Heat Treatment Terminology At A Glance
Heat treatment is very helpful in order to treat metals
. It refers to the process, which is a combination of heating and cooling process which is applied in case of a metal or an alloy in their solid state in order to gain the desired properties and conditions. Heat treatment solution is a process in which a particular alloy is heated to an accepted temperature and it is held on to for a sufficient period of time so that the desired constituents are allowed to enter in a solid solution. The American Foundry mens Association has coined the list of vocabulary for the various heat treatment terms. There are other organizations too, which are responsible for creating the glossary. All of these terms are primarily related to the heat treatment of aluminum. However, since all kinds of metals can be heat treated mostly, therefore, these heat treatment terms can be used in case of heat treatment of other metals as well.
Aging is a term used in the context of heat treatment. It defines a sort of change, which is time temperature dependant in case of the properties constituted by some of the particular alloys. Apart from the age softening and strain-aging factor, the consequences left by the precipitation occurring due to soil solution, which is a compound of either one or multiple substances, goes into the working of this particular process. Each of the alloys would be susceptible to ageing depending on its own characteristics, and for each of the alloys, which are susceptible to ageing; a range of unique time temperature combination is there, to which the alloy would respond.
Annealing is another term used for heat treatment of metals. This term refers to the treatment, which consists of heating and at the same time holding the metal at a temperature, which is acceptable. After holding, this terms also refers to cooling down at a rate which is suitable, and is used mainly to soften and also to produce the changes desired in the different existing properties, both at the same time. The purpose behind such changes can be but not restricted to the improvement of mach inability. Facilitation of the process of cold working, improvement of the various mechanical and electrical properties, increase in the stability of various dimensions, and the likes. Some specific names of processes related to this particular terminology would include Black Annealing, Bright Annealing, Flame Annealing, Box Annealing, Blue Annealing, Full Annealing, Cycle Annealing, Intermediate Annealing, Graphitizing, Isothermal Annealing, Speroidizing, Quench Annealing, and. Process Annealing
Another term related to the process of heat treatment would be baking. This process includes heating the metal keeping the temperature low to eliminate any entrained sort of gases. Another important term is Direct gas fired and it is related to this treatment process where the combustion products. They happen to be by-products left by the burner, the circulation of which takes place with help of the chamber meant for work.
Drawing is another commonly used term, and is identical to the term tempering. Tempering refers to the heating of a quenched alloy to such a temperature, which is below the transformation range. Then it is the indirect gas fired, which denotes that the products involved in combustion, which never circulates all the way through work chamber.
by: James
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