Some Helpful Information on Heat Treatment Solutions
The heat treatment process entails controlled heating and then cooling the metals with an objective of changing their mechanical and physical properties without changing their shapes. In some instances, this process is carried out inadvertently because of the method used in manufacturing which could either heat up or cool the metal for example forming or welding. Below are some heat treatment solutions so as to grow your knowledge.
Another method of heating steel is annealing and it keeps it to a particular temperature by cooling down at a suitable rate. This improves the qualities of the metal like the softness, machinability, cold working characteristics and is quite helpful in doing away with its stresses and therefore, it gets the structure which one desires. The material is heating up to a specific temperature in full annealing and thus the carbide turns into solution either fully or partially and then it is cooled down. Sub critical annealing happens at a temperature which is lower than that where the carbide starts to become a solution.
The procedure of ageing results in structural changes. Typically, this happens in specific metals and alloys at atmospheric temperature or temperatures which are high. As a result of ageing, hardness values, ageing, and maximum increase while the ductility lowers. There are some cases where ageing is gotten by heating at a high temperature. This is normally called artificial ageing and it leads to precipitation hardening.
Carburizing is a process that involves introducing carbon into the surface layer of the steel which does not have a high carbon content. It might be achieved by heating it in a solid, gaseous or liquid medium which includes carbon. When carried out at high temperatures, it gives a carbon supply which will be absorbed by the carburized substance. The carbon concentration and its depth in the steel surfaces are changed by controlling the time and temperature which are needed by the heat treatment.
Hardening is a process which enhances the hardness of the material using heat treat. Normally, this implies heating to a temperature which is more than the critical range by maintaining the temperature at a range where diffusion will be achieved by quenching in air, oil or water.
In the process of induction hardening, the steel is hardened by heat treat. It is carried out by alternating the magnetic field to the temperature which is higher or near to the transformation range and then it is followed by quenching.
Normalizing is a method of heat treatment which requires heating to and when needed even maintaining the same at a temperature which is then followed by cooling down is air which is still. The purpose of this is to facilitate faster cooling at a medium level.