Carburization, melting and dripping of iron through coke bed

Minsoo Shin, Joon Seok Oh, Joonho Lee

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The carburizing, melting, and dripping behavior of iron through graphite and coke beds was investigated by an in-situ observation technique with increasing temperature from room temperature to 1 773 K. An iron sample placed on the graphite bed was fully melted at 1 490 K, whereas that on the coke bed was not melted at 1 773 K. From the microscopic analysis of the sample after experiments, it was revealed that solid ash formed at the metal-coke interface prevented the carburization and melting of the iron sample. In order to examine the role of gangue and flux materials in sinter, iron samples mixed with slag powders at different weight fractions (15, 30, and 50 wt%) were prepared and similar experiments were carried out. The sample containing 15 wt% slag powders was not melted, but the samples containing 30 and 50 wt% slag powders were carburized and fully melted at 1 773 K after holding the sample at that temperature for 342 and 37 s, respectively. It was considered that the liquid slag absorbed solid ash formed at the coke surface, yielding carburization and melting of the iron.

Original languageEnglish
Pages (from-to)2056-2063
Number of pages8
JournalISIJ International
Volume55
Issue number10
DOIs
Publication statusPublished - 2015

Fingerprint

Coke
Melting
Iron
Slags
Powders
Graphite
Coal ash
Carburizing
Temperature
Metals
Experiments
Fluxes
Liquids

Keywords

  • Carburization
  • Coke
  • Dripping
  • Melting
  • Solid iron

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Carburization, melting and dripping of iron through coke bed. / Shin, Minsoo; Oh, Joon Seok; Lee, Joonho.

In: ISIJ International, Vol. 55, No. 10, 2015, p. 2056-2063.

Research output: Contribution to journalArticle

Shin, Minsoo ; Oh, Joon Seok ; Lee, Joonho. / Carburization, melting and dripping of iron through coke bed. In: ISIJ International. 2015 ; Vol. 55, No. 10. pp. 2056-2063.
@article{eb5a5fc18c1946d08e1d1b5d50bf7e74,
title = "Carburization, melting and dripping of iron through coke bed",
abstract = "The carburizing, melting, and dripping behavior of iron through graphite and coke beds was investigated by an in-situ observation technique with increasing temperature from room temperature to 1 773 K. An iron sample placed on the graphite bed was fully melted at 1 490 K, whereas that on the coke bed was not melted at 1 773 K. From the microscopic analysis of the sample after experiments, it was revealed that solid ash formed at the metal-coke interface prevented the carburization and melting of the iron sample. In order to examine the role of gangue and flux materials in sinter, iron samples mixed with slag powders at different weight fractions (15, 30, and 50 wt{\%}) were prepared and similar experiments were carried out. The sample containing 15 wt{\%} slag powders was not melted, but the samples containing 30 and 50 wt{\%} slag powders were carburized and fully melted at 1 773 K after holding the sample at that temperature for 342 and 37 s, respectively. It was considered that the liquid slag absorbed solid ash formed at the coke surface, yielding carburization and melting of the iron.",
keywords = "Carburization, Coke, Dripping, Melting, Solid iron",
author = "Minsoo Shin and Oh, {Joon Seok} and Joonho Lee",
year = "2015",
doi = "10.2355/isijinternational.ISIJINT-2015-115",
language = "English",
volume = "55",
pages = "2056--2063",
journal = "ISIJ International",
issn = "0915-1559",
publisher = "Iron and Steel Institute of Japan",
number = "10",

}

TY - JOUR

T1 - Carburization, melting and dripping of iron through coke bed

AU - Shin, Minsoo

AU - Oh, Joon Seok

AU - Lee, Joonho

PY - 2015

Y1 - 2015

N2 - The carburizing, melting, and dripping behavior of iron through graphite and coke beds was investigated by an in-situ observation technique with increasing temperature from room temperature to 1 773 K. An iron sample placed on the graphite bed was fully melted at 1 490 K, whereas that on the coke bed was not melted at 1 773 K. From the microscopic analysis of the sample after experiments, it was revealed that solid ash formed at the metal-coke interface prevented the carburization and melting of the iron sample. In order to examine the role of gangue and flux materials in sinter, iron samples mixed with slag powders at different weight fractions (15, 30, and 50 wt%) were prepared and similar experiments were carried out. The sample containing 15 wt% slag powders was not melted, but the samples containing 30 and 50 wt% slag powders were carburized and fully melted at 1 773 K after holding the sample at that temperature for 342 and 37 s, respectively. It was considered that the liquid slag absorbed solid ash formed at the coke surface, yielding carburization and melting of the iron.

AB - The carburizing, melting, and dripping behavior of iron through graphite and coke beds was investigated by an in-situ observation technique with increasing temperature from room temperature to 1 773 K. An iron sample placed on the graphite bed was fully melted at 1 490 K, whereas that on the coke bed was not melted at 1 773 K. From the microscopic analysis of the sample after experiments, it was revealed that solid ash formed at the metal-coke interface prevented the carburization and melting of the iron sample. In order to examine the role of gangue and flux materials in sinter, iron samples mixed with slag powders at different weight fractions (15, 30, and 50 wt%) were prepared and similar experiments were carried out. The sample containing 15 wt% slag powders was not melted, but the samples containing 30 and 50 wt% slag powders were carburized and fully melted at 1 773 K after holding the sample at that temperature for 342 and 37 s, respectively. It was considered that the liquid slag absorbed solid ash formed at the coke surface, yielding carburization and melting of the iron.

KW - Carburization

KW - Coke

KW - Dripping

KW - Melting

KW - Solid iron

UR - http://www.scopus.com/inward/record.url?scp=84983329144&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84983329144&partnerID=8YFLogxK

U2 - 10.2355/isijinternational.ISIJINT-2015-115

DO - 10.2355/isijinternational.ISIJINT-2015-115

M3 - Article

AN - SCOPUS:84983329144

VL - 55

SP - 2056

EP - 2063

JO - ISIJ International

JF - ISIJ International

SN - 0915-1559

IS - 10

ER -