Apparatus and method for controlling the countergravity casting

Details Apparatus and method for controlling the countergravity casting Apparatus and method for controlling the countergravity casting

1992-06-11

1993-06-01

Batten, Jr., J. Reed

Metal founding

Process

With measuring, testing, inspecting, or condition determination

164133, 1641471, 164155, 164337, 164500, B22D 1804, B22D 1808, B22D 3504

Patent

active

052151417

ABSTRACT:
A countergravity low-pressure casting apparatus (10) includes a feedback control system (98) which continuously measures the actual pressure of metal being pumped into a mold (12) and controls the voltage applied to an electromagnetic pump (66) to conform the actual metal pressure with the ideal metal pressure versus casting cycle time fill schedule (96).

REFERENCES:
patent: 3842893 (1974-10-01), Booth
patent: 3844331 (1974-10-01), Py et al.
patent: 3961662 (1976-06-01), Balevski et al.
patent: 4213494 (1980-07-01), Carbonnel
patent: 4585050 (1986-04-01), Merrien et al.
patent: 4714102 (1987-12-01), Koya
patent: 4741381 (1988-05-01), Nishida et al.
patent: 4860820 (1989-08-01), Pereira
patent: 4967827 (1990-11-01), Campbell

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