RPTFE (Faib Polytetrafluoroethylene) Gaskets yog qhov ntsuas ntawm kev xaiv hauv cov tshuaj lom neeg ua haujlwm, thiab tshuaj lom neeg ntau (-200+260 degree). Txawm li cas los xij, koj yuav xaiv txoj cai RPTFE gasket rau kev ua haujlwm txawv? Hauv qab no yog cov kev txiav txim siab tseem ceeb.
1. Tshuaj lom neeg sib xyaw ua ntej
RPTFE nws tus kheej tiv thaiv cov tshuaj feem ntau, tab sis cov khoom ntim (xws li cov iav fiber ntau, carbon fiber, thiab graphite) tuaj yeem cuam tshuam kev ua tau zoo. Piv txwv li, rau cov oxidizing zoo heev (xws li muaj cov sulfuric acid), xaiv RPTFE tsis muaj Carbon Fitters; Txog siab {-} cov txheej txheem siab chav dej, qauv nrog graphite lossis bronze hmoov ntxiv rau kev coj ua kom zoo nkauj coj tau pom zoo. Nco ntsoov xyuas cov rooj sib xyaw rau xov xwm thiab chav sau ua haujlwm.
2. Qhov kub thiab siab sib xyaw
Cov pa roj RPTFE muaj txiaj ntsig yog qhov haum rau qhov tsis muaj txiaj ntsig (tsawg dua lossis sib npaug rau 10 MPa). Rau siab siab - qhov kev siv yeeb nkab loj (xws li cov yeeb nkab flanges ntau dua los yog sib npaug}} {- reasforced versions. Hais txog qhov kub thiab txias, luv - tsis kam rau 260 qib yog pom zoo, tab sis ntev}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} kev pom zoo kom qis dua 200 degree. Cov qauv tshwj xeeb nrog Mica lossis cov Ceramic Folding yuav raug suav tias yog qhov siab- cov ntawv thov kub.
3. Kev sib khi saum npoo thiab kev zam txim
Flange flange surfaces (xws li cam khwb cia hlau) yuav tsum tau softer gaskets. Ntshiab RPTFE lossis qauv nrog PTFE micropowder muab lub haum zoo. Rau cov hlau qhuav stainless hlau flanges, siab-} rebound composite cov gaskets tuaj yeem siv. Tsis tas li ntawd, cov qauv xws li ASME B16.21 muaj cov kev cai nruj me ntsis ntawm gasket sib npaug ntawm cov qauv flange (xws li DN / PN lossis Ansi).
4. Daim ntawv pov thawj thiab ua raws li
Cov zaub mov thiab cov tshuaj lag luam yuav tsum tau FDA lossis USP chav kawm vi cov gaskets. Kev siv hluav taws xob nuclear lossis siab -}}}}}}}}}}}}}}}} itgassing zog (xws li ntshiab rtfe lossis qauv nrog barium sulfate). Nco ntsoov thov kev ntawv pov thawj thiab cov ntawv ceeb toom xeem thaum yuav khoom.
Ntsiab lus: Xaiv ntawm RPTFE gaskets yuav tsum muaj kev ntsuas kev tshaj tawm ntawm cov xov xwm, kub, thiab Flange. Ua ntej pab tswv yim rau tus xa khoom rau kev sim ntsuas. Txoj cai xaiv tsis tau tsuas yog txuas lub txim lub neej, tab sis kuj tsis muaj kev pheej hmoo ntawm kev xau.
