Txhawm rau tiv thaiv kev puas tsuaj los ntawm oxidation ntawm flake graphite ntawm qhov kub thiab txias, nws yog ib qho tsim nyog yuav tsum nrhiav cov khoom siv los muab lub tsho rau cov khoom siv kub, uas tuaj yeem tiv thaiv cov flake graphite los ntawm oxidation ntawm qhov kub thiab txias. Yuav kom nrhiav tau hom flake graphite tiv thaiv oxidation lub tsho tiv no, peb yuav tsum xub tiv taus kub thiab compactness.
Zoo, zoo corrosion kuj, muaj zog oxidation kuj, siab hardness thiab lwm yam ntxwv. Furuite Graphite Xiaobian hauv qab no qhia txog txoj hauv kev los tiv thaiv flake graphite los ntawm kev oxidized ntawm qhov kub thiab txias:
1. Siv cov khoom siv nrog vapor siab tsawg dua 0.1333MPa (1650 * C) thiab kev ua haujlwm zoo.
2. Xaiv cov khoom siv iav theem uas ua tau raws li qhov yuav tsum tau ua raws li cov khoom siv sealing tus kheej, thiab ua kom nws dhau los ua cov khoom sib khi ntawm qhov kub thiab txias.
3. Raws li kev ua haujlwm ntawm tus qauv pub dawb lub zog ntawm cov tshuaj tiv thaiv nrog oxygen nrog qhov kub thiab txias, ntawm steelmaking kub (1650-1750 * C), cov ntaub ntawv uas muaj ntau dua affinity rau oxygen dua carbon-oxygen yog xaiv kom nyiam ntes oxygen, yog li raws li oxidize lawv tus kheej thiab tiv thaiv flake graphite. Tom qab oxidation, ib theem tshiab nrog ntim piv ntawm thawj theem yog generated.
Loj, uas yuav pab tau los thaiv lub sab hauv diffusion channel ntawm oxygen thiab tsim oxidation barrier.
4. Thaum ua haujlwm kub, muaj ntau qhov sib xyaw xws li Al2O3, SiO2 thiab Fe2O3 hauv molten steel tuaj yeem adsorbed, uas cuam tshuam nrog lawv tus kheej rau sinter, kom ntau yam kev suav nrog cov hlau molten maj mam nkag mus rau txheej.
oxidation kub ntawm flake graphite ua nyob rau hauv Tuam Tshoj yog 560815 ° C thaum cov ntsiab lus carbon yog 88% 96% thiab particle loj yog ntau tshaj 400 meshes. Ntawm lawv, thaum qhov me me ntawm graphite yog 0.0970.105mm, oxidation kub ntawm graphite nrog ntau dua 90% cov ntsiab lus carbon yog 600815 ° C thiab cov ntsiab lus carbon tsawg dua 90%.
oxidation kub ntawm tus number case yog 620790 C. Qhov zoo dua cov crystalline flake graphite yog, qhov siab dua qhov kub ntawm oxidation ncov, thiab qhov tsawg dua qhov oxidation poob yog kub.
Post lub sij hawm: Mar-20-2023