Kev xaiv cov roj hmab kom raug yog qhov tseem ceeb rau kev ua haujlwm ntev, kev nyab xeeb, thiab ua raws li cov tsheb niaj hnub no. Los ntawm lub cav txias lub voj voog mus rau siab - cov kab hydraulic siab, kev xaiv cov khoom siv tsis raug tuaj yeem ua rau muaj kev puas tsuaj loj heev, kev degradation ntawm elastomer sai, thiab lub cev tsis ua haujlwm ntxov.
Cov lus qhia luv luv engineering no taug kev cov neeg tsim qauv thiab cov neeg saib xyuas kev yuav khoom los ntawm cov kev txiav txim siab tseem ceeb -txhais cov kev pabcuam, xaiv cov khoom siv elastomer, txiav txim siab tawv, thiab qhia qhov ua siab ntev- xyuas kom koj xaiv lub foob uas ua tau raws li ob qho tib si kev ua haujlwm nruj thiab kev tswj hwm.
1. Txhais ib puag ncig thiab kev pabcuam
Ua ntej xaiv ib qho kev sib txuas, koj yuav tsum tsim kom muaj cov txheej txheem kev ua haujlwm rau lub foob qhov chaw. Lub hauv paus tseem ceeb muaj xws li:
- Kub siab heev:Dab tsi yog qhov ntsuas kub ua haujlwm tas mus li? Dab tsi yog qhov luv -lub sij hawm siab tshaj kub? Piv txwv li, lub cav bays tuaj yeem tshaj 150 degree, yuav tsum tau siab -kub elastomers, thaum txias - huab cua pib xav tau yooj yim ntawm -40℃.
- Chemical thiab Fluid Exposure:Txheeb xyuas txhua cov kua dej uas lub foob yuav tiv tauj, suav nrog cov roj cav, cov khoom ua kom txias (glycol{0}}raws li), cov kua nres, roj, lossis cov kuab tshuaj ntxuav nruj heev.
- Kev khiav hauj lwm siab:Txiav txim siab ob qho tib si static thiab dynamic pressures. Siab - cov ntawv thov siab yuav tsum muaj cov sib xyaw ua ke nyuaj thiab nruj dua kom tshem tawm kom tsis txhob raug foob extrusion.
2. Kev xaiv cov khoom siv Elastomer
Lub hauv paus polymer txiav txim siab cov tshuaj sib raug zoo thiab thermal txwv ntawm lub foob. Xaiv cov khoom siv uas npog qhov xav tau tshaj plaws ntawm kev sib xyaw ua ke ntawm qhov kub thiab txias raug:
| Khoom siv | Qhov kub thiab txias (degree) | Kua Compatibility | Kev Siv Automotive |
|---|---|---|---|
| EPDM | -50 rau +150 | Zoo heev rau cov coolants, dej, thiab brake kua (glycol).Tsis yog rau cov roj. | Radiator grommets, HVAC ntsaws ruaj ruaj, nres lub tog raj kheej O-rings. |
| Nitrile (NBR) | -30 rau +120 | Kev tiv thaiv zoo rau roj av-raws li roj, roj, thiab cov kua dej hydraulic. | Cav roj foob, roj kab txuas, txheem O-rings. |
| FKM (Viton™) | -20 rau +250 | Kev tiv thaiv zoo rau qhov kub thiab txias, roj, thiab tshuaj lom neeg. | Roj injector seals, siab -temp engine gaskets. |
| Silicone (VMQ) | -60 rau +220 | Superior thermal stability. Zoo rau dej / cua, tab sis tsis muaj zog tsim kua muag thiab roj kuj. | Sensor gaskets, ignition cable khau raj, EV roj teeb ntsaws ruaj ruaj. |
3. Hardness (Shore A) thiab Compression Set
Roj hmab hardness, ntsuas ntawm Shore A nplai, ncaj qha cuam tshuam rau kev sib khi, kev sib txhuam, thiab kev tiv thaiv rau extrusion nyob rau hauv siab.
- Ntug A 30-50 (Soft):Hloov tau yooj yim, conforms tau yooj yim rau qhov chaw ntxhib. Qhov zoo tshaj plaws rau qis- cov npog plua plav, wiper seals, lossis vibration isolators.
- Ntug A 60-70 (Medium):Cov qauv kev lag luam rau feem ntau O-rings, grommets, thiab dav - lub hom phiaj gaskets. Muab qhov sib npaug ntawm compression thiab durability.
- Ntug A 80-90 (Hard):Siab nruj thiab zoo heev tsis kam rau extrusion. Yuav tsum muaj rau siab -cov ntawv thov hydraulic los yog cov ntsaws ruaj ruaj uas muaj kev hnyav hnyav.
4. Dimensions, Tolerances, thiab Hla-Section
Qhov loj me me yog qhov tseem ceeb los xyuas kom meej tias qhov "squeeze" (compression) poob rau hauv qhov tau txais ntau yam - feem ntau 15% mus rau 30% rau cov ntsaws ruaj ruaj zoo li qub.
- Inner Diameter (ID) thiab Hla-Section (CS):Rau O-rings, ob qhov kev ntsuas no qhia qhov haum hauv lub caj pas. Xyuas kom lub foob tsis muaj ntau tshaj 5% thaum ntsia.
- Tolerances:Xyuas kom tseeb tias cov roj hmab molding kam rau ua (piv txwv li, ISO 3302-1 Class M2) ua raws li cov machining tolerances ntawm koj cov khoom siv hlau.
Kev Cai Seal Engineering ntawm Xiamen Zoo Tshaj Plaws
NtawmXiamen Qhov Zoo Tshaj Plaws, peb ua kom yooj yim cov txheej txheem xaiv foob los ntawm kev sib txuas cov ntaub ntawv kev tshawb fawb nrog lub ntiaj teb -chav tsim khoom:
- Hauv -Kev Sib Txuas Hauv Tsev:Peb cov kev cai- sib xyaw elastomers (xws li FKM, NBR, thiab EPDM) txhawm rau ntaus lub hom phiaj ntawm Shore A thiab cov kua dej sib xws.
- IATF 16949 Ntawv Pov Thawj Zoo:Peb cov ntsaws ruaj ruaj tsheb yog tsim nyob rau hauv nruj SPC tswj, txhawb nqa los ntawm tag nrho cov ntaub ntawv PPAP Qib 3.
- Prototyping thiab validation:Peb muab cov cuab yeej siv sai sai los tsim cov khoom siv sim, tso cai rau cov kws ua haujlwm kom siv tau cov txheej txheem compression thiab xau tsis kam nyob rau hauv qhov tiag - lub ntiaj teb sib dhos.
🛠️ Tshawb Nrhiav Cov Lus Qhia Txog Cov Khoom Siv:
- FKM vs EPDM Tshuaj Tiv Thaiv: Ib tug tob tob rau hauv tshuaj compatibility.
- Phau Ntawv Qhia Txog Roj Hmab Seal Certifications: Kawm txog IATF 16949, REACH, thiab RoHS ua raws.
- Automotive Roj Hmab Bushings: Tshawb xyuas peb cov kev cai ncua kev kawm ntawv thiab kev daws teeb meem.
Tawm tsam kom nrhiav tau lub foob zoo rau qhov siab -qhov kub thiab txias ntawm daim ntawv thov kua nplaum?Hu rau Xiamen Best Seal hnub norau kev txhawb nqa engineering, cov lus pom zoo sib xyaw, thiab cov cuab yeej sib tw sib tw.
• Xiamen Qhov Zoo Tshaj Plaws • Siab -Kev Ua Haujlwm Zoo Tshaj Plaws Hauv Tsheb •
