Production of a Heavy Section Ductile Iron Grinding Table

Production process of an extra-large ductile iron grinding table with weight of 142 t was introduced in the present paper. Solidification process of the grinding table was simulated with finite element software ProCAST. Defects, especially porosity, of the casting during solidification were predicte...

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Autores principales: Ming You, Xiaogang Diao
Formato: Artículo
Lenguaje:Inglés
Publicado: INTEMA - UNMdP-CONICET 2014
Acceso en línea:10 Th International Symposium on the Science and Processing of Cast Iron. 2014. Argentina: Mar del Plata 10 to 13th of November.
Aporte de:
RINFI - Facultad de Ingeniería (UNLdP) de Universidad Nacional de Mar del Plata (UNMdP)
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record_format ojs
institution Universidad Nacional de Mar del Plata (UNMdP)
institution_str I-29
repository_str R-182
container_title_str RINFI - Facultad de Ingeniería (UNLdP)
language Inglés
format Artículo
author Ming You
Xiaogang Diao
spellingShingle Ming You
Xiaogang Diao
Production of a Heavy Section Ductile Iron Grinding Table
author_facet Ming You
Xiaogang Diao
author_sort Ming You
title Production of a Heavy Section Ductile Iron Grinding Table
title_short Production of a Heavy Section Ductile Iron Grinding Table
title_full Production of a Heavy Section Ductile Iron Grinding Table
title_fullStr Production of a Heavy Section Ductile Iron Grinding Table
title_full_unstemmed Production of a Heavy Section Ductile Iron Grinding Table
title_sort production of a heavy section ductile iron grinding table
description Production process of an extra-large ductile iron grinding table with weight of 142 t was introduced in the present paper. Solidification process of the grinding table was simulated with finite element software ProCAST. Defects, especially porosity, of the casting during solidification were predicted and hence casting process optimization has been performed based on the simulation results. In manufacturing period of the ductile iron grinding table, the following measures were adopted to avoid casting defects and improve its mechanical properties. Firstly, bottom-gated gating system was used. Secondly, chills were set on the heavy section locations. Thirdly, risers were set on the top of the casting. Besides, chemical composition was strictly controlled and raw materials with fewer impurities were used. More than 150 t molten melt was supplied using medium frequency induction furnaces. Cored wire injection nodularizing and inoculation was performed at 1360～1380℃ by two ladles with capacity of 75 t. Post–inoculation was conducted during pouring as well as low temperature and fast pouring process was adopted. The qualified heavy section ductile iron grinding table product can thus be obtained. Shrinkage and porosity was evidently decreased at thermal center of the casting. The result of casting inspection showed that mechanical properties of the casting met the requirements of EN-GJS-400-15U grade nodular iron and the UT detection didn't find any casting defect exceeding grade 3 according to EN 12680-3-2003.
publisher INTEMA - UNMdP-CONICET
publishDate 2014
url 10 Th International Symposium on the Science and Processing of Cast Iron. 2014. Argentina: Mar del Plata 10 to 13th of November.
work_keys_str_mv AT mingyou productionofaheavysectionductileirongrindingtable
AT xiaogangdiao productionofaheavysectionductileirongrindingtable
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