Reclaimability of the spent sand mixture – sand with bentonite – sand with furfuryl resin

Journal Title: Archiwum Odlewnictwa - Year 2011, Vol 11, Issue 2

Abstract

Introduction of new binding materials and new technologies of their hardening in casting moulds and cores production requires the application of reclamation methods adequate to their properties as well as special devices realizing tasks. The spent sands circulation system containing the same kind of moulding and core sands is optimal from the point of view of the expected reclamation results. However, in the face of a significant variability of applied technologies and related to them various reclamation methods, the need - of the obtained reclamation products assessment on the grounds of systematic criteria and uniform bases – arises, with a tendency of indicating which criteria are the most important for the given sand system. The reclaimability results of the mixture of the spent moulding sand with Geko S bentonite and the spent core sand with the Kaltharz 404U resin hardened by acidic hardener 100 T3, are presented in the paper. Investigations were performed with regard to the estimation of an influence of core sands additions (10 –25%) on the reclaimed material quality. Dusts and clay content in the reclaim, its chemical reaction (pH) and ignition loss were estimated. The verification of the reclaim instrumental assessment was performed on the basis of the technological properties estimation of moulding sand with bentonite, where the reclaimed material was used as a matrix.

Authors and Affiliations

J. Dańko, R. Dańko

Keywords

Related Articles

Application of microjet in heat treatment of aluminium bronzes

Mechanical properties of a CuAl10Fe4Ni4 bronze subjected to solution heat treatment and toughening were examined. In solution heat treatment, a microjet was used to raise the cooling rate. A slight increase of mechanical...

Influence of pressure mould material on the durability of coating a thermal and anti-erosion barrier

This study presents the research results of the durability of coating (thermal and anti-erosion barrier) of a mincer cap casting pressure mould. Tests were conducted with the use of an IDRA OL320 pressure machine. Durabi...

Influence of cooling rate on delta morphology in cast Ni – base superalloy

The Ni – base superalloys, which are combined an unique physical and mechanical properties, are used in aircraft industry for production of aero engine most stressed parts, as are turbine blades. From this reason a dendr...

Verification of Modification Effect on Prototype Castings from GJV Using Ultrasound Checking

Reason for and risks of using of cast iron with vermicular graphite for typical construction parts. Ultrasound checking of graphite shape. Factors influencing plausibility of result. Difference between laboratory and ope...

Web based foundry knowledge base

The main assumptions and functions of proposed Foundry Knowledge Base (FKB) are presented in this paper. FKB is a framework for information exchange of casting products and manufacturing methods. We use CMS (Content Mana...

Download PDF file
  • EP ID EP72349
  • DOI -
  • Views 80
  • Downloads 0

How To Cite

J. Dańko, R. Dańko (2011). Reclaimability of the spent sand mixture – sand with bentonite – sand with furfuryl resin. Archiwum Odlewnictwa, 11(2), 13-18. https://europub.co.uk/articles/-A-72349