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The molds are produced by a SEIATSU air-flow squeeze molding machine in two process steps: pre-compaction by compressed air and subsequent compaction by hydraulic squeezing.
The SEIATSU molding process is extremely compatible to the environment – noise level lower than 85 dB(A). This saves the ears of people employed in foundries.
Before covering the mold, the cores are set, the mold back is cut off and the boring for the sprue cup and, if required, for the feeder, the riser of the vents are made. |