Development of Universal Mould Geometry for the Teeming of Cylindrical Iron-Base Alloy Ingots

Development of Universal Mould Geometry for the Teeming of Cylindrical Iron-Base Alloy Ingots

The presented work is aimed at developing a mould geometry suitable for casting both low- and high-alloy steel grades into 500 kg experimental ingots. The high Height-to-Diameter (H/D)-ratio mould currently used in COMTES FHT Inc. served as a reference and for finite element method simulations (FEM)...

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Bibliographic Details
Main Authors: Josef Odehnal, Pavel Ludvík, Tomáš Studecký, Pavel Michálek
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Metals
Subjects:
mould
iron-base alloy
steel
34CrNiMo6
DHQ8
CB2
Online Access:https://www.mdpi.com/2075-4701/11/3/471
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spelling doaj-8570ccff86c24dd9b61a846492256bcc2021-03-13T00:05:30ZengMDPI AGMetals2075-47012021-03-011147147110.3390/met11030471Development of Universal Mould Geometry for the Teeming of Cylindrical Iron-Base Alloy IngotsJosef Odehnal0Pavel Ludvík1Tomáš Studecký2Pavel Michálek3Department of Material Science and Technology, Faculty of Mechanical Engineering, University of West Bohemia, UWB Plzeň, Univerzitní 22, Pilsen 301 00, Czech RepublicCOMTES FHT Inc., Průmyslová 995, Dobřany 334 41, Czech RepublicCOMTES FHT Inc., Průmyslová 995, Dobřany 334 41, Czech RepublicCOMTES FHT Inc., Průmyslová 995, Dobřany 334 41, Czech RepublicThe presented work is aimed at developing a mould geometry suitable for casting both low- and high-alloy steel grades into 500 kg experimental ingots. The high Height-to-Diameter (H/D)-ratio mould currently used in COMTES FHT Inc. served as a reference and for finite element method simulations (FEM) of the filling and solidification process. The optimized mould geometry, balancing the porosity and segregations, was determined using MAGMA software. Four different steel grades were defined for the simulation. Case studies were carried out for 34CrNiMo6 (W.Nr. 1.6582), DHQ8, CB2 and borated stainless steel grades ranging from low-alloy steel to high-alloy steel. Extended user-defined criteria and verified boundary conditions were used to predict the formation of A-segregations in cast steel. Both primary (PDAS) and secondary (SDAS) arm spacings were modelled as well. The optimized mould shape and the casting assembly were designed based on the simulation results.https://www.mdpi.com/2075-4701/11/3/471mouldiron-base alloysteel34CrNiMo6DHQ8CB2
collection DOAJ
language English
format Article
sources DOAJ
author Josef Odehnal
Pavel Ludvík
Tomáš Studecký
Pavel Michálek
spellingShingle Josef Odehnal
Pavel Ludvík
Tomáš Studecký
Pavel Michálek
Development of Universal Mould Geometry for the Teeming of Cylindrical Iron-Base Alloy Ingots
Metals
mould
iron-base alloy
steel
34CrNiMo6
DHQ8
CB2
author_facet Josef Odehnal
Pavel Ludvík
Tomáš Studecký
Pavel Michálek
author_sort Josef Odehnal
title Development of Universal Mould Geometry for the Teeming of Cylindrical Iron-Base Alloy Ingots
title_short Development of Universal Mould Geometry for the Teeming of Cylindrical Iron-Base Alloy Ingots
title_full Development of Universal Mould Geometry for the Teeming of Cylindrical Iron-Base Alloy Ingots
title_fullStr Development of Universal Mould Geometry for the Teeming of Cylindrical Iron-Base Alloy Ingots
title_full_unstemmed Development of Universal Mould Geometry for the Teeming of Cylindrical Iron-Base Alloy Ingots
title_sort development of universal mould geometry for the teeming of cylindrical iron-base alloy ingots
publisher MDPI AG
series Metals
issn 2075-4701
publishDate 2021-03-01
description The presented work is aimed at developing a mould geometry suitable for casting both low- and high-alloy steel grades into 500 kg experimental ingots. The high Height-to-Diameter (H/D)-ratio mould currently used in COMTES FHT Inc. served as a reference and for finite element method simulations (FEM) of the filling and solidification process. The optimized mould geometry, balancing the porosity and segregations, was determined using MAGMA software. Four different steel grades were defined for the simulation. Case studies were carried out for 34CrNiMo6 (W.Nr. 1.6582), DHQ8, CB2 and borated stainless steel grades ranging from low-alloy steel to high-alloy steel. Extended user-defined criteria and verified boundary conditions were used to predict the formation of A-segregations in cast steel. Both primary (PDAS) and secondary (SDAS) arm spacings were modelled as well. The optimized mould shape and the casting assembly were designed based on the simulation results.
topic mould
iron-base alloy
steel
34CrNiMo6
DHQ8
CB2
url https://www.mdpi.com/2075-4701/11/3/471
work_keys_str_mv AT josefodehnal developmentofuniversalmouldgeometryfortheteemingofcylindricalironbasealloyingots
AT pavelludvik developmentofuniversalmouldgeometryfortheteemingofcylindricalironbasealloyingots
AT tomasstudecky developmentofuniversalmouldgeometryfortheteemingofcylindricalironbasealloyingots
AT pavelmichalek developmentofuniversalmouldgeometryfortheteemingofcylindricalironbasealloyingots
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