Semi-solid forming consists of injecting a metal under high pressure which has been heated until it attains a semi-solid/semi-liquid state. Operating in this temperature range, the method, when correctly applied, makes full use of the thixotropic properties of the metal and improves the quality of the finished part. Induction heating is the ideal method for this application in respect to its rapidity, repeatability and homogeneity of temperature obtained thanks to individual re-heating.
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Fives Celes has designed and manufactured a ingot transfer system right up to the injection chamber (patented process). This process is suitable for use with all thixotropic alloys and in particular with magnesium which may be treated without the need for special safety measures. |
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Mains advantages are :
Elimination of porosity in moulded parts (turbulence is eliminated),
Adaptable to all types of injection-moulding machines,
Transfer of ingots in horizontal position without distortion and material wastage,
Energy saving since it is sufficient to heat instead of melting
Rapid heating.