Results 41 to 50 of about 49,004 (210)

Safety of Sodium‐Ion Batteries: Evaluation and Perspective from Component Materials to Cells, Modules, and Packs

open access: yesAdvanced Energy Materials, EarlyView.
This review provides a bottom‐up evaluation of sodium‐ion battery safety, linking material degradation mechanisms, cell engineering parameters, and module/pack assembly. It emphasizes that understanding intrinsic material stability and establishing coordinated engineering control across hierarchical levels are vital for preventing degradation coupling ...
Won‐Gwang Lim   +5 more
wiley   +1 more source

Self-clamping arc light reflector for welding torch [PDF]

open access: yes, 1987
This invention is directed to a coaxial extending metal mirror reflector attached to the electrode housing or gas cup on a welding torch. An electric welding torch with an internal viewing system for robotic welding is provded with an annular arc light ...
Gordon, Stephen S.
core   +1 more source

Sustainable technologies for thick metal plate welding [PDF]

open access: yes, 2017
Welding is the most important joining technology. In the steel construction industry, e.g. production of windmill sections, welding accounts for a main part of the manufacturing costs and resource consumption.
Chang, Ya-Ju   +4 more
core   +1 more source

Perchloric Acid, an Effective Catalyst for Thermosetting Self‐Crosslinking Hydroxy Acrylic Resins

open access: yesJournal of Applied Polymer Science, EarlyView.
Perchloric acid is an effective catalyst for the crosslinking of hydroxy acrylate resins. Its action is based on the intermediate formation of alkyl perchloric esters. Transesterification gives volatile alkyl perchlorates that evaporate to give a catalyst‐free resin.
Patrick Wienefeld, Gerrit A. Luinstra
wiley   +1 more source

Effect of GTAW on the Tensile Strength and Hardness of Mild Steel

open access: yesAnnals of "Dunarea de Jos" University of Galati, Fascicle XII, Welding Equipment and Technology, 2022
Gas tungsten metal arc welding (GTAW) is used to study the effect of the base metal thickness, welding current and welding speed on the tensile strength and hardness of mild steel welding.
S. Elfallah
doaj   +1 more source

Internal wire guide for GTAW welding [PDF]

open access: yes, 1989
A welding torch for gas tungsten arc welding apparatus has a filler metal wire guide positioned within the torch, and within the shielding gas nozzle. The wire guide is adjacent to the tungsten electrode and has a ceramic liner through which the wire is ...
Dyer, Gerald E., Morgan, Gene E.
core   +1 more source

Process Control of 3D Welding as a Droplet-Based Rapid Prototyping Technique [PDF]

open access: yes, 1998
Three-dimensional welding is investigated as a rapid prototyping technique for the production of real Inetallic parts using gas metal arc welding principles.
Beardsley, H., Kovacevic, R.
core   +1 more source

Review of Flash Joule Heating for the Synthesis of Graphene and Other Functional Carbon Materials

open access: yesCarbon Energy, EarlyView.
ABSTRACT Flash Joule heating (FJH), as a high‐efficiency and low‐energy consumption technology for advanced materials synthesis, has shown significant potential in the synthesis of graphene and other functional carbon materials. Based on the Joule effect, the solid carbon sources can be rapidly heated to ultra‐high temperatures (> 3000 K) through ...
Zhiwu Tan   +10 more
wiley   +1 more source

Thermal and structural modelling of arc welding processes: A literature review

open access: yesMeasurement + Control, 2019
This paper presents a state-of-the-art critical review of the thermal and structural modelling of the arc welding process. During the welding process, high temperature in the welding zone leads to generation of unwanted residual stresses and results in ...
Hitesh Arora   +2 more
doaj   +1 more source

Welding of Large Thickness Super Duplex Stainless Steel: Microstructure and Properties

open access: yesMetals, 2021
In this study, Submerged Arc Welding (SAW) and Gas Metal Arc Welding (GMAW) processes were used in multi-pass welding of 33 mm thickness super duplex stainless steel plates.
Maria Asuncion Valiente Bermejo   +3 more
doaj   +1 more source

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