Abstract An inoculation body is cast or sintered with grains of a silicide in a matrix of a metal having a lower melting point than iron, such as aluminum, tin or zinc, in the shape of a main body having a flat bottom surface with a perpendicularly projecting peg or stem in the mid-portion of the bottom surface. The stem may be tapered slightly. Such an inoculation body is used by seating it on its flat bottom surface on a strainer grate core of a casting mold, with the stem or peg projection extending into a perforation of the strainer grate core. The flat bottom and the projection cooperate to maintain the inoculation body in its central position on the grate core during transportation of the mold to the pouring position, as well as during the pouring operation.
SHAPED BODY INOCULATION MEANS FOR INTRODUCING A SILICIDE ADDITIVE INTO AN IRON CASTING MELT CONSITING OF GRAINS OF SAID SILICIDE EMBEDDED IN A METAL HAVING A MELTING POINT LOWER THAN THAT OF IRON AND SHAPED IN A MAIN BODY AND PEG-LIKE PROJECTION MEANS EXTENDING OUTWARD THEREFROM FOR POSITIONING SAID BODY ON A PERFORATED STRAINER GRATE CORE WITH SAID PROJECTION IN A PERFORATION OF SAID CORE.
Claim 2
Dependent Claim
65 words
SHAPED BODY INOCULATION MEANS FOR INTRODUCING A SILICIDE ADDITIVE INTO AN IRON CASTING MELT CONSITING OF GRAINS OF SAID SILICIDE EMBEDDED IN A METAL HAVING A MELTING POINT LOWER THAN THAT OF IRON AND SHAPED IN A MAIN BODY AND PEG-LIKE PROJECTION MEANS EXTENDING OUTWARD THEREFROM FOR POSITIONING SAID BODY ON A PERFORATED STRAINER GRATE CORE WITH SAID PROJECTION IN A PERFORATION OF SAID CORE.
Claim 3
Dependent Claim
58 words
Shaped body inoculation means as defined in claim 1, in which said main body has a flat seating surface surrounding said projection and said projection extends outward in a direction perpendicular thereto, whereby said body may be seated by said flat surface resting on said grate core when said body is positioned by said projection thereon as aforesaid.
Claim 4
Dependent Claim
48 words
Shaped body inoculation means as defined in claim 2, in which said main body and said projection are of the same material having the grains of said silicide homogeneously dispersed in the bulk of said main body and projection in the said metal in which they are embedded.
Claim 5
Dependent Claim
37 words
Shaped body inoculation means as defined in claim 2, in which said projection is tapered down to a slightly smaller cross-section at its extremity from a larger cross-section at its base where it adjoins said main body.