青岛持久高新材料有限公司

重点开发石墨条、石墨刮片、石墨盒、烧结盒、SIC涂层产品、 石墨盘、石墨块等石墨...

青岛持久高新材料有限公司

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重点开发石墨条、石墨刮片、石墨盒、烧结盒、SIC涂层产品、 石墨盘、石墨块等石墨材料
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冶金用石墨衬板
产品: 浏览次数:93冶金用石墨衬板 
品牌: 持久
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产地: 青岛
质量: 保证
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价格: 优惠
单价: 面议
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有效期至: 长期有效
最后更新: 2021-09-17 09:25
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石墨衬板


产品描述


1. 耐高温:石墨的熔点为2850±50℃,沸点为4250℃,即使经超高温电弧灼烧,重量的损失很小,热膨胀系数也很小。石墨强度随温度提高而加强,在2000℃时,石墨强度提高一倍。
2. 导电、导热性:石墨的导电性比一般非金属矿高一百倍。导热性超过钢、铁、铅铅等金属材料。导热系数随温度升高而降低,甚至在*高的温度下,石墨成绝热体。石墨能够导电是因为石墨中每个碳原子与其他碳原子只形成3个共价键,每个碳原子仍然保留1个自由电子来传输电荷。
3. 润滑性:石墨的润滑性能取决于石墨鳞片的大小,鳞片越大,摩擦系数越小,润滑性能越好。
4. 化学稳定性:石墨在有良好的化学稳定性,能耐酸、耐碱和耐有机溶剂的腐蚀。
5. 抗热震性:石墨在常温下使用时能经受住温度的剧烈变化而不致破坏,温度突变时,石墨的体积变化不大,不会产生裂纹。
石墨衬板具有导电性好、耐高温、抗酸、碱腐蚀和易加工等良好特性。
应用领域:广泛使用在冶金,化工、电化学等工业当中
产品规格:根据客户尺寸、使用环境的要求定制生产
包装方式:木箱或者木笼+托盘包装
交货期:5-10个工作日,具体根据订单数量而定



Graphite liner

Product description

1. High temperature resistance: the melting point of graphite is 2850 ± 50 , and the boiling point is 4250 . Even if the graphite is burned by ultra-high temperature arc, the weight loss is very small, and the coefficient of thermal expansion is also very small. The strength of graphite increases with the increase of temperature. At 2000 , the strength of graphite is doubled.

2. Conductivity and thermal conductivity: the conductivity of graphite is 100 times higher than that of ordinary non-metallic minerals. The thermal conductivity exceeds that of steel, iron, lead and other metal materials. The thermal conductivity decreases with the increase of temperature. Even at very high temperature, graphite becomes an insulator. Graphite can conduct electricity because each carbon atom in graphite only forms three covalent bonds with other carbon atoms, and each carbon atom still retains one free electron to transfer charge.

3. Lubricity: the lubricity of graphite depends on the size of graphite flake. The larger the flake is, the smaller the friction coefficient is, and the better the lubricity is.

4. Chemical stability: graphite has good chemical stability, and can resist acid, alkali and organic solvent corrosion.

5. Thermal shock resistance: when graphite is used at room temperature, it can withstand the drastic change of temperature without damage. When the temperature changes suddenly, the volume of graphite changes little and there will be no cracks.

Graphite liner has good properties such as good conductivity, high temperature resistance, acid and alkali corrosion resistance and easy processing.

Application: widely used in metallurgy, chemical industry, electronic chemistry and other industries

Product specifications: according to customer size, the use of environmental requirements for customized production

Packing method: wooden box or wooden cage + pallet packing

Delivery time: 5-10 working days, depending on the order quantity





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