Details

Title

Innovative Microwave Hardening of Water-Glass Containing Sandmixes in Technical-Economic Approach

Journal title

Archives of Foundry Engineering

Yearbook

2012

Numer

No 1

Publication authors

Keywords

Innovative foundry technologies ; Microwave hardening ; Water-glass ; Moulding and core sands

Divisions of PAS

Nauki Techniczne

Description

Archives of Foundry Engineering continues the publishing activity started by Foundry Commission of the Polish Academy of Sciences (PAN) in Katowice in 1978. The initiator of it was the first Chairman Professor Dr Eng. Wacław Sakwa – Corresponding Member of PAN, Honorary Doctor of Czestochowa University of Technology and Silesian University of Technology. This periodical first name was „Solidification of Metals and Alloys” , and made possible to publish the results of works achieved in the field of the Basic Problems Research Cooperation. The subject of publications was related to the title of the periodical and concerned widely understand problems of metals and alloys crystallization in a casting mold. In 1978-2000 the 44 issues have been published. Since 2001 the Foundry Commission has had patronage of the annually published “Archives of Foundry” and since 2007 quarterly published “Archives of Foundry Engineering”. Thematic scope includes scientific issues of foundry industry:

  • Theoretical Aspects of Casting Processes,
  • Innovative Foundry Technologies and Materials,
  • Foundry Processes Computer Aiding,
  • Mechanization, Automation and Robotics in Foundry,
  • Transport Systems in Foundry,
  • Castings Quality Management,
  • Environmental Protection.

Abstract

In recent years, an increasing interest in sandmixes containing inorganic binders has been observed. These binders, including water-glass, are harmless for the environment, neutral for humans, and relatively cheap. In spite of numerous advantages, their wide application is restricted by poor knock-out properties and problems related to rebonding. Therefore, numerous researches aimed at eliminating the disadvantages of water-glass binders are directed, among others, to modifying the structure of hydrated sodium silicate or to applying new hardening techniques. An innovative method of rapid hardening by microwave heating, permitting the restriction of the quantity of binder used and thus improving knock-out properties, meets the expectations of present-day foundries. In this paper, available information is compiled on microwave hardening of water-glass containing sandmixes; furthermore, the costs of practical application of this technology are evaluated on the grounds of the authors' own research.

Publisher

The Katowice Branch of the Polish Academy of Sciences

Date

2012

Type

Artykuły / Articles

Identifier

ISSN 2299-2944

References

Jelinek P. (2005), Development of inorganic binders for dehydratation microwave hardening, null. ; Lewandowski J. (1997), Materials for casting moulds. ; Baliński A. (2000), Selected problems of technology of moulding sands with inorganic binders. Structure of hydrated sodium silicate and its effect on binding of sandmixes. ; P Jelinek (2003), Strukturuntersuchungen und Festigkeitseigenschaften von Natrium-Silikat-Bindern, Giesserei-Praxis, 2, 51. ; Granat K. (2007), The influence of hardening method on basic properties of water glass molding sands, Visnik Chmel'nickogo Nacional'nogo Universitetu, 1, 4, 98. ; Granat K. (2010), Application of innovative microwave hardening method in manufacture of cast-steel castings for machine-building industry, Archives of Mechanical Engineering and Technology, 30, 1, 19. ; Stachowicz M. (2010), Studies on the possibility of more effective use of water glass thanks to application of selected methods of hardening, Archives of Foundry Engineering, 10, 2, 135. ; Stachowicz M. (2011), Influence of water-glass grade and quantity on residual strength of microwave-hardened moulding sands. Pt. 1, Archives of Foundry Engineering, 11, 1, 93. ; Granat K. (2009), Determination of application possibilities of microwave heating in the curing process of water glass molding sands with fluid esters. Pt. 1, Archives of Foundry Engineering, 9, 1, 45. ; Granat K. (2009), Determination of application possibilities of microwave heating in the curing process of water glass molding sands with fluid esters. Pt. 2, Archives of Foundry Engineering, 9, 1, 51. ; Stachowicz M. (2010), Application of microwaves for innovative hardening of proecological sandmixes with water-glass used in manufacture of cast-steel castings, Archives of Mechanical Engineering and Technology, 30, 1, 19. ; Retrieved 15.06.2011, from <a target="_blank" href='http://wichary.eu/'>http://wichary.eu/</a> ; Retrieved 15.06.2011, from <a target="_blank" href='http://www.lac.cz/produkty/katalogove-pece-susarny/prumyslove-pece-susarny-plastikarstvi-gumarenstvi-povrchove-/nizkoteplotni-pece-susarny-komorove-zavazecim-vozikem-sv/'>http://www.lac.cz/produkty/katalogove-pece-susarny/prumyslove-pece-susarny-plastikarstvi-gumarenstvi-povrchove-/nizkoteplotni-pece-susarny-komorove-zavazecim-vozikem-sv/</a> ; Strumps E. (2009), Den anorganischen Bindersystemen gehört Zukunft, Giesserei, 7, 59.

DOI

10.2478/v10266-012-0015-z

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