Igor Mazur
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View article: ENERGY-SAVING TECHNOLOGIES IN PIPE PRODUCTION
ENERGY-SAVING TECHNOLOGIES IN PIPE PRODUCTION Open
Ukrainian metallurgical enterprises with a full cycle have fuel costs at the level of 1.4÷1.6 tons of conventional fuel per ton of produced products, while the share of energy costs in the cost of rolled products is approximately 40%. At t…
View article: STUDY OF MECHANICAL PROPERTIES OF ELECTRICAL STEEL GRADE USING METHODS OF PHYSICAL AND MATHEMATICAL MODELING
STUDY OF MECHANICAL PROPERTIES OF ELECTRICAL STEEL GRADE USING METHODS OF PHYSICAL AND MATHEMATICAL MODELING Open
Electrical steel sheet is an important material in the manufacture of various parts of electrical devices with high magnetic properties.The need to form the desired properties of the metal makes special demands on the organization of the p…
View article: ANALYSIS OF REGRESSION MODELS OF STRENGTH AND PLASTIC PROPERTIES OF DEFORMATION-THERMALLY HARDENED REINFORCING PROFILE
ANALYSIS OF REGRESSION MODELS OF STRENGTH AND PLASTIC PROPERTIES OF DEFORMATION-THERMALLY HARDENED REINFORCING PROFILE Open
Numerous studies have shown that the processes of structure formation as aresult of the combined effect of plastic deformation and phase transformations onthe alloy are different from the formation of the structure during conventional heat…
View article: Research on the Effect of Reduction Distribution in Universal Stands on the Process of Metal Transition from Sides to the Center Line of Transfer Bar
Research on the Effect of Reduction Distribution in Universal Stands on the Process of Metal Transition from Sides to the Center Line of Transfer Bar Open
The edge defects formed on the continuously cast slab before entering the hot rolling mill in the roughing group of the broadband mill are moved from the side faces and edges of the slab to the upper and lower surface of the slab. This pro…
View article: Defects and Incompatibilities of Pipes Manufactured by Pilgrim Method
Defects and Incompatibilities of Pipes Manufactured by Pilgrim Method Open
The increase in the quality requirements for the pipes and the increasing needs to reduce production costs, while increasing the efficiency of the process in market of hot rolled pipes are observed. One of the cost reduction factors is the…
View article: Modeling the Dynamic Recrystallization and Flow Curves Using the Kinetics of Static Recrystallization
Modeling the Dynamic Recrystallization and Flow Curves Using the Kinetics of Static Recrystallization Open
The results of modeling the dynamic recrystallization of steels during hot deformation on the basis of information on their static recrystallization kinetics are presented. The results of predicting the amount of deformation accumulated in…
View article: Hot rolling strips at the casting and rolling unit during coil-to-coil and endless rolling modes
Hot rolling strips at the casting and rolling unit during coil-to-coil and endless rolling modes Open
The study of hot rolled steel production technology with an assessment of the impact of the main technological processes and operations on the quality of the finished product, the possibility of expanding the range of steel grades and prod…
View article: Forecasting the mean flow stress of carbon and low-alloy steels in hot rolling on a strip mill
Forecasting the mean flow stress of carbon and low-alloy steels in hot rolling on a strip mill Open
The effectiveness of the initial setup of the mill stands depends on the accuracy of the calculation of the mean flow stress of the rolled metal, the value of which is determined not only by the deformation parameters, but also depends on …
View article: Modeling of temperature influence on resistance to plastic deformation of electrotechnical steels in hot rolling
Modeling of temperature influence on resistance to plastic deformation of electrotechnical steels in hot rolling Open
Electrotechnical steels include dynamo and transformer steels, so that to dynamo belong steels with content of silicon from 0.8% to 2.5%, and to transformer - with content of silicon to 4.8%. From the flatness of the electrotechnical sheet…
View article: The study of the thermal state of the metal in the production of the hot rolled strips in «Deform 3D»
The study of the thermal state of the metal in the production of the hot rolled strips in «Deform 3D» Open
The mathematical model of the thermal state of the sheet metal has been developed, taking into account radiation heat exchange and convection between the metal surface and the environment, the impact of descaling, heat transfer at the cont…
View article: STUDY OF METAL FLOW PATTERN DURING UPSETTING
STUDY OF METAL FLOW PATTERN DURING UPSETTING Open
АннотацияПроизводство поковок с ребрами жесткости из алюминиевых сплавов, получаемых объемной штамповкой на гидравлических прессах большой мощности, нередко сопровождается образованием дефектов (прострел, утяжина и т.п.), которые вызваны, …
View article: Evaluation of the effectiveness of the use of horizontal and vertical rolls in the “Rolling-pressing” process on the basis of the stress-strain state studying
Evaluation of the effectiveness of the use of horizontal and vertical rolls in the “Rolling-pressing” process on the basis of the stress-strain state studying Open
In this work was performed a comparative analysis of the efficiency of horizontal and vertical rolls in the "rolling-pressing" process. The comparison was performed based on the study of stress-strain state of both variants with the aid of…
View article: Quality Control system for a hot-rolled metal surface
Quality Control system for a hot-rolled metal surface Open
The modern ideas about of quality of products are based on the principle of the absolute satisfaction of requirements of recommendations of the buyer. A presence of surface defects of steel-smelting and rolling origin is peculiar to the pr…
View article: Mathematical modelling of soft reduction in Abaqus software with the application of tensile testing under crystallization conditions on Gleeble-3800
Mathematical modelling of soft reduction in Abaqus software with the application of tensile testing under crystallization conditions on Gleeble-3800 Open
As a result of increased production level of thin slab at Casting and Rolling Complexes, soft reduction modelling is a vital task in the field of metallurgy and metal forming. Key element of soft reduction is the metal deformation immediat…
View article: Research of temperature change of the roll after dumping from the stand
Research of temperature change of the roll after dumping from the stand Open
At present, with the increasing demand for steel, strict requirements for the quality of the hot-rolled steel increase greatly. One of important criteria of the quality of the finished steel is a transverse profile. Currently, there are a …