Results 1 to 10 of about 525 (99)

Effect of Electrode Induction Melting Gas Atomization Process on Fine Powder Yields: Continuous Metal Melt Flow [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
Electrode induction melting gas atomization (EIGA) is a newly developed method for preparing ultra-clean metal powders, and is a completely crucible-free melting and atomization process.
Jialun Wu   +3 more
doaj   +1 more source

Nozzle Clogging in Vacuum Induction Melting Gas Atomization: Influence of the Delivery-Tube and Nozzle Coupling [PDF]

open access: yesArchives of Metallurgy and Materials, 2022
Nozzle clogging seriously affects the continuity of spraying powder in vacuum induction melting gas atomization (VIGA) process and increases the consumption of gas and raw materials. However, there are few systematic studies on nozzle clogging.
Junfeng Wang   +3 more
doaj   +1 more source

Preparation of new high hardness martensitic iron-based alloy powders by electrode induction gas atomization

open access: yesFenmo yejin jishu, 2021
The effects of the electrode induction gas atomization parameters (atomization pressure, gas temperature, and melting power) on the particle size distribution, powder fluidity, and yield of the new high hardness martensitic iron-based alloy powders were ...
LIU Yan   +4 more
doaj   +1 more source

Investigation on close-coupled gas atomization for Fe-based amorphous powder production via simulation and industrial trials: Part I. Melt breakup behaviors during primary atomization

open access: yesJournal of Materials Research and Technology, 2023
The primary atomization process is simulated by Volume of Fluid (VOF) model and dynamic adaptive mesh method. The influence of melt mass flow rate and atomization pressure on the breakup process is investigated, and the effect of hot gas atomization is ...
Jiaqi Liu   +5 more
doaj   +1 more source

Potential of nitrogen atomized alloy 625 in the powder bed fusion laser beam process

open access: yesMaterials & Design, 2022
Powder based metal additive manufacturing processes like Powder Bed Fusion – Laser Beam utilize gas atomized metal powders as feedstock material. Typically, for nickel-based alloys such as Alloy 625, argon gas is used during the atomization process ...
C.J. Hassila   +3 more
doaj   +1 more source

Breakup process modeling and production of FeSiAl magnetic powders by close-coupled gas atomization

open access: yesJournal of Materials Research and Technology, 2023
Close-coupled gas atomization is extensively used in the industrial production of alloy powders due to the advantages of high efficiency, low cost and excellent powder properties.
Pu Wang   +5 more
doaj   +1 more source

Atomic gas in debris discs [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2016
We have conducted a search for optical circumstellar absorption lines in the spectra of 16 debris disc host stars. None of the stars in our sample showed signs of emission line activity in either H$_ $, Ca II or Na I, confirming their more evolved nature. Four stars were found to exhibit narrow absorption features near the cores of the photospheric Ca
Hales, Antonio S.   +3 more
openaire   +4 more sources

Satellite-particle control technique based on gas-flow-regulation during gas atomization process

open access: yesFenmo yejin jishu, 2022
Gas atomization (GA) is an essential method for the preparation of metal powders specifically used in the additive manufacturing. However, there are plenty of “satellites” among the metal powders prepared by GA. The existence of these satellite particles
HE Xin-yu   +3 more
doaj   +1 more source

Atomization Characteristics of Special-Design Pneumatic Two-Fluid Nozzles for Helicopter Main Reducers: A Numerical and Experimental Investigation

open access: yesAerospace, 2022
Oil mist lubrication can be utilized as an emergency lubrication system in the main reducer of a helicopter. A special-design pneumatic two-fluid nozzle is the crucial system component for atomizing lubricant oil, so exploring the atomization ...
He Liu, Huiyun Cheng, Yu Dai, Xiang Zhu
doaj   +1 more source

Atomized droplet size prediction for supersonic atomized water drainage and natural gas extraction

open access: yesScientific Reports, 2022
In the later stage of natural gas reservoir exploration, the wellbore pressure is reduced and the liquid accumulation is serious, in order to solve the problem of liquid accumulation and low production in low-pressure and low-yield gas wells, the ...
Chengting Liu, Liang He
doaj   +1 more source

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