Zobrazeno 1 - 10
of 2 051
pro vyhledávání: '"ferrous metals"'
Autor:
Irina A. Saprykina
Publikováno v:
Нижневолжский археологический вестник, Vol 23, Iss 2, Pp 46-58 (2024)
The work presents the results of an analysis of the chemical composition of 82 objects from non-ferrous and precious metals dating from the 4th century BC – the first half of the 2nd century AD and originating from the excavation of funeral monumen
Externí odkaz:
https://doaj.org/article/52c176a560ea4fdcbc3c4b42acf2d488
Publikováno v:
Journal of Hebei University of Science and Technology, Vol 45, Iss 1, Pp 67-73 (2024)
In order to improve the wear resistance and service life of mining sprockets, 40CrNiMoA sprockets cast by centrifugal electroslag casting were selected as the base material to study the effects of heat treatment processes on microstructure and mechan
Externí odkaz:
https://doaj.org/article/07c401b52e2f435f90ac652cd2697af7
Publikováno v:
Руды и металлы, Iss 3, Pp 6-36 (2023)
The countries of the Central Asian region of the CIS – the Republic of Kazakhstan, the Kyrgyz Republic, the Republic of Tajikistan, the Republic of Uzbekistan – have a powerful mineral resource base (MRB) covering almost the entire spectrum of mi
Externí odkaz:
https://doaj.org/article/b540cb6cf08c424bb4debf46f4e94237
Autor:
Goryachev A. A., Makarov D. V., Potapov S. S., Belyaevskiy A. T., Semushin V. V., Kompanchenko A. A.
Publikováno v:
Vestnik MGTU, Vol 26, Iss 2, Pp 137-149 (2023)
The Murmansk region has a significant amount of sulfide copper-nickel raw materials. Deposits of the Nud massif associated with Monchepluton are promising for processing. The Nud II deposit cut-off grade ore with an initial Ni content of 0.45 % and C
Externí odkaz:
https://doaj.org/article/d93643de7ccb4e21860402263649ef2f
Publikováno v:
Vestnik MGTU, Vol 26, Iss 2, Pp 150-159 (2023)
The possibility of processing sulfide copper-nickel raw materials by heap bioleaching due to the environmental attractiveness of this approach is becoming an increasingly relevant topic for mining and processing. On the example of the Allarechensk te
Externí odkaz:
https://doaj.org/article/582aef20954c4847aac535e7375c4349
Publikováno v:
Kuangchan zonghe liyong, Vol 44, Iss 2, Pp 41-44 (2023)
In order to solve the shortage of shear capacity of the conventional axial-flow agitator, a concentrator of Jiama in Tibet has adopted a new type of high-intensity mixing technology and equipment. The mineral particles in the pulp and flotation agent
Externí odkaz:
https://doaj.org/article/c6978029bbeb43d6a27f2952d2352416
Publikováno v:
PeerJ, Vol 11, p e16575 (2023)
Emissions from the non-ferrous metal industry are a major source of carbon emissions in China. Understanding the decoupling of carbon emissions from the non-ferrous metal industry and its influencing factors is crucial for China to achieve its “dou
Externí odkaz:
https://doaj.org/article/e61e249012314132b6eb64e705aae5bf
Autor:
A. I. Sultanov
Publikováno v:
Litʹë i Metallurgiâ, Vol 0, Iss 1, Pp 79-84 (2023)
JSC “Uzmetkombinat” is one of the largest metallurgical enterprises of the Republic of Uzbekistan. Along with the main products – long products from ferrous and non‑ferrous metals of various assortments, steel grinding balls, ferroalloys, the
Externí odkaz:
https://doaj.org/article/25f84f39ffbb4ba393898fdbb4c422cf
Publikováno v:
Арктика и Север, Vol 49, Iss 49, Pp 224-238 (2022)
In the Middle Ages, the Russian state, formed around Moscow, was in dire need of metals. However, only comparatively poor quality swamp iron was mined on the territory of the Russian principalities. There were no deposits of copper, silver, gold, or
Externí odkaz:
https://doaj.org/article/5646a1f7ddd14a24b2e167e93099aeb2