AVIC will introduce new ultra-high-purity spherical titanium alloy
powders to users around the world
Metal powder is a basic and key material for metal 3D printing process. AVIC Maite has been committed to the research and development of high-quality 3D printing alloy powder materials. It is reported that AVIC Matt is developing a new generation of plasma atomization (PA) milling technology and will introduce a new ultra-high purity spherical titanium alloy powder product AMC-Ti6Al4V to users around the world.
PA technology is one of the hottest topics in the world for 3D printing titanium powder technology. Its high thermal energy input and steady flow atomization characteristics based on plasma jets can effectively control the powder's hollow powder rate. The powder has a high degree of sphericity and exhibits "like water. The fluidity is particularly adapted to metal 3D printing processes.
Plasma atomization (PA) - "all excellent students" in the field of spherical metal powder preparation technology
The PA technology uses titanium wire as a raw material, uses a plasma jet to melt the wire, and then it is impacted and atomized into ultrafine droplets. It is deposited in an atomization tower and exchanges heat with cooling argon gas that is introduced into the atomization tower. It is then cooled and solidified into an ultrafine powder as shown in the figure.
Compared with the plasma rotating electrode technology (PREP), the titanium powder produced by the PA technology guarantees a high sphericity while the powder is finer and the fine powder yield is excellent; compared with the gas atomization methods such as VIGA and EIGA, PA While ensuring the fine powder yield, the sphericity of the powder is higher, and there is almost no hollow powder in the fine powder; compared with the plasma spheronization method, the PA process has higher production efficiency. The PA technology combines many advantages, and it can be said that it is a "all-round eugenics" in the field of spherical metal powder preparation technology.
"Three high" performance worth the wait
The titanium wire used in the PA process does not come into contact with ceramics and other reactor walls during the melting process, reducing the risk of inclusions. At the same time, the prepared powder has almost no hollow powder, thus ensuring the powder's “high purity and low hollow rate”.
PA uses hot atomizing gas instead of cold atomizing gas to prevent rapid cooling of the particles and agglomerate into irregular shapes. The powder produced has the characteristic of “high sphericity”.
The PA process produces very few powder satellites and has a high sphericity. The AMC-Ti6Al4V titanium alloy powder has "high flowability" characteristics. The Hall flow rate is 30.8s/50g, and it truly realizes "water-like" flow.
Only focusing on professional skills, from EIGA technology to PA technology, from breakthrough in imitation to technology leadership, from solving "absence" problems to mass standardization preparation, China Aviation Matt will look for the breakthrough of "3D printed spherical powder" and continue to launch assault. , Challenge new heights, only to produce the world's best quality 3D printing powder products, make 3D printing design choices more freely, print performance is more stable, printing costs have more advantages, and create more value for users worldwide!
It is reported that AVIC's research team has military research materials and strong technical strength. It has successfully developed nearly 20 kinds of standard powder materials such as titanium alloys, nickel-base alloys, cobalt-chromium alloys, stainless steels, die steels, and aluminum alloys. Including titanium-aluminum intermetallic compounds, nickel-titanium shape memory alloys, high-strength aluminum alloys, high-entropy alloys, amorphous alloys and a large number of new international cutting-edge 3D printing materials, prepared more than 20 kinds of corporate standards for laser melting metal powder materials, participate in Prepare audits for a number of additive manufacturing aviation industry standards and national standards.