The present disclosure provides a method for manufacturing a metal component. The metal component includes; a body portion; and a flange. The method for manufacturing the metal component includes; bending a metal plate material to obtain a cylindrical body; and bending a first end of the cylindrical body toward a radial outside so as to enlarge its diameter to form the flange. Obtaining the cylindrical body includes bending the plate material and then welding both ends of the plate material that face each other. The method further includes cutting out a specified area of the cylindrical body, in which the flange is formed, in a circumferential direction.

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.

A scaffolding assembly configured for use with an assembly table is provided. In one embodiment, the scaffolding assembly can include an inner scaffolding and an outer scaffolding, wherein the inner scaffolding and the outer scaffolding each include: a plurality of main posts having a lower end and an upper end; an extendible arm connected to each of the main posts, wherein the extendible arm is configured to extend substantially perpendicular from the main post; and a tertiary scaffolding support connected to the extendible arm and the main post, the tertiary support configured to transfer at least some of the force from the extendible arm to the main post, wherein the scaffolding assembly is configured to attach to the assembly table, such that the scaffolding assembly receives support from the assembly table.

A new method of manufacturing a railroad car tank head having the steps of providing a circular blank of steel plate material, cold-forming the circular blank to form an intermediate ellipsoidal dish, cold-forming a peripheral flange region of the intermediate ellipsoidal dish to form a flanged ellipsoidal dish, and heat treating the flanged ellipsoidal dish. The heat treatment may be either a thermal stress relieving heat treatment or a normalizing heat treatment. The two cold-forming steps may be carried out at room temperature. The present invention provides a method of making a railroad car tank head that is more efficient than prior methods, avoids the challenges of hot-forming and single-stage cold-forming, is easily adaptable to different tank head diameters using the same forming equipment, and yields a railroad car tank head that meets safety standards.

A method of forming a thick wall section on a specific region of a thin wall spinformed metallic tank shell includes forming a thin wall metallic tank shell blank by spinforming a metal sheet over a mandrel and removing the tank shell blank from the mandrel. The method further includes mounting the blank in an additive manufacturing system and adding metallic structural features to the tank shell according to a 3D model stored in memory in the additive manufacturing system.

To suppress warping at a bottom of a workpiece when manufacturing a bottomed box-section cylindrical container by molding a workpiece from a flat plate state to a box-section cylindrical shape state having a bottom by performing multiple press-drawing steps by using multiple molds each having a long-hole-shaped shaping hole. A first press-drawing step is performed using a first mold having a first shaping hole having a long hole shape. A second press-drawing step is performed using a second mold having a second shaping hole having a long hole shape, and is configured as a next press-drawing step after the first press-drawing step. The first shaping hole is formed with a larger dimension in a width direction perpendicular to a longitudinal direction than the second shaping hole, and is formed tapering inward in the width direction from both end sides to the center side in the longitudinal direction.

To suppress warping at a bottom of a workpiece when manufacturing a bottomed box-section cylindrical container by molding a workpiece from a flat plate state to a box-section cylindrical shape state having a bottom by performing multiple press-drawing steps by using multiple molds each having a long-hole-shaped shaping hole. A first press-drawing step is performed using a first mold having a first shaping hole having a long hole shape. A second press-drawing step is performed using a second mold having a second shaping hole having a long hole shape, and is configured as a next press-drawing step after the first press-drawing step. The first shaping hole is formed with a larger dimension in a width direction perpendicular to a longitudinal direction than the second shaping hole, and is formed tapering inward in the width direction from both end sides to the center side in the longitudinal direction.

A nonstick pan includes a pan body, where an inner surface of the pan body is provided with protruding dots; the protruding dots include a central protruding dot and surrounding protruding dots; the central protruding dot is located at a center of the inner surface of the pan body and surrounded by protruding dot rings that are distributed from inside to outside around the central protruding dot; the protruding dot ring includes a plurality of surrounding protruding dots separated from each other; the central protruding dot and the surrounding protruding dots have a protrusion height of H; concave portions are formed between the central protruding dot and the surrounding protruding dot and between the surrounding protruding dots on the inner surface of the pan body; and a nonstick layer is provided on the concave portions on the inner surface of the pan body.

A nonstick pan includes a pan body, where an inner surface of the pan body is provided with protruding dots; the protruding dots include a central protruding dot and surrounding protruding dots; the central protruding dot is located at a center of the inner surface of the pan body and surrounded by protruding dot rings that are distributed from inside to outside around the central protruding dot; the protruding dot ring includes a plurality of surrounding protruding dots separated from each other; the central protruding dot and the surrounding protruding dots have a protrusion height of H; concave portions are formed between the central protruding dot and the surrounding protruding dot and between the surrounding protruding dots on the inner surface of the pan body; and a nonstick layer is provided on the concave portions on the inner surface of the pan body.

A two-section assembly chamber includes a section S1 (11) and a section S2 (12), whose shapes are selected between cylindrical, where section S1 (11) has a diameter larger than the section S2 (12), and in the shape of a conical frustum, where sections S1 (11) and S2 (12) form a conical frustum, where the conical frustum begins at S1 (11) with the wider part and ends at S2 (12) with the narrower part, both sections S1 (11) and S2 (12) are joined or welded together, and are removable, each having respective caps (21, 22), wherein the assembly chamber has at least one perforation for introducing a pressurized fluid. The assembly chamber is configured so that a tube (30) or a second chamber, which has a larger diameter than the section S2 (12), is assembled within the inner diameter of the section S2 (12).