What is the difference between the heat treatment of cold drawn round steel and the heat treatment of wrought round steel?
Normalizing: heating steel or steel parts to the critical point, AC3 or ACM above the appropriate temperature, after a certain period of time in the air cooling, pearlite structure of the heat treatment process.
Solution treatment: the alloy can be dissolved in various phases, strengthening solid solution, improving toughness and corrosion resistance, eliminating stress and softening, so as to continue processing and forming.
Solution heat treatment: the alloy is heated to a single phase at high temperature to maintain constant temperature, so that the excess phase is fully dissolved in the solid solution, and then cooled rapidly to obtain the heat treatment process of supersaturated solid solution.
Annealing: the annealing of hypoeutectoid steel workpiece heated to AC3 above 20 - 40 degrees heat after a period of time, furnace cooling (or buried in the sand or lime cooling) to 500 degrees Celsius in air cooling heat treatment process.
