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Kub kub PTFE gasket durability?
2026-02-10 IB
Cia peb ua tiag tiag, thaum ib tug neeg nug txog lub siab kub PTFE gasket durability, lawv feem ntau yog picturing lub khawv koob foob uas tuav 500 ° F mus ib txhis. Nov yog thawj qhov chaw uas peb tau nce mus. PTFE zoo heev, tab sis siab kub yog txheeb ze, thiab kav ntev nyob ntawm seb koj tab tom thov nws ua dab tsi. Puas yog nws txuas ntxiv thermal cycling? Puas muaj tshuaj lom neeg nyob rau saum lub tshav kub? Los yog nws tsuas yog zoo li qub, kub flange? Cov lus teb hloov txhua yam.
Lub Siab Temp Misconception thiab Material Reality
Ntshiab PTFE pib nkag mus rau saum 400 ° F (ib ncig 204 ° C). Koj tuaj yeem pom cov ntaub ntawv hais tias nws siv tau txog 500 ° F (260 ° C), thiab technically, nws yuav tsis yaj tam sim ntawd. Tab sis ntawm cov kev txwv saum toj no, nws lub cev muaj zog soften. Lub gasket tuaj yeem txias txaus, txhais tau tias nws maj mam deforms nyob rau hauv bolt load, ua rau kom muaj kev ntxhov siab so thiab nws thiaj li to. Yog li, durability ntawm 250 ° C yog ib lo lus nug ntawm lub sij hawm thiab siab, tsis yog ib qho yooj yim yog / tsis.
Kuv nco qab txog ib qhov project ntawm cov kab tshuaj lom neeg nrog kev sib cais chav huv. Qhov kub yuav nce mus txog 230 ° C rau lub sijhawm luv. Peb siv a PTFE gasket, thiab nws ua haujlwm… li ntawm peb lub hlis. Tom qab ntawd cov dej xau pib ntawm qhov bolts. Qhov teeb meem tsis yog qhov kub siab tshaj plaws rau ib tus se, tab sis qhov rov qab thermal cycles ua ke nrog flange rotation thaum bolting. Cov ntaub ntawv poob nws resilience.
Yog vim li cas cov qhab nia PTFE tau sau rau hauv kev ua si. Cov ntaub ntawv zoo li iav-filled lossis carbon-filled PTFE txhim kho creep kuj tseem ceeb. Lawv tuaj yeem tuav cov khoom siv ntau dua ntawm qhov kub siab, ua rau lub neej ua haujlwm ntev. Tab sis txawm li ntawd los, koj pauv qee qhov ntshiab PTFE cov tshuaj tiv thaiv zoo heev. Nws yeej ib txwm muaj kev sib haum xeeb.
Kev Ua Tsis Taus Koj Tsuas Kawm Los Ntawm Kev Pom
Dhau li creep, tus tua neeg loj yog thermal degradation. Kev raug ncua ntev ntawm qhov kawg ntawm qhov kub thiab txias ua rau PTFE ua nkig. Nws tsis yaj; nws pib tawg, tshwj xeeb tshaj yog thaum kaw thaum tej yam txias. Koj yuav pom lub gasket tawg ua tej daim thaum koj qhib lub flange.
Lwm qhov hloov maj mam yog qhov flange nto tiav. Ntawm cov kev pabcuam kub kub, ib qho serrated tiav yuav raug teev kom zoo dua tom. Tab sis nrog cov khoom muag zoo li PTFE, cov serrations tuaj yeem txiav rau hauv lub gasket lub sij hawm, tshwj xeeb tshaj yog thaum lub sij hawm thermal expansion/contraction cycles. Kuv tau hloov mus rau lub kauv-qhov txhab gasket nrog PTFE muab tub lim rau cov xwm txheej zoo li no, qhov twg cov hlau windings coj cov neeg kho tshuab tom, thiab PTFE muab lub foob. Zoo dua durability.
Siab yog lwm ib nrab ntawm qhov sib npaug. Ib qhov kub-kub, tsis tshua muaj cua kub kab yuav cia PTFE gasket xyoo tas los. Qhov kub tib yam nrog kev kub siab sab hauv, tshwj xeeb tshaj yog tias nws yog cyclic, yuav ua rau nws lub neej luv heev. Lub load ntawm lub ntsej muag gasket yog hloov pauv tas li, ua haujlwm ntawm cov khoom siv.
Tswv yim xaiv thiab installation Pitfalls
Gasket thickness tseem ceeb tshaj li cov neeg xav. Rau high-temps apps, kuv nyiam mus thinner. Lub 1.5mm gasket muaj cov khoom siv tsawg dua los nkag thiab distort dua li 3 hli. Nws kuj yuav tsum tau ntau dua bolt load rau ntim thawj zaug, uas ua rau qhov tseem ceeb tshaj plaws: txheej txheem bolting.
Yog tias koj tsis tau txais lub ntsia liaj qhov rooj txij thaum pib, tsis nco qab txog lub sijhawm ntev siab kub kev ua tau zoo. Nyob rau hauv-torquing, thiab thawj lub foob tsis zoo. Tshaj-torquing, thiab koj tau compressed lub PTFE tshaj li rov qab, accelerating creep. Kev siv lub calibrated torque ciaj ntswj thiab ib qho kev sib dhos kom zoo sib xws tsis yog kev xyaum zoo xwb; nws yog qhov sib txawv ntawm lub gasket kav ib xyoos lossis peb.
Peb kawm qhov no txoj kev nyuaj ntawm lub txhab nyiaj ntawm cov khoom siv hluav taws xob. Pab neeg saib xyuas tau siv qhov cuam tshuam rau kev ceev. Cov gaskets (ib hom PTFE reinforced) tawg tawm hauv lub lis piam ntawm kev ua haujlwm kub. Qhov tsis sib xws, hnyav dhau los tsim cov ntsiab lus kev ntxhov siab hauv cheeb tsam uas cov cua sov ua tiav.
Thaum Yuav Siv Nws Thiab Thaum Yuav Taug Kev
Yog li, qhov twg yog qhov kub siab PTFE gasket ua rau kev nkag siab? Rau kev pabcuam tas mus li, kuv yuav tsum ceev faj tshaj 200 ° C tshwj tsis yog tias nws yog qib puv thiab lub siab qis. Nws qhov chaw qab zib yog nyob rau hauv kev pabcuam corrosive qhov twg qhov kub thiab txias yog nruab nrab, tab sis cov tshuaj tau txiav txim tawm feem ntau elastomers. Piv txwv li, kub acid ntws ntawm 150-180 ° C.
Rau qhov tseeb qhov kub thiab txias, siab flanges, zoo li hauv lub zog tsim, koj tab tom saib graphite, kauv-qhov txhab, lossis lub nplhaib-hom pob qij txha. PTFE tsis yog tus neeg ua si nyob ntawd. Kuv tau pom specs los ntawm engineering tuam txhab uas muag dig muag hu rau PTFE rau corrosion kuj ntawm 280 ° C kab, thiab nws yog ib daim ntawv qhia rau ib tug kaw. Koj yuav tsum thawb rov qab nrog cov khoom txwv.
Qee zaum, kev daws teeb meem yog txheej. Ib qhov project kuv tau ua haujlwm nrog ib tus neeg muag khoom nyiam HANDAN ZITAI FREWER RAUG UA MOV., Ltd. (lawv nyob hauv Yongnian, lub hub loj loj hauv Hebei, koj tuaj yeem nrhiav tau ntawm Zitaifasteners.com) koom nrog tsis yog lub gasket nkaus xwb tab sis tag nrho cov bolting system. Peb xav tau cov bolts muaj zog uas tuaj yeem tswj xyuas qhov kub thiab txias kom lub PTFE gasket ua haujlwm. Nws yog ib qho system, tsis yog ib qho kev sib cais.
Lub Sijhawm Saib Xyuas Ntev thiab Lwm Txoj Haujlwm
Durability yog qhov kawg ntawm tag nrho cov nqi. Ib tug pheej yig PTFE gasket uas tsis nyob rau hauv 6 lub hlis nqi ntau dua nyob rau hauv lub zog thiab downtime dua ib tug kim dua kauv-qhov txhab gasket uas kav 5 xyoo. Koj yuav tsum tau ua qhov tseem ceeb ntawm kev saib xyuas lub sijhawm thiab qhov tseem ceeb ntawm txoj kab.
Rau kev hloov pauv hauv flanges uas twb muaj lawm, ib txwm ntsuas qhov sib txawv ntawm kev ua haujlwm kub yog tias koj tuaj yeem ua tau. qub flanges warp. Lub gasket koj nruab txias yuav tsum kaw kub, nyob rau hauv ib tug distorted geometry. Qee zaum, qhov kev xaiv ruaj khov tshaj plaws yog kho lub flange ua ntej.
Thaum kawg, teb yuam kom koj nug kaum ob nqe lus nug ntxiv. Dab tsi yog qhov ntsuas kub qhov profile? Qhov nruab nrab yog dab tsi? Dab tsi yog qhov flange mob thiab bolting? Tsis muaj ib lo lus teb, tsuas yog ib txheej ntawm kev lag luam tawm raws li kev paub dhau los - thiab qee zaum, ntawm kev ua tsis tiav yav dhau los. Lub hom phiaj tsis yog mus ib txhis; nws yog rau lub sijhawm kwv yees, txhim khu kev qha kev pabcuam uas koj tuaj yeem npaj ib puag ncig. Thiab rau qhov ntawd, kev nkag siab txog cov khoom siv lub ntiaj teb kev txwv yog tib yam uas ua haujlwm.
![[Daim Ntawv Ceeb Toom Txog Kev Xa Khoom] Anchor bolts tau raug xa mus rau Kaus Lim Qab Teb.](https://www.zitaifasteners.com/wp-content/uploads/Gasket-Series518-1.jpg)
Thov tso peb cov lus
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Tus kheej
Txoj Cai Tswjfwm Ntiag Tug
Peb Kev cog lus rau Kev Tiv Thaiv Tus Kheej
Taw qhia.
Rainbow Inc. lees paub qhov tseem ceeb ntawm kev tiv thaiv kev ceev ntiag tug ntawm txhua tus kheej cov ntaub ntawv muab los ntawm nws cov neeg siv khoom, suav nrog cov neeg siv ntawm www.rainbow-inkjet.com thiab lwm lub vev xaib sib koom nrog Rainbow Inc. (suav ua ke "Rainbow Inc. Sites"). Peb tsim cov txheej txheem hauv qab no nrog kev hwm rau peb cov neeg siv khoom txoj cai ntiag tug thiab vim tias peb muaj txiaj ntsig rau peb txoj kev sib raug zoo nrog peb cov neeg siv khoom. Koj qhov kev mus ntsib Rainbow Inc. Sites yog ua raws li Tsab Cai Tswjfwm Ntiag Tug no thiab peb Cov Cai thiab Cov Cai Online.
Kev piav qhia.
Nqe Lus Qhia Txog Tus Kheej no piav qhia txog hom ntaub ntawv uas peb sau thiab peb yuav siv cov ntaub ntawv li cas. Peb Daim Ntawv Ceeb Toom Tsis pub twg paub kuj piav qhia txog cov kev ntsuas uas peb ua los tiv thaiv kev ruaj ntseg ntawm cov ntaub ntawv no nrog rau seb koj tuaj yeem ncav cuag peb li cas los hloov kho koj cov ntaub ntawv tiv tauj.
Cov ntaub ntawv khaws cia
Cov ntaub ntawv tus kheej tau sau ncaj qha los ntawm cov qhua.
Rainbow Inc. sau cov ntaub ntawv tus kheej thaum: koj xa cov lus nug lossis lus rau peb; koj thov cov ntaub ntawv lossis cov ntaub ntawv; koj thov warranty los yog tom qab-warranty kev pab cuam thiab kev txhawb nqa; koj koom nrog hauv kev tshawb fawb; thiab los ntawm lwm txoj kev uas tej zaum yuav raug muab tshwj xeeb rau ntawm Rainbow Inc. Sites lossis hauv peb cov ntawv xov xwm nrog koj.
Hom Cov Ntaub Ntawv Tus Kheej.
Hom ntaub ntawv sau ncaj qha los ntawm tus neeg siv yuav suav nrog koj lub npe, koj lub tuam txhab lub npe, cov ntaub ntawv tiv tauj lub cev, chaw nyob, cov ntaub ntawv them nqi thiab xa khoom, e-mail chaw nyob, cov khoom koj siv, cov ntaub ntawv pej xeem xws li koj lub hnub nyoog, kev nyiam, thiab kev txaus siab thiab cov ntaub ntawv hais txog kev muag lossis kev teeb tsa ntawm koj cov khoom.
Cov ntaub ntawv tsis yog tus kheej tau sau cia.
Peb tuaj yeem sau cov ntaub ntawv hais txog koj kev cuam tshuam nrog Rainbow Inc. Cov chaw thiab cov kev pabcuam. Piv txwv li, peb tuaj yeem siv cov cuab yeej tshuaj ntsuam xyuas lub vev xaib ntawm peb lub xaib kom khaws cov ntaub ntawv los ntawm koj lub browser, suav nrog lub vev xaib koj tuaj, lub tshuab tshawb nrhiav thiab cov ntsiab lus koj siv los nrhiav peb lub xaib, thiab nplooj ntawv koj saib hauv peb qhov chaw. Tsis tas li ntawd, peb sau qee cov ntaub ntawv txheem uas koj tus browser xa mus rau txhua lub vev xaib uas koj mus ntsib, xws li koj qhov chaw nyob IP, hom browser, peev xwm thiab hom lus, koj qhov kev khiav haujlwm, sijhawm nkag mus thiab xa mus rau qhov chaw nyob hauv Web.
Cia thiab ua.
Cov ntaub ntawv tus kheej sau rau ntawm peb lub vev xaib yuav raug muab khaws cia thiab ua tiav hauv Tebchaws Meskas uas Rainbow Inc. lossis nws cov koom tes, koom tes sib koom tes, lossis cov neeg pabcuam thib peb tswj cov chaw.
Peb siv cov ntaub ntawv li cas
Kev pabcuam thiab kev lag luam.
Peb siv koj cov ntaub ntawv ntiag tug los xa cov kev pabcuam lossis ua tiav kev lag luam uas koj thov, xws li muab cov ntaub ntawv hais txog Rainbow Inc. cov khoom thiab cov kev pabcuam, kev txiav txim, teb cov lus thov kev pabcuam rau cov neeg siv khoom, pabcuam kev siv peb lub vev xaib, ua haujlwm hauv online, thiab lwm yam. Txhawm rau muab koj cov kev paub zoo sib xws hauv kev cuam tshuam nrog Rainbow Inc., cov ntaub ntawv sau los ntawm peb lub vev xaib tuaj yeem ua ke nrog cov ntaub ntawv peb sau los ntawm lwm txoj kev.
Kev tsim khoom.
Peb siv cov ntaub ntawv tus kheej thiab tsis yog tus kheej rau kev tsim cov khoom lag luam, suav nrog rau cov txheej txheem xws li lub tswv yim tsim, tsim khoom thiab txhim kho, nthuav dav engineering, kev tshawb fawb kev lag luam thiab kev lag luam tsom xam.
Txhim kho lub vev xaib.
Tej zaum peb yuav siv cov ntaub ntawv tus kheej thiab tsis yog tus kheej los txhim kho peb cov vev xaib (xws li peb cov kev ntsuas kev nyab xeeb) thiab cov khoom lag luam lossis cov kev pabcuam cuam tshuam, lossis ua kom peb cov vev xaib yooj yim siv los ntawm kev tshem tawm qhov xav tau rau koj rov nkag mus rau tib cov ntaub ntawv lossis los ntawm kev kho peb lub vev xaib rau koj qhov kev nyiam lossis kev nyiam.
Kev Lag Luam Kev Lag Luam.
Tej zaum peb yuav siv koj cov ntaub ntawv ntiag tug los qhia rau koj txog cov khoom lossis cov kev pabcuam muaj los ntawm Rainbow Inc. Thaum sau cov ntaub ntawv uas yuav raug siv los tiv tauj koj txog peb cov khoom thiab cov kev pabcuam, peb feem ntau muab sijhawm rau koj xaiv tsis tau txais kev sib txuas lus. Ntxiv mus, nyob rau hauv peb kev sib txuas lus email nrog koj peb yuav muaj xws li ib tug unsubscribe link tso cai rau koj kom tsis txhob xa cov hom kev sib txuas lus. Yog tias koj xaiv kom rho npe, peb yuav tshem koj ntawm cov npe cuam tshuam hauv 15 hnub ua haujlwm.
Kev cog lus rau Data Security
Kev ruaj ntseg.
Rainbow Inc. Corporation siv cov kev ceev faj tsim nyog los khaws cov ntaub ntawv tus kheej tshaj tawm rau peb kom nyab xeeb. Txhawm rau tiv thaiv kev nkag mus tsis raug cai, tswj xyuas cov ntaub ntawv raug, thiab xyuas kom muaj kev siv cov ntaub ntawv raug, peb tau muab cov txheej txheem tsim nyog ntawm lub cev, hluav taws xob, thiab kev tswj hwm los tiv thaiv thiab tiv thaiv koj cov ntaub ntawv ntiag tug. Piv txwv li, peb khaws cov ntaub ntawv tus kheej rhiab rau hauv computer systems uas muaj kev txwv tsis pub nkag mus rau hauv cov chaw uas muaj kev nkag tau tsawg. Thaum koj tsiv mus nyob ib ncig ntawm lub xaib uas koj tau nkag mus, lossis los ntawm ib lub xaib mus rau lwm qhov uas siv tib lub tshuab nkag mus, peb txheeb xyuas koj tus kheej los ntawm kev siv cov kua nplaum uas tau muab tso rau hauv koj lub tshuab. Txawm li cas los xij, Rainbow Inc. Corporation tsis lav qhov kev ruaj ntseg, raug lossis ua tiav ntawm cov ntaub ntawv lossis cov txheej txheem.
Internet.
Kev xa cov ntaub ntawv hauv internet tsis muaj kev nyab xeeb kiag li. Txawm hais tias peb ua qhov zoo tshaj plaws los tiv thaiv koj cov ntaub ntawv ntiag tug, peb tsis tuaj yeem lav qhov kev ruaj ntseg ntawm koj cov ntaub ntawv ntiag tug xa mus rau peb Lub Vev Xaib. Txhua qhov kev xa xov ntawm tus kheej yog nyob ntawm koj tus kheej txaus ntshai. Peb tsis muaj lub luag haujlwm rau kev hla ntawm ib qho chaw ntiag tug lossis kev tiv thaiv kev nyab xeeb uas muaj nyob rau ntawm Rainbow Inc. Sites.
Tiv Tauj Peb
Yog tias koj muaj lus nug txog daim ntawv qhia tsis pub lwm tus paub, peb tuav koj cov ntaub ntawv ntiag tug, lossis koj txoj cai ntiag tug raws li txoj cai lij choj, thov hu rau peb ntawm kev xa ntawv ntawm qhov chaw nyob hauv qab no.
Rainbow Inc.
Tom ntej: Katherine Tan
Ntxiv: No.1658 Husong Road, Shanghai, Suav teb.
Nqe lus hloov tshiab
Kev kho dua.
Rainbow Inc. muaj txoj cai los hloov cov lus qhia tsis pub lwm tus paub ib ntus. Yog tias peb txiav txim siab hloov peb Cov Lus Qhia Tsis Pub Leej Twg Paub, peb yuav tshaj tawm Tsab Ntawv Tshaj Tawm ntawm no.
Hnub tim.
Tsab ntawv tshaj tawm tsis pub twg paub no tau hloov kho zaum kawg rau lub Cuaj Hlis 7, 2022.