Annealing process and purpose of the oxygen annealing carbon steel pipe

Anaerobic annealing carbon steel pipe is that cut off oxygen to the environment to process of carbon steel pipe, carbon steel pipe applied to the annealing process, so here is to pay attention to the annealing details anaerobic annealing, recrystallization annealing applied to the balance of heating and cooling, the solid phaseeach occurrence of change (recrystallization) alloy, the annealing temperature for the alloy phase transformation temperature range above or within a certain temperature, heating and cooling is slow, the alloy is in the process of heating and cooling a phase transition re-crystallization, it is referred to as recrystallization annealing, often referred to as annealing.
Oxygen annealing carbon steel pipe, a main annealing process parameters is the highest heating annealing temperature, the choice of annealing temperature of the alloy systems based on phase diagram, picture shows the basis of the balance of iron-carbon such as carbon steel. All kinds of steel (carbon steel and alloy steel), annealing temperature, depending on the specific annealing to the different purposes over the steel ac3 the ac1 above or below a certain temperature. A variety of non-ferrous alloy annealing temperature below the solidus temperature of the alloy, the solubility line temperature above or below a certain temperature.

Annealing process with the purpose of different kinds, such as recrystallization annealing, isothermal annealing, homogenization annealing, annealing, removal of stress annealing, recrystallization annealing, and stable annealing, the magnetic field annealing, followed by oxygen annealing and carbon steel pipe metal will slow heating to a certain temperature, to maintain sufficient time for cooling, and then to the appropriate speed (usually a slow cooling, sometimes controlled cooling), a metal heat treatment process. Oxygen annealing and carbon steel pipe After casting, forging rolling, welding or cutting material or workpiece to soften and improve the ductility and toughness, so that the chemical composition of homogenization, removal of residual stress, or get the desired physical properties.


Post time: Sep-24-2019