Heat treatment generally refers to metalworking procedure used to change the physical and chemical make-up 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 This process requires special condition and to be precise controlled environments which are commonly termed as furnaces. This is where the actual heat treatment takes place. The choice of furnaces depends on the function desired to be performed. These aspects are of content, the levels of heat range, the need save power and the viscosity of the content. Every kind of heater is particular to its area of program. Heat therapy heaters have a number of applications.
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 actual physical kind heaters the condition of the content remains the same In chemical type there is change of state from liquid to gaseous state, Physical type furnaces are coke oven for coal to coke conversion. Rotary kiln for cement manufacturing. Hearth furnace for sulphide to oxide conversion. Continuous type for hot working. In chemical kind heater, induction heaters for production of castings of metal materials and flash meter for matte production.
For a furnace to be excellent it should possess several abilities. Energy efficiency, durability, good fluid flow inside the furnace, accurate temperature control methods and good heat recovery system. Energy efficiency means that the furnace should use little heat to produce maximum results. The furnace design is vital to realize this ability. The furnace should be long-lasting. .This means that the heater should be long lasting. Good fluid flow means that the fluid flowing in the furnace should not stop at any instance. The user interface in terms of temperature control should be very accurate. It should also have a good 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 heaters use different energy sources. Energy efficiency should be prioritized when choosing the furnace type. It would minimize heat treatment costs very effectively
It is vital that the furnaces have excellent refractory material. The refractory material should be excellent. Refractory design should be highly considered. Thermal enclosure of the heater is designed and made keeping the requirements in view For example refractory facing the thermal enclosure must have high refractoriness, chemically inert.