Seamless Steel Pipe

　　Wall thickness precision steel pipe production control is a difficult process and improve the accuracy of precision steel wall thickness are mainly the following aspects: 　　1, heating pipes, heating should be uniform, rapid lifting ban temperature. Each heating and cooling, in order to maintain stability. 　　2, centering rollers, opening the same size centering rollers determine the installation is in place, embrace the central core volume adjustments related to the opening angle and various actions. 　　3, rolling centerline, the centerline of the car to ensure that rolling consistent with the centerline of the hole puncher avoid scrolling up and down "the tube to maintain a straight line. 　　4, rolling tool for head and other rolling tool wear should be promptly replaced. 　　5, rolling tool installation, the central leadership must ensure that the centerline of the centerline distance and rolling guide rollers perforated, which is equal to the distance from the upper and...

    Seamless steel tube, from its spelling, we can see that it has no weld.So it can bear high pressure or high temperature working condition. Forming process for seamless steel pipe can be casting or cold drawing.     Precision steel pipe need more advanced technology, so it just been applied in recent years. Also from the spelling, we can see that there will be much less tolerance for precision steel pipe, this includes OD tolerance, WT tolerance, roundness tolerance, length tolerance, weight tolerance, etc.     Cold drawn precision steel pipe features:     1. Complicated cross section.     2. Accurate precision and good surface quality.     3. MOQ is much less than normal carbon steel pipes.     4. OD will be smaller.     Generally speaking, for small OD with strict tolerance range, it would be better if we choose to go by precision steel pipe, especially for industrial steel pipe or steel ...