A numerical optimization of heat transfer in a system a plate casting - mold - surroundings

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F18%3APU128927" target="_blank" >RIV/00216305:26210/18:PU128927 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

A numerical optimization of heat transfer in a system a plate casting - mold - surroundings

Original language description

The solidification and cooling of a casting, and the simultaneous heating of the mold is described by the Fourier equation. An original three-dimensional (3D) numerical model of the temperature field of a system, comprising a plate casting, the mold and the surroundings, had been assembled and used to optimize the production technology of a vertically cast steel plate. The accuracy of a numerical model depends not only on the spatial and temporal discretization, but also on the accuracy with which the thermophysical properties of all materials entering the system are determined. The temperature field of this plate was analyzed with different angles of widening in its cross-section (in the range 0° to 4.4°). From the slanted side, the plate was either insulated or uninsulated. Plastizol was used as the insulator. An uninsulated plate has a calculated optimum angular widening of 3°. A widening of 2° is the minimum angle from which internal defects (e.g. shrinkage cavities) begin to disappear. The insulated plate has an optimum angle of widening of 2°. Using calculations, it is possible to predict that the plate itself will have the same internal quality with a widening of 3° after crystallization without insulation, as a 2° widening has with insulation. The knowledge gained in this study can lead to the reduction of the volume of liquid metal used, and also to the lowering of machining costs.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20301 - Mechanical engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Sborník přednášek XXIII. celosttní konference Výrova a vlastnosti oceli na odlitky a litiny

ISBN

978-80-02-02818-5

ISSN

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e-ISSN

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Number of pages

9

Pages from-to

76-84

Publisher name

Česká slévárenská společnost

Place of publication

Divadelní 6, 657 34 Brno

Event location

Svratka

Event date

Sep 5, 2018

Type of event by nationality

CST - Celostátní akce

UT code for WoS article

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