Cov txiaj ntsig ntawm kev siv cov ntaub ntawv graphite rau bushings?

Cov txiaj ntsig ntawm kev siv cov ntaub ntawv graphite rau bushings?

Tam sim no, muaj ntau yam bushings ntawm kev ua lag luam, ntawm cov graphite bushings tau nyiam ntau xim. Graphite bushings tau dhau los ua qhov kev xaiv zoo tshaj plaws hauv daim teb no vim lawv cov txiaj ntsig ntau. Cov kev ua tau zoo yog raws li hauv qab no:
1. Graphite bushings muaj zoo heev tus kheej lubricating cov zog. Lawv cov txheej txheem crystal tuaj yeem tsim zaj duab xis hloov mus thaum lub sijhawm kev sib txhuam, txo qis kev sib txhuam. Piv nrog hlau bushings, lawv tuaj yeem txo kev sib txhuam tsis dhau los ntawm ntau dua 50%, uas yog tsim nyog rau cov roj-dawb lubrication cov xwm txheej.
2. Graphite bushings muaj kev kub siab tsis kam. Lawv tuaj yeem tiv taus kub siab tshaj 600 degree hauv qhov chaw tsis-oxidizing. Lub thermal expansion coefficient tsuas yog 1 \/ {4 4}} \/ 5 ntawm cov hlau, uas tuaj yeem ua kom muaj kev kub ntxhov siab.
3. Graphite bushings muaj cov tshuaj ruaj khov zoo heev, thiab lawv cov kua qaub thiab alkali corrosion kuj deb tshaj ntawm cov ntaub ntawv hlau. Lawv cov kev pabcuam lub neej tuaj yeem txuas ntxiv los ntawm 3-5}} lub sij hawm nyob rau hauv kev xeb ib puag ncig xws li tshuaj lom neeg lag luam thiab electroplating. Nws cov hluav taws xob thiab thermal conductivity (thermal conductivity ntawm {2}} yuav muaj kev sib hlub ua kom sov thiab tsis txhob ua kom sov.
Ib qho ntxiv, qhov ceev ntawm cov ntaub ntawv graphite tsuas yog 1\/5 ntawm tus tooj liab, uas tuaj yeem txo qhov hnyav ntawm qhov chaw thiab muaj cov machinability zoo. Cov txheej txheem nyuaj tuaj yeem tsim tau ncaj qha los ntawm kev xa mus rau txo cov nqi sib.
Hauv cov kev siv tswv yim, graphite bush ua zoo nyob rau hauv cov zaub mov mov zoo, cov khoom siv hluav taws xob thiab lawv cov kev coj ua tsis zoo yog {}} lub sij hawm siab dua li ntawm bronze bushings. Tom qab raug hloov kho los ntawm Impregnation nrog hlau lossis cob, nws lub zog zog tuaj yeem nce mus rau ntau dua 40mpa, txuas ntxiv nws daim ntawv thov ntau. Zuag qhia tag nrho, graphite bushings tau dhau los ua kev xaiv zoo tshaj plaws rau lawv cov txiaj ntsig zoo xws li kev tu xyuas ntev thiab muaj zog ib puag ncig kev yoog raws.