Khoom Zoo
1. Cov khoom sib xyaw & sealing tshuab
Roj-resistant O-rings yog molded los ntawm FKM (fluorocarbon roj hmab) compounded nrog reinforcing fillers, curing agents, thiab accelerators, ces compression- molded thiab vulcanized rau hauv toroidal elastomers nrog ncig hla- seem. Thaum compressed nyob rau hauv lub caj pas, hu rau kev ntxhov siab yog generated; sealing yog tsim los thaum kev sib cuag kev ntxhov siab tshaj qhov siab ntawm qhov nruab nrab. Cov pa roj carbon-fluorine bonds hauv cov qauv molecular muab cov yam ntxwv o qis hauv cov khoom siv roj.
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2. Roj Media Resistance
Tshwj xeeb tsim los rau roj av, diesel, roj aviation, biofuels, thiab cawv-cov roj sib xyaw. FKM nthuav tawm ntim swell Tsawg dua lossis sib npaug li 8% hauv ASTM Roj B (40℃× 72h). Kev pabcuam kub tsis tu ncua: 45℃txog 300 degree.
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3.Roj System Compatibility
Haum rau ntev - kev sib cuag nrog: ntxhia- cov roj raws li roj, oxygenated fuels (MTBE, ethanol blends), aviation roj JP-8, diesel, thiab biodiesel. Cov ntsaws ruaj ruaj tsis tawv, soften, los yog distort tom qab kis tau roj.
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4. Hardness & Compression Set
Txheem hardness: Ntug A 70 ± 5 (kev cai 50 ~ 90 muaj). Compression set (200℃× 70h, 25% compression) Tsawg dua los yog sib npaug li 30%, kom ntseeg tau ntev -lub sij hawm sealing tiv tauj siab. Tensile zog Ntau dua los yog sib npaug rau 16MPa, elongation ntawm tawg Ntau dua los yog sib npaug rau 150%.
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5.Full Size Range · Customization Muaj
Hla -section 1.0 ~ 7.0mm, OD 10 ~ 450mm. Ua raws li GB / T 3452.1 thiab AS568. Qauv -raws li customization muaj yam tsis muaj kos duab - pwm tsim 3 ~ 5 hnub.
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Daim ntawv thov
| Kev lag luam | Daim ntawv thov | Cov xwm txheej | Hom foob |
|---|---|---|---|
| Automotive | Roj injector O-rings, siab-siab ntau-rail fittings, roj twj tso kua mis seals, tank cap seals, roj kab fittings | Gasoline/diesel/alcohol-cov roj sib xyaw, -45℃~ 150 degree, 0.3 ~ 25MPa | Static axial/radial, qee qhov qis -siab dynamic |
| Aviation Roj Systems | Aviation roj twj tso kua mis seals, roj kab fittings, tank chaw nres nkoj seals | Aviation kerosene JP-8 / dav hlau A-1, -55℃~ 200 degree | Static |
| Marine Fuel Systems | Marine cav roj kab ntsaws ruaj ruaj, roj lim, roj- dej cais | Hnyav roj / diesel / marine roj, seawater ib puag ncig | Static thiab qis -siab dynamic |
| Generator Teeb | Diesel generator roj kab, roj lim | Diesel, ambient ~ 120 degree, Tsawg dua lossis sib npaug rau 10MPa | Static |
| Kev tsim kho tshuab | Roj tank cap seals, roj kab fittings | Diesel / hydraulic roj sib xyaw ib puag ncig, -20℃~ 120 degree | Static |
Installation & Txoj Kev Ua Haujlwm
1. Ua ntej-Kev kuaj xyuas & Tu
Ntxuav lub caj pas thiab mating nto nrog lint -dawb daim ntaub soaked nyob rau hauv acetone los yog cawv kom tshem tawm cov chips, roj films, thiab qub seal residue. Tshawb xyuas caj pas hauv qab thiab phab ntsa kom khawb, qhov, lossis burrs; kho lossis hloov qhov chaw yog tias pom.
2. Lubrication
Siv ib txheej nyias nyias ntawm cov roj- cov roj nplua nyeem tau zoo (cov roj fluorinated lossis cov roj siv hluav taws xob) ntawm O- nplhaib nto kom txo qis kev sib txhuam thiab tiv thaiv qhov chaw puas.
3. Cov txheej txheem kev teeb tsa
Siv txoj kev muab kauv ntxig los yog lub tes tsho txuas ntxiv kom maj mam thawb O-ntiv nplhaib rau hauv caj pas. Tsis txhob siv cov cuab yeej ntse. Xyuas kom lub nplhaib O- tsis twisted hauv caj pas. Ntxoov O-ntiv nplhaib OD los ntawm tsis pub ntau tshaj 2% ntawm nws thawj ncig kom tsis txhob hla mus tas li -section deformation.
4. Compression Ratio Verification
Measure gland depth and O-ring cross-section height after installation to calculate actual compression. Static seals: 15%–30% (axial) or 20%–35% (radial); dynamic seals: 10%–20%. For system pressures >10MPa, nruab ib lub PTFE / PEEK thaub qab nplhaib ntawm sab siab kom tiv thaiv extrusion.
Vim li cas ho xaiv peb?
1.Direct Chaw tsim tshuaj paus
Tus kheej - muaj lub Hoobkas, 500,000 pcs / hnub muaj peev xwm. Tsis muaj neeg nruab nrab.
2. Ceev Sampling
Txheem pwm hauv Tshuag. Kev cai pwm 3-5 hnub. Tib - hnub sampling.
3. Kev Tswj Xyuas Zoo
Kev tshuaj xyuas cov khoom siv nruj heev. Dimensional kam rau ua: OD ± 0.1mm, C / S ± 0.05mm. 100% kev tshuaj xyuas tag nrho ua ntej xa khoom.
4. Ntau yam khoom siv
FKM (-45℃~ 300 degree), NBR (-65℃~ 150 degree), HNBR, EPDM, VMQ, FVMQ, FFKM (327 degree).
FAQ:
Q1: Dab tsi yog qhov sib txawv ntawm roj- tiv taus O-rings thiab qauv O-rings?
Roj-resistant O-rings siv FKM nrog o Tsawg dua lossis sib npaug li 8% hauv cov roj thiab tiv taus kub txog 300℃; tus qauv NBR swells 20-30% thiab txwv rau 120 degree, ua tsis tiav ntawm kev sib cuag roj.
Q2: Puas yog FKM roj-resistant O-rings haum rau cawv-cov roj sib xyaw (ethanol, methanol)?
Yog lawm. FKM resists E10, E85, thiab M85 rau peb cov ntawv sau ua ke. Rau cov ntsiab lus cawv siab dua 85%, siv cov qib FKM tshwj xeeb lossis FFKM.
Q3: Cov ntaub ntawv dab tsi uas yuav tsum tau ua rau kev cai hais?
Muab: qhov ntev (C/S, ID/OD), cov khoom siv (FKM/Viton®/FFKM), Shore A hardness (default 70), siab tshaj plaws/tsawg kub, ua hauj lwm siab, thiab roj hom.
Q4: Dab tsi yog MOQ thiab lub sijhawm ua haujlwm rau tus qauv vs.
Qhov ntau thiab tsawg yog nyob rau hauv Tshuag thiab nkoj hauv 24-48 teev. Kev cai txiav txim: MOQ 100 daim, pwm kev loj hlob 3-5 hnub, ntau lawm ntxiv tus me nyuam 10-30 hnub (nyob ntawm seb qhov kev txiav txim kom muaj nuj nqis).
