Analysis of selected technological properties of green sands with starch-based additives

Authors

  • Dariusz Drożyński AGH University of Science and Technology, Faculty of Foundry Engineering, Krakow,
  • Żaneta Kurleto AGH University of Science and Technology, Faculty of Foundry Engineering, Krakow,
  • Karolina Kaczmarska AGH University of Science and Technology, Faculty of Foundry Engineering, Krakow,
  • Beata Grabowska AGH University of Science and Technology, Faculty of Foundry Engineering, Krakow,

DOI:

https://doi.org/10.7494/mafe.2015.41.2.65

Keywords:

green sand system, starch additives, green compressive strength, permeability, wear resistance

Abstract

The paper presents the results of determination the effect of addition native starch and mineral-starch mixes on selected technological properties of sands. Study was carried out on permeability, compressive strength and wear resistance of molding. Green sand with bentonite and silica sand was compared with green sand with addition Superior Standard native starch or addition of mineral-starch composition in form of binder Albertine F/1.

The main difference in applied starch materials is characteristic property of native starch, which is un-soluble in cold water, so in this case it was difficult to bond water added to the moulding sand during mixing of ingredients. However Albertine F/1 starch-based binder is mixture of starch and aluminosilicates, whereby the bonding of water added into moulding sand during ingredients mixing is more efficient.

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Author Biographies

Dariusz Drożyński, AGH University of Science and Technology, Faculty of Foundry Engineering, Krakow,

Faculty of Foundry Engineering,

Department of Moulding Materials, Mould Technology and Cast Non-Ferrous Metals; Ph.D.

Żaneta Kurleto, AGH University of Science and Technology, Faculty of Foundry Engineering, Krakow,

Faculty of Foundry Engineering; Eng.

Karolina Kaczmarska, AGH University of Science and Technology, Faculty of Foundry Engineering, Krakow,

Faculty of Foundry Engineering
Department of Engineering of Foundry Processes; MSc.

Beata Grabowska, AGH University of Science and Technology, Faculty of Foundry Engineering, Krakow,

Faculty of Foundry Engineering
Department of Engineering of Foundry Processes; Ph.D.

References

Lewandowski J.L.: Tworzywa na formy odlewnicze. Kraków, Wydawnictwo Naukowe AKAPIT, 1997

Zhou X., Yang J., Qian F., Qu G. Synthesis and Application of Modified Starch as a Shell–Core Main Adhesive in a Foundry, J. Appl. Polym. Sci., 116(2010) 2893–2900.

Grabowska B.: Nowe spoiwa polimerowe w postaci wodnych kompozycji z udziałem poli(kwasu akrylowego) lub jego soli i modyfikowanego biopolimeru. Kraków, Wydawnictwo Naukowe AKAPIT, 2013

Kaczmarska K., Grabowska B.: Analysis of structural changes in the starch-based binder cross-linked by physical agents. Archives of Foundry Engineering, 13 (2013), 51–56

Kaczmarska K., Grabowska B., Drożyński D.: Analysis of the selected properties of microwave-cured moulding sands with starch-based binders. Archives of Foundry engineering, 14 (2014), 51-52

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Published

2015-11-18

How to Cite

Drożyński, D., Kurleto, Żaneta, Kaczmarska, K., & Grabowska, B. (2015). Analysis of selected technological properties of green sands with starch-based additives. Metallurgy and Foundry Engineering, 41(2), 65. https://doi.org/10.7494/mafe.2015.41.2.65

Issue

Vol. 41 No. 2 (2015)

Section

Articles

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