Affiliation:
1. Xuzhou Institute of Technology
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.
Publisher
Trans Tech Publications, Ltd.
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