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Boldyrev D.A., Ivanov S.V., Popova L.I., Davydov S.V., Panov A.G. Peculiarities of inoculation and graphite formation in hypo- and hypereutectic gray irons
It is shown that after the graphitizing ladle treatment of molten hypereutectic gray iron by the under stream method with a single portion using inoculants based on FS65- FS75 with an alkaline earth metals (AEM) complex its structure in the zones crystallizing after eutectic transformation is characterized by a whirled shape of PGf2 distributed in the form of PGr3 graphite colonies. The favorable structure of high-carbon hypereutectic gray iron represented by the uniform distribution of PGr1 graphite, mainly of rectilinear shape of PGf1 with a minimum amount of whirled shape of PGf2, is achieved by the graphitizing treatment of the melt with anAEM inoculant having an increased Ca, Ba and Sr content.
Key words: High-carbon hypereutectic gray iron, inoculation, structure.

Eparkhin O.M., Alov V.A., Popkov A.N., Karpenko V.I., Homets U.S. Improving the reliability of cast details made of frictional cast iron
This article describes ways of improvement the reliability and exploitational properties of details of frictional mechanisms made of grey frictional cast iron with using of modifications and microalloying.
Key words: Frictional cast irons, modification, wear resistance, high constant of friction, quality improvement.

Abalymov V.R., Zhereb V.P., Kleimenov Y.A. Usung scrap material for casting of alloy wheels
This study demonstrates optimization of scrap material involvement into eutectic silumin in order to provide customer required product characteristics. Optimization was performed based on research of relation of durability/hardness properties to chemical composition of batch.
Key words: Silumins, iron, calcium, shaving, waste production.

Korotchenko A.Y., Turuntaev I.V., Tverskoy M.V., Khilkov D.E. The development of special methods of casting
Provides basic information about the creation of the Department Foundry technology scientific-production center technology of injection molding MGTU im. N.Uh. Bauman. One of the activities of the centre creation of experimentally-pilot production of castings using MIM-technology. The basic stages of technological process of manufacturing parts by MIM-technology, the features and benefits of this technology.
Key words: MIM-technology, injection molding, sintering, feedstock, powder, binder.

Livshits V.B., Popov Y.I., Bezpalko V.I. Effect of pressure on the physical-and-mechanical properties of Al-Cu alloy castings
Discussed are the issues of compacting pressure effect during crystallization of Al-Cu alloy castings on their physical-and-mechanical properties It is shown that the effect of pressure on the melt, as compared to chill casting, refines the structure of castings, increases the copper concentration in solid solution after hardening, increases hardness, resistivity and the thickness of gallium diffusion layer applied to the surface of casting specimens.
Key words: Casting, compacting, crystallization, physical-and-mechanical properties, diffusion, hardness, macrostructure, resistivity.

Doroshenko V.S., Kravchenko E.V. New methods of sampling in identifying properties of the metal by thermal analysis with the ability to optimize casting designs
Made a modification method for thermal metal analysis by synthesizing it with the elements of the sample casting technology vacuum suction method Lost Foam Casting Process or V-process. The capabilities of the method for quality control of ductile iron with inmold-process and optimize designs to reduce their casting of metal.
Key words: Thermal analysis, ductile iron, Lost Foam Casting Process, V-process, modifying, inmoldprocess, quality control, vacuum suction of metal, design optimization, saving metal.rmal analysis with the ability to optimize casting designs




Table of content

Currant state and scientific-and-technical potential of the foundry industry in St. Petersburg and Leningrad region

Boldyrev D.A., Ivanov S.V., Popova L.I., Davydov S.V., Panov A.G. Peculiarities of inoculation and graphite formation in hypo- and hypereutectic gray irons

Eparkhin O.M., Alov V.A., Popkov A.N., Karpenko V.I., Homets U.S. Improving the reliability of cast details made of frictional cast iron

Abalymov V.R., Zhereb V.P., Kleimenov Y.A. Usung scrap material for casting of alloy wheels

Korotchenko A.Y., Turuntaev I.V., Tverskoy M.V., Khilkov D.E. The development of special methods of casting

Livshits V.B., Popov Y.I., Bezpalko V.I. Effect of pressure on the physical-and-mechanical properties of Al-Cu alloy castings

Doroshenko V.S., Kravchenko E.V. New methods of sampling in identifying properties of the metal by thermal analysis with the ability to optimize casting designs

Kechin V.A. Providing human resources for technological development of the foundry industry




January 2016


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