A kind of atomization preparation device of tial powder

Abstract

The invention discloses an atomizing preparing device for TiAl powder. The atomizing preparing device comprises a furnace body, a smelting chamber, an atomizing chamber and a collecting chamber, wherein the bottom of a crucible of the smelting chamber is connected to a liquid storage bag through a guide tube; the bottom of the liquid storage bag is connected to a central spray nozzle through a guide tube; the centrifugal spray nozzle is in the shape of a circular disc, and has a diameter of 10 cm; 4 liquid discharge holes are symmetrically formed in the outer side of the centrifugal spray nozzle; diameters of the liquid discharge holes are 3 cm; the opening direction of the liquid discharge holes is the normal direction of the circular disc; and solenoid valves which are electrically connected with a PLC control system in a wireless mode are arranged in the liquid discharge holes; pulsed type opening and closing is realized through a control system; four inert gas spray nozzles are correspondingly arranged at the periphery of the centrifugal spray nozzle; and inert gas spray nozzles are opposite to a throw-out direction of melt in liquid discharge holes when the centrifugal spray nozzle rotates; the collecting chamber is arranged below the atomizing chamber; and a cyclone separator and an ultrasonic vibrating sieve are arranged in the collecting chamber. The atomizing preparing device improves the crushing effect and improves uniformity degree of powder.

Description

technical field [0001] The invention belongs to the technical field of material processing, and in particular relates to an atomization preparation device of TiAl powder. Background technique [0002] Titanium alloy has low density, high strength, high hardness, strong high temperature resistance, high corrosion resistance and friction resistance, especially TiAl intermetallic compound because of its high specific strength, high specific stiffness, corrosion resistance, wear resistance and high temperature resistance As well as excellent oxidation resistance and other advantages, it is becoming one of the excellent candidate structural materials in the contemporary aerospace industry, civil industry and other fields, especially in the field of aeroengine blades, which has broad application prospects. 3D printing, or additive manufacturing, is a rapid prototyping process that has emerged in recent years. It adopts layer-by-layer powder coating, laser or electron beam melting ...

AI Technical Summary

Problems solved by technology

Part of the more advanced technology uses the centrifugal method to atomize the melt after being thrown out. In the process of using centrifugal throwing, the inventor has found through research that the blowing speed and angle of the gas in the atomization process after the melt is thrown out, the liquid The direction of the flow has an impact on the effect of atomization and the particle size of the powder after atomization, but the current centrifugal process adopts the method of blowing air after continuous centrifugation, which makes the particle size distribution of the prepared powder uneven

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