Factories use different methods and tools to produce iron and metal sections. In the meantime, the melting method is one of the most common methods used to produce iron products such as beams, rebars, etc. It should be noted that the choice of cold or hot rolling method has an effective role in the price of rebar and other steel products. The furnace is one of the necessities for smelting operations. In today’s world, various furnaces with unique features are used in the steel and metal industries.
Furnace Application
According to a professional offering new furnace in Toronto, furnaces play a very effective role in creating the properties of materials and the final quality of products. Different types of furnaces are used in different stages of the production of steel sections. These devices are used in preheating the rod, producing ferrous and non-ferrous products such as melting scraps, deformation of metal plates by heating method, and heat treatment of steel.
Types of Furnaces
These devices have many uses, advantages, and disadvantages that make them different. We will describe them further.
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Bush furnace
The bush furnace is one of the oldest and most traditional furnaces often used in foundry workshops. With the advancement of technology and the introduction of technology into the production system, the use of a bush furnace is still common, and today this type of furnace is also used in some workshops.
In a bush furnace, molten materials are produced by applying heat to raw materials without making contact between raw materials and fuel. Among the fuels used in this furnace are diesel, fuel oil, natural gas, and electricity.
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Capella furnace
The structure of the cupola furnace is in the form of a steel cylinder, often used in melting cast iron. The building of this furnace is covered with a fireproof wall, and the size of the opening or the diameter of this steel cylinder changes based on the capacity and melting speed of the materials. The products obtained using this furnace are an air pre-heater, charging rail, and gas purification place. This type of iron production furnace has a melting capacity of 100 to tens of tons of final products.
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Electric resistance furnace
The presence of elements and the passage of electric current through them has caused the heat needed to melt raw materials to be produced in electric resistance furnaces. In the construction of the elements, alloy materials with a high melting point, resistant to corrosion and oxidation, are used so that they do not melt under high heat. Electric resistance furnaces are produced and used in two types: direct heating and indirect heating.
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Induction Furnace
One of the types of new and modern furnaces that use electric current to melt raw materials is the induction furnace. This furnace is placed in the category of resistance furnaces. This electric current device creates a magnetic field in the coil, which causes it to melt by producing eddy currents in the metal. The frequencies of this oven are divided into three categories: low 50 Hz, medium between 200 and 1000 Hz, and high frequency 1000 Hz and above.
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Electric arc furnace
This type of furnace has a large space with a steel body covered with refractory materials and water pipes, where the raw materials melt when exposed to heat. The use of water pipes is to prevent the loss of refractory material against high temperatures. The electric arc furnace is also divided into direct and indirect electric arcs.
