Results 21 to 30 of about 28,830 (206)

Nitrogen control of ultra-low-carbon Al-killed steel in a smelting process

工程科学学报, 2016
Based on the fact of high nitrogen pick-up, large nitrogen fluctuation and poor control in some steel works, the main aspects of nitrogen removal and nitrogen pick-up in an ultra-low-carbon Al-killed steel smelting process were summarized by analyzing ...
WANG Min, ZHANG Chao-jie, CAI Xiao-feng, ZHANG Si-yuan, GUO Zhao-qiao   +4 more
doaj   +1 more source

Flash Smelting Copper Concentrates Spectral Emission Measurements

Sensors, 2018
In this paper, we report on spectral features emitted by a reaction shaft occurring in flash smelting of copper concentrates containing sulfide copper minerals such as chalcopyrite (CuFeS2), bornite (Cu5FeS4) and pyrite (FeS2).
Luis Arias, Sergio Torres, Carlos Toro, Eduardo Balladares, Roberto Parra, Claudia Loeza, Camilo Villagrán, Pablo Coelho   +7 more
doaj   +1 more source

The Effect of a Knowledge-Based Intervention on the Use of Respirators in the Norwegian Smelter Industry

Frontiers in Psychology, 2020
IntroductionThe present study investigated the effect of interventions aiming to improve attitudes toward the use of respiratory protective equipment (RPE), knowledge of RPE and the use of RPE in the Norwegian smelter industry.MethodThe surveys received ...
Øystein Robertsen, Marit Nøst Hegseth, Solveig Føreland, Frank Siebler, Martin Eisemann, Hans Christian Bones Vangberg, Hans Christian Bones Vangberg   +6 more
doaj   +1 more source

Bullion production in imperial China and its significance for sulphide ore smelting world-wide [PDF]

, 2015
Gold and silver production was of major importance for almost all ancient societies but has been rarely studied archaeologically. Here we present a reconstruction of a previously undocumented technology used to recover gold, silver and lead at the site ...
Martinón-Torres, M, Venunan, P, Chen, J, Liu, S, Larreina-Garcia, D, Rehren, T, Xu, C   +6 more
core  

Corrosion mechanism of Al2O3–C stopper rod by calcium treated molten steel

Journal of Materials Research and Technology
The stopper rod plays a crucial role in continuous casting by controlling the flow of molten steel into the mold in the tundish, ensuring a stable molten steel level, and facilitating smooth operation.
Lidong Xing, Jingjing Liu, Yanping Bao, Min Wang   +3 more
doaj   +1 more source

Research on smelting ingredient diluting for refined copper strip by bacteria foraging optimization algorithm

, 2010
During the smelting process of refined copper strip production, to reduce varied losses caused by obvious superscales of some individual ingredients, the multi-charge diluting optimization method for smelting ingredients of refined copper strips is ...
Chang CG(常春光), Chang Chunguang, Zhu YL(朱云龙), Shen H(申海), Hu KY(胡琨元), Zhu Yunlong, Shen Hai, Hu Kunyuan   +7 more
core   +2 more sources

Recovery of Germanium from Zinc Smelting Leachate Using a Novel Hydroxamic Acid Extractant BGYW: Continuous Counter-Current Extraction and Process Optimization

Metals
Germanium is a critical rare-dispersed metal with irreplaceable applications in infrared optics, fiber-optic communications, and semiconductor industries, making its efficient recovery from secondary resources of great strategic importance.
Zong Guo, Zhenyu Wang, Zhixing Qin, Tao Li, Haibei Wang, Yunchuan Ma, Yun Li, Guang Fu, Hao Ma, Chaozhen Zheng   +9 more
doaj   +1 more source

Estimation of quality of hot pressed briquettes as a type of metallurgical charge materials

Литьë и металлургия, 2020
The basic principles of construction are formulated in the work and a description of the technological process of hot briquetting of ferrous metal waste as a way of converting fine metal particles into a dimensional semi-finished product of a given size ...
O. M. D’jakonov, A. A. Litvinko, V. Yu. Sereda   +2 more
doaj   +1 more source

Lode mines of the Lee Goss Mining, Milling & Smelting Company (formerly the Green Mountain Mining Company), Park County, Colorado

, 2022
Mine report no. 1341.Typescript (carbon copy).Report on the lode mines of the Green Mountain Mining Company (now the Lee Goss Mining, Milling & Smelting Company) of Park County, Colorado / Robert S.
Billings, Robert S., Turner, N. P.
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Metallurgy in the Medieval Braničevo [PDF]

Mining and Metallurgy Engineering Bor, 2017
During the archeological researches of the medieval Braničevo at the site Mali Grad-Todica crkva in the Kostolac village, a significant amount of iron slag was discovered.
Spasić-Đurić Dragana, Đurić Radiša, Crnčević Dejan   +2 more
doaj   +1 more source