A. Umswakama ophansi wemvelo
Umswakama ophansi endaweni ezungezile ubangela ukuphola kancane kwe-sealant. Isibonelo, entwasahlobo nasekwindla enyakatho yezwe lakithi, umswakama womoya uphansi, ngezinye izikhathi uhlala cishe ku-30% RH isikhathi eside.
Isixazululo: Zama ukukhetha ukwakhiwa kwesizini ngezinkinga zokushisa nomswakama.
B. Umehluko omkhulu wokushisa kwemvelo (umehluko omkhulu wokushisa ngosuku olufanayo noma ezinsukwini ezimbili eziseduze)
Ngesikhathi senqubo yokwakha, iyunithi yokwakha inethemba lokuthi isivinini sokulungisa se-sealant kufanele sisheshe ngangokunokwenzeka, ukuze kuncishiswe amathuba okuthintwa yizici zangaphandle. Kodwa-ke, kunenqubo yokulungisa i-sealant, evame ukuthatha izinsuku eziningana. Ngakho-ke, ukuze kusheshiswe isivinini sokulungisa se-glue, abasebenzi bokwakha bavame ukwenza umsebenzi wokwakha ngaphansi kwezimo ezifanele zokwakha. Ngokuvamile, isimo sezulu (ikakhulukazi izinga lokushisa kanye nomswakama) sikhethwa ukwakhiwa ekushiseni okuzinzile futhi okufanele ukwakhiwa (okugcinwe ekushiseni okuthile kanye nomswakama isikhathi eside).
Isixazululo: Zama ukukhetha isikhathi sonyaka nesikhathi esinomehluko omncane wokushisa wokwakha, njengokwakhiwa okunamafu. Ngaphezu kwalokho, isikhathi sokupholisa se-sealant engamelani nesimo sezulu se-silicone sidinga ukuba sifushane, okungaqinisekisa nokuthi i-sealant ngeke isuswe ngamanye amandla angaphandle ngesikhathi senqubo yokupholisa ukuze iglue iqhume.
C. Izinto zephaneli, usayizi kanye nesimo
Ama-substrate ahlanganiswe yi-sealant ngokuvamile ayingilazi ne-aluminium. Lawa ma-substrate azokhula futhi anciphe ngokushisa njengoba izinga lokushisa lishintsha, okuzokwenza ukuthi inhlaka ibekwe ekubandeni futhi icindezelwe ngokushisa.
I-coefficient yokwanda okuqondile ibizwa nangokuthi i-coefficient yokwanda okuqondile. Lapho izinga lokushisa lento eqinile lishintsha nge-1 degree Celsius, isilinganiso sokushintsha kobude bayo kuya kubude bayo ekushiseni kokuqala (hhayi ngempela i-0°C) sibizwa ngokuthi “i-coefficient yokwanda okuqondile”. Iyunithi ingu-1/℃, kanti uphawu luyi-αt. Incazelo yayo ingu-αt=(Lt-L0)/L0∆t, okungukuthi, i-Lt=L0 (1+αt∆t), lapho i-L0 ingusayizi wokuqala wezinto, i-Lt ingusayizi wezinto ku-t ℃, kanti i-∆t ingumehluko wezinga lokushisa. Njengoba kuboniswe etafuleni elingenhla, lapho usayizi wepuleti le-aluminium ukhulu, kusobala kakhulu ukuthi i-glue iqhuma esihlanganisini seglue iyabonakala. Ukuguquguquka kwe-joint yepuleti le-aluminium elinomumo okhethekile kukhulu kunokwepuleti le-aluminium eliyisicaba.
Isixazululo: Khetha ipuleti le-aluminium kanye nengilazi ene-coefficient encane yokwandisa eqondile, bese unaka ngokukhethekile indlela ende (uhlangothi olufushane) lweshidi le-aluminium. Ukushisa okuphumelelayo noma ukuvikela ipuleti le-aluminium, njengokumboza ipuleti le-aluminium ngefilimu yomthunzi welanga. Uhlelo "losayizi wesibili" lungasetshenziswa futhi ekwakheni.
D. Ithonya lamandla angaphandle
Izakhiwo eziphakeme zingase zithonywe yimvula enkulu. Uma umoya unamandla, kuzobangela ukuthi inhlaka egubhayo ikhukhumale. Amadolobha amaningi ezweni lethu asendaweni yemvula enkulu, futhi izakhiwo zodonga lwekhethini zizonyakaza kancane ngenxa yokucindezela komoya wangaphandle, okuholela ekushintsheni kobubanzi bamajoyinti. Uma inhlaka isetshenziswa lapho umoya unamandla, i-sealant izokhukhuma ngenxa yokugudluka kwepuleti ngaphambi kokuba ilapheke ngokuphelele.
Isixazululo: Ngaphambi kokufaka iglue, indawo yeshidi le-aluminiyamu kufanele ilungiswe ngangokunokwenzeka. Ngesikhathi esifanayo, ezinye izindlela zingasetshenziswa futhi ukwenza buthaka umphumela wamandla angaphandle eshidi le-aluminiyamu. Akuvunyelwe ukufaka iglue ngaphansi komoya omkhulu.
E. ukwakhiwa okungalungile
1. Inhlanganisela yeglue kanye nezinto eziyisisekelo zinomswakama ophezulu kanye nemvula;
2. Induku yefoam iklwejwa ngengozi ngesikhathi sokwakhiwa/ukujula kobuso benduku yefoam kuhlukile;
3. I-foam strip/i-tape enezinhlangothi ezimbili ayizange icwebezele ngaphambi kokufakwa usayizi, futhi yaqhuma kancane ngemva kokufakwa usayizi. Yabonisa into eqhumayo ngemva kokufakwa usayizi.
4. Induku yefoam ayikhethwanga kahle, futhi ifoam ayikwazi ukuba yinduku yefoam enobukhulu obuphansi, okumele ihambisane nemininingwane efanele;
5. Ubukhulu bosayizi abwanele, buncane kakhulu, noma ubukhulu bobukhulu abulingani;
6. Ngemva kokusetshenziswa kwe-substrate yokuhlanganisa, i-glue ayiqini futhi ayinyakaziswa ngokuphelele, okubangela ukugudluka phakathi kwe-substrate bese kwakheka ama-blister.
7. Iglue esuselwe ku-alcohol izokhukhumala uma isetshenziswa elangeni (lapho izinga lokushisa lobuso be-substrate liphezulu).
Isixazululo: Ngaphambi kokwakha, qiniseka ukuthi zonke izinhlobo ze-substrate zisesimweni sokwakha sezinto ezivimbela isimo sezulu, futhi izinga lokushisa kanye nomswakama endaweni nakho kusebangeni elifanele (izimo zokwakha ezinconywayo).
Isikhathi sokuthunyelwe: Ephreli-07-2022