Principles of construction and identification of a multilevel system for monitoring parameters of technological cycle of casting

Shinsky, O.I.; Shalevska, Inna; Kaliuzhnyi, P.B.; Shinsky, V. O.; Lysenko, Tetiana; Шевчук, Т. О.; Sliusarev, Vadym; Pohrebach, Ievgen; Kolomiitsev, S. V.

doi:10.15587/1729-4061.2018.141303

Cited by 6 publications

(2 citation statements)

References 4 publications

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“…When castings are obtained by reinforcing them with macroimplants located in the mold cavity or in the foam pattern, multicomponent systems new for the foundry theory arise: «metal-pattern-implant-mold» and "metal-reinforcing phase-mold". It is important to determine the conditions and relations of the influence of the reinforcing phase on the gas-hydrodynamic processes of the melt pouring, which will make it possible to determine the deterministic relationship between the technological parameters and ultimately control the quality of the casting [5].…”

Section: Introductionmentioning

confidence: 99%

Physical Modeling of the Hydrodynamic Processes of Casting Molds Pouring Filled With a Locally Oriented Reinforcing Phase

Shalevska

Kaliuzhnyi

2019

Technology transfer: fundamental principles and innovative tech

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In the process of manufacturing reinforced castings by lost foam casting it is important to determine the laws of gas-hydrodynamic processes that occur during mold pouring. The study of liquid metal filling process a mold filled with a locally oriented reinforcing phase was carried out by the method of physical modeling using cold liquids on a special experimental bench that allows superimposing rarefaction to the front of the liquid metal. The video frames of the filling process the mold cavity without the reinforcing phase and with the presence of vertically mounted metal rods are obtained. It was established that the filling process without reinforcing elements occurs in three stages: 1) the flow of a gushing free stream into space; 2) the destruction of the free stream with the capture of the gas phase; 3) filling the form with a continuous stream with the removal of smaller gas inclusions from the liquid volume. It was also established that with an increase in the rarefaction, the character of filling the mold is preserved, only the intervals of existence of the corresponding stages are reduced. In the presence of a reinforcing phase in the cavity, a marked decrease in the height of the gushing of the jet in the initial stage with an increase in the number of installed rods. In addition, crushing by rods of a limited model space creates more favorable conditions for removing the filled gas phase from a moving stream.

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Section: Introductionmentioning

confidence: 99%

Physical Modeling of the Hydrodynamic Processes of Casting Molds Pouring Filled With a Locally Oriented Reinforcing Phase

Shalevska

Kaliuzhnyi

2019

Technology transfer: fundamental principles and innovative tech

Self Cite

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“…Процессы производства армированных отливок методом литья в формах, в которых размещаются макроимплантаты (армирующие элементы) различной геометрии, сопровождаются сложными газогидродинамическими и тепломассообменными процессами. При получении отливок путем армирования их макроимплантатами, расположенными в полости литейной формы или в пенополистироловой модели, возникают новые для теории литейных процессов многокомпонентные системы: «металл-модельимплантат-форма» и «металл-армирующая фаза-форма» [4].…”

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Research of heat-exchange processes in a casting form with reinforcing phase

Шалевская

2019

Litʹë metall.

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The method of lost foam casting with the reinforcing phase installed inside the polystyrene foam model is considered as a basic technological process. In The new multicomponent systems for the theory of foundry processes will be created in this case: «metal–model–implant–mold» and «metal–reinforcing phase–mold». The influence of the installed macroreinforcing elements in the form of steel rods on the heat and mass transfer was researched, solidification and hydrodynamics is investigated. The process was modeled using the ProCast program by evaluating the solidification conditions in the sand casting mold of cast samples from copper alloys and the reinforcing phase from carbon steel. To compare the results, the process of solidification of cast specimens with a size of 10×200 mm without a reinforcing phase and with a reinforcing phase in the form of rods occupying 20 and 50% of its cross section area was modeled. The research results are presented in the form of graphical curves of the cooling temperature and time. It has been established that the use of a reinforcing phase in a casting mold has a significant impact on the removal of metal overheating due to the consumption of a certain amount of heat for heating the reinforcing phase, increases the rate of alloy hardening and casting cooling.

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A New Technology for Producing the Polystyrene Foam Molds Including Implants at Foundry Industry

Ponomarenko

Yevtushenko

Lysenko

et al. 2019

Lecture Notes in Mechanical Engineering

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Principles of construction and identification of a multilevel system for monitoring parameters of technological cycle of casting

Cited by 6 publications

References 4 publications

Physical Modeling of the Hydrodynamic Processes of Casting Molds Pouring Filled With a Locally Oriented Reinforcing Phase

Physical Modeling of the Hydrodynamic Processes of Casting Molds Pouring Filled With a Locally Oriented Reinforcing Phase

Research of heat-exchange processes in a casting form with reinforcing phase

A New Technology for Producing the Polystyrene Foam Molds Including Implants at Foundry Industry

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