I. Cov yam ntxwv ntawm PTFE
PTFE yog lub npe luv ntawm polytetrafluoroethylene. Nws muaj ntau yam zoo heev, xws li zoo heev corrosion kuj thiab kub kuj. Nws tuaj yeem tiv taus yuav luag txhua qhov muaj zog acid, muaj zog alkali, muaj zog oxidizing nruab nrab thiab organic hnyav. Nws cov tshuaj tiv thaiv corrosion tshaj tag nrho cov yas uas twb muaj lawm. Nws qhov kub thiab txias yog -195-250 degree , thiab nws qhov kub siv mus ntev yog -100-250 degree .
II. Kev nyab xeeb nyob rau hauv ib txwm siv
1. Hais txog chav ua noj
- Hauv cov khoom siv hauv chav ua noj, xws li qee lub lauj kaub uas tsis yog nplaum nrog PTFE txheej, lawv muaj kev nyab xeeb raws li kev siv ib txwm muaj. Thaum lub sij hawm ua noj ua haus, tsuav yog nws tsis siab tshaj nws qhov kub thiab txias (feem ntau tsis tshaj 250 degree), PTFE txheej yuav tsis decompose thiab tsim teeb meem. Qhov kub ntawm kev ua noj ib txwm muaj xws li kib thiab kib qe feem ntau tsis ncav cuag tus nqi txaus ntshai.
2. Nyob rau hauv industrial daim ntaub ntawv
- PTFE yog siv dav hauv cov khoom siv hauv cov tshuaj, petrochemical, roj refining, tshuaj, metallurgical thiab lwm yam kev lag luam. Hauv cov ntawv thov no, PTFE muaj kev nyab xeeb siv ntev npaum li nws tau ua raws li cov qauv kev lag luam. Piv txwv li, nyob rau hauv cov khoom xws li cov kav dej, yeeb nkab fittings, yees, kettles, ntim, twj tso kua mis thiab li qub, PTFE linings yuav zoo ua si cov yam ntxwv ntawm corrosion kuj, siab thiab tsis kub tsis kam, thiab yuav tsis ua mob rau ib puag ncig thiab cov neeg ua haujlwm. , yog tias tsis muaj kev puas tsuaj rau lub cev lossis cov tshuaj tiv thaiv hnyav heev.
III. Kev saib xyuas kev nyab xeeb hauv cov xwm txheej tshwj xeeb
1. Qhov kub thiab txias
- Thaum PTFE raug kub heev, nws yuav ua rau muaj kev phom sij. Thaum qhov kub siab tshaj 250 degree, PTFE yuav pib decompose thiab tej zaum yuav tso ib co teeb meem gases, xws li fluoride. Piv txwv li, qhov no yuav tshwm sim thaum lub lauj kaub uas tsis yog-stick yog kub hnyiab los yog muab tso rau ntawm qhov chaw kub kub rau lub sijhawm ntev. Yog li ntawd, cov neeg siv yuav tsum nruj me ntsis raws li cov khoom lag luam kub txwv.
2. Cov xwm txheej puas tsuaj
- Yog tias cov khoom siv PTFE raug kev puas tsuaj loj heev, xws li txheej txheej yog khawb los yog hauv ob sab phlu yog punctured. Hauv qee qhov chaw tshwj xeeb, xws li kev tsim tshuaj lom neeg, cov tshuaj hauv PTFE tuaj yeem raug rau sab nraud ib puag ncig, lossis PTFE tuaj yeem poob nws qhov kev tiv thaiv qub, uas yuav ua rau qee qhov kev pheej hmoo ntawm kev nyab xeeb, xws li corrosion ntawm cov hlau ib puag ncig lossis cov khoom siv tshuaj lom neeg. .
IV. Xaus
Feem ntau, nyob rau hauv ib txwm siv tej yam kev mob, PTFE muaj kev ruaj ntseg, txawm nyob rau hauv lub chav ua noj cov tais diav nyob rau hauv lub neej txhua hnub los yog nyob rau hauv ntau yam kev siv nyob rau hauv industrial ntau lawm. Txawm li cas los xij, txhawm rau kom ntseeg tau tias nws muaj kev nyab xeeb, cov neeg siv yuav tsum ua raws li cov txheej txheem kev siv cuam tshuam kom tsis txhob nthuav tawm cov khoom PTFE mus rau qhov kub siab lossis qhov hnyav hnyav uas yuav ua rau muaj kev puas tsuaj.
