Ndeapi matambudziko achasangana nemagadzirirwo sealants muchando?

1. Kunonoka kupora

Dambudziko rekutanga iro kudonha kamwe kamwe kweambient tembiricha kunounza kunesilicone structural sealantndeyekuti inonzwa kuporeswa panguva yekushandisa, uye chimiro chesilicone chakakora.

Iyo yekurapa maitiro esilicone sealant ikemikari yekuita maitiro, uye tembiricha uye hunyoro kwezvakatipoteredza zvine imwe pesvedzero pakumhanya kwayo kwekurapa.Kune chimwe-chikamusilicone structural sealants, iyo yakakwirira tembiricha uye hunyoro, kukurumidza kukurumidza kurapa kuchava.Mushure mechando, tembiricha inodonha zvakanyanya, uye panguva imwechete, nehunyoro hunyoro, maitiro ekurapa echisimbiso chechimiro anokanganisa, saka kupora kweiyo structural sealant kunononoka.Mumamiriro ezvinhu akajairwa, kana tembiricha yakadzikira kupfuura 15 ℃, chiitiko chekunonoka kurapwa kwechimiro chisimbiso chiri pachena.

Solution: Kana mushandisi achida kuvaka munzvimbo yakadzika tembiricha, zvinokurudzirwa kuita diki-nzvimbo silicone sealant bvunzo isati yashandiswa, uye kuita peel adhesion bvunzo kuratidza kuti chisimbiso chechimiro chinogona kuporeswa, kunamatira kwakanaka, uye chitarisiko chacho hachisi dambudziko.nzvimbo inoshandiswa.Nekudaro, kana tembiricha yepakati yakadzikira se4 ° C, kuvakwa kweiyo structural sealant haikurudzirwe.

Iyo sealant inonamirwa uchishandisa tembiricha uye hunyoro hwenzvimbo.

2. Matambudziko ekubatana

Nekudzikira kwetembiricha uye hunyoro uye kunonoka kurapa, pane zvakare dambudziko rekubatana pakati peiyo structural sealant uye substrate.Izvo zvese zvinodiwa pakushandiswa kwesilicone structural sealantzvigadzirwa ndezvi: nzvimbo yakachena ine tembiricha ye10 ° C kusvika 40 ° C uye hunyoro hwe40% kusvika 80%.Kupfuura zviri pamusoro apa zvishoma tembiricha zvinodiwa, kumhanya kwekubatanidza kunodzikiswa, uye nguva yekubatana zvizere kune substrate inowedzerwa.Panguva imwecheteyo, kana tembiricha yakadzikira, kunyorova kweadhesive uye pamusoro peiyo substrate kunoderera, uye panogona kunge paine mhute isingaoneki kana chando pamusoro peiyo substrate, iyo inokanganisa kunamatira pakati pechisimbiso chechimiro uye chisimbiso. substrate.

Sarudzo: Kana tembiricha yekuvaka yekuvakwa kweiyo structural sealant iri 10 ° C, iyo structural sealant inosungirirwa kune substrate mumamiriro chaiwo.Adhesion bvunzo inofanirwa kuitwa munzvimbo yakaderera tembiricha yekuvaka kuti isimbise kunamatira kwakanaka kusati kwavakwa.Factory jekiseni rezvimiro zvekusimbisa sealant inogonawo kukurumidzira kurapwa kwechimiro chisimbiso nekuwedzera tembiricha uye hunyoro hwenzvimbo umo chisimbiso chechimiro chinoshandiswa, uye panguva imwe chete, zvinodikanwa kuti zviwedzere nguva yekurapa.

3. Wedzera viscosity

Structural sealantsinozokora zvishoma nezvishoma uye kuita mvura shoma sezvo tembiricha inodzikira.Kune maviri-echikamu structural sealants, zvisimbiso zvezvimiro zvinowedzera viscosity zvinowedzera kudzvanywa kwemushini weglue uye kuderedza extrusion yechisimbiso chechimiro.Kune imwe-chikamu structural sealants, iyo structural sealant inokora, iyo yakawedzera kudzvanywa kwepfuti yeglue kuti ibudise iyo structural sealant inogona kutora nguva uye kushanda nesimba pamabasa emaoko.

Solution: Kana pasina mhedzisiro pakubudirira kwekuvaka, kuderera kwekushisa kwekushisa chinhu chakajairika, uye hapana matanho ekuvandudza anodiwa.

Kana iyo yekuvaka mhedzisiro, zvinokwanisika kufunga kuwedzera tembiricha yekushanda kweiyo chisimbiso chechimiro kana kutora mamwe ekuwedzera ekudziya matanho, sekuchengeta chisimbiso chechimiro muimba yekudziya kana mukamuri ine mhepo inofefetera mberi, kuisa heater yekupisa mukati. iyo gluing workshop, uye kuwedzera iyo