摘要:
The present invention relates to a hot rolling high-pressure fluid descaling method and descaling apparatus. The apparatus comprises at least one descaling unit, a axial direction of a main pipe header of the descaling unit and a rolling stock transportation direction intersect. Each nozzle ejects fluid onto a surface of the rolling stock to form an impact region. The adjacent impact regions are presented in an alternate pattern on the surface of the rolling stock. The center lines of the impact regions along a longitudinal direction are spaced apart by a specific distance, and the center lines are essentially perpendicular to the rolling stock transportation direction.
摘要:
The present invention relates to a method and an auxiliary device for precision positioning of welded type nozzles. The auxiliary device for precision positioning of welded type nozzles includes a plurality of alignment tips and an alignment bar. Each alignment tip is connected to a welding adapter and extends a distance. The alignment bar is combined with the alignment tips so that first positioning portions of the alignment tips are aligned with a plurality of second positioning portions of the alignment bar, and after the alignment bar is combined with the alignment tips, a correction distance between an end surface of the alignment bar and a center line of a main pipe header in a longitudinal direction is larger than a length of an assembled nozzle after a nozzle tip is combined with the corresponding welding adapter. In this way, the geometric positions of the nozzles can be accurately corrected.
摘要:
The present invention relates to a hot rolling high-pressure fluid descaling method and descaling apparatus. The apparatus comprises at least one descaling unit, a axial direction of a main pipe header of the descaling unit and a rolling stock transportation direction intersect. Each nozzle ejects fluid onto a surface of the rolling stock to form an impact region. The adjacent impact regions are presented in an alternate pattern on the surface of the rolling stock. The center lines of the impact regions along a longitudinal direction are spaced apart by a specific distance, and the center lines are essentially perpendicular to the rolling stock transportation direction. The interference caused by the rebounding of the jet sprays from the adjacent nozzles is reduced. Hence, the descaling quality is improved, that is, the roll-in-scale in the surface of the products is reduced and the surface quality of the products is enhanced.