Kub kub thiab corrosion resistant, silica graphite crucible yog zoo meej rau hlau melting

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Ningbo VET Energy Technology Co., Ltd. yog lub tuam txhab high-tech tsim nyob rau hauv Suav teb.Peb yog cov chaw tsim khoom thiab cov chaw muag khoom ntawm Graphite silicide cov khoom.

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Siliconized graphite yog cov khoom sib xyaw uas silicon carbide txuas rau saum npoo ntawm graphite substrate.Nws muaj cov yam ntxwv ntawm siab hardness, siab mechanical zog thiab hnav tsis kam ntawm silicon carbide, nrog rau nws tus kheej-lubricating zog thiab thermal shock kuj ntawm graphite.Nws yog ib qho zoo tagnrho cov ntaub ntawv sib txhuam thiab cov khoom siv foob, haum rau kev sib khi ntawm ntau yam twj tso kua mis, roj twj, tshuaj twj, thiab bearings ntawm ntau yam high-ceev thiab high-load lub ntsiab twj.Tsis tas li ntawd, siliconized graphite muaj qhov zoo oxidation tsis kam, thermal poob siab tsis kam, porosity tsawg, thiab qee yam hluav taws xob conductivity, thiab tuaj yeem siv los ua cov ntaub ntawv xws li hlau smelting crucibles thiab cov hlab ntsha.

Cov muaj pes tsawg leeg ntawm siliconizedgraphite yog ib yam, qhov saum npoo yog zoo ib yam nrog rau sab hauv, thiab muaj pes tsawg leeg ntawm silicon carbide thiab graphite yog adjustable.Qhov siab dua cov ntsiab lus ntawm silicon carbide, qhov ntau dua qhov ntom ntawm cov khoom, qhov siab dua lub zog compressive, thiab cov resistivity nce.

Metallographic duab ntawm siliconizedgraphite

(qhov dub yog graphite, qhov grey yog silicon carbide, thiab qhov dawb yog silicon)

硅化石墨主要技术指标 Cov ntsiab lus tseem ceeb ntawm Siliconized graphite
类别 Yam khoom	指标 Tus nqi
密度 Qhov ntom	2.4-2.9g / cm³
孔隙率 Porosity	<0.5%
抗压强度Compressive zog	> 400MPa
抗折强度 Flexural zog Flexural zog	> 120MPa
热导率 Thermal conductivity	120 W / mK
热膨胀系数Thermal expansion coefficient	4.5 × 10^-6
弹性模量Elastic modulus	120 GP ua
冲击强度Kev cuam tshuam lub zog	1.9 KJ/m²
Dej lubricated kev sib txhuam	0.005 ib
干摩擦系数Qhuav kev sib txhuam coefficient	0.05 Nws
化学稳定性 Tshuaj stability	各种盐，有机溶剂，强酸(HF, HCl, H₂SO₄HNO ₃) Ntau cov ntsev, cov kuab tshuaj organic, muaj zog acids (HF, HCl, H₂SO₄HNO ₃)
长期稳定使用温度 Lub sij hawm ntev ruaj khov siv kub	800 ℃ (氧化气氛), 2300 ℃ (惰性或真空气氛) 800 ℃ (oxidizing cua), 2300 ℃ (inert lossis nqus cua)
电阻率 Hluav taws xob resistivity	120 × 10^-6Ωm