Results 111 to 120 of about 502,626 (153)

Investigative research for occurrences of hydrogen, helium, methane and carbon dioxide in West Macedonia: linking geological reservoirs to subsurface gas generation and migration. [PDF]

Open Res Eur
Tyrologou P, Koukouzas N, Couto N, Stergiou CL, Carneiro J.   +4 more
europepmc   +1 more source

Impact of spraying commercial Bentonite Nanoclay on fortification of the mortar as Nano Sprying Technique (NST) in heritages and historical buildings. [PDF]

Sci Rep
Jalalifar S, Niroumand H, Afsharpour M, Rajabi S, Balachowski L.   +4 more
europepmc   +1 more source

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Interfacial behaviors between ZG13Cr9Mo1VNbN stainless steel and chromite sand

Journal of Iron and Steel Research International
Lingzhong Kong
exaly   +3 more sources

Iron and Steel Castings and Core Production Results from Finer Grades of Chromite Sand in Shell Applications

International Journal of Metalcasting
VÍCTOR Lafay
exaly   +3 more sources

Studies Regarding the Use of Molding Mixtures Based on Chromite-Sand to the Casting of the Steel Parts

Solid State Phenomena, 2016
This paper presents a critical analysis of molding technology a steel castings (340-550W steel grade), of the Toothed framework type. This casting is used to manufacture an reducer on 125kW (is a subset of the reducer). In the industrial practice, for the casting by Toothed framework type, cast of steel is used a molding mixture based on chromite-sand,
A. Josan
exaly   +3 more sources

Fine milling of chromite sand in a 5-litre stirred ball mill

Minerals Engineering, 1994
Abstract A 5-litre vertical batch stirred ball mill was used to study comminution characteristics. Chromite sand was used as the feed. A factorial design was prepared with the following parameters, which influence grinding in a stirred ball mill: pulp density, pin-tip velocity, ball density, and size.
M. Tüzün, B. Loveday
exaly   +3 more sources

The Impact of Chamotte Sand on the Mechanical and Physical Characteristics of Ceramic Molds Made of Chromite Sand

Jurnal IPTEK
Casting flaws are common in the high-temperature steel casting process, particularly surface flaws and rough surfaces. One option to avoid these surface defects is to use sand with a higher melting point, like chromite sand. This study is an extension of
Ellyawan Setyo Arbintarso, Sugeng Slamet, Rahayu Khasanah, S. Suharto, Riswan Aliyadi, Andri Trihendriana   +5 more
semanticscholar   +2 more sources

OPTIMISATION OF THE BENEFICIATION PROCESS OF CHROMITE SAND TO PRODUCE RAW MATERIAL FOR RAPID SAND-CASTING PURPOSES

South African Journal of Industrial Engineering
This study focuses on optimising the beneficiation process of South African chromite sand for use in rapid sand-casting applications, particularly for three-dimensional printing (3DP). South Africa’s vast chromite reserves provide a unique opportunity to
N. Tshabalala, K. Nyembwe
semanticscholar   +3 more sources

Reduction process of low-grade chromite sand using calcium carbonate and calcium sulfate as additives and coal as reductant

AIP Conference Proceedings, 2020
The magnetic separation and reduction are conducted as a beneficiation process to increase Cr/Fe ratio of low- grade chromite sand. Magnetic separation was performed both before and after the reduction process, which was conducted for 60 minutes at 1000 °C with various reductant amount, i.e.
B Suharno
exaly   +3 more sources