Xov Tapes ntaub ntawv

Xov tapes yog siv los muab, ntub, thiab tiv thaiv kom txhob qaug dab peg rau threaded bolts, studs, thiab fittings. Lawv feem ntau xa mus rau raws li:

  • Teflon daim kab xev
  • PTFE daim kab xev
  • PTFE xov foob daim kab xev
  • neeg kho kav dej lub daim kab xev

Xov tapes feem ntau yog ua los ntawm polytetrafluoroethylene (PTFE), ib tug heev crystalline, perfluorinated polymer uas yog zoo dua lub npe hu los ntawm nws DuPont hom thiab sau npe trademark-Teflon. PTFE daim kab xev muaj ib tug tsis tshua tsawg coefficient ntawm tsis sib haum xeeb, zoo tshuaj tsis kam, thiab zoo kub kuj. Tshuaj inertness tiv thaiv tus ntoo khaub lig-linking thiab ua rau PTFE xov tapes ib tug zoo xaiv rau daim ntaub ntawv uas koom nrog corrosive tshuaj xws li kua pa, los yog caustics xws li ammonium hydroxide. Xov tapes kuj yuav ua los ntawm polyethylene (PE), ib tug tsis tshua muaj nqi yas uas resists dej thiab ntau cov tshuaj.

Specifications

Xov tapes nqa specifications xws li:

  • ceev
  • tensile zog
  • elongation
  • qhov ntev
  • substrate compatibility

PTFE xov daim kab xev lwm piav lawv cov khoom raws li yog high-density los yog tsawg-density. High-density PTFE xov tapes feem ntau yog muaj ib tug ntom ntawm .70 g / cm3 los yog 1.2 g / cm3. Tsawg-density PTFE xov tapes feem ntau yog muaj ib tug ntom ntawm .37 g / cm3. Tensile zog yog tus quab yuam yuav tsum tau mus ua txhaum ib txog xov kab xev los ntawm rub rau opposite xaus. Elongation yog lub fractional nce nyob rau hauv ib tug xov daim kab xev ntev vim kev nyuab siab nyob rau hauv nro los yog mus rau thermal expansion. Tseem ceeb qhov ntev rau xov tapes muaj xws li ntev, dav, thiab thickness. Nrog kev xav txog substrate compatibility, ib co Teflon tapes yog tsim los siv nrog cov kav dej, hlab, los yog conduits ua los ntawm txhuas, dub hlau, los yog dag. Lwm yam PTFE xov foob daim kab xev adheres rau chrome, tooj liab, iav, hnab yas, los sis roj hmab.

Standards

PTFE xov tapes ua raws li ob tug yooj yim zoo qauv thiab xim coded rau ib tug ntau yam ntawm daim ntawv sau npe. MIL-T-27730A yog ib tug US cov tub rog specification (MIL-Spec) uas qhia txog ib tug tsawg kawg nkaus thickness ntawm 3 mils. AA-58092 yog ib tug coj mus muag txheem uas koom tes rau thickness yuav tsum tau MIL-T-27730A, tab sis ntxiv ib yam tsawg kawg nkaus ceev txheem. Dawb PTFE xov daim kab xev muab kaw ntom nti ua cov ntsaws ruaj ruaj rau ib tug ntau yam ntawm threaded pob qij txha thiab yog haum rau feem ntau cov kav dej thiab potable dej systems. Daj PTFE xov kab xev yog tsim siv rau cov kav dej, conduits, bolts, li qub, thiab threaded roj kab uas nqa cua, ammonia, butane, tshuaj chlorine ua, los yog hydrogen. Liab Teflon kab xev yog ua los ntawm heavy-duty, muaj qib PTFE thiab yog siv nyob rau hauv coj mus muag los yog muaj cov kav dej daim ntawv sau npe. Ntsuab Teflon xov tapes tej zaum yuav siv nyob rau hauv cov pa-handing daim ntaub ntawv.

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Post lub sij hawm: Sep-08-2018
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