INSTITUTE OF TECHNOLOGY OF METALS
  
 



LANGUAGE
  • Russian

  • INSTITUTE
  • Institute
  • Main directions of scientific research work
  • Structure
  • Contacts
  • Cooperation

  • DEVELOPMENTS OF THE INSTITUTE
  • Continuous casting
  • Freezing-up casting
  • Bimetals
  • Silumins
  • Simulation of casting processes
  • Water analog simulation of die casting
  • Electroslag casting

  • CORROSION
  • Development of diagnosis system of the metal surface damage
  • Development of prognosis system of the steel surface damage by the Light Section Profiling System (LSP system) in high-speed production process
  • Development of prognosis system of the steel bulk property claim by the magnetic detection method in continuous production process
  • Diagnosis system of quality control and process control by digital image analysis
  • Universal magnetic thickness gage
  • Development of anti-corrosive active polymer film for steel packing

  • COATINGS
  • Magnetic Impulse Hardening
  • Cladding
  • IMM (Induction Metallurgical Method) Surface Hardening
  • Thermal Spray Coating Process
  • Flame Spray
  • Detonation Flame Spraying
  • Nontransferred Plasma Arc Spraying
  • Electric Arc Spraying
  • Activated arc spray- Hypersonic metallization
  • High-Frequency Pulse Hardening of Surfaces
  • Wire Arc Coatings
  • Metallization Of Ferrites And Creation Of Fixed Compositions Ferrite-metal

  • TECHNOLOGIES AND EQUIPMENT
  • Equipment For Surface Metallization And Blazing Of Oxide Materials
  • for continuous casting of cast iron and nonferrous metals
  • for battery grid casting
  • for continuous casting of CuCl belt
  • Plant for continuous casting of copper, aluminum, gold, silver, solder wires
  • DEVEOPMENT OF THE INSTITUTE :: Magnetic Impulse Hardening

            The method is suggested for non-thermal effect on the structure in order to increase the mechanical properties of nonferrous metals.
            The technology has been used a pulsed magnetic field for increasing the complex of mechanical properties of non-ferrousmetals (specially copper alloys) as following:

    1. Effect of pulsed magnetic field as well as aging temperature increases plastic characteristics of structure.
    2. Increasing the number of cycles prior to failure during low-cycle fatigue tests.
    3. Decreasing the wear intensity during tribology tests


            Process

            The methods suggested are aimed at increasing the homogeneity of micro- and sub-structures using exposure to periodic thermal and magnetic pulses. Manufacturing Scheme (E is supplied magnetic energy)
            The energy supply under the pulse conditions allows:
    1. Refinement of grains and precipitated additional or hardening phases.
    2. Increase of microstructure homogeneity and elimination of coarse-grained structure areas.
    3. Simultaneous increase of strength and plastic properties of alloys.


            Equipment & Products

            Processing was carried out in cylindrical inductor on plant МИУ-20/2 (fig.). Energy of an impulse 1 … 10 kJ, quantity of impulses 1...10.
            The size of intensity of impulses of a magnetic field (single mode) and number of impulses varied at the fixed intensity (a frequency mode)


            The scheme of processing:
            1 - inductor;
            2 - the sample;
            3 - a separator;
            4 - the copper trunk;
            Rz - total ohmic resistance of an electric circuit.

            The technology of Pulse magnetic field treatment of rollers was tested on Minsk plant of roller-bearings.


            Microstructure of Bronze after heat treatment(а), heat treatment and pulsed magnetic field(б); х250.


            Structure of Ball bearing (a) and after pulsed magnetic treatment (b); x1500




            Pulse magnetic treatment of rollers.
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