Yunlu Co., Ltd. Receives Utility Model Patent for 'Continuous Casting Gas Atomization Powder Production Equipment'
Yunlu Co., Ltd. (688190) was granted a utility model patent on July 24, 2026, for equipment titled 'A Continuous Casting Gas Atomization Powder Production Device,' with patent application number CN202521701726.8. The device comprises core components such as an atomization tower, first and second medium-frequency furnaces, a tundish, powder delivery piping, a cyclone separator, a small material tank, a cooling unit, a mobile material tank, a dust collector, and a fan. Its core technical principle is that while the first medium-frequency furnace is casting, the second furnace concurrently charges and melts steel; once the first furnace completes casting, the second is ready to pour, enabling a cyclic multi-furnace continuous casting process. This patent addresses the technical challenge of continuous casting in conventional gas atomization powder production equipment, ensuring production efficiency. Yunlu Co., Ltd., a national-level specialized and new 'Little Giant' enterprise under AECC, primarily produces advanced magnetic metal materials such as amorphous alloy ribbons, nanocrystalline alloys, and atomized powders. This year, the company has received 15 new patent grants, a 275% increase year-over-year, with R&D investment of 119 million RMB in 2025. This patent represents a core technological breakthrough in gas atomization powder production equipment, further enhancing the efficiency and continuity of powder production.
2026-07-23
City University of Hong Kong Unlocks Strength-Ductility Bottleneck in BCC High-Entropy Alloys Using LPBF to Stabilize CMRO Structures
A research team led by Professor Jian Lu of City University of Hong Kong, in collaboration with the China Academy of Engineering Physics and Dalian University of Technology, has used laser powder bed fusion (LPBF) additive manufacturing to in-situ construct chemical medium-range order (CMRO) structures in a BCC-structured multi-principal element alloy (Al₂Ti₇Zr₂Nb₅). The ultra-fast cooling rate of LPBF (10³–10⁸ K/s) “freezes” the high-temperature chemical fluctuation state, resulting in a uniform distribution of B2-type CMRO clusters with an average size of ~1.6 nm, a volume fraction of ~20%, and full coherency with the matrix. Compared to as-cast alloys without CMRO (elongation of only ~1%), the LPBF-processed alloy achieves an excellent synergy of yield strength 1023 MPa, uniform elongation ~20%, and total elongation ~32%. Even at 873 K, its yield strength remains as high as 700 MPa. The conditional fracture toughness (KJQ) reaches 158 MPa·m^1/2, far exceeding typical BCC refractory high-entropy alloys. This study is the first to systematically reveal that LPBF can “lock in” thermodynamically metastable CMRO structures via rapid cooling, providing a new pathway for achieving high strength and toughness in BCC alloys at room temperature.
2026-07-23
AFRL Study Validates PanX Metal Additive Simulation Software: Predicts Thermal History Across Full LPBF Build Space with 2–14% Error
A study supported by the U.S. Air Force Research Laboratory (AFRL) has validated the reliability of PanX software in calculating thermal history and residual stress for metal 3D printing. The research compared simulation and experimental measurement data for Ti-6Al-4V titanium alloy across a full LPBF build space with multiple parts printed simultaneously. PanX achieved interlayer temperature calculation deviations ranging from 2% to 14%, and employed a novel P-integral method to identify potential crack zones. The software is based on a multigrid approach that combines multiple transient solutions to balance accuracy and computational efficiency. As noted by the Chief Engineer at PanOptimization, additive manufacturing cannot reach full industrial maturity without reliable, physics-based models. The findings demonstrate that physics-based models can identify and mitigate risks such as part deformation and cracking before actual printing, which is critical for process qualification in aerospace and defense applications. PanX's simulation capabilities enable manufacturers to reduce material waste, accelerate product development cycles, and lower certification costs, marking a shift from trial-and-error methods to physics-based digital production.
2026-07-23