Plasma melting furnace

Details Plasma melting furnace Plasma melting furnace

1982-01-04

1983-12-27

Envall, Jr., Roy N.

Industrial electric heating furnaces

Plasma furnace device

Direct furnace

373 72, H05H 100

Patent

active

044235127

ABSTRACT:
A plasma melting furnace includes a water-cooled bottom electrode of copper and a temperature probe connected with the bottom electrode. A wearing part of steel is provided in the bottom of the furnace, covering the bottom electrode. At least one counter electrode is arranged at a distance above the wearing part for the formation of the plasma jet. In order to prevent the risk of a melting through of the bottom electrode as far as to its water-cooled section on account of a secondary arc, a metal layer is provided between the bottom electrode and the wearing part. The metal layer is formed by a metal having a low thermal conductivty and a low melting point, as compared to copper, as well as a high melting enthalpy. Preferably, a metal layer of lead or its alloys with tin and/or zinc is provided.

REFERENCES:
patent: 1271093 (1918-07-01), Snyder
patent: 3717713 (1973-02-01), Schlienger
patent: 4101725 (1978-07-01), Shelepov
patent: 4137422 (1979-01-01), Barbashin et al.

Affiliated with

Also associated with

Rating

Plasma melting furnace does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Plasma melting furnace, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plasma melting furnace will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-951233