Tribology Performance of Surface Texturing Plunger

被引：12

作者：

Wei, Songbo ^{[1
]}

Shang, Hongfei ^{[2
]}

Liao, Chenglong ^{[1
]}

Huang, Junyuan ^{[1
]}

Shi, Bairu ^{[1
]}

机构：

[1] PetroChina Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China

[2] Tsinghua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China

来源：

BIOMIMETICS | 2019年 / 4卷 / 03期

关键词：

tribology performance; non-smooth surface; surface texturing; plunger; pumping unit; BEHAVIOR; STEEL;

D O I：

10.3390/biomimetics4030054

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Plunger pumps are widely used in oil pumping units around the world. The water content of the wellbore is increasing along with the development progress, so the lubricating capacity of the well fluids between the plunger and barrel is decreasing correspondingly. Commonly, the substrate material of the plunger and barrel are stainless steel, and the plunger surface is usually covered with nickel-based coating. Therefore, the performance of the plunger and barrel has been affected due to poor lubrication and eccentric wear. Non-smooth surfaces have been proven to improve the tribology performance in many cases. A surface texturing plunger covered with specific dimples has been prepared by using laser surface texturing technology. The morphology of the surface texturing plunger was characterized and analyzed. The tribology performance of surface texturing plunger samples was tested using standard friction and wear test machines with oil and water lubrication, respectively. The results indicated that surface texturing could effectively reduce the coefficient of friction, and the wear resistance of the surface textured samples has been improved to some extent.

引用

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