PTFE txheej, tseem hu ua polytetrafluoroethylene txheej, yog dav siv nyob rau hauv ntau yam kev lag luam teb vim nws zoo heev kub kuj. Nkag siab txog qhov ntsuas kub tsis kam ntawm PTFE txheej yog qhov tseem ceeb los xyuas kom meej tias nws muaj kev nyab xeeb thiab ua haujlwm tau zoo hauv cov ntawv thov tshwj xeeb.
Temperature resistance limit overview
Qhov ntsuas kub tsis kam ntawm PTFE txheej feem ntau suav tias yog 260 degree (500 degree F). Ntawm qhov kub no, cov khoom siv PTFE tuaj yeem tswj nws lub cev thiab tshuaj lom neeg thiab tsis yooj yim rau deform, yaj lossis decompose. Cov yam ntxwv no ua rau PTFE qhov kev xaiv zoo tshaj plaws rau qhov chaw kub kub, xws li cov kav dej tshuaj, cov ntsaws ruaj ruaj thiab cov khoom siv thermal conductivity.
Kev siv lub sijhawm ntev kub
Txawm hais tias qhov ntsuas kub tsis kam ntawm PTFE tuaj yeem ncav cuag 260 degree, hauv kev siv tiag tiag, txhawm rau ua kom nws lub sijhawm ntev thiab kev nyab xeeb, nws raug pom zoo tias nws qhov ntsuas kub tsis tu ncua yuav tswj tau qis dua 200 degree. Qhov no yog vim lub sij hawm ntev raug rau qhov kub thiab txias ze rau qhov ntsuas kub tsis kam yuav ua rau kev ua haujlwm ntawm PTFE cov ntaub ntawv maj mam deteriorate, thiab txawm ua rau muaj kev nyab xeeb.
Kev ua tau zoo ntawm qhov kub thiab txias
Thaum tsis tshua muaj kub, PTFE txheej muaj peev xwm tswj tau softness thiab elasticity tsis ua nkig los yog poob lawv cov khoom. Qhov no ua rau PTFE yog qhov kev xaiv zoo tshaj plaws rau kev siv cryogenic, xws li cov kua nitrogen cia thiab cov khoom siv dav hlau. Nyob rau hauv ib puag ncig kub, PTFE coatings kuj muaj peev xwm tswj tau lawv stability yam tsis muaj decomposition los yog deformation.
Xaus
Nyob rau hauv cov ntsiab lus, qhov ntsuas kub ntawm PTFE txheej yog 260 degree, tab sis nyob rau hauv cov ntaub ntawv siv, thiaj li yuav ua kom nws lub sij hawm ntev stability thiab kev nyab xeeb, nws raug nquahu kom tswj nws qhov kub thiab txias hauv qab 200 degrees. Kev nkag siab thiab ua raws li cov kev txwv kub no yog qhov tseem ceeb kom paub txog qhov zoo ntawm PTFE txheej.
