Abstract
Until now, the mould sand in general use in the foundry industry are based on bentonite, which resulted from the fact that a good recognition properties and phenomena associated with this material. Come to know and normalized content of montmorillonite and carbonates and their important role in the construction of bentonite, and mass properties of the participation of compressive strength or scatter. Halloysite is widely used in industry and beyond them. However, little is known about its use in the foundry in Poland and abroad. This article presents preliminary research conducted at the Foundry Department of Silesian University of Technology on this material. Will raise the question of the representation of this two materials, which contains information connected with history and formation of materials, their structure and chemical composition. In the research, the results of compressive strength tests in wet masses of quartz matrix, where as a binder is used halloysite and bentonite in different proportions.
Highlights
To best characterize today's foundry would say that it is a developing and continually improve industry, which strive for develop better and more modern moulding materials and modern lines.To live up to the increasing demand for castings were invented automatic processing lines, which are used in mass production
The aim of this study is analyze the compressive strength of the masses where the bentonite and halloysite is used as a binder
In the standard masses can be observed that the strength of bentonite mass as a decreases function of time reflecting the decline in the strength of the border of the binder-matrix, the inverse tendency can be observed in a halloysite mass, whose strength increases, it can be seen that after 24 the strength of the two masses are comparable (0.063÷0.067 MPa)
Summary
To best characterize today's foundry would say that it is a developing and continually improve industry, which strive for develop better and more modern moulding materials and modern lines. To live up to the increasing demand for castings were invented automatic processing lines, which are used in mass production. Their use greatly contributes to: increase productivity, reduce staff, increased safety (using the existing OSH), reduce energy consumption and reduce the cost of the finished product [1]. Automation in the previous period concerned the processes related mainly to the implementation of form, the early arrangements are known as automatic molding lines (ALF). The paper is an attempt to assess the suitability of halloysite for making moulds and/or foundry core in mainly used for automatic moulding line
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