Using sol-gel component as additive to foundry coatings to improve casting quality

Ugochukwu Chibuzoh Nwaogu, T. Poulsen, B. Gravesen, Niels Skat Tiedje

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The improvement of foundry coatings to enhance performance is important. This paper investigates the effect of using sol‐gel component as an additive to foundry coatings applied on chemically bonded sand cores. Three parameters at three levels each were investigated using Taguchi experimental parameter design. The effects of the sol‐gel component on viscosity, density, °Baumé, core coverage and permeability are shown. Numerical simulations were used to predict defect areas. The thermal profiles of the core materials during casting were determined, and the surface quality of the castings was evaluated. The results show that the surface quality of castings obtained by adding the sol‐gel component to the coatings for cold box cores has no significant difference from castings produced with coatings without sol‐gel component. On the other hand, the addition of the sol‐gel component in coatings for furan cores showed significant improvement on the surface quality of the castings compared to that obtained without sol‐gel component.
Original languageEnglish
JournalInternational Journal of Cast Metals Research
Pages (from-to)176-187
ISSN1364-0461
DOIs
Publication statusPublished - 2012

Cite this

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title = "Using sol-gel component as additive to foundry coatings to improve casting quality",
abstract = "The improvement of foundry coatings to enhance performance is important. This paper investigates the effect of using sol‐gel component as an additive to foundry coatings applied on chemically bonded sand cores. Three parameters at three levels each were investigated using Taguchi experimental parameter design. The effects of the sol‐gel component on viscosity, density, °Baum{\'e}, core coverage and permeability are shown. Numerical simulations were used to predict defect areas. The thermal profiles of the core materials during casting were determined, and the surface quality of the castings was evaluated. The results show that the surface quality of castings obtained by adding the sol‐gel component to the coatings for cold box cores has no significant difference from castings produced with coatings without sol‐gel component. On the other hand, the addition of the sol‐gel component in coatings for furan cores showed significant improvement on the surface quality of the castings compared to that obtained without sol‐gel component.",
author = "Nwaogu, {Ugochukwu Chibuzoh} and T. Poulsen and B. Gravesen and Tiedje, {Niels Skat}",
year = "2012",
doi = "10.1179/1743133611Y.0000000038",
language = "English",
pages = "176--187",
journal = "International Journal of Cast Metals Research",
issn = "1364-0461",
publisher = "CRC Press/Balkema",

}

Using sol-gel component as additive to foundry coatings to improve casting quality. / Nwaogu, Ugochukwu Chibuzoh; Poulsen, T.; Gravesen, B.; Tiedje, Niels Skat.

In: International Journal of Cast Metals Research, 2012, p. 176-187.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Using sol-gel component as additive to foundry coatings to improve casting quality

AU - Nwaogu, Ugochukwu Chibuzoh

AU - Poulsen, T.

AU - Gravesen, B.

AU - Tiedje, Niels Skat

PY - 2012

Y1 - 2012

N2 - The improvement of foundry coatings to enhance performance is important. This paper investigates the effect of using sol‐gel component as an additive to foundry coatings applied on chemically bonded sand cores. Three parameters at three levels each were investigated using Taguchi experimental parameter design. The effects of the sol‐gel component on viscosity, density, °Baumé, core coverage and permeability are shown. Numerical simulations were used to predict defect areas. The thermal profiles of the core materials during casting were determined, and the surface quality of the castings was evaluated. The results show that the surface quality of castings obtained by adding the sol‐gel component to the coatings for cold box cores has no significant difference from castings produced with coatings without sol‐gel component. On the other hand, the addition of the sol‐gel component in coatings for furan cores showed significant improvement on the surface quality of the castings compared to that obtained without sol‐gel component.

AB - The improvement of foundry coatings to enhance performance is important. This paper investigates the effect of using sol‐gel component as an additive to foundry coatings applied on chemically bonded sand cores. Three parameters at three levels each were investigated using Taguchi experimental parameter design. The effects of the sol‐gel component on viscosity, density, °Baumé, core coverage and permeability are shown. Numerical simulations were used to predict defect areas. The thermal profiles of the core materials during casting were determined, and the surface quality of the castings was evaluated. The results show that the surface quality of castings obtained by adding the sol‐gel component to the coatings for cold box cores has no significant difference from castings produced with coatings without sol‐gel component. On the other hand, the addition of the sol‐gel component in coatings for furan cores showed significant improvement on the surface quality of the castings compared to that obtained without sol‐gel component.

U2 - 10.1179/1743133611Y.0000000038

DO - 10.1179/1743133611Y.0000000038

M3 - Journal article

SP - 176

EP - 187

JO - International Journal of Cast Metals Research

JF - International Journal of Cast Metals Research

SN - 1364-0461

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