The invention relates to the technical field of graphite material preparing, in particular to a preparing method of a copper-based inorganic nonmetal beta-Sialon ceramic carbon sliding strip material.Pitch coke serves as aggregate, B4C, SiC, Cu, carbon black and graphite powder serve as powder, modified coal tar pitch serves a bonding agent, liquid-state copper serves as an impregnating compound,through preheating, grinding, primary powder mixing, secondary powder mixing, wet mixing, mold pressing forming, roasting, copper immersing, secondary roasting, sintering, and subsequent treatment, aproduct is obtained, the volume density of the pantograph carbon sliding strip material is smaller than or equal to 3.8g/cm<3>, the fracture resistance is larger than or equal to 100, the compressionresistance strength is larger than or equal to 120, impact toughness is larger than or equal to 0.3J/cm<2>, the 20 DEG C specific resistance is smaller than or equal to 5 micro Ohm.m, and the HBS issmaller than or equal to 80.
本发明涉及石墨材料制备技术领域,更具体而言,涉及一种铜基无机非金属β‑Sialon陶瓷碳滑条材料制备方法,一沥青焦为骨料,以BC、SiC、Cu、炭黑、石墨粉为粉料,以改质煤沥青为粘接剂;以液态铜为浸渍剂,通过预热、研磨、一次混粉、二次混粉、湿混、模压成型、焙烧、浸铜、二次焙烧、烧结、后续处理得到的产品,所述受电弓碳滑条材料的其体积密度≤3.8g/cm、抗折强度≥100、抗压强度≥120、冲击韧性≥0.3J/cm、20℃电阻率≤5µΩ·m、洛氏硬度(HBS)≤80。
Preparing method of copper-based inorganic nonmetal beta-Sialon ceramic carbon sliding strip material
一种铜基无机非金属β-Sialon陶瓷碳滑条材料制备方法
2020-06-05
Patent
Elektronische Ressource
Chinesisch
Method for preparing pantograph carbon sliding strip material from copper-coated graphite powder
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