A forming device and a method for forming an inner rim of an annular round blank. The forming device has a lower tool with a movable die and an upper tool arranged opposite the lower tool along a working axis A. By means of the die, the annular round blank is moved out of a transport plane T and into a forming position U towards the upper tool and into the interior of a holding sleeve. Subsequently, the inner rim is formed with the aid of a forming tool. After forming, the annular round blank is moved out of the forming position U and back into the transport plane T by means of the lower tool and/or the upper tool. The forming device and the forming method can occur while the round blanks are being fed to an embossing station while being transported by a revolving table.

A forming device and a method for forming an inner rim of an annular round blank. The forming device has a lower tool with a movable die and an upper tool arranged opposite the lower tool along a working axis A. By means of the die, the annular round blank is moved out of a transport plane T and into a forming position U towards the upper tool and into the interior of a holding sleeve. Subsequently, the inner rim is formed with the aid of a forming tool. After forming, the annular round blank is moved out of the forming position U and back into the transport plane T by means of the lower tool and/or the upper tool. The forming device and the forming method can occur while the round blanks are being fed to an embossing station while being transported by a revolving table.

A method of manufacturing an annular component comprises providing an annular shell to form the outer wall of the component and a plurality of flat annular rings wherein a radially inner edge of each ring is shaped to correspond to a cross-section of the shell at a different position along its length. The method comprises attaching each ring to the ring(s) adjacent to it at a plurality of circumferentially spaced discrete positions. The method comprises deforming each flat annular ring into a corrugated three-dimensional shape, wherein the corrugations extend out of the flat plane and comprise radially defined peaks and troughs. The method comprises locating the shell within the plurality of attached, deformed annular rings. The method comprises attaching the plurality of attached, deformed annular rings to the shell to form the component, so that the plurality of attached, deformed annular rings provide structural reinforcement to the shell.

A method for forming a multilayer structure from a precursor panel having an edge, the method including steps of connecting an attachment member to the precursor panel such that an edge of the attachment member is in alignment with the edge of the precursor panel and applying heat and gas pressure to expand the precursor panel.

Expanded metal sheets (5) are used to produce tubular filters (13). The expanded metal sheet (5) has a multiplicity of rows of openings arranged to reduce nesting when the sheet (5) is rolled on itself. In particular, the pitch between the rows of openings, the sizes of the openings, or both the pitch between the rows of openings and the sizes of the openings are varied to reduce nesting when the expanded metal sheet (5) is rolled on itself. The filters (13) can include external circumferential grooves (3), rounded corners (19) produced by a point loading process, textured surfaces (37) between openings, and/or torturous internal paths produced by non-perforated areas of an expanded metal sheet. The expanded metal sheet (5) can be composed of carbon steel coated with a material having a higher heat conductivity, e.g., tin.

Expanded metal sheets (5) are used to produce tubular filters (13). The expanded metal sheet (5) has a multiplicity of rows of openings arranged to reduce nesting when the sheet (5) is rolled on itself. In particular, the pitch between the rows of openings, the sizes of the openings, or both the pitch between the rows of openings and the sizes of the openings are varied to reduce nesting when the expanded metal sheet (5) is rolled on itself. The filters (13) can include external circumferential grooves (3), rounded corners (19) produced by a point loading process, textured surfaces (37) between openings, and/or torturous internal paths produced by non-perforated areas of an expanded metal sheet. The expanded metal sheet (5) can be composed of carbon steel coated with a material having a higher heat conductivity, e.g., tin.

The present disclosure deals with a gas cleaning system (1) for cleaning process flue gas. The gas cleaning system (1) comprises a reactor inlet duct (13) having a longitudinal axis and a reactor duct (14) fluidly connected perpendicularly to the reactor inlet duct and positioned downstream from the reactor inlet duct. The reactor duct likewise has a longitudinal axis. Within the reactor duct is a gas cleaning device (20), such as a catalytic reactor, and a gas flow rectifier (30) for rectifying flue gas flow from the reactor inlet duct (13) into the reactor duct (14). The gas flow rectifier is arranged in the reactor duct upstream of the gas cleaning device (20), wherein the gas flow rectifier (30) comprises at least one expanded screen (30a).

The present disclosure deals with a gas cleaning system (1) for cleaning process flue gas. The gas cleaning system (1) comprises a reactor inlet duct (13) having a longitudinal axis and a reactor duct (14) fluidly connected perpendicularly to the reactor inlet duct and positioned downstream from the reactor inlet duct. The reactor duct likewise has a longitudinal axis. Within the reactor duct is a gas cleaning device (20), such as a catalytic reactor, and a gas flow rectifier (30) for rectifying flue gas flow from the reactor inlet duct (13) into the reactor duct (14). The gas flow rectifier is arranged in the reactor duct upstream of the gas cleaning device (20), wherein the gas flow rectifier (30) comprises at least one expanded screen (30a).

A method for expanding a rectangular section ring to form a non-rectangular section ring. The method includes heating a rectangular section ring of an alloy to a temperature of between 1000 and 1020 C., preheating an expanding block to a temperature of between 260 and 320 C., nesting the inner circumferential surface of the rectangular section ring on the outer circumferential surface of the expanding block; enabling the expanding block to press the inner circumferential surface of the ring in the radial direction, expanding the inner and outer diameter of the rectangular section ring and decreasing the wall thickness thereof for deforming the rectangular section ring to yield a profiled ring billet, whereby finishing a first expanding; rotating the profiled ring billet for 45 along the central axis, whereby finishing a first rotation; and repeating the expanding process and the rotation to obtain a non-rectangular section ring.

A method for expanding a rectangular section ring to form a non-rectangular section ring. The method includes heating a rectangular section ring of an alloy to a temperature of between 1000 and 1020 C., preheating an expanding block to a temperature of between 260 and 320 C., nesting the inner circumferential surface of the rectangular section ring on the outer circumferential surface of the expanding block; enabling the expanding block to press the inner circumferential surface of the ring in the radial direction, expanding the inner and outer diameter of the rectangular section ring and decreasing the wall thickness thereof for deforming the rectangular section ring to yield a profiled ring billet, whereby finishing a first expanding; rotating the profiled ring billet for 45 along the central axis, whereby finishing a first rotation; and repeating the expanding process and the rotation to obtain a non-rectangular section ring.