ANALYSIS OF GATING AND FEEDING SYSTEMS FOR CASTING OF STREET INLETS WITH AND WITHOUT THE PROCESS OF FILTRATION

On the example of a street inlet casting, the metal flow in the gating system on entering the mould cavity and inside the mould was depicted. The effect of the technique by which the metal is fed into the mould cavity on the final properties of castings was examined. Special attention has been paid to the correct process of air evacuation from the mould cavity and to the effect of metal mixing with air as a result of the feeding technique, i.e. the design of the ingates. The analysis was performed for the traditional gating system, and also for the system using filters.

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