Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing graphite electrode joint material by using isotropic coke
The invention relates to the technical field of electrode material preparation, in particular to a method for preparing a graphite electrode joint material by using isotropic coke, and the method adopts the isotropic coke as an aggregate, medium-temperature asphalt as an adhesive, and impregnated asphalt as an impregnant; by utilizing the characteristics that the physical and chemical properties of the isotropic coke in each isotropic finger object cannot be changed due to different directions, the isotropic coke has the characteristics of 'three high and one low ', namely high isotropy, highdensity, high strength, low porosity and small pores, the prepared graphite electrode joint material has the characteristics of high volume density, low resistivity, high mechanical strength, low ashcontent, low thermal expansion coefficient and the like. The volume density is larger than or equal to 1.75 g/cm < 3 >, the resistivity is smaller than or equal to 5.5 mu omega m, the elastic modulusis smaller than or equal to 16 GPa, the breaking strength is larger than or equal to 14 MPa, the thermal expansion coefficient is smaller than or equal to 2.2 * 10 <-6 >/DEG C, and the ash content issmaller than or equal to 0.25%.
本发明涉及电极材料制备技术领域，更具体而言，涉及一种利用各向同性焦制备石墨电极接头材料的方法，骨料采用等方焦，粘接剂采用中温沥青，浸渍剂采用浸渍沥青；利用各向同性焦在各个方各向同性指物体的物理、化学等方面的性质不会因方向的不同而有所变化的特性，及具有“三高一低”，即高各向同性、高密度、高强度、低孔隙率、小孔隙特点。制备石墨电极接头材料具有体积密度大、电阻率低、机械强度高、灰份低、热膨胀系数低等特点。其体积密度≥1.75g/cm，电阻率≤5.5μΩm，弹性模量≤16GPa，抗折强度≥14MPa，热膨胀系数≤2.2*10‑6/℃，灰分≤0.25%。
Method for preparing graphite electrode joint material by using isotropic coke
The invention relates to the technical field of electrode material preparation, in particular to a method for preparing a graphite electrode joint material by using isotropic coke, and the method adopts the isotropic coke as an aggregate, medium-temperature asphalt as an adhesive, and impregnated asphalt as an impregnant; by utilizing the characteristics that the physical and chemical properties of the isotropic coke in each isotropic finger object cannot be changed due to different directions, the isotropic coke has the characteristics of 'three high and one low ', namely high isotropy, highdensity, high strength, low porosity and small pores, the prepared graphite electrode joint material has the characteristics of high volume density, low resistivity, high mechanical strength, low ashcontent, low thermal expansion coefficient and the like. The volume density is larger than or equal to 1.75 g/cm < 3 >, the resistivity is smaller than or equal to 5.5 mu omega m, the elastic modulusis smaller than or equal to 16 GPa, the breaking strength is larger than or equal to 14 MPa, the thermal expansion coefficient is smaller than or equal to 2.2 * 10 <-6 >/DEG C, and the ash content issmaller than or equal to 0.25%.
本发明涉及电极材料制备技术领域，更具体而言，涉及一种利用各向同性焦制备石墨电极接头材料的方法，骨料采用等方焦，粘接剂采用中温沥青，浸渍剂采用浸渍沥青；利用各向同性焦在各个方各向同性指物体的物理、化学等方面的性质不会因方向的不同而有所变化的特性，及具有“三高一低”，即高各向同性、高密度、高强度、低孔隙率、小孔隙特点。制备石墨电极接头材料具有体积密度大、电阻率低、机械强度高、灰份低、热膨胀系数低等特点。其体积密度≥1.75g/cm，电阻率≤5.5μΩm，弹性模量≤16GPa，抗折强度≥14MPa，热膨胀系数≤2.2*10‑6/℃，灰分≤0.25%。
Method for preparing graphite electrode joint material by using isotropic coke
一种利用各向同性焦制备石墨电极接头材料的方法
WEI JIAN (Autor:in) / ZHANG JINJUN (Autor:in) / MIN JIE (Autor:in) / ZHANG PEILIN (Autor:in) / PANG ZHONGHAI (Autor:in) / WU JIANJUN (Autor:in) / LIU WEIKAI (Autor:in) / JI YONGLIANG (Autor:in) / XU BAOGUO (Autor:in) / LYU XINGBO (Autor:in)
10.04.2020
Patent
Elektronische Ressource
Chinesisch
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