Apparatus for controlled injection of a molten material under pr

Details Apparatus for controlled injection of a molten material under pr Apparatus for controlled injection of a molten material under pr

1976-01-28

1978-01-03

Reeves, Robert B.

Dispensing

With discharge assistant

Motor operated

91 27, 164155, 425146, B22D 3900

Patent

active

040661890

ABSTRACT:
A method of injecting a molten material such as molten metal or plasticizing resin under pressure and an apparatus performing the same wherein the piston speed of a cylinder for injecting the molten material is made to decrease before the mold cavity is filled up to the full with the molten material, thereby peak pressure generated in the molten material filled up to the full being eliminated and further pressure vibration occurred in a pressurized oil being obviated.

REFERENCES:
patent: 2526809 (1950-10-01), Cole
patent: 2921561 (1960-01-01), Sendoykas
patent: 3752363 (1973-08-01), Fegley
patent: 3857658 (1974-12-01), Muzsnay

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