Method for preparing wear-resistant coating of resistance-reduction and torsion-reduction tool of large-displacement well through laser
A technology of extended-reach wells and wear-resistant coatings, applied in coatings, metal material coating processes, etc., can solve problems such as drill sticking, low bonding force, and twisting of drilling tools, so as to reduce costs and increase service life , the effect of excellent wear resistance and corrosion resistance
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[0031] A method and material for laser manufacturing a wear-resistant coating of a drag-reducing and torsion-reducing tool for an extended-reach well, including the following process.
[0032] (1) Wear-resistant coating processing and surface pretreatment of drag and torque reducing tools.
[0033] Use graphite steel or nodular cast iron with good strength and toughness to turn and process the wear-resistant coating surface of the drag-reducing and torque-reducing tool with a certain laser cladding size, degrease and rust the wear-resistant coating surface at room temperature, and clean it with alcohol clean.
[0034] (2) Selection of alloy powder and adjustment of automatic powder feeding device.
[0035] The selected alloy powder of the present invention is a nickel-based alloy powder, and its chemical composition weight percent is: C: 0.14%; Cr: 15.3%; Si: 1.12%; Fe: 1.81%; Mn: 0.34%; Mo: 1.06% ; B: 1.24%; the balance is Ni.
[0036] Preparation method of nickel base all...
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