1. Ukubuka konke kwengilazi yokuvikela umswakama
Ingilazi efakwe ugesi uhlobo lwengilazi eyonga amandla esetshenziswa kabanzi ezakhiweni zamahhovisi ezentengiselwano, ezitolo ezinkulu, ezakhiweni zokuhlala eziphakeme nakwezinye izakhiwo. Inezakhiwo ezinhle kakhulu zokuvikela ukushisa kanye nokuvikela umsindo futhi iyinhle futhi iyasebenza. Ingilazi efakwe ugesi yakhiwe yizingcezu ezimbili (noma ngaphezulu) zengilazi eziboshwe ngezikhala. Kunezinhlobo ezimbili eziyinhloko zokuvala: indlela ye-strip kanye nendlela yokubopha iglu. Njengamanje, ukuvala okuphindwe kabili endleleni yokubopha iglue kuyisakhiwo sokuvala esivame ukusetshenziswa kakhulu. Isakhiwo sinjengoba kuboniswe kuMfanekiso 1: izingcezu ezimbili zengilazi zihlukaniswa yizikhala, kanti i-butyl sealant isetshenziselwa ukuvala i-spacer nengilazi ngaphambili.Gcwalisa ingaphakathi le-spacer ngesihlungo sama-molecule, bese uvala igebe eliphakathi komphetho wengilazi nengaphandle le-spacer nge-sealant yesibili.
Umsebenzi wesivalo sokuqala ukuvimbela umhwamuko wamanzi noma igesi engasebenzi ukuthi ingene futhi iphume emgodini. Isivalo se-butyl sivame ukusetshenziswa ngoba izinga lokudluliswa komhwamuko wamanzi kanye nezinga lokudluliswa kwegesi engasebenzi le-butyl sealant liphansi kakhulu. Kodwa-ke, isivalo se-butyl ngokwaso sinamandla aphansi okubopha kanye nokuqina okuphansi, ngakho-ke isakhiwo sonke kumele silungiswe ngesivalo sesibili ukuze kuhlanganiswe amapuleti engilazi kanye nama-spacer ndawonye. Lapho ingilazi yokuvikela ingaphansi komthwalo, ungqimba lwesivalo lungagcina umphumela omuhle wokuvala. Ngesikhathi esifanayo, isakhiwo sonke asithinteki.
Umfanekiso 1
2. Izinhlobo zezivikelo zesibili zokuvikela ingilazi
Kunezinhlobo ezintathu eziyinhloko zama-sealant esibili okuvikela ingilazi: i-polysulfide, i-polyurethane kanye ne-silicone. Ithebula 1 libala ezinye zezici zezinhlobo ezintathu zama-sealant ngemva kokuba sezilapheke ngokuphelele.
Ithebula 1 Ukuqhathaniswa kwezimpawu zokusebenza kwezinhlobo ezintathu ze-sealant yesibili yengilazi yokuvikela umswakama
Inzuzo ye-polysulfide sealant ukuthi ine-water vapor ephansi kanye ne-argon gas transmittance ekushiseni kwegumbi; i-hair yayo ukuthi ine-high water muncreating rate.
Izinga lokubuyisa i-modulus kanye ne-elastic liyancipha kakhulu njengoba izinga lokushisa likhuphuka, futhi ukudluliselwa komhwamuko wamanzi nakho kukhulu kakhulu lapho izinga lokushisa liphezulu. Ngaphezu kwalokho, ngenxa yokumelana kwayo nokuguga kwe-UV okungekuhle, ukushiswa kwemisebe ye-UV isikhathi eside kuzobangela ukususwa kwe-gum okunganamatheli.
Inzuzo ye-polyurethane sealant ukuthi ukudluliselwa kwayo komhwamuko wamanzi kanye negesi ye-argon kuphansi, kanti ukudluliselwa komhwamuko wamanzi nakho kuphansi uma izinga lokushisa liphezulu; ukungabi nalutho kwayo ukuthi ayimelani nokuguga kwe-UV.
I-silicone sealant ibhekisela ku-sealant ene-polysiloxane njengezinto eziyinhloko zokusetshenziswa, ebizwa nangokuthi i-silicone sealant yesistimu yokukhiqiza yezolimo. Uchungechunge lwe-polymer lwe-silicone sealant lwakhiwe kakhulu yi-Si-O-Si, exhunywe ndawonye ukuze yakhe isakhiwo sesithambo se-Si-O-Si esifana nenethiwekhi ngesikhathi senqubo yokwelapha. Amandla e-Si—O bond (444KJ/mol) aphezulu kakhulu, hhayi nje kuphela amakhulu kunamanye amandla e-polymer bond, kodwa futhi makhulu kunamandla e-ultraviolet (399KJ/mol). Isakhiwo sama-molecule se-silicone sealant senza i-silicone sealant ibe nokumelana okuhle kakhulu nokushisa okuphezulu nokuphansi, ukumelana nesimo sezulu kanye nokumelana nokuguga kwe-UV, kanye nokumuncwa kwamanzi okuphansi. Ububi be-silicone sealant uma isetshenziswa engilazini yokuvikela umswakama ukungabi khona kwegesi okuphezulu.
3. Ukukhetha okulungile kwe-sealant yesibili yokuvikela ingilazi
Uma ubuso bokubopha beglue ye-polysulfide, iglue ye-polyurethane kanye nengilazi kuvezwa elangeni isikhathi eside, kuzokwenzeka i-degumming, okuzobangela ukuthi ingxenye yangaphandle yengilazi yokuvikela yodonga lwekhethini lengilazi olufihliwe iwe noma ukuvalwa kwengilazi yokuvikela yodonga lwekhethini lengilazi olusekelwe iphuzu kuhluleke.Ngakho-ke, isivali sesibili sokuvikela ingilazi yodonga lwekhethini olufihliwe kanye nezindonga zekhethini olufihliwe kumele sisebenzise isivali sesakhiwo se-silicone, futhi usayizi wesixhumi kumele ubalwe ngokusho kwe-JGJ102 "Imininingwane Yobuchwepheshe Bobunjiniyela Bekhethini Lengilazi";
Isivali sesibili sengilazi yokuvikela umswakama yezindonga zekhethini lengilazi ezisekelwe endaweni eqondile kumele sisebenzise isivali sesakhiwo se-silicone; ukuze kusetshenziswe isivali sesibili sengilazi yokuvikela umswakama yezindonga zekhethini elikhulu elivulekile, kunconywa ukusebenzisa isivali sesakhiwo se-silicone sengilazi yokuvikela umswakama.Isivali sesibili sengilazi evalekile yeminyango, amafasitela kanye nezindonga zamakhethini ezivamile ezivulekile singaba isivali se-silicone sealant sengilazi esivalekile, isivali se-polysulfide noma isivali se-polyurethane.
Ngokusekelwe kulokhu okungenhla, abasebenzisi kufanele bakhethe umkhiqizo wesibili ofanele wokuvala ingilazi ngokuvikela ingilazi ngokuya ngokusetshenziswa okukhethekile kwengilazi yokuvikela ingilazi. Ngesisekelo sokuthi ikhwalithi yesivalo iyafaneleka, inqobo nje uma ikhethiwe futhi isetshenziswa kahle, ingilazi yokuvikela ingilazi ingakhiqizwa impilo yesevisi ehlangabezana nezidingo zokusetshenziswa. Kodwa uma ikhethwe futhi isetshenziswa ngendlela engafanele, ngisho nesivalo esihle kakhulu singakhiqiza ingilazi yokuvikela ingilazi yekhwalithi ephansi.
Lapho sikhetha i-sealant yesibili, ikakhulukazi i-silicone structural sealant, kumelwe futhi sicabangele ukuthi i-silicone sealant kumele ihlangabezane nezidingo zokusebenza zengilazi yokuvikela, ukuhambisana ne-primary sealing butyl sealant, kanye nokusebenza kwe-silicone sealant kufanele kuhlangabezane nezidingo zezindinganiso ezifanele. Ngesikhathi esifanayo, ukuzinza kwekhwalithi yemikhiqizo ye-silicone sealant, ukuthandwa kwabakhiqizi be-silicone sealant, kanye namakhono esevisi yobuchwepheshe yomenzi kanye namazinga kuyo yonke inqubo yokuthengisa ngaphambi kokuthengisa, ukuthengisa, kanye nokuthengisa ngemva kokuthengisa nakho kuyizinto ezibalulekile abasebenzisi okudingeka bazicabangele.
I-insulating glass sealant ibiza ingxenye ephansi yezindleko zokukhiqiza ingilazi ezivikelayo, kodwa inomthelela omkhulu kwikhwalithi kanye nokuphila kwenkonzo yengilazi ezivikelayo. I-insulating glass structure sealant ihlobene ngqo nezinkinga zokuphepha kodonga lwekhethini. Njengamanje, njengoba umncintiswano emakethe ye-sealant uba mkhulu kakhulu, abanye abakhiqizi be-sealant abanqikazi ukudela ukusebenza komkhiqizo kanye nekhwalithi lapho benciphisa izindleko ukuze bawine amakhasimende ngamanani aphansi. Inani elikhulu lemikhiqizo ye-insulating glass sealant evikelayo esezingeni eliphansi nentengo ephansi iye yavela emakethe. Uma umsebenzisi ekhetha ngokunganaki, ukuze onge izindleko ezincane ze-sealant, ingabangela izingozi zokuphepha noma iholele ngisho nasezingozini zekhwalithi, okungase kubangele ukulahlekelwa okukhulu.
ISiway ikukhuthaza ukuthi ukhethe umkhiqizo ofanele kanye nomkhiqizo omuhle; ngesikhathi esifanayo, sizokwethula kuwe izingozi ezahlukahlukene ezibangelwa ukusebenzisa i-glass insulating sealant esezingeni eliphansi kanye nokusetshenziswa okungafanele esikhathini esizayo.
Isikhathi sokuthunyelwe: Disemba 13-2023