Results 11 to 20 of about 42,711 (257)

Research on plasma arc flame length detection technology based on region of interest. [PDF]

PLoS ONE
With the rapid advancement of metal 3D printing technology, there is a growing demand for spherical metal powder as a primary material for 3D printing. The process technology that ensures the production of high-quality spherical metal powder has become a
Jie Li, Wei Jiang, Jian Lei, Xiaoxiao Xing   +3 more
doaj   +2 more sources

Effect of hydrogen peroxide concentration on plasma arc-activated tooth bleaching: An in vitro study [PDF]

Journal of Dental Sciences
Background/purpose: Tooth bleaching was a conservative treatment compared with veneer and crown restorations that causes damage of teeth structure. This study evaluated the effectiveness of different concentrations of hydrogen peroxide combined with ...
Pei-Ling Lai, Ping-Hui Liao, Po-Sung Fu, Chih-Te Liu, Wen-Cheng Chen, Chun-Cheng Hung   +5 more
doaj   +2 more sources

A Magnetron Plasma Arc Fusion Identification Study Based on GPCC-CNN-SVM Multi-Source Signal Fusion [PDF]

Sensors
Plasma arc welding (PAW) is commonly employed for welding medium and thick plates due to its capability of single-side welding and double-side forming. Ensuring welding quality necessitates real-time precise identification of the melting state.
Yeming Zou, Dongqian Wang, Yuanyuan Qu, Hao Liu, Aiting Jia, Bo Hong   +5 more
doaj   +2 more sources

Analysis of Electrical Characteristics of Inter-wire Arc in Cross-Coupling Arc

Chinese Journal of Mechanical Engineering, 2019
As a new composite welding heat source introduced in recent years, the cross-coupling arc uses a non-consumable electrode arc (plasma arc) and a consumable electrode arc (inter-wire arc) in cross-coupling, in which the plasma arc is the main arc and the ...
Zhenyang Lu, Shanwen Dong, Fan Jiang, Cheng Li   +3 more
doaj   +1 more source

Thermodynamic of Liquid Iron Ore Reduction by Hydrogen Thermal Plasma

Metals, 2018
The production of iron using hydrogen as a reducing agent is an alternative to conventional iron- and steel-making processes, with an associated decrease in CO2 emissions.
Masab Naseri Seftejani, Johannes Schenk
doaj   +1 more source

Ti–6Al–4V alloy deposition characteristics at electrode-negative polarity in the cold metal transfer–gas metal arc process

Journal of Materials Research and Technology, 2022
Although wire arc additive manufacturing (WAAM) of Ti alloys using gas metal arc yields a high deposition rate, cathode spots exhibit unstable behavior.
Tae Hyun Lee, Dong Hyuck Kam, Je Hoon Oh, Cheolhee Kim   +3 more
doaj   +1 more source

Steam Plasma Flows Generated in Gerdien Arc: Environment for Energy Gas Production from Organics and for Surface Coatings

Journal of Fluid Science and Technology, 2011
Electric arc stabilized by a vortex of water (Gerdien arc) is used in a special type of plasma torch for generation of thermal plasma jet with extreme plasma parameters.
Milan HRABOVSKY
doaj   +1 more source

The influence of ethanol addition on the spatial emission distribution of traces in a vertical argon stabilized DC arc plasma [PDF]

Journal of the Serbian Chemical Society, 2004
The plasma of a vertical argon stabilized DC arc at atmospheric pressure is applied as a spectrochemical source. The lateral distributions of relative spectral line intensities of some trace elements (Zn, Pt, Cd, Mg, Ca and Al) introduced into the plasma
MARIJA TODOROVIC, SLAVICA RAZIC, IVANKA HOLCLAJTNER-ANTUNOVIC   +2 more
doaj   +3 more sources

Numerical simulations of arc plasma under external magnetic field-assisted gas metal arc welding

AIP Advances, 2020
The arc plasma behavior for gas metal arc welding (GMAW) with an external compound magnetic field was numerically investigated. A three-dimensional finite element model for the external magnetic field (EMF) and a three-dimensional finite volume model for
Lin Wang, Ji Chen, ChunLi Jiang, ChuanSong Wu   +3 more
doaj   +1 more source

On the Plasma Arc Melting

DENKI-SEIKO[ELECTRIC FURNACE STEEL], 1970
The purpose of this study is to develop a new melting and rifining method of ferrous, non-ferrous metals and their alloys in utilizing super high temperature of plasma arc, inert gas atmosphere, powerful stirring and so on. Furthermore, this study aims at the development of economical plasma arc furnace.After examination of test results of a 80kg ...
Noda, Hiroshi, Asada, Chiaki, Eguchi, Isamu, Adachi, Toshio, Hayashi, Kiyohide   +4 more
openaire   +2 more sources