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《Equipment for Geophysical Prospecting》 2007-03
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Experimental study on strengthening geophysical spiral drill by HVOF

Huang Zhiqiang,Wei Zhenqiang,Li Qin,Tan Li,Yang Maojun and Liu Shaobin  
The abrasion is main reason of effectiveness of spiral drill,and also the key factor affecting the useful life of drill pipe and drilling efficiency.In order to enhance the abrasion resistance of the spiral drill and on the basis of analyzing the effectiveness of drill pipe,three kinds of blanket test specimens are fabricated on A3 steel by HVOF in the paper.Using electron microscope to analyze the histology of the blanket and carry out the abrasion resistance correlation test.The research indicates that the YF112(spherical powder)blanket can obviously satisfies the superficial wear-resisting of the spiral drill;different abrasion alloy material has different capacity improving the abrasion resistance,it should synthetically consider according the practical situation and cost in order to meet the need of geophysical drilling in desert area.
【CateGory Index】: P634
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