Working principle of high ductility cold rolled ribbed steel bar production line

The material is stretched to point d exceeding the yield limit, and then gradually unloaded, so that the steel bar is circularly deformed. When the material is loaded again to point d exceeding the yield limit, the material will not undergo plastic deformation, which improves the material quality. proportional limit. In engineering, this property of materials is often used to increase the proportional limit. For example, steel ropes used for lifting and steel bars used in construction are often cold drawn and cold rolled to increase their strength.
The ribs on both sides of the steel bar circle will play a good role in stress dispersion, which can increase the stability of the material and resist plastic deformation when loaded. Foreign aero engines have many criss-crossing ribs on their surfaces, which serve this purpose.