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Knowing the Lead Melting Pot: Kinds of Melting Furnaces

by nohemitutterrow

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Metal casting and alloying are techniques that have been around for thousands of years since man found out about metal. At present, with the onset of scientific breakthrough, people have created state-of-the-art methods to melt and mix metals for various purposes. An important tool is the durable lead melting pot and other forms of furnaces for thawing metals. Below are several examples of such.

Cupola Furnace

The cupola furnace has a long cylindrical shape which is among the oldest models for melting furnaces. Clay or brick blocks are layered within the furnace to secure the interior from heat, oxidation and abrasion. Some metal alloys like iron and limestone are put in to help melt the metal inside. The limestone alloy acts in response with the metal, inducing any contamination in the latter to float to the top when melted.

Hearth Furnace

A hearth furnace is another kind that has been employed since the ancient times. It utilizes fire that brings in extremely high temperatures to thaw the metal. This type is generally used to thaw smaller volumes of materials. Cutting-edge hearth furnaces utilize either natural gas or electricity to create the amount of heat for the hearth. As in the cupola furnace, specific metal additives are likewise put in to get rid of impurities.

Electric Furnaces

These furnaces make use of electricity to liquefy the lead or other metal the way your kitchen pot can thaw butter. The metal and other augmentations are installed within the pot, along with some chemical ingredients that keep the melted lead from sticking to the surface. Thanks to electricity, the furnace can achieve the needed heat level in a very short period thus lowering energy consumption. Electrical furnaces are the primary smelting furnaces used in steel mills and foundries.

Induction Furnaces

While this kind of furnace also heats the lead by means of electric power, it in fact makes use of an induction heating technique. This method involves electromagnetism as an alternative to conventional heating. Alternating forces of magnetic currents are employed to generate heat to smelt ore. These are the most suited to melt and manufacture iron and other non-ferrous metals.

Other than furnaces, a functional natural gas burner can also be utilized for tin, lead and solder smelting. Producers can tailor it for industrial and commercial use ranging from half to six-inch diameter pipes of around 21-inch long. To check out more about melting furnaces, go to

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