10 research outputs found

    ΠžΡ€Π³Π°Π½Ρ–Ρ‡Π½Π΅ Π³Ρ€Π°Π½ΡƒΠ»ΡŒΠΎΠ²Π°Π½Π΅ комплСкснС Π±Ρ–ΠΎΠ΄ΠΎΠ±Ρ€ΠΈΠ²ΠΎ

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    ΠžΡ€Π³Π°Π½Ρ–Ρ‡Π½Π΅ Π³Ρ€Π°Π½ΡƒΠ»ΡŒΠΎΠ²Π°Π½Π΅ комплСкснС Π±Ρ–ΠΎΠ΄ΠΎΠ±Ρ€ΠΈΠ²ΠΎ, якС ΠΌΡ–ΡΡ‚ΠΈΡ‚ΡŒ біогумус, Ρ€Ρ–Π΄ΠΊΠ΅ ΠΎΡ€Π³Π°Π½Ρ–Ρ‡Π½Π΅ Π΄ΠΎΠ±Ρ€ΠΈΠ²ΠΎ Ρƒ вигляді післяспиртової ΡƒΠΏΠ°Ρ€Π΅Π½ΠΎΡ— мСлясної Π±Π°Ρ€Π΄ΠΈ Ρ‚Π° ΠΏΠΎΠ΄Ρ€Ρ–Π±Π½Π΅Π½Ρ– рослинні залишки. ΠŸΡ€ΠΈ Ρ†ΠΈΡ‚ΡƒΠ²Π°Π½Π½Ρ– Π΄ΠΎΠΊΡƒΠΌΠ΅Π½Ρ‚Π°, використовуйтС посилання http://essuir.sumdu.edu.ua/handle/123456789/1110

    Intermittent machining of hardened steels with different types of PcBN cutting tools

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    The paper discusses the results of the experimental investigation of the performance of several grades of PcBN cutting composites in conditions of the interrupted machining of hardened steel. Both BH and BL types of PcBN indexable inserts with additions of Si3N4, TiC, and TiCN were tested, and cutting speed varied to assess the possibility of applying these cutting tools in different conditions. It has been shown that BL PcBN can be utilized for turning with shock loads in case of high cutting speed and low depth of cut (0,2 mm). While in the range of comparatively low cutting speeds BL cutting tools are actually inoperable, and because of microchipping of polycrystalline fragments and brittle destruction of the cutting edge, an increase of the cutting speed to 210 m/min changes wear pattern and formation of the wear land. As well as this, measurement of the form and values of the cutting forces impulses revealed the effect of their peak growth by up to 40%. The danger of shock impulses was analyzed by FEM modeling, and it was demonstrated that during impacts, the maximal value of the third Principal stress exceeds the average level of compressive stresses during continuous cutting by 1.6 times, which can cause damage to the cutting tool. The data on the estimation of tool fracture probability depending on loading conditions are presented, and the possibility of reducing such probability is shown

    ΠžΠ±Π΅Ρ€Ρ‚ΠΎΠ²ΠΈΠΉ віброгранулятор Ρ€ΠΎΠ·ΠΏΠ»Π°Π²Ρ–Π²

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    Π’ΠΈΠ½Π°Ρ…Ρ–Π΄ Π½Π°Π»Π΅ΠΆΠΈΡ‚ΡŒ Π΄ΠΎ Ρ…Ρ–ΠΌΡ–Ρ‡Π½ΠΎΡ— промисловості, Π·ΠΎΠΊΡ€Π΅ΠΌΠ° Π΄ΠΎ Π²ΠΈΡ€ΠΎΠ±Π½ΠΈΡ†Ρ‚Π²Π° Π³Ρ€Π°Π½ΡƒΠ»ΡŒΠΎΠ²Π°Π½ΠΈΡ… Π°Π·ΠΎΡ‚Π½ΠΈΡ… Π΄ΠΎΠ±Ρ€ΠΈΠ². ΠžΠ±Π΅Ρ€Ρ‚ΠΎΠ²ΠΈΠΉ віброгранулятор Ρ€ΠΎΠ·ΠΏΠ»Π°Π²Ρ–Π² ΠΌΡ–ΡΡ‚ΠΈΡ‚ΡŒ корпус Π· ΠΏΠ°Ρ‚Ρ€ΡƒΠ±ΠΊΠΎΠΌ для ΠΏΠΎΠ΄Π°Ρ‡Ρ– Ρ€ΠΎΠ·ΠΏΠ»Π°Π²Ρƒ, ΠΊΡ–Π»ΡŒΡ†Π΅Π²ΠΈΠΉ ΠΊΠΎΠ»Π΅ΠΊΡ‚ΠΎΡ€ Π· ΠΊΡ–Π»ΡŒΡ†Π΅Π²ΠΈΠΌ ΠΊΠ°Π½Π°Π»ΠΎΠΌ, Π·Π²ΠΎΡ€ΠΎΡ‚Π½ΠΈΠΉ конус, ΠΏΠ°Ρ‚Ρ€ΡƒΠ±ΠΎΠΊ Ρ‚Π°Π½Π³Π΅Π½Ρ†Ρ–Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ Π²Π²ΠΎΠ΄Ρƒ Ρ€ΠΎΠ·ΠΏΠ»Π°Π²Ρƒ Π² ΠΊΡ–Π»ΡŒΡ†Π΅Π²ΠΈΠΉ ΠΊΠΎΠ»Π΅ΠΊΡ‚ΠΎΡ€, Ρ€ΠΎΠ·ΠΏΠΎΠ΄Ρ–Π»ΡŒΠ½ΠΈΠΊ, Ρ†ΠΈΠ»Ρ–Π½Π΄Ρ€ΠΈΡ‡Π½Ρƒ ΠΊΠ°ΠΌΠ΅Ρ€Ρƒ Π· півсфСричним ΠΏΠ΅Ρ€Ρ„ΠΎΡ€ΠΎΠ²Π°Π½ΠΈΠΌ Π΄Π½ΠΈΡ‰Π΅ΠΌ, Π² якому Ρ€ΠΎΠ·Ρ‚Π°ΡˆΠΎΠ²Π°Π½Ρ– Π½Π°ΠΏΡ–Ρ€Π½Ρ– Π»ΠΎΠΏΠ°Ρ‚ΠΊΠΈ, ΠΏΡ€ΠΈΡ‡ΠΎΠΌΡƒ Ρ†ΠΈΠ»Ρ–Π½Π΄Ρ€ΠΈΡ‡Π½Π° ΠΊΠ°ΠΌΠ΅Ρ€Π° Π· півсфСричним ΠΏΠ΅Ρ€Ρ„ΠΎΡ€ΠΎΠ²Π°Π½ΠΈΠΌ Π΄Π½ΠΈΡ‰Π΅ΠΌ, Π½Π°ΠΏΡ–Ρ€Π½ΠΈΠΌΠΈ Π»ΠΎΠΏΠ°Ρ‚ΠΊΠ°ΠΌΠΈ Ρ‚Π° Ρ€ΠΎΠ·ΠΏΠΎΠ΄Ρ–Π»ΡŒΠ½ΠΈΠΊΠΎΠΌ Π·ΠΌΠΎΠ½Ρ‚ΠΎΠ²Π°Π½Ρ– Π· ΠΌΠΎΠΆΠ»ΠΈΠ²Ρ–ΡΡ‚ΡŽ обСртання Π²Ρ–Π΄ ΠΏΡ€ΠΈΠ²ΠΎΠ΄Ρƒ, який встановлСний Π² ΠΏΡ–Π΄ΡˆΠΈΠΏΠ½ΠΈΠΊΠΎΠ²ΠΎΠΌΡƒ Π²ΡƒΠ·Π»Ρ– Π½Π° пороТнистому Π²Π°Π»Ρƒ, Π΄ΠΆΠ΅Ρ€Π΅Π»ΠΎ Π²Ρ–Π±Ρ€Π°Ρ†Ρ–ΠΉ для дроблСння струмСнів Ρ€ΠΎΠ·ΠΏΠ»Π°Π²Ρƒ Π½Π° ΠΊΡ€Π°ΠΏΠ»Ρ–, Ρ‰ΠΎ Π²ΠΊΠ»ΡŽΡ‡Π°Ρ” Π²Ρ–Π±Ρ€Π°Ρ‚ΠΎΡ€ Ρ‚Π° ΡˆΡ‚ΠΎΠΊ Ρ–Π· диском-Π²ΠΈΠΏΡ€ΠΎΠΌΡ–Π½ΡŽΠ²Π°Ρ‡Π΅ΠΌ Π½Π° ΠΊΡ–Π½Ρ†Ρ–, ΠΏΡ€ΠΈ Ρ†ΡŒΠΎΠΌΡƒ ΠΏΠ°Ρ‚Ρ€ΡƒΠ±ΠΎΠΊ Ρ‚Π°Π½Π³Π΅Π½Ρ†Ρ–Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ Π²Π²ΠΎΠ΄Ρƒ Ρ€ΠΎΠ·ΠΏΠ»Π°Π²Ρƒ Π² ΠΊΠΎΠ»Π΅ΠΊΡ‚ΠΎΡ€ Ρ€ΠΎΠ·Ρ‚Π°ΡˆΠΎΠ²Π°Π½ΠΈΠΉ усСрСдині ΠΊΠΎΠ»Π΅ΠΊΡ‚ΠΎΡ€Π°, ΠΏΡ€ΠΈΡ‡ΠΎΠΌΡƒ Π²Π΅Ρ€Ρ…Π½Ρ–ΠΉ ΠΊΡ–Π½Π΅Ρ†ΡŒ Π²ΠΊΠ°Π·Π°Π½ΠΎΠ³ΠΎ ΠΏΠ°Ρ‚Ρ€ΡƒΠ±ΠΊΠ° Торстко Π·Π°ΠΊΡ€Ρ–ΠΏΠ»Π΅Π½ΠΈΠΉ Π΄ΠΎ ΠΏΠ°Ρ‚Ρ€ΡƒΠ±ΠΊΠ° для ΠΏΠΎΠ΄Π°Ρ‡Ρ– Ρ€ΠΎΠ·ΠΏΠ»Π°Π²Ρƒ, Π° Π½ΠΈΠΆΠ½Ρ–ΠΉ ΠΉΠΎΠ³ΠΎ ΠΊΡ–Π½Π΅Ρ†ΡŒ Ρ€ΠΎΠ·Ρ‚Π°ΡˆΠΎΠ²Π°Π½ΠΈΠΉ Π½Π° відстані Π²Ρ–Π΄ стінки ΠΊΠΎΠ»Π΅ΠΊΡ‚ΠΎΡ€Π° Ρ‚Π° ΠΏΡ–Π΄ ΠΊΡƒΡ‚ΠΎΠΌ 15-20Β° Ρƒ напрямку обСртання Ρ†ΠΈΠ»Ρ–Π½Π΄Ρ€ΠΈΡ‡Π½ΠΎΡ— ΠΊΠ°ΠΌΠ΅Ρ€ΠΈ, Π° Π΄Π½ΠΈΡ‰Π΅ Π²ΠΈΠΊΠΎΠ½Π°Π½Π΅ Π· Ρ€Ρ–Π²Π½ΠΎΡŽ ΠΊΡ€ΡƒΠ³ΠΎΠ²ΠΎΡŽ Π½Π΅ΠΏΠ΅Ρ€Ρ„ΠΎΡ€ΠΎΠ²Π°Π½ΠΎΡŽ ΠΏΠΎΠ²Π΅Ρ€Ρ…Π½Π΅ΡŽ Π² Ρ†Π΅Π½Ρ‚Ρ€Ρ–, ΠΊΡ€Ρ–ΠΌ Ρ‚ΠΎΠ³ΠΎ Π½Π°Π΄ Ρ€ΠΎΠ·ΠΏΠΎΠ΄Ρ–Π»ΡŒΠ½ΠΈΠΊΠΎΠΌ встановлСний ΠΏΠΎΠΏΠ»Π°Π²ΠΎΠΊ, який Π²ΠΈΠΊΠΎΠ½Π°Π½ΠΈΠΉ Ρ–Π· Π΄Π²ΠΎΡ… частин - Π²Π½ΡƒΡ‚Ρ€Ρ–ΡˆΠ½ΡŒΠΎΡ—, Ρƒ вигляді Π·Π°ΠΌΠΊΠ½Π΅Π½ΠΎΡ— ємності, Π² якій Π·Π½Π°Ρ…ΠΎΠ΄ΠΈΡ‚ΡŒΡΡ повітря, Ρ– Π·ΠΎΠ²Π½Ρ–ΡˆΠ½ΡŒΠΎΡ— - Π³ΠΎΡ€ΠΈΠ·ΠΎΠ½Ρ‚Π°Π»ΡŒΠ½ΠΎΡ—, Π² якій Π²ΠΈΠΊΠΎΠ½Π°Π½Ρ– ΠΎΡ‚Π²ΠΎΡ€ΠΈ для проходТСння Π³Π°Π·Ρƒ, який Π·Π½Π°Ρ…ΠΎΠ΄ΠΈΡ‚ΡŒΡΡ Ρƒ Π±ΡƒΠ»ΡŒΠ±Π°ΡˆΠΊΠ°Ρ… ΠΏΡ–Π½ΠΈ, Ρ‚Π° Π³ΠΎΠ»ΠΊΠΈ для знищСння. Π’Π΅Ρ…Π½Ρ–Ρ‡Π½ΠΈΠΉ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚: Π·Π°Π±Π΅Π·ΠΏΠ΅Ρ‡ΡƒΡ”Ρ‚ΡŒΡΡ підвищСння ступСня очищСння. ΠŸΡ€ΠΈ Ρ†ΠΈΡ‚ΡƒΠ²Π°Π½Π½Ρ– Π΄ΠΎΠΊΡƒΠΌΠ΅Π½Ρ‚Π°, використовуйтС посилання http://essuir.sumdu.edu.ua/handle/123456789/10037Π˜Π·ΠΎΠ±Ρ€Π΅Ρ‚Π΅Π½ΠΈΠ΅ относится ΠΊ химичСской ΠΏΡ€ΠΎΠΌΡ‹ΡˆΠ»Π΅Π½Π½ΠΎΡΡ‚ΠΈ, Π² частности, ΠΊ производству Π³Ρ€Π°Π½ΡƒΠ»ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Ρ… Π°Π·ΠΎΡ‚Π½Ρ‹Ρ… ΡƒΠ΄ΠΎΠ±Ρ€Π΅Π½ΠΈΠΉ. Π’Ρ€Π°Ρ‰Π°ΡŽΡ‰ΠΈΠΉΡΡ виброгранулятор расплавов содСрТит корпус с ΠΏΠ°Ρ‚Ρ€ΡƒΠ±ΠΊΠΎΠΌ для ΠΏΠΎΠ΄Π°Ρ‡ΠΈ расплава, ΠΊΠΎΠ»ΡŒΡ†Π΅Π²ΠΎΠΉ ΠΊΠΎΠ»Π»Π΅ΠΊΡ‚ΠΎΡ€ с ΠΊΠΎΠ»ΡŒΡ†Π΅Π²Ρ‹ΠΌ ΠΊΠ°Π½Π°Π»ΠΎΠΌ, ΠΎΠ±Ρ€Π°Ρ‚Π½Ρ‹ΠΉ конус, ΠΏΠ°Ρ‚Ρ€ΡƒΠ±ΠΎΠΊ Ρ‚Π°Π½Π³Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½ΠΎΠ³ΠΎ Π²Π²ΠΎΠ΄Π° расплава Π² ΠΊΠΎΠ»ΡŒΡ†Π΅Π²ΠΎΠΉ ΠΊΠΎΠ»Π»Π΅ΠΊΡ‚ΠΎΡ€, Ρ€Π°ΡΠΏΡ€Π΅Π΄Π΅Π»ΠΈΡ‚Π΅Π»ΡŒ, Ρ†ΠΈΠ»ΠΈΠ½Π΄Ρ€ΠΈΡ‡Π΅ΡΠΊΡƒΡŽ ΠΊΠ°ΠΌΠ΅Ρ€Ρƒ с полусфСричСским ΠΏΠ΅Ρ€Ρ„ΠΎΡ€ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹ΠΌ Π΄Π½ΠΈΡ‰Π΅ΠΌ, Π² ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠΌ располоТСны Π½Π°ΠΏΠΎΡ€Π½Ρ‹Π΅ Π»ΠΎΠΏΠ°Ρ‚ΠΊΠΈ, ΠΏΡ€ΠΈΡ‡Π΅ΠΌ цилиндричСская ΠΊΠ°ΠΌΠ΅Ρ€Π° с полусфСричСским ΠΏΠ΅Ρ€Ρ„ΠΎΡ€ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹ΠΌ Π΄Π½ΠΈΡ‰Π΅ΠΌ, Π½Π°ΠΏΠΎΡ€Π½Ρ‹ΠΌΠΈ Π»ΠΎΠΏΠ°Ρ‚ΠΊΠ°ΠΌΠΈ ΠΈ распрСдСлитСлСм смонтированы с Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡ‚ΡŒΡŽ вращСния ΠΎΡ‚ ΠΏΡ€ΠΈΠ²ΠΎΠ΄Π°, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΉ установлСн Π² подшипниковом ΡƒΠ·Π»Π΅ Π½Π° ΠΏΠΎΠ»ΠΎΠΌ Π²Π°Π»Ρƒ, источник Π²ΠΈΠ±Ρ€Π°Ρ†ΠΈΠΉ для дроблСния струй расплава Π½Π° ΠΊΠ°ΠΏΠ»ΠΈ, Π²ΠΊΠ»ΡŽΡ‡Π°ΡŽΡ‰ΠΈΠΉ Π²ΠΈΠ±Ρ€Π°Ρ‚ΠΎΡ€ ΠΈ ΡˆΡ‚ΠΎΠΊ с диском-ΠΈΠ·Π»ΡƒΡ‡Π°Ρ‚Π΅Π»Π΅ΠΌ Π½Π° ΠΊΠΎΠ½Ρ†Π΅, ΠΏΡ€ΠΈ этом ΠΏΠ°Ρ‚Ρ€ΡƒΠ±ΠΎΠΊ Ρ‚Π°Π½Π³Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½ΠΎΠ³ΠΎ Π²Π²ΠΎΠ΄Π° расплава Π² ΠΊΠΎΠ»Π»Π΅ΠΊΡ‚ΠΎΡ€ располоТСн Π²Π½ΡƒΡ‚Ρ€ΠΈ ΠΊΠΎΠ»Π»Π΅ΠΊΡ‚ΠΎΡ€Π°, ΠΏΡ€ΠΈΡ‡Π΅ΠΌ Π²Π΅Ρ€Ρ…Π½ΠΈΠΉ ΠΊΠΎΠ½Π΅Ρ† ΡƒΠΊΠ°Π·Π°Π½Π½ΠΎΠ³ΠΎ ΠΏΠ°Ρ‚Ρ€ΡƒΠ±ΠΊΠ° ТСстко ΠΏΡ€ΠΈΠΊΡ€Π΅ΠΏΠ»Π΅Π½ ΠΊ ΠΏΠ°Ρ‚Ρ€ΡƒΠ±ΠΊΡƒ для ΠΏΠΎΠ΄Π°Ρ‡ΠΈ расплава, Π° Π½ΠΈΠΆΠ½ΠΈΠΉ Π΅Π³ΠΎ ΠΊΠΎΠ½Π΅Ρ† располоТСн Π½Π° расстоянии ΠΎΡ‚ стСнки ΠΊΠΎΠ»Π»Π΅ΠΊΡ‚ΠΎΡ€Π° ΠΈ ΠΏΠΎΠ΄ ΡƒΠ³Π»ΠΎΠΌ 15-20Β° Π² Π½Π°ΠΏΡ€Π°Π²Π»Π΅Π½ΠΈΠΈ вращСния цилиндричСской ΠΊΠ°ΠΌΠ΅Ρ€Ρ‹, Π° Π΄Π½ΠΈΡ‰Π΅ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ с Ρ€ΠΎΠ²Π½ΠΎΠΉ ΠΊΡ€ΡƒΠ³ΠΎΠ²ΠΎΠΉ Π½Π΅ΠΏΠ΅Ρ€Ρ„ΠΎΡ€ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠΉ ΠΏΠΎΠ²Π΅Ρ€Ρ…Π½ΠΎΡΡ‚ΡŒΡŽ Π² Ρ†Π΅Π½Ρ‚Ρ€Π΅, ΠΊΡ€ΠΎΠΌΠ΅ Ρ‚ΠΎΠ³ΠΎ Π½Π°Π΄ распрСдСлитСлСм установлСн ΠΏΠΎΠΏΠ»Π°Π²ΠΎΠΊ, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΉ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ ΠΈΠ· Π΄Π²ΡƒΡ… частСй - Π²Π½ΡƒΡ‚Ρ€Π΅Π½Π½Π΅ΠΉ, Π² Π²ΠΈΠ΄Π΅ Π·Π°ΠΌΠΊΠ½ΡƒΡ‚ΠΎΠΉ Смкости, Π² ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠΉ находится Π²ΠΎΠ·Π΄ΡƒΡ…, ΠΈ внСшнСй - Π³ΠΎΡ€ΠΈΠ·ΠΎΠ½Ρ‚Π°Π»ΡŒΠ½ΠΎΠΉ, Π² ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠΉ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½Ρ‹ отвСрстия для прохоТдСния Π³Π°Π·Π°, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΉ находится Π² ΠΏΡƒΠ·Ρ‹Ρ€ΡŒΠΊΠ°Ρ… ΠΏΠ΅Π½Ρ‹, ΠΈ ΠΈΠ³Π»Ρ‹ для уничтоТСния. ВСхничСский Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚: обСспСчиваСтся ΠΏΠΎΠ²Ρ‹ΡˆΠ΅Π½ΠΈΠ΅ стСпСни очистки. ΠŸΡ€ΠΈ Ρ†ΠΈΡ‚ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠΈ Π΄ΠΎΠΊΡƒΠΌΠ΅Π½Ρ‚Π°, ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠΉΡ‚Π΅ ссылку http://essuir.sumdu.edu.ua/handle/123456789/1003

    ΠžΠ±Π΅Ρ€Ρ‚ΠΎΠ²ΠΈΠΉ віброгранулятор Ρ€ΠΎΠ·ΠΏΠ»Π°Π²Ρ–Π²

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    Π’ΠΈΠ½Π°Ρ…Ρ–Π΄ Π½Π°Π»Π΅ΠΆΠΈΡ‚ΡŒ Π΄ΠΎ Ρ…Ρ–ΠΌΡ–Ρ‡Π½ΠΎΡ— промисловості, Π·ΠΎΠΊΡ€Π΅ΠΌΠ° Π΄ΠΎ Π²ΠΈΡ€ΠΎΠ±Π½ΠΈΡ†Ρ‚Π²Π° Π³Ρ€Π°Π½ΡƒΠ»ΡŒΠΎΠ²Π°Π½ΠΈΡ… Π°Π·ΠΎΡ‚Π½ΠΈΡ… Π΄ΠΎΠ±Ρ€ΠΈΠ². ΠžΠ±Π΅Ρ€Ρ‚ΠΎΠ²ΠΈΠΉ віброгранулятор Ρ€ΠΎΠ·ΠΏΠ»Π°Π²Ρ–Π² ΠΌΡ–ΡΡ‚ΠΈΡ‚ΡŒ корпус Π· ΠΏΠ°Ρ‚Ρ€ΡƒΠ±ΠΊΠΎΠΌ для ΠΏΠΎΠ΄Π°Ρ‡Ρ– Ρ€ΠΎΠ·ΠΏΠ»Π°Π²Ρƒ, ΠΊΡ–Π»ΡŒΡ†Π΅Π²ΠΈΠΉ ΠΊΠΎΠ»Π΅ΠΊΡ‚ΠΎΡ€ Π· ΠΊΡ–Π»ΡŒΡ†Π΅Π²ΠΈΠΌ ΠΊΠ°Π½Π°Π»ΠΎΠΌ, Ρ€ΠΎΠ·ΠΏΠΎΠ΄Ρ–Π»ΡŒΠ½ΠΈΠΊ Ρ€ΠΎΠ·ΠΏΠ»Π°Π²Ρƒ Π· Π½Π°ΠΏΡ–Ρ€Π½ΠΈΠΌΠΈ лопатями, Ρ†ΠΈΠ»Ρ–Π½Π΄Ρ€ΠΈΡ‡Π½Ρƒ ΠΊΠ°ΠΌΠ΅Ρ€Ρƒ Π· ΠΏΠ΅Ρ€Ρ„ΠΎΡ€ΠΎΠ²Π°Π½ΠΈΠΌ Π΄Π½ΠΈΡ‰Π΅ΠΌ Ρ–Π· лопатями, Ρ‰ΠΎ ΠΌΠ°Ρ” ΠΎΡ‚Π²ΠΎΡ€ΠΈ для витікання Ρ€ΠΎΠ·ΠΏΠ»Π°Π²Ρƒ, Ρ€ΠΎΠ·Ρ‚Π°ΡˆΠΎΠ²Π°Π½Ρ– Π½Π° Ρ€Ρ–Π·Π½Ρ–ΠΉ висоті Ρ– Π½Π° Ρ€Ρ–Π·Π½ΠΈΡ… відстанях Π²Ρ–Π΄ осі обСртання Π΄Π½ΠΈΡ‰Π°, Ρ‚Π°ΠΊ, Ρ‰ΠΎ осі ΠΎΡ‚Π²ΠΎΡ€Ρ–Π² витікання спрямовані Π² Ρ€Ρ–Π·Π½Ρ– Π±ΠΎΠΊΠΈ ΠΏΡ–Π΄ Ρ€Ρ–Π·Π½ΠΈΠΌΠΈ ΠΊΡƒΡ‚Π°ΠΌΠΈ Π΄ΠΎ ΠΎΠ±Ρ€Ρ–ΡŽ, які Π·ΠΌΠΎΠ½Ρ‚ΠΎΠ²Π°Π½Ρ– Π· ΠΌΠΎΠΆΠ»ΠΈΠ²Ρ–ΡΡ‚ΡŽ обСртання Π²Ρ–Π΄ ΠΏΡ€ΠΈΠ²ΠΎΠ΄Ρƒ, Π·ΠΌΠΎΠ½Ρ‚ΠΎΠ²Π°Π½ΠΎΠ³ΠΎ Π½Π° пороТнистому Π²Π°Π»Ρƒ, встановлСному Π² ΠΏΡ–Π΄ΡˆΠΈΠΏΠ½ΠΈΠΊΠΎΠ²ΠΎΠΌΡƒ Π²ΡƒΠ·Π»Ρ–, Π΄ΠΆΠ΅Ρ€Π΅Π»ΠΎ Π²Ρ–Π±Ρ€Π°Ρ†Ρ–ΠΉ для дроблСння струмСнів Ρ€ΠΎΠ·ΠΏΠ»Π°Π²Ρƒ Π½Π° ΠΊΡ€Π°ΠΏΠ»Ρ–, Ρ‰ΠΎ Π²ΠΊΠ»ΡŽΡ‡Π°Ρ” Π²Ρ–Π±Ρ€Π°Ρ‚ΠΎΡ€ Ρ– ΡˆΡ‚ΠΎΠΊ Ρ–Π· диском-Π²ΠΈΠΏΡ€ΠΎΠΌΡ–Π½ΡŽΠ²Π°Ρ‡Π΅ΠΌ Π½Π° ΠΊΡ–Π½Ρ†Ρ–, ΠΏΡ€ΠΈΡ‡ΠΎΠΌΡƒ ΠΊΡ–Π»ΡŒΡ†Π΅Π²ΠΈΠΉ ΠΊΠΎΠ»Π΅ΠΊΡ‚ΠΎΡ€ Π²ΠΈΠΊΠΎΠ½Π°Π½ΠΈΠΉ Π· Ρ‚Π°Π½Π³Π΅Π½Ρ†Ρ–Π°Π»ΡŒΠ½ΠΈΠΌ ΠΏΠ°Ρ‚Ρ€ΡƒΠ±ΠΊΠΎΠΌ для ΠΏΠΎΠ΄Π°Ρ‡Ρ– Ρ€ΠΎΠ·ΠΏΠ»Π°Π²Ρƒ Π² ΠΊΠΎΠ»Π΅ΠΊΡ‚ΠΎΡ€, Π° Π΄ΠΎ ΠΊΡ–Π»ΡŒΡ†Π΅Π²ΠΎΠ³ΠΎ ΠΊΠΎΠ»Π΅ΠΊΡ‚ΠΎΡ€Π° Торстко Π·Π°ΠΊΡ€Ρ–ΠΏΠ»Π΅Π½ΠΈΠΉ Π·Π²ΠΎΡ€ΠΎΡ‚Π½ΠΈΠΉ конус, Ρ‰ΠΎ Π·'Ρ”Π΄Π½Π°Π½ΠΈΠΉ Π· ΠΊΡ–Π»ΡŒΡ†Π΅Π²ΠΈΠΌ ΠΊΠ°Π½Π°Π»ΠΎΠΌ, ΠΏΡ€ΠΈΡ‡ΠΎΠΌΡƒ ΠΏΠ΅Ρ€Ρ„ΠΎΡ€ΠΎΠ²Π°Π½Π΅ Π΄Π½ΠΈΡ‰Π΅ Π²ΠΈΠΊΠΎΠ½Π°Π½Π΅ Ρƒ Ρ„ΠΎΡ€ΠΌΡ– ΠΏΡ–Π²ΠΊΡƒΠ»Ρ–, Π° Π»ΠΎΠΏΠ°Ρ‚Ρ–, які Π·ΠΌΠΎΠ½Ρ‚ΠΎΠ²Π°Π½Ρ– Ρƒ ΠΏΠ΅Ρ€Ρ„ΠΎΡ€ΠΎΠ²Π°Π½ΠΎΠΌΡƒ Π΄Π½ΠΈΡ‰Ρ–, Ρ€ΠΎΠ·Ρ‚Π°ΡˆΠΎΠ²Π°Π½Ρ– Π· Π·Π°Π·ΠΎΡ€ΠΎΠΌ 2-6 ΠΌΠΌ Π²Ρ–Π΄ ΠΉΠΎΠ³ΠΎ Π²Π½ΡƒΡ‚Ρ€Ρ–ΡˆΠ½ΡŒΠΎΡ— ΠΏΠΎΠ²Π΅Ρ€Ρ…Π½Ρ– Ρ‚Π° установлСні ΠΏΡ–Π΄ ΠΊΡƒΡ‚ΠΎΠΌ 10-12Β° Π²Ρ–Π΄ осі обСртання, ΠΊΡ€Ρ–ΠΌ Ρ‚ΠΎΠ³ΠΎ, Π·ΠΎΠ²Π½Ρ–ΡˆΠ½Ρ–ΠΉ ΠΊΡ€Π°ΠΉ Π»ΠΎΠΏΠ°Ρ‚Π΅ΠΉ ΠΏΠΎΠ²Ρ‚ΠΎΡ€ΡŽΡ” Ρ„ΠΎΡ€ΠΌΡƒ ΠΏΠ΅Ρ€Ρ„ΠΎΡ€ΠΎΠ²Π°Π½ΠΎΠ³ΠΎ Π΄Π½ΠΈΡ‰Π°. Π’Π΅Ρ…Π½Ρ–Ρ‡Π½ΠΈΠΉ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚: інтСнсифікація процСсу охолодТСння Π³Ρ€Π°Π½ΡƒΠ», Ρ‰ΠΎ ΠΏΡ–Π΄Π²ΠΈΡ‰ΠΈΡ‚ΡŒ ΡΠΊΡ–ΡΡ‚ΡŒ Π΄ΠΎΠ±Ρ€ΠΈΠ²Π°. ΠŸΡ€ΠΈ Ρ†ΠΈΡ‚ΡƒΠ²Π°Π½Π½Ρ– Π΄ΠΎΠΊΡƒΠΌΠ΅Π½Ρ‚Π°, використовуйтС посилання http://essuir.sumdu.edu.ua/handle/123456789/10058The invention relates to chemical industry, in particular to the production of granulated nitric fertilizers. A rotary vibrogranulator of melts contains a housing with branch pipe for supplying the melt, an annular collector with annular channel, a distributor of melt with pressure blades, a cylindrical chamber with perforated bottom with blades, which has openings for discharge of melt, located at different height and at different distances from the rotational axis of the bottom, thus, that the axes of openings of discharge are directed toward different sides at different angles to the horizon, which are installed with possibility of rotation from a drive installed on a hollow shaft mounted in a bearing unit, a source of vibrations for jet disintegration of the melt into drops, which includes a vibrator and a stock with disk-emitter at the end; moreover the annular collector is made with tangential branch pipe for supplying the melt into the collector, and to the annular collector a reverse cone is rigidly fastened, which is connected with the annular channel; moreover the perforated bottom is made in the form of a hemisphere, and the blades, which are installed in the perforated bottom, are located with a clearance of 2-6 mm from its internal surface and are installed at the angle of 10-12Β° from the rotational axis, furthermore, the external edge of blades follows the shape of perforated bottom. Technical result: intensification of the process of cooling granules, which will increase quality of fertilizer ΠŸΡ€ΠΈ Ρ†ΠΈΡ‚ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠΈ Π΄ΠΎΠΊΡƒΠΌΠ΅Π½Ρ‚Π°, ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠΉΡ‚Π΅ ссылку http://essuir.sumdu.edu.ua/handle/123456789/1005

    ΠžΡ†Π΅Π½ΠΊΠ° экономичСской эффСктивности использования ΠΌΠΎΠ΄Π΅Ρ€Π½ΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ грануляционного оборудования ΠΏΡ€ΠΈ производствС Π°Π·ΠΎΡ‚Π½Ρ‹Ρ… ΡƒΠ΄ΠΎΠ±Ρ€Π΅Π½ΠΈΠΉ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ приллирования

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    РассмотрСны вопросы Π°ΠΏΠΏΠ°Ρ€Π°Ρ‚ΡƒΡ€Π½ΠΎΠ³ΠΎ оформлСния ΠΈ Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ процСсса гранулирования Π°Π·ΠΎΡ‚Π½Ρ‹Ρ… ΡƒΠ΄ΠΎΠ±Ρ€Π΅Π½ΠΈΠΉ ΠΈΠ· расплава с Π΄ΠΎΠ±Π°Π²ΠΊΠ°ΠΌΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ приллирования Π½Π° Π²Ρ€Π°Ρ‰Π°ΡŽΡ‰ΠΈΡ…ΡΡ Π²ΠΈΠ±Ρ€Π°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… грануляторах. ΠŸΡ€Π°ΠΊΡ‚ΠΈΡ‡Π΅ΡΠΊΠΈΠΉ интСрСс ΠΏΡ€Π΅Π΄ΡΡ‚Π°Π²Π»ΡΡŽΡ‚ Ρ€Π°Π±ΠΎΡ‡ΠΈΠ΅ ΠΎΡ€Π³Π°Π½Ρ‹ гранулятора, Π·Π° счСт ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Ρ… ΡΡ‚Π°Π±ΠΈΠ»ΠΈΠ·ΠΈΡ€ΡƒΡŽΡ‚ΡΡ Π΄Π²ΠΈΠΆΠ΅Π½ΠΈΠ΅ ΠΏΠ»Π°Π²Π° ΠΈ Π΅Π³ΠΎ диспСргация, ΡƒΠΌΠ΅Π½ΡŒΡˆΠ°Π΅Ρ‚ΡΡ ΠΏΠ΅Π½ΠΎ- ΠΈ ΠΏΡ‹Π»Π΅ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΏΡ€ΠΈ производствС ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ†ΠΈΠΈ. ΠŸΡ€ΠΈ Ρ†ΠΈΡ‚ΡƒΠ²Π°Π½Π½Ρ– Π΄ΠΎΠΊΡƒΠΌΠ΅Π½Ρ‚Π°, використовуйтС посилання http://essuir.sumdu.edu.ua/handle/123456789/27823This publication offers an overview on issues of hardware design and technology of the process of nitric fertilizers granulation from the melt with additives by prilling on rotation vibratory granulators. Practical interest lies in operating elements of the granulator by means of which the motion of the melt and its dispersion is stabilized; foam and dust formation in the process of product is reduced. ΠŸΡ€ΠΈ Ρ†ΠΈΡ‚ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠΈ Π΄ΠΎΠΊΡƒΠΌΠ΅Π½Ρ‚Π°, ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠΉΡ‚Π΅ ссылку http://essuir.sumdu.edu.ua/handle/123456789/2782

    Performance and wear mechanisms of novel superhard diamond and boron nitride based tools in machining Al-SiCp metal matrix composite

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    Metal matrix composites are the desired materials in aerospace and automotive industries since they possess high specific strength. However addition of reinforcement to the matrix material brings the adverse effects of high wear rate of tool materials used in their machining. The current study addresses the issues of wear and performance of superhard tools when high speed machining cast Al-Si alloy reinforced with particulate SiC (20% vol.). A wide range of developed superhard materials was compared to the commercial PCD tools. Nano grain sized wBN-cBN, binderless cBN; B6O-cBN, nano-diamond with WC binder; diamond/MAX-phase; and diamond/SiC tool materials were employed. Use of nano-diamond/WC and diamond/MAX-phase composites resulted in their rapid deterioration due to primarily adhesive pluck-out of diamond and binder phase. Diamond/SiC material exhibited slightly lower performance than the PCD, with the primary wear being the abrasive on the SiC binder phase. Machining with cBN-based tooling at lower speed lead to formation of stable build-up layer, frequently accompanied by severe seizure of tool and workpiece material. However at speed of 400 m/min the absence of such build-up layer caused rapid tool wear. Presence of chemical and diffusional wear mechanisms for diamond tooling has been confirmed through scanning and transmission electron microscopy. Archard-type model of abrasive tool wear was developed for modelling of tool deterioration for all studied tool materials

    Influence of High Sintering Pressure on the Microhardness and Wear Resistance of 335 Diamond Powder and Silicon Carbide-Based

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    The work reported on here involved the development of several samples of "diamond-SiC" composite produced under sintering pressures of up to 9.0 GPa at temperatures of up to 1973 7K. The average size of the diamond micropowder crystals used was 40/28 Β΅m. The sintering process was carried out in a 2500-ton hydraulic press equipped with an anvil-type high-pressure device having a toroidal work surface and a central concavity diameter of 20 mm. The microhardness and wear resistance of the samples were found to be dependent on the sintering pressure. The experimental results indicated that the maximum microhardness and minimum wear resistance coefficients of each compact were attained when the pressure applied during sintering exceeded 6.5 GPa. Based on the established values of pressure, this study served to identify the types of devices applicable for the manufacture of composite material inserts for a variety of rock drilling applications

    Influence of high sintering pressure on the microhardness and wear resistance of diamond powder and silicon carbide-based composites

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    The work reported on here involved the development of several samples of "diamond-SiC" composite produced under sintering pressures of up to 9.0 GPa at temperatures of up to 1973 7K. The average size of the diamond micropowder crystals used was 40/28 Β΅m. The sintering process was carried out in a 2500-ton hydraulic press equipped with an anvil-type high-pressure device having a toroidal work surface and a central concavity diameter of 20 mm. The microhardness and wear resistance of the samples were found to be dependent on the sintering pressure. The experimental results indicated that the maximum microhardness and minimum wear resistance coefficients of each compact were attained when the pressure applied during sintering exceeded 6.5 GPa. Based on the established values of pressure, this study served to identify the types of devices applicable for the manufacture of composite material inserts for a variety of rock drilling applications

    Ecological and economic efficiency of the use of granular nitrogen fertilizer with organic impurities

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    Розглянуті питання використання Π³Ρ€Π°Π½ΡƒΠ»ΡŒΠΎΠ²Π°Π½ΠΈΡ… Π°Π·ΠΎΡ‚Π½ΠΈΡ… Π΄ΠΎΠ±Ρ€ΠΈΠ² Π· Π΄ΠΎΠΌΡ–ΡˆΠΊΠ°ΠΌΠΈ, ΠΊΠΎΡ‚Ρ€Ρ– ΠΌΡ–ΡΡ‚ΡΡ‚ΡŒ Ρ…Π΅Π»Π°Ρ‚Π½Ρ– угруповання. ΠŸΡ€Π°ΠΊΡ‚ΠΈΡ‡Π½Ρƒ Π·Π°Ρ†Ρ–ΠΊΠ°Π²Π»Π΅Π½Ρ–ΡΡ‚ΡŒ ΡΡ‚Π°Π½ΠΎΠ²ΠΈΡ‚ΡŒ Π΅ΠΊΠΎΠ»ΠΎΠ³ΠΎ-Π΅ΠΊΠΎΠ½ΠΎΠΌΡ–Ρ‡Π½Π° Π΅Ρ„Π΅ΠΊΡ‚ΠΈΠ²Π½Ρ–ΡΡ‚ΡŒ використання Π΄Π°Π½ΠΈΡ… Π²ΠΈΠ΄Ρ–Π² Π΄ΠΎΠ±Ρ€ΠΈΠ² ΠΏΡ€ΠΈ Π²ΠΈΡ€ΠΎΡ‰ΡƒΠ²Π°Π½Π½Ρ– ΡΡ–Π»ΡŒΡΡŒΠΊΠΎΠ³ΠΎΡΠΏΠΎΠ΄Π°Ρ€ΡΡŒΠΊΠΈΡ… ΠΊΡƒΠ»ΡŒΡ‚ΡƒΡ€. ΠŸΡ€ΠΈ Ρ†ΠΈΡ‚ΡƒΠ²Π°Π½Π½Ρ– Π΄ΠΎΠΊΡƒΠΌΠ΅Π½Ρ‚Π°, використовуйтС посилання http://essuir.sumdu.edu.ua/handle/123456789/33708The use of granular nitrogen fertilizer additives containing chelate groups is considered in the article. Ecological and economic efficiency of these types of fertilizers for growing crops arouse practical interest at present. ΠŸΡ€ΠΈ Ρ†ΠΈΡ‚ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠΈ Π΄ΠΎΠΊΡƒΠΌΠ΅Π½Ρ‚Π°, ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠΉΡ‚Π΅ ссылку http://essuir.sumdu.edu.ua/handle/123456789/3370
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