What is annealing?
The annealing is a process that is treated with heat and glass to change their properties. If the process is applied to the glass, it is held at a high temperature to get rid of the object of any voltage that has undergone in the production process. Once the glass is subjected to a permanently high temperature over the desired time, it is slowly cooling, which causes the strength and durability of the piece. As in the process of annealing of the glass glass annealing when the metal is brinded, it is first introduced to a very high temperature before cooling to seal the ductility and strength of the metal. The higher the temperature at which the glass is soaked, the shorter the period in which the glass must be exposed to such temperature. Of course, glass exposed to a very high temperature requires longer cooling. The alerts should be subjected to the non -temperature glass that can advate the glass structure. On the contrary, when the glass is brindled at lower temperatures, it takes longer a soaking time, but requires a reasonably less cooling time. Type of soaking a glass by a glass byIt should be exposed depends on the type of glass. General instructions suggest that Bullsey, Lausha and Effetre glasses should be approximately 940 ° F below the annealing temperature; Satake Glass approximately 890 ° F (476 ° C); and borosilicate glass approximately 1050 ° F (566 ° C).
metal annealing is a similar process to glass. For complete annealing of the metal, it must be introduced with an approximate temperature of approximately 90 ° F (50 ° C) above the austenitic temperature. This temperature is to be maintained for a period that ensures that the whole material is transformed into austenite or austenite-cementite. After completing this metal process, it is slowly cooled at a temperature of approximately 36 ° F/h (20 ° C/h) in a furnace to about 90 ° F (50 ° C) to the ferrite-cementite range. Once it reaches this temperature, the metal can complete the annealing process by cooling at normal room temperature.
The term annealing is also used in a different context. In the science of genetics, it concerns the process, inwhich DNA and RNA are paired by hydrogen bonds on the sequence that is free of charge to form a two -string polynucleotide.