摘要:
Disclosed herein are systems and method for forming a final hollow body from a metal strip. A forming system may include a forming station, a joining station, an inline heater, and a hydroforming station. Forming the final hollow body from the metal strip may include receiving the metal strip at the forming station and bending the metal strip to a desired cross-section with the forming station and such that longitudinal edges of the metal strip are abutting. In some aspects, the forming station includes at least one roller. The method may include welding the abutting longitudinal edges together as a seam region via the joining station and to form an intermediate hollow body. The method may include heating the seam region of the intermediate hollow body with the inline heater and hydroforming the intermediate hollow body to the final hollow body with the hydroforming station.
摘要:
The apparatus for manufacturing a tubular, sheet metal heat-insulating element (1) from a sheet metal blank (9) successively comprises, in a direction of travel perpendicular to the axis of the heat-insulating element to be produced, a drive unit (5) for conveying the blank (9) flat in the direction of travel (F), a set of shaping rolls (61, 62) comprising shaping rollers (65, 66) for forming a relief on the edge of the blank, and a roll-bending unit (7), situated immediately downstream of the set of shaping rolls, for roll-bending the blank comprising said relief. Firstly, reliefs are shaped on the edges of the blank by means of shaping rolls, then roll-bending is performed, preferably immediately thereafter and in the same operation, the edge-forming and roll-bending being carried out in a single pass.
摘要:
A method for moving a packed column section about a remote manufacturing yard is provided. In one embodiment, the packed column section can include a first course, a second course, packing disposed within the first course and second course, and a plurality of distributors. The method can include the steps of placing the packed column section on top of a movable platform, the movable platform configured to support and distribute the weight of the packed column section; and moving the packed column section from a first point to a second point, the second point being in an open area adapted for stacking a plurality of packed column sections on top of each other to form a column.
摘要:
A method for fabricating a distillation column in a remote location away from a permanent manufacturing facility is provided. In one embodiment, the method can include the steps of: forming a plurality of column sections each having a diameter D, each column section comprising a plurality of courses that have been horizontally welded together, wherein each course is comprised of two or more partial shells that have been vertically welded together, wherein each of the two or more partial shells was created by vertically rolling a rectangular plate having a length of at least ( 1 N π · D ) , wherein N is the number of partial shells used to form the course; installing a distributor and packing in each column section to form a plurality of packed column sections; and stacking the plurality of packed column sections to form a column.
摘要:
A roll forming apparatus including a plurality of stations each including and an upper roll and a lower roller, wherein a first number of stations are configured to form a pipe blank into a standing seam, and a second number of stations are configured to angle the seam. At least one station includes elongated top and bottom rollers for clinching the pipe blank during the roll forming process. Each elongated top roller is mounted on a pivotable shaft configured to pivot the elongated top rollers away the pipe blank to allow passage of at least one seam formed in the pipe blank.
摘要:
A squeeze roll stand includes a combination of a fixed portion installed at a joint position of an electric resistance welded pipe manufacturing line, in which squeeze rolls excluding left and right upper rolls are detachably assembled, and a movable portion overlying the fixed portion, inside which left and right upper rolls are detachably assembled, the movable portion being inclined, taking a back surface downstream side as a fulcrum point, toward a same side from an assembling position on the fixed portion to a retreat position to open an upper part of the fixed portion. The movable portion is driven and reciprocated between the assembling position and the retreat position with cylinder type actuators as a drive mechanism. At the retreat position, the movable portion overlies a bead grinding device arranged on the back surface downstream side of the fixed portion with a front surface facing upward.
摘要:
Disclosed is a flexible roll forming device including: bases respectively disposed on opposite sides with respect to a process direction center line in a left/right direction, each having an opening formed in an upper side thereof connected to an inside thereof, and rails configured thereon on opposite sides of the opening in a lateral direction of the process; forward/backward moving means having a slide plate provided to be movable along the rails on the base; turning means rotatably provided to the slide plate; and roll forming means provided on the turning means to include upper and lower forming rolls for subjecting a material fed thereto to flexible roll forming by using the upper and lower forming rolls while varying positions in the lateral direction of processing with the forward/backward moving means, and angles from a process direction with the turning means.
摘要:
A trolley for supporting the plate during vertical rolling of the plate is provided. In one embodiment, the trolley can include a support body configured to provide support for the trolley; a plurality of wheels configured to allow the trolley to move across a floor; a lifting arm supported by the support body, wherein the lifting arm is movable about a first position and a second position; a pump handle configured to raise the lifting arm between the first position and the second position; and a plate holder configured to move with the lifting arm and hold the plate in place relative to the trolley.
摘要:
The machine for the formation of tubes includes at least, in series with each other, forming stations including pairs of idle rollers which make rototranslational movements of the same amplitude but in opposite directions, and at least one finishing station including four idle rollers having a concave profile with a constant curvature and able to perform rototranslational movements of the same amplitude and direction according to 90° axes. The lower rollers of each forming station have an elliptical profile with a curvature decreasing form the outer edge to the inner edge of the roller. The upper rollers of the first forming station have an elliptical profile with a curvature increasing from the outer edge to the inner edge of the roller; the upper rollers of the forming stations subsequent to the first have a circular profile.
摘要:
An internal tool for bending a strip passing in a strip-travel direction into a tube has a support juxtaposable with a face of the passing strip, at least two roller holders pivotal on the support about respective offset holder pivot axes generally parallel to the strip-travel direction, and respective rollers carried in the holders and rotatable about respective roller axes generally perpendicular to the respective holder axes.