A pipe coating material removal apparatus, comprising a support frame, a subframe, and one or more coating material removal members. The subframe is supported by the support frame and is configured to rotate relative to the support frame at least partially around a subframe rotation axis. The subframe rotation axis is configured to be substantially coaxial with a longitudinal axis of a pipe to which the apparatus may be applied in use. The, or each, coating material removal member is rotatably mounted to the subframe to remove part of an exterior coating of a pipe. The apparatus is configured such that the one or more coating material removal members enable the removal of pipe coating material at orientations substantially parallel to, and inclined with respect to, the longitudinal axis of the pipe.

A pipe coating material removal apparatus, comprising a support frame, a subframe, and one or more coating material removal members. The subframe is supported by the support frame and is configured to rotate relative to the support frame at least partially around a subframe rotation axis. The subframe rotation axis is configured to be substantially coaxial with a longitudinal axis of a pipe to which the apparatus may be applied in use. The, or each, coating material removal member is rotatably mounted to the subframe to remove part of an exterior coating of a pipe. The apparatus is configured such that the one or more coating material removal members enable the removal of pipe coating material at orientations substantially parallel to, and inclined with respect to, the longitudinal axis of the pipe.

A method for cylindrical grinding of cylindrical workpieces on a grinding machine, in which an axes of rotation of a grinding disc and of the workpiece are aligned in parallel to one another and the grinding disc is moved relative to the workpiece in a longitudinal-axial direction of the workpiece during the grinding process. A first grinding disc is followed by a second grinding disc at a continuously constant distance. The distance is determined by the width of the first grinding disc and the remaining grinding parameters, such as the rotational speeds of the first grinding disc and of the workpiece and the feed rate in the longitudinal-axial direction, such that the second grinding disc grinds the helical error lines generated by the first grinding disc during the grind process. A control device adjusts the distance between the first and second grinding discs.

The present invention relates to a chemical mechanical polishing (CMP) apparatus for polishing a workpiece, such as a metal body, to a mirror finish. The chemical mechanical polishing apparatus includes: a polishing pad (2) having an annular polishing surface (2a) which has a curved vertical cross-section; a workpiece holder (11) for holding a workpiece (W) having a polygonal shape; a rotating device (15) configured to rotate the workpiece holder (11) about an axis of the workpiece (W); a pressing device (14) configured to press a periphery of the workpiece (W) against the annular polishing surface (2a); and an operation controller (25) configured to change a speed at which the rotating device (15) rotates the workpiece (W) according to a rotation angle of the workpiece (W). The pressing device (14) is disposed more inwardly than the workpiece holder (11) in a radial direction of the polishing table (3).

Embodiments of the present disclosure relate generally to an apparatus and method for treating a rotatable component. An apparatus according to the present disclosure can include: a sliding engagement member configured to slidably engage a portion of a rotating component that is temporarily stationary; and a tool engaging member for positioning a machining tool relative to the rotating component to machine a surface of the rotating component, wherein the tool engaging member is rotatable to one of a plurality of angles relative to the sliding engagement member.

Embodiments of the present disclosure relate generally to an apparatus and method for treating a rotatable component. An apparatus according to the present disclosure can include: a sliding engagement member configured to slidably engage a portion of a rotating component that is temporarily stationary; and a tool engaging member for positioning a machining tool relative to the rotating component to machine a surface of the rotating component, wherein the tool engaging member is rotatable to one of a plurality of angles relative to the sliding engagement member.

A method for preparing a multilayer metal composite pipe includes steps of: internally and externally grinding blank pipes; cleaning oil stains; assembling a multilayer metal pipe; drawing to reduce a diameter; performing high-speed friction welding at the pipe ends; performing heat treatment; performing four-roller cross-rolling; straightening; performing two-roller cold-rolling; performing cold-drawing to reduce the diameter; performing cold-expansion to reduce the diameter; performing precise cold-rolling; degreasing; brightening; performing surface grinding; cleaning dust; detecting multilayer metal interface bonding; detecting flaws; testing metal structure performance; and sizing and packaging. By cycling the cold-drawing, the cold-expansion, and the precision cold-rolling, key indicators such as product dimensional accuracy, surface quality, material properties, and crystal grain size can be collaboratively controlled, so as to achieve higher accuracy, better performance, and more outstanding extreme specifications. The present invention solves the problem of inconsistent extension due to differences in metal properties.

The present disclosure relates to abrasives surfaces located on an outer diameter of a grinding wheel to provide grinding characteristics of both coarse and fine abrasive textures. The grinding wheel has a coarse abrasive portion located at one disclosure uses a transition band formed at an interface between the abrasive surfaces, that has an abrasive coating with a gradual change in texture from a coarse surface to a fine surface.

The present disclosure relates to abrasives surfaces located on an outer diameter of a grinding wheel to provide grinding characteristics of both coarse and fine abrasive textures. The grinding wheel has a coarse abrasive portion located at one disclosure uses a transition band formed at an interface between the abrasive surfaces, that has an abrasive coating with a gradual change in texture from a coarse surface to a fine surface.

Systems and methods of providing run-time quality control and monitoring of a single or multiple sequencing runs are provided herein. In some embodiments, the run-time system includes or is in communication with a processor capable of determining various types of run-time information relating to the quality, progress, etc. of various sequencing runs. In some embodiments, the system can also be in communication with a user interface, for example, a GUI, capable of representing and communicating various types of information to a user regarding the quality of the individual or multiple runs, the functioning of the instrument, an error event, etc. Additionally, the system can capable of receiving actionable information from a user via the GUI thereby allowing the user to terminate or repeat various sequencing steps in a particular run, terminate a entire run, terminate all runs, allow a run to proceed, etc.