Abstract: A mixing unit includes a mixing body having mixing elements that are stacked in a stacking direction and that extend in an extending direction in which the extending direction is perpendicular to the stacking direction. The mixing elements have a plurality of through holes to form a flow path therein, and are arranged such that part or all of the through holes in one of the mixing elements communicate with through holes in the adjacent mixing elements to allow fluid to be passed in the extending direction in which the mixing elements extend. The mixing unit may be employed in an agitation impeller or an adhesive dispensing unit.

Abstract: A mixing unit includes a mixing body having mixing elements that are stacked in a stacking direction and that extend in an extending direction. The mixing elements have a plurality of first through holes to form a flow path therein, and are arranged such that part or all of the first through holes in one of the mixing elements communicate with first through holes in the adjacent mixing elements to allow fluid to be passed in the direction in which the mixing element extends.

Abstract: A method for manufacturing a structure in which an edge portion of the structure formed by stacking a plurality of members is friction stir welded. The manufacturing method includes: a welding step of forming a friction stir welded portion by bringing a friction stir welding tool from a side of a surface of a member on one side into contact with a superposition portion of works in which the members are stacked while rotating the friction stir welding tool; and a cutting step of cutting the friction stir welded portion, and in each of two or more works produced by the cutting, a welded portion of the edge portion of the structure is formed with the cut friction stir welded portion.

Abstract: A mixing unit has a stacked member having mixing elements that are stacked in a stacking direction and that extend in an extending direction, a first plate, and a second plate disposed opposite the first plate. The stacked member is sandwiched between the first plate and the second plate. Each of the mixing elements has first through holes. The second plate comprises an opening portion that communicates with the first through holes in the stacked member.

Abstract: A friction stir processing apparatus comprises a tool, a processing head retaining the tool, a support table retaining the workpiece, and a cylinder unit biasing the support table toward the tool. The tool having a probe projecting from a shoulder surface, for performing friction stir processing on a workpiece made of a metal material. The processing head is pressing the tool against the workpiece so as to relatively shift the tool in a processing direction. The friction stir processing apparatus comprises load control means for controlling to constantly keep the bias force of the cylinder unit so as to constantly keep pressurizing force of the tool pressing the workpiece. It is thus possible to perform friction stir processing with excellent quality even when the workpiece has a different thickness or is made of a different material.

Abstract: A friction stir processing tool is formed from a Ni-based dual multi-phase intermetallic compound alloy containing rhenium(Re). The Ni-based dual multi-phase intermetallic compound alloy is preferably formed by casting, while gradually cooling, a melt containing all the components of the composition and is preferably heat treated after casting. Moreover, in a method for friction stir processing, a work is softened by friction heat generated when the friction stir processing tool, while rotating, is pressed against the work to be processed. The friction stir processing tool includes the Ni-based dual multi-phase intermetallic compound alloy, and therefore further high hardness is exhibited to improve abrasion resistance, so that even a long period of friction stir processing can be endured.

Abstract: A mixing unit has a stacked member having mixing elements that are stacked in a stacking direction and that extend in an extending direction, a first plate, and a second plate disposed opposite the first plate. The stacked member is sandwiched between the first plate and the second plate. Each of the mixing elements has first through holes. The second plate comprises an opening portion that communicates with the first through holes in the stacked member.

Abstract: Provided are a friction processing tool in which a service life of the tool is improved and which can reduce a labor hour for manufacturing and a manufacturing cost, and a friction processing apparatus and a friction processing method using the same. In a friction working tool 20 for softening and processing workpieces W1 and W2 of a metal material by frictional heat generated by being pressed against the workpieces while being rotated, a cylindrical tool body 21 is provided, and a distal end surface of the tool body brought into contact with the workpieces W1 and W2 is formed only by a flat shoulder surface 22. The material of the friction processing tool 20 is made of Ni-based dual multi-phase intermetallic compound alloys.

Abstract: A mixing unit and various applications of the mixing unit are described herein. The mixing unit includes: a stacked member in which three or more mixing elements are stacked; and a first plate and a second plate between which the stacked member is sandwiched and which are arranged opposite each other. In the mixing unit, the mixing elements have a plurality of first through holes, the second plate has an opening portion communicating with at least one of the first through holes in the mixing elements and the mixing elements are arranged such that part or all of the first through holes in one of the mixing elements communicate with other first through holes in the adjacent mixing element to allow fluid to be passed in a direction in which the mixing elements extend.

Abstract: A friction stir processing apparatus comprises a tool, a processing head retaining the tool, a support table retaining the workpiece, and a cylinder unit biasing the support table toward the tool. The tool having a probe projecting from a shoulder surface, for performing friction stir processing on a workpiece made of a metal material. The processing head is pressing the tool against the workpiece so as to relatively shift the tool in a processing direction. The friction stir processing apparatus comprises load control means for controlling to constantly keep the bias force of the cylinder unit so as to constantly keep pressurizing force of the tool pressing the workpiece. It is thus possible to perform friction stir processing with excellent quality even when the workpiece has a different thickness or is made of a different material.

Abstract: A friction stir processing tool is formed from a Ni-based dual multi-phase intermetallic compound alloy containing rhenium(Re). The Ni-based dual multi-phase intermetallic compound alloy is preferably formed by casting, while gradually cooling, a melt containing all the components of the composition and is preferably heat treated after casting. Moreover, in a method for friction stir processing, a work is softened by friction heat generated when the friction stir processing tool, while rotating, is pressed against the work to be processed. The friction stir processing tool includes the Ni-based dual multi-phase intermetallic compound alloy, and therefore further high hardness is exhibited to improve abrasion resistance, so that even a long period of friction stir processing can be endured.

Abstract: A mixing unit, a mixing device, an agitation impeller and a pump mixer can mix a large amount of fluid while having significant mixing effects in a small space. There are also provided a mixing system that uses the pump mixer and achieves a continuous operation and a reaction device that uses the mixing unit and achieves an efficient operation. The mixing unit (1) includes: a stacked member (2) in which a plurality of mixing elements (21) are stacked; and a first plate (3) and a second plate (4) between which the stacked member (2) is sandwiched and which are arranged opposite each other.

Abstract: In a fastening tool in which fastening members may be inclined as they are threadedly inserted together whereby almost no displacement load is applied to the members, a member having a bolt through hole with a tapered seat surface, and a fastening bolt that includes a bolt body provided about its outer periphery with a male thread, and a head provided on an end of the bolt body that has a diameter greater than that of the bolt body, in which the head has a lower outwardly curved tapered surface whose diameter is reduced toward the bolt body so that the lower surface abuts against the tapered seat surface when the fastening tool is used.

Abstract: A friction drive unit for moving a table along a rail comprising: a pair of drive rollers for sandwiching a guide rail therebetween, one of the pair of the drive rollers being connected to a drive source; a pair of reverse rollers attached to roller shafts of the respective drive rollers so as to transmit rotation of the one drive roller connected to the drive source to the other drive roller; and two arm portions formed integrally with or separately from one another, the pair of the drive rollers being pivoted on the arm portions, respectively, wherein the two arm portions are resiliently deformable in such directions as to approach and move away from each other and are provided so that the pair of the drive rollers produce pressing forces to the guide rail.

Abstract: In a punching apparatus comprising: a punching station A for punching a large number of sheet products by a punching die 20 from a long material sheet 1 which is transferred in a horizontal direction; and a take-out station for taking out the sheet product punched by the punching die 20, wherein the punching die 20 has a structure that a blade portion of a tip end peripheral edge of a vertically penetrating die hole is brought into contact with the material sheet 1 under pressure, thereby sequentially punching the sheet products from the material sheet 1 and accommodating the sheet products in the die hole in a laminated state, and the take-out station includes an extrusion pusher for pushing out the sheet products which are accommodated in the laminated state from the die hole 28, the punching die is disposed below a transfer region of the material sheet to prevent the sheet product from falling onto the material sheet 1 from the die hole.

Abstract: The present invention provides a fastening tool in which even when two members are inclined as the members are threadedly inserted, a displacement load is not applied to the members almost at all. A fastening bolt 1 of the fastening tool includes a rod-like bolt body 10 provided at its outer periphery with a male thread 11, and a head 20 provided on an end of the bolt body 10 and having a diameter greater than that of the bolt body 10. A lower surface of the head 20 is a tapered surface whose diameter is reduced toward the bolt body 10 so that the lower surface abuts against a tapered seat surface 31 of the first member 3 provided with a bolt through hole 31. This tapered surface is formed into a tapered curved surface 21 finished into a curved surface.

Abstract: A needle roller bearing includes a plurality of needle rollers that each have first and second end portions and that are disposed circumferentially around a shaft, a cylindrical first retainer member having a plurality of first notches each respectively adapted to rotatably support the first end portion of a respective one of the rollers, and a cylindrical second retainer member located spaced apart from and opposite the first retainer member and having a plurality of second notches each respectively adapted to rotatably support the second end portion of a respective one of the rollers. A plurality of voids are provided to form grease-containing spaces between the adjacent rollers and between the first and second retainer members so that the roller bearing is sufficiently lubricated.

Abstract: A guide apparatus (1) slidably supports a shaft member (2) and a column (3) relative to each other. The column (3) has a through hole (3a) formed therein and the shaft member (2) penetrates the through hole (3a). In the column (3), there is provided a slide mechanism (5) formed of a plurality of cylindrical rolling elements (50) adapted to roll axially on an outer circumference (2a) of the shaft member (2). The column (3) is formed of a plurality of split members (31, 32, 33, 34) that are divided on sectional planes each perpendicular to the axial direction of the column (3). A plurality of positioning pins (9) are provided on each contact surface of the adjacent split members (31, 32, 33, 34). The adjacent split members are centered or positioned relative to one another by the positioning pins (9).

Abstract: A shutter panel (10) in which respective longer sides of slats (12) made of synthetic resin are connected through hinge mechanisms to be freely bendable manner, wherein the hinge mechanisms include one hinge member and another hinge member. Each hinge member has a connecting groove that is opened outwardly. By fitting and coupling the longer sides of the slats into the connecting grooves respectively, smooth opening and closing of the shutter panel (10) can be performed because of decreasing warpage or irregularities in thickness of slats (12) or the hinge members and enabling smooth bending of respective slats (12) connected by the hinge mechanisms.