A transmission shaft assembly for a rolling stand for use in a metal rolling mill is provided. The transmission shaft assembly transmits lubricant through the assembly. The transmission shaft assembly includes a shaft having an outer periphery and defining a centrally positioned longitudinal opening extending from a first end to an opposed second end of the shaft. The shaft defines a plurality of internal passageways in the shaft. The transmission shaft assembly also includes a rotary distributor mounted on the outer periphery of the shaft. The shaft assembly provides a conduit for the lubricant through the plurality of internal passageways in the shaft.

A rolling process for long solid-section products includes the steps of rolling stock through a plurality of rolling mill stands, the rolled stock being subjected to a tensile load, between the plurality of stands, that generates a single-axial deformation greater than 0.1 in the rolling direction, and is also deformed by compression between the rolls of at least one of the rolling mill stands, thereby achieving a reduction in the cross section area of at least 5%, preferably of between 5 and 50%. A rolling mill, in which a plurality of stands is connected by spacer elements designed to offset the tensile load; a rolling mill, in which a plurality of stands is connected by elements designed to offset the overturning moment generated by the tensile load; and a rolling mill, in which the aforesaid rolling stands maintain a non-slip condition.

The present invention relates to a tantalum wire for anode lead of tantalum capacitors, characterized in that the cross section of the tantalum wire is approximate rectangular or regular rectangular. The present invention also relates to a process for manufacturing the tantalum wire, comprising the steps of: providing feedstock tantalum wire; subjecting the feedstock tantalum wire to heat treatment; subjecting the heat treated tantalum wire to surface pretreatment to form an oxide membrane on the surface-pretreated tantalum wire; rolling the surface-pretreated tantalum wire by lubricating with lubricant oil to make the cross section of the rolled tantalum wire being approximate rectangular or regular rectangular; subjecting the tantalum wire to final annealing.

The present invention relates to a tantalum wire for anode lead of tantalum capacitors, characterized in that the cross section of the tantalum wire is approximate rectangular or regular rectangular. The present invention also relates to a process for manufacturing the tantalum wire, comprising the steps of: providing feedstock tantalum wire; subjecting the feedstock tantalum wire to heat treatment; subjecting the heat treated tantalum wire to surface pretreatment to form an oxide membrane on the surface-pretreated tantalum wire; rolling the surface-pretreated tantalum wire by lubricating with lubricant oil to make the cross section of the rolled tantalum wire being approximate rectangular or regular rectangular; subjecting the tantalum wire to final annealing.

A method for shaping a wire material that moves from the upstream side to the downstream side includes a first step of feeding the wire material while pressing the wire material by a first roller group including a plurality of rollers driven by a motor and a second step of feeding the wire material while pressing the wire material by a second roller group including a plurality of rotatably supported rollers. The first step is provided upstream side of the second step, and a push-in amount that is the difference between the outer dimension of the wire material and the gap between rollers through which the wire material passes is larger in the first step than in the second step.

A method for shaping a wire material that moves from the upstream side to the downstream side includes a first step of feeding the wire material while pressing the wire material by a first roller group including a plurality of rollers driven by a motor and a second step of feeding the wire material while pressing the wire material by a second roller group including a plurality of rotatably supported rollers. The first step is provided upstream side of the second step, and a push-in amount that is the difference between the outer dimension of the wire material and the gap between rollers through which the wire material passes is larger in the first step than in the second step.

The present invention mainly relates to the technical field of extruding, rolling and drawing metal wire or rod, in particular to a method for rolling metal wire or rod with assistance of combined static magnetic field, characterized in that, a combined static magnetic field is applied before and during extrusion and pulling of a metal wire or rod. A specific method is: providing, in a moving direction of a metal wire or rod, a gradient static magnetic field generated by a combination of a permanent magnet and a steady electromagnet; and after a raw material for rolling the metal wire or rod is processed by the gradient static magnetic field, performing rolling extrusion and pulling on the material. For multiple passes of rolling extrusion and pulling, the static magnetic field processing is performed before each pass of rolling. By means of the method, the deformation resistance of the material is significantly reduced, defects of rolling are decreased, the size accuracy and uniformity of finished products is high, and the mechanical properties, especially strength and toughness, of the material are enhanced, thereby realizing the reinforcement of both the strength and toughness of the material.

The present invention mainly relates to the technical field of extruding, rolling and drawing metal wire or rod, in particular to a method for rolling metal wire or rod with assistance of combined static magnetic field, characterized in that, a combined static magnetic field is applied before and during extrusion and pulling of a metal wire or rod. A specific method is: providing, in a moving direction of a metal wire or rod, a gradient static magnetic field generated by a combination of a permanent magnet and a steady electromagnet; and after a raw material for rolling the metal wire or rod is processed by the gradient static magnetic field, performing rolling extrusion and pulling on the material. For multiple passes of rolling extrusion and pulling, the static magnetic field processing is performed before each pass of rolling. By means of the method, the deformation resistance of the material is significantly reduced, defects of rolling are decreased, the size accuracy and uniformity of finished products is high, and the mechanical properties, especially strength and toughness, of the material are enhanced, thereby realizing the reinforcement of both the strength and toughness of the material.

A guide roller configured to guide a wire to or from a work roller in a wire rolling line includes a rolling-element bearing having a rotatable outer ring, a fixed inner ring, and rolling elements between the outer ring and the inner ring. The outer ring has a profile configured to guide the wire on a radially outer surface thereof. The guide roller is configured as a double row preloaded rolling-element bearing and is installable as a finished component on a fixed shaft of the wire rolling line without adjusting the preload.

A guide roller configured to guide a wire to or from a work roller in a wire rolling line includes a rolling-element bearing having a rotatable outer ring, a fixed inner ring, and rolling elements between the outer ring and the inner ring. The outer ring has a profile configured to guide the wire on a radially outer surface thereof. The guide roller is configured as a double row preloaded rolling-element bearing and is installable as a finished component on a fixed shaft of the wire rolling line without adjusting the preload.