Mould for the metallothermic welding of metal items

Details Mould for the metallothermic welding of metal items Mould for the metallothermic welding of metal items

1978-07-05

1980-02-26

Tillman, Murray

Static molds

Uniting preform with molding material

Rail or railway type preform

249 91, 249205, B22D 1904, B23K 2300

Patent

active

041902289

ABSTRACT:
A mould for use in a metallothermic welding process of at least two metal items together comprises at least two parts for arrangement around butts of each of the metal items to define a pouring cavity which is adapted to receive hot welding fluid. At least one of the faces of the mould, which in use will contact either a part of one of the items to be welded or another portion of the mould, defines a projection which presents sloping side towards the exterior of the pouring cavity. A strip of a compressible material which is little affected by heat is fitted on the projection in order to abut said part of one of the items or the other portion of the mould.

REFERENCES:
patent: 978346 (1910-12-01), Yarrow
patent: 1168062 (1916-01-01), Deppeler
patent: 1793047 (1931-02-01), Brewitt
patent: 2469062 (1949-05-01), Begtrup
patent: 3113359 (1963-12-01), Burke
patent: 3274650 (1966-09-01), Gelfand
patent: 3554270 (1971-01-01), Gelfand

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