Sealant ikunena za chinthu chosindikizira chomwe chimaletsa ndi mawonekedwe a chipilala, sikophweka kuyenda, ndipo ali ndi machitidwe ena.
Ndi chomatira chomatira chodzaza mipata yosinthira. Ili ndi ntchito za anti-Kutayikira, madzi othirira, otsutsa, kugwedezeka, kusokonekera kwa kutentha ndi kutentha. Nthawi zambiri, zida zouma kapena zowuma monga phulali, zopangira zachilengedwe kapena zopangidwa mwachilengedwe zimagwiritsidwa ntchito ngati tambala, dongo lakuda, ndipo asbestos amawonjezeredwa. Mapulasitiki, ma solt, othandizira, oyeserera, othamanga, etc. Itha kugawidwa m'magulu atatu: masiketi osindikizira, masamba osindikizira ndi malo osindikizira. Amagwiritsidwa ntchito kwambiri pakusindikizidwa kwa kapangidwe kake, mayendedwe, zida zamagetsi ndi zigawo.
Pali mitundu yambiri ya zosindikiza: Silicone Plalants, zosindikiza za polysulfide, zigawo za Anaelic, zigawo za acaecy, zizindikiro za PVC, ndi zigawo zigawo za aspha.
Malo akuluakulu a sealant
(1) Maonekedwe: Kuwoneka kwa sealant kumatsimikiziridwa ndi kubadwa kwa filler pansi. Filler ndi ufa wolimba. Pambuyo wobalalitsidwa ndi handarer, chopukusira ndi makina ophatikizika, amatha kubalalika mu mphira wapansi kuti apange phala labwino. Mchenga wocheperako kapena mchenga ndi wovomerezeka komanso wabwinobwino. Ngati filler sinabalalike bwino, tinthu tating'onoting'ono tambiri tidzaonekera. Kuphatikiza pa kubalalika kwa mafayilo, zinthu zina zimakhudzanso kuwonekera, monga kusakaniza tinthu tating'onoting'ono, kuwononga, ndi zina.
(2) Kuumitsa
(3) Mphamvu yamphamvu
(4) elongition
(5) Tansile modulus ndi kuthekera kosatha
(6) Kutsatira kutengera
. Guluu lalikulu kwambiri limakhala ndi zochulukirapo, ndipo zidzakhala zovuta kwambiri pogwiritsa ntchito. Komabe, ngati guluu limapangidwa pang'ono kungoganiza zochepa thupi kungoganiza zowonjezera, zimakhudza thixotropy ya sealant. Kutulutsa kumatha kuyerekezera ndi njira yomwe yafotokozedwa mu National Standard.
(8) Thixotropy: Ili ndi chinthu chinanso cha zomangamanga za sealant. Thixotropy ndi yosemphana ndi madzimadzi, zomwe zikutanthauza kuti chosindikizira chimangosintha mawonekedwe ake mwakukakamizidwa, ndipo amatha kukhala ndi mawonekedwe ake pomwe palibe mphamvu yakunja. mawonekedwe popanda kuyenda. Kutsimikiza kwa sag kutchulidwa ndi mtundu wa National Firiver ndi chiweruziro cha thixotropy ya sealant.
Post Nthawi: Nov-04-2022