| 摘要 |
FIELD: metallurgy of non-ferrous metals. ^ SUBSTANCE: invention concerns an area of purifying methods of secondary zinc alloys, their procurement from the auxiliary raw materials, and can be used in metallurgy and mechanical engineering. The method of purifying of the secondary zinc alloys includes processing of an alloy combination with intensifying agent which, when coming into contact with the zinc residual elements, begin to form churlish, heat-resistant phases, and segregate the infusible compounds. Interaction with these intensifying agents and segregation of the infusible phases is carried out by means of passing the molten mass through a foam-ceramic filter with an active ultra dispersal cover obtained as a result of chemical sedimentation of connection between a number of elements belonging to the II-IV Group of the Mendeleev periodic system, coupled with the thermal processing performed under the 1000-1200°C range of temperatures. The technical achievements of this invention result in removal of non-metallic inclusions, increases in consistency of distribution and reductions in composition of led and iron. ^ EFFECT: increase in the quality of zinc alloys when they are purified resulting in procurement of an auxiliary raw material. ^ 2 dwg, 1 tbl |
