Ezikhathini zasekwindla nasebusika, njengoba umswakama olinganiselwe emoyeni wehla futhi umehluko wokushisa phakathi kwasekuseni nakusihlwa ukhuphuka, ubuso bezindawo zokunamathela zezindonga zamakhethini engilazi kanye nezindonga zamakhethini ephaneli ye-aluminium buzovela kancane kancane futhi buguge ezindaweni ezahlukene zokwakha. Ngisho neminye imisebenzi yomnyango namafasitela ingase ibhekane nokuguquguquka kobuso kanye nokuphuma kwezindawo zokunamathela ngosuku olufanayo noma zingakapheli izinsuku ezimbalwa zokuvalwa. Sikubiza ngokuthi ukuqhuma kwe-sealant.
1. Kuyini ukuvuvuka kwe-sealant?
Inqubo yokulungisa ye-single component construction engangenisi manzi incike ekuphenduleni nomswakama emoyeni. Lapho ijubane lokulungisa le-sealant lihamba kancane, isikhathi esidingekayo sokujula okwanele kokulungisa ubuso sizoba side. Lapho ubuso be-sealant bungakaqini ngokwanele, uma ububanzi bomthungo wokunamathela bushintsha kakhulu (ngokuvamile ngenxa yokwanda kokushisa nokufinyela kwephaneli), ubuso bomthungo wokunamathela buzothinteka futhi bungalingani. Ngezinye izikhathi kuba ukuvuvuka phakathi komthungo wonke wokunamathela, ngezinye izikhathi kuba ukuvuvuka okuqhubekayo, futhi ngezinye izikhathi kuba ukuguqulwa okusontekile. Ngemva kokulungisa kokugcina, lezi zithungo zokunamathela ebusweni ezingalingani zonke ziqinile ngaphakathi (hhayi amabhamuza angenalutho), zibizwa ngokuthi "ukuvuvuka".
Ukuvuvuka komthungo onamathelayo wodonga lwekhethini le-aluminium
Ukuvuvuka komthungo onamathelayo wodonga lwekhethini lengilazi
Ukuvuvuka komthungo wokunamathela wokwakhiwa komnyango nefasitela
2. Kwenzeka kanjani ukuqubuka?
Isizathu esiyisisekelo salesi simo "sokukhukhumala" ukuthi ingcina idlula ekushintsheni okukhulu nasekuguqukeni ngesikhathi senqubo yokulungisa, okuwumphumela womphumela ophelele wezinto ezifana nesivinini sokulungisa se-sealant, usayizi we-adhesive joint, izinto zokwakha kanye nosayizi wephaneli, indawo yokwakha, kanye nekhwalithi yokwakha. Ukuze kuxazululwe inkinga yokukhukhumala emithungweni yokunamathela, kubalulekile ukususa izinto ezingathandeki ezibangela ukukhukhumala. Kuphrojekthi ethile, ngokuvamile kunzima ukulawula ukushisa kwemvelo kanye nomswakama ngesandla, futhi izinto zephaneli kanye nosayizi, kanye nomklamo we-adhesive joint, nakho sekunqunyiwe. Ngakho-ke, ukulawula kungatholakala kuphela ngohlobo lwe-sealant (umthamo wokunyakazisa onamathelayo kanye nesivinini sokulungisa) kanye nokushintsha komehluko wokushisa kwemvelo.
A. Amandla okunyakaza kwe-sealant:
Kuphrojekthi ethile yodonga lwekhethini, ngenxa yamanani aqinile osayizi wepuleti, i-coefficient yokukhulisa okuqondile kwezinto zephaneli, kanye nokushintsha kwezinga lokushisa lonyaka kodonga lwekhethini, amandla amancane okunyakaza kwe-sealant angabalwa ngokusekelwe kububanzi bejoyinti elibekiwe. Uma ijoyinti lincane, i-sealant enekhono eliphakeme lokunyakaza idinga ukukhethwa ukuze ihlangabezane nezidingo zokuguqulwa kwamalunga.
B. Isivinini sokupholisa se-sealant:
Njengamanje, i-sealant esetshenziselwa ukuhlanganisa izinto zokwakha eShayina ikakhulukazi iyi-silicone adhesive engathathi hlangothi, engahlukaniswa ngohlobo lwe-oxime curing kanye nohlobo lwe-alkoxy curing ngokwesigaba sokuhlanganisa izinto. Ijubane lokuhlanganisa izinto le-oxime silicone adhesive lishesha kunele-alkoxy silicone adhesive. Ezindaweni zokwakha ezinamazinga okushisa aphansi (4-10 ℃), umehluko omkhulu wokushisa (≥ 15 ℃), kanye nomswakama ophansi (<50%), ukusetshenziswa kwe-oxime silicone adhesive kungaxazulula izinkinga eziningi "zokuvuvukala". Ijubane lokuhlanganisa izinto le-sealant lishesha, kulapho ikhono layo lokubekezelela ukuguquguquka kwamalunga liqina khona ngesikhathi sokuhlanganisa izinto; Uma ijubane lokuhlanganisa izinto lihamba kancane futhi ukunyakaza nokuguquguquka kwamalunga kukhulu, kuba lula ukuthi i-adhesive adhesive iqhume.
C. Izinga lokushisa kanye nomswakama wendawo yokwakha:
I-silicone sealant yokwakhiwa kwengxenye eyodwa engangenisi manzi ingaphola kuphela ngokuphendula ngomswakama emoyeni, ngakho-ke izinga lokushisa nomswakama wendawo yokwakha kunomthelela othile esivinini sayo sokupholisa. Ngokuvamile, izinga lokushisa eliphezulu nomswakama kuholela ekusabeleni okusheshayo nesivinini sokupholisa; Izinga lokushisa eliphansi nomswakama kuholela esivinini sokusabela sokupholisa esihamba kancane, okwenza kube lula ukuthi umthungo wokunamathela uqhume. Izimo zokwakha ezinconywayo ezinhle yilezi: izinga lokushisa eliphakathi kuka-15 ℃ no-40 ℃, umswakama ohlobene>50% RH, kanye neglue ayikwazi ukusetshenziswa ngesikhathi sezulu esinemvula noma esineqhwa. Ngokusekelwe kokuhlangenwe nakho, lapho umswakama ohlobene womoya uphansi (umswakama ujikeleza cishe ku-30% RH isikhathi eside), noma kukhona umehluko omkhulu wokushisa phakathi kwasekuseni nakusihlwa, izinga lokushisa emini lingaba cishe ku-20 ℃ (uma isimo sezulu sinelanga, izinga lokushisa lamaphaneli e-aluminium abekwe elangeni lingafinyelela ku-60-70 ℃), kodwa izinga lokushisa ebusuku lingama-degree Celsius ambalwa kuphela, ngakho-ke ukuqubuka kwamalunga okunamathela odongeni lwekhethini kuvame kakhulu. Ikakhulukazi ezindongeni zekhethini le-aluminium ezinama-coefficients aphezulu okukhulisa izinto kanye nokuguquguquka okukhulu kokushisa.
D. Izinto zephaneli:
Ipuleti le-aluminium liyizinto ezivamile zephaneli ezine-coefficient ephezulu yokwanda kokushisa, futhi i-coefficient yayo yokwanda okuqondile iphindwe ka-2-3 kunengilazi. Ngakho-ke, amapuleti e-aluminium anobukhulu obufanayo anokukhula okukhulu kokushisa kanye nokuguquguquka kokuncipha kunengilazi, futhi athambekele kakhulu ekunyakazeni okukhulu kokushisa kanye nokuqhuma ngenxa yezinguquko zomehluko wokushisa phakathi kwemini nobusuku. Uma usayizi wepuleti le-aluminium ukhulu, kulapho ukuguquguquka okukhulu okubangelwa ukushintsha komehluko wokushisa. Yingakho futhi i-sealant efanayo ingase ibhekane nokuqhuma lapho isetshenziswa ezindaweni ezithile zokwakha, kuyilapho kwezinye izindawo zokwakha, ukuqhuma kungenzeki. Esinye isizathu salokhu kungaba umehluko ngobukhulu bamaphaneli odonga lwekhethini phakathi kwezindawo ezimbili zokwakha.
3. Ungakuvimbela kanjani ukuvuvuka kwe-sealant?
A. Khetha i-sealant enesivinini sokupholisa esisheshayo. Isivinini sokupholisa sinqunywa kakhulu yizici zefomula ye-sealant uqobo, ngaphezu kwezici zemvelo. Kunconywa ukusebenzisa imikhiqizo yenkampani yethu "yokomisa ngokushesha ebusika" noma ukulungisa isivinini sokupholisa ngokwehlukana endaweni ethile yokusetshenziswa ukuze kuncishiswe amathuba okukhukhumala.
B. Ukukhetha isikhathi sokwakha: Uma ukuguquguquka okuhlobene (ukuguquguquka okuphelele/ububanzi bamalunga) kwelunga kukhulu kakhulu ngenxa yomswakama ophansi, umehluko wokushisa, usayizi wamalunga, njll., futhi kungakhathaliseki ukuthi kusetshenziswa yiphi i-sealant, isavuvukala, yini okufanele yenziwe?
1) Ukwakhiwa kufanele kwenziwe ngokushesha okukhulu ezinsukwini ezinamafu, njengoba umehluko wokushisa phakathi kwemini nobusuku mncane futhi ukuguquguquka kwe-glue glue kuncane, okwenza kube lula ukuvuvukala.
2) Thatha izinyathelo ezifanele zokufiphaza, njengokusebenzisa amanethi othuli ukumboza izisekelo, ukuze amaphaneli angavezwa ngqo elangeni, unciphise izinga lokushisa lamaphaneli, futhi unciphise ukuguquka kwamalunga okubangelwa ukwehluka kwezinga lokushisa.
3) Khetha isikhathi esifanele sokusebenzisa i-sealant.
C. Ukusetshenziswa kwezinto ezisekelayo ezinezimbobo kwenza kube lula ukujikeleza komoya futhi kusheshise isivinini sokuqina kwe-sealant. (Ngezinye izikhathi, ngenxa yokuthi induku ye-foam ibanzi kakhulu, induku ye-foam iyacindezelwa futhi iguquguquke ngesikhathi sokwakhiwa, okuzoholela ekuvuvukeni).
D. Faka ungqimba lwesibili lwesinamathelisi esihlanganisini. Okokuqala, faka isinamathelisi esigoqekile, ulinde siqine futhi sibe nokunwebeka izinsuku ezingu-2-3, bese ufaka ungqimba lwesinamathelisi ebusweni baso. Le ndlela ingaqinisekisa ukushelela kanye nobuhle besinamathelisi esingaphezulu.
Ngamafuphi, isimo "sokukhukhumala" ngemva kokwakhiwa kwe-sealant akuyona inkinga yekhwalithi ye-sealant, kodwa inhlanganisela yezici ezahlukene ezingathandeki. Ukukhetha kahle kwe-sealant kanye nezinyathelo zokuvimbela ukwakhiwa eziphumelelayo kunganciphisa kakhulu amathuba okuba "kukhukhumala" kwenzeke.
[1] 欧利雅. (2023).小欧老师讲解密封胶“起鼓”原因及对应措施.
Isitatimende: ezinye izithombe zivela kwi-inthanethi.
Isikhathi sokuthunyelwe: Jan-31-2024
