1. Chidule cha galasi lotsekera
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Magalasi osakanizidwa ndi mtundu wa magalasi opulumutsa mphamvu omwe amagwiritsidwa ntchito kwambiri m'nyumba zamaofesi amalonda, masitolo akuluakulu, nyumba zokhalamo zapamwamba ndi nyumba zina.Ili ndi zotchingira bwino kwambiri za kutentha komanso kutsekereza mawu ndipo ndi yokongola komanso yothandiza.Magalasi osatsekeredwa amapangidwa ndi zidutswa ziwiri (kapena kupitilira apo) zagalasi zomangidwa ndi spacers.Pali mitundu iwiri ikuluikulu yosindikiza: njira ya mizere ndi njira yolumikizira guluu.Pakadali pano, kusindikiza pawiri mu njira yolumikizira guluu ndiye njira yomwe imagwiritsidwa ntchito kwambiri kusindikiza.Kapangidwe kameneka kamawonetsedwa pa Chithunzi 1: magalasi awiri amasiyanitsidwa ndi spacers, ndipo butyl sealant imagwiritsidwa ntchito kusindikiza spacer ndi galasi kutsogolo.Lembani mkati mwa spacer ndi sieve ya maselo, ndikusindikiza kusiyana komwe kunapangidwa pakati pa mphepete mwa galasi ndi kunja kwa spacer ndi chosindikizira chachiwiri.
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Ntchito ya chosindikizira choyamba ndikuletsa nthunzi yamadzi kapena mpweya wa inert kulowa ndikutuluka m'bowo.Butyl sealant nthawi zambiri imagwiritsidwa ntchito chifukwa kuchuluka kwa mpweya wamadzi ndi mpweya wotulutsa mpweya wa butyl sealant ndizochepa kwambiri.Komabe, butyl sealant palokha imakhala ndi mphamvu zochepa zomangirira komanso kutsika pang'ono, chifukwa chake mawonekedwe onse ayenera kukhazikitsidwa ndi chosindikizira chachiwiri kuti amangirire mbale zamagalasi ndi ma spacers palimodzi.Pamene galasi lotsekera lili pansi pa katundu, wosanjikiza wa sealant akhoza kukhala ndi zotsatira zabwino zosindikizira.Panthawi imodzimodziyo, dongosolo lonse silimakhudzidwa.
Chithunzi 1
2. Mitundu ya sealants yachiwiri ya magalasi otetezera
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Pali mitundu itatu ikuluikulu ya sealants yachiwiri ya magalasi otsekera: polysulfide, polyurethane ndi silikoni.Gulu 1 limatchula zina mwa mitundu itatu ya zosindikizira zitachiritsidwa bwino.
Table 1 Kuyerekeza kwa magwiridwe antchito amitundu itatu ya zosindikizira zachiwiri zamagalasi oteteza
Ubwino wa polysulfide sealant ndikuti imakhala ndi mpweya wochepa wa madzi ndi mpweya wa argon kutentha kutentha;kuipa kwake ndikuti ali ndi kuchuluka kwa mayamwidwe amadzi.
Kuthamanga kwa modulus ndi zotanuka kuchira kumachepa kwambiri pamene kutentha kumawonjezeka, ndipo mpweya wa madzi umakhala waukulu kwambiri pamene kutentha kuli kokwera.Kuphatikiza apo, chifukwa cha kuchepa kwake kwa ukalamba wa UV, kuyatsa kwa nthawi yayitali kwa UV kumayambitsa kutulutsa kopanda ndodo.
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Ubwino wa polyurethane sealant ndikuti mpweya wake wamadzi ndi mpweya wa argon umakhala wochepa, ndipo mpweya wa madzi umakhala wochepa kwambiri pamene kutentha kuli kwakukulu;kuipa kwake ndikuti ali ndi vuto losakalamba la UV.
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Silicone sealant imatanthawuza chosindikizira chokhala ndi polysiloxane monga zopangira zazikulu, zomwe zimatchedwanso ulimi wopanga silicone sealant.Unyolo wa polima wa silicone sealant umapangidwa makamaka ndi Si-O-Si, womwe umalumikizidwa kuti upangike mawonekedwe a netiweki ngati Si-O-Si mafupa panthawi yakuchiritsa.Mphamvu ya Si-O (444KJ / mol) ndi yokwera kwambiri, osati yaikulu kwambiri kuposa mphamvu zina za polima, komanso zazikulu kuposa mphamvu za ultraviolet (399KJ / mol).Mapangidwe a maselo a silicone sealant amathandizira kuti silicone sealant ikhale yabwino kwambiri komanso yotsika kutentha, kukana nyengo komanso kukana kukalamba kwa UV, komanso kuyamwa kwamadzi otsika.Kuipa kwa silicone sealant ikagwiritsidwa ntchito mu galasi lotsekera ndikokwanira kwa gasi.
3. Kusankhidwa kolondola kwa sealant yachiwiri kwa galasi lotsekera
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Ngati chomangira cha guluu wa polysulfide, guluu wa polyurethane ndi galasi zimawululidwa ndi kuwala kwa dzuwa kwa nthawi yayitali, degumming idzachitika, zomwe zidzapangitsa kuti chidutswa chakunja cha galasi lotsekereza la khoma lobisika la galasi lotsekeka ligwe kapena kusindikizidwa galasi lotsekera la khoma lotchinga galasi lothandizira mfundo kuti lithe.Choncho, sealant yachiwiri kwa insulating galasi la zobisika chimango makoma nsalu yotchinga ndi theka-obisika chimango makoma ayenera kugwiritsa ntchito silikoni structural sealant, ndi mawonekedwe kukula ayenera masamu malinga ndi JGJ102 "Mwachidziwitso Specifications kwa Glass Curtain Wall Engineering";
Chosindikizira chachiwiri chotchingira magalasi otchingira makoma a magalasi opangidwa ndi magalasi ayenera kugwiritsa ntchito silicone structural sealant;kwa chosindikizira chachiwiri cha magalasi otsekera pamakoma akulu akulu otseguka, tikulimbikitsidwa kugwiritsa ntchito magalasi otsekera a silicone structural sealant.Chosindikizira chachiwiri cha magalasi otsekeredwa pazitseko, mazenera ndi makoma wamba otseguka ansalu akhoza kukhala insulated galasi silikoni sealant, polysulfide sealant kapena polyurethane sealant.
Kutengera zomwe tafotokozazi, ogwiritsa ntchito asankhe chosindikizira chachiwiri chotchingira magalasi otsekera molingana ndi kagwiritsidwe ntchito ka galasi lotsekera.Poganizira kuti khalidwe la sealant ndiloyenera, malinga ngati lasankhidwa ndikugwiritsidwa ntchito moyenera, galasi lotetezera lingapangidwe ndi moyo wautumiki womwe umakwaniritsa zofunikira zogwiritsira ntchito.Koma ngati sichinasankhidwe bwino komanso chogwiritsidwa ntchito molakwika, ngakhale chosindikizira chabwino kwambiri chikhoza kupanga galasi lotsekereza lopanda muyezo.
Posankha chosindikizira chachiwiri, makamaka silikoni structural sealant, tiyenera kuganiziranso kuti silicone sealant iyenera kukwaniritsa zofunikira za galasi lotetezera, kugwirizanitsa ndi chosindikizira choyambirira cha butyl, ndi ntchito ya silicone sealant iyenera kukwaniritsa zofunikira. za miyezo yoyenera.Nthawi yomweyo, kukhazikika kwazinthu zosindikizira za silikoni, kutchuka kwa opanga ma silicone sealant, komanso luso laukadaulo la wopanga komanso milingo munjira yonse yogulitsa, kugulitsa, ndi kugulitsa pambuyo pake ndizofunikiranso zomwe ogwiritsa ntchito amafunikira. kuganizira.
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Makina otsekera magalasi otsekera amakhala ndi gawo lotsika la mtengo wonse wopanga magalasi otsekera, koma amakhudza kwambiri moyo wagalasi wotsekera komanso moyo wautumiki.Insulating glass structural sealant imakhudzana mwachindunji ndi zovuta zachitetezo cha khoma.Pakalipano, pamene mpikisano pamsika wa sealant umakhala wovuta kwambiri, opanga ma sealant ena samazengereza kupereka ntchito yamalonda ndi khalidwe lawo pochepetsa ndalama kuti apambane makasitomala pamitengo yotsika.Zinthu zingapo zotsika mtengo komanso zotsika mtengo zotsekera magalasi zosindikizira zawonekera pamsika.Ngati wogwiritsa ntchitoyo asankha mosasamala, kuti apulumutse ndalama zochepa za sealant, zingayambitse ngozi zachitetezo kapenanso kuyambitsa ngozi zabwino, zomwe zingayambitse kutaya kwakukulu.
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Apa Siway akukulimbikitsani kuti musankhe chinthu choyenera komanso chabwino;panthawi imodzimodziyo, tidzakudziwitsani zoopsa zosiyanasiyana zomwe zimadza chifukwa chogwiritsa ntchito magalasi otsekemera otsekemera achiwiri ndi kugwiritsa ntchito molakwika m'tsogolomu.
Nthawi yotumiza: Dec-13-2023