FKM O-rings thiab FFKM O-rings sib txawv

Ntau yam kub

Viton (FKM)

Zoo li qub foob:-26℃ ~ 232 ℃, short sij hawm li 275℃

Foob dynamic:-15℃ ~ 200 ℃

Hom GLT:-45℃ ~ 215 ℃

Cov yam ntxwv O-ring fluorine roj hmab: kuj kub siab, kua qaub thiab alkali kuj, roj kuj thiab tshuaj kuj. Kub kuj yog ib qho zoo tshaj silicone roj hmab, zoo tshuaj kuj, kuj tshaj cov roj thiab cov kuab tshuaj (xav kom ketones thiab esters), weatherability zoo, thiab nws kuj; no kuj tsis yog phem kuj, cov kub kev khwv yog-20℃~ 250℃, hom mis tshwj xeeb yuav mas tsis tshua muaj kub rau-40℃.

Perfluoroethylene (FFKM, FFPM)

Daim ntawv thov kev kub sustainable 260° C rau 290° C yog nws yuav siv thiab cov intermittently rau 316° C.

FFKM O-ring no mas siv nyob rau hauv txoj kev ua lag luam semiconductor, thiab nws cov tshuaj kuj yog ze PTFE, ces nws yuav tiv taus cov kua tshuaj yuav luag thiab gases, xws li: cov organic acids, kua qaub inorganic, alkaloids, ketones, esters thiab cawv suab thaj uas. Ntxiv nrog rau qhov tshuaj kuj zoo ib yam khoom Teflon, FFKM O-ring muaj elasticity roj hmab, kuj mob kub thiab tu lub. Raws li tus kub thiab siv mus sij hawm ntev, nws yuav tau muab faib ua: 250 ntev℃, 280 ntev℃, 300 mus sij hawm ntev℃, thiab mus sij hawm ntev 320℃.

Cov FFKM O-ring yog yus tsis muaj feem yuav luag txog cov kua nruab nrog cev, xws li cov nqaijrog, aromatics, esters, ethers, ketones, roj, lubricants thiab cov kua qaub no feem ntau. Tej halides thiab muaj zog oxidizing kua qaub ua rau cov nyhuv uas o khoom tawg yooj yim. Daim ntawv thov kev kub sustainable 260° C rau 290° C yog nws yuav siv thiab cov intermittently rau 316° C. FFKM O-ring lawm yav tom ntej no kuj ua rau nws, huab cua thiab nplaim, tawg los tiv thaiv zoo, thiab nws kuj yuav siv tau rau siab nqus khoom.