Polytetrafluoroethylene (PTFE) yog ib hom semi-crystalline fluoropolymer. PTFE paub zoo txog nws daim ntawv thov ua ib txheej tsis lo rau cov lauj kaub hauv chav ua noj vim nws qhov kub thiab tiv taus corrosion zoo heev.
Yog Dab TsiPTFE?
Cia peb pib tshawb nrhiav seb PTFE yog dab tsi tiag. Txhawm rau muab nws lub npe tag nrho, polytetrafluoroethylene yog cov polymer tsim los ntawm ob lub ntsiab lus yooj yim; carbon thiab fluorine. Nws yog los ntawm tetrafluoroethylene (TFE) thiab muaj qee yam khoom tshwj xeeb uas ua rau nws yog cov khoom siv tau zoo hauv ntau yam kev siv. Piv txwv li:
Qhov kub yaj heev: Nrog rau qhov kub yaj ntawm ib puag ncig 327 ° C, muaj ob peb qhov xwm txheej uas PTFE yuav raug puas tsuaj los ntawm cua sov.
Hydrophobic: Nws txoj kev tiv thaiv dej txhais tau tias nws yeej tsis ntub, ua rau nws muaj txiaj ntsig zoo hauv kev ua noj, kev kho qhov txhab thiab ntau ntxiv.
Chemically inert: Feem ntau ntawm cov kuab tshuaj thiab cov tshuaj yuav tsis ua rau PTFE puas tsuaj.
Cov coefficient qis ntawm kev sib txhuam: Cov coefficient ntawm kev sib txhuam ntawm PTFE yog ib qho ntawm qhov qis tshaj plaws ntawm txhua yam khoom khov uas muaj nyob, txhais tau tias tsis muaj dab tsi yuav lo rau nws.
Lub zog flexural siab: Nws lub peev xwm khoov thiab flex, txawm tias thaum kub qis, txhais tau tias nws tuaj yeem siv tau yooj yim rau ntau yam nto yam tsis poob nws qhov kev ncaj ncees.
Kev ua PTFE
PTFE muaj nyob rau hauv cov ntaub ntawv granular, dispersion thiab hmoov zoo. Semi-crystalline PTFE muaj qhov kub melting siab thiab melt viscosity, ua rau kev extrusion thiab txhaj tshuaj molding nyuaj. Yog li ntawd, kev ua PTFE zoo ib yam li kev ua hmoov dua li cov yas ib txwm muaj.
PTFE granular yog tsim los ntawm kev sib xyaw ua ke ntawm dej. Cov resin granular uas tshwm sim feem ntau yog ua tiav rau hauv cov duab los ntawm kev sib xyaw pwm. Cov khoom PTFE dispersion yog tsim los ntawm ib txoj kev zoo sib xws, nrog rau cov neeg sawv cev dispersing ntxiv. Cov khoom dispersion tuaj yeem siv rau PTFE coatings lossis lawv tuaj yeem ua tiav rau hauv ib zaj duab xis nyias los ntawm kev casting zaj duab xis. PTFE hmoov yog tsim los ntawm kev sib xyaw ua ke emulsion polymerization. Cov hmoov zoo uas tshwm sim tuaj yeem muab tshuaj txhuam rau hauv PTFE tapes, PTFE tubing, thiab hlau rwb thaiv tsev, lossis siv ua cov khoom ntxiv los ua kom muaj kev tiv thaiv corrosion hauv lwm cov ntaub ntawv polymeric.
Sab saum toj 5 Daim Ntawv Thov ntawm PTFE
1. Kev siv cov khoom tiv thaiv xeb
Roj hmab, iav, hlau sib xyaw thiab lwm yam khoom siv tsis ua tau raws li qhov kub thiab txias, siab thiab tshuaj lom neeg sib koom ua ke vim lawv qhov tsis zoo hauv kev tiv thaiv corrosion. Txawm li cas los xij, PTFE muaj kev tiv thaiv corrosion zoo heev thiab yog li ntawd tau dhau los ua cov ntaub ntawv tseem ceeb rau corrosion rau roj av, tshuaj lom neeg, textile thiab lwm yam lag luam.
2. Kev siv cov khoom sib txhuam qis hauv kev thauj khoom
Cov roj lubrication tsis haum rau kev sib txhuam ntawm qee yam khoom siv, vim tias cov roj lubricating tuaj yeem yaj los ntawm cov kuab tshuaj thiab tsis ua haujlwm, lossis cov khoom lag luam hauv kev lag luam tshuaj, khoom noj, textile thiab lwm yam kev lag luam yuav tsum tsis txhob muaj cov roj nplua nyeem. Yog li ntawd, PTFE yas, uas nws cov coefficient ntawm kev sib txhuam qis dua lwm cov khoom siv khov kho paub, tau dhau los ua cov khoom siv zoo tshaj plaws rau kev sib txhuam tsis muaj roj (kev thauj khoom ncaj qha) ntawm cov khoom siv kho tshuab.
3. Daim ntawv thov hauv hluav taws xob thiab hluav taws xob
Vim PTFE cov khoom siv no tsis tshua muaj kev poob qis thiab me me dielectric constant ua rau nws tus kheej ua rau nws tus kheej ua hlau enameled rau micro motors, thermocouples thiab cov khoom siv tswj. PTFE zaj duab xis yog cov khoom siv rwb thaiv tsev zoo tshaj plaws rau kev tsim cov capacitors, xov tooj cua rwb thaiv tsev liner, insulated cables, motors thiab transformers, thiab kuj yog ib qho ntawm cov khoom siv tseem ceeb rau aerospace thiab lwm yam khoom siv hluav taws xob hauv kev lag luam.
4. Daim ntawv thov hauv kev kho mob
PTFE uas nthuav dav yog qhov tsis muaj zog thiab yooj yim hloov kho tau zoo heev, yog li nws tsis ua rau lub cev tsis lees txais, tsis muaj kev phiv tshuaj rau tib neeg lub cev, tuaj yeem ua kom huv los ntawm txhua txoj kev, thiab muaj ntau lub qauv microporous.
5. Kev siv cov khoom tiv thaiv kev nplaum
Nrog qhov kev nruj ntawm qhov chaw qis tshaj plaws ntawm cov khoom khov kho, PTFE Teflon tsis lo rau ib yam khoom twg. Ntxiv mus, nws muaj kev tiv taus zoo heev rau qhov kub siab thiab qis. Yog li ntawd, nws tau siv dav hauv cov yam ntxwv tiv thaiv kev nplaum ntawm cov lauj kaub tsis lo.
Yog tias koj nyob hauv Ptfe Tube, Tej zaum koj yuav nyiam
Cov hauv qab no yog kev qhia dav dav txog cov yam ntxwv tseem ceeb ntawm PTFE raj:
1. Tsis nplaum: Nws tsis muaj zog, thiab yuav luag txhua yam khoom tsis sib txuas nrog nws.
2. Kev tiv taus cua sov: ferroflurone muaj kev tiv taus cua sov zoo heev. Kev ua haujlwm dav dav tuaj yeem siv tas li ntawm 240 ℃ thiab 260 ℃. Lub sijhawm luv luv kub tiv taus rau 300 ℃ nrog lub ntsiab lus yaj ntawm 327 ℃.
3. Kev Siv Lubrication: PTFE muaj qhov sib txhuam coefficient qis. Qhov sib txhuam coefficient hloov pauv thaum lub thauj khoom swb, tab sis tus nqi tsuas yog nyob nruab nrab ntawm 0.04 thiab 0.15.
4. Kev tiv thaiv huab cua: tsis muaj kev laus, thiab lub neej zoo dua tsis laus hauv yas.
5. Tsis muaj tshuaj lom: nyob rau hauv ib puag ncig ib txwm muaj hauv 260 ℃, nws muaj kev inertia physiological thiab tuaj yeem siv rau cov khoom siv kho mob thiab khoom noj.
Kev yuav cov raj PTFE zoo tsis yog tsuas yog hais txog kev xaiv cov lus qhia sib txawv rau ntau daim ntawv thov sib txawv xwb. Ntau ntxiv rau kev xaiv lub chaw tsim khoom txhim khu kev qha.Besteflon FluorineYas Kev Lag Luam Co., Ltd. tshwj xeeb hauv kev tsim cov khoom zooPTFE hoses thiab rajtau 20 xyoo. Yog tias muaj lus nug thiab xav tau, thov koj xav nrog peb tham kom tau txais cov lus qhia ntxiv.
Cov Lus Qhia Txog
Lub sijhawm tshaj tawm: Lub Peb Hlis-15-2024