1. Kev Taw Qhia:PTFEua tus Hloov Kev Ua Si hauv Valve Technology
Cov li qub yog cov khoom tseem ceeb hauv cov txheej txheem tswj cov kua dej, qhov twg kev ua tau zoo cuam tshuam ncaj qha rau kev nyab xeeb, kev ua haujlwm zoo, thiab cov nqi ua haujlwm. Txawm hais tias cov hlau xws li stainless hlau lossis alloys feem ntau tau tswj hwm kev tsim kho li qub, lawv tawm tsam nrog kev xeb, hnav, thiab kev saib xyuas ntau hauv cov chaw ua haujlwm hnyav.Polytetrafluoroethylene (PTFE), ib qho fluoropolymer ua tau zoo heev, tau txhais dua qhov tsim valve los ntawm kev daws cov kev txwv no. Nws cov khoom tshwj xeeb - kev tsis muaj zog tshuaj lom neeg, kev tiv taus kub, thiab kev ua kom lubrication tus kheej - ua rau cov valve ua haujlwm tau zoo hauv kev siv corrosive, high-purity, lossis kub heev. Tsab xov xwm no tshawb nrhiav seb PTFE ua kom lub valve ua haujlwm zoo li cas thoob plaws kev lag luam, los ntawm kev ua tshuaj lom neeg mus rau kev tshuaj, thiab nws lub luag haujlwm hauv kev tsav tsheb tshiab hauv kev siv tshuab sealing thiab kev tshawb fawb khoom siv.
2. PTFE daws cov teeb meem tseem ceeb ntawm lub valve li cas
PTFE cov qauv molecular, uas muaj cov pa roj carbon-fluorine sib txuas ua ke, muab cov khoom sib xyaw ua ke uas kov yeej cov teeb meem valve feem ntau:
Kev Tsis Muaj Tshuaj Lom Zem: PTFE tiv taus yuav luag txhua yam tshuaj lom neeg, suav nrog cov kua qaub muaj zog (piv txwv li, sulfuric acid), alkalis, thiab cov kuab tshuaj organic. Qhov no tshem tawm cov xeb uas ua rau muaj kev xau, uas yog qhov teeb meem ntau zaus hauv cov hlau li qub.
Kev kam rau siab kub dav: Nrog rau ntau yam kev ua haujlwm ntawm -200 ° C txog + 260 ° C, PTFE tswj kev ywj pheej hauv kev siv cryogenic thiab kev ruaj khov hauv cov pa kub siab, txo qhov tsis ua haujlwm ntawm lub valve hauv kev caij tsheb kauj vab thermal.
Kev Sib Txhuam Qis thiab Qhov Nto Tsis Lo: PTFE tus coefficient ntawm kev sib txhuam (~ 0.04) txo qhov kev ua haujlwm torque thiab tiv thaiv cov khoom siv sib sau ua ke (piv txwv li, polymers lossis siv lead ua), ua kom muaj kev ua haujlwm zoo hauv cov xov xwm viscous lossis slurry.
Kev Ua Phem Tsis Muaj Peev Xwm: Ua ib yam khoom siv zoo, PTFE ua tau raws li cov qauv kev coj dawb huv rau cov tshuaj thiab kev ua zaub mov, zam kev ua qias tuaj ntawm cov khoom.
Cov cwj pwm no tso cai rau PTFE kom ntev lub neej ntawm lub valve los ntawm 3-5 zaug piv rau cov ntaub ntawv ib txwm muaj, thaum txo cov zaus txij nkawm thiab lub sijhawm tsis ua haujlwm.
3. Cov Kev Tsim Kho Tshiab Tseem Ceeb hauv PTFE-Based Valve Cheebtsam
3.1 Cov Txheej Txheem Sealing Siab Tshaj Plaws
PTFE hloov pauv lub valve sealing los ntawm kev tsim qauv uas them rau kev hnav thiab kev hloov pauv siab:
Cov PTFE Fillers Conical: Hloov cov pob V-zoo li qub, cov PTFE fillers conical nrog cov hlau tsis xeb ua kom muaj kev sib khi zoo. Nyob rau hauv lub siab sab hauv, tus qauv conical nruj nreem, tiv thaiv kev xau hauv cov ntawv thov siab.
Cov Txheej Txheem PTFE-Graphite Ntau Txheej: Hauv cov kav dej valve, cov txheej txheem PTFE-graphite composites tswj tau qhov ruaj khov ntawm cov foob thaum muaj qhov kub thiab txias hloov pauv. Cov txheej PTFE ua kom muaj kev tiv thaiv tshuaj lom neeg, thaum graphite ua rau muaj kev coj ua thermal conductivity, txo qhov kev tawg ntawm kev ntxhov siab.
3.2 Lub cev valve uas muaj kab
Rau kev tiv thaiv tag nrho cov kua dej sib cuag, cov li qub siv PTFE lining—ib txheej 2–5 hli uas sib txuas rau cov hlau li qub. Txoj hauv kev no cais cov khoom siv corrosive tawm ntawm cov hlau, uas yog qhov tseem ceeb rau kev tswj cov hydrochloric acid lossis cov tshuaj chlorine. Cov txheej txheem niaj hnub no, xws li isostatic molding, ua kom muaj kev npog sib npaug yam tsis muaj qhov sib txawv, uas yog qhov tseem ceeb rau kev tiv thaiv kev xeb hauv zos.
3.3 Sab Hauv Uas Muaj PTFE Txheej
Cov khoom xws li pob, discs, lossis diaphragms coated nrog PTFE muab cov hlau lub zog nrog fluoropolymer corrosion resistance. Piv txwv li, hauv pob valves, PTFE-coated pob ua tiav bubble-tight sealing (ISO 5208 Class VI) thaum tiv taus galvanic corrosion.
4. Kev Sib Piv Kev Ua Haujlwm: PTFE Valves vs. Conventional Valves
| Cov txheej txheem parameter | Cov Li Qub Hlau Ib Txwm | Cov Valves Uas Muaj PTFE Zoo |
| Kev Tiv Thaiv Tshuaj | Txwv rau cov kua qaub/alkalis me me; yooj yim rau kev tawg | Tiv taus 98% ntawm cov tshuaj lom neeg (tsis suav nrog cov hlau alkali molten) |
| Kev Siv Tau Ntev | 6-12 lub hlis nyob rau hauv cov xov xwm corrosive | 3–8 xyoos (100,000+ lub voj voog) vim yog PTFE uas tiv taus kev hnav |
| Kev Txij Nkawm Zaus | Kev tshuaj xyuas txhua peb lub hlis rau kev hloov lub foob | Kev kuaj xyuas txhua xyoo; PTFE cov khoom siv lubricating tus kheej txo qhov hnav |
| Kev Hloov Kho Kub | Yuav tsum muaj cov ntaub ntawv sib txawv rau kev siv cryogenic vs. kev siv kub siab | Ib yam khoom siv ua haujlwm tau ntawm -200 ° C txog + 260 ° C |
| Tag Nrho Tus Nqi ntawm Kev Muaj Tswv | Siab (hloov khoom ntau zaus + lub sijhawm tsis ua haujlwm) | Txo 40% dua li 5 xyoos vim yog kev ruaj khov |
5. Kev Cuam Tshuam Thoob Plaws Kev Lag Luam ntawm PTFE Valve Solutions
Kev Ua Tshuaj: PTFE-lined pob li qub hauv cov kav dej sulfuric acid txo cov xwm txheej xau kom ze rau xoom, uas yog qhov tseem ceeb rau kev ua tau raws li cov qauv kev nyab xeeb ib puag ncig.
Cov Tshuaj: PTFE diaphragms hauv cov li qub sterile tiv thaiv microbial adhesion, uas yog qhov tseem ceeb rau kev ua raws li GMP thiab FDA cov cai.
Kev Kho Mob Zog thiab Dej: Cov li qub npauj npaim uas kaw los ntawm PTFE hauv cov tshuab cua txias tiv taus kev sib tsoo thiab kev raug tshuaj chlorine, uas txiav kev poob zog los ntawm kev tiv taus dej ntws los ntawm 30%.
Kev Tsim Khoom Siv Semiconductor: Cov khoom PTFE uas muaj kev ntshiab siab tiv thaiv kev ua qias tuaj ntawm cov ionic hauv cov dej ntshiab heev thiab cov txheej txheem xa roj.
6. Cov Qauv Yav Tom Ntej: Kev Sib Koom Tes PTFE Ntse thiab Kev Ruaj Ntseg
PTFE lub luag haujlwm txuas ntxiv mus raws li kev lag luam xav tau:
Kev Sib Xyaws PTFE Uas Ruaj Khov: Cov khoom siv PTFE rov ua dua tshiab khaws tau 90% ntawm cov khoom siv tshiab thaum txo cov teeb meem ib puag ncig.
Cov Li Qub Uas Siv IoT: Cov Sensors uas muab tso rau hauv PTFE cov ntsaws ruaj ruaj saib xyuas kev hnav thiab kev xau hauv lub sijhawm tiag tiag, uas ua rau muaj kev txij nkawm kwv yees tau thiab txo qis lub sijhawm tsis tau npaj tseg.
Cov Khoom Siv Sib Xyaws: PTFE-PEEK composites rau cov xwm txheej hnyav (piv txwv li, nuclear valves) ua ke lubrication nrog kev ua haujlwm ruaj khov, uas thawb cov ciam teb ntawm kev siab thiab kub.
7. Xaus lus
PTFE tau txhim kho cov thev naus laus zis valve los ntawm kev daws teeb meem ntev hauv kev xeb, kev sib txhuam, thiab kev tswj kub. Nws kev koom ua ke rau hauv cov foob, cov ntaub, thiab cov txheej txheem sib xyaw ua kom ntseeg tau tias muaj kev ntseeg siab thoob plaws ntau yam lag luam, los ntawm cov nroj tsuag tshuaj mus rau cov chaw tsim khoom semiconductor. Raws li kev tshawb fawb txog khoom siv tau nce qib, PTFE yuav txuas ntxiv ua kom muaj kev daws teeb meem valve sib dua, ua haujlwm tau zoo dua, thiab siv tau ntev dua uas sib haum nrog cov qauv thoob ntiaj teb rau kev ruaj khov thiab digitalization.
Ningbo Yokey Precision Technology siv kev txawj ntse ntawm PTFE los tsim cov foob pob thiab cov khoom siv valve rau kev siv hauv tsheb, lub zog, thiab kev lag luam. Peb daim ntawv pov thawj IATF 16949 thiab ISO 14001 ua kom muaj kev zoo sib xws hauv cov chaw muaj kev pheej hmoo siab.
Cov Lus Tseem Ceeb: PTFE li qub, fluoropolymer sealing, tshuaj lom neeg tsis kam, kev tswj cov kua dej hauv kev lag luam
Cov ntaub ntawv siv
Cov Khoom Siv PTFE hauv Kev Tsim Valve - Chemical Engineering Journal (2025)
Cov Qauv Txheej PTFE rau Cov Khoom Siv Corrosive - ISO 9393-1
Kev Kawm Txog Cov Ntaub Ntawv: PTFE hauv Kev Siv Tshuaj Valve - Kev Nyab Xeeb Txheej Txheem Txhua Peb Hlis (2024)
Kev Txhim Kho Fluoropolymer Siab Dua - Cov Khoom Siv Niaj Hnub No (2023)
Tsab xov xwm no yog rau kev qhia xwb. Kev ua tau zoo sib txawv raws li cov xwm txheej tshwj xeeb ntawm daim ntawv thov.
Lub sijhawm tshaj tawm: Lub Ib Hlis-16-2026