B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
340/102, 22/172,
B22D 17/32 (2006.01) B22D 17/14 (2006.01) B22D 17/22 (2006.01)
Patent
CA 1336642
A method and system is described for sensing an abnormality in a degassing flow path of a vacuum die casting machine. When a vacuum device is operated to degas a gas in a cavity of a mold, a gas speed flowing through a piping is detected. The gas speed thus detected is compared with the predetermined maximum proper air speed value to determine whether the maximum gas speed value falls into the tolerance limits of the maximum proper air speed value or not. In this comparison, when the detected value departs from the tolerance limits, it is regarded that a clogging has occurred in the degassing system and an alarm is issued.
603332
Iwamoto Norihiro
Tsuda Akihiko
Borden Ladner Gervais Llp
Toshiba Kikai Kabushiki Kaisha
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