Polyurethane Sealant (PU sealant) mumakampani agalasi a Auto

Zomatira / zosindikizira zamagalimoto zimayikidwa molingana ndi magawo ogwiritsira ntchito, ndipo zitha kugawidwa m'magulu asanu: zomatira zamagalimoto am'galimoto, zomatira zamkati mwagalimoto, zomatira zamakina opangira injini yamagalimoto, zomatira pamagalimoto agalimoto, zomatira pamakina opanga magalimoto.Akuti pofika chaka cha 2020, kuchuluka kwa zida zomangira ndi zomata pamagalimoto aku China kudzapitilira matani 100,000, pomwe zomatira za polyurethane ndiye mtundu wofunika kwambiri wa guluu.M'zaka zaposachedwa, kufunika kwapachaka kwa zomatira za polyurethane ku China Kuwonjezeka pa avareji ya 30%.

Tigawana zina zoyambira za windshield auto glass PU sealant mu gawoli.

Ndi gawo limodzi chinyezi chochiritsa zomatira za polyurethane.

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Njira yomangiriza magalasi amagalimoto agalimoto ku gulu lagalimoto idayamba ku United States m'ma 1960s.Zomatira za PU zochizira chinyontho chimodzi zidayamba kupangidwa ndi ESSEX Chemical Company ya ku United States koyambirira kwa zaka za m'ma 1970 ndipo zidagwiritsidwa ntchito bwino ku General Motors yaku United States.Mu 1976, Audi Motors adagwiritsanso ntchito pa Audi C2.Pambuyo pake, opanga magalimoto aku Japan ndi ena aku Europe motsatizana atengera njira yolumikizira mwachindunji magalasi akutsogolo.Chifukwa cha zomangamanga zosavuta komanso kugwiritsa ntchito makina opangira makina, zoposa 95% ya magalasi oyendera mphepo padziko lonse lapansi ndi magalasi am'mbali amamangidwa pogwiritsa ntchito zomatirazi.

Chomatira cha PU chochiza chinyontho chimodzi chimakhala ndi magulu a-NCO, omwe amatha kuchitapo kanthu ndi chinyontho pamtunda kuti chitsatidwe kapena mlengalenga kuti chichiritsidwe.Guluu wagalasi wa PU wochiritsa chinyezi wagawo limodzi umafunika kuti ukhale wosamala ndi chinyezi, kuchiritsa mwachangu, ndikusunga kukhazikika bwino mukachiritsidwa, ndipo imayenera kupakidwa kamodzi kokha ndikukhazikika kosungirako bwino.Ndi chinthu chomwe chili ndi luso lapamwamba kwambiri pa zomatira zamagalimoto, komanso ndizomwe zimagwiritsidwa ntchito kwambiri pazomatira za PU zamagalimoto aku China.

Kutengera luso la magalasi omangira ndi kusindikiza kungathe kugwirizanitsa mwamphamvu galasi lamoto ndi galimoto yagalimoto yonse, kuonjezera kusasunthika kwa thupi la galimoto ndikutha kukana kuzunzika, ndikuwonetsetsa kusindikiza.Ndime 212 ya US Federal Automobile Safety Standard (FMVSS) ikunena kuti galimoto ikagundana ndi khoma la konkriti pa liwiro la 50km/h, chiwongolero cha kukhulupirika kwa windshield chiyenera kukhala pamwamba pa 75%.Pakalipano, United States, Japan, Germany, France, etc. ndi dziko lathu pafupifupi onse amatengera ndondomekoyi pakuyika galasi lamoto wamoto, ndipo panthawi imodzimodziyo, magalasi ambiri a galasi ndi mbali ya zenera za magalimoto okwera amatengeranso. njira yolumikizirana.

Chisindikizo cha PU chochizira chinyezi chagawo chimodzi ndichoyenera kumangirira porous pamwamba.Pamalo opanda porous monga galasi ndi zitsulo, nthawi zambiri amafunika kugwiritsidwa ntchito pamodzi ndi galasi activator, galasi primer, ndi penti primer.Pofuna kuonetsetsa kuti kugwirizana kodalirika pakati pa galasi lakutsogolo ndi galimoto ya galimoto, ndikofunikira kuvala choyambira pamwamba pa galasi, zomwe zingathe kupititsa patsogolo mphamvu yomangirira ya PU yomatira pa galasi.


Nthawi yotumiza: Nov-09-2021