Ekwindla nasebusika, njengoko ukufuma okunxulumene emoyeni kuncipha kwaye umahluko wobushushu phakathi kwasekuseni nangokuhlwa usanda, umphezulu wezinto ezincamathelayo kwiindonga zeglasi yomkhusane kunye neendonga zepaneli ye-aluminium ziya kuphuma kwaye zikhubazeke kwiindawo ezahlukeneyo zokwakha. . Kwanezinye iiprojekthi zeengcango kunye neefestile zinokufumana ukuguqulwa komphezulu kunye nokunyuka kwamalungu okunamathela kwangolo suku okanye kwiintsuku ezimbalwa zokutywinwa. Siyibiza ngokuba yi-phenomenon ye-sealant bulging.
1. Yintoni ukugquma kwe-sealant?
Inkqubo yokuphilisa yecandelo elinye lolwakhiwo lwe-silicone sealant luxhomekeke ekusabeleni ngokufuma emoyeni. Xa isantya sokunyanga se-sealant sicotha, ixesha elifunekayo kubunzulu obaneleyo bokuphilisa umphezulu liya kuba lide. Xa umphezulu we-sealant ungakaqiniswa ubunzulu obaneleyo, ukuba ububanzi be-adhesive seam buyatshintsha kakhulu (ngokuqhelekileyo ngenxa yokwandiswa kwe-thermal kunye nokunciphisa ipaneli), umphezulu we-adhesive seam uya kuchaphazeleka kwaye ungalingani. Ngamanye amaxesha i-bulge embindini we-adhesive seam yonke, ngamanye amaxesha i-bulge eqhubekayo, kwaye ngamanye amaxesha i-deformation ejijekileyo. Emva kokunyangwa kokugqibela, le mithungo ingalinganiyo yokuncamathelisa umphezulu yonke iqinile ngaphakathi (hayi amaqamza angenanto), ngokudibeneyo ebizwa ngokuba "yi-bulging".
Ukugquma komthungo oncamathelayo we-aluminiyam yodonga lomkhusane
Ukugquma komthungo oncamathelayo wodonga lomkhusane weglasi
I-bulging of adhesive seam yomnyango kunye nokwakhiwa kwefestile
2. Kwenzeka njani iBulging?
Isizathu esisisiseko sento ethi "bulging" kukuba i-adhesive idlula ngokuphawulekayo kunye nokuguqulwa ngexesha lenkqubo yokunyanga, okusisiphumo sesiphumo esibanzi sezinto ezifana nesantya sokunyanga i-sealant, ubungakanani be-adhesive joint. imathiriyeli kunye nobukhulu bephaneli, indawo yokwakha, kunye nomgangatho wokwakha. Ukucombulula ingxaki ye-bulging kwi-adhesive seams, kuyimfuneko ukuphelisa izinto ezingathandekiyo ezibangela ukuqhuma. Kwiprojekthi ethile, ngokuqhelekileyo kunzima ukulawula ubushushu bokusingqongileyo kunye nokufuma, kunye nezinto zepaneli kunye nobukhulu, kunye nokuyilwa kokudibanisa okunamathelayo, kuye kwagqitywa. Ke ngoko, ulawulo lunokufezekiswa kuphela kuhlobo lwe-sealant (i-adhesive displacement capacity kunye nesantya sokuphilisa) kunye notshintsho lobushushu bendalo esingqongileyo.
A. Intshukumo yesakhono sealant:
Kwiprojekthi ethile yodonga lwamakhethini, ngenxa yamaxabiso amiselweyo obungakanani bepleyiti, izinto zepaneli zokwandiswa komgca womlinganiso, kunye notshintsho lonyaka lobushushu bodonga lomkhusane, ubuncinci bokuhamba kwe-sealant bunokubalwa ngokusekelwe kwiseti yobubanzi obudibeneyo. Xa umdibaniso uncinci, i-sealant enekhono eliphezulu lokunyakaza kufuneka ikhethwe ukuhlangabezana neemfuno ze-deformation edibeneyo.
B. Isantya sokunyanga sealant:
Okwangoku, i-sealant esetyenziselwa ukwakhiwa kwamalungu e-China i-adhesive ye-silicone engathathi hlangothi, enokuthi yohlulwe ibe yi-oxime yokunyanga kunye nohlobo lokunyanga lwe-alkoxy ngokodidi lokunyanga. Isantya sokunyanga se-adhesive ye-silicone ye-oxime ikhawuleza kune-adhesive alkoxy silicone. Kwiindawo zokwakha ezinokushisa okuphantsi (4-10 ℃), ukuhluka okukhulu kweqondo lokushisa (≥ 15 ℃), kunye nomswakama ophantsi ohambelanayo (<50%), ukusetyenziswa kwe-adhesive ye-silicone ye-oxime kunokusombulula uninzi lweengxaki ze-"bulging". Ukukhawuleza kwesantya sokunyanga se-sealant, komelela amandla ayo okumelana nokuguqulwa kwamalungu ngexesha lokunyanga; Isantya esicothayo sokunyanga kunye nokuhamba okukhulu kunye nokuguqulwa komdibaniso, kulula ukuba i-adhesive joint iqhume.
C. Iqondo lobushushu kunye nokufuma kokusingqongileyo kwendawo yokwakha:
Icandelo elinye lolwakhiwo lwe-silicone sealant lunokunyanga kuphela ngokusabela ngokufuma emoyeni, ngoko ke ubushushu kunye nokufuma kwendalo yolwakhiwo kunempembelelo ethile kwisantya sokunyanga kwayo. Ngokuqhelekileyo, ubushushu obuphezulu kunye nokufuma kubangela ukusabela ngokukhawuleza kunye nesantya sokunyanga; Ubushushu obuphantsi kunye nokufuma kukhokelela kwisantya sokuphendula esicothayo, nto leyo eyenza kube lula ukuba umthungo wokuncamathelisa ube neqhuma. Ezona meko zokwakha zicetyiswayo zezi: ubushushu obuphakathi kwe-15 ℃ kunye ne-40 ℃, ukufuma kwe-50% RH, kunye neglue ayinakugalelwa ngexesha lemozulu yemvula okanye ikhephu. Ngokusekwe kumava, xa ukufuma komoya kusezantsi (ukufuma kundanda malunga ne-30% RH ixesha elide), okanye kukho umahluko omkhulu wobushushu phakathi kwasekuseni nangokuhlwa, iqondo lobushushu emini linokuba malunga ne-20 ℃ (ukuba Imozulu inelanga, iqondo lobushushu leepaneli ze-aluminiyam ezibekwe elangeni linokufikelela kwi-60-70 ℃), kodwa iqondo lobushushu ebusuku liziidigrisi ezimbalwa kuphela, ngoko ke ukugquma kweendonga zokuncamathelisa komkhusane. ixhaphake kakhulu. Ngokukodwa kwiindonga ze-aluminiyam zamakhethini kunye ne-coefficients yokwandisa i-linear ephezulu kunye ne-deformation ebalulekileyo yokushisa.
D. Izixhobo zephaneli:
Ipleyiti ye-aluminium yinto eqhelekileyo yepaneli kunye ne-coefficient ephezulu yokwandiswa kwe-thermal, kwaye i-coefficient yayo yokwandisa i-linear yi-2-3 amaxesha eglasi. Ke ngoko, iipleyiti ze-aluminiyam ezinobukhulu obufanayo zinokwandiswa okukhulu kwe-thermal kunye ne-contraction deformation kuneglasi, kwaye zithandeka ngakumbi kwintshukumo enkulu ye-thermal kunye nokuqhuma ngenxa yokutshintsha kweqondo lokushisa phakathi kwemini nobusuku. Ubukhulu bepleyiti ye-aluminiyam, inkulu ukuguqulwa okubangelwa utshintsho lwamaqondo obushushu. Kungeso sizathu le nto isitywini esinye sinokuba namaqhuqhuva xa sisetyenziswa kwiziza ezithile zokwakha, ngelixa kwezinye iindawo zokwakha, akwenzeki. Esinye isizathu salokhu sinokuthi sihluke kubukhulu beepaneli zodonga lwamakhethini phakathi kweendawo ezimbini zokwakha.
3. Ukuthintela njani i-sealant ukuba ingagquma?
A. Khetha into yokutywina enesantya esikhawulezayo sokunyanga. Isantya sokunyanga sinqunywe ngokukodwa kwiimpawu zefomula ye-sealant ngokwayo, ngaphezu kwezinto ezisingqongileyo. Kuyacetyiswa ukuba usebenzise iimveliso zenkampani yethu "zokomisa ngokukhawuleza ebusika" okanye uhlengahlengise isantya sokunyanga ngokwahlukeneyo kwindawo ethile yokusetyenziswa ukunciphisa ukubakho kokuqhuma.
B. Ukukhethwa kwexesha lokwakha: Ukuba i-deformation ehambelanayo (i-deformation epheleleyo / ububanzi obudibeneyo) yokudibanisa bukhulu kakhulu ngenxa yomswakama ophantsi, ukuhluka kweqondo lokushisa, ubukhulu obudibeneyo, njl. kufuneka kwenziwe?
I-1) Ukwakhiwa kufuneka kuqhutywe ngokukhawuleza kwiintsuku ezinamafu, njengoko umehluko weqondo lokushisa phakathi kwemini nobusuku umncinci kwaye ukuguqulwa kwe-adhesive joint kuncinci, okwenza ukuba kungabi lula ukukhupha.
I-2) Thatha amanyathelo afanelekileyo e-shading, njengokusebenzisa iminatha yothuli ukugubungela i-scaffolding, ukwenzela ukuba iipaneli zingabonakali ngokuthe ngqo ekukhanyeni kwelanga, ukunciphisa ubushushu beepaneli, kunye nokunciphisa ukuguqulwa okudibeneyo okubangelwa ukuhluka kweqondo lokushisa.
3) Khetha ixesha elifanelekileyo lokufaka i-sealant.
C. Ukusetyenziswa kwezinto ezixhasayo ezine-perforated kunceda ukujikeleza komoya kunye nokukhawulezisa isantya sokunyanga se-sealant. (Ngamanye amaxesha, ngenxa yokuba intonga ye-foam ibanzi kakhulu, intonga ye-foam icinezelwe kwaye ikhubazeke ngexesha lokwakhiwa, okuya kukhokelela kwi-bulge).
D. Faka i-second layer of adhesive kwi-joint. Okokuqala, sebenzisa i-concave adhesive joint, linda ukuba iqiniswe kwaye ibe yi-elastic iintsuku ezingama-2-3, emva koko sebenzisa uluhlu lwe-sealant ebusweni bayo. Le ndlela inokuqinisekisa ukugudiswa kunye ne-aesthetics ye-adhesive joint joint.
Isishwankathelo, into ethi "bulging" emva kokwakhiwa kwe-sealant ayikho ingxaki yomgangatho we-sealant, kodwa indibaniselwano yezinto ezahlukeneyo ezingathandekiyo. Ukukhethwa okuchanekileyo kwe-sealant kunye neendlela ezisebenzayo zokuthintela ukwakhiwa kunokunciphisa kakhulu amathuba okuba "ubulging" ukwenzeka.
[1] 欧利雅. (2023).小欧老师讲解密封胶“起鼓”原因及对应措施.
Ingxelo: eminye imifanekiso ivela kwi-Intanethi.
Ixesha lokuposa: Jan-31-2024
