HARDENING OF CASTING FROM THE CORE SIDE AT VERTICAL CONTINUOUS MOULDING

The problem of hardening of fusion in a crystallizer from a core side at vertical continuous molding is solved. It is established that hardening of casting from a core side proceeds in 7–10 time more slowly, than from a crystallizer. Influence of a core on the thermal mode of casting during her hard...

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Main Authors: E. I. Marukovich, E. B. Demchenko
Format: Article
Language:English
Published: Belarusian National Technical University 2016-08-01
Series:Литьë и металлургия
Subjects:
Online Access:https://lim.bntu.by/jour/article/view/1171
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author E. I. Marukovich
E. B. Demchenko
author_facet E. I. Marukovich
E. B. Demchenko
author_sort E. I. Marukovich
collection DOAJ
description The problem of hardening of fusion in a crystallizer from a core side at vertical continuous molding is solved. It is established that hardening of casting from a core side proceeds in 7–10 time more slowly, than from a crystallizer. Influence of a core on the thermal mode of casting during her hardening in a crystallizer during the first 15–20 with slightly, the core didn’t manage to get warm. Settlement thickness of a crust by 20th second of formation has made no more than 1,5 mm. When using thin-walled shell cores thickness of the crust formed on a core has made ξ = 2,0–2,5 mm or less than 10% of casting thickness. Use of continuous cores raises a share of the metal hardening on a core to 15–18%. In this case the coefficient of accumulation of heat a core is accepted equal ξ = 0,75–0,85.
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series Литьë и металлургия
spelling doaj-art-bf8d188629fe4ba3bdff106dbbed1ae52025-02-03T11:51:16ZengBelarusian National Technical UniversityЛитьë и металлургия1683-60652414-04062016-08-010224301165HARDENING OF CASTING FROM THE CORE SIDE AT VERTICAL CONTINUOUS MOULDINGE. I. Marukovich0E. B. Demchenko1Institute of Technology of Metals of the NAS of BelarusBelarusian National Technical UniversityThe problem of hardening of fusion in a crystallizer from a core side at vertical continuous molding is solved. It is established that hardening of casting from a core side proceeds in 7–10 time more slowly, than from a crystallizer. Influence of a core on the thermal mode of casting during her hardening in a crystallizer during the first 15–20 with slightly, the core didn’t manage to get warm. Settlement thickness of a crust by 20th second of formation has made no more than 1,5 mm. When using thin-walled shell cores thickness of the crust formed on a core has made ξ = 2,0–2,5 mm or less than 10% of casting thickness. Use of continuous cores raises a share of the metal hardening on a core to 15–18%. In this case the coefficient of accumulation of heat a core is accepted equal ξ = 0,75–0,85.https://lim.bntu.by/jour/article/view/1171continuous moldingkineticshardeningfusionwarmthcorecrustcastingtemperatureparabola exponent
spellingShingle E. I. Marukovich
E. B. Demchenko
HARDENING OF CASTING FROM THE CORE SIDE AT VERTICAL CONTINUOUS MOULDING
Литьë и металлургия
continuous molding
kinetics
hardening
fusion
warmth
core
crust
casting
temperature
parabola exponent
title HARDENING OF CASTING FROM THE CORE SIDE AT VERTICAL CONTINUOUS MOULDING
title_full HARDENING OF CASTING FROM THE CORE SIDE AT VERTICAL CONTINUOUS MOULDING
title_fullStr HARDENING OF CASTING FROM THE CORE SIDE AT VERTICAL CONTINUOUS MOULDING
title_full_unstemmed HARDENING OF CASTING FROM THE CORE SIDE AT VERTICAL CONTINUOUS MOULDING
title_short HARDENING OF CASTING FROM THE CORE SIDE AT VERTICAL CONTINUOUS MOULDING
title_sort hardening of casting from the core side at vertical continuous moulding
topic continuous molding
kinetics
hardening
fusion
warmth
core
crust
casting
temperature
parabola exponent
url https://lim.bntu.by/jour/article/view/1171
work_keys_str_mv AT eimarukovich hardeningofcastingfromthecoresideatverticalcontinuousmoulding
AT ebdemchenko hardeningofcastingfromthecoresideatverticalcontinuousmoulding