Metal founding – Process – Shaping liquid metal against a forming surface
Patent
1994-05-05
1997-12-16
Lin, Kuang Y.
Metal founding
Process
Shaping liquid metal against a forming surface
164319, 164360, B22C 908, B22D 1802, B22D 2711
Patent
active
056974221
ABSTRACT:
A vacuum die-casting machine has a sprue cavity with sufficient depth facing the shot cylinder that the shot cylinder piston can easily crush with a pressure of less than 1000 psi the thin cylindrical shell of solidified metal which develops into the biscuit, and continue to advance after the die cavity becomes fried with molten metal to inject additional molten metal into the die cavity to make up for shrinkage porosity as the cast part cools. The runner through which the molten metal passes from the sprue cavity into the die cavity has generally spherical reservoirs adjacent circular gates to further assure the supply of the additional molten metal to make up for shrinkage in the part. In addition, the piston can be oil cooled steel to delay formation of the biscuit.
REFERENCES:
patent: 2785448 (1957-03-01), Hodler
patent: 2932865 (1960-04-01), Bauer
patent: 3008202 (1961-11-01), Bauer
patent: 3270383 (1966-09-01), Hall et al.
patent: 3344848 (1967-10-01), Hall et al.
patent: 3685572 (1972-08-01), Carver et al.
patent: 3901306 (1975-08-01), Miki et al.
patent: 4059143 (1977-11-01), Morita et al.
patent: 4955426 (1990-09-01), Akimoto et al.
patent: 4997027 (1991-03-01), Akimoto
Arndt Eric D.
Fields James R.
Righi Jamal
Aluminum Company of America
Lin Kuang Y.
Trempus Thomas R.
Westerhoff Richard V.
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