Apparatus for treating molten cast iron

Details Apparatus for treating molten cast iron Apparatus for treating molten cast iron

1981-03-18

1983-11-01

Lin, Kuang Y.

Metal founding

Means to shape metallic material

United particle type shaping surface

164 581, B22D 2700

Patent

active

044125780

ABSTRACT:
It is known to contact molten cast iron with various treating agents in the casting mold in order to influence the base structure or the form of the graphite. Such casting molds for making castings of cast iron containing vermicular and/or spheroidal graphite are provided with an intermediate chamber, which is provided in the pouring system between the pouring gate and the ingate to the casting mold proper. That intermediate chamber serves to receive the graphitizing agent and to contact it with the molten cast iron. To permit a functional adaptation of the chamber surface area or the surface area of the treating agent contained in the chamber to the pouring gate, which changes as the pouring proceeds, the casting mold is provided with a frustopyramidal intermediate chamber which has a rectangular base disposed in the parting plane of the mold.

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