Cov ntawv thov thiab kev ua tau zoo ntawm txhua hom o nplhaib?
Koj puas paub txog kev siv thiab ua haujlwm ntawm ntau yam kub tiv thaiv roj hmab ntsaws ruaj ruaj? Hnub no peb' rov mus tham txog qhov ntawd.
Tam sim no, muaj ntau ntau yam kub kub tiv taus roj hmab sealing coj teeb meem. Raws li cov khoom siv raw sib txawv siv, tuaj yeem muab faib ua NBR butadiene roj hmab sealing strips, HNBR Hydrogenated Butadiene roj hmab sealing strips, SIL silicone roj hmab sealing strips, VITON fluorosilicone roj hmab sealing ib daim hlab thiab FLS fluorosilicone rubber sealing strips.
NBR butadiene roj hmab foob kub ntau yog -40 ~ 120 ° C, feem ntau siv roj av, dej, roj silicone thiab lwm yam tshaj tawm, nws siv ntau yog dav, thiab tus nqi kuj tsis tshua zoo, yog li nws tau txais tos los ntawm ntau tus neeg siv.Tab sis nws tsis haum rau ketones, ozone, nitrohydrocarbons thiab lwm cov kuab tshuaj polar.
HNBR hydrobutadiene roj hmab foob sawb muaj qhov kub tsis haum ntawm -40 ~ 150 ℃. Nws yog tsuas yog siv nyob rau hauv lub tsheb cav system thiab tshuab ntxhua khaub ncaws system, tab sis tsis haum rau cawv, ester thiab lwm yam kev daws teeb meem.Nws muaj oxidation tsis kam, hnav tsis kam, tsim kua muag tsis kam, corrosion tsis kam.
Qhov kub tsis kam tiv thaiv ntau ntawm SIL silicone roj hmab sib khi khi yog -55 ~ 250 ℃ .Nws yog siv rau hauv txhua yam khoom siv hauv tsev, tshwj xeeb tshaj yog cov khoom uas xav tau ncaj qha rau tib neeg lub cev, xws li cov dej xa tawm thiab cov taub dej kub.Ua nws yog tsis muaj roj resistant, nws tsis haum rau siv nyob rau hauv xov xwm uas muaj roj.Nws muaj han Hao' s txias thiab kub ua hauj, thiab zoo rwb thaiv tsev.
Qhov kub tsis kam tiv thaiv ntau ntawm FKM fluorin roj hmab sib khi khi yog -20 ~ 280 ℃. Nws yog tsuas yog siv rau hauv kev sib khi ntawm cov cav, tshuaj cog nroj tsuag thiab roj tshuab, vim tias nws muaj qhov ua tau zoo rau ntau cov khoom siv roj thiab cov kuab tshuaj, yog li nws tsim nyog rau kev sib khi ntawm cov kua qaub, aliphatic hydrocarbons, uas muaj ntxhiab hydrocarbons.Nws muaj cov tshuaj tiv thaiv zoo, ozone tsis kam.
FLS fluorosilicone rubber sealing tawm qhov kub thiab txias ntau yog -50 ~ 260 ℃, nws feem ntau siv hauv aviation, huab cua thiab tub rog sab saud, nws cov yam ntxwv yog feem ntau kub tiv thaiv, tsis kam tiv taus kub, tiv taus hnyav, roj tsis kam.
