Qhov zoo ntawm graphite accessories thiab hluav taws xob cua sov ntsiab rau lub tshuab nqus tsev vacuum
Nrog rau kev txhim kho qib ntawm lub tshuab nqus tsev vacuum kho cua sov rauv, lub tshuab nqus tsev kho cua sov muaj qhov tshwj xeeb zoo, thiab kev kho cua sov lub tshuab nqus tsev tau raug hlub los ntawm cov neeg hauv kev lag luam los ntawm kev tsim txiaj ntawm cov txiaj ntsig zoo xws li degassing, degreasing, oxygen dawb thiab automation. Txawm li cas los xij, nws yog ib qho tseem ceeb uas lub tshuab nqus tsev kho cua sov lub tshuab cua sov muaj cov txheej txheem siab rau hluav taws xob cua sov, xws li kub-kub deformation, tawg Volatilization tau dhau los ua ib qho tseem ceeb txwv txoj kev loj hlob.lub tshuab nqus tsev vacuum.
Yuav kom daws tau qhov teeb meem no, kev lag luam tig nws cov xim rau graphite.Graphiteyog ua los ntawm lwm yam hlau thiab muaj impeccable zoo. Nws yog to taub hais tias graphite yog yuav luag nrov nyob rau hauv ntau hom ntawm lub tshuab nqus tsev kho cua sov furnaces raws li ib tug hluav taws xob cua sov caij.
Tom qab ntawd qhov zoo ntawm graphite nqus cua sov kho hluav taws xob cua sov ntsiab lus
1) Kub kub tsis kam: lub melting point ntawm graphite yog 3850 ± 50 ℃ thiab boiling point yog 4250 ℃. Txawm hais tias nws raug kub hnyiab los ntawm ultra-siab kub arc, qhov poob qis yog me me thiab cov coefficient ntawm thermal expansion me me heev. Lub zog ntawm graphite nce nrog qhov nce ntawm qhov kub thiab txias. Thaum 2000 ℃, lub zog ntawm graphite yog ob npaug.
2) Conductivity thiab thermal conductivity: cov conductivity ntawm graphite yog 100 lub sij hawm siab tshaj ntawm cov minerals uas tsis yog hlau. Thermal conductivity tshaj cov hlau, hlau, txhuas thiab lwm yam ntaub ntawv hlau. Lub thermal conductivity txo nrog qhov nce ntawm qhov kub thiab txias. Txawm nyob rau ntawm qhov kub siab heev, graphite ua ib qho insulator. Graphite tuaj yeem ua hluav taws xob vim tias txhua cov pa roj carbon atom hauv graphite tsuas yog peb daim ntawv cog lus nrog lwm tuscarbonatoms, thiab txhua cov pa roj carbon atom tseem khaws ib qho hluav taws xob dawb los hloov cov nqi.
3) Lubricity: lub lubrication kev ua tau zoo ntawm graphite nyob ntawm qhov loj ntawm graphite nplai. Qhov loj ntawm qhov ntsuas, qhov me me ntawm kev sib txhuam coefficient, thiab qhov zoo ntawm lubrication kev ua tau zoo. Chemical stability:graphitemuaj tshuaj lom neeg ruaj khov zoo ntawm chav tsev kub thiab tuaj yeem tiv taus acid, alkali thiab organic hnyav corrosion.
4) Plasticity: graphite muaj qhov toughness zoo thiab tuaj yeem ua rau hauv cov ntawv nyias nyias. Thermal shock resistance: Thaum graphite siv nyob rau hauv chav tsev kub, nws tuaj yeem tiv taus qhov kub thiab txias tsis muaj kev puas tsuaj. Thaum qhov kub hloov pauv tam sim ntawd, qhov ntim ntawm graphite hloov me ntsis thiab tawg yuav tsis tshwm sim.
Thaum tsim thiab ua lub tshuab nqus tsev vacuum, peb yuav tsum xav txog tias qhov kev tiv thaiv ntawm cov hluav taws xob cua sov hloov me ntsis nrog qhov kub thiab txias thiab qhov kev tiv thaiv yog ruaj khov, yog li graphite yog cov khoom nyiam.
Post lub sij hawm: Nov-29-2021