This paper deals with the modelling of injection moulding processes taking into account the deformability of the preform and the polymerisation of the resin. The coupled flow– deformation problem in the infiltrated and dry region is formulated with the corresponding boundary conditions and with the proper evolution equations determining the motion of the boundaries. An approximated analytical d...

Correction for 'Moulding calixarenes for biomacromolecule targeting' by Marta Giuliani et al., Chem. Commun., 2015, 51, 14140-14159.

D. Novak, M. Stachowicz, K. Granat. Wroclaw University of Technology, Wroclaw, Poland The paper pr esents r esults of pr eliminary examinations of possibilit y t o measur e binder c ontent in traditional moulding sands using a new method employing electromagnetic waves. The presented examinations were carriedout with use of an innovative test station, the so-called microwave slot line. The meas...

Despite some pitfalls in the practical application of the gas assisted injection moulding (GAIM) process, it offers a number of advantages over conventional injection moulding. However, its inherent complexity requires an advanced control over several additional parameters. This study is preliminar to examine the gas void and its relation to channel geometry and processing conditions for differ...

The objective of this work is to study the influence of the moulding conditions of manufacture on the mechanical behaviour of the composites, when which they are submitted to mechanical loading. In order to evaluate the quality of interfacial adhesion, two non-destructive testing procedures were combined. Laser ultrasonic was employed to evaluate the state of the composite microstructure depend...

Currently, approximately 70-80 % of casting production of ferrous alloys is done with sands containing bentonite (green sands). Information on an amount of active bentonite in moulding sands, after shakeout of casting, is necessary in the rebounding process of bentonite sands – under real casting house conditions. It decides how much of fresh bentonite should be added to moulding sands, thereby...

B. Gal, K. Granat, D. Nowak, Wroclaw University of Technology, Department of Foundry Engineering, Plastics and Automation and Automation, Wrocław, Poland The presented basic research was aimed at determining a correlation between compaction degree of moulding sand and its permittivity εr at 2,45·10 9 s-1. The measurement results make a basis for mathematical description of a multilayer technolo...

This paper deals with the mathematical modeling of the coupled flow/deformation problem characterizing the industrial production of a composite material by injection moulding. The role of inertia, typically non–negligible during a short early time, is studied in terms of models of reduced complexity. Using the theory of characteristics and some considerations on the energy of the system we are ...

In this study, the Taguchi method is used to find the optimal process parameters for an injection moulding machine that was used to produce a consumer product (plastic tray) from polypropylene (PP) plastic material. An orthogonal array (OA), main effect, signal-to-noise (S/N) ratio, and analysis of variance (ANOVA) were employed to investigate the bending characteristics of the tray under a con...