Heat treatment is a metalworking process used to alter physical and chemical properties of materials In layman’s language, components are heated or cooled at very extreme temperature ranges. It is a very sensitive procedure especially in the industrial manufacturer of metals It is an environment sensitive procedure and therefore requires special equipment a key equipment for example is the furnaces. Heat conditioning required a furnace to work. There many different types of furnaces which depend on the factors at hand. These factors are the type of material, the levels of temperature, the need to save power and the viscosity of the material Every type of furnace is specific to its area of application. Application of furnaces are numerous.
A heater is basically a heat controlled environment and is used to process raw materials at very hot conditions both in molten and solid state. They are of different kinds which are particular to the components they warm treat and their areas of program. They can be classified into either actual physical or substance kind heaters. In physical type furnaces the state of substance being heat treated remains the same. In substance kind the condition changes from fluid to gas or the other way around. Physical type furnaces are coke oven for coal to coke conversion. Rotary kiln for cement production Hearth furnace for changing sulphide to oxide Continuous type for hot working. In substance kind heaters ,induction heaters for manufacture of castings of metal materials and flash melted for matte manufacturing.
For a furnace to be termed to as good it should employ different abilities. Energy performance, durability, excellent fluid circulation inside the heater, precise heat range management methods and excellent warm restoration program. Energy performance indicates that the heater should use minimum power to produce the desired results. This highly depends on the design. The heater should be durable. This means that it should work its role for the longest time possible. Good fluid flow means that the fluid flowing in the furnace should have continuous flow. The user interface in terms of temperature control should be very accurate. It should possess excellent heat recovery system. This represents how and where the warm in the content is transferred.
Heat treatment furnaces require sources of energy. These types of power maybe fossil fuel ,electric power or substance power. The most available energy source is the most advisable. Different types of furnaces employ their own specific type of energy source. If you are thinking of a warm therapy heater, think energy-efficiency. It would minimize heat treatment costs very effectively
It is vital that the furnaces have excellent refractory material. Good refractory material is vital. Refractory design should be highly considered. Thermal enclosure of the furnace is designed and constructed keeping in view the requirements. For instance refractory facing the thermal enclosure must be chemically inert and refractory.