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What does steel bar processing include?

Release time:

2024-01-05

Cold drawing of steel bars is to stretch the steel bars at room temperature, so that the tensile stress of the Ganzhou steel bars exceeds the yield point and causes plastic deformation, in order to achieve the purpose of increasing the strength (yield strength). During cold drawing, the steel bar is straightened and the rust residue on the surface is automatically peeled off. Therefore, cold drawing can not only improve the strength of the steel bar, but also complete the straightening and rust removal work at the same time. The cold drawing of steel bars can adopt the method of controlling stress or controlling the cold drawing rate;

1. Cold drawing of steel bars is to stretch the steel bars at room temperature, so that the tensile stress of the Ganzhou steel bars exceeds the yield point and causes plastic deformation, in order to achieve the purpose of increasing the strength (yield strength). During cold drawing, the steel bar is straightened and the rust residue on the surface is automatically peeled off. Therefore, cold drawing can not only improve the strength of the steel bar, but also complete the straightening and rust removal work at the same time. The cold drawing of steel bars can adopt the method of controlling stress or controlling the cold drawing rate;

2. Steel bars are straightened using mechanical methods. Steel bars with a diameter of 4-14 can be straightened with a straightening machine. Thick and thin bars can also be straightened with a motorized hammer or straightened;

3. To cut the steel bars, you can use a steel bar shearing machine or a manual shear;

4. When bending steel bars, use mechanical cold bending and do not use gas welding and baking;

5. When processing stirrups, the curved part should ensure 135°, the straight length should be 10d, and the legs of the stirrups should be parallel;

6. The steel bar positioning ladder, positioning fixtures, horse stools, etc. need to be processed and inspected in advance to ensure accurate dimensions;

7. The processed Ganzhou steel bar semi-finished products must be stacked within the designated area on site and marked with signs indicating the type, size, use part and quantity of the steel bars to prevent misuse during use;

8. Use a bending machine. In the absence of machinery, you can also use a hand-cranked plate to bend steel bars, and use a chuck and plate head to bend thick steel bars.