An intelligent control clogging-free water-cooled multifunctional pump includes a housing, a U-shaped water-through tank, a motor, an axial flow style cover plate, a flexible rubber conical impeller, a double-channel conical diffuser, a filter and an intelligent water level controller. The motor is placed inside the housing. The motor is provided with a control board. The U-shaped water-through tank is placed under the housing. The flexible rubber conical impeller is coaxially connected to the motor. The axial flow style cover plate is placed at the bottom of the U-shaped water-through tank. The double-channel conical diffuser is disposed under the cover plate and the conical pattern of the flexible rubber impeller is consistent with those disposed on the double-channel diffuser.

There is provided a rotation part of a rotary machine, the rotation part including: a base unit including a surface constituting fluid channels; a plurality of blade units protruding from the base unit; a plurality of shroud segment support units connected to the plurality of blade units and extending in a parallel direction to the surface of the base unit; a shroud segment disposed between and bonded to adjacent shroud segment support units of the plurality of shroud segment support units; and a first reinforcing unit provided on an intersection portion between a blade unit of the plurality of blade units and a shroud segment support unit of the plurality of shroud segment support units, wherein a distance from a protruding direction center line of the blade unit to an end portion of the shroud segment support unit is greater than a maximum distance from the protruding direction center line of the blade unit to an end portion of the first reinforcing unit.

A wear resistant material is manufactured from a Ni-based alloy powder and an additive. The Ni-based alloy powder includes the following components in mass fraction: C: 0.11.1%, Si: 0.56.0%, Fe: 2.515.0%, B: 0.25.0%, CrB.sub.2: 6.026.0%, and the balance of Ni. The Ni-based alloy powder is employed as the main component and CrB.sub.2 and WC are added, thus improving the wear resistance of the wear resistant material. Experimental data show that, the wear resistant material provided in the present disclosure has the hardness up to 7080 HRC and excellent wear resistance. A wear resistant impeller can be manufactured from the wear resistant material.

A centrifugal pump includes a blade arrangement. The blade arrangement has a carrier unit on which blades are arranged. The blade arrangement also has cell units that enclose cavities, the cell units being formed by walls.

A component of a rotary machine formed from a blank, the component includes a center, a boundary surface, and at least one inner passage extending from the center up to the boundary surface and being at least partly closed. The inner passage is formed by a first subtractive machining in which a part of the passage that at least includes an opening of the passage into the boundary surface as well as a cut-out in the top surface is manufactured by machining production, and subsequently the passage is completed by a build-up production on the blank.

A flow-conducting component having at least one functional region for contact with a flowing medium and at least one functional region having supporting characteristics is provided. The two functional regions are produced from a material by successively solidifying layers using radiation in a manner that provides different material characteristics in the different functional regions.

A composite metal centrifugal slurry pump impeller including aback shroud with opposed inner and outer faces with an outer peripheral edge and a central axis, a plurality of pumping vanes extending away from the inner main face of the back shroud, the pumping vanes being disposed in spaced apart relation, each pumping vane including opposed main side faces, a leading edge in the region of the central axis and a trailing edge in the region of the outer peripheral edge of the back shroud with a passageway between adjacent pumping vanes, wherein one or more cavities are located in the back shroud in the region of at least one of the passageways and wherein a wear resistant composition is bonded at least partially within the one or more cavities.

An aerodynamic vane insert configured to reproduce at least an aerodynamic vane of a finished centrifugal impeller and a method for building a centrifugal impeller for a turbomachine.

Embodiments of the invention are directed to a rotor for a molten metal pump and a molten metal pump including the rotor. The rotor has a main body and a top comprised of a material that is at least twice as hard as the main body. The top, among other things, may form a first portion of each rotor blade wherein the first portion directs molten metal into a pump chamber or other structure in which the rotor is mounted.

A pump is provided that includes a molded stator having a substrate on which is mounted a magnetic-pole position detection element and that also includes a rotor having a rotor unit with one end thereof in an axial direction being opposed to the magnetic-pole position detection element and the other end thereof in the axial direction being provided with an impeller attachment unit. The rotor unit includes a magnet, a sleeve bearing, and a resin portion formed from a thermoplastic resin that is used for integrally molding the magnet and the sleeve bearing and that constitutes the impeller attachment unit. The magnet includes a plurality of through holes that each extend in the axial direction; and each of the through holes is embedded in the thermoplastic resin that constitutes a part of the resin portion.