4 research outputs found
Mathematical modeling of quantitative changes in hydrogen and oxide inclusions in aluminum alloy
In this article, mathematical modeling of quantitative changes in hydrogen and oxide inclusions in aluminum alloys is justified, developed, and analytically implemented. Usually, the methods of linear algebra are mostly used; in particular, the solutions of systems of inhomogeneous algebraic equations are obtained based on the method of Gauss, Cramer, and inverse matrices using the Maple 13 software package. Quantitative changes in hydrogen and oxide inclusions in the alloy are determined by a change in the average dispersion of the loaded flux. The connectivity functions of the change of oxide aluminum in the alloy Ξ² (%) with an increase in temperature Π’ (0Π‘) during the loading of the charge into the liquid bath are obtained. The connectivity functions to determine the change quantity of hydrogen Ξ» (cm3/100 g) in the alloy depending on the time t (minute) holding of the heated charge in the period of research is obtained. Based on functional dependencies, graphs of changes in the mainly desired parameters and numerical indexes in tabular form for engineering and applied calculations are constructed. In particular, graphs of the change quantity of hydrogen and oxide inclusions in the alloy with an increase of average dispersion of the flux d, graphs of change quantity of hydrogen with an increase in temperature during loading of the charge into the liquid bath, changes of the quantity of oxide aluminum in the alloy Ξ² (%) with an increase in temperature Π’ ( 0Π‘), patterns of change quantity of hydrogen in the alloy Ξ» (cm3/100 g) and quantity of oxide Ξ· (%) were plotted depending on the time of holding the heated charge in period research
ΠΠ°ΡΠ΅ΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠ΅ ΠΌΠΎΠ΄Π΅Π»ΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ Ρ ΠΈΠΌΠΈΠΊΠΎ-ΡΠ΅Ρ Π½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ ΠΏΡΠΎΡΠ΅ΡΡΠΎΠ² Π² Ρ ΠΎΠ΄Π΅ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΠΈ ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ Π½ΠΎΠ²ΡΡ ΡΠΏΠ»Π°Π²ΠΎΠ²
This article analyzes that the creation of mathematical models of chemical-technological
processes during the development of various alloys is supported to obtain promising new alloys in the
foundry industry. Mathematical models have been developed and analytically implemented using linear
algebra methods. Numerical values were determined and graphs of changes in the required parameters
were constructed. The development and analytical implementation of a mathematical model of the process
makes it possible to simplify practical research, and it is possible to predict the results of subsequent
experiments. This serves as the basis for the automation of chemical technological processes in the
production of non-ferrous metals and alloysΠ ΡΡΠ°ΡΡΠ΅ ΠΏΡΠΎΠ°Π½Π°Π»ΠΈΠ·ΠΈΡΠΎΠ²Π°Π½ΠΎ, ΡΡΠΎ ΡΠΎΠ·Π΄Π°Π½ΠΈΠ΅ ΠΌΠ°ΡΠ΅ΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΌΠΎΠ΄Π΅Π»Π΅ΠΉ Ρ
ΠΈΠΌΠΈΠΊΠΎ-
ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΡΠΎΡΠ΅ΡΡΠΎΠ² Π² Ρ
ΠΎΠ΄Π΅ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΠΈ ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ
ΡΠΏΠ»Π°Π²ΠΎΠ² ΠΏΠΎΠ΄Π΄Π΅ΡΠΆΠΈΠ²Π°Π΅ΡΡΡ Π΄Π»Ρ
ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΡ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΡΡ
Π½ΠΎΠ²ΡΡ
ΡΠΏΠ»Π°Π²ΠΎΠ² Π² Π»ΠΈΡΠ΅ΠΉΠ½ΠΎΠΌ ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΡΡΠ²Π΅. Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½Ρ ΠΈ Π°Π½Π°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈ
ΡΠ΅Π°Π»ΠΈΠ·ΠΎΠ²Π°Π½Ρ ΠΌΠ°ΡΠ΅ΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΌΠΎΠ΄Π΅Π»ΠΈ ΠΌΠ΅ΡΠΎΠ΄Π°ΠΌΠΈ Π»ΠΈΠ½Π΅ΠΉΠ½ΠΎΠΉ Π°Π»Π³Π΅Π±ΡΡ. ΠΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Ρ ΡΠΈΡΠ»ΠΎΠ²ΡΠ΅ Π·Π½Π°ΡΠ΅Π½ΠΈΡ
ΠΈ ΠΏΠΎΡΡΡΠΎΠ΅Π½Ρ Π³ΡΠ°ΡΠΈΠΊΠΈ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΈΡΠΊΠΎΠΌΡΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ². Π Π°Π·ΡΠ°Π±ΠΎΡΠΊΠ° ΠΈ Π°Π½Π°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠ°Ρ ΡΠ΅Π°Π»ΠΈΠ·Π°ΡΠΈΡ
ΠΌΠ°ΡΠ΅ΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΌΠΎΠ΄Π΅Π»ΠΈ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡΡ ΡΠΏΡΠΎΡΡΠΈΡΡ ΠΏΡΠ°ΠΊΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ, ΠΌΠΎΠΆΠ½ΠΎ
ΡΠΏΡΠΎΠ³Π½ΠΎΠ·ΠΈΡΠΎΠ²Π°ΡΡ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΏΠΎΡΠ»Π΅Π΄ΡΡΡΠΈΡ
ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠΎΠ². ΠΡΠΎ ΡΠ»ΡΠΆΠΈΡ ΠΎΡΠ½ΠΎΠ²ΠΎΠΉ Π°Π²ΡΠΎΠΌΠ°ΡΠΈΠ·Π°ΡΠΈΠΈ
Ρ
ΠΈΠΌΠΈΠΊΠΎ-ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΡΠΎΡΠ΅ΡΡΠΎΠ² Π² ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΡΡΠ²Π΅ ΡΠ²Π΅ΡΠ½ΡΡ
ΠΌΠ΅ΡΠ°Π»Π»ΠΎΠ² ΠΈ ΡΠΏΠ»Π°Π²ΠΎ
Π Π°Π·ΡΠ°Π±ΠΎΡΠΊΠ° ΠΈΠ·Π½ΠΎΡΠΎΡΡΠΎΠΉΠΊΠΈΡ Π΄Π΅ΡΠ°Π»Π΅ΠΉ ΠΈΠ· Π²ΡΡΠΎΠΊΠΎΠΌΠ°ΡΠ³Π°Π½ΡΠ΅Π²ΠΎΠΉ ΠΌΠΎΠ΄ΠΈΡΠΈΡΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠΉ ΡΡΠ°Π»ΠΈ 110Π13Π
The efficient operation of the technological equipment of machinery manufacturing enterprises
and heavy industry without distortion depends in many respects on the strength of their details. This
requires the study of the process of operation of the details, which are mainly rubbed with each other.
These methods are widely used in obtaining high-quality steel castings. The simplest method of processing
steel outside the oven is modification. Modified carbon steel is much more economical in properties
approaches to leached steel, while modified steel leached by saving and investigation approaches
leached steel with valuable and rare additives (Ni, Mo, Ti and other). Modification with alkaline and
alkaline-earth metals greatly increases the quality of steel. The quality of steel is positively influenced
by nitride-forming modifiersΠΡΡΠ΅ΠΊΡΠΈΠ²Π½Π°Ρ ΡΠ°Π±ΠΎΡΠ° ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΎΠ±ΠΎΡΡΠ΄ΠΎΠ²Π°Π½ΠΈΡ Π΄Π»Ρ ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΡΡΠ²Π° ΠΌΠ°ΡΠΈΠ½
ΠΈ ΡΡΠΆΠ΅Π»ΠΎΠΉ ΠΏΡΠΎΠΌΡΡΠ»Π΅Π½Π½ΠΎΡΡΠΈ Π±Π΅Π· ΠΈΡΠΊΠ°ΠΆΠ΅Π½ΠΈΠΉ Π·Π°Π²ΠΈΡΠΈΡ Π²ΠΎ ΠΌΠ½ΠΎΠ³ΠΈΡ
ΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΡΡ
ΠΎΡ ΠΏΡΠΎΡΠ½ΠΎΡΡΠΈ ΠΈΡ
Π΄Π΅ΡΠ°Π»Π΅ΠΉ. ΠΡΠΎ ΡΡΠ΅Π±ΡΠ΅Ρ ΠΈΠ·ΡΡΠ΅Π½ΠΈΡ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΡΠ°Π±ΠΎΡΡ Π΄Π΅ΡΠ°Π»Π΅ΠΉ, ΠΌΠ΅ΠΆΠ΄Ρ ΠΊΠΎΡΠΎΡΡΠΌΠΈ ΠΏΡΠΎΠΈΡΡ
ΠΎΠ΄ΠΈΡ ΡΡΠ΅Π½ΠΈΠ΅.
Π‘ΡΡΠ΅ΡΡΠ²ΡΡΡ ΠΌΠ΅ΡΠΎΠ΄Ρ, ΠΊΠΎΡΠΎΡΡΠ΅ ΡΠΈΡΠΎΠΊΠΎ ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΡΡΡΡ ΠΏΡΠΈ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΠΈ Π²ΡΡΠΎΠΊΠΎΠΊΠ°ΡΠ΅ΡΡΠ²Π΅Π½Π½ΡΡ
ΡΡΠ°Π»ΡΠ½ΡΡ
ΠΎΡΠ»ΠΈΠ²ΠΎΠΊ. Π‘Π°ΠΌΡΠΉ ΠΏΡΠΎΡΡΠΎΠΉ ΠΌΠ΅ΡΠΎΠ΄ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠΈ ΡΡΠ°Π»ΠΈ Π·Π° ΠΏΡΠ΅Π΄Π΅Π»Π°ΠΌΠΈ Π΄ΡΡ
ΠΎΠ²ΠΊΠΈ β ΠΌΠΎΠ΄ΠΈΡΠΈΠΊΠ°ΡΠΈΡ.
ΠΠΎΠ΄ΠΈΡΠΈΡΠΈΡΠΎΠ²Π°Π½Π½Π°Ρ ΡΠ³Π»Π΅ΡΠΎΠ΄ΠΈΡΡΠ°Ρ ΡΡΠ°Π»Ρ ΠΏΠΎ ΡΠ²ΠΎΠΈΠΌ ΡΠ²ΠΎΠΉ ΡΡΠ²Π°ΠΌ Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎ ΡΠΊΠΎΠ½ΠΎΠΌΠΈΡΠ½Π΅Π΅
Π²ΡΡΠ΅Π»ΠΎΡΠ΅Π½Π½ΠΎΠΉ ΡΡΠ°Π»ΠΈ, ΡΠΎΠ³Π΄Π° ΠΊΠ°ΠΊ ΠΌΠΎΠ΄ΠΈΡΠΈΡΠΈΡΠΎΠ²Π°Π½Π½Π°Ρ ΡΡΠ°Π»Ρ, Π²ΡΡΠ΅Π»Π°ΡΠΈΠ²Π°Π΅ΠΌΠ°Ρ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΊΠΎΠ½ΡΠ΅ΡΠ²Π°ΡΠΈΠΈ
ΠΈ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ, Π²ΡΡΠ΅Π»Π°ΡΠΈΠ²Π°Π΅Ρ ΡΡΠ°Π»Ρ Ρ ΡΠ΅Π½Π½ΡΠΌΠΈ ΠΈ ΡΠ΅Π΄ΠΊΠΈΠΌΠΈ Π΄ΠΎΠ±Π°Π²ΠΊΠ°ΠΌΠΈ (Ni, Mo, Ti ΠΈ Π΄Ρ.).
ΠΠΎΠ΄ΠΈΡΠΈΠΊΠ°ΡΠΈΡ Ρ ΡΠ΅Π»ΠΎΡΠ½ΡΠΌΠΈ ΠΈ ΡΠ΅Π»ΠΎΡΠ½ΠΎΠ·Π΅ΠΌΠ΅Π»ΡΠ½ΡΠΌΠΈ ΠΌΠ΅ΡΠ°Π»Π»Π°ΠΌΠΈ Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎ ΡΠ²Π΅Π»ΠΈΡΠΈΠ²Π°Π΅Ρ ΠΊΠ°ΡΠ΅ΡΡΠ²ΠΎ
ΡΡΠ°Π»ΠΈ. ΠΠ° ΠΊΠ°ΡΠ΅ΡΡΠ²ΠΎ ΡΡΠ°Π»ΠΈ ΠΏΠΎΠ»ΠΎΠΆΠΈΡΠ΅Π»ΡΠ½ΠΎ Π²Π»ΠΈΡΡΡ Π½ΠΈΡΡΠΈΠ΄Π½ΡΠ΅ ΠΌΠΎΠ΄ΠΈΡΠΈΠΊΠ°ΡΠΎΡ
Π£ΡΠ»ΠΎΠ²ΠΈΡ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ ΠΏΠΎ ΡΡΡΠΊΠ΅ Π·Π΅ΡΠ½Π°
This paper examines the effect of heater power, speed of drying agent (air), adjustable slit
width and number of revolutions of drying drum on the drying efficiency of the device, the moisture
content of the rice pile coming out of the drum, and the chatness of rice in the rice pile. In addition,
showed the changes in the value of the heating power and the drying efficiency of the device. The
change of the adjustable slot size of the drying drum and the drying efficiency of the device consist
of determining the effect of the moisture content of the pile of rice coming out of the drum and the
effect of rice chatnash in the pile of rice. The experimental rice drying device in a stationary version
was prepared at the βAndijan experimental- testing plantβ JSC according to the design drawings developed by the Andijan Institute of Mechanical Engineering. Based on the results of theoretical
studies, a drying drum with a diameter of 880 mm and a length of 1800 mm was adopted as the main
working bodyΠ ΡΡΠΎΠΉ ΡΡΠ°ΡΡΠ΅ ΡΠ°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°Π΅ΡΡΡ Π²Π»ΠΈΡΠ½ΠΈΠ΅ ΠΌΠΎΡΠ½ΠΎΡΡΠΈ Π½Π°Π³ΡΠ΅Π²Π°ΡΠ΅Π»Ρ, ΡΠΊΠΎΡΠΎΡΡΠΈ ΡΡΡΠΈΠ»ΡΠ½ΠΎΠ³ΠΎ
Π°Π³Π΅Π½ΡΠ° (Π²ΠΎΠ·Π΄ΡΡ
Π°), ΡΠ΅Π³ΡΠ»ΠΈΡΡΠ΅ΠΌΠΎΠΉ ΡΠΈΡΠΈΠ½Ρ ΡΠ΅Π»ΠΈ ΠΈ ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ²Π° ΠΎΠ±ΠΎΡΠΎΡΠΎΠ² ΡΡΡΠΈΠ»ΡΠ½ΠΎΠ³ΠΎ Π±Π°ΡΠ°Π±Π°Π½Π°
Π½Π° ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΡΡΡΠΊΠΈ ΡΡΡΡΠΎΠΉΡΡΠ²Π°, ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ Π²Π»Π°Π³ΠΈ ΡΠΈΡΠΎΠ²ΠΎΠΉ ΠΊΡΡΠΈ, Π²ΡΡ
ΠΎΠ΄ΡΡΠ΅ΠΉ ΠΈΠ· Π±Π°ΡΠ°Π±Π°Π½Π°,
ΠΈ ΡΠ°Ρ Π² ΠΊΡΡΠ΅ ΡΠΈΡΠ°. ΠΡΠΎΠΌΠ΅ ΡΠΎΠ³ΠΎ, ΠΏΠΎΠΊΠ°Π·Π°Π½Ρ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΡ Π² Π·Π½Π°ΡΠ΅Π½ΠΈΠΈ Π½Π°Π³ΡΠ΅Π²Π°ΡΠ΅Π»ΡΠ½ΠΎΠΉ ΠΌΠΎΡΠ½ΠΎΡΡΠΈ
ΠΈ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ ΡΡΡΠΊΠΈ ΡΡΡΡΠΎΠΉΡΡΠ²Π°. ΠΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΡΠ΅Π³ΡΠ»ΠΈΡΡΠ΅ΠΌΠΎΠ³ΠΎ ΡΠ°Π·ΠΌΠ΅ΡΠ° ΡΠ»ΠΎΡΠ° ΡΡΡΠΈΠ»ΡΠ½ΠΎΠ³ΠΎ Π±Π°ΡΠ°Π±Π°Π½Π°
ΠΈ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΡΡΡΠΊΠΈ ΡΡΡΡΠΎΠΉΡΡΠ²Π° Π·Π°Π²ΠΈΡΡΡ ΠΎΡ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ ΡΡΡΠ΅ΠΊΡΠ° ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΡ Π²Π»Π°Π³ΠΈ Π½Π° ΠΊΡΡΡ
ΡΠΈΡΠ°, Π²ΡΡ
ΠΎΠ΄ΡΡΠ΅Π³ΠΎ ΠΈΠ· Π±Π°ΡΠ°Π±Π°Π½Π°, ΠΈ ΡΡΡΠ΅ΠΊΡΠ° ΡΠΈΡΠΎΠ²ΠΎΠ³ΠΎ ΡΠ°ΡΡΠ°Π½Π° Π² ΠΊΡΡΠ΅ ΡΠΈΡΠ°. ΠΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎΠ΅
ΡΡΡΡΠΎΠΉΡΡΠ²ΠΎ Π΄Π»Ρ ΡΡΡΠΊΠΈ ΡΠΈΡΠ° Π² ΡΡΠ°ΡΠΈΠΎΠ½Π°ΡΠ½ΠΎΠΉ Π²Π΅ΡΡΠΈΠΈ Π±ΡΠ»ΠΎ ΠΏΠΎΠ΄Π³ΠΎΡΠΎΠ²Π»Π΅Π½ΠΎ Π½Π° Β«Andijan Experimental
Testing PartmentΒ» JSC Π² ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΠΈΠΈ Ρ Π΄ΠΈΠ·Π°ΠΉΠ½Π΅ΡΡΠΊΠΈΠΌΠΈ ΡΠ΅ΡΡΠ΅ΠΆΠ°ΠΌΠΈ, ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½ΡΠΌΠΈ ΠΠ½Π΄ΠΈΠΆΠ°Π½ΡΠΊΠΈΠΌ
ΠΈΠ½ΡΡΠΈΡΡΡΠΎΠΌ ΠΌΠ°ΡΠΈΠ½ΠΎΡΡΡΠΎΠ΅Π½ΠΈΡ. ΠΡΠ½ΠΎΠ²ΡΠ²Π°ΡΡΡ Π½Π° ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ°Ρ
ΡΠ΅ΠΎΡΠ΅ΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ, Π±ΡΠ»
ΠΏΡΠΈΠ½ΡΡ ΡΡΡ
ΠΎΠΉ Π±Π°ΡΠ°Π±Π°Π½ Π΄ΠΈΠ°ΠΌΠ΅ΡΡΠΎΠΌ 880 ΠΌΠΌ ΠΈ Π΄Π»ΠΈΠ½ΠΎΠΉ 1800 ΠΌΠΌ Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΎΡΠ½ΠΎΠ²Π½ΠΎΠ³ΠΎ ΡΠ°Π±ΠΎΡΠ΅Π³ΠΎ ΡΠ΅Π»