Taw qhia
Roj hmab ntsaws ruaj ruaj yog siv nyob rau hauv ntau yam ntawm cov tshuab thiab cov cuab yeej siv kom tsis txhob muaj kuab paug sab nraud thaum tseem tswj lub cuab yeej lub siab thiab kub. Raws li kev tshawb fawb thiab thev naus laus zis ua ntej, cov cuab yeej precision txhim kho, thiab cov kev cai rau cov roj hmab ntsaws ruaj ruaj tau nce ntxiv. Roj hmab foob, thaum xaiv thiab ntsia tau zoo, tuaj yeem ua rau cov khoom ruaj khov thiab ua kom nws lub neej ua haujlwm ntev.
1 Dab tsi yogroj hmab foob?
Cov roj hmab ntsaws ruaj ruaj yog tsim los ntawm cov ntaub ntawv elastic (xws li roj hmab ntuj, hluavtaws roj hmab, silicone) thiab siv rau hauv cov khoom siv sib txuas ntawm cov khoom siv los tiv thaiv cov kua, roj, lossis cov khoom xau lossis nkag mus. Cov ntsaws ruaj ruaj no feem ntau siv rau hauv bearings, twj, li qub, pipelines, cav, thiab lwm yam khoom siv, thiab lawv yog ib qho tseem ceeb hauv kev ua kom cov khoom siv tau zoo thiab nyab xeeb.
2 Hom roj hmab foob
- O-ringsyog cov ntsaws ruaj ruaj uas nquag pom nyob rau hauv hydraulic thiab pneumatic systems. Compression tsim ib lub foob, thiab nws yog haum rau ob qho tib si zoo li qub thiab dynamic sealing tej yam kev mob.
- U-khob: Feem ntau yog siv rau piston seals hauv hydraulic systems, nws tuaj yeem ua haujlwm siab thiab siv dav hauv cov tshuab hnyav thiab cov khoom siv hydraulic.
- Flat sealing gaskets yog siv los kaw cov khoom flanges thiab lwm yam kev sib txuas.
- V-hom seals yog dav siv nyob rau hauv rotating ncej ntsaws ruaj ruaj nyob rau hauv lub tsheb thiab engineering machinery vim lawv siab hnav tsis kam thiab sealing zoo.
3 Yuav ua li cas xaiv cov roj hmab foob?
Qhov kev xaiv ntawm cov roj hmab ntsaws ruaj ruaj yuav cuam tshuam rau cov khoom siv ruaj khov thiab kav ntev. Kev txiav txim siab tsim nyog cov ntsaws ruaj ruaj tuaj yeem ua rau cov cuab yeej ua haujlwm tau zoo thiab tiv thaiv kev ua tsis tiav thiab kev poob qis los ntawm kev sib khi tsis raug.
Qhov kub ntawm qhov chaw ua haujlwm
Cov khoom siv roj hmab sib txawv ua haujlwm sib txawv hauv qhov kub thiab txias. Piv txwv li, Silicone seals tuaj yeem tiv taus qhov kub thiab txias, tab sis fluororubber tuaj yeem tiv taus qhov kub thiab txias thiab tshuaj lom neeg. Nyob rau hauv qhov kub thiab txias, yuav tsum tau siv cov ntsaws ruaj ruaj siab los yog qis.
Hom kev ua haujlwm nruab nrab
Cov xov xwm tiv tauj, xws li roj, kua qaub, alkali, lossis roj, kuj yuav tsum tau txiav txim siab thaum xaiv cov roj hmab foob. Qee cov khoom siv roj hmab, xws li fluororubber (FKM) thiab chloroprene roj hmab (CR), tuaj yeem tiv taus cov tshuaj yaig, yog li cov khoom siv thiab kev tshaj tawm yuav tsum tau txiav txim siab thaum xaiv.
Kev ua haujlwm siab thiab sealing kev ua haujlwm xav tau
Sealing kev ua tau zoo yuav tsum sib txawv nyob ntawm cov khoom siv. Qee cov khoom siv yuav tsum tswj cov kev kub ntxhov siab dua (piv txwv li, hydraulic systems), yog li yuav tsum siv cov ntaub ntawv sib khi kom muaj zog. Polytetrafluoroethylene (PTFE) thiab fluororubber, piv txwv li, muaj cov khoom zoo tshaj plaws los tiv thaiv kev tawm hauv qhov chaw siab.
Mechanical load thiab vibration tej yam kev mob
Cov ntsaws ruaj ruaj yuav tsum yog elastic thiab hnav resistant nyob rau hauv daim ntawv thov uas muaj cov neeg kho tshuab siab loads. Ntau cov khoom siv vibrate thaum ua haujlwm. Xaiv cov roj hmab ntsaws ruaj ruaj uas tiv taus kev co tuaj yeem pab ua kom cov khoom ruaj khov.
Qhov loj ntawm qhov chaw installation
Qhov loj, daim ntawv, thiab qhov chaw teeb tsa kev txwv ntawm lub foob yuav cuam tshuam rau txoj kev xaiv lub foob. Yuav kom ua tau zoo, cov roj hmab foob yuav tsum haum rau cov khoom siv.
4 Cov lus qhia kev txhim kho rau cov roj hmab foob
Ntxuav lub installation nto
Ua ntej haum cov roj hmab foob, ntxuav qhov chaw teeb tsa kom tshem tawm cov roj, plua plav, lossis khib nyiab. Cov teeb meem txawv teb chaws tuaj yeem cuam tshuam nrog lub foob kev teeb tsa, ua rau muaj kev sib khi tsis zoo lossis puas tsuaj.
Tsis txhob ncab ntau dhau los yog twisting
Thaum lub sij hawm installation, cov roj hmab foob yuav tsum tsis txhob distorted. Kev ncab ntau dhau, twisting, lossis compression tuaj yeem ua rau lub foob tsis muaj zog thiab cuam tshuam nws txoj haujlwm.
Siv cov cuab yeej tshwj xeeb
Qee cov ntsaws ruaj ruaj xav tau cov cuab yeej tshwj xeeb rau kev teeb tsa. Piv txwv li, thaum txhim kho U-shaped lossis V-shaped sealing, siv lub sealing cuab yeej los thawb lub foob kom tiv thaiv kev teeb tsa tsis raug.
Xyuas cov kev taw qhia ntawm lub foob
U-shaped thiab V-shaped seals muaj cov lus pom zoo rau kev teeb tsa tshwj xeeb. Yuav kom ua tiav qhov zoo tshaj plaws sealing nyhuv, nruab lawv raws li cov khoom siv phau ntawv.
Txheeb xyuas qhov nruj ntawm lub foob
Tom qab txhim kho lub foob, xyuas kom meej tias tag nrho cov fastening daim (xws li flanges thiab screws) raug fastened kom zoo los tiv thaiv loosening thiab to.
Tsis txhob compression ntau dhau
Kev siv ntau dhau ntawm lub foob thaum lub sijhawm teeb tsa tsis pom zoo. Compression ntau dhau tuaj yeem txo qhov kev sib khi yooj yooj yim thiab ua rau muaj kev laus ntxov ntxov.
5 Kev tu thiab tshuaj xyuas cov roj hmab foob
Qhov tsis tu ncua uas cov roj hmab ntsaws ruaj ruaj thiab tshuaj xyuas txiav txim siab lawv lub neej kev pabcuam. Kev tshuaj xyuas tsis tu ncua ntawm cov roj hmab ntsaws ruaj ruaj, kuaj xyuas thiab daws teeb meem, tuaj yeem txuas ntxiv lawv lub neej kev pabcuam.
Tsis tu ncua xyuas qhov hnav ntawm cov ntsaws ruaj ruaj
Roj hmab foob tuaj yeem hnav thiab muaj hnub nyoog dhau lub sijhawm vim kev siv ntau ntxiv. Xyuas cov ntsaws ruaj ruaj tsis tu ncua rau cov kab nrib pleb, hardness, thiab lwm yam teeb meem kev laus, thiab hloov lawv raws li xav tau.
Txheeb xyuas qhov nruj ntawm lub foob
Tshawb xyuas cov txiv ntseej xoob, bolts, thiab lwm yam fasteners nyob ib puag ncig lub foob. Looseness yuav ua rau lub foob poob nws cov sealing zoo, ua rau cov khoom siv tsis ua haujlwm.
Hloov cov roj hmab ntsaws ruaj ruaj tsis tu ncua
Roj hmab foob yuav tsum tau hloov tsis tu ncua, nyob ntawm seb cov khoom siv li cas. Yog tias nws pom tias lub foob tsis tuaj yeem rov ua nws qhov elasticity thiab sealing nyhuv, nws yuav tsum tau hloov tam sim ntawd kom tsis txhob muaj teeb meem hauv cov khoom siv.