Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-strength wear-resistant carbon sliding plate for pantograph and preparation method thereof
The invention discloses a high-strength wear-resistant carbon sliding plate for a pantograph, which is prepared by kneading, extruding and roasting a dry powder mixture and liquid asphalt which accounts for 27-35% of the mass of the dry powder mixture, wherein the dry powder mixture is prepared by fully mixing the following raw materials in percentage by mass: 10%-30% of pitch coke particles witha particle size of 0.5-0.2 mm, 15%-30% of pitch coke particles with the particle size of 0.2-0 mm, 30%-40% of pitch coke powder, 5%-20% of graphite powder and 5%-10% of carbon black. The invention also discloses a preparation method thereof. According to the invention, the product performance is comprehensively considered, the raw materials of various particle sizes are reasonably configured, andthe basic performance of the product is improved from the raw material ratio; the kneading speed per hour and the kneading temperature are strictly controlled, so that the internal structural state ofthe product is improved; the compactness of the product is uniformized through pre-pressing extrusion forming, and the problem of internal cracking and layering is reduced; and through the design ofa roasting temperature rise curve, roasting deformation cracks are reduced, the configuration of filler avoids sand burning of the product, and the yield is improved, so that the structural performance of the pantograph carbon contact strip is improved on the whole, and various physicochemical indexes of the pantograph carbon contact strip reach the advanced level in China.
本发明公开了一种用于受电弓的高强度耐磨碳滑板，由干粉混合料与其质量27‑35％的液态沥青经混捏、挤压、焙烧后制得，所述干粉混合料由以下质量百分比的原料充分混合而成：0.5‑0.2mm粒度的沥青焦粒10％‑30％，0.2‑0mm粒度的沥青焦粒15％‑30％，沥青焦粉30％‑40％，石墨粉5％‑20％，碳黑5％‑10％。本发明还公开其制备方法。本发明从产品性能综合考虑，合理配置各品种粒级的原料，从原料配比上提高了产品基础性能；严格控制混捏时速和混捏温度，提高了产品内在结构状态；通过预压挤压成型均匀了产品密实度，减少了内裂分层问题；通过焙烧升温曲线的设计减少了焙烧变形裂纹和填充料的配置避免了产品粘砂，提高了成品率，从而从整体上改善了受电弓碳滑板的结构性能，使其各项理化指标达到国内先进水平。
High-strength wear-resistant carbon sliding plate for pantograph and preparation method thereof
The invention discloses a high-strength wear-resistant carbon sliding plate for a pantograph, which is prepared by kneading, extruding and roasting a dry powder mixture and liquid asphalt which accounts for 27-35% of the mass of the dry powder mixture, wherein the dry powder mixture is prepared by fully mixing the following raw materials in percentage by mass: 10%-30% of pitch coke particles witha particle size of 0.5-0.2 mm, 15%-30% of pitch coke particles with the particle size of 0.2-0 mm, 30%-40% of pitch coke powder, 5%-20% of graphite powder and 5%-10% of carbon black. The invention also discloses a preparation method thereof. According to the invention, the product performance is comprehensively considered, the raw materials of various particle sizes are reasonably configured, andthe basic performance of the product is improved from the raw material ratio; the kneading speed per hour and the kneading temperature are strictly controlled, so that the internal structural state ofthe product is improved; the compactness of the product is uniformized through pre-pressing extrusion forming, and the problem of internal cracking and layering is reduced; and through the design ofa roasting temperature rise curve, roasting deformation cracks are reduced, the configuration of filler avoids sand burning of the product, and the yield is improved, so that the structural performance of the pantograph carbon contact strip is improved on the whole, and various physicochemical indexes of the pantograph carbon contact strip reach the advanced level in China.
本发明公开了一种用于受电弓的高强度耐磨碳滑板，由干粉混合料与其质量27‑35％的液态沥青经混捏、挤压、焙烧后制得，所述干粉混合料由以下质量百分比的原料充分混合而成：0.5‑0.2mm粒度的沥青焦粒10％‑30％，0.2‑0mm粒度的沥青焦粒15％‑30％，沥青焦粉30％‑40％，石墨粉5％‑20％，碳黑5％‑10％。本发明还公开其制备方法。本发明从产品性能综合考虑，合理配置各品种粒级的原料，从原料配比上提高了产品基础性能；严格控制混捏时速和混捏温度，提高了产品内在结构状态；通过预压挤压成型均匀了产品密实度，减少了内裂分层问题；通过焙烧升温曲线的设计减少了焙烧变形裂纹和填充料的配置避免了产品粘砂，提高了成品率，从而从整体上改善了受电弓碳滑板的结构性能，使其各项理化指标达到国内先进水平。
High-strength wear-resistant carbon sliding plate for pantograph and preparation method thereof
用于受电弓的高强度耐磨碳滑板及其制备方法
ZANG WENPING (Autor:in) / WANG JIN (Autor:in) / ZHANG CHEN (Autor:in)
20.10.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
B60L
PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
,
Antrieb von elektrisch angetriebenen Fahrzeugen
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