Fluorine roj hmab (FKM) yog ib qho thermosetting elastomer, thaum polytetrafluoroethylene (PTFE) yog cov thermoplastic.Ob leeg yog cov ntaub ntawv fluorinated, ncig los ntawm fluorine atoms los ntawm carbon atoms, uas ua rau lawv incredibly tshuaj resistant.Hauv tsab xov xwm no, cov tshuaj TRP polymer sib piv ob cov ntaub ntawv ntawm FKM thiabPTFElos txiav txim seb qhov twg yog cov khoom siv fluorinated zaum kawg thiab xaiv qhov kawgPTFE hose manufacturers
Cov txiaj ntsig ntawm FKM roj hmab thiab PTFE
Keeb kwm:
FKM: Lub dav hlau thaum Tsov Rog Ntiaj Teb Zaum II tau ua phem los ntawm cov dej ntws ntawm nitrile cov ntsaws ruaj ruaj, uas tsis muaj qhov kub thiab txias uas yuav tsum tau siv rau ntau yam kev siv.Cov tshuaj inertness ntawm fluorocarbon bonds txhais tau hais tias fluorinated elastomers, los yog fluoroelastomers, yog ib tug natural xaus.Yog li FKM roj hmab tau pib ua lag luam hauv xyoo 1948
PTFE: Xyoo 1938, DuPont tus kws tshawb fawb Roy Plancott nrhiav pom polytetrafluoroethylene los ntawm kev sib tsoo.Plunkett tau sim nrog cov tub yees thiab khaws cia rau hauv lub tog raj kheej.Ua rau nws xav tsis thoob, cov pa roj no sib sau ua ke, tawm hauv qab cov khoom siv dawb dawb, uas tsis hnov mob nrog cov tshuaj lom neeg thiab tuaj yeem tiv taus qhov kub thiab txias.DuPont tau sau npe thawj hom PTFE cov ntaub ntawv-ptfe hauv xyoo 1945
Kev Txiav Txim Siab: Txoj kev loj hlob ntawm PTFE yog ib qho kev sib txuam ntawm txoj hmoo txaus nyiam, uas ua rau yug los ntawm cov khoom siv txawv txawv.Txawm li cas los xij, ib qho khoom siv zoo sib xws, FKM roj hmab, yog qhov tsim nyog rau xyoo ua tsov rog.Vim li no, qhov kev pab cuam keeb kwm ntawm FKM fluoroelastomer txhais tau hais tias nws zoo dua me ntsis hauv qhov kev sib tw no.
Khoom:
FKM roj hmab: FKM roj hmab muaj cov pa roj carbon-fluorine muaj zog, ua rau nws muaj tshuaj lom neeg, kub-resistant thiab oxidation-resistant.FKM muaj ntau qhov sib txawv ntawm carbon-hydrogen bonds (ib qho kev sib txuas nrog cov cua sov tsis muaj zog thiab tshuaj lom neeg tsis muaj zog), tab sis tseem muaj cov tshuaj tiv thaiv muaj zog dua li lwm cov elastomers.
PTFE: Polytetrafluoroethylene yog tsim los ntawm cov saw hlau ntawm carbon atoms, nrog ob lub fluorine atoms ntawm txhua carbon atom.Cov fluorine atoms nyob ib puag ncig cov saw hlau los tsim cov molecule tuab nrog cov pa roj carbon-fluorine muaj zog heev thiab cov qauv polymer, ua rau PTFE inert rau feem ntau cov tshuaj.
Kev Txiav Txim Siab: Raws li lawv cov tshuaj muaj pes tsawg leeg, PTFE tsis muaj cov pa roj carbon-hydrogen bonds, uas ua rau nws muaj tshuaj lom neeg ntau dua li FKM (txawm tias FKM tseem muaj tshuaj tiv thaiv zoo kawg nkaus).Vim li no, PTFE tsuas yog tus duab ntxoov ntxoo ntawm FKM nyob rau hauv no puag ncig
Qhov zoo:
FKM:
Qhov kub thiab txias (-45 ° C-204 ° C)
Cov tshuaj tiv thaiv zoo heev
High ceev, zoo kev ntxhib los mos
Zoo mechanical zog
Nws puas tuaj yeem tsim rau kev tawg decompression, CIP, SIP
PTFE:
Dav kub tsis kam (-30 ° C txog + 200 ° C)
Chemically inert
Hluav taws xob rwb thaiv tsev zoo heev
High txias thiab kub resistant
Non-adhesive, waterproof
Lub coefficient ntawm kev sib txhuam yog qhov tsawg tshaj plaws ntawm tag nrho cov khoom
Kev Txiav Txim: Nws yog tsis yooj yim sua kom cais lawv qhov puag ncig no.FKM muab ntau dua qhov kub thiab txias, tab sis tsis ncav cuag qhov kev ua tau zoo ntawm PTFE raws li cov tshuaj tiv thaiv.Thiab PTFE yog me ntsis tshav kub-resistant, tab sis muab ntau txoj kev uas tsis yog-nplaum zog
Qhov tsis zoo:
FKM:
Nws puas yuav o hauv cov kuab tshuaj fluorinated?
Tsis tuaj yeem siv nrog molten lossis gaseous alkali hlau
Tus nqi siab dua li lwm yam uas tsis yog-fluorocarbons
Xaiv qhov tsis ncaj ncees lawm FKM rau daim ntawv thov tuaj yeem ua rau tsis ua haujlwm sai
Cov qib kub qis tuaj yeem raug nqi kim
PTFE:
Tsawg zog thiab nruj
Tsis tuaj yeem yaj ua tiav
Cov hluav taws xob tsis zoo
High Shore hardness ua rau PTFE nyuaj rau kaw
Ptfe o-rings muaj qhov to ntau dua li lwm cov elastomers
Inelasticity ua rau ntau lub foob pob ua tsis tau
Kev Txiav Txim Siab: Feem ntau, FKM roj hmab yeej qhov kev sib tw no nrog nws lub zog zoo dua, yoog raws thiab muaj peev xwm sib khi.Tau kawg, yog tias tsis muaj dab tsi tab sis tsis muaj tshuaj lom neeg tsis txaus, ces PTFE yog qhov kev xaiv zoo.Txawm li cas los xij, FKM muab kev hloov pauv ntau dua hauv txhua yam!
Daim ntawv thov:
FKM:
Automotive
Kev ua tshuaj lom neeg
Roj thiab roj
Heavy duty machinery
Aerospace
Ntau lwm tus
PTFE:
Cov khoom siv tshuaj ua haujlwm
Valves
Kev thauj tshuaj lom neeg
Twj diaphragms
Kev txiav txim: Nws yog lwm qhov kev sib ntaus sib tua tuag!FKM muaj ntau yam kev siv, thiab tuaj yeem siv rau qee qhov kev siv hnyav heev.Txawm li cas los xij, txawm tias nws cov kev txwv, PTFE cov ntaub ntawv muab cov kev daws teeb meem zoo tshaj plaws rau cov ntawv thov nyuaj uas cuam tshuam nrog huab cua siab, kub thiab tshuaj corrosive.
Tus nqi:
FKM roj hmab yog cov khoom lag luam zoo vim nws cov tshuaj muaj pes tsawg leeg thiab cov tshuaj tiv thaiv tom qab.Yog tias koj tsis xav txog cov khoom siv tshuaj thiab qhov kub thiab txias, koj tuaj yeem xaiv qhov pheej yig dua elastomer.
PTFE: PTFE khoom kuj yog cov khoom zoo.Ib yam li ntawd, yog tias qhov ntsuas kub, siab, thiab cov tshuaj corrosive koom nrog hauv koj daim ntawv thov tsis dhau qhov xwm txheej hnyav, ces cov kev xaiv pheej yig dua yuav xav tau.Yuav kom tau txais qhov zoo tshaj plaws sealing kev ua tau zoo, PTFE yog sib koom ua ke rau lub elastomer core muab compression kuj.
Txiav txim: Ob leeg FKM thiab PTFE yog cov khoom zoo rau cov laj thawj zoo.Ob leeg ntawm cov ntaub ntawv no muaj cov khoom tshwj xeeb, uas piav qhia txog tus nqi ntawm kev tsim khoom.Txawm li cas los xij, koj yuav tsum nco ntsoov tias rau kev siv huab, ob qho tib si muab cov yam ntxwv tshwj xeeb.Hauv qhov no, koj tau txais yam koj them rau, thiab cov kev xaiv pheej yig feem ntau ua tsis tau sai.Qhov no thaum kawg yog kev lag luam tsis ncaj ncees lawm.
Kev tshwm sim: Feem ntau, qhov hloov pauv ntawm FKM muab qhov zoo rau hauv qhov kev sib tw no.Thaum kawg, ob qho tib si ntawm cov khoom siv fluorinated no muab cov tshuaj tiv thaiv tshwj xeeb thiab kub tsis kam.Txawm li cas los xij, raws li cov yas, PTFE yog nruj dua li FKM;ua rau nws tsuas yog tsim nyog rau feem ntau cov ntaub ntawv sealing qhov chaw siab thiab cov tshuaj corrosive yog qhov kev txhawj xeeb tseem ceeb.Kev siv dav dua ntawm FKM raws li cov khoom sib khi muaj, zoo, paub tseeb tias nws yeej!
Peb cia siab tias qhov kev sib piv ntawm FKM roj hmab thiab PTFE yuav ua rau koj nkag siab zoo txog ntau yam ntawm txhua yam khoom.Nws yuav tsum tau hais qhia tias txoj hauv kev zoo tshaj plaws los xaiv cov khoom tsim nyog tshaj plaws rau koj daim ntawv thov yog tham nrog tus kws tshaj lij uas tuaj yeem qhia koj txog ntau qib ntawm cov ntaub ntawv thiab phim cov kev daws teeb meem zoo tshaj plaws rau koj daim ntawv thov.
Cov saum toj no yog hais txog FKM thiab PTFE hais txog cov ntsiab lus qhia, Kuv vam tias tsab xov xwm no tuaj yeem pab koj, peb yog los ntawm Tuam Tshoj cov kws tshaj lijPTFE hose lwm tus neeg, welcome to consult our products and please freely contact us at sales 07@zx-ptfe.com
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Post lub sij hawm: Apr-16-2021