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| FATIGUE PROPERTIES OF THE MATERIAL OF LARGE-SIZED DETAILS |
| Unique statistically exact and reliable estimations of parameters of curves of fatigue of materials of the samples, which have been cut out from large-sized forgings in external diameter of 1300 mm from four marks steels, from which produce bearing details of the metallurgical equipment were presented, at fatigue tests for a bend with rotation and a symmetric cycle loading, and also the full probabilistic diagrams of fatigue, displayed by the equations of regress, containing new parameter - probability of destruction, and possessing high accuracy and reliability. |
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| STRESS - STRAIN STATE OF HEAVILY LOADED CONNECTING RODS (PULL RODS) OF THE MECHANISM OF CUTTING OF BILLET SHEARS |
| The some results of computer investigations by a method of finite elements of the flat stress -strain states in consideration of concentration of stresses of real designs of connecting rods of the mechanism of cutting of shears billets rolling mills are shown. They quote the relationships which link the levels of the maximum stresses in the pull rods with their design parameters, which determine their design version and the new design of the increased carrying capacity and smaller metal consumption is submitted. |
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| THE PRINCIPLES OF PROGRAMMED CONTROL OF THE ELECTRIC DRIVE BILLET SHEARS |
| Principles of creation of microprocessor system of program management by the electric drive of billet shears of billet rolling mills, providing significant reduction of the charge of the electric power and decrease of load capacity of the equipment are offered, mathematical modeling proves informatively-manager parameters of system and its efficiency is proved; the variant of realization of principles is resulted. |
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| THE METHOLOGY OF PARAMETRIC OPTIMIZASHION OF DETAILS AND DESIGNS OF COMPLEX CONFIGURATIONS |
| The opportunity is substantiated and the algorithm of stage-by-stage consecutive parametric optimization of carrier details and designs of the complex configurations, based on correct application of strict mathematical methods is offered, serviceability and efficiency which is proved of many years practice of designing of the equipment of heavy mechanical engineering |
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| OPTIMIZATION OF TECHNOLOGICAL REGIMENS, PARAMETERS OF PROCESSES ROLLING AND THE EQUIPMENT OF REVERSIBLE AND CONTINUOUS ROLLING MILLS |
| The methodology and mathematical statements with various criterion functions of problems of optimization of technological regimens and parameters rolling on the reversible and continuous rolling mills, based on correct application of principles of the system analysis and strict mathematical methods of the theory of optimum control are presented. |
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| NEW TECHNOLOGIES AND THE EQUIPMENT FOR PRODUCTION OF HIGH-QUALITY BILLETS AND HEVY I-BEAMS |
| On the basis of the results of experimental researches in production conditions of process rolling of the large billets in four-high calibre by the scheme of all-round compression, the high intensity of three- dimensional deformation, peculiar to this technology, as well as the high quality of metal ( the equiaxial grain) and the high mechanical properties of received rolling productions are shown. The design of the four-high stand collet of the type, realizing this technology, and promising the versions its of applications, at reconstruction of the continuous billet, medium- and small section mills, as well as in rolling conversion of continuously cast billets are offered. |
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| CONSTANTLY INCREASING POSSIBILITIES OF P/M TECHNOLOGY |
| The capsule is a disposal technological fixture. Its internal cavity reproduces the part shape taking into account shrinkage and allowance for subsequent machining.
Manufacturing technology of the part from 3-D model to the finished part significantly cuts down the part's manufacturing hours.
The produced part ensures high technical characteristics being not inferior to forging parts. |
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| ADVANTAGES IN LASER TECHNOLOGY |
| Implementing laser technology has permitted to refuse from designing and manufacturing labour consuming and expensive tooling and fixtures such as blanking and dinking dies, conductors and templates. |
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| INVESTMENT CASTING |
| Perfect investment casting ensures high quality castings of gas turbine engine components. For high stressed components operating in alternating load and high temperature conditions the casting method of high velocity directional solidification is used. |
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| ELIS Technology. |
| Our Company has developed the technology of strengthening of surface layers of steels and alloys by means of impulse electron beam.
The modified layer is formed by action of fast heating (heating duration is about 2 microseconds) and fast cooling. The layer thickness varies within the limits of 10 - 60 microns and its structure is close to amorphous one. |
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| STEMET AMORPHOUS RIBBON SOLDERS |
| Amorphous metal alloys are a new class of materials with specific properties due to their structural state. Their amorphous structure is a liquid-like condition of the solid state. The main feature of this structure is a chaotic arrangement of the atoms, which makes the solders very strong, corrosion-resistant, magnetically anisotropic, radioresistant, and completely homogeneous structurally and chemically. |
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| HEAVY METAL PASSIVATOR FOR THE PROCESS OF RESID CAT CRACKING |
| A water-soluble heavy metal passivator on the basis of antimony compounds and certain other elements have been developed.
The application of this passivator permits to involve feedstock with an elevated content of nickel and vanadium into cat cracking, for instance, vacuum gas oil with an f.b.p above 540°C, a mixture of vacuum gas oil with mazut (atmospheric residue) and mazut. |
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| NEW TECHNOLOGIES USED IN MACHINE-BUILDING FOR MANUFACTURING DIES AND MOLDS |
| New technologies have been developed for manufacturing complex mold and die casting blocks with a 3 micron pre-finish surface condition, thus considerably reducing the previous amount of machining. |
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| THIN RIBBON OF SHAPE-MEMORY ALLOYS |
| Using the technology of rapid melt solidification, the industrial production of a thin ribbon made of alloys exhibiting the shape memory effect (SME) has been achieved for the first time. The alloys were developed jointly with the Master Research ñompanó. The main feature of such alloys is their capability to change their shape, as prescribed, depending upon the temperature, while at the same time producing a considerable mechanical force. Thanks to the unique properties of SME alloys, their applications are highly diverse continually expanding, primarily in instrument-making, electrical engineering, aerospace technologies, medicine, and minirobotics. |
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| DIISODODECYLAMINE: AN ALTERNATIVE AGENT FOR EXTRACTING RARE REFRACTORY METALS FROM ACIDIC SOLUTIONS |
| Diisododecylamine (DIDA),
synthesized on a pilot scale from readily available and inexpensive raw
materials, is a promising agent for extracting rhenium, molybdenum, and tungsten
from various acidic solutions; it is an alternative to tertiary amines based on
tri-n-octylamine, known by the technical name: trialkylamine (TAA), aliquat 336. |
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| ALUMINUM-MAGNESIUM ALLOY DOPED WITH SCANDIUM |
| A high-resistant aluminum-magnesium alloy doped
with scandium has been developed as well as technology of treating and using it
in aircraft structures. |
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Metallurgy
