等静压成型对多孔聚酰亚胺保持架成孔性能的影响研究

doi:10.3901/JME.2022.16.178

机械工程学报 ›› 2022, Vol. 58 ›› Issue (16): 178-188.doi: 10.3901/JME.2022.16.178

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等静压成型对多孔聚酰亚胺保持架成孔性能的影响研究

徐明坤^1,2, 郭丽和¹, 周宁宁³, 王超¹, 王廷梅^1,2, 卿涛³, 张激扬³, 陶立明¹, 王齐华^1,2

1. 中国科学院兰州化学物理研究所材料磨损与防护重点实验室兰州 730000;
2. 中国科学院大学材料与光电研究中心北京 100049;
3. 北京控制工程研究所精密转动和传动机构长寿命技术北京市重点实验室北京 100094

收稿日期:2021-12-25 修回日期:2022-06-11 出版日期:2022-08-20 发布日期:2022-11-03
通讯作者: 陶立明(通信作者)，男，1981年出生，博士，副研究员。主要研究方向为高性能特种工程塑料在摩擦、润滑、密封及防护领域中的应用。E-mail：taolm@licp.cas.cn
作者简介:徐明坤，男，1994年出生。主要研究方向为聚合物复合材摩擦磨损行为。E-mail：xumk@licp.cas.cn
基金资助:
国家自然科学基金(51935006)、精密转动和传动机构长寿命技术北京市重点实验室开放基金(BZ0388201701)和中国科学院西部之光资助项目

Influence of Isostatic Press on the Pore Properties of Porous Oil-containing Polyimide Retainer

XU Mingkun^1,2, GUO Lihe¹, ZHOU Ningning³, WANG Chao¹, WANG Tingmei^1,2, QING Tao³, ZHANG Jiyang³, TAO Liming¹, WANG Qihua^1,2

1. Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000;
2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049;
3. Beijing Key Laboratory of Long-life Technology of Precise Rotation and Transmission Mechanisms, Beijing Institute of Control Engineering, Beijing 100094

Received:2021-12-25 Revised:2022-06-11 Online:2022-08-20 Published:2022-11-03

摘要/Abstract

摘要： 针对空间高精密轴承用多孔聚酰亚胺保持架的等静压成型要求，开展了聚酰亚胺模塑粉的等静压法制备多孔材料的成型工艺研究。从聚酰亚胺模塑粉自身的结构特性、包套软硬质地、冷、热等静压成型工艺调控(温度、压强、时间)等角度，系统研究了结构因素和冷、热等静压工艺因素对多孔聚酰亚胺材料成孔性能的影响，并通过其微观形貌演变提出了聚酰亚胺模塑粉在冷等静压过程中的主要致密化机制为前期的粒子靠近及重排和中后期的剪切变形，在热等静压过程中主要致密化机制为高温高压下的剪切变形和塑性变形，同时利用封存其中的气体受热膨胀实现扩孔，结果表明，冷等静压工艺对最终多孔聚酰亚胺材料的成孔性能的影响更为根本，热等静压的最高温度提高和保压时间延长有利于获得更大的孔径，为后续采用等静压法制备多孔含油保持架材料并根据应用条件进行成孔性能的精确调控提供了科学依据。

关键词: 聚酰亚胺, 轴承保持架, 冷等静压, 热等静压, 成孔性能

Abstract: In order to meet the requirements of isostatic pressing for porous polyimide retainer used in high precision bearing, the forming process of porous polyimide material prepared by isostatic pressing of molding powder is studied. The effect of structural factors and technological factors of cold and hot isostatic press on the pore properties of porous polyimide materials are studied systematically, from the point of view of polyimide structural property, the softness and hardness of package, and hot isostatic pressing process control (temperature, pressure, time). The main densification mechanism of polyimide molding powder in cold isostatic pressing process is particle approaching and rearrangement in the early stage, and shear deformation in the middle and late stage. In the hot isostatic pressing process, the main densification mechanism is shear deformation and plastic deformation under high temperature and high pressure at the same time. The expansion of sealed gas in the pores lead to the enlargement of pore diameter. The results show that the increase of the maximum temperature and holding time of hot isostatic pressing is beneficial to obtain larger pore size, and the effect of cold isostatic pressing process on the pore properties of porous polyimide is more fundamental. This study provides a scientific basis for the subsequent preparation of porous oil-bearing retainer materials by isostatic pressing and the precise regulation of pore properties according to the application conditions.

Key words: polyimide, bearing retainer, cold isostatic press, hot isostatic press, pore property

中图分类号:

TH133

徐明坤, 郭丽和, 周宁宁, 王超, 王廷梅, 卿涛, 张激扬, 陶立明, 王齐华. 等静压成型对多孔聚酰亚胺保持架成孔性能的影响研究[J]. 机械工程学报, 2022, 58(16): 178-188.

XU Mingkun, GUO Lihe, ZHOU Ningning, WANG Chao, WANG Tingmei, QING Tao, ZHANG Jiyang, TAO Liming, WANG Qihua. Influence of Isostatic Press on the Pore Properties of Porous Oil-containing Polyimide Retainer[J]. Journal of Mechanical Engineering, 2022, 58(16): 178-188.

参考文献

[1] ZHANG Di, WANG Chao, QING Tao, et al. Research progress of porous polymer bearing retainer materials used in aerospace[J]. Journal of Mechanical Engineering, 2018, 54(9): 17-26. 张迪, 王超, 卿涛, 等. 空间用多孔聚合物轴承保持架材料研究进展[J]. 机械工程学报, 2018, 54(9): 17-26.
[2] SUN Xiaobo, WANG Feng, GE Shijun, et al. Long-life lubricating technology for bearings used in aerospace[J]. Bearing, 2012(3): 60-64. 孙小波, 王枫, 葛世军, 等. 航天长寿命轴承润滑技术[J]. 轴承, 2012(3): 60-64.
[3] FUSARO R L. Preventing spacecraft failures due to tribological problems[R]. NASA/TM-2001-210806, 2001.
[4] RUAN Hongwei, ZHANG Shaohua, WANG Tingmei, et al. On wear mechanism of porous polyimide oil-containing bearing cage[J]. Aerospace Control and Application, 2019, 45(3): 64-70. 阮洪伟, 张韶华, 王廷梅, 等. 多孔聚酰亚胺含油轴承保持架的磨损机理研究[J]. 空间控制技术与应用, 2019, 45(3): 64-70.
[5] GE Shidong, DENG Sier, XIA Xintao. Study on moisture-absorbing characteristics of porous polyimide cages[J]. Bearing, 2005(2): 20-22. 葛世东, 邓四二, 夏新涛. 多孔聚酰亚胺保持架吸湿特性研究[J]. 轴承, 2005(2): 20-22.
[6] SUN Xiaobo, WANG Zijun, WANG Feng. Polyimide materials for bearing cages[J]. Bearing, 2013(9): 54-57, 62. 孙小波, 王子君, 王枫. 轴承保持架用聚酰亚胺材料[J]. 轴承, 2013(9): 54-57, 62.
[7] ZHANG D, WANG T M, WANG Q H, et al. Selectively enhanced oil retention of porous polyimide bearing materials by direct chemical modification[J]. Journal of Applied Polymer Science, 2017, 134(29): 45106.
[8] WEI Jiaping, SUN Xiaobo, XIE Pengfei, et al. The influence of forming process on the properties of porous polyimide composites[J]. Bearing, 2013(11): 33-35. 魏佳平, 孙小波, 谢鹏飞, 等. 成形工艺对多孔聚酰亚胺复合材料性能的影响[J]. 轴承, 2013(11): 33-35.
[9] WANG Zijun, GE Shijun, WANG Feng, et al. Porous polyimide cage materials and its molding process: China, 1562607A[P]. 2005-01-12. 王子君, 葛世军, 王枫, 等. 多孔聚酰亚胺保持架材料及成型工艺: 中国, 1562607A[P]. 2005-01-12.
[10] WANG J Q, ZHAO H J, HUANG W, et al. Investigation of porous polyimide lubricant retainers to improve the performance of rolling bearings under conditions of starved lubrication[J]. Wear, 2017, 380-381: 52-58.
[11] QIU Youxiang, WANG Qihua, WANG Chao, et al. Oil containing and tribological properties of porous polyimide containing lubricant oil[J]. Tribology, 2012, 32(6): 538-543. 邱优香, 王齐华, 王超, 等. 多孔聚酰亚胺含油材料的储油性能及摩擦学行为研究[J]. 摩擦学学报, 2012, 32(6): 538-543.
[12] SINGH R, PUJARI V K, RUSHKIN I L. Method of forming an article from non-melt processible polymers and articles formed thereby. China, 102741030B[P]. 2015-11-25. R·辛格, V·K·布加瑞, I·L·拉什金. 由不可熔融加工的聚合物形成物品的方法以及由此形成的物品, 中国, 102741030B[P]. 2015-11-25.
[13] MA Fukang. Isostatic technology[M]. Beijing: Metallurgical Industry Press, 1992. 马福康. 等静压技术[M]. 北京: 冶金工业出版社, 1992.
[14] SHI Yusheng. Hot isostatic pressing integral forming technology of complex metal parts[M]. Wuhan: Huazhong University of Science & Technology Press, 2017. 史玉升. 复杂金属零件热等静压整体成形技术[M]. 武汉: 华中科技大学出版社, 2017.
[15] JIANG Zhuoyu, ZHANG Peng, BAO Jianwen, et al. Simulation and verification of cold isostatic molding of linear polyimide Powder[J]. Aerospace Materials & Technology, 2017(6): 25-28. 姜卓钰, 张朋, 包建文, 等. 线性聚酰亚胺粉末冷等静压成型模拟及验证[J]. 宇航材料工艺, 2017(6): 25-28.

等静压成型对多孔聚酰亚胺保持架成孔性能的影响研究

Influence of Isostatic Press on the Pore Properties of Porous Oil-containing Polyimide Retainer

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