Kev Paub Txog Kev Lag Luam: Yuav Ua Li Cas Xaiv Txoj Cai Roj Hmab Gasket Cov Khoom Siv rau Kev Siv Lag Luam
Roj hmab gaskets (xws li O-rings, X-rings, thiab pav ca gaskets) yog cov khoom me me uas ua lub luag haujlwm tseem ceeb hauv kev ua kom cov cuab yeej muaj kev nyab xeeb, ruaj khov, thiab xau{2}} ua haujlwm dawb. Kev xaiv cov khoom siv tsis raug yuav ua rau o, tawv, tawg, tawg, lossis txawm tias cov khoom kaw. Phau ntawv qhia no muab kev paub txog kev lag luam los pab cov engineers thiab cov neeg yuav khoom xaiv cov khoom sib khi kom zoo.
1. Cov khoom siv roj hmab thiab lawv cov ntawv thov
1.1 NBR (Nitrile Butadiene Roj Hmab)
- Qhov zoo tshaj plaws rau cov roj, hydraulic kua, diesel.
- Kub: -40℃~ +120℃.
- Tus nqi- siv tau zoo thiab siv dav hauv cov tshuab thiab tsheb qhov chaw.
1.2 EPDM (Ethylene Propylene Diene Monomer)
- Zoo heev rau dej, chav dej, sab nraum zoov sealing, thiab nres cov kua dej.
- Kub: -50℃~ +150℃.
- Muaj zog tiv thaiv ozone, UV, thiab kev laus.
1.3 TSI / Viton
- Kev ua haujlwm siab hauv cov tshuaj, roj, cov kuab tshuaj, thiab kub kub.
- Kub: -20℃~ +250℃.
- Dav siv nyob rau hauv aerospace, automotive, thiab tshuaj industries.
1.4 Silicone (VMQ)
- Khoom noj khoom haus-qib, kho mob-qib, yoog raws thiab huv.
- Kub: -60℃~ +200℃.
- Tsis pom zoo rau kev kub siab lossis roj ib puag ncig.
1.5 HNBR (Hydrogenated NBR)
- Txhim kho toughness, roj kuj, thiab kub kuj.
- Kub: -40℃~ +150℃.
- Zoo tagnrho rau cov tshuab tsheb thiab cov khoom hnyav -cov khoom siv.
1.6 FFKM (Perfluoroelastomer)
- Sab saum toj - qib tshuaj tiv thaiv thiab kub kub ua haujlwm.
- Kub: -25℃~ +320℃.
- Siv nyob rau hauv semiconductor, aerospace, thiab siab -kawg tshuaj nroj tsuag.
2. Cov ntaub ntawv pom zoo rau kev lag luam sib txawv
2.1 Kev Lag Luam Khoom Noj & Dej Haus
- Pom zoo: Silicone, EPDM
- Yam yuav tsum tau muaj: FDA / LFGB, tsis muaj ntxhiab, nyab xeeb, kub-resistant.
2.2 Automotive Kev Lag Luam
- Pom zoo: NBR, HNBR, FKM
- Ua kom pom tseeb: Roj kuj, roj tsis kam, siab kub durability.
2.3 Dej Systems & Cov kav dej
- Pom zoo: EPDM, NBR (rau cov dej txias)
- Ua kom pom tseeb: Anti-aging, anti-chlorine, ruaj khov hauv dej kub.
2.4 Chemical Processing & Corrosive Ib puag ncig
- Pom zoo: FKM, FFKM
- Ua kom pom tseeb: Ua rau cov kua qaub, cov kuab tshuaj, cov roj, cov tshuaj muaj zog.
3. Tsib qhov yuam kev hauv kev xaiv cov khoom
- Kev txiav txim tsis raug cov khoom raws li xim.
- Xaiv cov khoom pheej yig rau siab - cov ntawv thov tshwj xeeb.
- Tsis quav ntsej ua haujlwm kub thiab siab.
- Tsis xav txog qhov nruab nrab tiag tiag (roj / dej / roj / tshuaj).
- Overlooking compression teeb kev ua tau zoo.
4. Cov lus qhia tshaj lij rau kev xaiv cov roj hmab gaskets
- Ua ntej qhov nruab nrab → ces kub → ces hardness.
- EPDM rau cov kav dej; NBR rau roj systems.
- Siv FKM / FFKM rau qhov kub thiab txias lossis tshuaj lom neeg ib puag ncig; Silicone rau zaub mov- qib ntawv.
