首页|CR 200J用树脂基摩擦材料的正交试验及多指标加权优选

CR 200J用树脂基摩擦材料的正交试验及多指标加权优选

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为制备CR 200J用高耐磨树脂基摩擦材料,采用正交试验法设计不同含量的减摩组分(鳞片石墨、石油焦)与增摩组分(NFJ高温黏结剂、腰果壳油摩擦粉)的树脂基摩擦材料配方.通过热压成型法制备出样品,在制动压力0.8 MPa和转速3 300、4 200、5 400 r/min下测试试样的平均摩擦因数,并计算试样的体积磨损率、热衰退性能及对偶质量磨损.对试样的平均摩擦因数、体积磨损率、热衰退性能及对偶质量磨损进行极差分析及均一化处理,使用多指标权重优选了综合性能优异的配方.结果表明:鳞片石墨在高转速下对材料的平均摩擦因数起稳定作用及降低材料的热衰退性能,而石油焦在低速制动过程中可稳定材料的平均摩擦因数;NFJ高温黏结剂对材料的各项性能影响不显著,而腰果壳油摩擦粉在高转速下表现出优异的黏弹性,有利于提高材料的平均摩擦因数,降低材料的体积磨损率及对偶质量磨损.使用多指标权重优选得到较好的配方,其中鳞片石墨、石油焦、NFJ高温黏结剂、腰果壳油摩擦粉的质量分数分别为1％、4％、3％、6％.
Orthogonal Test and Multi Index Weighted Optimization of Resin Based Friction Materials for CR 200J
To explore the high wear-resistant resin based friction materials used for CR 200J,nine resin based friction material formulations with different content of friction reducing components(flake graphite,petroleum coke)and friction increasing components(NFJ high-temperature binder,cashew shell oil friction powder)were designed using orthogonal experimental method.The sample was prepared by thermoforming method,and the average friction coefficient of the sam-ples was tested at braking pressure of 0.8 MPa and rotational speeds of 3 300 r/min,4 200 r/min,and 5 400 r/min.The volume wear rate,thermal degradation performance,and dual mass wear of the samples were calculated.Perform range anal-ysis and homogenization treatment on the average friction coefficient,volume wear rate,thermal degradation performance,and dual mass wear of the samples were carried out,and the formula with excellent comprehensive performance was selected using multiple index weights.The results indicate that flake graphite has a stabilizing effect on the average friction coeffi-cient of resin based friction materials and reduces their thermal degradation performance at high rotational speeds,while the petroleum coke has a stabilizing effect on the average friction coefficient of resin based friction materials during low-speed braking.The NFJ high-temperature binder has no significant effect on the various properties of resin based friction materi-als,while the cashew shell oil friction powder exhibits excellent viscoelasticity at high rotational speeds,which is beneficial for improving the average friction coefficient of the materials,reducing the volume wear rate and dual mass wear of the ma-terials.The optimal formula was obtained by using multiple indicator weights,with a combination of mass fraction of 1％flake graphite,4％petroleum coke,3％NFJ high-temperature binder,and 6％cashew shell oil friction powder.

resin based friction materialfriction and wear performanceorthogonal test methodmulti-index weight opti-mizationthermal recession performance

孙辉、王秀飞、陈少华、尹彩流、蒙洁丽

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广西民族大学材料与环境学院,广西先进结构材料与碳中和重点实验室,广西南宁 530105

广西民族大学材料与环境学院,广西高校环境友好材料及碳中和新技术重点实验室,广西南宁 530105

北京优材百慕航空器材有限公司,北京 100095

树脂基摩擦材料 摩擦磨损性能 正交试验法 多指标权重优选 热衰退性能

广西自然科学基金国家级大学生创新创业训练计划广西民族大学校级科研项目广西民族大学校级科研项目

2019GXNSFAA1850522021106080012019KJYB0022020KJYB001

2024

10.3969/j.issn.0254-0150.2024.03.023

润滑与密封
中国机械工程学会 广州机械科学研究院有限公司

润滑与密封

CSTPCD北大核心
影响因子：0.478
ISSN：0254-0150
年,卷(期)：2024.49(3)
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