Method of and apparatus for making compound rolls

Details Method of and apparatus for making compound rolls Method of and apparatus for making compound rolls

1974-11-29

1976-08-03

Shore, Ronald J.

Metal founding

Process

Shaping liquid metal against a forming surface

164 95, 164252, 164332, B22D 2702

Patent

active

039723666

ABSTRACT:
A method of making a compound roll of the type having a shell portion of a material that has a high hardness and wear resistance and a core portion forming the center core and neck sections of a material that has a low alloy content and a relatively low hardness so as to be highly resistant to breakage, which method comprises the steps of precasting the shell portion in the form of a hollow cylinder having the desired external and thickness dimensions, setting the shell portion on top of a neck forming mold section with the longitudinal axes of the shell portion and the mold section extending vertically, positioning an electrode of an electro-slag melting unit within the interior of the shell portion and the neck mold section, the electrode being made of material which in the remelted and subsequent resolidified condition will have the desired properties for the center core and neck sections, and passing electric current through the electrode to cause melting thereof to progressively fill the mold section and the interior of said shell portion.

REFERENCES:
patent: 1132611 (1915-03-01), Osler
patent: 3603374 (1971-09-01), Cooper
patent: 3670800 (1972-06-01), DeVos
Dugan, John M., "Roll Specifications For Finishing Stands of a Modern Continuous Hot Strip Mill", Mar., 1970.

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