The main results of carying out of state program of applied scientific research «Metallurgy» both in the field of theoretical and practical developments are given.
Congratulation
Foundry
It is determined that application of nonstick coverings with additives of nanostructured materials in technological process of castings production will enable increase of the casting mold filling degree, reduction of under filling and seals waste.
The results of experimental and theoretical investigations of leaded tape forming at continuous casting in roll crystallizer with flanges are presented. The monogram for determination of optimum casting speed is built.
The carried out experimental and scientific-research works enabled to organize mass production of grinding bodies, which being successfully tested at the enterprises of building industry of the Republic of Belarus now.
The brief information about crucibleless furnaces of reflecting type of melting, storage and melt discharge is given. For the purpose of increase of their effectiveness the theoretical calculation on optimization of multilayer brickwork parameters is carried out as well as composition of lining material is chosen.
Analysis of existing methods of ferric oxide restoration is given.
The advantages of rotary furnaces, developed by specialists of GGTU named after P. O. Suhoj and UP «Tehnolit» for carrying out of ferric oxide recycling with regard to conditions of the Republic of Belarus, are described.
The carried out series of experiments confirmed the technical reasonability of enrichment of exhaust nickel catalysts with the purpose of their further usage as nickel concentrates for alloying of casting alloys.
The methods of processing of the electrolysis and etching productions waste are examined and appraisal of possibility of their mastering in the Republic of Belarus is given.
The methodology of rating of the galvanic final tailings applicability for further processing in the interests of needs of metallurgical production of the Republic Belarus is offered.
The problems of galvanic production waste recovery, conditions, influencing on the final tailings composition, influence of the chemical composition of final tailings on the ways of their recovery are examined.
Metallurgy
The methods of the industrial experiments carrying out at heating of metal in furnaces of modern construction at the example of furnaces of rolling production of RUP «BMZ» are worked out.
It is shown that at modeling of metal heating processes in furnaces it is reasonable to determine source data in parameters, measurable and controllable in the operating process of aggregate.
The peculiarities of the wires behavior at spin on machines of double torsion are examined. The main characteristics of machines of double torsion are given.
The influence of bainite structure on mechanical characteristics of wire of steel 80 after patenting is studied. The quantity and structure state of bainite, providing high complex of mechanical characteristics of high-carbon wire, is determined.
The mathematical model of multidimensional regression analysis is presented. Its practical application for rolling production is examined. The algorithm of special characteristics determination is developed.
It is shown that insulating boards of brand PROMAFORM 1260 have high fireproof and heat-insulating characteristics, have passed experimental and experimentalindustrial tests and are used commercially in steel-making plants of RUP «BMZ».
The results of research, directed at reduction of graphite oxidation and correspondingly of specific electrode consumption due to antioxidant covering are presented.
The main advantages of emission spectrometer CAP 6300 are shown. An example of its practical application in production quality control is shown.
Metallurgical reasons of metal breakage at wire drawing, connected with microstructure of rolled wire, are examined.
Economy
Optimization of production program and binding of expenses to the real situation is one of the ways to change the strategy of the enterprise development.
Energy-saving
The status of power engineering in the world and the main tendencies of its development are analyzed, the problems of energy saving in industrial complex of the Republic of Belarus, particularly in machine-building and metallurgical complex, are examined.
The results of numerical modeling of heating operation of furnace of the metal high-speed jet heating are given.
The results of numerical modeling of heating operation of furnace of the metal high-speed jet heating are given.
The problem of guarantee of gas-air correlation at the example of flame brazing furnace of forging production with several burners, operating on different capacities, is examined.
Science of materials
Kinetics of phase, structural conversions and change of characteristics depending on the temperature, heating and cooling speed, temperature of steel 60PP drawing is examined.
The perspectives of applications of cast high-speed steels for production of slugs of press-forging instrument are examined. The technological parameters, structures and characteristics of matrix and punches, produced of cast slugs of steel R6M5 are studied.
The indices of adhesion and friability of metal-containing tailings, their water absorbency and wettability and also abrasive characteristics of tailings with the purpose of prevention of contacting surfaces wear are studied.
The morphology of the system Ti-Al-Ni covering, received by means of self-distributing high-temperature synthesis, initiated by electron-beam heating, on the basis of steel St3 is investigated.
The methods, enabing to produce the comparative appraisal of the titanium alloy ability to harden as a result of high-temperature thermal-mechanical processing depending on temperature and rate of deformation at forging, is developed.
The article is dedicated to the actual problem of separation of bar stock into measuring slugs using the way of cross-wedge rolling. The influence of edge angle of blade disk and coefficient of contact friction on effort of bar separation is noted.
The main type of generators with extended frequency range from 20 to 80 kHz, which enables to replace electron-tube generators, is described. The advantages of such generators are nated, the main characteristics are given.
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ISSN 2414-0406 (Online)