Mafunso ndi Mayankho Ofulumira丨Kodi mumadziwa bwanji za ma silicone sealants?

Chifukwa chiyani?ma silicone sealantskukhala ndi nthawi zosiyana zowumitsa pamwamba m'nyengo yozizira ndi yachilimwe?

Yankho: Nthawi zambiri, kuuma kwapamtunda komanso kuthamanga kwa gawo limodzi lazipinda zochiritsira za RTV ndizogwirizana kwambiri ndi chinyezi chozungulira.M'nyengo yozizira, pamene chinyezi ndi kutentha kuli kochepa, chosindikizira chimakhala chouma ndipo kuthamanga kwa machiritso kumakhala kochepa.M'chilimwe, chinyezi chikakhala chambiri komanso kutentha kwambiri, chosindikiziracho chimauma ndikuchira msanga.

 

Momwe mungakwaniritsire kuchiritsa kwazinthu zamtundu umodzi wa silicone sealant?

Yankho: Chigawo chimodzi cha condensation kuchiritsa silicone mphira mankhwala amachiritsidwa pogwiritsa ntchito chinyezi mumlengalenga.Pochiritsa, kuchokera kunja kupita mkati, nthawi zambiri pansi pa 25 ° C ndi 50% RH, silikoni imatha kuchiritsa 2-3 mm patsiku, ndipo zimatenga masiku opitilira 3 kuti mukwaniritse zinthu zabwino zakuthupi.

 

Kodi silicone sealant imalimbana bwanji ndi kutentha?

Yankho: Nthawi zambiri, kutentha kwa silika gel osakaniza ndi -40 ℃-200 ℃.Kutentha kwanthawi yayitali sikuvomerezeka kupitilira 150 ℃.Kutentha kwapadera kwapadera kutentha kosagwira sealant monga silikoni yofiira yachitsulo ndi -40 ℃-250 ℃.Kutentha kwa nthawi yayitali sikudutsa 180 ℃..Kutentha kwa kutentha kumagwirizana kwambiri ndi ngati colloid imakhala yolimba.

 

Chifukwa chiyani silicone zomatira zomatira zimakhala ndi kukhuthala kosiyana m'nyengo yozizira ndi chilimwe?

Yankho: Kukhuthala kwa sealant kudzasintha ndi kutentha.M'chilimwe, mamasukidwe akayendedwe adzachepa pamene kutentha kwambiri.M'nyengo yozizira, ndizosiyana, koma zidzakhala mkati mwazovomerezeka.

 

Momwe mungawonjezere kuthamanga kwa machiritsosilicone sealant?

Yankho: Pamene makulidwe ochiritsa ndi aakulu kuposa 6mm, tikulimbikitsidwa kugwiritsa ntchito sealant kawiri;kuonjezera kutentha ndi chinyezi kumatha kufulumizitsa kuchiritsa kwa mankhwala, koma kutentha sikuyenera kupitirira 50 ° C.Kuchulukitsa chinyezi ndikwabwino kuposa kutentha.

Ngati pali madontho ndi chinyezi pamwamba pa gawo lapansi lomangira, kodi zingakhudze ntchito yosindikiza?

Musanagwiritse ntchito sealant, malo omangirira ayenera kutsukidwa bwino kuti chosindikiziracho chizitha kumamatira pamtunda.Ngati pali chinyezi kapena madontho pamwamba pa sealant pambuyo pochiritsa, zotsatira zake zimakhala zochepa.