Preparation method of novel drill bit

Abstract

The invention relates to the field of preparation of drill bits and in particular to a preparation method of a novel drill bit. The method comprises the following steps: a, selecting raw materials and mixing, wherein the raw materials comprise diamond powder, titanium powder, graphene, nickel, titanium dioxide and a catalyst; b, weighing the raw materials according to the composition of the raw materials in the step a; stirring the raw materials through a three-dimensional high-speed stirring and electromagnetic stirring mutual combination method; in a stirring process, carrying out electromagnetic stirring and then carrying out three-dimensional high-speed stirring; c, putting a carbon synthesis mold filled with the raw materials and the catalyst into a vacuum furnace to form a mold; d, putting a semi-finished product obtained by vacuumizing and heating in the step b into a diamond six-side anvil press machine and carrying out high-temperature and high-pressure synthesis; e, after finishing the high-temperature and high-pressure synthesis, relieving pressure; relieving the pressure to obtain a polycrystalline diamond compound; machining and molding the polycrystalline diamond compound to obtain a drill bit prototype; and d, machining and plating a film on the drill bit prototype so as to finish preparation.

Description

technical field [0001] The invention relates to the field of drill preparation, in particular to a preparation method of a novel drill. Background technique [0002] At present, diamond composite sheets are widely used in oil exploration drill bits. Oil exploration drill bits are mainly used for drilling in oil and gas fields. Diamond is known for its high hardness, high modulus of elasticity, and high thermal conductivity. At present, processing tools are mainly impregnated with single crystal diamond, and sintered polycrystalline diamond tools are booming. Sintered polycrystalline diamond is mainly a diamond composite sheet formed by a mixture of single crystal diamond particles and metal powder or by covering prefabricated alloy sheets on single crystal diamond particles. Polycrystalline Diamond Compound (PDC) has good wear resistance, thermal stability, compressive strength and impact toughness. However, the performance of producing diamond composite sheets and oil e...

AI Technical Summary

Problems solved by technology

However, the performance of producing diamond compacts by using existing technologies and then producing oil exploration drill bits cannot fully meet the needs of the industry, and there is an urgent need for a manufacturing method for drill bits with better performance.

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