Decompression kneader
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Apr 27, 2021
Grant Date -
May 2, 2019
app pub date -
Oct 22, 2018
filing date -
Oct 22, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Provided is a decompression kneader capable of stabilizing a moisture content of resultant kneaded sand. The decompression kneader includes a kneader main body configured to knead casting sand and water, a decompression pump configured to reduce a pressure inside the kneader main body, a condenser configured to condense water vapor sucked by the decompression pump, a tank configured to store water condensed by the condenser, and a supply amount calculation apparatus configured to calculate an amount of water supplied from the tank to the kneader main body. The tank comprises a water gauge and a weighing scale, and the supply amount calculation apparatus estimates an amount of the casting sand contained in the tank based on measured values of the water gauge and the weighing scale and corrects the amount of the water supplied from the tank with reference to the amount of the casting sand.
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