• RUP "Belarussian metallurgical works"
• GNU Institute of metals technology of the National Academy of Sciences of RB
• NP RUP Institute BelNIIlit
• RUP Gomel foundry "Tsentrolit
• RUMP "Kuzlitmash"

The comparative analysis of deformability of the rolled wire from unkilled and finished steel grades at manufacture of metal production in conditions of RUP '"Rechitski hardware plant ” is carried out. The expediency of using rolled wire from unkilled steel 1 kp, 3 kp for wiredrawing and production of hardware is proved.

The experimental investigations of the structure and characteristics of the rolled wire cooled by air streams of different rates, imitating the conditions of the second stage of cooling of the modern high-speed rolled mills, are carried out. The results of investigations showed the necessity to increase the maximum possible rate of air stream at the second stage of cooling in comparison with the available at the many mills cooling rate.

There is studied the origin of increase of tendency to cracking of reinforcement bars at production at mill 320 of the Belarussian metallurgical works. On the ground of the carried out integrated study the technology of thermostrengthening of reinforcing steel, providing the required structural status of finished steel production, is developed and introduced.

The results of parametric identification of the mathematical model of fine elements heating by radiation in pusher furnaces of modern construction are given.

The mechanism of heating of ingots with liquid heart, providing the increase of productivity and decrease of discharge intensity of standard coal, is investigated on the basis of mathematical modelling of the processes of solidification, cooling and heating of coarse blooming ingots as a unified combined heat technological process.

There is given information on operation of the autogenous equipping for gas-oxygen cutting of continuous cast slugs, installed as a result of modernization of MNLZ- 3 RUP “BMZ‘'. The reliability and safety of operation of the offered construction of the machine for gas-oxygen cutting of slugs produced by ОA ‘'Effect‘' (Odessa) is proved.

The computer methods of calculation of speed distribution of melt elements in a gating system and cast are examined. There are offered energetic measures, based on speed character and its components, for estimation of melt flow in a gating system and choice of variants of metal supply to the mode.

There are offered the integral characteristics of the thermostressed state of detail, built on the thermoelasticity parameters (relative and shear deformations, direct and tangential stresses) and proportion of detail elments. Computer calculations of three-dimentional deformations and stresses of the detail «Bowl» with the transient spatial sizes are made on the basis of balance and thermal conduction equations.

The aim of the article is to attract attention of founders to the problem of the cast iron heredity taking into account the latest achievements in this field.

The aim of the article is to attract attention of founders to the problem of the cast iron heredity taking into account the latest achievements in this field.

Тhe problem refining of the used brake blocks of passenger cars is examined. There is shown possibility of production of high-test cast iron with a nodular graphite using charging materials with a high content of detrimental impurities. The influence of the melting conditions, modification of melt and chilling of casts on the structure and characteristics of the produced cast iron is studied.

The article shows the controllability of initial solidification temperature of AК7 (ALSi7Mg) alloy by the chemical compounds inserted into liquid alloy in mixture form giving exothermic effect. There are presented the results in graphical form of influence of mixture compounds on the studied temperature on w/w

Modification of liquid glass by acrylic derivative leads to the cohesion fortification and elasticity due to processing of r more fine structure of the hardening products.

It is informed about created in Scientific institute BelNIIlit technology of consolidation of agglutinant sand mixture by pneumatic stream and its investigation.

There is given the analysis of factors, influencing on appearance of compression stresses at formation by pneumatic stream.

The stresses, occurring in a wall of the bimetallic "aluminum-cast iron" cylinder of pneumatic compressor, are estimated. The formulas for determination of the wall thickness of cylinder cast iron inserts, equivalent stresses and load factor are derived.

In the article there is given analysis of the methods, used for technological diagnostics of foundry processes, and also given the effective algorithm of solution of the main problems of foundry technological processes diagnostics, realized computer-assisted.

The history of induction heat formation in the machine-^ building technology and experience of Minsk automobile plant in induction heat hardening of automobile details are examined in our magazine No 1,2002. In this article there is examined the experience of Minsk automobile plant on creation and application of equipment and technology of induction heat at hot plastic deformation and in foundry. The recommendations on designing of heating installations and choice of optimum heat conditions are given.

The article describes the special features of the structure and properties of cast low-alloy tungsten-free high-speed steel 11M5F in comparison with the properties of steel R6M5. There are also shown the structure and phase composition of cast carburized R6M5-based high-speed steel additionally alloyed with vanadium, titanium and niobium. There are discussed the results of microstructural analysis and mechanical tests of the cast high-speed steel in which tungsten is substituted by chromium.

In the article there is given the description of the realized at Gomel enterprise '^SANTEP'' project of 3 ton cupola with the system of low-energy gas cleaning. The offered system at a low production cost provides efficient cleaning of gas emissions from dust and detrimental impurities.