Number 8, 2009
ИЗДАТЕЛЬСКИЙ ДОМ «ЛИТЕЙНОЕ ПРОИЗВОДСТВО»
Издательский дом «Литейное производство» выпускает два специализированных научно-технических журнала с периодичностью: «Литейное производство» – ежемесячно, «Металлургия машиностроения» – 1 раз в 2 месяца.
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Abstracts:



Budanov Y.N. The Seven Main Myths and Delusions about Foundry
Technical delusions disturb to create competitive foundry manufactures. The main thing is the experience of the best foundries in the world. The developed foundry manufacture should correspond to world parameters of efficiency: to casting output volumes (t/a) per employee and per sq. meter of the occupied areas. Innovations of expendable forms - Seiatsu-process and Vprocess provides the most qualitative and most cheap casting
Key words: expediency of technology selection, efficiency laws

Sobolev A.A. On the Issue of Pneumatic Sand Classification
A patented pneumatic sand classifier design is presented. Its diagram is given, and operation described.
Key words: quartz sand, dust removal, pneumatic classifier, humidity

Jan van Wijk. Clay-bonded Sand Reclamation systems being used in Europe
Jan van Wijk discusses the wet, thermal and mechanical reclamation processes required in the face of enhanced environmental regulations, the high costs of dumping and the increasing scarcity of high-quality bentonite.

Kolchurina I.Y., Selyanin I.F. Effect of External Action on Microstructure of Solidifying Alloy
Results of investigations into solidification of an Al alloy with 1.5% Fe in magnetic field and under exposure to electric current are given. It has been shown that treatment of the alloy with electromagnetic field during solidification makes it possible to produce castings with a homogeneous, fine-grain structure. Formation of fine-grain structure at the edge of a sample casting, and concentration of non-metallic inclusions and gas holes in the center is noted.
Key words: aluminium alloy, inoculation, electric current, magnetic field, directional solidification, microstructure.

Doroshenko V.A. Digital Technologies and Low-Pressure Die Casting of Parts from Aluminium and Magnesium Alloys
Capabilities of prototyping process for making molds, cores, lost-foam patterns are discussed. It is suggested that this promising method should be applied in the production of dies for low-pressure die casting. Key words: computer tomography, 3D image, low-pressure die casting, thin-wall castings.

Selivanova Y.A., Chernov V.P. (GOU VPO "MGTU", Magnitogorsk) Analysis of Heat Resistance of Investment Casting Shell Molds
Enhancement of heat resistance of investment casting shell molds contributes to casting quality improvement and cost reduction. In c e r a m i c s h e l l (CS) production, quartzcontaining materials are often used as a slurry filler and a cover material. However, such shells have a lower heat resistance. Replacement of quartz sand with different materials having no polymorphic transformations will contribute to enhancement of heat resistance of shells, improve dimensional accuracy of castings, and reduce casting rejects. It is shown that ash from heat electropower stations has the most suitable characteristics for CS production. Key words: heat resistance, ceramic mold, polymorphic transformations, heat capacity, linear expansion, quartz sand, ash from heat electropower station, blast furnace slag.

Anisimov A.V., Tararyshkin V.I., Kostikov V.I., Shtankin Y.V. Centrifugal Cast Master Alloys for Aluminium Alloy Casting Manufacture
It is suggested that master alloys should be made by centrifugal casting. Investigation of master alloys made by that method showed the possibility of obtaining in them a finer grain than in those made by the conventional method.
Key words: master alloy, fine grain, centrifugal casting, cooling rate, intermetallism.

A.B. Finkelstein, S.N. Zlygostev (UGTU, Yekaterinburg) Shrinkage cavity formation in composite castings
Formation of shrinkage cavities in composite castings made by vacuum impregnation method was investigated. Advices for minimization the head of casting has been worked out.
Key words: composite casting, shrink hole, riser, volume fraction of melt, effective composite temperature.

Repyakh S.I. (OOO "ITL" Lasso", Dnepropetrovsk, Ukraine) Tendency of Pattern Materials to Warping and Cracking in Investment Casting Patterns
The ratio between the temperature of casting material's transition from plastic state to elastic state and the temperature of material crystallization is suggested as a criterion of material's cracking resistance and tendency to warping in castings.
Key words: casting, cracking resistance, warping, temperature, shrinkage, material, criterion.




Table of Content

Budanov Y.N. The Seven Main Myths and Delusions about Foundry

Sobolev A.A. On the Issue of Pneumatic Sand Classification

Jan van Wijk. Clay-bonded Sand Reclamation systems being used in Europe

Kolchurina I.Y., Selyanin I.F. Effect of External Action on Microstructure of Solidifying Alloy

Doroshenko V.A. Digital Technologies and Low-Pressure Die Casting of Parts from Aluminium and Magnesium Alloys

Selivanova Y.A., Chernov V.P. (GOU VPO "MGTU", Magnitogorsk) Analysis of Heat Resistance of Investment Casting Shell Molds

Anisimov A.V., Tararyshkin V.I., Kostikov V.I., Shtankin Y.V. Centrifugal Cast Master Alloys for Aluminium Alloy Casting Manufacture

A.B. Finkelstein, S.N. Zlygostev (UGTU, Yekaterinburg) Shrinkage cavity formation in composite castings

Repyakh S.I. (OOO "ITL" Lasso", Dnepropetrovsk, Ukraine) Tendency of Pattern Materials to Warping and Cracking in Investment Casting Patterns

Valery Ivanovich Ovcharenko. On the occasion of the 60th birthday anniversary

Komarov O.S. et al. Cost Reduction of Complex Inoculation be Using Recycled Materials

Boldin A.N. et al. Peculiarities of High-Strength Cast Iron Production from Recyclable Resources

L.V. Nikulin et al. Copper Silumins for Die Casting Motorcycle Parts

V.M. Gruzman On the Fate of Frozen Molds

Obrezkov V.V. et al. The Advantages of Water Glass Preparation from Dry Concentrate

V.V. Nazaratin et al. Designing a Process of Making Large-Size Steel Castings of the "Gear Wheel" Type

Y. A. Chernyshov et al. Mold Erosion, its Causes and Methods of Prevention

A.V. Koltygin et al. Measurement of Thermal Properties of Molding Materials when Making Foundry Molds by the Three-dimensional Printing Method

A.I. Yevstigneyev et al. Investigating the State of Electrophoretic Shell Molds during their Calcination

S.I. Repyakh Effect of Production Parameters on Dimensional Accuracy of Investment Casting Patterns





Русская версия

July 2009

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