Introducing the functions of solution treatment of high-precision cold drawn tubes
The role of solution treatment of high-precision cold drawn tubes:
1. Making the structure and composition of high-precision cold drawn pipes uniform is very important for raw materials, because the rolling temperature and cooling rate of each section of hot-rolled pipes are different, resulting in different organizational structures. At high temperatures, atomic activity intensifies, the σ phase dissolves, the chemical composition becomes uniform, and a uniform single-phase structure is obtained after cooling.
2. Eliminate work hardening to facilitate continued cold working. Through solid solution treatment, the distorted crystal lattice is restored, the elongated and broken grains are recrystallized, the internal stress is eliminated, the tensile strength of the steel wire decreases, and the elongation increases.
3. Restore the inherent corrosion resistance of high-precision cold drawn pipes. Due to the precipitation of carbides and lattice defects caused by cold working, the corrosion resistance of high-precision cold drawn tubes is reduced.
1. Making the structure and composition of high-precision cold drawn pipes uniform is very important for raw materials, because the rolling temperature and cooling rate of each section of hot-rolled pipes are different, resulting in different organizational structures. At high temperatures, atomic activity intensifies, the σ phase dissolves, the chemical composition becomes uniform, and a uniform single-phase structure is obtained after cooling.
2. Eliminate work hardening to facilitate continued cold working. Through solid solution treatment, the distorted crystal lattice is restored, the elongated and broken grains are recrystallized, the internal stress is eliminated, the tensile strength of the steel wire decreases, and the elongation increases.
3. Restore the inherent corrosion resistance of high-precision cold drawn pipes. Due to the precipitation of carbides and lattice defects caused by cold working, the corrosion resistance of high-precision cold drawn tubes is reduced.
