Molybdenum-iron-boron ternary alloy metal and ceramic drill bit

Abstract

The invention relates to a molybdenum-iron-boron ternary alloy metal and ceramic drill bit, which is a novel drilling tool manufactured by refining molybdenum, iron and boron in a certain proportion and sintering the refined molybdenum, iron and boron with other metal materials to produce metal ceramic, processing the metal ceramic into a ball or sheet to be welded with a drill bit skirt body. A molybdenum-iron-boron ternary alloy metal and ceramic drilling tool is jointly developed by Hubei Jiayu Pipe (Group) Co., Ltd., China University of Geosciences and Xi'an Technological University, and is widely used in steel companies for blast furnace iron notch opening and mine rock drilling. The molybdenum-iron-boron ternary alloy metal and ceramic drill bit is light, low in price and high in performance to price ratio and saves a large amount of valuable tungsten metal resource.

Description

Technical field [0001] The invention relates to a drill bit, in particular to a molybdenum-iron-boron ternary alloy cermet drill bit. Background technique [0002] At present, under the severe wear of rocks, the erosion of high-pressure water (air) flow and the corrosion of pit water, the drill bits of blast furnace opening machines and the ball-toothed drill bits for mines are subjected to tension, compression, bending, twisting and rock drilling at 2000 per minute. -9000 times of high-frequency impact, each impact rate is as high as 50-500 joules, and often fails by methods such as stress corrosion fatigue fracture. The drill bit is a consumable tool with the harshest stress conditions and the shortest service life among all human mechanical tools. It is a necessary high-tech consumable tool for basic industries. "Plan" (NADET plan), believes that drilling and mining technology plays a key role in the basic industrial sectors that provide raw materials, energy, modern civ...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings that the existing drill bits cannot bear the tension, compression, bending, torsion and high-frequency impact during the working process for a long time, and often fail by methods such as stress corrosion fatigue fracture, the invention provides a molybdenum-iron-boron ternary alloy metal Ceramic drill bit, the drill bit is obtained by combining molybdenum, iron, boron and other non-metallic substances in a certain proportion, after ultrafine treatment and sintering, a ternary alloy cermet with good toughness and wear resistance is obtained; and then Process the obtained ternary alloy cermets into spherical or flakes for the production of drill bits for blast furnace opening machines and ball-tooth drill bits for mines