Method and apparatus for uphill casting with a slide valve...

Details Method and apparatus for uphill casting with a slide valve... Method and apparatus for uphill casting with a slide valve...

2005-08-16

2005-08-16

Lin, Kuang Y. (Department: 1725)

Metal founding

Process

Shaping liquid metal against a forming surface

C164S306000

Reexamination Certificate

active

06929052

ABSTRACT:
A method for uphill casting/low-pressure casting, especially of light metal alloys, with a casting furnace lying below a casting table, having a riser pipe and a mouth opening of the riser pipe and having a mould with an underlying pouring-in opening and having a slide valve closure, forming a flow-through channel which for casting takes on a substantially straight, longitudinal course, wherein for shut-off in the slide valve closure, two opening sections of the flow-through channel directly adjacent one to the other are displaced with respect to one another transversely to the longitudinal course of the flow-through channel directly after casting with still liquid melt in the pouring-in opening, so that an overlying opening section remains in open communication with the pouring-in opening free from undercut and an underlying opening section remains in open communication with the mouth opening of the riser pipe, wherein the opening sections are completely offset with respect to each other.

REFERENCES:
patent: 3529753 (1970-09-01), Mack
patent: 3627018 (1971-12-01), Costello et al.
patent: 3905419 (1975-09-01), Tenner
patent: 3980125 (1976-09-01), Portalier
patent: 5524700 (1996-06-01), Gosch
patent: 26 46 187 (1978-04-01), None
patent: 207675 (1993-05-01), None
patent: 61-3653 (1986-01-01), None
patent: 1-241352 (1989-09-01), None
patent: WO 02/04148 (2002-01-01), None

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