Combined ultra slow electron beam and vacuum arc melting for bar

Details Combined ultra slow electron beam and vacuum arc melting for bar Combined ultra slow electron beam and vacuum arc melting for bar

1987-12-18

1989-07-18

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 1023, 75 49, 75 65EB, C22B 400, C21C 552

Patent

active

048490164

ABSTRACT:
This is a process for making a very pure and very homogeneous zirconium material for use in lining the interior of zirconium alloy fuel element cladding. The improvement utilizes the forming of consumable feed material from generally virgin sponge material, melting the consumable feed material in a multiple swept beam electron beam furnace with a feed rate generally between 0.1 and less than about 1.0 inch per hour and then vacuum arc melting the EB melted material.

REFERENCES:
patent: 2942098 (1960-06-01), Smith
patent: 3764297 (1973-10-01), Coad
patent: 4108644 (1978-08-01), Walberg
patent: 4190404 (1980-02-01), Drs
patent: 4200492 (1980-04-01), Armijo
patent: 4368072 (1983-01-01), Siddall
patent: 4372817 (1983-02-01), Armijo

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