Rubber Washer Performance Testing and Maintenance Guide
Rubber washers yog siv dav hauv cov pob qij txha, cov kav dej, thiab cov khoom siv sib dhos los muab kev sib khi, kev co damping, thiab kev faib khoom. Txawm li cas los xij, kev sim tsis raug lossis kev saib xyuas tsis zoo tuaj yeem ua rau cov dej xau, xoob, thiab ua tsis tiav ntxov. Phau ntawv qhia no tsom rau covcov kev ntsuam xyuas tseem ceebuas txiav txim siab washer zoo thiabkev saib xyuas zoo tshaj plawskom ntev kev pab cuam lub neej.
1. Kev ua haujlwm tseem ceeb ntawm cov tshuab ntxhua khaub ncaws
- Sealing muaj peev xwmnyob rau hauv bolt preload
- Elastic rov qabtom qab compression
- Kev tawm tsam rau kev tshaj tawm(dej, roj, tshuaj)
- Dimensional stabilitydhau sijhawm
- Durabilitynyob rau hauv kub thiab vibration
Engineering Insight:Tsis zoo li O-rings, roj hmab ntxhua khaub ncaws hnyav hnyav rau ntawm cov ntsia hlau thauj khoom. Lawv qhov kev ua tau zoo cuam tshuam los ntawm cov khoom siv coj los ua raws li kev txhawb nqa.
2. Kev ntsuam xyuas qhov tseem ceeb rau cov tshuab ntxhua khaub ncaws
2.1 Compression Set Test
Lub hom phiaj:Ntsuam xyuas lub tshuab ntxhua khaub ncaws kom rov ua kom tuab tom qab ntev - lub sij hawm compression.
Compression Set (%)=(H₀ − H₂) / (H₀ − H₁) × 100
- Tus nqi qis dua=zoo dua sealing
- Qhov tseem ceeb rau static bolted pob qij txha
2.2 Hardness (Shore A) Test
- Ntsuas tsis kam rau indentation
- Muaj feem xyuam rau lub zog sealing thiab extrusion tsis kam
- Hom ntxhua khaub ncaws: 50-80 Ntug A
Nco tseg:Cov hardness ntau dhau yuav txo qhov ua tau raws li qhov chaw flange thiab tuaj yeem ua rau micro- leakage.
2.3 Tensile zog & elongation
Cov kev ntsuam xyuas no ntsuas cov khoom siv ncaj ncees thaum lub sijhawm teeb tsa thiab kev pabcuam:
- Tiv thaiv kev tawg thaum lub sij hawm bolt zawm
- Indicates compound zoo thiab aging kuj
2.4 Cov kua dej & tshuaj lom neeg ua haujlwm
| Nruab nrab | Khoom siv pom zoo | Ntsuas tsom |
|---|---|---|
| Dej / Chav | EPDM | o, hardness hloov |
| Roj / Roj | NBR, HNBR | Hloov ntim |
| Tshuaj | FKM, FKM | Mass & tensile tuav |
2.5 Kev laus & Kub ua haujlwm
- Thaum tshav kub kub laus (70-150 degree)
- Ozone thiab UV raug
- Hardness thiab compression teeb hloov tom qab kev laus
3. Hom Kev Ua Tsis Zoo ntawm Cov Roj Hmab Washer
- Permanent flattening vim siab compression teeb
- Deg tawg los ntawm ozone los yog tshav kub laus
- o lossis softening vim cov kua dej tsis sib haum
- Cov dej xau los ntawm bolt so
Keeb kwm:Feem ntau cov tshuab ntxhua khaub ncaws tsis ua haujlwm yog cov khoom siv - cov teeb meem xaiv es tsis yog qhov tsis xws luag.
4. Roj Hmab Washer Kev Kho Kom Zoo Tshaj Plaws
4.1 Cov Txheej Txheem Txhim Kho
- Tsis txhob dhau -tightening bolts
- Xyuas kom du, huv si mating nto
- Siv cov tshuab ntxhua khaub ncaws uas tsim nyog rau sab hauv / sab nraud kom haum
4.2 Kev soj ntsuam ib ntus
- Tshawb xyuas qhov hardening lossis tawg
- Tshawb xyuas qhov to los yog loosening
- Hloov cov tshuab ntxhua khaub ncaws thaum lub sijhawm tu
4.3 Cia & tuav
- Khaws kom deb ntawm tshav kub thiab ncaj qha tshav ntuj
- Tsis txhob sib cuag nrog cov roj lossis cov kuab tshuaj tshwj tsis yog siv tau
- Tsis txhob muab tso rau hauv cov khoom hnyav
Cov Lus Qhia Txog Kev Kho Mob:Hloov cov nqi qis- tus nqi ntxhua khaub ncaws tuaj yeem tiv thaiv cov nqi qis qis.
Xaus
Kev ntsuas kev ua tau zoo thiab kev saib xyuas zoo yog qhov tseem ceeb rau kev ua kom muaj kev ntseeg siab ntawm lub tshuab ntxhua khaub ncaws. Cov txheej txheem compression, hardness, tshuaj tiv thaiv, thiab kev laus tus cwj pwm yuav tsum tau soj ntsuam ua ke kom ua tiav qhov ruaj khov ntev -lub sij hawm sealing kev ua tau zoo.
