5.Steel Pipe Cooling

The purpose of cooling is to ensure that the steel pipe is no longer water-cooled after sizing and straightening.

Sizing:

The steel pipe from the squeeze roll has a certain ellipticity in cross section, and the outer diameter is slightly larger than that of the finished pipe. In order to eliminate these defects, the cooled steel pipe must be sized to ensure the final diameter of the product. If the sizing amount is too small or too large, it will affect the straightening of the straightening machine, so the sizing amount must be controlled at an appropriate level.

6.Sizing:

The steel pipe from the squeeze roll has a certain ellipticity in cross section, and the outer diameter is slightly larger than that of the finished pipe. In order to eliminate these defects, the cooled steel pipe must be sized to ensure the final diameter of the product. If the sizing amount is too small or too large, it will affect the straightening of the straightening machine, so the sizing amount must be controlled at an appropriate level.

7. Straightening (Turkish head):

Straightening of finished pipes with sizing, because the two rollers of the straightening machine also play a role in controlling the outer diameter of the finished pipe. In order not to change the pipe diameter, the upper, lower, left and right bends of the pipe should be straightened. The up, down, left and right positions of the vertical roller are guaranteed.