I-Sealant ibhekiselele kwizinto zokutywina ezikhubaza ngokumila kwendawo yokutywina, akulula ukuhamba, kwaye inokunamathela okuthile.
Yinto encamathelayo esetyenziselwa ukuzalisa izithuba zokumisela ukutywinwa. Inemisebenzi ye-anti-leakage, i-waterproof, i-anti-vibration, i-sound insulation kunye nokushisa ukushisa. Ngokuqhelekileyo, izinto ezinomileyo okanye ezingenayo i-viscous ezifana ne-asphalt, i-resin yendalo okanye i-resin yokwenziwa, i-rubber yendalo okanye i-rubber yokwenziwa isetyenziswe njengesiseko sezinto, kunye nezizalisi ezingenasici ezifana ne-talc, udongwe, i-carbon black, i-titanium dioxide kunye ne-asbestos zongezwa. Iiplastiki, izinyibilikisi, ii-agent zokunyanga, i-accelerators, njl. Isetyenziswa ngokubanzi ekutywineni ukwakhiwa, ukuthutha, izixhobo zombane kunye neenxalenye.
Zininzi iindidi zezitywini: ii-silicone sealants, ii-polyurethane sealants, ii-polysulfide sealants, acrylic sealants, anaerobic sealants, epoxy sealants, butyl sealants, neoprene sealants, PVC sealants, kunye neasphalt sealants.
Iimpawu eziphambili ze-sealant
(1) Ukubonakala: Ukubonakala kwe-sealant kunqunywe ngokukodwa ngokusasazwa komhluzi kwisiseko. Isigcwalisi ngumgubo oqinileyo. Emva kokuchithwa kwe-kneader, i-grinder kunye nomatshini weplanethi, inokuchithwa ngokulinganayo kwi-rubber yesiseko ukwenza i-paste ecocekileyo. Inani elincinci lezohlwayo ezincinci okanye isanti liyamkeleka kwaye liqhelekileyo. Ukuba i-filler ayisasazwanga kakuhle, amasuntswana amaninzi arhabaxa kakhulu aya kuvela. Ukongeza kwi-dispersion of fillers, ezinye izinto ziya kuchaphazela kwakhona ukubonakala kwemveliso, njengokuxuba ukungcola kwe-particle, i-crusting, njl.
(2) Ubulukhuni
(3) Amandla okuqina
(4) Ubude
(5) Imodyuli yokuqina kunye nokukwazi ukufuduka
(6) Ukunamathela kwi-substrate
(7) I-Extrusion: Lo ngumsebenzi wokwakhiwa kwe-sealant Into esetyenziselwa ukubonisa ubunzima be-sealant xa isetyenziswa. Iglu engqindilili kakhulu iya kuba ne-extrudability engalunganga, kwaye kuya kuba nzima kakhulu ukuncamathelisa xa isetyenziswa. Nangona kunjalo, ukuba iglue yenziwe ibhityile kakhulu ngokuqwalasela i-extrudability, iya kuchaphazela i-thixotropy ye-sealant. I-extrudability inokulinganiswa ngendlela echazwe kumgangatho wesizwe.
(8) Thixotropy: Le yenye into yomsebenzi wokwakha we-sealant. Thixotropy ichasene ne-fluidity, oku kuthetha ukuba i-sealant inokutshintsha kuphela imilo yayo phantsi koxinzelelo oluthile, kwaye inokugcina imilo yayo xa kungekho mandla angaphandle. imilo ngaphandle kokuhamba. Ukumiselwa kwe-sag echazwe ngumgangatho wesizwe kukugwetywa kwe-thixotropy ye-sealant.
Ixesha lokuposa: Nov-04-2022