Cov tub ntxhais ntawm hloov PTFE yog cov lus qhia ntawm ob ntu cov khoom siv rau hauv Matrix PTFE los ntawm kev muab tub lim los ntawm kev sib xyaw ua ke, yog li kev txhim kho nws cov khoom siv, thermal, lossis cov khoom siv hluav taws xob. Cov ntaub ntawv hloov kho uas tau muab faib ua cov hauv qab no:
1. Muab tso {- Hom Hloov Kho: Txhim Kho Cov Neeg Kho Tshuab thiab Hnav Tsis kam
Muab tub lim {- hom kev hloov kho ncaj qha PTFE qhov tsis txaus ntseeg los ntawm kev ntxiv cov khoom siv inorganic lossis cov organic. Cov Fillers ib txwm thiab lawv txoj haujlwm yog raws li hauv qab no:
Iav Fiber (GF): Feem ntau muaj 5% rau 40%. Cov fiber ntau cov fiber ntau yooj yim txhim kho PTFE's compressive lub zog (txog li 2-3 zaug), nkag ruaj khov, thaum tseem txo cov dej txias. Txawm li cas los xij, nws coefficient ntawm kev sib txhuam yuav nce me ntsis, yuav tsum tau nce me ntsis, xav tau kev txhim kho kom zoo nrog lwm cov fillers.
Carbon fiber (CF): Feem ntau muaj 5% rau 15%. Cov pa roj carbon fibers tsis tsuas yog txhim kho kev siv tshuab lub zog tab sis kuj ua rau ptffe ntau dua (· k) rau kev siv tshuaj ntshiab li siab dua 5 {5,/kuv Kev siv hluav taws xob siab. Tsis tas li ntawd, cov kev ua si ntawm cov roj carbon fickers txhim kho cov nplaum ntawm PTFE rau lwm cov ntaub ntawv.
Bronze hmoov (cusn alloy): qib ntxiv yog feem ntau 10% mus rau 30%. Bronze hmoov Txhim Kho Ntau PTFE lub ris Resistance (kev coj tus nqi thermal (tsa cov thermal condnivity coefficent li 2-3 w / (my k)). Nws yog feem ntau siv nyob rau hauv qhov uas yuav tsum tau swb txhuam, xws li bearings thiab cov kev coj ua.
Molybdenum disculide (mosfos): 1% mus rau 5%. Raws li cov roj nplua nyeem, moszing ntxiv txo cov coefficient ntawm kev txhuam hniav (rau 0.03}}}}}}
Graphite: 5% mus rau 20%. Graphite, zoo ib yam li Mosf, muaj tus qauv txheej txheej uas muab tus kheej muab tus kheej-}}}}} kev tiv thaiv hluav taws xob thiab hluav taws xob tiv thaiv hluav taws xob.
Sib koom ua ke filling (piv txwv li iav fiber ntau rau cov fiber fiber ntau) Piv txwv li, tus qauv PTFE tau siv hauv cov foob muaj nyob hauv cov foob muaj: PTFE matrix}}} pa roj fiber+ 3 mime. Nws cov nqi hnav tsuas yog 1/10 uas ntshiab PTFE thiab nws tuaj yeem ua haujlwm stably ntawm kev kub siab ntawm 200℃rau lub sijhawm ntev.
2. Blending Hloov Kho: Cov ciaj ciam ua haujlwm
Blending kev hloov kho yog cov txheej txheem kev sib xyaw ua ke PTFE nrog lwm cov polymers lossis cov ntaub ntawv tshwj xeeb los tiv thaiv cov khoom tshwj xeeb:
Polyphenylene Ester (PPE): Kev sib xyaw nrog PTFE txhim kho kub (txuas ntxiv {}} kev txhaj tshuaj Polyetheretne (Peek): Ntxiv rau ntawm ib qho me me ntawm peek (5% -10%) tuaj yeem txhim kho kom paub tseeb, ua kom haum rau cov kev xav tau.
Ua rau cov khoom siv roj carbon monoxide firbon) thiab cov khoom siv hluav taws xob tsis haum
3. Nto Kho Kev Kho Mob: Lub hom phiaj ua kom zoo ntawm cov khoom sib cuam tshuam
Ntxiv nrog rau kev sau thiab kev kho kom haum (xws li cov tshuaj lom neeg etching thiab sodium {-}}} {{0} ecesion rau lwm cov ntaub ntawv (xws li cov hlau thiab roj hmab). Qhov no ua rau nws haum rau feem uas yuav tsum tau siv cov qauv sib xyaw (xws li PTFE thiab hlau Stainless yaj).
Kev tsom xam ntawm cov khoom tseem ceeb siv rau hauv kev tsim khoom ntawm kev hloov kho PTFE seem
Nyob rau hauv cov lag luam teb, polytetrafluoroethylene (PTFE) tau siv dav vim nws cov tshuaj lom neeg zoo heev, muaj siab} kub ua hauj lwm, thiab tsis tshua muaj kev sib txhuam. Txawm li cas los xij, cov neeg kho tshuab zog, thiab ua cov khoom ntshiab ptfe feem ntau tsis ua haujlwm ntawm kev ua haujlwm nyuaj los ntawm kev hloov kho thev naus laus zis ua tus yuam sij. Cov tub ntxhais ntawm kev tsim khoom hloov PTFE cov lus dag nyob hauv kev xaiv cov kev sib txuas ua ke ntawm substrate thiab ntxiv rau kev sib txuas ua haujlwm, durability, thiab tus nqi {} ua hauj lwm zoo.
