ISSN:
1573-9139
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Conclusions Fusion of a mixture of chemically pure sintered magnesite powder and chromite ore gave a high-density periclase-chromite having a low content of silica, calcium oxide, ferrochrome, and silicates and meeting the requirements for a starting material for refractories and ramming compounds for the chamber lining of steel-vacuuming equipment. Up to 25% of the sintered crust may be used once in the batch provided it contains not more than 2.4% silica. The crushed blocks may be used for subsequent fusion for the production of a high-grade periclase-chromite material. When fusing a magnesite-chromite batch containing 15–20% chromite the productivity of the arc furnace is 57% higher and specific power consumption 33% lower than in fusing sintered magnesite. A relatively high productivity, viz. 180 kg fused periclase-chromite per hour, was attained in arc furnaces of 560 and 750 kVA at a fusion time of 7.3–7.8 h which gives one block weighing 1380 kg per eight-hour shift.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01287161
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