Qhov cuam tshuam ntawm graphite ceev ntawm kev ua haujlwm electrode feem ntau yog pom tseeb hauv cov hauv qab no:
- Lub Zog Kho Tshuab thiab Porosity
- Kev sib raug zoo ntawm qhov ceev thiab lub zog kho tshuab: Kev ua kom qhov ceev ntawm cov electrodes graphite txo qhov porosity thiab ua kom lub zog kho tshuab zoo dua. Cov electrodes ceev ceev zoo dua tiv taus cov kev cuam tshuam sab nraud thiab kev ntxhov siab thermal thaum lub sijhawm hluav taws xob arc furnace smelting lossis hluav taws xob discharge machining (EDM), txo qis kev pheej hmoo ntawm kev tawg lossis spalling.
- Kev cuam tshuam ntawm porosity: Cov electrodes uas tsis muaj zog, nrog rau porosity siab, feem ntau yuav nkag mus rau hauv electrolyte tsis sib npaug, ua rau cov electrode hnav sai dua. Qhov sib txawv, cov electrodes uas muaj zog siab ua rau lub neej ua haujlwm ntev dua los ntawm kev txo cov porosity.
- Kev Tiv Thaiv Oxidation
- Kev sib raug zoo ntawm qhov ceev thiab kev tiv thaiv oxidation: Cov electrodes graphite uas muaj qhov ceev siab muaj cov qauv crystalline uas tuab dua, thaiv kev nkag mus rau hauv cov pa oxygen thiab ua rau qeeb qeeb ntawm cov nqi oxidation. Qhov no yog qhov tseem ceeb hauv cov txheej txheem smelting lossis electrolysis kub siab, txo kev siv electrode.
- Daim ntawv thov scenario: Hauv hluav taws xob arc furnace steelmaking, high-density electrodes txo qhov kev txo qis los ntawm oxidation, tswj kev ruaj khov tam sim no conduction efficiency.
- Kev Tiv Thaiv Kev Kub Ntxhov thiab Kev Ua Haujlwm Thermal
- Kev sib pauv ntawm qhov ceev thiab kev tiv taus thermal shock: Qhov ceev ntau dhau yuav txo qhov kev tiv taus thermal shock, ua rau muaj kev tawg ntau dua thaum muaj kev hloov pauv kub sai. Piv txwv li, hauv EDM, cov electrodes uas muaj qhov ceev tsawg qhia tau tias muaj kev ruaj khov ntau dua vim lawv cov coefficient nthuav dav thermal qis dua.
- Kev ntsuas kev ua kom zoo dua: Txhim kho kev ua kom sov los ntawm kev nce qhov kub ntawm graphitization (piv txwv li, ntawm 2800 ° C txog 3000 ° C) lossis siv koob coke ua cov khoom siv raw los txo qhov coefficient ntawm kev nthuav dav thermal tuaj yeem txhim kho kev tiv thaiv thermal shock thaum tswj hwm qhov ceev.
- Kev Ua Hluav Taws Xob thiab Kev Siv Tau
- Qhov Ceev thiab Kev Ua Hluav Taws Xob: Qhov ua hluav taws xob ntawm cov electrodes graphite feem ntau nyob ntawm qhov ua kom zoo ntawm cov qauv crystalline es tsis yog qhov ceev xwb. Txawm li cas los xij, cov electrodes ceev ceev feem ntau muab cov kev hloov pauv tam sim no sib xws dua vim muaj porosity tsawg dua, txo qhov kub hnyiab hauv zos.
- Kev Siv Tau Hauv Kev Siv Tshuab: Cov electrodes graphite uas tsis muaj qhov hnyav ntau yog cov mos dua thiab yooj yim dua rau kev siv tshuab, nrog rau kev txiav ceev 3-5 npaug sai dua li cov electrodes tooj liab thiab tsawg kawg nkaus hnav cov cuab yeej. Txawm li cas los xij, cov electrodes uas muaj qhov hnyav ntau zoo tshaj plaws hauv kev ruaj khov ntawm qhov ntev thaum lub sijhawm ua haujlwm raug.
- Kev Hnav Hluav Taws Xob thiab Kev Siv Nyiaj Zoo
- Qhov Ceev thiab qhov hnav sai: Cov electrodes uas muaj qhov ceev siab tsim cov txheej tiv thaiv (piv txwv li, cov pa roj carbon uas lo rau) thaum lub sijhawm ua haujlwm tawm, them rau qhov hnav thiab ua tiav "xoom hnav" lossis hnav tsawg. Piv txwv li, hauv EDM ntawm cov khoom ua haujlwm carbon steel, lawv qhov hnav sai tuaj yeem qis dua 30% dua li ntawm cov electrodes tooj liab.
- Kev tshuaj xyuas tus nqi thiab cov txiaj ntsig: Txawm hais tias tus nqi khoom siv raw khoom siab dua, cov electrodes ceev ceev txo cov nqi siv tag nrho vim lawv lub neej ntev thiab hnav tsawg, tshwj xeeb tshaj yog hauv kev ua pwm loj.
- Kev Txhim Kho Rau Cov Ntawv Thov Tshwj Xeeb
- Cov roj teeb lithium-ion anodes: Qhov ceev ntawm cov kais dej ntawm cov graphite anodes (1.3–1.7 g/cm³) cuam tshuam ncaj qha rau lub zog ntawm lub roj teeb. Qhov ceev ntawm cov kais dej siab dhau ua rau cov ion tsis txav mus los, txo qhov ua tau zoo ntawm tus nqi, thaum qhov ceev tsawg dhau ua rau cov hluav taws xob conductivity txo qis. Kev sib npaug ntawm kev ua tau zoo yuav tsum tau ua kom qhov loj ntawm cov khoom me me thiab kev hloov kho qhov chaw.
- Cov khoom siv neutron moderators hauv cov reactors nuclear: Cov graphite ceev ceev (piv txwv li, qhov ceev theoretical ntawm 2.26 g / cm³) ua kom zoo dua cov ntu ntawm neutron scattering, txhim kho kev ua haujlwm ntawm cov tshuaj tiv thaiv nuclear thaum tswj kev ruaj khov tshuaj lom neeg.
Lub sijhawm tshaj tawm: Lub Xya Hli-08-2025