ΠšΠ°Ρ„Π΅Π΄Ρ€Π° ΠΎΠ±Ρ€ΠΎΠ±ΠΊΠΈ ΠΌΠ΅Ρ‚Π°Π»Ρ–Π² тиском Ρ‚Π° спСцтСхнологій (Π΄ΠΎ 2022 Ρ€ΠΎΠΊΡƒ)

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  • Item type:Item,
    Mechanism of Formation of Plane Surfaces with an Electric Arc
    (Allerton Press, Inc., 2019) Bokov, V.; Sisa, O.; Mirzak, V.; Π‘ΠΎΠΊΠΎΠ², Π’. М.; Біса, О. Π€.; ΠœΡ–Ρ€Π·Π°ΠΊ, Π’. Π―.
    A new method is offered for high-performance dimensional treatment by an electric arc (DTEA) of two similar plane surfaces in the components of hard-for-treatment materials in a bipolar mode without the traditional application of an electrode, which in contrast to the method of DTEA, with the application of an electrode, provides the rise in the efficiency of treatment by 230 %. It is shown that while transfering from the unipolar DTEA of the hard alloy BK-15 by the graphite electrode-tool to the bipolar DTEA of two samples of the same alloy, there is a considerable increase of thermal energy of the cathode area due to the energy of the arc column, which can overrun the thermal energy of the anode area and invoke the inversion, that is, the change of the direction of prevailing electric erosion. This increase of the thermal energy of the cathode area of the arc explains the increase of productivity of the bipolar DTEA of the two samples of the hard alloy BK-15 in contrast to the unipolar one. Π—Π°ΠΏΡ€ΠΎΠΏΠΎΠ½ΠΎΠ²Π°Π½ΠΎ Π½ΠΎΠ²ΠΈΠΉ спосіб високопродуктивної Ρ€ΠΎΠ·ΠΌΡ–Ρ€Π½ΠΎΡ— ΠΎΠ±Ρ€ΠΎΠ±ΠΊΠΈ ΠΌΠ΅Ρ‚Π°Π»Ρ–Π² Π΅Π»Π΅ΠΊΡ‚Ρ€ΠΈΡ‡Π½ΠΎΡŽ Π΄ΡƒΠ³ΠΎΡŽ (Π ΠžΠ”) Π΄Π²ΠΎΡ… ΠΎΠ΄Π½Π°ΠΊΠΎΠ²ΠΈΡ… плоских ΠΏΠΎΠ²Π΅Ρ€Ρ…ΠΎΠ½ΡŒ Π² дСталях Π· Π²Π°ΠΆΠΊΠΎΠΎΠ±Ρ€ΠΎΠ±Π»ΡŽΠ²Π°Π½ΠΈΡ… ΠΌΠ°Ρ‚Π΅Ρ€Ρ–Π°Π»Ρ–Π² Π² біполярному Ρ€Π΅ΠΆΠΈΠΌΡ– Π±Π΅Π· Ρ‚Ρ€Π°Π΄ΠΈΡ†Ρ–ΠΉΠ½ΠΎΠ³ΠΎ застосування Π΅Π»Π΅ΠΊΡ‚Ρ€ΠΎΠ΄Π°-інструмСнта, який Π² порівнянні Π· способом Π ΠžΠ” Ρ–Π· застосуванням Π΅Π»Π΅ΠΊΡ‚Ρ€ΠΎΠ΄Π°-інструмСнта Π·Π°Π±Π΅Π·ΠΏΠ΅Ρ‡ΡƒΡ” підвищСння продуктивності ΠΎΠ±Ρ€ΠΎΠ±ΠΊΠΈ Π½Π° 230 %. Показано, Ρ‰ΠΎ ΠΏΡ€ΠΈ ΠΏΠ΅Ρ€Π΅Ρ…ΠΎΠ΄Ρ– Π²Ρ–Π΄ уніполярної Π ΠžΠ” Ρ‚Π²Π΅Ρ€Π΄ΠΎΠ³ΠΎ сплаву Π’Πš-15 Π³Ρ€Π°Ρ„Ρ–Ρ‚ΠΎΠ²ΠΈΠΌ Π΅Π»Π΅ΠΊΡ‚Ρ€ΠΎΠ΄ΠΎΠΌ-інструмСнтом Π΄ΠΎ біполярної Π ΠžΠ” Π΄Π²ΠΎΡ… Π·Ρ€Π°Π·ΠΊΡ–Π² Π· Ρ†ΡŒΠΎΠ³ΠΎ ΠΆ сплаву ΡΠΏΠΎΡΡ‚Π΅Ρ€Ρ–Π³Π°Ρ”Ρ‚ΡŒΡΡ істотнС Π·Π±Ρ–Π»ΡŒΡˆΠ΅Π½Π½Ρ Ρ‚Π΅ΠΏΠ»ΠΎΠ²ΠΎΡ— Π΅Π½Π΅Ρ€Π³Ρ–Ρ— ΠΊΠ°Ρ‚ΠΎΠ΄Π½ΠΎΠ³ΠΎ області Π·Π° Ρ€Π°Ρ…ΡƒΠ½ΠΎΠΊ Π΅Π½Π΅Ρ€Π³Ρ–Ρ— стовпа Π΄ΡƒΠ³ΠΈ, Ρ‰ΠΎ ΠΌΠΎΠΆΠ΅ ΠΏΠ΅Ρ€Π΅Π²ΠΈΡ‰ΠΈΡ‚ΠΈ Ρ‚Π΅ΠΏΠ»ΠΎΠ²Ρƒ Π΅Π½Π΅Ρ€Π³Ρ–ΡŽ Π°Π½ΠΎΠ΄Π½ΠΎΡ— області Ρ– Π²ΠΈΠΊΠ»ΠΈΠΊΠ°Ρ‚ΠΈ Ρ–Π½Π²Π΅Ρ€ΡΡ–ΡŽ, Ρ‚ΠΎΠ±Ρ‚ΠΎ Π·ΠΌΡ–Π½Π° напрямку ΠΏΠ΅Ρ€Π΅Π²Π°ΠΆΠ½ΠΎΡ— Π΅Π»Π΅ΠΊΡ‚Ρ€ΠΈΡ‡Π½ΠΎΡ— Π΅Ρ€ΠΎΠ·Ρ–Ρ—. Π’Π°ΠΊΠ΅ Π·Π±Ρ–Π»ΡŒΡˆΠ΅Π½Π½Ρ Ρ‚Π΅ΠΏΠ»ΠΎΠ²ΠΎΡ— Π΅Π½Π΅Ρ€Π³Ρ–Ρ— ΠΊΠ°Ρ‚ΠΎΠ΄Π½ΠΎΠ³ΠΎ області Π΄ΡƒΠ³ΠΈ ΠΏΠΎΡΡΠ½ΡŽΡ” Π·Π±Ρ–Π»ΡŒΡˆΠ΅Π½Π½Ρ продуктивності біполярної Π ΠžΠ” Π΄Π²ΠΎΡ… Π·Ρ€Π°Π·ΠΊΡ–Π² Π· Ρ‚Π²Π΅Ρ€Π΄ΠΎΠ³ΠΎ сплаву Π’Πš-15 Π² порівнянні Π· ΡƒΠ½Ρ–ΠΏΠΎΠ»ΡΡ€Π½ΠΎΡŽ.
  • Item type:Item,
    ИспользованиС элСктричСской Π΄ΡƒΠ³ΠΈ для получСния мСталличСских ΠΏΠΎΡ€ΠΎΡˆΠΊΠΎΠ²
    (2019) Π‘ΠΎΠΊΠΎΠ², Π’. М.; Биса, О. Π€.; Bokov, V.; Sisa, O.
    ΠŸΠΎΠ»ΡƒΡ‡Π΅Π½Ρ‹ ΠΈ исслСдованы ΠΏΠΎΡ€ΠΎΡˆΠΊΠΈ ΠΈΠ· Ρ‚ΠΈΡ‚Π°Π½ΠΎΠ²ΠΎΠ³ΠΎ сплава Π’Π’Π—-1 ΠΈ Ρ‚Π²Π΅Ρ€Π΄ΠΎΠ³ΠΎ сплава Π’Πš-15, прСдлагаСтся ΠΈΡ… ΠΏΡ€ΠΎΠΌΡ‹ΡˆΠ»Π΅Π½Π½ΠΎΠ΅ использованиС, Π° ΠΈΠΌΠ΅Π½Π½ΠΎ для повСрхностного напылСния. ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Ρ‹ Π²Ρ‹ΡΠΎΠΊΠΎΠΏΡ€ΠΎΠΈΠ·Π²ΠΎΠ΄ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹Π΅ способы ΠΈ устройства для получСния мСталличСских ΠΏΠΎΡ€ΠΎΡˆΠΊΠΎΠ² с использованиСм элСктричСской Π΄ΡƒΠ³ΠΈ Π² ΠΏΠΎΠΏΠ΅Ρ€Π΅Ρ‡Π½ΠΎΠΌ гидродинамичСском ΠΏΠΎΡ‚ΠΎΠΊΠ΅ Ρ€Π°Π±ΠΎΡ‡Π΅ΠΉ Тидкости, которая Π³ΠΎΡ€ΠΈΡ‚ Π±Π΅Π· ΠΏΠ°ΡƒΠ·, ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡŽΡ‰ΠΈΠ΅ ΠΏΠΎ ΡΡ€Π°Π²Π½Π΅Π½ΠΈΡŽ с элСктроэрозионным диспСргированиСм Π² насыпном слоС ΠΏΠΎΠ²Ρ‹ΡΠΈΡ‚ΡŒ ΠΏΡ€ΠΎΠΈΠ·Π²ΠΎΠ΄ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΡΡ‚ΡŒ диспСргирования Π½Π° порядок ΠΈ Π±ΠΎΠ»Π΅Π΅, Π° Ρ‚Π°ΠΊΠΆΠ΅ ΡΠ½ΠΈΠ·ΠΈΡ‚ΡŒ количСство ΠΊΠΎΠ½Ρ†Π΅Π²Ρ‹Ρ… тСхнологичСских ΠΎΡ‚Ρ…ΠΎΠ΄ΠΎΠ² (элСктродов) Π² 4-6 Ρ€Π°Π·. Modern methods of electro-erosive dispersion of electrically conductive materials that use non-stationary forms of electrical discharges in fluid have low productivity. That is associated with long pauses of discharges. The objective of this research is to raise the productivity of obtaining metal powders. From a methodological point of view, a metal powder was obtained during in the process of research using an electric arc in the transverse hydrodynamic flow of the working fluid as a product of dispersion of specially prepared work-pieces and as a waste item (electrodes erosion products) of implementing the method of electric-arc treatment of two flat surfaces in the bipolar mode. During the research work, powders from the BT3-1 titanium alloy and the BK-15 hard alloy were obtained and investigated. The proposal was put forward on a possibility of their industrial use, especially for surface spraying. The high-performance methods and appliances were suggested to obtain metal powders using an electric arc in the transverse hydrodynamic flow of the working fluid that burns without a pause. They make it possible to increase dispersion productivity in a fixed-bed layer by an order of magnitude and more as compared with the electro-erosive dispersion, as well as to reduce the number of terminal process waste (i.e. electrodes) by 4 to 6 times.