Results 1 to 10 of about 19,542 (118)

Injection of Viscous Micro-Droplet via Nozzle-Driven Piezoelectric Micro-Jet and Its Performance Control Method [PDF]

open access: yesMicromachines, 2023
The inkjet printing technology based on piezoelectric micro-jets can effectively realize the efficient and high-precision processing of special-shaped structures. In this work, a nozzle-driven piezoelectric micro-jet device is proposed, and its structure
Ti-Yuan Shan   +4 more
doaj   +2 more sources

Comparative Influences of Fluid and Shell on Modeled Ejection Performance of a Piezoelectric Micro-Jet [PDF]

open access: yesMicromachines, 2017
The piezoelectric micro-jet, which can achieve the drop-on-demand requirement, is based on ink-jet technology and small droplets can be ejected out by precise control.
Kai Li   +3 more
doaj   +2 more sources

Numerical study on the desorption processes of oil droplets inside oil-contaminated sand under cavitation micro-jets

open access: yesUltrasonics Sonochemistry, 2021
The removal of the adsorbed oil droplet is critical to deoiling treatment of oil-bearing solid waste. Ultrasonic cavitation is regarded as an extremely useful method to assist the oil droplets desorption in the deoiling treatment.
Fang Zhao, Qianqian Yan, Daolai Cheng
doaj   +1 more source

Development and Application of Constant Flow Generating Injector with Pulse Energy Source as Driving Force [PDF]

open access: yes한국정밀공학회지, 2019
A pulsed-power source has the advantage of releasing a peak power over a short time interval. In this study, we implemented two types of such energy source, namely laser and dielectric break down power sources.
Hwi Chan Ham   +3 more
doaj   +1 more source

MAG Welding Process with Micro-Jet Cooling as the Effective Method for Manufacturing Joints for S700MC Steel

open access: yesMetals, 2021
Advanced high-strength steel (AHSS) steels are relatively not very well weldable because of the dominant martensitic structure with coarse ferrite and bainite.
Tomasz Węgrzyn   +3 more
doaj   +1 more source

Gas Mixtures for Welding with Micro-Jet Cooling

open access: yesArchives of Metallurgy and Materials, 2015
Welding with micro-jet cooling after was tested only for MIG and MAG processes. For micro-jet gases was tested only argon, helium and nitrogen. A paper presents a piece of information about gas mixtures for micro-jet cooling after in welding.
Węgrzyn T.
doaj   +1 more source

The Effect Of Different Micro-Jet Streams Number On Plastic Properties Of Welds

open access: yesArchives of Metallurgy and Materials, 2015
The main goal of that paper was analysing of plastic properties of welds made with micro-jet cooling. New technology of micro-jet welding could be regarded as a new way to improve plastic properties of welds.
Hadryś D., Węgrzyn T., Piwnik J.
doaj   +1 more source

Micro-jet Cooling by Compressed Air after MAG Welding

open access: yesArchives of Foundry Engineering, 2016
The material selected for this investigation was low alloy steel weld metal deposit (WMD) after MAG welding with micro-jet cooling. The present investigation was aimed as the following tasks: analyze impact toughness of WMD in terms of micro-jet cooling ...
Węgrzyn T.   +4 more
doaj   +1 more source

Fabrication and characterization of mussel-inspired layer-by-layer assembled CL-20-based energetic films via micro-jet printing

open access: yesDefence Technology, 2022
Three-dimensional (3D) micro-jet printing is a droplet deposition technique based on liquid-phase materials. To improve the deposition density and performance of energetic films with micro/nanoscale on an energetic chip, polydopamine (PDA) was utilized ...
Chun-yan Li   +5 more
doaj   +1 more source

Nitrogen And Oxygen Amount In Weld After Welding With Micro-Jet Cooling

open access: yesArchives of Metallurgy and Materials, 2015
Micro-jet cooling after welding was tested only for MIG welding process with argon, helium and nitrogen as a shielded gases. A paper presents a piece of information about nitrogen and oxygen in weld after micro-jet cooling. There are put down information
Węgrzyn T., Piwnik J.
doaj   +1 more source

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