhi nasezingeni layo lokufuduka elihambisanayo. Umthamo wokufuduka uyinkomba ebaluleke kakhulu yokukala ukunwebeka kwe-sealant. Uma umthamo wokufuduka uphakeme, kulapho ukunwebeka kwe-silicone sealant kuba ngcono. Ukucubungula nokufakwa kweminyango namafasitela kufanele kukhethwe imikhiqizo enomthamo wokufuduka ongaphansi kuka-12.5 ukuqinisekisa ukuqina komoya isikhathi eside kanye nokuqina kwamanzi kweminyango namafasitela.
Ngesikhathi sokufakwa nokusetshenziswa kweminyango namafasitela, umphumela wokubopha phakathi kwe-sealant evamile kanye nekhonkrithi yesamente uvame ukuba mubi kakhulu kunaleyo enephrofayili ye-aluminium noma ingilazi yeminyango namafasitela. Ngakho-ke, kufanelekile ukukhetha imikhiqizo evumelana ne-JC/T 881 njenge-sealant yokufaka iminyango namafasitela.
Imikhiqizo enezinga eliphezulu lokufuduka inamandla amakhulu okubekezelela izinguquko zokufuduka kwamalunga. Kunconywa ukukhetha imikhiqizo enezinga eliphezulu lokufuduka ngangokunokwenzeka.
2. Khethai-siliconeimikhiqizo yokuvala ngokufanele ngokwenhloso
Amafasitela ohlaka olufihliwe kanye namafeni okuvula uhlaka afihliwe adinga isivali sokwakheka ukuze adlale indima yokubopha kwesakhiwo. Isivali sokwakheka se-silicone kumele sisetshenziswe, futhi ububanzi nobukhulu baso bokubopha kufanele kuhlangabezane nezidingo zomklamo.
Ngesikhathi sokufakwa kweminyango namafasitela, isivali sezingxenye zamatshe noma izihlanganisi ezinetshe ohlangothini olulodwa kufanele sibe isivali esikhethekile setshe esihlangabezana nezindinganiso ze-GB/T 23261.
Isivali esingashisi umlilo silungele kakhulu iminyango namafasitela angashisi noma iminyango yangaphandle namafasitela ezakhiwo ezidinga ukuqina komlilo.
Ezindaweni zokufaka izicelo ezinezidingo ezikhethekile zokuvimbela isikhunta, njengekhishi, izindlu zangasese kanye nezingxenye ezimnyama nezimanzi, ukuvalwa kweminyango namafasitela kufanele kusetshenziswe isivali esingavimbeli isikhunta.
3. Ungakhethi i-silicone sealant egcwele uwoyela!
Njengamanje, imakethe igcwele inani elikhulu lezinto zokuvala iminyango namafasitela ezigcwele uwoyela, ezigcwele uwoyela omningi wamaminerali futhi ezingakwazi ukuguga kahle, okuzoholela ezinkingeni eziningi zekhwalithi.
I-silicone sealant exutshwe namafutha amaminerali ibizwa ngokuthi "i-silicone sealant egcwele uwoyela" embonini. Uwoyela wamaminerali ungowe-alkane petroleum distillation egcwele i-alkane petroleum. Ngenxa yokuthi isakhiwo sawo sama-molecule sihluke kakhulu kwese-silicone, ukuhambisana kwawo nohlelo lwe-silicone sealant akubi, futhi uzothutha futhi angene ngaphandle kwe-silicone sealant ngemva kwesikhathi esithile. Ngakho-ke, "i-oil filled sealant" inokuqina okuhle ekuqaleni, kodwa ngemva kokusebenzisa isikhathi esithile, uwoyela wamaminerali ogcwele uyathutha futhi angene kusuka ku-sealant, futhi i-sealant izoncipha, iqine, iqhekeke, futhi ibe nenkinga yokungabophi.
Ama-silicone sealant amaningi ashibhile emakethe agcwele uwoyela wamaminerali, kanti okuqukethwe yi-silicone basic polymer kungaphansi kakhulu kuka-50%, kanti amanye angaphansi ngisho nakancane kuka-20%.
Uma isivali sefasitela lokugcwalisa igesi sithinta ingilazi yokuvikela, uwoyela wamaminerali ogcwele uzohamba futhi ungene engilazini yokuvikela, okuholela ekuncibilikeni kwerabha ye-butyl yokuvala yengilazi yokuvikela kanye nokugeleza kwamafutha.
Khetha imikhiqizo ye-sealant esezingeni eliphezulu. Nakuba intengo ye-sealant ethengwe esigabeni sokuqala iphakeme kancane, ukusebenza kwayo kungagcinwa isikhathi eside ngaphandle kwezinkinga zekhwalithi. Khetha i-"sealant egcwele uwoyela" engabizi kakhulu, yize intengo ishibhile, izindleko zokutshalwa kwezimali zokuqala ziphansi kancane; Kodwa-ke, ngemva kokuvela kwezinkinga, izindleko zokulungisa kamuva, izindleko zomkhiqizo, izindleko zabasebenzi, ukulahlekelwa komkhiqizo, njll. ngesikhathi sokulungiswa kabusha kungaba izikhathi eziningana noma ngisho neziningi zentengo ye-sealant uqobo; Akugcini nje ngokulondoloza imali, kodwa kwenezele izinkinga eziningi kubasebenzisi.
Isikhathi sokuthunyelwe: Julayi-07-2022