In the stainless steel pipe production line, after going through a series of processes ahead, the pipe may be offset and bent, so that the pipe can not meet the production standard. Therefore, in the process, it is necessary to increase the straightening process of the pipe. In the stainless steel welded pipe production line, a Turkish head is generally used to straighten the pipe, which is generally set after static sizing.
The Turkish head has the following requirements when straightening the steel pipe:
First, correctly determine the bending direction of the steel pipe, and adjust the rolling direction of the Turkish head according to the bending direction. In order to correctly determine the bending direction of the steel pipe, there needs to be a certain distance between the last finishing frame and the Turkish head, if it is too close, it will be difficult to determine the bending direction. The determination of this distance is related to the outside diameter of the pipe, and generally needs to be determined according to the outside diameter of the pipe and the spacing between the two Turkish heads.
Second, correctly set the spacing between the straightening fulcrum, the fulcrum of the Turkish head straightening are: the final frame of the static diameter section and the Turkish head, and the spacing of these three points is generally required to be evenly divided. The spacing between the Turkish heads needs to be adjusted according to the pipes produced and adjusted to the appropriate spacing to straighten the pipes of different specifications produced by the production line.
Third, correctly adjust the deflection of the reverse bending of the Turkish head. Different pipe diameters, different wall thicknesses, different steel grades, different bending degrees, there are great differences in the internal stress when bending, so the straightening needs different straightening deflections, which can be calculated approximately in theory, but mainly we need to accumulate seriously in production practice, to master, the same steel grade, the same specification of steel pipe, will also be due to the steel quality. The change of molding and other factors causes different degrees of bending.
Related: stainless steel pipe production line, high-speed welded steel pipe production line
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