Multiple die casting machines with single vacuum source

Metal founding – Process – With measuring – testing – inspecting – or condition determination

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164 41, 164 61, 164 63, 164113, 164253, 164254, 164305, B22D 1714, B22D 1732

Patent

active

061489026

ABSTRACT:
A vacuum die casting system has three die casting machines connected to a single vacuum system, all of which is controlled by a programmable logic controller. The controller allows any two of the machines to be operatively connected to the vacuum system so that the casting operation of those two machines are performed under vacuum. The controller comprises six address relays, a sixteen channel input card, a processor, a sixteen channel output card, an interface and two high speed counter cards. The result is an efficient, reliable, and economical vacuum die casting system.

REFERENCES:
patent: 4055216 (1977-10-01), Ulyanov et al.
patent: 4129164 (1978-12-01), Torikai
patent: 5219409 (1993-06-01), Campbell et al.
patent: 5269362 (1993-12-01), Yamashita
patent: 5343933 (1994-09-01), Schneider et al.
patent: 5379826 (1995-01-01), Miwa et al.
patent: 5511605 (1996-04-01), Iwamoto

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