IMPLEMENTATION OF CORED WIRE TECHNOLOGY INTO PRODUCTION OF DUCTILE IRON FOR CASTINGS DESIGNATED FOR EXTREME CONDITIONS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F75081431%3A_____%2F22%3A00002964" target="_blank" >RIV/75081431:_____/22:00002964 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.confer.cz/metal/2022/4456-implementation-of-cored-wire-technology-into-production-of-ductile-iron-for-castings-designated-for-extreme-conditions" target="_blank" >https://www.confer.cz/metal/2022/4456-implementation-of-cored-wire-technology-into-production-of-ductile-iron-for-castings-designated-for-extreme-conditions</a>

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

IMPLEMENTATION OF CORED WIRE TECHNOLOGY INTO PRODUCTION OF DUCTILE IRON FOR CASTINGS DESIGNATED FOR EXTREME CONDITIONS

Popis výsledku v původním jazyce

Presented paper deals with the technology of production of ductile iron on industrial scale. Particularly, the material in question is EN-GJS-400-18-LT, which is suitable for castings intended for extreme conditions. Drawing on previous works, most attention has been paid to the implementation of the cored wire technology for modification and primary inoculation. Two technological options were compared, namely modification and primary inoculation by the pour method in the ladle and modification and primary inoculation by the cored wire using a twin-core feeder. Test samples within the inlet system of the moulds were cast during the pouring process to analyse the chemical composition, evaluate the microstructure and perform mechanical tests without interfering with the casting itself. The chemical composition was determined by optical emission spectrometry and combustion analysis. Metallographic analysis and microstructure evaluation were performed by optical microscopy and image analysis. Mechanical properties testing was focused on tensile test, impact test and hardness test. It was demonstrated that the foundry is capable of producing ductile iron of the required quality with the adoption of modern cored wire technology.

Název v anglickém jazyce

IMPLEMENTATION OF CORED WIRE TECHNOLOGY INTO PRODUCTION OF DUCTILE IRON FOR CASTINGS DESIGNATED FOR EXTREME CONDITIONS

Popis výsledku anglicky

Presented paper deals with the technology of production of ductile iron on industrial scale. Particularly, the material in question is EN-GJS-400-18-LT, which is suitable for castings intended for extreme conditions. Drawing on previous works, most attention has been paid to the implementation of the cored wire technology for modification and primary inoculation. Two technological options were compared, namely modification and primary inoculation by the pour method in the ladle and modification and primary inoculation by the cored wire using a twin-core feeder. Test samples within the inlet system of the moulds were cast during the pouring process to analyse the chemical composition, evaluate the microstructure and perform mechanical tests without interfering with the casting itself. The chemical composition was determined by optical emission spectrometry and combustion analysis. Metallographic analysis and microstructure evaluation were performed by optical microscopy and image analysis. Mechanical properties testing was focused on tensile test, impact test and hardness test. It was demonstrated that the foundry is capable of producing ductile iron of the required quality with the adoption of modern cored wire technology.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/FV40036" target="_blank" >FV40036: Výzkum a vývoj komplexní technologie výroby odlitků z vysoce jakostních tvárných litin</a><br>

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název statě ve sborníku

METAL 2022 Conference Proceedings

ISBN

—

ISSN

2694-9296

e-ISSN

—

Počet stran výsledku

884

Strana od-do

134-141

Název nakladatele

Tanger Ltd.

Místo vydání

OSTRAVA, CZECH REPUBLIC

Místo konání akce

Brno, CZECH REPUBLIC

Datum konání akce

18. 5. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

001235285500020