Polytetrafluoroethylene (PTFE) yog lub siab molecular hnyav polymer, ib qho ntawm cov ntaub ntawv yas ntau yam paub thiab muaj txiaj ntsig rau ntau yam khoom siv rau cov ntawv thov tsis suav nrog lwm cov ntaub ntawv.
Polytetrafluoroethylene (PTFE luv luv) yog ib qho kev sib txhuam tsis tshua muaj hluavtaws roj hmab uas tau siv ntev rau kev siv sealant rau ntau yam khoom xws li gasses, kua, thiab tshuaj.
PTFE O-Ring Kub Kub Ntau Yam
Txawm hais tias PTFE muaj cov khoom siv qis dua piv rau lwm cov yas, cov khoom siv tshuaj tiv thaiv hauv tandem nrog nws lub peev xwm tiv taus qhov kub thiab txias ntau yam (-100oF txog +400oF) tso cai rau PTFE o-rings muab kev tiv thaiv zoo rau huab cua nrog rau hluav taws xob thiab thermal. rwb thaiv tsev.
Vim tias PTFE yog cov khoom siv ntom ntom, nws tsis tuaj yeem "kua tiav" - nws yuav tsum tau muab compressed thiab sintered los tsim cov duab zoo (xws li o-rings).
Cov ntawv thov saum toj kawg nkaus
Sab nraum zoov lubricants Hydrocarbonsacidsalkalis detergentsalcoholketonessteamrefrigerants
Mechanical Weaknesses
siab nqus sealslow compression nqus sealing flangessuper-rhuab chav
Nce Cov Khoom Siv Hluav Taws Xob nrog Cov Qib Siab Raws li qhia hauv cov lus saum toj no, PTFE o-rings muaj qee qhov tsis zoo ntawm cov khoom siv piv rau lwm cov yas.Yog tias xav tau, cov khoom no tuaj yeem txhim kho los ntawm kev ntxiv cov fillers, xws li:
Cov iav Fibers CarbonGraphiteMolybdenum disulphideBronze
Post lub sij hawm: Apr-10-2020