Unsintered PTFE Rau Kev Siv Hlau

 

FOREVERSEAL Unsintered PTFE Zaj duab xis yog qhov tsawg- ntom nthuav dav PTFE (ePTFE) zaj duab xis uas tsim los rau kev xaim wrapping, cable rwb thaiv tsev, thiab daim ntaub ntawv siv hlua hlau. Ua los ntawm 100% nkauj xwb PTFE resin tsis muaj qhov siab -kub sintering kauj ruam, zaj duab xis no khaws cov mos mos, conformable qauv uas wraps smoothly nyob ntawm tej nyob ntawm tej thiab cables ntawm tej duab.

Nrog rau tus qauv ceev ntawm 0.67 g / cm³, thickness ntawm 0.102mm, thiab muaj dav ntawm 4mm mus rau 200mm, zaj duab xis no ua hauj lwm rau ntau yam ntawm cov hlau thiab cable daim ntawv thov - los ntawm zoo sensor nyob ntawm tej mus rau hnyav -lub hwj chim cables. Kev sib koom ua ke - qhov ntev pub dawb tshaj 200m kom ntseeg tau tias kev ua haujlwm tas mus li tsis muaj kev cuam tshuam.

Lub unsintered nthuav cov qauv muab cov khoom tseem ceeb hlau engineers xav tau: ib tug tsis tshua muaj coefficient ntawm kev sib txhuam rau smooth hlau txav, siab dielectric lub zog rau hluav taws xob rwb thaiv tsev, tshuaj inertness rau hnyav ib puag ncig, thiab ib tug dav kub ntau yam (-190℃rau +260 degree) rau kev xav tau tsheb, aerospace, kev kho mob, thiab muaj kev siv.

Qhov tseem ceeb sib txawv: Tsis zoo li sintered PTFE zaj duab xis (qhov ntom ~ 2.15 g / cm³), unsintered nthuav PTFE ntawm 0.67 g / cm³ yog 3x sib zog, softer, thiab deb ntau conformable - ua rau nws zoo tagnrho rau wrapping ib ncig ntawm cov xov hlau tsis ntxiv ntau dhau los yog nruj. Nws kuj raug nqi tsawg dua los tsim, vim nws hla lub zog- txheej txheem sintering hnyav.

 

Unsintered vs. Sintered PTFE - Kev piav qhia

Unsintered PTFE yog dab tsi?

PTFE (Polytetrafluoroethylene) yog ua tiav nyob rau hauv ob hom: sintered thiab unsintered. Qhov sib txawv nyob rau hauv seb cov khoom puas tau rhuab saum nws crystalline melting point (~ 327 degree) fuse cov polymer hais ua ke:

Khoom	Unsintered PTFE (Cov khoom no)	Sintered PTFE
Qhov ntom	0.67 g / cm³ (tsawg, ntxeem tau)	~ 2.15 g / cm³ (siab, ntom)
Qauv	Mos, conformable, microporous	Rigid, solid, non-porous
Sintering	TSIS rhuab saum 327℃- khaws cov qauv nyoos	Kub rau 370-400℃kom fuse cov khoom
Yooj yim	Siab - qhwv tau yooj yim ntawm cov xov hlau	Tsawg - tawv, yuav tsum tau skived siv ua zaj duab xis
Nqi	Tsawg dua - tsis muaj nqi hluav taws xob sintering	Siab dua - yuav tsum tau ua haujlwm siab -kub
Kev sib txhuam coefficient	0.05-0.10 (tsis tshua muaj siab)	0.05-0.10 (tib yam - khoom vaj khoom tsev PTFE)
Tshuaj tiv thaiv	Tag nrho - tib yam li sintered PTFE	puv
Zoo tshaj rau	Hlau wrapping, cable rwb thaiv tsev, gaskets	Rigid seals, machined qhov chaw, nruj liners

 

Expanded PTFE (ePTFE) yog dab tsi?

Cov khoom siv kuj tau piav qhia tias "nthuav dav" - txhais tau tias PTFE tau nrawm nrawm tom qab lubrication, tsim kom muaj cov qauv microporous nrog ntau lab ntawm cov pores me me ib square inch. Txoj kev nthuav dav no muab ntau yam txiaj ntsig:

Tsawg ntom ntom:Kev nthuav dav txo qhov ceev ntawm ~ 2.15 g / cm³ mus rau 0.67 g / cm³, ua rau zaj duab xis 3x sib zog.

Higher conformability:Cov qauv microporous ua rau cov yeeb yaj kiab softer thiab hloov tau yooj yim, tso cai rau nws ua raws li cov duab tsis sib xws.

Zoo heev dielectric zog:Cov cua daig hauv qhov pores txhim kho hluav taws xob rwb thaiv tsev thaum tswj PTFE lub zog dielectric lub zog.

Tus kheej -lubricating:Cov qauv ntxeem tau khaws cov nyhuv lubricating, txo kev sib txhuam ntawm cov yeeb yaj kiab thiab cov hlau.

Breathable tsis tau waterproof:ePTFE repels kua dej tab sis tso cai rau vapor kis tau tus mob - pab tau nyob rau hauv daim ntawv thov uas tswj cov dej noo tseem ceeb.

 

 

● PTFE (Polytetrafluorethylene)

● Nthuav, ntuj lossis dawb

 

 

 

Thickness	0.0040"
	(0.102 hli)
Ua siab ntev	±0.00025"
	± 0.006 hli
Dav	4 - 200 hli
Qhov ntom	0.67g / cm3
Tensile zog (yam tsawg kawg nkaus)	12 MPa
Elongation (tsawg kawg)	50%
Joint Free Lengths	> 200m