Sealant ndi chinthu chosindikizira chomwe chimapindika mu mawonekedwe a malo osindikizira, sichosavuta kuyenda, ndipo chimakhala ndi zomatira zina. Ndi zomatira zomwe zimagwiritsidwa ntchito kudzaza mipata pakati pa zinthu kuti zigwire ntchito yosindikiza. Lili ndi ntchito zotsutsana ndi kutayikira, madzi, anti-vibration, kutsekemera kwa mawu ndi kutentha kwa kutentha.
Nthawi zambiri zimachokera ku zinthu zowuma kapena zosawuma zowoneka ngati asphalt, utomoni wachilengedwe kapena utomoni wopangira, mphira wachilengedwe kapena mphira wopangira. Amapangidwa ndi zodzaza ndi inert monga talc, dongo, kaboni wakuda, titanium dioxide ndi asibesitosi, kenako ndikuwonjezera mapulasitiki, zosungunulira, machiritso, ma accelerator, ndi zina zambiri.
Gulu la zosindikizira
Sealant ikhoza kugawidwa mu zotanuka sealant, liquid sealant gasket ndi magulu atatu a kusindikiza putty.
Malingana ndi chemical composition classification:imatha kugawidwa mumtundu wa rabara, mtundu wa utomoni, mtundu wamafuta opangidwa ndi mafuta ndi sealant yachilengedwe ya polima. Njira yogawira iyi imatha kudziwa mawonekedwe azinthu za polima, kutsimikizira kukana kwawo kutentha, kusindikiza komanso kusinthika kwamitundu yosiyanasiyana.
Mtundu wa rabala:Mtundu uwu wa sealant umachokera ku mphira. Ma rabara omwe amagwiritsidwa ntchito kwambiri ndi rabala ya polysulfide, rabala ya silikoni, labala ya polyurethane, mphira wa neoprene ndi mphira wa butyl.
Mtundu wa utomoni:Mtundu uwu wa sealant umachokera ku utomoni. Ma resin omwe amagwiritsidwa ntchito kwambiri ndi epoxy resin, unsaturated polyester resin, phenolic resin, polyacrylic resin, polyvinyl chloride resin, etc.
Zotengera Mafuta:Mtundu uwu wa sealant umachokera ku mafuta. Mafuta omwe amagwiritsidwa ntchito kawirikawiri ndi mafuta osiyanasiyana a masamba monga mafuta a linseed, mafuta a castor ndi mafuta a tung, ndi mafuta a nyama monga mafuta a nsomba.
Gulu malinga ndi ntchito:ikhoza kugawidwa mumtundu wotentha kwambiri, mtundu wotsutsa kuzizira, mtundu wa kuthamanga ndi zina zotero.
Kugawika molingana ndi mawonekedwe opangira mafilimu:Itha kugawidwa mu mtundu wowuma wowuma, mtundu wowuma wowuma, wosawuma womata komanso mtundu wowuma wa viscoelastic.
Gulu pogwiritsa ntchito:Itha kugawidwa kukhala chosindikizira chomangira, chosindikizira galimoto, chosindikizira, chosindikizira, chosindikizira, chosindikizira chamigodi ndi mitundu ina.
Malinga ndi ntchito pambuyo pomanga:ikhoza kugawidwa m'mitundu iwiri: kuchiritsa sealant ndi semi-curing sealant. Pakati pawo, kuchiritsa sealant kumatha kugawidwa kukhala olimba komanso osinthika. Chosindikizira cholimba chimakhala cholimba pambuyo pa vulcanization kapena kulimba, ndipo kawirikawiri chimakhala ndi elasticity, sichikhoza kupindika, ndipo kawirikawiri seams sangathe kusunthidwa; flexible sealants ndi zotanuka ndi zofewa pambuyo vulcanization. Chosindikizira chosachiritsika ndi chosindikizira chofewa chokhazikika chomwe chimasungabe tackifier yosawumitsa pambuyo pomanga ndikusunthira mosalekeza kumtunda.
Nthawi yotumiza: Feb-18-2022