Graphite yog ib qho allotrope ntawm cov pa roj carbon monoxide, cov khoom siv hloov pauv hloov ntawm atomic crystals, hlau muaju thiab molecular crystals. Feem ntau grey dub, mos zoo nkauj, greasy zoo li.Enhanced cua sov hauv huab cua los yog oxygen uas hlawv thiab tsim carbon dioxide. Muaj zog oxidizing cov neeg ua hauj yuav oxidize nws rau hauv. Organic acids.Siv raws li antiwear tus neeg saib xyuas thiab lubricating khoom, ua crucible, electrode, qhuav roj teeb, mem hluav lead.The scope ntawm graphite nrhiav tau: ntuj graphite, ntom crystalline graphite, flake graphite, cryptocrystalline graphite, graphite hmoov, graphite ntawv, nthuav graphite, graphite emulsion, nthuav graphite, av nplaum graphite thiab conductive graphite hmoov, thiab lwm yam.
1. kub tsis kam: qhov melting point ntawm graphite yog 3850 ± 50 ℃, txawm tias tom qab ultra-siab kub arc hlawv, qhov hnyav poob yog me me, thermal expansion coefficient tsawg heev.Lub zog ntawm graphite nce nrog qhov kub thiab txias. . Ntawm 2000 ℃, lub zog ntawm graphite ob npaug.
2. conductive, thermal conductivity: lub conductivity ntawm graphite yog ib puas lub sij hawm siab tshaj cov uas tsis yog-metallic ore.The thermal conductivity ntawm hlau, hlau, txhuas thiab lwm yam hlau cov ntaub ntawv.Thermal conductivity txo nrog qhov nce ntawm kub, txawm nyob rau hauv heev. kub kub, graphite rau hauv rwb thaiv tsev;
3. Lubricity: lub lubrication kev ua tau zoo ntawm graphite nyob ntawm qhov loj ntawm graphite flake, flake, kev sib txhuam coefficient me dua, lub lubrication kev ua tau zoo dua;
4. tshuaj stability: graphite nyob rau hauv chav tsev kub muaj zoo tshuaj stability, acid kuj, alkali tsis kam thiab organic hnyav corrosion kuj;
5. plasticity: graphite toughness yog zoo, tuaj yeem crushed rau hauv ib daim ntawv nyias nyias;
6. thermal poob siab tsis kam: graphite ntawm chav tsev kub thaum siv tuaj yeem tiv taus qhov kub thiab txias tsis muaj kev puas tsuaj, kub hloov pauv, qhov ntim ntawm graphite hloov me ntsis, yuav tsis tawg.
1. muaj pes tsawg leeg tsom xam: taag carbon, ya raws, impurities, thiab lwm yam .;
2. Kev ntsuas lub cev: hardness, tshauv, viscosity, fineness, particle loj, volatilization, tshwj xeeb gravity, tshwj xeeb nto, melting point, thiab lwm yam.
3. Mechanical zog kuaj: tensile lub zog, brittleness, dabtsi yog khoov xeem, tensile xeem;
4. Kev ntsuas tshuaj lom neeg: dej tsis kam, kav ntev, kua qaub thiab alkali tsis kam, corrosion kuj, huab cua tsis kam, kub tsis kam, thiab lwm yam
5. Lwm yam khoom kuaj: hluav taws xob conductivity, thermal conductivity, lubrication, tshuaj stability, thermal shock kuj