FEATURES OF THE METHOD OF CHARGING THE BATTERY BATTERY

The article is devoted to the consideration of methods and devices for reducing the charge time of a lead-acid battery. In addition, the device for accelerated charging of a battery with an asymmetric current based on the charge of discharge converters isproposed.Key words:method, charging, discharging, storage battery, asymmetric current, density, electrolyte

THEORETICAL AND PRACTICAL BASIS OF ROLLED PRODUCTS

The article presents the theoretical and practical basis for the production of rolled products in the conditions of a metallurgical plant. The processes of plastic deformation of bodies between rotating drive rolls are shown. The main results of research on rolled products made of rolled steel are presented. The chemical composition, mechanical properties, macro -and microstructure parameters, and strengthening treatments of locally produced rolled steel were studied. It is shown that after hardening treatment, the strength increases and the quality of rolled products improves.Keywords:composition and properties of rolled metal products, plastic deformation process, rotating drive rollers, rolled body, rolled steel, hardening heat treatment, hardness, macro-and microstructure, performance and quality of finished products

PLANNING OF SALES AND OPERATIONS (S&OP) AS A TOOL FOR OPTIMIZING THE PROCESS OF MATERIAL AND TECHNICAL SUPPORT OF THE OIL AND GAS COMPLEX

The article providesthe main problems of oil and gas enterprises in the supply chains in the loop of procurement based onexample of Uzbekneftegaz. The possibilities of modern information logistics technologies in solving the above problems are reflected. The author's model of integratedplanning based on the logistics technology Sales & Operations Planning, taking into account the peculiarities of the oil and gas industry, is proposed for implementation at oil and gas enterprises in order to improve the efficiency of the planning and implementation of business processes.Key Words:logistics, supply chain, sales and operations planning, S&OP, oil and gas complex, integrated planning

WATER SUPPLY IS THE MOST IMPORTANT BRANCH OF THEECONOMIC COMPLEX

This article deals with the problem of transporting water horizontally, vertically and at an incline of 45 degrees at different speeds of water. The results obtained in tabular form and the analysis of these values was carried out.Keywords: flow rate, indicated volume, measured mass, average tempеrature, distilled water temperature, tested water temperature, actual volume.

FIRE SAFETY OF OIL AND GASCOMPLEX FACILITIES IN UZBEKISTAN: PROBLEMS AND SOLUTIONS/Part 1/

A comprehensive analysis of the state of fire safety of the backbone, oil and gas industry of the republic is considered. Options for improving the technical support of individual, fire-and-explosion-hazardous industries in the industry and specialized training of specialists are offered.Keywords: fire safety, anti-terrorist security, energy saturation, system analysis, risks

OPTIMAL HARDENING TREATMENT OF CAST PARTS OF MACHINES WITH A HARD-ALLOY WEAR-RESISTANT COATING

The article presents research materials on thestructure and properties of hard-alloy coatings obtained in the process of casting products using gasified models. The composition and properties of steel were studied, as well as the hardness and microhardness of the surface and subsurface layers of castparts. The relative wear resistance of tests performed in laboratory and field conditions is analyzed. The final modes of heat treatment with double phase recrystallization for cast parts are carried out. It is shown that heat treatment with double phase recrystallization increases the wear resistance of hard-alloy coatings and finished products by 3-4 times.Keywords: gasified model Casting, hard-alloy coating, high-carbon steel, hardness and microhardness, microstructure, heat treatment with double phase recrystallization, abrasive wear resistance and durability

ANALYSIS OF ERRORS AND ASSESSMENT OF THE TOTAL ERROR OF THERMAL CONVERTERS OF MOISTURE CONTENT OF LIQUID MATERIALS

The papershows that the main sources of error in thermal converters of moisture content are the nonlinearity of the static characteristic, the influence of changes in the temperature of the flow of liquid material and thermal inertia. The results of the analysis determined that errors can be reduced using correction methods.Key words: measurement error, error estimation, classification, source of error, measurementrange, controlrange, дdynamic error, distributions, аstability, сcross-section

REDUCING THE VISCOSITY OF OIL CONTAINING COLLOIDAL PARTICLES ON THE BASIS OF THE FRACTAL THEORY ON THE EXAMPLE OF PRESSURE OSCILLATIONS BY ULTRASONIC IMPACT

The content of the work consists in obtaining from high-viscosity oil, oil with a lower viscosity, in order to increase oil recovery. Proceeding from the fact that today the most pressing issue is the growth of oil production, amethod for increasing oil recovery was recommended basedon the fractal theory, pressure fluctuations of the studied fluid. This analysis shows that a decrease in oil viscosity can be obtained only at small values of the amplitude of oscillations for a definite long time.Key words:High-viscosity oil, colloidal particles, fractal aggregate (FA), ultrasonic action, fractal theory, shear rate, pressure fluctuation

CALCULATION OF THE BASIC AND ADDITIONAL ERRORS OF THE MOISTURE METER OF GRAIN AND GRAIN PRODUCTS

Calculation of the basic error of the moisture meter is determined by the error in measuring the frequency. The latter, in turn, consists of the error of the timer-counter when counting the frequency (quantization), the error in determining the coefficients a1and a2of the mathematical model of the measuring transducer during calibration, and the error due to the noise of the comparator-amplifier.Keywords:error, error calculation, measurements, result.

ACTUALIZATION OF EDUCATION IN THE CONDITIONS OF SOCIAL AND ECONOMIC DEVELOPMENT OF UZBEKISTAN

The work focuses on the conditions for stimulating the economy in order to expand the boundaries of business activity of the population, especially young people, to achieve the principles of competitiveness and the demand for specialists in the labor market. It has been proved that the level of education of the population, its mobile susceptibility to critical comprehension and self-motivation are the favorable criteria for social and economic achievements. State regulatory standards are given that ensurea high-quality level of the educational sphere in Uzbekistan, positive guidelines for modern forms, types, technologies, innovations of education in the country.Key words: innovative technologies, modular education, sustainable development, socio-economic development.