Study on Wear Behavior of Plasma Arc Cladding of Tunneling Machine Pick

Abstract:

The working environment of tunneling machine is very harsh. In the high-impact, high-stress, and high abrasion conditions, the cutting pick is a large number of wearing parts in the tunneling process. In this experiment, the tooth head of the cutting pick which was welded by furnace brazing was strengthened by plasma arc powder surfacing with F30 alloy powder, then analyse the surface topography and component, the hardness distribution from the surfacing layer to the interior of the matrix, the friction and wear properties of the surfacing layer, study the microstructure of grinding marks, and the wear mechanism. So as to improve the wear resistance of the cutting pick, to solve the wear failure, and provide a good reference for extending the service life.

• Periodical: Advanced Materials Research (Volume 886)
• Pages: 105-108
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.886.105
• Online since: January 2014
• Authors: Ning Zhang*, Na Shi, Min He, Feng Yang, Hao Chen
• Keywords: Cutting Pick, Plasma Surfacing, Wear Behavior

References

[1] B Edenhofer, W Gräfen, J Müller-Ziller. Plasma carburising a surface heat treatment process for the new century[J]. Surface and Coatings Technology, 2001, 142–144: 225-234.

DOI: 10.1016/s0257-8972(01)01136-7

[2] Ning Zhang, Li Yang, Feng Yang, etc. Study on Microstructure and Properties of Plasma Arc surfacing Layer for cutting Pick[J]. Applied Mechanics and Materials, 2013, 387: 231-234.

DOI: 10.4028/www.scientific.net/amm.387.231

[3] R.L. Sun, J. Emao, D.Z. Yang. Microstructural characterization of NICrlBsiC laser clad layer on titanium anoy substrate[J]. Surface and Coatings Technology, 2002, (150): 199-204.

DOI: 10.1016/s0257-8972(01)01512-2

[4] Ning Zhang, Huanhuan Niu, Yinghuai Qiang, etc. Property Study on Shearer Picks brazed by Water soluble Copper brazing Agent[J]. Hot Working Technology, 2013, 42(21): 194-196.

[5] Cang Wang, Jizhi Zhou. The Influence of Welding Process on Mechanical Property and Metallurgical Structure of Weld Joint for Austenite-ferrite Duplex Stainless Steel[J]. Journal of Xuzhou Istitute of Technology, 2011, 26(2): 76-79.

[6] Ning Zhang, Jinguo Ge, Li Yang, etc. Development of Shearer Picks brazed by Copper brazing Agent and Property Study on brazing[J]. Advanced Materials Research, 2013, 791: 710-713.

DOI: 10.4028/www.scientific.net/amr.791-793.710

[7] Chunhong Zhang, Ning Zhang, Wang Yue, etc. Development of Shearer Picks brazed by Copper brazing Agent and Property Study on brazing[J]. Coal Mine Machinery, 2013, 34(10): 124-125.

DOI: 10.4028/www.scientific.net/amr.791-793.710