Dab tsi yog qee yam tseem ceeb uas yuav tsum tau xav txog thaum xaiv cov khoom foob raug cai rau daim ntawv thov?
Tus nqi zoo thiab cov xim tsim nyog
Muaj cov ntsaws ruaj ruaj
Txhua yam cuam tshuam rau hauv lub kaw lus sealing: xws li qhov kub thiab txias, kua thiab siab
Cov no yog txhua yam tseem ceeb uas yuav tsum tau xav txog hauv koj qhov system sealing. Yog tias txhua yam paub txog, nws yuav yooj yim xaiv cov khoom siv zoo.
Tab sis qhov yuav tsum tau ua ua ntej yog cov khoom siv yuav tsum tau ruaj khov. Yog li thawj qhov yuav tsum tau xav txog yog kev ua haujlwm zoo. Cia peb pib nrog qhov ua tau zoo.
Lub neej ntawm lub neej thiab tus nqi yog qhov tseem ceeb (Tiv tauj peb - Tianjin Tanggu Water-Seal Valve Co., Ltd) xav txog. Txhua yam yuav cuam tshuam rau koj daim ntawv thov kev ua haujlwm. Nws yog ib qho tseem ceeb uas yuav tau xav txog cov qauv tsim raws li daim ntawv thov. Qhov no suav nrog cov khoom siv, cov duab kho vajtse thiab cov txheej txheem tsim khoom. Kuj tseem muaj ib puag ncig los xav txog xws li: siab, kub, sijhawm, sib dhos thiab xov xwm.
elastomer
Elastomers yog nrov rau lawv cov elasticity zoo. Tsis muaj lwm yam khoom muaj tib theem ntawm elasticity.
Lwm cov ntaub ntawv xws li polyurethanes thiab thermoplastics muaj ntau yam resistant rau siab tshaj elastomers.
Cov khoom siv roj hmab tuaj yeem siv rau ntau yam kev siv sib txawv.
Cov khoom tseem ceeb ntawm cov tshuab muaj xws li
elasticity
tawv
tensile zog
Lwm yam tseem ceeb muaj xws li
•Compression teeb
•kub tsis kam
•tsis kub hloov tau yooj yim
•tshuaj compatibility
•Anti-aging
•abrasion tsis kam
Qhov tseem ceeb tshaj plaws yog qhov elasticity ntawm cov khoom siv roj hmab. Cia peb kawm ntxiv txog qhov no.
Elasticity yog qhov tshwm sim ntawm vulcanization. Cov ntaub ntawv elastomeric, xws li cov roj hmab vulcanized, yuav rov qab mus rau lawv cov duab qub yog tias deformed.
Inelastic cov ntaub ntawv, xws li unvulcanized roj hmab, yuav tsis rov qab mus rau lawv cov qub lub xeev yog deformed. Vulcanization (xws liob flange npauj npaim valve) yog txheej txheem ntawm kev hloov roj hmab rau hauv cov khoom siv elastomeric.
Kev xaiv ntawm elastomers feem ntau yog nyob ntawm:
•thaj tsam ntawm kev ua haujlwm kub
•Tsis kam ua kua thiab roj
•Tiv thaiv huab cua, ozone thiab UV rays
Kev xaiv ntawm elastomers feem ntau yog nyob ntawm:
•thaj tsam ntawm kev ua haujlwm kub
•Tsis kam ua kua thiab roj
•Tiv thaiv huab cua, ozone thiab UV rays
Rau yam uas yuav tsum tau xav txog thaum xaiv valve sealing nto cov ntaub ntawv
Lub sealing nto yog qhov tseem ceeb tshaj plaws ua hauj lwm nto ntawm lubvalve, qhov zoo ntawm sealing nto ncaj qha cuam tshuam rau lub neej kev pab cuam ntawm lubvalve, thiab cov khoom ntawm lub sealing nto yog ib qho tseem ceeb los xyuas kom meej qhov zoo ntawm sealing nto. Yog li, cov hauv qab no yuav tsum tau txiav txim siab thaum xaiv lub valve sealing nto khoom:
①Corrosion kuj. "Corrosion" yog txheej txheem nyob rau hauv qhov chaw ntawm lub sealing nto yog puas nyob rau hauv qhov kev txiav txim ntawm nruab nrab. Yog hais tias qhov chaw ntawm lub sealing nto yog corroded, lub sealing kev ua tau zoo tsis tuaj yeem lav, yog li cov khoom ntawm sealing nto yuav tsum yog corrosion-resistant. Kev tiv thaiv corrosion ntawm cov khoom siv feem ntau yog nyob ntawm qhov muaj pes tsawg leeg ntawm cov khoom thiab nws cov tshuaj lom neeg ruaj khov.
②Anti-abrasion. "Scratch" yog hais txog kev puas tsuaj los ntawm kev sib txhuam ntawm cov khoom thaum lub sij hawm tus txheeb ze txav ntawm lub sealing nto. Hom kev puas tsuaj no yuav ua rau muaj kev puas tsuaj rau lub sealing nto. Yog li ntawd, cov khoom siv sealing nto yuav tsum muaj cov khoom zoo los tiv thaiv khawb, tshwj xeeb tshaj yog rau cov rooj vag li qub. Kev khawb tsis kam ntawm cov khoom siv feem ntau txiav txim siab los ntawm cov khoom sab hauv ntawm cov khoom.
③Erosion kuj. "Erosion" yog cov txheej txheem ntawm kev rhuav tshem qhov chaw sib khi thaum nruab nrab ntws los ntawm qhov chaw sib khi ntawm kev kub ceev. Qhov kev puas tsuaj zoo li no yog pom tseeb dua ntawm cov throttle li qub thiab kev nyab xeeb li qub siv nyob rau hauv qhov kub thiab txias thiab siab siab chav xov xwm, thiab muaj kev cuam tshuam zoo rau kev puas tsuaj ntawm sealing kev ua tau zoo. Yog li ntawd, kev yaig kuj tseem yog ib qho tseem ceeb ntawm cov khoom siv sealing nto.
④Nws yuav tsum muaj ib qho hardness, thiab hardness yuav poob zoo heev nyob rau hauv lub teev ua hauj lwm kub.
⑤Lub linear expansion coefficient ntawm sealing nto thiab cov khoom siv lub cev yuav tsum zoo sib xws, uas yog qhov tseem ceeb tshaj rau cov qauv ntawm lub nplhaib sealing, kom tsis txhob muaj kev ntxhov siab ntxiv thiab xoob ntawm qhov kub thiab txias.
⑥Siv nyob rau hauv qhov kub thiab txias, yuav tsum muaj txaus los tiv thaiv oxidation, thermal qaug zog tiv thaiv thiab thermal voj voog teeb meem.
Raws li qhov xwm txheej tam sim no, nws tsis yooj yim los nrhiav cov khoom siv sealing uas ua tau raws li qhov xav tau saum toj no. Peb tsuas tuaj yeem tsom mus ua kom tau raws li qhov yuav tsum tau ua ntawm qee yam raws li ntau hom valve thiab siv. Piv txwv li, li qub siv nyob rau hauv high-ceev xov xwm yuav tsum tau them tshwj xeeb mloog mus rau lub yaig kuj yuav tsum tau ntawm lub sealing nto; thiab thaum nruab nrab muaj cov khoom impurities, lub sealing nto cov khoom uas muaj zog dua yuav tsum tau xaiv.
Post lub sij hawm: Mar-08-2023
