Shipment Notice｜A "high-temperature pyrolysis" method of plasma atomization powder manufacturing pro

　　Today, Hunan Skyline Smart Material&Technology Co, Ltd. has launched a plasma atomization powder manufacturing production line.
　　Plasma as an extreme process technology, its application in the processing and synthesis of powder materials is a high-tech in the industry, and has become a research hotspot in many countries.

　　This equipment series injects solid particles or filaments into an inert gas plasma, which completely evaporates under the high temperature of the plasma, and exists in the form of steam, and then uses the gas quenching cooling technology to perform rapid cooling, so that the saturated steam is rapidly condensed and formed. The core grows to form an superfine powder.
　　Equipment advantages and features

　　The first domestic full range of advanced ultrafine / nano powder material technology solutions, independently developed and sold, has a broad application market in the fields of titanium, titanium alloys and refractory metals, 3D printing powder preparation, and military aerospace-grade single crystal basic raw material preparation. Such as:

　　1. Metals: Cu, Fe, Al, Mo, W, Ni, Re, Ta, Ti, etc. and its alloys;

　　2. oxides: Al2O3, MgO, TiO2, ZrO2, SiO2, etc .;

　　3. Carbides: WC, TiC, B4C, SiC, etc .;

　　4. Nitrides: AiN, TiN, BN, Si3N4, etc.

　　Innovation of equipment

　　1. Combined modular multifunctional raw material conveying device, including: liquid, gaseous, powdery raw material uniform and precise feeding device, filamentous raw material uniform and precise feeding device, block vacuum melting precision current-limiting diversion pouring device; can meet the production of raw materials in different states;

　　2. Plasma power and plasma generator are also the key technological innovations of this project. In order to improve the atomization efficiency and the stability of the atomization process, the project proposes for the first time that the ultra-high temperature plasma generator, the choice of plasma gas types, and the gas flow and metal flow rate are reasonably matched, which can produce a full range of high-performance single metal and metal alloy superfine / nano powder, including chemically active metals Mg / Al / Ti / Zr and alloys; high temperature metals W / Mo / Ni / Ta and alloys;

　　3. Its professionally designed chemical reaction chamber can react to generate a variety of high-purity ultra-purity multi-element composite materials;

　　4. The key technical points of precise and intelligent control of powder particle size, oxygen content and fluidity are proposed;

　　5. Use original quenching technology to prepare nanometer powder materials.

　　Advanced equipment technology

　　1. This equipment is equipped with patented technology (patent number: 201620234962.8 / a device for preparing high-performance powder of additive manufacturing by plasma atomization) with high quality-efficiency ratio and high integration of intelligent control;

　　2. The first on-line measurement of powder particle size and feedback precision control technology, so that the industry technology has moved away from the dependency stage of personal experience and entered the era of intelligent manufacturing; (optional)

　　3. Comprehensive control technology of powder oxygen content process;

　　4. Key control technology of powder flowability index;

　　This project adopts a combined modular uniform and precise raw material feeding device, a dedicated atomizing tower design technology, and atomizing gas recirculation, and uses multi-directional cooling powder technology to accelerate the cooling speed of atomized powder and reduce the unit volume of powder particles in the atomizing tower, decreasing the probability of powder collision, greatly reducing the adhesion between powders.

　　5. Key control technologies to improve the yield of powder in the -45 + 15μm range (applied to mainstream technology paths such as additive molding SLM);

　　The project uses plasma gas atomization technology and suitable atomization process (mainly atomization temperature and pressure) to prepare powder to improve the yield and sphericity of -45 + 15μm powder to xensure good powder flowability. The research of this project shows that the yield of -45μm powder in the preparation of nickel-based and stainless steel powder is greater than 70%, and the content of -15μm powder can be reduced through the optimization of the structure of the plasma and the combination of the atomization process, thereby effectively increasing the -45 + 15μm powder yield;

　　6. Chemically active material surface passivation technology to ensure the safety of the product in use;

　　7. Equipment anti-static design technology.

　　Technical Parameters

　　1.Technical parameters

　　2. Production capacity: 30 ~ 60KG / hour ( According to different material density)

　　3. Power: 230KW

　　4. Power supply voltage: 380V, 50Hz

　　5. Ultimate vacuum degree: 10Pa

　　6. Protective atmosphere: N2, Ar

　　7. Cooling water rated pressure: 0.3MPa

　　8. Rated pressure of air source: 0.6MPa

　　9. Atomization pressure: ≤0.5MPa

　　Technical indicators

　　1. Distribution of powder yield: D70 = 15-45μm (Titanium and titanium alloy powder as examples)

　　2. Powder oxygen increment: ≤100ppm (Take pure titanium as an example. In order to be safe for application in the actual production process, such chemically active powder materials must be surface passivated and the oxygen content should be up to 800 ~ 1500ppm;

　　3. Powder flowability: ≤25s / 50g