Method of manufacturing a casting nozzle brick

Details Method of manufacturing a casting nozzle brick Method of manufacturing a casting nozzle brick

1984-04-20

1986-01-14

Czaja, Donald

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264 66, 2643281, B29D 2304

Patent

active

045644934

ABSTRACT:
A composition of flake graphite, binder clay and a refractory material is extruded from an auger machine into a mold to form a cylindrical graphitic casting nozzle brick. The mold includes a coaxial core terminating short of an extrusion die of the auger machine, so that the graphitic casting nozzle brick as extruded has a longitudinal bore with one end closed, with transverse holes being subsequently defined through the nozzle brick across the bore adjacent to the closed end. As an alternative, a coaxial core may be connected to an extrusion screw of the auger machine to define an axial through bore in the casting nozzle brick as the latter is extruded.

REFERENCES:
patent: 4256686 (1981-03-01), Froschauer
patent: 4362495 (1982-12-01), Naito
patent: 4364783 (1982-12-01), Theodore
patent: 4373895 (1983-02-01), Yamamoto

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