A method, performed by a centrifuge, for treating toughness and hardness of drill bit buttons is provided. The centrifuge comprises a chamber formed by a stationary side wall and a bottom which is rotatable around a rotation axis, the bottom comprising one or more protrusions which at least partly extends between the rotation axis and the side wall, the side wall comprising at least six pushing elements arranged around a periphery of the side wall. The method comprises rotating, by rotation of the bottom with the protrusions, the drill bit buttons around the rotation axis, pushing, by the pushing elements, the drill bit buttons from the side wall during the rotation of the bottom, collectively forming the drill bit buttons into a torus shape at the bottom of the chamber for inducing collisions between the drill bit buttons, thereby treating the toughness and hardness of the drill bit.

A method includes providing a metal ring and pastelessly slide-grinding at least one surface of the metal ring with grinding bodies, preferably until a predefined surface topography of the metal ring is achieved, which surface topography preferably has an Rsk value that is greater than or equal to 0.25 and/or an Rk value between 0.3 and 1.35 and/or Rpk value between 0.05 and 0.4 and/or an Rvk value between 0.2 and 1.2 and/or an Ra value between 0.1 and 0.4.

A robotic processing system and method are disclosed for processing materials using a series of containers stored in an automated storage and picking system. Each of the containers performs a specific function on the materials stored therein. The materials are passed from bin to bin via a suitable dispensing and transferring system. For example, a system is disclosed for delivering ingredients to a micro-brewery, as are methods for brewing small or test batches of beer according to customers' individual requirements.

A method for the surface finishing of workpieces moves the workpiece, including rotating about at least one axis, relative to a bed of a granular grinding and/or polishing material. The workpiece is accelerated to different speeds of rotation in relation to the bed of the granular grinding/polishing material. The workpiece or a container containing the bed of granular grinding/polishing material to be accelerated in periodic cycles of at most 5 sec between speeds of rotation and a second speed of rotation and/or to be rotated during continual acceleration at continually different speeds of rotation. A device for carrying out the method, such as a drag- or dip-finishing machine, includes a control device to impose speed of rotation profiles of the aforementioned type on a rotary drive workpiece holders, on which the workpieces can be clamped, or on a container containing the bed of granular material during the operation.

A method for the surface finishing of workpieces moves the workpiece, including rotating about at least one axis, relative to a bed of a granular grinding and/or polishing material. The workpiece is accelerated to different speeds of rotation in relation to the bed of the granular grinding/polishing material. The workpiece or a container containing the bed of granular grinding/polishing material to be accelerated in periodic cycles of at most 5 sec between speeds of rotation and a second speed of rotation and/or to be rotated during continual acceleration at continually different speeds of rotation. A device for carrying out the method, such as a drag- or dip-finishing machine, includes a control device to impose speed of rotation profiles of the aforementioned type on a rotary drive workpiece holders, on which the workpieces can be clamped, or on a container containing the bed of granular material during the operation.

A glass bubble includes a hollow glass body having an outer surface with a diameter of between about 16 micrometers and about 25 micrometers and a surface roughness of about 0.01% to about 0.1% of that diameter. A low density sheet molding compound incorporating a plurality of glass bubbles and resin is also disclosed.

A glass bubble includes a hollow glass body having an outer surface with a diameter of between about 16 micrometers and about 25 micrometers and a surface roughness of about 0.01% to about 0.1% of that diameter. A low density sheet molding compound incorporating a plurality of glass bubbles and resin is also disclosed.

A method is provided for pretreating a thick-film aluminum electrode. The pretreatment is processed before subsequent metal plating. the thick-film aluminum electrode is pretreated with a purely mechanical or chemical treatment or a mixture of mechanical and chemical treatments; the chemical treatment is an alkaline/acid washing or a chemical anodizing; The surface of the thick-film aluminum electrode is made even and alumina, a nonconductive substance, on the surface is removed. The thick-film aluminum electrode has a surface with evenness and low oxygen content. The thick-film aluminum electrode has similar quality as the thick-film electrode of noble metal silver for subsequent metal plating.

A method is provided for pretreating a thick-film aluminum electrode. The pretreatment is processed before subsequent metal plating. the thick-film aluminum electrode is pretreated with a purely mechanical or chemical treatment or a mixture of mechanical and chemical treatments; the chemical treatment is an alkaline/acid washing or a chemical anodizing; The surface of the thick-film aluminum electrode is made even and alumina, a nonconductive substance, on the surface is removed. The thick-film aluminum electrode has a surface with evenness and low oxygen content. The thick-film aluminum electrode has similar quality as the thick-film electrode of noble metal silver for subsequent metal plating.

A method for outer surface finishing of a workpiece may include coaxially placing the workpiece inside a vessel. The exemplary vessel may include at least one baffle that may radially extend from an inner wall of the vessel toward the outer surface of the workpiece. The exemplary method may further include pouring an abrasive medium inside the vessel, rotating the abrasive medium about the longitudinal axis in a first direction within the vessel relative to the outer surface of the workpiece by rotating the vessel about the longitudinal axis, and concurrently rotating the workpiece within the vessel about the longitudinal axis in a second direction, the second direction being opposite the first direction.