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Development of Tooling and Modes of Dispersion for Powders of Solder Aluminum Alloys

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It is known that the main factor specifying the dispersity of spraying of particles of metallic powders is the energy of blowing, which is, as a rule, controlled by the speed of supply of gaseous energy carrier to the jet of the melt. We study the modes of manufacturing and, on the basis of the results of computer simulation, develop special tooling for the procedure of dispersion of powders of solder aluminum alloys. We consider technical and technological schemes of getting powders from aluminum alloys intended for soldering the waveguides. The computer investigations of the influence of the geometry of structural elements of equipment on the parameters of dispersion of the AK12Ts10 melt are carried out by using the Solidworks Flow Simulation package for engineering analysis. In this case, it is assumed that the speed of the gas (argon) jet at a temperature of 20°С at the site of collision with the melt must be maximum for the identical other conditions (initial pressure, gas temperature, and temperature of the melt). We establish the dependences necessary and sufficient for the design of structural elements of the equipment and the creation of technological modes guaranteeing the realization of conditions of stability of the process of dispersion of the metal melt in getting powder of the required fraction (70 μm) in a laboratory installation. We present a description of the installation intended for the dispersion of AK12Ts10 melts with the help of which we prepared a pilot batch of a powder fraction 70 μm in size with a mass of 400 g. This batch was then delivered to the Reshetnev “Information Satellite Systems” Enterprise for industrial tests aimed at soldering aluminum waveguides. The tests of the paste in the course of soldering of elements of the waveguides under industrial conditions exhibited positive results.

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Authors and Affiliations

  1. Siberian Federal University, Krasnoyarsk, Russia

    I. V. Uskov, Yu. V. Gorokhov, I. Yu. Gubanov, M. I. Gubanova & E. M. Lesiv

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  1. I. V. Uskov
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  2. Yu. V. Gorokhov
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  3. I. Yu. Gubanov
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  4. M. I. Gubanova
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  5. E. M. Lesiv
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Correspondence to I. V. Uskov.

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Translated from Metallurg, Vol. 62, No. 6, pp. 96–99, May 2018.

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Uskov, I.V., Gorokhov, Y.V., Gubanov, I.Y. et al. Development of Tooling and Modes of Dispersion for Powders of Solder Aluminum Alloys. Metallurgist 62, 597–602 (2018). https://doi.org/10.1007/s11015-018-0697-8

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  • DOI: https://doi.org/10.1007/s11015-018-0697-8

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