Casting mold for aluminothermically welding rails together

Details Casting mold for aluminothermically welding rails together Casting mold for aluminothermically welding rails together

1979-08-17

1981-01-27

Baldwin, Robert D.

Static molds

Uniting preform with molding material

Rail or railway type preform

164 54, 164333, B22D 1904, B23K 2300

Patent

active

042470749

ABSTRACT:
This invention relates to a prefabricated casting mold for aluminothermically welding rail ends spaced apart by a gap while simultaneously welding shut a fishplate hole in the region of each rail end, comprising two mold halves which, when assembled, form a cavity adapted to enclose the rail ends and being so widened in the region of the rail web and in the longitudinal direction of the rails that the two fishplate holes are located within the cavity, a pair of riser channels in each mold half, at least one of the riser channels in each half issuing centrally into the rail base region of the casting mold cavity and having at least one means of communication with the casting mold cavity in the rail web region, and the other of the riser channels in each mold half communicating with the casting mold cavity in the vicinity of a fishplate hole.

REFERENCES:
patent: 2932863 (1960-04-01), Ahlert
patent: 3007217 (1961-11-01), Ahlert
patent: 3113359 (1963-12-01), Burke
patent: 3620291 (1971-11-01), Delachapelle
patent: 4190228 (1980-02-01), Bommart

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