نتایج جستجو برای: refractories
تعداد نتایج: 483 فیلتر نتایج به سال:
The partial replacement of primary raw materials for the production refractories with recycled ones gains in importance, as it contributes to conservation natural resources, energy saving, and reduction greenhouse gas emissions. In this work, use a magnesia–carbon (MgO-C) recyclate fractions 3–6, 1–3, 0–1 mm material MgO-C was investigated. examined via optical scanning electron microscopy. Usi...
New observations of the abundances and energy spectra of the isotopes of Mg, Al, and Si from ACE/CRIS are used to extend our previous results on the composition of refractory nuclides in cosmic-ray source material. For the 18 nuclides considered for elements between Mg and Ni, relative source abundances are generally consistent with solar-system values to within 20%. The Fe abundance, taken rel...
The difficulty in measuring load temperatures inside reheating gas furnaces may be circumvented by appropriate use of on-line numerical models. In this article we describe a model of pusher furnaces, used to reheat steel slabs. The model uses thermocouple measurements at fixed positions inside the furnace to calculate the temperature of the combustion products, and takes into account radiative ...
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