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The kinetics of compaction of two widespread charge mixtures, namely, Ti-B and Ti-C-Ni, is investigated. These mixtures are used in definite ratios to obtain synthetic hard-alloy tool materials. Based on the experimental results, the rheological properties of the mentioned powdered systems are determined.  相似文献   

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The behavior of nitrogen is studied during steelmaking in a 120-t arc furnace using a solid metal charge. The nitrogen content in steel is shown to be decreased when the fraction of a light metal scrap in a charge increases and the fraction of a heavy metal scrap decreases.  相似文献   

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Translated from Poroshkovaya Metallurgiya, No. 10 (346), pp. 86–88, October, 1991.  相似文献   

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The thermodynamics of tapping, dephosphorization, and out-of-furnace treatment of steel in a ladle and the related phosphorus balance are considered, and the main technological and thermodynamic parameters for decreasing the metal dephosphorization are found.  相似文献   

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介绍了山西太钢不锈钢股份有限公司5座电炉的炼钢设备状况,针对钢种的冶炼特点、原料条件开发出了不同的电炉冶炼工艺流程。着重阐述了电炉冶炼碳钢和不锈钢的相关工艺技术的应用与发展情况。  相似文献   

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The problems of iron evaporation during steelmaking in an arc steel-melting furnace are considered. A procedure is developed for the calculation of the specific iron evaporation rate and the heat losses during evaporation. More complete absorption of the heat of condensation by a charge and the oxidation of iron vapors are shown to be promoted by the following factors: the presence of a slag coating, a decrease in the well diameter, an increase in the well depth, an increase in the electrode failure diameter, and directional supply of an oxidizer to the near-electrode zone.  相似文献   

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Il'ich Zhdanov Metallurgical Institute. Translated from Metallurg, No. 10, pp. 40–42, October, 1988.  相似文献   

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