New methods of dry sand packing in the manufacture of molds without binders, and control method of vibration compaction of sand in these forms with the transmitter are considered. The examples of models and castings with channels of complex shape, received with a one-time model with optimum compaction of sand are shown.

The basic mechanisms of Al-Si alloysmodifying are determined. Fast solidification and inheritance modification are major in casting of alloys with a highly dispersed and inverted microstructure.

The results of a patent search on the history of use in industrial coatings for dividing casting of aluminum alloys in the last 75 yearsare presented.

The technology of separate extraction of bismuth and molybdenum from spent catalyst was presented and information on the effectiveness of its use in a composition of comprehensive modifier in the iron-carbon alloy was given.

Efficiency of hydrometallurgical leaching of molybdenum with alkali, soda and ammonia in course of processing of spent catalysts was considered.

The analysis of influence of changes in the structure of the metal base of high-duty cast ironcompact castings with a constant form of graphite inclusions on the coercive sensitive magnetic parameters and the speed of sound is held. The efficiency of joint use of the results of magnetic and ultrasonic measurements to control the shape of inclusions in the iron and pearlite content in its metallic matrix is shown.

The modeling of the shrinkage processes in the steel casting with a head for the different modes of instant steel casting for isotropic heat dissipation with different initial temperature of the metal was held. The calculations of the statistical distribution of temperatures and densities for various moments of time in the crystallizing casting with a head and comparative analysis with the density distributions in the cast without a head for similar temperature conditions are made.

The influence of changes in the thermal conductivity of vacuum-film mold at production of cast iron castings «body» was studied. Three variants of the gating system with different thermal conductivity l, 0,6 l and 0,4 l are considered. The dependencies of speed change and its projections on the time of filling in the allocated form points were established. Statistical distributions of temperatures in the casting for various moments of times are calculated. The technique of the formalization of statistical distributions characterizing the quantification of different groups of grid elements on the average temperature of the object was offered.

Based on gray cast iron microstructure with different lengths of flaky graphite inclusions contained in GOST 3443-87 «Cast iron with various forms of graphite. Methods for determining the structure «shows the possibilities of classification of microstructures ПГд15, ПГд25, ПГд45, ПГд90, ПГд180, ПГд350, ПГд750 and ПГд1000 based on image processing techniques that allows to develop a methodology for the transition from qualitative scale of microstructures used for the analysis of the graphite phase, to quantify.

Peculiarities of structure formation of steel 80K after austenization with the subsequent cooling with speed ~15 °С/sec within 1-20 seconds and with final cooling in water are studied. The scientifically reasonable energy saving models of a sorbitizing of high-carbon wire rood, which allow to lower energy consumption while maintaining the pace of productions and provision o of the necessary quality and process performance are developed and implemented on the mill 150 OJSC «BSW – MHC «BMC».

The technology of chrome plating on the mandrel of continuous rolling mill, used in tube-rolling shop of «Byelorussian Steel Works» was shown. Development of technology enabled to reduce considerably funds for their purchase.

The transformation of the steel-smelting defect «netlike cracks» at all stages of processing from continuous casting to finished product was studied.

It is shown that the use of calcined magnesia-lime flux in the Belarusian Steel Works increased the content of magnesium oxide at the average to 11.2%.

Questions of the improvementof the efficiency of technology direct doping of steel and alloys by thermodynamic modeling of recovery of target metals from complex oxide system Cr₂O₃-MnO-SiO₂are shown.

The program, presented in this article enables to use fully the developed methodosgy for the calculation of metal-burden components consumрtion norms, thus reducing the effort required to conduct analytical work and improve the efficiency of the analysis results in management decisions

The data on the development of induction technology in the Republic of Belarus on the example of the Minsk Automobile Plant are given. Their development began at the end of the fifties at the Minsk Tractor Plant, and the highest development has been obtained at the Minsk Automobile Plant from 1983 to 2008. The short features of energy-efficient processes created at MAZ in collaboration with country’s institutions are given: surface hardening on the contour of gear wheels, a body-surface-hardened gears and satellites, the impulse hardening of complex configuration, the heat treatment of long items and bulk materials, etc.

The aim of the work is development of coatings with composite macroheterogeneous structure that are characterized with good antifriction properties and able to perform in severe working conditions. To form coating a CO₂-laser was applied.

The examination of Ipsenchamber units are held.Control of carbon distribution through the thickness of the diffusion layer after thermochemical treatment for serial manufacturing process is executed. Theinstability of indications used in the line of Ipsenchamber units oxygen sensors after one year of exploitation is identified.

The prospects of application of mechanically alloyed ligatures for the production of chromium and chromium-zirconium bronze is shown. The composition, structure and properties of chromium and chromium-zirconium bronzes produced with the use of mechanically alloyed ligatures are studied.

The regularities of metal crystallization, in particular, the dependence of melt critical overcooling on preliminary overheating conditions are investigated theoretically taking into account modern conception of melt cluster structure. The peculiarities of crystallization process following immediately after melting process without melt overheating are considered.

The peculiarities of production of bimetallic parts while combining molding processes of cross-wedge rolling are considered. The possibility of manufacturing of a hollow items such as «shaft» in the process of rolling of two different steel parts, namely molded bushing and the base material was shown. It is established that the process of the parts welding occurs due to the high compressive stresses on the interface between two dissimilar metals. As a result along the whole contact area formed a welded joint, the strength of which exceeds 34% of the strength of the steel 45 and judging the microstructure can reach it.

It is proposed to use the J-integral criterion that takes into account the plastic deformation at the crack tip for layered materials based on high-strength steel 38HN3MFA alloys and erosion resistant cobalt alloy ЭП 131, molybdenum alloy MT, which are destroyed according to the laws of elastic-plastic mechanics. The experimental technique for determining and numerical calculation of energetic J-integral has been described. Numerical modeling of the destruction process has shown good convergence with experimental researches. There was shown that the high-velocity deformation at explosive processing of steel forms structure with high parameters of strain crack toughness and significant increase of yield strength of a material.

The evaluation of the expediency of the introduction of normalizing in air emissions and waste water by total organic carbon content based on four aspects: peculiarit y of TOC analysis, expressivit y of TOC analysis, the price of instruments and the field of application of TOC analyzers. At the present time using TOC as normalized indicators in water, air, waste and soil in the Republic of Belarus is not appropriate.