Search Results - "crystallization"
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Features of calculation of two-case vacuum-evaporating crystallization
Published 2012-04-01Subjects: Get full textA technique for calculating a two-case vacuum-evaporating crystallization installation was considered. The first case of the installation it is used for concentrating the initial solution by its evaporation. The second case is used for evaporating crystallization. Thus, secondary steams of the evapo...
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Materials and Developments Heinrich Wagner Sinto Maschinenfabrik GmbH
Published 2019-04-01Subjects: Get full textThe company Kutes Metall equips its foundry with a SEIATSU molding plant manufactured by Heinrich Wagner Sinto. The special feature of this molding plant. The SEIATSU.plus compaction process which enables different compaction techniques and combinations depending on requirements. In particular, with...
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CALCULATION OF HEAT CAPACITY IN MEAT DURING ITS FREEZING CONSIDERING PHASE CHANGE
Published 2020-04-01Subjects: “…crystallization…”As a consequence of insufficient study of water phase change in meat accompanied by water crystallization, its modeling is currently based on the empirical dependence of the frozen water portion on temperature. Such model does not allow answering a number of questions such as of metrological order,...
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Alumina miniplant operations evaporative crystallization of aluminum nutrate monahydrate from aluminum nitrate solutions
Published 1983 Subjects:Book -
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Crystall growth from high-temperature solutions /
Published 1975 Subjects: “…Crystallization.…”
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Crystallization as a separations process /
Published 1990 Subjects: “…Crystallization.…”
Conference Proceeding
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Crystallization of metals and alloys. Problem. Solutions
Published 2018-10-01Subjects: “…crystallization…”For a solution of the problem of crystallization of metals and alloys it is necessary to take for granted that the basic construction elements in forming crystals are nanocrystals of phases. Specific interphase surface energy of a crystallization center is directly proportional to its radius. Hydrog...
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Non-isothermal crystallization and melting of ethylene-vinyl acetate copolymers with different vinyl acetate contents
Published 2008-09-01Subjects: Get full textNon-isothermal crystallization and subsequent melting of three grades of ethylene-vinyl acetate copolymer were investigated by differential scanning calorimetry (DSC) technique. The DSC crystallization curves show that vinyl acetate (VAc) content has the same effect on the onset, peak and final crys...
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Solutions of the scientific problem of modifying of foundry alloys
Published 2019-01-01Subjects: Get full textFor a solution of the problem of modification of a microstructure of cast alloys it is necessary to accept admission that crystallization centers of crystals of phases are the crystalline buildups consisting of nanocrystals of phases. The role of modifiers comes down to lower concentration in a meta...
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Current state of metal melt crystallization theory. Foundry production and metallurgy
Published 2022-03-01Subjects: Get full textThe classical theory of crystallization of metal melts has been investigated. It is shown that it does not correspond to the second law of thermodynamics. Based on thermodynamic analysis, it was found that the classical theory of crystallization of metal melts is very problematic. To solve theoretic...
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Hydrogen chloride sparging crystallization of the chloride salts of cobalt, manganese, and nickel /
Published 1984 Subjects:Book -
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Management of Energy Flows in Low-temperature Separation Units
Published 2018-04-01Subjects: Get full text. The aim of this work is to study the effect of medium and low power ultrasound on the crystallization and separation processes. A thesis about the importance of using thermal energy converters in separation units has been suggested. The prospects of desalination freezing units and ways of their im...
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A novel anti-crystallization solar-driven absorption chiller suitable for global warming
Published 2025-09-01Subjects: Get full textIn this work, a new low-carbon anti-crystallization design of the solar driven absorption chiller, operating with a refrigerant R718 and a LiBr as absorbent, is proposed, investigated and adapted to hot regions influenced by global warming.A parametric study based on detailed thermodynamic modeling...
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THERMODYNAMICS AND NANOSTRUCTURAL MECHANISMS OF PROCESSES OF MELTING AND CRYSTALLIZATION OF METALS
Published 2016-12-01Subjects: Get full textMelting and crystallization of metals are equilibrium thermodynamic processes. As the main structural units of dendrites serve construction nanocrystals which are formed of elementary nanocrystals. The main mechanisms of processes of melting and crystallization of metals are disintegration of dendri...
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NANOSTRUCTURIZATION IN FOUNDRY PROCESSES
Published 2018-01-01Subjects: Get full textIt is shown that at crystallization of alloys the sophisticated nanostructural processes have place. The nanocrystals of phases, their atoms, the centers of crystallization of dendrites, surface-active elements, gases, modifying elements, poorly soluble impurity elements generally participate in the...
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