Polygonizing controlled rolling of slabs for making oil country tubes
The study of structural changes during hot deformation metal during controlled rolling. The influence of preheating temperature and deformation degree on the size and shape of austenite grains. The definition of the polygonal structure of the austenite.
Подобные документы
The establishment of unfavorable modes of operation of mining equipment under which there is an unstable position in space of the suction head during its descent to the bottom. The influence of hydrostatic pressure on the strengthening of the digging.
статья, добавлен 30.07.2016Hydrothermal sol-gel synthesis of hexagonally ordered silicas using a hybrid template system is reported. Silicas were characterized by IR spectroscopy, X-ray diffraction techniques as well as electron microscopy. The hexagonal structure of MCM-41.
статья, добавлен 30.07.2016NbN and Nb-Si-N films were deposited by magnetron sputtering the Nb and Si targets on silicon wafers at various bias voltage. The films were annealed to establish their stability. The films were nanostructured represented an aggregation of crystallites.
статья, добавлен 30.07.2016Motion systems as core technologies, as mechanical systems, like microelectronic manufacturing equipment, are required to achieve high speed and accuracy. The influence of the dynamics of a mechanical system on the quality of the position tracking syste
статья, добавлен 26.08.2020Getting the coordination compounds of Zn (II) and Cd (II) from 3-methoxybenzene acid hydrazide using hot etanolnyh or water-ethanol solutions in weakly acidic medium. Participation organic ligand molecules in the formation of solid Zn(II) і Cd(II).
статья, добавлен 23.02.2016Polytetrafluoroethylene as one of the promising polymers for tribotechnical purposes. The use of polysulfonamide fiber to increase the wear resistance of polytetrafluoroethylene under conditions of friction without lubrication in reciprocating motion.
статья, добавлен 11.08.2021Using transmission electron microscopy methods the layer by layer analysis of the bulk hardened superior quality rails is carried out, phase state and defect substructure gradients are established. Character of changing of structure-phase states.
статья, добавлен 30.07.2016The comparison of natural modes for the first and second transverse oscillation modes obtained by numerical simulation and finite element package of analytical calculation of the core model. The analysis waveforms for different values of the defect.
статья, добавлен 29.06.2017Structure of engineering systems. A description of the statistical procedures recommended for use in reliability analysis "related" components. The choice of an appropriate probabilistic model for predicting the reliability of components of one's sibling.
статья, добавлен 14.09.2016Development of a managed system architecture with the possibility of full-scale parametric optimization. Systematization of the architecture of the conversion system by the example of the technological process of liquid heating. Software designer EFFLI.
статья, добавлен 30.10.2016Wind turbine concept with air duct. Influence of the exit area and entry area on aerodynamic characteristics. Designing a new model of Invelox. The need to install a curtain at the end of the air intake to change the direction of the air flow up, down.
статья, добавлен 08.03.2021Huge gaps in structure and performance between different types of engines. The types and performance of modern advanced aero-engines, their practical applications in various aviation fields, and the development direction of future aircraft engines.
статья, добавлен 04.09.2024The influence of the addition of soy flour processed by ultrafine grinding and irradiation on the quality of crispy baked goods. The wet soybean grounds were dried and ground in an ultra-fine grinding machine. Also set the ratio of beans to water.
статья, добавлен 02.06.2022Analysis of the development of the basic methods of engineering the contact surfaces of tribological systems. Characteristics of the problems and prospects of development of technologies of creating surfaces of discrete-oriented structure of the system.
статья, добавлен 18.02.2016- 115. Investigation of properties of the constant technological track, which is used in bridge agriculture
Mechanical properties of soil traces of a permanent technological track and their influence on the traction and traction properties of a bridge agricultural machine of a new design. The research was conducted using the provisions of the tractor theory.
статья, добавлен 30.08.2022 Studies on the preparation of pasty high-filled compositions and evaluation of their rheological properties using a rotational visco-meter "Reotest-2" on the cone-plane system. Evaluation of sedimentation resistance of compositions and their flow.
статья, добавлен 30.10.2016- 117. Accidental invention
Study of features of lysergic acid diethylamide opening. Characteristic aspects of cornflakes in the United States. Analysis of the background of the invention of the pacemaker. Characteristics based on the version of the discoverer of anesthesia.
презентация, добавлен 16.11.2013 - 118. Features of check directional power relay series rbm through the use of digital testing systems
Evaluation of the effectiveness of electronic test during verification of the direction and power of electric switches connecting or disconnecting the circuit when certain conditions are met. The study of the performance of Electromechanical relays.
статья, добавлен 14.09.2016 The model of the disperse material behavior under vibration in the hole of the dispenser based on the Navier-Stokes equations. The influence of the power factor on the movement of the product and the parameters of the hole on the vibrating dosing process.
статья, добавлен 14.09.2016Discussing an innovative technology for fault detection of the pipelines transportation. Study and characteristic repeated correlation of the above structures with kinematic diagram of failure, which make for adequate predicting the remaining life.
статья, добавлен 02.11.2018Environmental biotechnology study the use of living organisms for a wide range of applications in hazardous waste treatment and pollution control. The use of biotechnology in the dairy industry. Methods for producing whey. Security staff activity.
курсовая работа, добавлен 13.04.2015The concept and functional characteristics of diamond-like films of amorphous carbon with a high concentration of carbon with SP3. The peculiarities of their practical use. Diagram of the coating, its physical and chemical properties, the benefits.
статья, добавлен 12.06.2015Consideration the influence of scandium on mechanical properties and heat-resistance of magnesium alloy ML10. Macrostructure of ML10 alloy with different scandium content. Sizes of microconstituents of heat-treated alloy with different scandium content.
статья, добавлен 30.01.2016- 124. Effect of functional fiber on viability of lactic acid bacteria and bifidobacteria during storage
The influence of gum arabic and oligofructose on the growth and viability of starter cultures of lactic acid bacteria and bifidobacteria used for the production of dairy products. Stimulation of growth of probiotic cultures in the presence of gum arabic.
статья, добавлен 25.12.2016 The Safety Experience Center where you can create a space where you can experience a virtual disaster, learn how to survive, and find alternatives that can increase your viability the most. In order to commemorate the tragedy of the "Sewol ferry".
статья, добавлен 12.05.2024