DC Electric arc furnace melt connection

Details DC Electric arc furnace melt connection DC Electric arc furnace melt connection

1977-04-26

1978-07-11

Envall, Jr., R. N.

H05B 702

Patent

active

041003640

ABSTRACT:
A DC electric arc furnace melt connection of the type formed by a metal connector with an inner end melted by the melt and an outer end kept solid by cooling, extends from the furnace hearth at a declination straight and free from curvature and with a uniform and constant cross-sectional area from end to end having a rectangular oblong cross sectional shape with the long sides extending in a horizontal direction. The purpose is to reduce the flow currents normally formed by gas bubbles and electrodynamic effects within the melted portion of the connector and which cause the melted part to wipe over the unmelted part of the connector with the undesirable result of promoting heat exchange between the two parts.

REFERENCES:
patent: 3835230 (1974-09-01), Valchev et al.
patent: 3997712 (1976-12-01), Stenkvist
patent: 3999000 (1976-12-01), Stenkvist

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