electric furnace

At a silicon factory in China’s northwestern desert, Uyghur workers operate electric furnaces that reach more than 2,000 degrees.

To-day in the electric furnace one may see tons of incandescent steel swirling about like boiling milk in a saucepan.

A traveling crane slowly hoisted the massive iron lid of the electric furnace.

He was reducing refractory metallic oxides in an electric furnace made of lime.

A few words of explanation of the electric furnace will show why.

With the development of the modern electric furnace the possibility of calcium carbide as a commercial product became known.