Results 1 to 10 of about 31,073 (195)
Study on Novel Powder Metallurgy Al-Si Brazing Filler Metal with Flux [PDF]
Crystals, 2022 Green brazing is one of the key basic technologies in the manufacturing industry, and the wide application of composite brazing filler metals is a significant method for realizing green and automatic brazing.
Wenpan Fei +7 more
doaj +5 more sources
Metallurgy and Mechanism of Underwater Wet Cutting Using Oxidizing and Exothermic Flux-Cored Wires [PDF]
Materials, 2021 This paper considers the metallurgical processes of dissociation, ionization, oxidation, deoxidation, and dissolution of oxides during underwater wet cutting. A multiphase mechanism of underwater wet cutting consisting of working and idle cycles of the electrical process in a pulsating vapor gas bubble is proposed. A model of arc penetration into metal
Sergey G Parshin
exaly +5 more sources
Solar EnergyCurrent ironmaking process leads to large CO 2 emissions due to the use of fossil fuels as both heating agent and reducer. An alternative ironmaking process based on the reduction of iron ore by hydrogen under a concentrated light flux, simulating a direct solar heating reactor, is studied here.
Julian Carrey
exaly +6 more sources
Towards solar metallurgy: Iron ore reduction by ammonia under concentrated light flux
Solar EnergyIron and steel making are responsible for around 7% of global CO2 emissions. The use of fossil fuels to provide both the heat needed to reduce iron ore into iron and the reducing agent is the principal cause of these emissions. Here, we focus on an alternative pathway for direct iron ore reduction using concentrated light power as the heat source and ...
Luu, Marion +3 more
exaly +3 more sources
Research Progress in Relation to Composite Brazing Materials with Flux
Crystals, 2021 Brazing was one of the earliest material-joining methods to be invented and widely used by humans. In the past 30 years, the technology and materials employed for brazing have developed rapidly and continuously.
Bo Wang +6 more
doaj +3 more sources
Metalurgija, 2013 In the steel industry, a number of fluxing agents based on Al2O3 is commonly used. They are produced in different forms. This paper deals with plant results and experiences with the usage of briquetted and sintered fluxing agents for slags based on Al2O3.
Socha, Ladislav +5 more
openaire +5 more sources
Currently, approximately 250 kg of steel per person are produced each year worldwide, and the steel industry contributes to approximately 7% of global carbon dioxide emissions. This impact is mainly due to the use of fossil fuels, which are used to reduce iron oxides to iron and also to provide the heat necessary for the reaction.
Marion Luu
openaire +3 more sources
Indonesian Journal of Applied Physics, 2023 In this research, the manufacture of barium hexaferrite (BaFe12O19) magnetic ceramics and the addition of titanium dioxide (TiO2) additives with variations of 0%: 0.3%: 0.6% and 0.9% used the powder metallurgical method. The characterization used in this
Ramlan Ramlan, Endah Puspita
doaj +1 more source
Characteristics of a calcite "limestone"-marble from Macedonia, used as flux material [PDF]
Journal of Mining and Metallurgy. Section B: Metallurgy, 2003 The phase characteristics of calcite "limestone"-marble from Banjany area village (near Skopje, Macedonia) were examined by means of XRD, SEM microscope in polarizing and reflected lights, chemical, DT/TG-analyses. It was concluded as follows: - calcite (
Hristova E., Jancev S.
doaj +1 more source