Zisindikizo ziwiri za Component Structural silicone zimakhala ndi mphamvu zambiri, zimatha kunyamula katundu wambiri, komanso zimagonjetsedwa ndi ukalamba, kutopa, ndi dzimbiri, ndipo zimakhala ndi ntchito yokhazikika mkati mwa nthawi yomwe ikuyembekezeka.Ndizoyenera zomatira zomwe zimalimbana ndi kugwirizana kwa zigawo zamapangidwe.Amagwiritsidwa ntchito kwambiri pomangirira zitsulo, zoumba, mapulasitiki, mphira, matabwa ndi zinthu zina zamtundu womwewo kapena pakati pamitundu yosiyanasiyana yazinthu, ndipo zimatha kusintha pang'ono mafomu olumikizirana azikhalidwe monga kuwotcherera, kukwera ndi ma bolting.
Silicone structural sealant ndi chinthu chofunikira chomwe chimagwiritsidwa ntchito pamakoma obisika kapena obisika agalasi.Mwa kulumikiza mbale ndi mafelemu achitsulo, imatha kupirira katundu wa mphepo ndi magalasi odzilemera okha, omwe amagwirizana mwachindunji ndi kulimba ndi chitetezo cha zomangamanga zomanga khoma.Chimodzi mwazinthu zazikulu zachitetezo cha khoma lamagalasi.
Ndi chosindikizira chomangika chokhala ndi linear polysiloxane monga zida zazikulu.Pa kuchiritsa ndondomeko, wothandizila crosslinking amachitira ndi polima m'munsi kupanga zotanuka zinthu ndi atatu azithunzi-thunzi maukonde kapangidwe. O zenizeni zakuthupi ndi mankhwala: kutalika kwa mgwirizano 0.164 ± 0.003nm, kutentha kwapadera mphamvu 460.5J / mol. (monga polyurethane, acrylic, polysulfide sealant, etc.), UV kukana ndi kukana Kutha kwa ukalamba mumlengalenga ndi kolimba, ndipo sikungathe kusunga ming'alu ndi kuwonongeka kwa zaka 30 m'malo osiyanasiyana a nyengo.Ili ndi ± 50% kukana kusinthika ndi kusamuka mumtundu wambiri wa kutentha.Komabe, ndi kuwonjezeka kwa ntchito silikoni structural sealants, mavuto osiyanasiyana adzaoneka ntchito zothandiza, monga: tinthu agglomeration ndi pulverization wa chigawo B, tsankho ndi stratification wa chigawo B, psinjika mbale sangathe mbande kapena guluu ndi. Kutembenuka, liwiro lotulutsa guluu la makina omatira limachedwa, guluu wa gulugufe amakhala ndi tinthu ting'onoting'ono, nthawi yowuma pamwamba ndi yothamanga kwambiri kapena pang'onopang'ono, guluu limawoneka ngati likuphwanyidwa kapena vulcanization, ndipo "guluu wamaluwa" amawoneka pagulu. kupanga ndondomeko.", colloid sichingachiritsidwe bwino, manja omata patatha masiku angapo akuchiritsidwa, kuuma kwake kumakhala kosazolowereka pambuyo pochiritsidwa, pali pores ngati singano pamtunda womangirira ndi gawo lapansi, mpweya wa thovu umatsekeredwa mu silicone sealant, kusamvana kosauka. ndi gawo lapansi, zosagwirizana ndi zowonjezera, ndi zina.
2.FAQ kusanthula kwa Two Component Structure silicone zomatira
2.1 B gawo ali tinthu agglomeration ndi pulverization
Ngati tinthu agglomeration ndi pulverization wa chigawo B kumachitika, pali zifukwa ziwiri: chimodzi ndi chakuti chodabwitsa ichi chachitika mu chapamwamba wosanjikiza pamaso ntchito, chifukwa cha osauka kusindikiza phukusi, ndi mtanda kugwirizana wothandizila kapena kugwirizana wothandizira mu chigawo B ndi Active pawiri, sachedwa chinyezi mu mlengalenga, gulu ili ayenera kubwezeredwa kwa Mlengi.Chachiwiri ndi chakuti makinawo amatsekedwa panthawi yogwiritsidwa ntchito, ndipo particle agglomeration ndi pulverization imachitika pamene makinawo amayatsidwanso, kusonyeza kuti chisindikizo pakati pa mbale yokakamiza ya makina a guluu ndi zinthu za mphira si zabwino, ndi zipangizo. akuyenera kulumikizidwa kuti athetse vutoli.
2.2 Liwiro la makina omatira ndi pang'onopang'ono
Chogulitsacho chikagwiritsidwa ntchito kwa nthawi yoyamba, liwiro lotulutsa guluu pamakina a gluing limachedwa kwambiri panthawi ya gluing.Pali zifukwa zitatu: ⑴ chigawo A chimakhala ndi madzi ochepa, ⑵ mbale yothamanga ndi yaikulu kwambiri, ndipo ⑶ mphamvu ya mpweya sikwanira.
Zikatsimikiziridwa kuti ndi chifukwa choyamba kapena chifukwa chachitatu, tikhoza kuthetsa mwa kusintha kupanikizika kwa mfuti ya glue;zikadziwika kuti ndi chifukwa chachiwiri, kuyitanitsa mbiya yokhala ndi mawonekedwe ofananirako kumatha kuthetsa vutoli.Ngati liwiro la guluu limatulutsa pang'onopang'ono panthawi yogwiritsira ntchito bwino, zikhoza kukhala kuti maziko osakaniza ndi fyuluta yatsekedwa.Akapezeka, zidazo zimafunika kutsukidwa munthawi yake.
2.3 Nthawi yotulutsa imathamanga kwambiri kapena pang'onopang'ono
Nthawi yosweka ya zomatira zomangira zimatanthawuza nthawi yomwe imatengera kuti colloid isinthe kuchoka pa phala kupita ku thupi lotanuka pambuyo pakusakanikirana, ndipo nthawi zambiri imayesedwa mphindi zisanu zilizonse.Pali zinthu zitatu zomwe zimakhudza kuyanika ndi kuchiritsa kwa mphira pamwamba: (1) chikoka cha gawo la zigawo A ndi B, etc.;(2) kutentha ndi chinyezi (chikoka cha kutentha ndicho chachikulu);(3) chilinganizo cha mankhwalawo ndi cholakwika.
Yankho la chifukwa (1) ndikusintha chiŵerengero.Kuchulukitsa gawo la gawo B kumatha kufupikitsa nthawi yochiritsa ndikupangitsa kuti zomatira zikhale zolimba komanso zolimba;pamene kuchepetsa gawo la machiritso kumatalikitsa nthawi yochiritsa, zomatira zimakhala zofewa, zolimba zidzakulitsidwa ndipo mphamvu idzawonjezeka.kuchepetsa.
Nthawi zambiri, chiŵerengero cha voliyumu cha chigawo A:B chikhoza kusinthidwa pakati pa (9–13:1).Ngati gawo la chigawo B ndi lalitali, liwiro la zomwe likuchita lidzakhala lachangu ndipo nthawi yosweka idzakhala yaifupi.Ngati kuchitako kuli mofulumira kwambiri, nthawi yodula ndi kuimitsa mfuti idzakhudzidwa.Ngati ikuchedwa kwambiri, idzakhudza nthawi yowuma ya colloid.Nthawi yopuma nthawi zambiri imasinthidwa pakati pa mphindi 20 mpaka 60.Kuchita kwa colloid pambuyo pochiritsa mu chiŵerengero ichi kumakhala kofanana.Kuonjezera apo, pamene kutentha kwa zomangamanga kuli kwakukulu kwambiri kapena kotsika kwambiri, tikhoza kuchepetsa kapena kuonjezera gawo la gawo B (ochiritsa wothandizira), kuti tikwaniritse cholinga chokonzekera kuyanika pamwamba ndi kuchiritsa nthawi ya colloid.Ngati pali vuto ndi mankhwalawo, mankhwalawa amafunika kusinthidwa.
2.4 "Gluu wamaluwa" amawoneka pakupanga gluing
Chingamu chamaluwa chimapangidwa chifukwa cha kusakanikirana kosagwirizana kwa ma colloids a zigawo za A / B, ndipo zimawoneka ngati mzere woyera wamba.Zifukwa zazikulu ndi izi: ⑴Paipi ya gawo B la makina omatira ndi otsekedwa;⑵Chosakaniza chokhazikika sichinatsukidwe kwa nthawi yayitali;⑶Sikelo ndi yotayirira ndipo kuthamanga kwa guluu sikufanana;Itha kuthetsedwa poyeretsa zida;pazifukwa (3), muyenera kuyang'ana woyang'anira molingana ndikusintha koyenera.
2.5 Kutsuka kapena vulcanization ya colloid panthawi yopanga guluu
Pamene zomatira zamagulu awiri zimachiritsidwa pang'ono panthawi yosakaniza, guluu wopangidwa ndi mfuti ya glue adzawoneka ngati khungu kapena vulcanization.Ngati palibe cholakwika mu liwiro la kuchiritsa ndi kutulutsa guluu, koma guluuyo akadali ophwanyika kapena kutenthedwa, zitha kukhala kuti zidazo zatsekedwa kwa nthawi yayitali, mfuti ya glue sinatsukidwe kapena mfutiyo sinali. kutsukidwa bwino, ndipo kutumphuka kapena guluu vulcanized ayenera kutsukidwa.Kumanga pambuyo kuyeretsa.
2.6 Pali thovu la mpweya mu silicone sealant
Nthawi zambiri, colloid palokha ilibe thovu la mpweya, ndipo nthiti za mpweya zomwe zili mu colloid zimatha kusakanikirana ndi mpweya panthawi yamayendedwe kapena pomanga, monga: ⑴Utsiwo sutsukidwa pamene mbiya ya rabala yasinthidwa;⑵Zigawozo zimapanikizidwa pa mbale zitayikidwa pamakina Osapanikizidwa, zomwe zimapangitsa kuti thovu silinathe.Choncho, chithovucho chiyenera kuchotsedwa bwino musanagwiritse ntchito, ndipo makina a glue ayenera kugwiritsidwa ntchito moyenera panthawi yomwe akugwiritsidwa ntchito kuti atsimikizire kusindikiza ndi kuteteza mpweya kulowa.
2.7 Kusamamatira ku gawo lapansi
Sealant si zomatira zapadziko lonse lapansi, chifukwa chake sizingatsimikizidwe kuti zimalumikizana bwino ndi magawo onse ogwiritsira ntchito.Ndi kusiyanasiyana kwa njira zochiritsira zapansi panthaka ndi njira zatsopano, liwiro lomangirira ndi kugwirizana kwa ma sealants ndi magawo amasiyananso.
Pali mitundu itatu ya kuwonongeka kwa mawonekedwe olumikizirana pakati pa zomatira zamapangidwe ndi gawo lapansi.Chimodzi ndi kuwonongeka kwa mgwirizano, ndiko kuti, mphamvu yogwirizanitsa> mphamvu yogwirizanitsa;china ndi kuwonongeka kwa mgwirizano, ndiko kuti, mphamvu yogwirizanitsa
⑴ Gawolo palokha ndilovuta kulumikiza, monga PP ndi PE.Chifukwa cha kuchuluka kwa ma crystallinity a mamolekyulu komanso kutsika kwapamtunda, sangathe kupanga kufalikira kwa ma cell ndi kulumikizidwa ndi zinthu zambiri, kotero sangathe kupanga chomangira cholimba pamawonekedwe.Kumamatira;
⑵ Kulumikizana kwazinthuzo ndi kocheperako, ndipo kumatha kugwira ntchito pazigawo zina;
⑶ nthawi yokonza sikwanira.Kawirikawiri, zomatira zamagulu awiri ziyenera kuchiritsidwa kwa masiku osachepera atatu, pamene zomatira zamtundu umodzi ziyenera kuchiritsidwa kwa masiku 7.Ngati kutentha ndi chinyezi cha malo ochiritsira ndizochepa, nthawi yochiritsa iyenera kuwonjezereka.
⑷ Chiŵerengero cha zigawo A ndi B ndizolakwika.Mukamagwiritsa ntchito zinthu ziwiri, wogwiritsa ntchitoyo ayenera kutsatira mosamalitsa chiŵerengero chomwe wopanga amafunikira kuti asinthe chiŵerengero cha guluu ndi machiritso, apo ayi mavuto akhoza kuchitika kumayambiriro kwa machiritso, kapena pakapita nthawi yogwiritsira ntchito. kumamatira, kukana nyengo ndi kulimba.funso;
⑸ Kulephera kuyeretsa gawo lapansi ngati pakufunika.Popeza fumbi, dothi ndi zonyansa pamwamba pa gawo lapansi zidzalepheretsa kugwirizanitsa, ziyenera kutsukidwa mosamalitsa musanagwiritse ntchito kuti zitsimikizire kuti zomatira zamapangidwe ndi gawo lapansi zimagwirizana bwino.
⑹ Kulephera kugwiritsa ntchito zoyambira momwe zingafunikire.Choyambiriracho chimagwiritsidwa ntchito pokonzekera pamwamba pa mbiri ya aluminiyamu, yomwe imatha kupititsa patsogolo kukana kwamadzi ndi kulimba kwa chomangira ndikufupikitsa nthawi yomangirira.Chifukwa chake, pamagwiritsidwe enieni a uinjiniya, tiyenera kugwiritsa ntchito choyambira molondola ndikupewa mosamalitsa kutsitsa komwe kumachitika chifukwa chogwiritsa ntchito molakwika.
2.8 Kusagwirizana ndi Chalk
Chifukwa chosagwirizana ndi zidazo ndikuti chosindikizira chimakhala ndi mawonekedwe akuthupi kapena amankhwala ndi zida zomwe zimalumikizana, zomwe zimapangitsa kuti pakhale zoopsa monga kusinthika kwa zomatira zomangira, kusamamatira ku gawo lapansi, kuwonongeka kwa magwiridwe antchito a zomatira zomangira. , ndi kufupikitsa moyo wa zomatira zomangira.
3. Mapeto
Zomatira zomata za silicone zimakhala ndi mphamvu zambiri, kukhazikika kwakukulu, kukana kukalamba bwino, kukana kutentha kwambiri ndi zinthu zina zabwino kwambiri, ndipo zimagwiritsidwa ntchito kwambiri pomanga makoma a makatani.Komabe, muzogwiritsira ntchito, chifukwa cha zinthu zaumunthu ndi zovuta zazitsulo zosankhidwa (zomangamanga sizingathe kutsatiridwa mosamalitsa), ntchito ya zomatira zomangira zimakhudzidwa kwambiri, ndipo zimakhala zosavomerezeka.Choncho, mayeso ngakhale ndi mayeso adhesion wa galasi, zipangizo zotayidwa ndi Chalk ayenera kufufuzidwa musanamangidwe, ndi zofunika pa ulalo aliyense ayenera kutsatiridwa mosamalitsa pa ntchito yomanga, kuti tikwaniritse zotsatira za zomatira structural ndi kuonetsetsa khalidwe la polojekiti.
Nthawi yotumiza: Nov-30-2022