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 It is an environment sensitive process and therefore requires special equipment a key equipment for instance is the furnace Heat treatment takes place in the furnaces. There are numerous types of furnaces and they are chosen according to their role. These factors are the type of material, the levels of temperature, the need to save power and the viscosity of the material 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 types which are specific to the materials they heat treat and their areas of application. They can be categorized into physical or chemical types. In actual physical kind heaters the condition of the content remains the same In substance kind the condition changes from fluid to gas or the other way around. Physical type heaters like coke oven convert coal to coke. Rotary kiln for cement manufacturing. Hearth furnace type changes sulphide to oxide. Continuous type for heat treatment. In substance kind heaters ,induction heaters for manufacture of castings of metal materials and flash melted for matte manufacturing.
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 performance indicates that the heater should use minimum power to produce the desired results. This highly depends on the design. The furnace should be long-lasting. 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 not stop at any instance. The user interface in terms of temperature control should be exact. It should possess excellent heat recovery system. Heat recovery system is where the heat transfer takes place.
Energy sources are required in heat treatment furnace.s These sources of energy maybe fossil fuel ,electric energy or chemical energy. Choosing the energy source should be dependent on availability of the energy source. Different types of heaters use different energy sources. If you are thinking of a warm therapy heater, think energy-efficiency. It would minimize heat treatment costs very effectively
It is essential that the furnaces have good refractory material. The refractory material should be excellent. Refractory design is vita.l 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.