With а view to improve operation and technological properties of engine valve seats, composition of chromium cast iron has been optimized and a mathematical model of castings hardening has been worked out which allows to calculate cross sectional area of a feeder depending on the alloy temperature, form temperature and hydrostatic head. Optimization of technological process secured stability of valve properties and eliminated porosity spoilage.

Structure peculiarities of the uniform range of core making machines for production of sand cores with hardening in heated rigging are considered and their technical characteristics are given.

The article describes improvement of quality of liquid glass by its modification with water-soluble materials during autoclave solution of a silicate block.

A brief description of the present situation in foundry production in the Ukraine is given. On the grounds of the analysis of the alloy structure of casting the ways to improve the cast alloys quality are suggested.

The influence of complex doping on the structure formation and characteristics of chromium-vanadium cast iron is considered. Influence of the quantity of carbides in the structure of cast iron on its wear resistance is marked.

Possibility of use of complex modification of hypereutectic gray cast iron by graphitizing and antigraphitizing additions for manufacture of castings with high antifriction and antiscratching properties is shown.

А new method of casting alloys with inverted structure is proposed. 

Peculiarities of structure formation in hypereutectic silumin with inverted microstructure at horizontal continuous casting have been investigated.

The investigation results of creation of cast materials operating under conditions of intensive wear conjugated with impact influences are presented.

The report describes the computer aided measuring system allowing to define optimal pressing effort of pulling stand rolls depending on the casting drawing force.

The character of melt moving in a crystallizer and the billet formation mechanism during vertical continuous casting of wire from non-ferrous and precious metals are described in the article.

The stages of processing of chip and smali-scaie wastes of aluminum alloys are described.

Description of main types of pistols, their construction peculiarities and materials used for their manufacture is given. Applied technologies of strengthening of most loaded pistol elements and creation of optimal thermal conditions of their operation are presented.

Thе given investigations established positive influence of flux composition, mixing and preparation during processing of dispersion and oxidized wastes of aluminum alloys in short-flame rotary furnace. Substitution of cryolite in chlorine-containing flux with fluorspar is proved advisable.

The investigation results of structure and properties of iron shot of MAZ production in as-cast condition and after tempering during induction heating to 280—450 °C are presented. It is shown that during induction heating tempering processes run completely during 5—7minutes' heating. Due to tempering, in purification operations durability raises by 3—5 times.

The article is devoted to primary processing of ferrous and non-ferrous metals with explosion power.

Wheelabrator is a world leader in surface preparation technology, offering a complete range of airblast, wheelblast and mass finishing solutions.

А brief description of the technology of an adsorptionbiochemical installation for purification of ventilation air from triethylamine and accompanying substances is given.

А problem of reduction of specific electric energy consumption during electric furnace smelting of cast iron and steel is examined. Analysis of known methods of primary heating of charge is carried out, variants of single- and two-stage installations of gas heating of metal charge are suggested.

Information about physical and chemical discharge during cast iron and steel melting is received and defined more exactly, interconnection of discharge characteristics with technological and construction parameters of furnaces is established. Comparative analysis of degree of influence of different smelting variants on the environment is given. A list of standards of cupola discharge is proposed.

The results of investigation of noise level at the working places of founders, their influence on the workers are given and mathematical dependencies are received.

On the basis of multilayer filter elements of mineral raw material of the Republic of Belarus an installation for purification of industrial water in foundry production has been worked out.

The computer method of simulation of thermal stress condition of three-dimension parts is suggested. The results of deformations and stress simulation in different points of a part distributed in space are obtained.

The work is of interest to the enterprises operating open type cupola. The suggested method of afterburning ensures reduction of CO level below maximum permissible concentration.

Systems of “direct” and “hidden” types of bottom^ purging of metal by inert gases in a powerful arc steel-melting furnace are investigated and implemented. The given investigations established positive influence of flux composition, mixing and preparation during processing of dispersion and oxidized wastes of aluminum alloys in short-flame rotary furnace. Substitution of cryolite in chlorine-containing flux with fluorspar is proved advisable.

Technology of differentiated deoxidation of cord types of steel is worked out, allowing to reduce non-metallic steel pollution and, as a result, to reduce end breakage at metal cord laying.

А technology of ball bearing steel at the "Belarussian Metallurgical Plant"RUP is worked out and possibility of its production is demonstrated. Technological parameters of smelting, pouring and rolling of steel are given.

Experimental investigation techniques of thermal condition during hardening and heating of large steel ingots made in industrial conditions with account of specific features of production organization and heating units are worked out. Regularities of hardening and heating of blooming and slab ingots are analyzed.

It is shown that with real drawing-down coefficients used in stand finishing blocks at hot rolling of steel wire rod the rolling speeds when metal can break in strand exit plane are impossible to reach in practice. At rolling of nonferrous wire rod in existing blocks of finishing stands it is necessary to take into account influence of dynamic effect in the deformation centre and to define maximum rolling speed securing solidness of metal at its exit from stands.

On the basis of investigation results analysis it's been^ established that influence of mass forces on the moment arm coefficient with rolling speed of up to 150 m/s at exit from the block must be taken into account in the last two or three block stands; joint influence of interst and efforts and mass forces on the coefficient of moment arm mostly affects odd block stands, which must be considered while calculating power rolling parameters.

Methods of calculation of wire strained and deformed condition while laying are analyzed. Results of calculation of wire deformation is conditions of experimental stand worked out at Belarussian Metallurgical plant are given.

Results of industrial experiment are given and regularities of rolling out of surface defects of artificial origin are investigated at rolling of continuous castings at the rolling mill 850 of Belarussian metallurgical plant

The capabilities of the atomic-emission analysis in the foundry industry are shown when the composition of the starting raw material and final production are controlled. Both the operation principle and basic characteristics of a new atomic-emission spectrometer "EMAS-200", with a linear photodiode emission detector employed in its spectra recording system, are described. Also the applicability of this \^evice for production quality control in metallurgy is shown.