Molten metal pouring pipe for pressure-casting machine

Details Molten metal pouring pipe for pressure-casting machine Molten metal pouring pipe for pressure-casting machine

1993-05-17

1994-07-19

Bradley, Paula A.

Metal founding

Means to shape metallic material

Pressure shaping means

164337, 222591, 222603, B22D 1706, B22D 4150

Patent

active

053299876

ABSTRACT:
A pressure-casting machine that contains a delivery system, which comprises: a molten metal pouring pipe made of a refractory, having a length of at least 4 m and an outside diameter of at least 350 mm, and arranged such that an upper end thereof is attached substantially vertically from below to an opening in a bottom wall of a mold for a pressure-casting machine, and a lower end thereof extends through a lid of a closed vessel arranged below the mold and is immersed into molten metal received in a ladle arranged in the closed vessel. The molten metal pouring pipe comprises at least two pipe sections connected to each other in series and in a liquid-tight manner by means of a threaded joint, tapered surfaces provided with screw threads of which have an inclination angle within a range of from 2.0.degree. to 15.0.degree. relative to the center axis of the molten metal pouring pipe.

REFERENCES:
patent: 3395840 (1968-08-01), Gardner
patent: 3673039 (1972-06-01), Todd
patent: 5151200 (1992-09-01), Stephansky

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