Sezvatinoziva tese, zvivakwa zvinowanzotarisirwa kuti zvive nemakore angangoita makumi mashanu. Saka, zvinhu zvinoshandiswa zvinofanirawo kunge zvichishanda kwenguva refu. Silicone sealant yave ichishandiswa zvakanyanya mukuvaka kudzivirira mvura uye kuvhara nekuda kwekudzivirira kwayo kupisa kwakanyanya uye kwakaderera, kudzivirira kukwegura kwemamiriro ekunze, uye hunhu hwakanaka hwekubatanidza. Zvisinei, mushure menguva yakati mushure mekuvakwa, kuchinja kweruvara rwesilicone sealant kwave dambudziko rinowanzoitika, izvo zvinosiya "mitsetse" isingatarisirwi pazvivakwa.
Sei silicone glue ichichinja ruvara mushure mekushandisa?
Pane zvikonzero zvakawanda zvinoita kuti silicone tunnel sealant kana girazi glue zvisashande zvakanaka kana kuti zvisashande zvakanaka, kunyanya muzvinhu zvinotevera:
1. Kusawirirana kwezvinhu zvakasiyana-siyana zvinovhara magirazi. Zvinovhara magirazi zvine acidic, zvinovhara magirazi zvine alcohol, uye zvinovhara magirazi zvine acidic hazvigone kushandiswa pamwe chete, sezvo zvichigona kukanganisana uye kukonzera kuchinja kweruvara. Zvinovhara magirazi zvine acidic zvinogona kukonzera kuti zvinovhara magirazi zvine acidic zviite yero, uye kushandisa zvinovhara magirazi zvine acidic uye zvinovhara magirazi zvine alcohol pamwe chete kunogonawo kukonzera yero.
Mamorekuru anoburitswa panguva yekucheneswa kwezvisimbiso zvemhando yeoxime zvisina kusimba, -C=N-OH, anogona kuita nemaacids kuti aumbe mapoka emaamino, ayo anogadziriswa nyore nyore neokisijeni mumhepo kuti aumbe zvinhu zvine mavara, zvichikonzera kuchinja kweruvara rwechisimbiso.
2. Kusangana nerabha nezvimwe zvinhu
Zvivharo zvesilicone zvinogona kuchinja ruvara rweyero kana zvakabatana zvakananga nemamwe marudzi erabha, akadai serabha yechisikigo, rabha yeneoprene, uye rabha yeEPDM. Marabha aya anoshandiswa zvakanyanya mumadziro emaketeni nemahwindo/masuo sezvishandiso zverabha, magasket, nezvimwe zvinhu. Kuchinja kweruvara uku kunoratidzwa nekusaenzana, zvikamu zvacho chete zvichibatana zvakananga nerabha zvichichinja ruvara rweyero nepo dzimwe nzvimbo dzisingakanganiswi.
3. Kuchinja kweruvara rwechisimbiso kunogonawo kukonzerwa nekutambanudza zvakanyanya
Chiitiko ichi chinowanzo fungidzirwa zvisirizvo nekuda kwekurasikirwa neruvara rwechivharo, izvo zvinogona kukonzerwa nezvinhu zvitatu zvakafanana.
1) Chivharo chakashandiswa chapfuura simba racho rekuchinjika uye pfundo racho ratambanudzwa zvakanyanya.
2) Ukobvu hwechivharo munzvimbo dzakati wandei hwakanyanya kutetepa, zvichikonzera shanduko dzemavara munzvimbo idzodzo.
4. Kuchinja kweruvara rwechisimbiso kunogonawo kukonzerwa nezvinhu zvakatipoteredza.
Rudzi urwu rwekuchinja ruvara runonyanya kuwanikwa muzvivharo zvemhando ye oxime-type, uye chikonzero chikuru chekuchinja ruvara ndechekuvapo kwezvinhu zvine acid mumhepo. Kune nzvimbo dzakawanda dzinowanikwa zvinhu zvine acid mumhepo, zvakaita se curaving acidic silicone sealant, acrylic coatings dzinoshandiswa mukuvaka, huwandu hwakawanda hwe sulfur dioxide mumhepo munguva yechando munzvimbo dzekuchamhembe, kupisa marara epurasitiki, kupisa asphalt, nezvimwewo. Zvinhu zvese izvi zvine acidic mumhepo zvinogona kukonzera kuti zvivharo zvemhando ye oxime zvishanduke.
Nzira yekudzivirira sei kusviba kwesilicone sealant?
1) Usati wavaka, ita bvunzo yekuenderana nezvinhu zviri kusangana nechisimbiso kuti uve nechokwadi chekuti zvinhu zvacho zvinoenderana, kana kusarudza zvinhu zvinopindirana, zvakaita sekusarudza zvigadzirwa zverabha zvesilicone panzvimbo pezvigadzirwa zverabha kuti uderedze mukana wekuti zviite yero.
2) Panguva yekuvaka, neutral sealant haifanirwe kusangana neacid sealant. Zvinhu zveamine zvinogadzirwa nekuora kwe neutral sealant mushure mekusangana neacid zvinozooxida mumhepo zvokonzera kuchinja kweruvara.
3) Dzivisa kusangana kana kusangana nechinovhara munzvimbo dzinoparadza dzakadai semaacids nealkalis.
4) Kuchinja ruvara kunonyanya kuitika muzvigadzirwa zvine ruvara rwakachenuruka, ruchena, uye zvinoonekera. Kusarudza zvivharo zvakasviba kana zvitema kunogona kuderedza njodzi yekuchinja ruvara.
5) Sarudza zvinonamira zvine hunhu hwakavimbiswa uye mukurumbira wakanaka wechiratidzo-JUNBOND.
Nguva yekutumira: Chivabvu-22-2023