Qhov sib txawv ntawm kev sib txhuam coefficient ntawm PTFE pas nrig thiab stainless hlau pas nrig cuam tshuam rau cov nyhuv seading?

1. Cov Khoom Siv Khoom Siv Saib Xyuas Kev Sib Tw Kev Ua Yeeb Yam

PTFE (polytetrafluoroethylene) thiab stainless hlau yog ob cov ntaub ntawv uas muaj nyob hauv cov lag luam lag luam, tab sis lawv cov kev sib txhuam yam txawv. PTFE muaj qhov qis heev coefficient ntawm kev sib txhuam, feem ntau yog xws li ntawm 0.02 mus rau 0.08, thaum muaj ntau yam ntawm 0.4 mus rau hauv qhov tsis muaj lubrication. Qhov sib txawv no cov qauv los ntawm cov qauv molecular thiab cov khoom ntiag tug ntawm cov ntaub ntawv lawv tus kheej. Cov kev sib tham sib txuas ntawm PTFE's Macromolecules muaj zog heev, thiab nws cov hluav taws xob nto yog tsawg kawg nkaus ntawm nws thiab qhov chaw tiv tauj ntau dua li cov hlau.

2

Sealing effeniveness yog feem ntau txiav txim siab los ntawm kev tiv tauj siab, kev sib tw nto, thiab txheeb ze sliding cwj pwm ntawm lub foob thiab mating nto. PTFE lub coefficient ntawm kev sib txhuam pab txo cov quab yuam pib thiab khiav tawm tsam, ua rau cov txheej txheem smoother. Stainless hlau, nrog nws cov coefficient ntawm kev sib txhuam, tuaj yeem tsim kev sib txhuam ntau dua thaum pib, kev cuam tshuam nrog kev ruaj ntseg ntawm kev sib txuas lus. Txawm li cas los xij, lub siab coefficient ntawm kev sib txhuam tsis tas imply kev sib khi ua tau zoo; Hauv qee cov ntawv thov, nws tuaj yeem pab txhim kho txhim kho kev pib sib zog.

3. Lubrication tej yam kev sib sau ua tus cwj pwm

Hauv kev siv cov kev siv, roj nplua nyeem xws li cov roj hydraulic lossis roj ntau nyob rau ntawm kev sib txuas sib txuas. Nyob rau hauv lubricated cov xwm txheej, kev sib txhuam coefficient ntawm PTFE thiab stainless hlau yog ntxiv txo, txawm tias 0.0.2-0.05. Nyob rau hauv cov kev mob no, qhov kev cuam tshuam ntawm kev sib txhuam ntawm kev sib txhuam sib txawv ntawm kev sib khi ua tau zoo yuav ploj zuj zus. Lubrication Alters lub qhov kev sib txhuam ntawm cov khoom siv chaw, ua cov kev txhuam cov coefficient tsis muaj kev txiav txim siab ntawm kev ua haujlwm.

4. Qhov kub thiab thauj khoom cuam tshuam cov lus teb

Kev nce qib ua rau PTFE mus muag muag, nce nws lub peev xwm deformation, muaj peev xwm txhim kho kev sib tiv tauj kev sib tiv tauj. Txawm li cas los xij, kev kub siab tuaj yeem ua kom nrawm dua cov khoom nkag, cuam tshuam ntev-}} sij hawm sealing kev ntseeg tau. Stainless hlau, ntawm qhov tod tes, muaj zoo heev thermal ruaj khov thiab tswj hwm nws cov qauv txheej txheem kev sib raug zoo txawm nyob ntawm qhov kub siab. Yog li ntawd, nyob rau hauv cov kub qhov kub tshwm sim, sib txawv hauv kev sib nrauj coefficiy tuaj yeem mas cov lus teb, ua rau muaj feem xyuam rau kev sib khi ua tau zoo.

5. Thov cov xwm txheej cuam tshuam cov khoom siv xaiv

Hauv cov ntsaws ruaj ruaj, xws li piston qws muab cov ntsaws ruaj ruaj, PTFE cov ntawv sib txuas qis dua, pab txo kev hnav thiab siv zog. Stainless hlau, ntawm qhov tod tes, feem ntau siv rau cov ntsaws ruaj ruaj lossis kev siv cov kev xav tau ntawm cov tshuab muaj zog. Nyob rau hauv cov rooj plaub no, tus cawv ntawm kev sib txhuam coefficient yog tus thawj coj ntawm lub zog thiab corrosion tsis kam ntawm cov khoom. Yog li no, kev xaiv cov khoom yuav tsum tau coj mus rau hauv tus account cov kev sib ntaus sib ceg, cov kev ua haujlwm thiab cov kev txiav txim siab ua raws li kev sib txhuam.