Oscar Kjellberg was a Swedish

Sweden

Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....

 inventor and industrialist. Founder of ESAB

ESAB

ESAB, Elektriska Svetsnings-Aktiebolaget , is a Swedish industrial company.-History:The Company was founded by Oscar Kjellberg, who pioneered the development of manual metal arc welding electrodes, in Gothenburg in 1904...

, in 1904, and Kjellberg Finsterwalde

Kjellberg Finsterwalde

Kjellberg Finsterwalde is a group of German companies in the metal and electrical industry. The group consists of the three manufacturing companies, Kjellberg Finsterwalde Plasma und Maschinen GmbH, Kjellberg Finsterwalde Schweißtechnik und Verschleißschutzsysteme GmbH and Kjellberg Finsterwalde...

, in 1922. He invented the coated electrode used in manual metal arc welding (Swedish Patent: 27152, June 29, 1907), by dipping a bare iron wire in a thick mixture of carbonates and silicates. The purpose of the coating is to protect the molten metal from oxygen and nitrogen present in the atmosphere. His pioneering of covered electrode development paved the road during the next twenty years in the research of reliable flux coated electrodes.

See also: Welding

Welding

Welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by causing coalescence. This is often done by melting the workpieces and adding a filler material to form a pool of molten material that cools to become a strong joint, with pressure sometimes...

External links

• Esab - Official site
• Kjellberg Finsterwalde - Company founded by Oscar Kjellberg in 1922