Nkuko twese tubizi, inyubako muri rusange zitezweho kugira ubuzima bwo gukora nibura imyaka 50. Kubwibyo, ibikoresho bikoreshwa bigomba no kugira ubuzima bwo gukora igihe kirekire. Isefa ya silikoni yakoreshejwe cyane mu bijyanye no kurinda inyubako amazi no kuzifunga bitewe nuko irwanya ubushyuhe bwinshi n'ubukonje, idasaza cyane, kandi ifite ubushobozi bwo gufatana neza. Ariko, nyuma y'igihe runaka nyuma yo kubaka, ihinduka ry'ibara rya silikoni ryabaye ikibazo gikunze kugaragara, bigatuma inyubako zisigara "zirimo imigozi" itunguranye.
Kuki kole ya silicone ihindura ibara nyuma yo kuyikoresha?
Hari impamvu nyinshi zituma ibara rya silicone tunnel sealant cyangwa kole y'ikirahure rihinduka igice cyangwa ryose, ahanini muri ibi bikurikira:
1. Kudahuza kw'ibikoresho bitandukanye bifunga Ibifunga bikozwe muri aside, ibifunga bikozwe muri alcool, n'ibifunga bikozwe muri oxime ntibishobora gukoreshwa hamwe, kuko bishobora kugira ingaruka ku bindi bigatera ibara. Ibifunga bikozwe mu kirahuri bishobora gutuma ibifunga bikozwe muri oxime bihinduka umuhondo, kandi gukoresha ibifunga bikozwe muri oxime na alcool hamwe nabyo bishobora gutera umuhondo.
Molekile zirekurwa mu gihe cyo gushonga kw'ibice by'ibumba bya oxime-type, -C=N-OH, zishobora gukorana na aside kugira ngo zikore amatsinda ya amino, ahita ahinduka oxidized na ogisijeni mu kirere kugira ngo akore ibintu bifite ibara, bigatuma ibice by'ibumba bihinduka ibara.
2. Gukora ku rubura n'ibindi bikoresho
Ibifunga bya silikoni bishobora guhinduka umuhondo iyo bihuye n'ubwoko bumwe na bumwe bwa rubber, nka rubber karemano, rubber ya neoprene, na rubber ya EPDM. Izi rubber zikoreshwa cyane mu nkuta z'amadirishya n'amadirishya/inzugi nk'imirongo ya rubber, gaskets, n'ibindi bice. Iri hinduka ry'ibara rirangwa no kutamera neza, aho ibice gusa bihuye n'urubber bihinduka umuhondo mu gihe ibindi bice bitagize icyo bihindura.
3. Guhindura ibara ry'ibifunga bishobora guterwa no kunanura cyane
Iki kintu gikunze kwitwa ko giterwa no gutakaza ibara ry'icyuma gifunga, bishobora guterwa n'ibintu bitatu bikunze kugaragara.
1) Ifu ikoreshwa yarenze ubushobozi bwayo bwo kwimura kandi ingingo yararambuye cyane.
2) Ubunini bw'icyuma gifunga ahantu hamwe na hamwe ni buto cyane, bigatuma ibara rihinduka cyane muri utwo duce.
4. Guhinduka kw'ibara ry'icyuma gifunga bishobora guterwa n'ibintu bifitanye isano n'ibidukikije.
Ubwo bwoko bw'ihinduka ry'ibara rikunze kugaragara mu bintu bifunga ibintu byo mu bwoko bwa oxime, kandi impamvu nyamukuru ituma ibara rihinduka ni ukuba hari ibintu bihumanya ikirere. Hari ahantu henshi haboneka ibintu bihumanya ikirere, nko gusiga silicone ihumanya ikirere, gusiga acrylic coatings bikoreshwa mu bwubatsi, dioxyde sulfur nyinshi mu kirere mu gihe cy'itumba mu turere two mu majyaruguru, gutwika imyanda ya pulasitiki, gutwika asphalt, n'ibindi. Ibi bintu byose bihumanya ikirere bishobora gutuma ibintu bifunga ibintu byo mu bwoko bwa oxime bihinduka ibara.
Ni gute wakwirinda guhindura ibara rya silicone sealant?
1) Mbere yo kubaka, kora ikizamini cyo guhuza ibikoresho bihuye n'icyuma gifunga kugira ngo urebe ko bihuye n'ibikoresho, cyangwa uhitemo ibikoresho bihuye n'ibindi bikoresho, nko guhitamo ibikoresho bya silicone aho guhitamo ibikoresho bya silicone kugira ngo ugabanye ibyago byo guhinduka umuhondo.
2) Mu gihe cyo kubaka, ifu ifunga neza ntigomba kuba ihuye n'ifu ifunga aside. Ibintu bya amine biva mu kubora kwa ifu ifunga neza nyuma yo guhura na aside bizashira mu kirere bigatera ibara.
3) Irinde ko ikintu gifunga ibintu cyakora cyangwa kikagera ahantu hangiza nk'aside na alkali.
4) Guhinduka kw'ibara ahanini biba mu bikoresho bifite ibara ryoroheje, umweru, kandi bibonerana. Guhitamo ibifunga byijimye cyangwa umukara bishobora kugabanya ibyago byo guhinduka kw'ibara.
5) Hitamo ibifunga bifite ubuziranenge bwemejwe kandi bizwi neza mu kirango-JUNBOND.
Igihe cyo kohereza: Gicurasi-22-2023