At the 1880 Mannheim Industrial Exhibition at Mannheim, Germany, Siemens and Halske Company installed an electric elevator, which transported passengers to the top of an observation tower. Continue reading
Paul-Louis Toussaint Heroult created the Electric Arc Furnace (Heated by a carbon arc at very high temp.) in France. At first it was used to melt scrap iron, then later in the Hall-Heroult process, the electrolytic refinement process of aluminum.
Name(s): Paul-Louis Toussaint Heroult
Occupation: French Metallurgist
- Electric arc furnace – Wikipedia
ndustrial arc furnaces range in size from small units of approximately one ton capacity (used in foundries for producing cast iron products) up to about 400 ton units used for secondary steelmaking.
- When was the electric arc furnace invented?
The German-born British inventor Sir William Siemens first demonstrated the arc furnace in 1879 at the Paris Exposition by melting iron in crucibles. In this furnace, horizontally placed carbon electrodes produced an electric arc above the container of metal.
- What does electric arc furnace do?
Steel scrap (or other ferrous material) is first tipped into the EAF from an overhead crane. A lid is then swung into position over the furnace. This lid contains electrodes which are lowered into the furnace. An electric current is passed through the electrodes to form an arc.
- Steel History From Iron Age to Electric Arc Furnaces – The Balance
The development of steel can be traced back 4000 years to the beginning of the Iron Age. Proving to be harder and stronger than bronze, which had previously been the most widely used metal, iron began to displace bronze in weaponry and tools.
- Electric Arc Furnace | Industrial Efficiency Technology & Measures
Electric Arc Furnaces (EAFs) are a central part of the production route that is an alternative to the dominant BF-BOF route. EAFs are used to produce carbon steels and alloy steels primarily by recycling ferrous scrap.
In 2000, Switzerland became the first country to have a fully electrified rail system, with less than 0.4 percent powered by other energy sources. Continue reading