Electrode for arc furnaces

US4442525A · kind A · utility

Assignee

• Arc Technologies Systems Ltd. · KY

Inventors

• Dieter Zollner
• Friedrich Rittmann · Neunburg vorm Wald, DE
• Herbert Dung · Dortmund, DE
• Johannes Haremsa · Herne, DE
• Georg Bauer · Koblenzer Straße, DE
• Josef Otto · Wetter, DE
• Josef Muhlenbeck · Wetter, DE
• Inge Lauterbach-Dammler · Nuremberg, DE

Key dates

• Filing date: Jan 26, 1982
• Grant date: Apr 10, 1984
• Expiry date: Jan 26, 2002

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/25
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

An arc furnace electrode for the production of electric steel, comprising a metallic top portion and a consumable, replaceable bottom portion threadably interconnected. The top portion is provided with coolant feed and return ducts and includes a protective covering. The protective covering is represented by a detachable surmounted sheath of electrically conductive heat resistant material. The sheath is subdivided into individual segments. The electrode includes internally disposed recesses advantageously accommodating elastic and electrically conductive materials especially advantageous properties.