Wear-resistant layer for guide sliding shoe of coal mining machine and preparation method of wear-resistant layer
The invention discloses a wear-resistant layer for a guide sliding shoe of a coal mining machine and a preparation method of the wear-resistant layer, the wear-resistant layer is obtained through fusion covering on the guide sliding shoe ZG35CrMo in an electric arc additive manufacturing mode, and i...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a wear-resistant layer for a guide sliding shoe of a coal mining machine and a preparation method of the wear-resistant layer, the wear-resistant layer is obtained through fusion covering on the guide sliding shoe ZG35CrMo in an electric arc additive manufacturing mode, and in the electric arc additive manufacturing process, wires adopted comprise, by mass, 3%-5% of C, 1.5%-2.6% of Si, 1.5%-2.5% of Mn, 26.0%-28.0% of Cr, 0.1%-1.1% of Ni, 3.0%-5.0% of W and the balance Fe. The preparation method of the wear-resistant layer comprises the following steps: (1) weighing element powder except iron according to the mass ratio of each component element of the wire, uniformly mixing the powder by using powder mixing equipment, and wrapping the mixed powder with an iron sheet by using a wire forming machine to obtain the wire used in additive manufacturing; and (2) carrying out cladding on the preheated surface of the guide sliding shoe by adopting an MAG electric arc additive manufacturing tech |
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