Makhalidwe a ma graphite bearings

Makhalidwe a ma graphite bearings

1. Kukhazikika kwamankhwala kwabwino
Graphite ndi chinthu chokhazikika pamankhwala, ndipo kukhazikika kwake kwamankhwala sikutsika poyerekeza ndi zitsulo zamtengo wapatali. Kusungunuka kwake mu siliva wosungunuka ndi 0.001% - 0.002% yokha.Graphitesichisungunuka mu organic kapena organic solvents. Simawononga komanso kusungunula mu ma acid ambiri, maziko ndi mchere.
2. Kutentha kwakukulu kwa kutentha kwa graphite
Kupyolera mu kuyesa, kutentha kwa utumiki wa mayendedwe a carbon grade angafikire 350 ℃; Metal graphite kubala ndi 350 ℃; Electrochemical graphite grade bear imatha kufika 450-500 ℃ (pansi pa katundu wopepuka), katundu wake wakuthupi ndi wamakina amakhalabe osasinthika, ndipo kutentha kwake kwautumiki kumatha kufika 1000 ℃ pansi pa vacuum kapena mlengalenga woteteza.
3. Kuchita bwino kudzipaka mafuta
Kujambula kwa graphiteali ndi ntchito yabwino yodzipaka mafuta pazifukwa ziwiri. Chimodzi mwa zifukwa n’chakuti maatomu a carbon amene ali m’malo otchedwa graphite lattice amasanjidwa pa ndege iliyonse m’njira yokhazikika ya makona atatu. Mtunda pakati pa ma atomu ndi pafupi, womwe ndi 0.142 nm, pamene mtunda wapakati pa ndege ndi 0.335 nm, ndipo amadzandikirana kuchokera kumbali imodzi. Ndege yachitatu imabwereza malo a ndege yoyamba, ndege yachinayi ikubwereza malo a ndege yachiwiri, ndi zina zotero. Mu ndege iliyonse, mphamvu yomangirira pakati pa maatomu a carbon ndi yamphamvu kwambiri, pamene mtunda wapakati pa ndege ndi waukulu, ndipo mphamvu ya van der Waals pakati pawo imakhala yofooka kwambiri, choncho n'zosavuta kuchoka ndikusuntha pakati pa zigawo, chomwe chiri chifukwa chachikulu. chifukwa chiyani zida za graphite zili ndi zodzikongoletsera zokha.
Chifukwa chachiwiri ndi chakuti graphite zipangizo ndi amphamvu adhesion ndi zitsulo zambiri zipangizo, kotero exfoliated graphite mosavuta amamatira pamwamba zitsulo pamene akupera ndi zitsulo, kupanga wosanjikiza wafilimu ya graphite, yomwe imakhala mikangano pakati pa graphite ndi graphite, motero kuchepetsa kwambiri kuvala ndi kukangana, Ichi ndi chimodzi mwa zifukwa zomwe ma carbon graphite bearings ali ndi ntchito yabwino yodzipangira okha komanso antifriction.
4. Zina zamtundu wa graphite
Poyerekeza ndi ma bere ena,zojambula za graphiteamakhalanso ndi matenthedwe apamwamba kwambiri, otsika kwambiri a kukula kwa mzere, kuzizira kofulumira komanso kukana kutentha ndi zina zotero.