Abstracts:
N.N. Alexandrov et al. High-Strength Nodular Iron - a Unique Structural Material of the 21st Century
The uniqueness and availability of nodular iron by its technical and economic characteristics is shown. Advantages of nodular iron as a material for containers for storage and transportation of irradiated nuclear fuel with a guaranteed period of safe service of ? 50 years are noted.
references
A.V. Afonaskin Technology of Complex Inoculation of Cast Iron in Making Chill-free Gravity Die Castings with Predetermined Properties
Complex inoculation of iron castings using a number of inoculants including those with bismuth and tellurium to reduce chill in gravity die castings for vacuum pumps.
references
Ivanov D.M. et al. Effect of inoculation on graphite number in indefinite irons
The application of modification allows to change the shape and distribution of graphite in cast iron efficiently. The research of graphitization process of the complex alloyed cast iron, that solidifies in the chill mould under action of centrifugal forces, allows to optimize the technological parameters of modification in the sheet rolls production. The main purpose of this research is obtaining of the necessary shape and graphite distribution that depend on silica content during modification, temperature of metal, pouring and solidification process. The necessary shape and graphite distribution should correspond to 4 6 points. It gives a 14% increase of the working properties of sheet rolls.
references
Nikulin L.V. Strength factors of die-cast al-si alloys
The kinetics of the solidification process of a steel casting from high-nitrogen (~ 0.5% N) high-strength corrosion-resistant steel of the type 05X22АГ15Н8М2Ф in a foundry mold have been investigated. The crystallization range of the steel (1385…1330°C) has been determined by calculations and experimentally, its casting-process parameters have been studied. Temperature dependence of solid phase precipitation within the range of crystallization has been established. It has been shown that steel with ~0.5% N is a highly manufacturable foundry material and can be used to make critical cast parts of high quality and complex configuration.
references
Nazaratin V.V. et al. Kinetics of Solidification and Casting-Process Properties of a New High-Nitrogen Corrosion-Resistant Steel
Factors contributing to higher strength of double and multicomponent silumins in die casting are discussed. The relative fraction of eutectic component at crystallization under non-equilibrium conditions has been determined. A special structure of the eutectic grain has been revealed. A micro-X-ray-spectral analysis of primary crystals and the eutectic component of triple Al-Si-Cu alloys and additionally alloyed alloys has been performed. Predominant alloying of the ?-phase of the eutectic has been established. Density of dislocations in solid Al solutions caused by both alloying and die casting specificity has been evaluated.
references author's details
Sirotkin D.Y. New Technologies and Materials at OAO AVTOVAZ's Foundry
Basic materials (low-melting alloy - molding sand) for the process of manufacturing forming tools under the conditions of pilot and small-scale production, said materials being domestic analogs of imported materials supplied by the company HEK GmbH (Germany) have been developed.
references author's details
Sapchenko I.G. et al. Production of a steel founding with application of thermit lost heads
The technics of casts production from a mechanical engineering waste in foundry manufacture according to which the lost heads made from thermite mixtures are applied that allows after performing exothermic reactions to receive moulding from high-quality brands "thermite" steels. Use of the given process allows to reduce the expense of moulding materials, effectively to utilise metall wastes, it is essential to raise ecological parametres of manufacture. Keywords. Exothermic reaction, lost head, a casting mould, thermite steel.
references author's details
Mukhomorov I.A. The Finning Defect. Causes of Origination and Measures of Prevention
A new mechanism of formation of casting defect finning is proposed. New proposals for the prevention of that defect are given.
references author's details
Table of Content
N.N. Alexandrov et al. High-Strength Nodular Iron - a Unique Structural Material of the 21st Century
A.V. Afonaskin Technology of Complex Inoculation of Cast Iron in Making Chill-free Gravity Die Castings with Predetermined Properties
Ivanov D.M. et al. Effect of inoculation on graphite number in indefinite irons
Nikulin L.V. Strength factors of die-cast al-si alloys
A.V. Monastyrsky Simulation of Casting Processes. Working in "PolygonSoft"
Nazaratin V.V. et al. Kinetics of Solidification and Casting-Process Properties of a New High-Nitrogen Corrosion-Resistant Steel
Sirotkin D.Y. New Technologies and Materials at OAO AVTOVAZ's Foundry
Sapchenko I.G. et al. Production of a steel founding with application of thermit lost heads
Mukhomorov I.A. The Finning Defect. Causes of Origination and Measures of Prevention
| 
