“annealing”的概念、定义、翻译、参考文献-科学参考

annealing

Physics

A form of heat treatment applied to a metal to soften it, relieve internal stresses and instabilities, and make it easier to work or machine. It consists of heating the metal to a specified temperature for a specified time, both of which depend on the metal involved, and then allowing it to cool slowly. It is applied to both ferrous and nonferrous metals, and a similar process can be applied to other materials, such as glass.

Astronomy

In optical manufacture, the process of allowing glass or ceramic to cool slowly at a controlled rate, to avoid stress patterns within the material. A large mirror blank, for example, is cast from molten material. If cooling is too rapid, temperature variations will arise and some areas will solidify more rapidly than others, creating internal stresses that can cause the mirror blank to shatter when it is being ground to shape. Annealing of a large telescope mirror can take several months.

Chemistry

A form of heat treatment applied to a metal to soften it, relieve internal stresses and instabilities, and make it easier to work or machine. It consists of heating the metal to a specified temperature for a specified time, both of which depend on the metal involved, and then allowing it to cool slowly. It is applied to both ferrous and nonferrous metals and a similar process can be applied to other materials, such as glass.

Chemical Engineering

A heat treatment process used to relieve internal stresses in ferrous and non-ferrous metals. It involves heating the metal to a specified temperature over a specified period of time to soften it. It is then allowed to cool slowly. The annealed metal is less brittle with reduced internal stress and is therefore easier to work or machine. A similar process is applied to glass.

Geology and Earth Sciences

See hot working.

单词	annealing
释义	annealing Physics A form of heat treatment applied to a metal to soften it, relieve internal stresses and instabilities, and make it easier to work or machine. It consists of heating the metal to a specified temperature for a specified time, both of which depend on the metal involved, and then allowing it to cool slowly. It is applied to both ferrous and nonferrous metals, and a similar process can be applied to other materials, such as glass. Astronomy In optical manufacture, the process of allowing glass or ceramic to cool slowly at a controlled rate, to avoid stress patterns within the material. A large mirror blank, for example, is cast from molten material. If cooling is too rapid, temperature variations will arise and some areas will solidify more rapidly than others, creating internal stresses that can cause the mirror blank to shatter when it is being ground to shape. Annealing of a large telescope mirror can take several months. Chemistry A form of heat treatment applied to a metal to soften it, relieve internal stresses and instabilities, and make it easier to work or machine. It consists of heating the metal to a specified temperature for a specified time, both of which depend on the metal involved, and then allowing it to cool slowly. It is applied to both ferrous and nonferrous metals and a similar process can be applied to other materials, such as glass. Chemical Engineering A heat treatment process used to relieve internal stresses in ferrous and non-ferrous metals. It involves heating the metal to a specified temperature over a specified period of time to soften it. It is then allowed to cool slowly. The annealed metal is less brittle with reduced internal stress and is therefore easier to work or machine. A similar process is applied to glass. Geology and Earth Sciences See hot working.
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