浸锑石墨与无压烧结SiC和3D打印SiC密封材料配对副的摩擦磨损特性研究

doi:10.11949/0438-1157.20240248

摘要/Abstract

摘要：

为研究干气密封用密封材料的摩擦学特性，采用销盘旋转试验台研究3种浸锑石墨在干摩擦条件下分别与无压烧结SiC和3D打印SiC配对时的摩擦磨损特性，探讨了速度、载荷对密封材料摩擦磨损特性的影响，揭示了配对副材料表面的磨损机理。结果表明：随着载荷p与速度v的乘积（pv值）的增大，摩擦系数和磨损率均呈现逐渐减小趋势；在pv值较小时磨损机理为严重的磨粒磨损和轻微的黏着磨损，在pv值较高时磨损主要发生在碳化硅摩擦表面粘附的石墨转移层间，磨损机理主要表现为黏着磨损；在研究pv值变化对浸锑石墨与SiC密封材料配对副摩擦磨损特性的影响时，首选定载荷变速度试验方法。

关键词: 密封材料, 浸锑石墨, 无压烧结SiC, 3D打印SiC, 摩擦磨损特性, 磨损机理

Abstract:

The properties of antimony impregnated graphite used in dry gas seal were studied by means of tribo-tester equipped with a rotating module. The effects of velocity and load on the friction and wear characteristics of the sealing materials were analyzed. Results show that the friction coefficient and wear rate gradually decreases with the increase of the product of load p and velocity v (pv value). When the pv value is low, the wear mechanism is severe abrasive wear and slight adhesive wear. The wear mechanism changes to adhesive wear if the pv value is high, which mainly occurs in the graphite transfer layer adhered to the surface of silicon carbide. In order to study the effect of pv value changes on the friction and wear characteristics of antimony impregnated graphite and silicon carbide sealing materials, the testing program which changes the velocity while fixing the load is preferable.

Key words: seal material, antimony impregnated graphite, pressureless sintered SiC, 3D-printed SiC, friction and wear behavior, wear mechanism

中图分类号:

TH117.1

柴杨洋, 彭旭东, 江锦波, 孟祥铠, 马艺. 浸锑石墨与无压烧结SiC和3D打印SiC密封材料配对副的摩擦磨损特性研究[J]. 化工学报, DOI: 10.11949/0438-1157.20240248.

Yangyang CHAI, Xudong PENG, Jinbo JIANG, Xiangkai MENG, Yi MA. Study on friction and wear behaviors of antimony impregnated graphite with pressureless sintered SiC and 3D-printed SiC sealing materials pairs[J]. CIESC Journal, DOI: 10.11949/0438-1157.20240248.

图/表 15

图1 销盘试样图

Fig.1 Pin and disk samples

表1 浸锑石墨的主要物理性能

Table 1 Physical properties of antimony impregnated graphite

材料

密度

g/cm³

硬度

抗折强度MPa

抗压强度MPa

杨氏模量

GPa

热膨胀系数

/℃

热导率

W/m·K

表2 碳化硅的主要物理性能

Table 1 Physical properties of silicon carbide

材料

密度

g/cm³

硬度

抗弯强度

MPa

弹性模量

GPa

热导率

W/m·K

图2 销盘圆周摩擦试验台示意图

Fig.2 Schematic of the pin-on-disk rotary test platform configuration employed

表3 变工况试验参数

Table 3 Variable operating condition test parameters

	速度v(m/s)	载荷p(MPa)	pv/(MPa·m/s)
定载荷变速度	1.0	2	2
	1.5		3
	2.0		4
	2.5		5
	3.0		6
定速度变载荷	2	1.0	2
		1.5	3
		2.0	4
		2.5	5
		3.0	6

图3 变工况条件下XY1与SS和LS配对副的干摩擦系数时变曲线under variable operating conditions

Fig.3 The dry friction coefficient time-varying curve of XY1 with SS and LS pairs

图4 浸锑石墨/SS配对副摩擦系数随速度/载荷的变化曲线

Fig.4 Variation curves of the friction coefficient of antimony impregnated graphite and SS pairs with velocity or load

图5 不同pv值下3种石墨与SS配对时的磨损率的变化

Fig.5 Effect of different pv values on the wear rate of three graphites with SS pairs

图6 CY1与SS对磨后的表面SEM图

Fig.6 The SEM diagram of CY1 with SS after wear

图7 浸锑石墨分别与SS和LS配对时的摩擦系数比较

Fig.7 Comparison of the friction coefficient of antimony impregnated graphite with SS and LS pairs

图8 浸锑石墨分别与SS和LS配对时的磨损率比较

Fig.8 Comparison of the wear rate of antimony impregnated graphite with SS and LS pairs

图9 石墨销磨损前的表面形貌

Fig.9 Surface topography of graphite pins before wear

图10 SS圆盘磨损前后的表面SEM图注:(a) 磨损前 (b) 磨损后(pv=2MPa·m/s) (c) 磨损后(pv=6MPa·m/s)

Fig.10 The SEM diagram of SS disk before and after wear

图11 LS圆盘磨损前后的表面SEM图注:(a) 磨损前 (b) 磨损后(pv=2MPa·m/s) (c) 磨损后(pv=6MPa·m/s)

Fig.11 The SEM diagram of LS disk before and after wear

图12 XY1与SS和LS对磨后的表面SEM图

Fig.12 The SEM diagram of XY1 with SS and LS pairs after wear

参考文献 36

1	Cao H, Liu Y, Lin C J. Failure analysis and transformation of hydrogen compressor dry gas seal[J]. Applied Mechanics and Materials, 2013, 331: 98-101.
2	Zardynezhad S. Achieve successful compressor startup by addressing dry-gas seal failure[J]. Hydrocarbon Processing, 2015, 94: 63-68.
3	孟祥铠, 彭旭东, 王乐勤. 瞬态启停机械密封轴对称动力学模型与密封行为分析[J]. 化工学报, 2011, 62(06): 1620-1625.
	Meng X K, Peng X D, Wang L Q. Axisymmetric dynamic model and seal behavior analysis of mechanical seals during startup and shutdown operation[J]. CIESC Journal, 2011, 62(06): 1620-1625.
4	彭旭东, 刘坤, 白少先, 等. 典型螺旋槽端面干式气体密封动压开启性能[J]. 化工学报, 2013, 64(01): 326-333.
	Peng X D, Liu K, Bai S X, et al. Dynamic opening characteristics of dry gas seals with typical types of spiral grooves[J]. CIESC Journal, 2013, 64(01): 326-333.
5	令成君. 干气密封接触摩擦机理研究[D]. 中国石油大学, 2009.
	Ling C J. Mechanism study on contacting friction of dry gas seal[D]. China University of Petroleum (EastChina), 2009.
6	姚新华, 何耀辉. 干气密封的选用及失效分析[J]. 润滑与密封, 2011, 36(04): 116-118+124.
	Yao X H, He Y H. The choice and failure analysis of dry gas seal[J]. Lubrication Engineering, 2011, 36(04): 116-118+124.
7	马宏军. 长输管线压缩机Burgmann干气密封国内维修技术探讨[J]. 油气田地面工程, 2019, 38(07): 60-66.
	Ma H J. Domestic repair technology discussion on burgmann dry gas seal used for the long distance transportation pipeline compressor[J]. Oil-Gas Field Surface Engineering, 2019, 38(07): 60-66.
8	Xu P, Wang Y, Cao X Q, et al. The tribological properties of DLC/SiC and DLC/Si3N4 under different relative humidity: The transition from abrasive wear to tribo-chemical reaction[J]. Ceramics International, 2021, 47(3): 3901-3910.
9	Fu H M, Fan X Q, Li W, et al. Tribological behaviors of fluid-lubricated DLC films under sliding and fretting conditions[J]. Applied Surface Science, 2018, 459(NOV.30): 411-421.
10	Erdemir A, Martin J M. Superior wear resistance of diamond and DLC coatings[J]. Current Opinion in Solid State and Materials Science, 2018, 22(6): 243-254.
11	王泽平, 毕晓明. 循环氢压缩机高压干气密封"硬对硬"摩擦副国产化技术分析[J]. 化工设备与管道, 2015, 52(03): 57-61.
	Wang Z P, Bi X M. Analysis of self-production technology used for "hard-to-hard" friction pair in high pressure dry gas seal in recycle hydrogen compressor[J]. Process Equipment & Piping, 2015, 52(03): 57-61.
12	Williams J A, Morris J H, Ball A. The effect of transfer layers on the surface contact and wear of carbon-graphite materials[J]. Tribology International, 1997, 30(9): 663-676.
13	Wang Q L, Hu Y F, He M. Effect of filler on the self-lubrication performance of graphite antimony composites[J]. Journal of China University of Mining and Technology, 2008, 18(3): 441-448.
14	郑娆, 付光卫, 赵祥, 等. 浸渍石墨/38CrMoAlA(喷涂)配对密封摩擦副的干摩擦性能[J]. 润滑与密封, 2020, 45(12): 52-59.
	Zheng R, Fu G W, Zhao X, et al. Dry friction properties of impregnated graphite/38CrMoAlA (Sprayed) paired sealing friction pair[J]. Lubrication Engineering, 2020, 45(12): 52-59.
15	于鸣泉, 王启立, 高晓峰, 等. 煤基浸锑石墨密封材料性能研究[J]. 润滑与密封, 2020, 45(12): 97-102.
	Yu M Q, Wang Q L, Gao X F, et al. Study on the properties of coal-based antimony graphite sealing materials[J]. Lubrication Engineering, 2020, 45(12): 97-102.
16	胡亚非, 刘颀, 蒋文武, 等. 3种浸锑石墨材料的摩擦磨损性能实验研究[J]. 煤炭学报, 2011, 36(02): 351-354.
	Hu Y F, Liu Q, Jiang W W, et al. Study of friction and wear properties on three kinds of antimony impregnated graphite[J]. Journal of China Coal Society, 2011, 36(02): 351-354.
17	何敏, 王启立, 孙智. 浸锑石墨摩擦磨损特性研究[J]. 润滑与密封, 2006(09): 155-156.
	He M, Wang Q L, Sun Z. Research on friction and wear behaviour of graphite/antimony composites[J]. Lubrication Engineering, 2006(09): 155-156.
18	彭旭东, 何良杰, 江锦波, 等. 浸酚醛树脂石墨/SiC密封材料摩擦学特性研究[J]. 中国机械工程, 2021, 32(11): 1283-1292.
	Peng X D, He L J, Jiang J B, et al. Study on tribological properties of phenolic resin impregnated graphite/SiC ceramic sealing materials[J]. China Mechanical Engineering, 2021, 32(11): 1283-1292.
19	倪成良, 江锦波, 彭旭东, 等. 浸酚醛树脂石墨与9Cr18不锈钢配副的摩擦磨损正交试验研究[J]. 流体机械, 2019, 47(04): 1-5+18.
	Ni C L, Jiang J B, Peng X D, et al. Orthogonal experimental study on tribological behavior of phenolic resin impregnated graphite-9Cr18 stainless steel friction pairs in a mechanical seal[J]. Fluid Machinery, 2019, 47(04): 1-5+18.
20	Zhao J Y, Li Y J, Liu Y, et al. Friction and wear performances of impregnated graphite in ring-on-ring tribological test[J]. Tribology International, 2022, 174: 107715.
21	应宗霖. 浸渍石墨材料与氮化钢配对的摩擦学特性研究[D]. 浙江工业大学, 2019.
	Ying Z L. Study on tribological properties of impregnated graphite pairing with nitriding steel[D]. Zhejiang University of Technology, 2019.
22	He R J, Zhou N P, Zhang K Q, et al. Progress and challenges towards additive manufacturing of SiC ceramic[J]. Journal of Advanced Ceramics, 2021, 10(4): 637-674.
23	Fu H, Zhu W, Xu Z F, et al. Effect of silicon addition on the microstructure, mechanical and thermal properties of Cf/SiC composite prepared via selective laser sintering[J]. Journal of Alloys and Compounds, 2019, 792: 1045-1053.
24	Yu S W, Zeng T, Pan X T, et al. Fabrication of Si3N4–SiC/SiO2 composites using 3D printing and infiltration processing[J]. Ceramics International, 2021, 47(20): 28218-28225.
25	Liu K, Wu T, Bourell D L, et al. Laser additive manufacturing and homogeneous densification of complicated shape SiC ceramic parts[J]. Ceramics International, 2018: 44(17): 21067-21075.
26	Li F F, Ma N N, Chen J, et al. SiC ceramic mirror fabricated by additive manufacturing with material extrusion and laser cladding[J]. Additive Manufacturing, 2022, 58: 102994.
27	周跃杰. 航空油泵轴端密封石墨材料相容性及摩擦学特性研究[D]. 浙江: 浙江工业大学, 2021.
	Zhou Y J. Compatibility and tribological characteristics of graphite materials for shaft end seal of aviation oil pump[D]. Zhejiang: Zhejiang University of Technology, 2021.
28	中华人民共和国工业和信息化部. 机械密封摩擦材料组合的[极限pcv值]试验方法: [S]. 北京: 机械工业出版社, 2022.
	Ministry of Industry and Information Technology of the People's Republic of China. Test method for [limiting pcv value] of seal friction material combination of mechanical seal: [S]. Beijing: China Machine Press, 2022.
29	周跃杰, 彭旭东, 江锦波, 等. 端面宽度对机械密封极限pcv(pressure×velocity)值的影响[J]. 摩擦学学报, 2022, 42(01): 176-186.
	Zhou Y J, Peng X D, Jiang J B, et al. Effects of end face width of mechanical seals on the limit pcv (pressure×velocity) value[J]. Tribology, 2022, 42(01): 176-186.
30	于鸣泉. 恶劣工况下浸渍石墨复合材料的润滑规律研究[D]. 中国矿业大学, 2021.
	Yu M Q. Study on lubrication law of impregnated graphite composites under bad working conditions[D]. China University of Mining and Technology, 2021.
31	王永胜, 兰小林, 邱天, 等. 铜基石墨烯复合催化剂的合成与表征[J]. 化工学报, 2020, 71(06): 2889-2899.
	Wang Y S, Lan X L, Qiu T, et al. Synthesis and characterization of copper-based graphene composite catalyst[J]. CIESC Journal, 2020, 71(06): 2889-2899.
32	何良杰. 机械密封用浸渍酚醛树脂石墨的摩擦学特性研究[D]. 浙江工业大学, 2021.
	He L J. Study on tribological behaviour of different types of impregnated phenolic graphites for a mechanical seal[D]. Zhejiang University of Technology, 2021.
33	Li K M, Yao Z Q, Hu Y X, et al. Friction and wear performance of laser peen textured surface under starved lubrication[J]. Tribology international, 2014, 77: 97-105.
34	中华人民共和国工业和信息化部. 机械密封用碳石墨密封环技术条件: [S]. 北京: 机械工业出版社, 2016.
	Ministry of Industry and Information Technology of the People's Republic of China. Specification for carbon-graphite sealing ring for mechanical seals: [S]. Beijing: China Machine Press, 2016.
35	Jin J, Peng X D, Jiang J B, et al. Frictional characteristics of impregnated graphite with different graphitization degree versus chromium stainless steel under varying PV values[J]. Tribology International, 2020, 146: 106063.
36	雒晓卫, 于溯源, 盛选禹, 等. IG-11石墨在不同气氛中的磨损性能研究[J]. 摩擦学学报, 2005(02): 173-177.
	Luo X W, Yu S Y, Sheng X Y, et. Wear behavior of graphite IG-11in different gas environments. Tribology, 2005(02): 173-177.

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