scientific forging rotary hook block mainly goes through the following steps;
1. Raw material upsetting: forge into a round billet with a certain diameter on a free forging equipment;
2. Swaging: On the free forging equipment, by lengthening, it can meet the requirements of various cross-section dimensions and metal flow lines of the hook;
3. Bending: Instead of the traditional completely free bending mode, using the bending die, it is possible to quickly bend the blank which substantially conforms to the shape of the hook and meets the longitudinal distribution of the metal flow line along the hook shape;
4. Molding: On the free forging equipment or die forging equipment, through the plastic deformation of the blank, the hooks conforming to the shape and size are finally forged.
The main advantages of the forging production process for lifting hooks:
It can meet the requirement that the hook has obvious metal flow lines along the hook shape, and the use intensity is relatively high;
And distributed along the entire hook shape in the longitudinal direction; to meet the requirements of the hook with obvious metal flow lines along the hook shape, the quality is superior, and is widely praised by the users in the lifting industry.