Results 81 to 90 of about 1,610 (249)

FATIGUE LIFE ANALYSIS OF FILLET WELDS OF TRANSFORMER OIL TANK WITH WELDING DEFECTS (MT)

open access: yesJixie qiangdu, 2023
The tank body of the transformer is filled with welds. Under vibration conditions, the fatigue damage of the tank often occurs at the internal defect position of the fillet weld.
CHEN Ben   +3 more
doaj  

Material Selection of Tanks for Storage and Transport of Liquid Organic Hydrogen Carriers: A Lightweight and Lifecycle Assessment Comparative Study of Metal, Polymer, and Composite Alternatives

open access: yesEnergy Technology, Volume 13, Issue 1, January 2025.
Material selection of tanks for storage and transport of a liquid organic hydrogen carrier is investigated. Three materials are compared: metals (steel), polymers (thermoplastic), and composites (glass fiber‐reinforced plastic). Criteria for selection relies on compliance to existing design standards, lightweight, and CO2 emissions.
Vinicius Carrillo Beber   +2 more
wiley   +1 more source

Effect of ludwigite (B2O3) on high Al2O3 slag and its mechanism used as a new blast furnace welding flux

open access: yesMetalurgija, 2020
Based on the measurement of viscosities and critical temperatures of CaO-MgO-SiO2- Al2O3-B2O3 slag system with various B2O3 contents, the slag with higher than 15 mas.
B. Dai, H. Long, Y. Wen, Y. Ji
doaj  

Metal magnetic memory quantitative inversion of defects based onoptimized support vector machine regression

open access: yes工程科学学报, 2018
During welding processes, initial defects such as incomplete penetration and slag are easily generated. To ensure the safe operation of welding components, welded joints must be tested rigorously.
LI Si-qi   +4 more
doaj   +1 more source

A Markov's theorem for extended welded braids and links [PDF]

open access: yesarXiv, 2017
Extended welded links are a generalization of Fenn, Rim\'{a}nyi, and Rourke's welded links. Their braided counterpart are extended welded braids, which are closely related to ribbon braids and loop braids. In this paper we prove versions of Alexander and Markov's theorems for extended welded braids and links, following Kamada's approach to the case of ...
arxiv  

Development of method to remove weld scallop and ceramic backing material of wedge type and its application

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2015
The weld scallop has been used for joining T-bars. There are a lot of weld scallops in shipbuilding. It is difficult to perform scallop welding due to the inconvenient welding position. This results in many problems such as porosity, slag inclusion, etc.
Sung-Koo Kang   +2 more
doaj   +1 more source

Historical overview on Vacuum suitable Welding and fatigue resistance in Research Devices [PDF]

open access: yesarXiv, 2014
New inventions change the approach of vacuum suitable welding for research purpose. With orbital welding, laser welding and robot welding the possibilities increase to fabricate larger vessels more accurately. Despite this development there is still no perfect understanding on how to avoid virtual leaks and how to make such joints suitable for dynamic ...
arxiv  

Study of metal refining during electric arc welding

open access: yesЛитьë и металлургия
The article presents sources of sulfur and phosphorus entering the weld pool, their influence on the quality of weld metal during electric arc welding and methods of their removal.
A. S. Saidakhmatov   +5 more
doaj   +1 more source

STUDIES OF ACOUSTIC EMISSION SIGNATURES FOR QUALITY ASSURANCE OF SS 316L WELDED SAMPLES UNDER DYNAMIC LOAD CONDITIONS [PDF]

open access: yesJournal of Engineering Science and Technology, 2016
Acoustic Emission (AE) signatures of various weld defects of stainless steel 316L nuclear grade weld material are investigated. The samples are fabricated by Tungsten Inert Gas (TIG) Welding Method have final dimension of 140 mm x 15 mm x 10 mm.
S. V. RANGANAYAKULU   +3 more
doaj  

Investigation on Mechanical Properties of Agro and Industrial Waste Reinforcement in Aluminium 7075 Composite with Liquid Metal Stir Casting Route [PDF]

open access: yesArchives of Metallurgy and Materials
Day-to-day life advanced composite materials usage is increasing continuously and replacing the existing monolithic materials. These composite materials are designed and fabricated for human needs with specific applications and also meet the standard ...
M. Kolli, S. Naresh Dasari, S. Kosaraju
doaj   +1 more source

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