3D printing metal powder material manufacturing equipment and method

Abstract

The invention provides a 3D printing metal powder material manufacturing equipment and method. The 3D printing metal powder material manufacturing equipment comprises a feeding device, a smelting device, an atomization device and a powder collection system. The feeding device, the smelting device and the atomization device are arranged from top to bottom in sequence, and a discharging hole of theatomization device is connected with a feeding hole of the powder collection system through a pipeline to output metal powder. A mode of no crucible high-frequency induction heating is adopted to smelt pre-alloyed bar materials, 3D printing metal powder with a high melting point and high purity nickel, titanium and niobium alloys can be prepared.

Description

technical field [0001] The present invention relates to manufacturing equipment and material manufacturing methods for metal powder materials, more specifically to a new type of high-efficiency preparation of high-purity, high-melting point 3D printing metal powder material manufacturing equipment and a new type of high-efficiency preparation of high-purity, high melting point The field of 3D printing metal powder material manufacturing methods. Background technique [0002] 3D printing technology is hailed as the third industrial technological revolution. Seeking one or more processes and complete sets of technical equipment suitable for the preparation of metal 3D printing powder materials is one of the key problems to be solved in the 3D printing industry. At present, most of the domestic metal 3D printing powder materials, especially titanium alloy, aluminum alloy, cobalt-chromium alloy and other powder materials rely on imports, and the price is high. However, the devel...

AI Technical Summary

Problems solved by technology

Compared with when the gas is just ejected from the nozzle, the energy of the gas acting on the metal droplet after a flight distance is weakened, and the gas velocity is reduced, thus reducing the gas-liquid velocity ratio and gas-liquid mass ratio between the inert gas and the metal droplet , which is not conducive to the breaking of metal droplets, and the formed metal powder is relatively coarse;

[0005] 2. After the smelting and atomization of a bar is completed, the next bar is added to the feeding bin, and then vacuuming and inert gas replacement operations are required, which takes a long time, low production efficiency, and high production costs. And after the smelting and atomization, the remaining scraps of the pre-alloyed rods need to be taken out through the feeding bin. At this time, the scraps are still in a high temperature state, and oxidation and nitriding are very easy to occur after passing through the air. Recycling increases the difficulty;

[0006] 3. In the prior art, filter dust removal devices mostly use bag dust removal and vertical filter dust removal devices. Both have obvious defects that they cannot collect the metal powder obtained by atomization, and the vertical filter dust removal device is filtered during the dust removal process. Metal powder is easy to block the filter element of the first stage, which needs to be manually cleaned regularly, and even reduces the service life of the filter element

Images