ZhuZhou Hanhe Unveils Advanced Combined Water-Gas Atomization Technology
News related to:ZHUZHOU HANHE INDUSTRIAL EQUIPMENT CO., LTD · 2 min read
ZHUZHOU HANHE INDUSTRIAL EQUIPMENT CO., LTD., a leading manufacturer of high-end metal processing solutions, has unveiled a comprehensive engineering guide to its advanced combined water-gas atomization technology. Founded in 2014, the company has established itself as a trusted global supplier, supported by a team of senior engineers with over a decade of specialized industry experience.
The combined water-gas atomization technology addresses key technical bottlenecks in traditional powder-making processes, such as poor sphericity from pure-water atomization, high operating costs of full gas atomization, and inconsistent quality between batches. By employing a two-stage process, the system first uses high-pressure inert gas to fragment molten metal streams, followed by high-pressure water jets for secondary crushing. This dual-medium approach ensures high fine-powder yield and better sphericity compared to conventional methods.
The entire manufacturing workflow is divided into five distinct operational phases. The first phase involves raw material preparation and melt-stream calibration, where ingots of carbon steel, alloy steel, or stainless steel undergo strict metallurgical composition inspection and impurity verification. Under an inert shielding atmosphere, the induction melting furnace precisely adjusts the molten-metal temperature and pouring speed. Melt-stream calibration guarantees a stable laminar liquid flow toward the atomizing nozzle block.
In the second phase, the proprietary combined atomization nozzle surrounds the steady molten-metal stream. High-pressure inert gas conducts primary fragmentation, while synchronized high-speed water jets complete secondary ultra-fine crushing. Real-time monitoring of gas-water parameters ensures balanced powder fineness and sphericity, suppressing excessive oxidation. Fragmented metal droplets then fly downward inside the sealed atomization tower, solidifying under regulated cooling rates. The inert gas atmosphere restrains oxygen pick-up, allowing droplets sufficient time for surface-tension-driven spheroidization before full solidification.
The fourth phase focuses on powder collection, dehydration, and dimensional stabilization. Solidified metal powder slurry is collected via the enclosed receiving system, followed by subsequent processes including dehydration, vacuum drying, screening, and air-classification. Particle-size distribution, apparent density, and tap density are stabilized to meet technical indexes required for downstream powder metallurgy production.
The final phase involves process logging and quality verification. Each atomization batch generates automatic digital logs recording melting temperature, gas-water pressure curves, pouring flow rate, and chamber atmosphere parameters. These datasets achieve end-to-end traceability and satisfy stringent documentation requirements from aerospace, thermal power, oil-gas, and other high-end industries.
The combined water-gas atomization production system supports the processing of carbon steel, stainless steel, and multiple high-alloy materials, producing powder with a typical D50 ranging from 5 μm to 75 μm. Benefiting from its patented dual-medium coupled nozzle design, the equipment delivers better sphericity than pure-water atomization and higher fine-powder yield with lower operating costs compared to full gas atomization. Built-in continuous process data logging, full-closed inert-gas protection, and multi-parameter synchronous control guarantee stable batch quality for critical industrial feedstock.
Behind this sophisticated powder-manufacturing solution lies the company's solid engineering capability, rooted in Zhuzhou, a core advanced-manufacturing hub of China. ZHUZHOU HANHE INDUSTRIAL EQUIPMENT CO., LTD. holds over 20 independent patents and strictly complies with ISO9001 quality-management standards. Its product portfolio includes automatic pipe-forming machines, induction heating systems, vacuum metallurgy equipment, and complete powder metallurgy production lines. As a flagship product, the combined water-gas atomization production system demonstrates outstanding technical competence, supporting the processing of various high-alloy materials and producing powder with typical D50 ranging from 5 μm to 75 μm.