Qhov twg zoo dua, FFKM (perfluorocarbon Rubber) lossis FLS (fluorosilicone Rubber)

FFKM (tag nrho cov fluorine roj hmab) fluoroplastic O-type O-type yog cov tshuaj tiv thaiv corrosion zoo heev, thiab feem ntau paub cov tshuaj xws li acid, alkali, ketone, ester, ether, thiab muaj zog khaus khaus. Qhov siab tshaj plaws kub tsis kam tuaj yeem ncav cuag 300 degree C. Nws feem ntau yog siv los daws qhov teeb meem sib khi ntawm qhov chaw ib puag ncig. Tus nqi yog ze li ntawm 100 npaug ntau dua li cov khoom siv roj hmab zoo tib yam. Nws kim heev. Tau kawg, cov nyhuv sealing yog qhov zoo, thiab nws tuaj yeem siv rau hauv ib puag ncig nruj heev thiab tsis tuaj yeem hloov pauv. Nws tsis haum rau kev siv ketone, qhov hnyav molecular thiab cov khoom sib xyaw uas muaj nitrate. Kev siv qhov kub thiab txias yog -20 degree ~ 220 degree
1. FLS (fluorine silicon roj hmab) fluoroplans O-type voj voog muaj qhov zoo ntawm fluorine roj hmab thiab silicon roj hmab, thiab muaj qhov kub thiab txias hauv roj-resistant, hnyav-resistant, roj roj, thiab siab thiab tsis kam. Kev yaig ntawm cov kab mob khaus khaus, cov kuab tshuaj uas muaj cov tshuaj tsw qab hydrocarbons, thiab cov kuab tshuaj uas muaj cov tshuaj chlorine-muaj cov kuab tshuaj. Yuav siv tau rau aerospace thiab tub rog lub hom phiaj. Tsis haum rau raug rau ketones thiab nres roj. Qhov ntsuas kub feem ntau yog siv -50 degree ~ 200 degree .
2. EPDM (Sanyuanye Roj Hmab) Fluoroplastic O-shaped nplhaib muaj cov huab cua zoo, tsis muaj ntxhiab tsw, dej tsis kam, thiab tshuaj lom neeg. Nws yog tsim rau cov dej cawv thiab ketones, thiab tseem tuaj yeem siv rau kev sib khi ntawm qhov kub-kub dej vapor ib puag ncig. Nws yog tsim rau cov khoom siv hauv chav dej, lub tsheb radiator thiab tsheb nres system. Tsis haum rau kev siv zaub mov lossis raug cov roj ntxhia. Feem ntau, qhov kub thiab txias yog -55 degree ~ 150 degree
3.CR (choride roj hmab) fluoride O-type O-shaped nplhaib tiv thaiv lub hnub thiab huab cua zoo heev. Nws tuaj yeem siv rau hauv cov tub yees xws li dichloro fluorine methane thiab ammonia. Nws yog diluted thiab silicon-resistant lubricating roj, tab sis muaj ib tug loj npaum li cas ntawm expansion nyob rau hauv cov ntxhia roj uas tsis muaj aniline. Nws yog ib qho yooj yim rau crystallize thiab harden ntawm tsawg kub. Nws tuaj yeem tsim nyog rau ntau yam ntsaws ruaj ruaj uas raug huab cua, tshav ntuj, khaus, thiab ntau yam nplaim hluav taws-resistant thiab tshuaj lom neeg corrosion seals. Tsis haum rau cov tshuaj muaj zog acid, nitrate, ester, chloroform thiab ketone. Feem ntau, qhov kub thiab txias yog -55 degree C ~ 120 ° C.
4.IIR (butyl roj hmab) fluoroplastic O-type O-type muaj roj zoo nruj, tiv thaiv tshav kub, tshav ntuj, thiab tsw ntxhiab tsw, kev ua haujlwm zoo rwb thaiv tsev; zoo tiv thaiv polar solvents xws li cawv, ketone, ester, thiab lwm yam. Muaj peev xwm raug rau tsiaj thiab cog roj los yog khaus.