Xaiv cov khoom ntim PTFE sealing (iav Fiber / Carbon Fiber / Graphite / Bronze) thiab cov ntawv thov

Kev txhais lus Askiv muaj peev xwm nrog cov ntsiab lus tsim nyog thiab kev tsim qauv zoo nkauj yog muab hauv qab no:

Kev xaiv cov ntsaws ruaj ruaj raws li kev ua haujlwm thiab cov khoom ntim PTFE rau cov ntawv foob
1. Seal xaiv los ntawm tsib yam kev ua haujlwm loj

TSEEM CEEB. Kev xaiv ntawm lub foob yuav tsum tau ua los ntawm kev kawm zoo ntawm tsib qhov kev ua haujlwm loj:

1. Xwm txheej
Static seal / Reciprocating motion / Rotating motion
Rotary daim ntaub ntawv yog tshwj xeeb yog rhiab heev rau counterface hnav thiab zus tau tej cov abrasive hais, yog li cov khoom txuam thiab nto polish yog qhov tseem ceeb.

2. PV Tus nqi thiab Extrusion Gap
Kev kub siab nrog siab extrusion qhov khoob zoo heev ua rau muaj kev pheej hmoo ntawm kev foob extrusion thiab txias txaus deformation.
Hauv qhov no, kev nyiam yuav tsum tau muab rau cov ntaub ntawv uas muaj kev tiv thaiv zoo -extrusion thiab creep resistance.

3. Khoom thiab Hardness ntawm Counterface
Cov ntaub ntawv PTFE puv zoo li yuav ua rau hnav tsis taus dua thaum siv nrog cov ncej, lub tog raj kheej lossis lub rooj zaum ntawm qhov qis dua.
Yog li, cov khoom siv ua ke yuav tsum nrhiav kev sib haum xeeb ntawm kev hnav tsis kam thiab kev tiv thaiv counterface.

4. Compatibility ntawm nruab nrab nrog tshuaj
Corrosive media xws li muaj zog alkalis lossis hydrofluoric acid (HF) yuav tsis tsim nyog thiab tuaj yeem ua rau lub sijhawm ntev ntawm cov ntaub ntawv.
Kev tiv thaiv rau cov tshuaj yog ib qho tseem ceeb ntawm kev xaiv cov khoom siv rau kev teeb tsa hnyav.

5. Kev sib txhuam rhiab heev thiab nplaum -Txoj cwj pwm plam
Tsis tshua muaj kev sib txhuam thiab txhim khu kev qha kev coj tus cwj pwm yog feem ntau yuav tsum tau rau kev ceev ceev reciprocating tshuab thiab servo hydraulic daim ntaub ntawv.
Hauv cov xwm txheej no, nws yog ib qho tseem ceeb kom txo cov pas - plam (crawling).

Lub hauv paus rau engineering seal xaiv suav nrog cov yam ntxwv no: nkag, hnav, tshuaj tiv thaiv, conductivity, thiab thermal conductivity.

2. Plaub yam khoom ntim PTFE: Cov khoom siv thiab kev siv
Kev sib piv hauv qab no yog tus sawv cev ntawm cov qauv kev lag luam dav dav. Kev ua tau zoo tiag tiag yog nyob ntawm hom muab tub lim, morphology (fibre lossis hmoov), concentration, sintering txheej txheem thiab kev tsim khoom zoo.

2.1 iav puv PTFE
Cov txiaj ntsig tseem ceeb:

Zoo heev lowers creep (txias ntws)

Siab hnav tsis kam thiab compressive zog

Dav siv raws li lub hom phiaj dav dav txhawb qib

Cov kev txwv tseem ceeb:

Ntau abrasive rau mating nto, tshwj xeeb tshaj yog nyob rau hauv daim ntawv thov teb

Incompatible nrog hydrofluoric acid (HF) thiab muaj zog alkaline daws

Cov ntawv thov sealing yog:

Reciprocating Hydraulic & Pneumatic Seals

Rov qab-ntiv nplhaib thiab tiv thaiv- nplhaib extrusion

Hnav rings / Qhia rings

Cov yam ntxwv sealing (xws li lub rooj zaum valve)

Daim ntawv xaiv:
Iav- puv PTFE yog zoo meej rau kev kub siab reciprocating tshuab xav tau qhov ruaj khov thiab nkag siab. Tab sis feem ntau nws tsis nyiam rau daim ntawv thov teb nrog cov shafts mos. Qhov no yog vim nws abrasive xwm.

2.2 PTFE ntim nrog carbon / carbon-graphite
Carbon loaded PTFE hais txog cov tshuab nrog carbon hmoov, carbon fiber, los yog carbon / graphite sib tov. Cov lus tseeb yuav tsum tau kuaj xyuas thaum lub sijhawm xaiv.

Qhov zoo tseem ceeb:

Txo creep thiab txhim kho toughness

Txhim kho thermal conductivity

Qhuav zoo heev -khiav zog ntawm carbon- graphite sib tov

Muaj nrog cov khoom tiv thaiv -static (hluav taws xob conductive) zoo

Cov txiaj ntsig ntawm carbon fiber tshwj xeeb:

Kev txhim kho zoo sib xws hauv kev nkag mus rau iav fiber ntau, tab sis feem ntau ntawm kev thauj khoom qis dua.

Haum rau cov xwm txheej alkaline thiab hydrofluoric acid uas iav fiber ntau tsis tsim nyog.

Txhim kho hnav tsis kam nyob rau hauv dej lubrication

Cov ntawv thov sealing yog:

Pneumatic sealing cov cuab yeej

Reciprocating seals nyob rau hauv qhuav los yog ciam lubrication

Rings thiab coj strips rau hnav

Dynamic sealing ntsiab nrog tsis tshua muaj kev sib txhuam

Kev txwv:

Kev ua tau zoo tuaj yeem degraded hauv cov xwm txheej oxidizing siab

Hluav taws xob rwb thaiv tsev tej zaum yuav pab tau nyob rau hauv cov xwm txheej uas koj tsis xav tau conductivity.

Daim ntawv xaiv:
Cov pa roj carbon-graphite systems yog qhov zoo tagnrho rau qis-lubrication lossis qhuav- tej yam tshwm sim thaum tswj deformation thiab txo hnav yuav tsum tau. Cov pa roj carbon fiber ntau yog qhov zoo tshaj plaws rau kev siv tshuaj lom neeg los yog dej lubricated systems.

2.3 Graphite puv PTFE
Qhov zoo tshaj plaws:

Tsawg coefficient ntawm kev sib txhuam

Soft counter lub ntsej muag khoom tus phooj ywg

• Cov tshuaj tiv thaiv zoo heev

Rau nruab nrab mus rau siab Load thiab ceev tej yam kev mob tsim nyog

Hom kev siv rau sealing:

Tsawg ceev reciprocating systems (servo hydraulics, precision thooj voos kheej kheej) uas yuav tsum tau anti-stick- plam

Rotary shaft seals rau cov ncej mos nyob rau hauv uas tsis yog -lubricated tej yam kev mob

Sealing daim ntaub ntawv rau corrosive media (pumps, li qub, rotating machinery)

Caij nplooj ntoos hlav activated seal systems foob tsho

Kev txwv:

tuaj yeem cuam tshuam kev hnav khaub ncaws nyob rau hauv cov huab cua qhuav heev

Nyob rau hauv lubricated tej yam kev mob carbon - graphite los yog carbon fiber sib tov yuav muab ntau dua hnav tsis kam

Nco tseg ntawm kev xaiv:
Graphite-filled PTFE yog haum rau daim ntawv thov uas yuav tsum tau ultra- tsis tshua muaj kev sib txhuam thiab compatibility nrog mos counterfaces, tshwj xeeb tshaj yog nyob rau hauv corrosive ib puag ncig.

2.4. Bronze puv PTFE
PTFE ntim nrog tooj liab feem ntau suav nrog 40-60% tooj liab.

Qhov zoo tseem ceeb:

Zoo tsis kam rau extrusion

Muaj peev xwm thauj khoom siab

Txhim kho thermal conductivity thiab kub dissipation

Kev kub siab creep kuj

Ib txwm sealing daim ntaub ntawv:

Kev kub siab hydraulic pas nrig thiab piston seals

Anti extrusion rov qab rings

Hnav cov strips thiab coj cov nplhaib rau kev pabcuam siab PV

Heavy luag hauj lwm zawv zawg los yog rotational sealing ntsiab

Kev txwv: 1.

Qee qhov kev tshaj tawm yuav muaj cov tshuaj lom neeg tsis sib xws (bronze yuav raug puas tsuaj los ntawm qee yam tshuaj)

Tsis tsim nyog rau kev siv hluav taws xob insulating

Ua tib zoo xaiv cov khoom sib xws yog xav tau los tiv thaiv cov teeb meem tsis sib xws

Daim ntawv xaiv:
Rau cov ntawv thov kev kub siab qhov twg qhov kev xav tau yog feem ntau rau kev tiv thaiv extrusion bronze sau PTFE yog cov khoom xaiv. Tsis haum rau hluav taws xob rhiab heev lossis tshuaj lom neeg siv.

3. Daim ntawv teev cov khoom siv luv luv rau cov khoom siv
Anti-extrusion / thaub qab rings (qhov loj me, siab siab):
PTFE zoo dua, bronze sau; Iav ntim raws li siv raws li tshuaj lom neeg mob

Dynamic seals rau hydraulic rods / pistons (generic siab siab)
Bronze- puv ubiquitous
Low friction or soft shaft systems ->graphite los yog carbon -graphite yog nyiam.

Pneumatic seals rau qhuav los yog tsawg lubrication:
Nyiam carbon loaded los yog carbon graphite systems

Mos counterfaces / qis hnav xav tau:
Nyiam PTFE, Graphite Filled
Siv iav puv PTFE nrog kev saib xyuas

Muaj zog alkali lossis HF (hydrofluoric acid) ib puag ncig:
Cov iav fiber ntau yog tawm ntawm lo lus nug, carbon fiber lossis carbon raws li kev daws teeb meem yog nyiam

Yog xav tau, cov ntawv no kuj tseem tuaj yeem rov- formatted rau hauv:

Qhia rau kev xaiv tus neeg muag khoom

Technical data sheet

Los yog installation + cov khoom xaiv kev cob qhia module rau engineers