Method for producing pressure die-cast or injection moulded articles using salt cores
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United States of America Patent
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-
Oct 1, 2002
Grant Date -
Nov 15, 2001
app pub date -
Oct 13, 1998
filing date -
Oct 14, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Method for producing pressure die-cast or injection moulded articles having a unit for producing salt grains, a press for forming salt filler cores by compressing the said salt grains, a pressure die-casting machine for making the said articles by injecting a material in the liquid state into a mould having at least one salt filler core, and a salt removal and washing unit designed to remove the salt filler cores that have been trapped within the said articles; the said unit for producing salt grains being designed to atomize a saline solution which is supersaturated with salt into a plurality of drops so as subsequently to cause the salt present in solution/suspension in each drop of solution to solidify into a corresponding salt grain.
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