An electrode manufacturing device is provided. The electrode manufacturing device includes a pressing roll configured to apply pressure to an uncoated part of the electrode, wherein the pressing roll comprises a central part, a first end part and a second end part, wherein the uncoated part comprises an insulating coated part and a non-insulating coated part, wherein the first end part is adjacent to a boundary between the insulating coated part and the non-insulating coated part, wherein the second end part is located at a portion far away from the insulating coated part, and wherein a first outer diameter of the central part connected to the first end part is greater than a second outer diameter of the central part connected to the second end part.

A method for grinding a solid in a vertical roller mill (VRM), comprising grinding at least one solid in the presence of a grinding stabilizing additive, wherein the grinding stabilizing additive comprises an alkanol amino acid compound or a disodium or dipotassium salt thereof having the structural formula (I): The definitions of variables R.sup.1, R.sup.2, and R.sup.3 are provided herein. ##STR00001##

A rotary tool ejection technology utilizing air to eject contents from the dies of a rotary cylinder. The dies include orifices positioned therein. The orifices are assembled with porous material. The orifices are capable of receiving air from an internal chamber and delivering it to the outer surface of a rotary cylinder. Air is supplied to the internal chamber by an internal shaft. The internal shaft contains a channel in fluid communication with outlets extending radially outward from the channel to locations on the outer surface of the shaft. The shaft is optionally assembled with a manifold having a conduit. The conduit is positioned for intermittent alignment with the orifices in the rotary cylinder as the rotary cylinder rotates relative to the manifold.

This application discloses cold rolled surfaces having a dulled gloss finish. The finish has a fairly uniform glossiness with a slightly matted appearance and with minimal directionality. The surfaces are prepared from work rolls having an Ra value of from 0.2 to 0.4 μm and an Rz value of less than 3.0 μm. Methods of preparing the surfaces are also described herein.

This application discloses cold rolled surfaces having a dulled gloss finish. The finish has a fairly uniform glossiness with a slightly matted appearance and with minimal directionality. The surfaces are prepared from work rolls having an Ra value of from 0.2 to 0.4 μm and an Rz value of less than 3.0 μm. Methods of preparing the surfaces are also described herein.

The object of providing a method for conditioning a working roll with which the material properties of a working roll can be set in a process-reliable and uniform manner is achieved by a method in which a roll and at least one pressure tool are rotated relative to each other, in which pressure is applied locally to the roll by means of the at least one pressure tool, comprising at least one pressure element, via the at least one pressure element, and in which a deep rolling process is carried out.

A rolling stand is provided for producing a rolled strip having working rolls which are supported on supporting rolls or intermediate rolls and supporting rolls, wherein the working rolls and/or intermediate rolls and/or supporting rolls are arranged in the rolling stand so as to be displaceable axially relative to one another, and each roll of at least one roll pair formed from a supporting roll and a working roll or from a supporting roll and an intermediate roll has a curved contour which runs over the entire effective barrel length, wherein the contour of the supporting roll is predefined by a contour function which is formed from a superposition of a first contour function, which runs in a manner complementary to the adjacent working roll in a non-displaced state, with a superposition function which is concave or convex in relation to the supporting roll axis.

In a multi-roll table ring-rolling mill and method, a mandrel roll can be switched from a rolling state into a free-running state, when a predetermined ring diameter is reached, even if the roll gap minimum has not yet been reached, in order to improve the size accuracy of the rolled rings. A mandrel roll table rotating about a mandrel table axle is used, along with at least one main roll rotating about a main roll axle and first and second mandrel rolls that are mounted in the mandrel roll table, and a relief device to relieve at least the first mandrel roll of rolling forces. The main roll axle and the mandrel roll table axle are mounted in unchangeable manner and eccentric to one another, at least during the rolling process. The relief device acts independent of the main roll axle and the mandrel roll table axle are eccentric to one another.

A method for producing a metal sheet with raised lines uses a rolling mill including a roll stand and produces a metal sheet including, on each of an upper surface and a lower surface, a plurality of raised lines extending in a rolling direction. The method includes a preparing step, an incorporating step, and a forming step. In the preparing step, grooved rolls are prepared, each of the grooved rolls including a plurality of grooves in an outer peripheral surface. In the incorporating step, the grooved rolls are incorporated in the roll stand as an upper roll and a lower roll, respectively. In the forming step, a workpiece is rolled by the rolling mill and is formed into a metal sheet with raised lines formed corresponding to the respective grooves of the grooved rolls.

A method for producing a metal sheet with raised lines uses a rolling mill including a roll stand and produces a metal sheet including, on each of an upper surface and a lower surface, a plurality of raised lines extending in a rolling direction. The method includes a preparing step, an incorporating step, and a forming step. In the preparing step, grooved rolls are prepared, each of the grooved rolls including a plurality of grooves in an outer peripheral surface. In the incorporating step, the grooved rolls are incorporated in the roll stand as an upper roll and a lower roll, respectively. In the forming step, a workpiece is rolled by the rolling mill and is formed into a metal sheet with raised lines formed corresponding to the respective grooves of the grooved rolls.