Abstract:
The invention relates to a method and a device for demounting a turbine blade (1) out of an axial groove (3) of a rotor (8) or stator. The turbine blade (1) is demounted with a hydraulic device (9, 10) by means of a hooked slide (4) which is located in a gap (7) between the blade base of the blade root (2) and the groove bottom of the axial groove (3). At the same time, the hooks (5) of the hooked slide (4) engage into clearances which are located at the blade root (2).
Abstract:
A method for repairing worn brake assembly holes on a highway trailer axle assembly including a cam shaft hole, and first and second anchor pin holes and including an axle stub extending from an end thereof, comprising the steps of aligning a boring tool, having a tool axis, with each brake assembly hole axis by aligning the tool axis parallel with the stub axis; positioning the tool axis at a distance from the stub axis equal to the distance of the brake assembly hole axis from the stub axis; and positioning the tool axis at an angular position relative to the brake assembly hole axis that is equal to the angular position of the brake assembly hole axis relative to the axis of another of the brake assembly holes. The aligned boring tool is then driven to bore an oversize hole through the worn brake assembly hole such that the worn brake assembly hole, including any worn extremities thereof, is consumed by the oversize hole, leaving a substantially cylindrical oversize hole. An oversize bushing is installed in the oversize hole having an inner diameter suitable to accommodate a brake cam shaft or anchor pin therethrough. An apparatus is also provided.
Abstract:
A tip material for a turbine blade or for repairing a damaged tip of a turbine blade having a metallic coating, the material used for the tip is equivalent in composition to the metallic coating material used for the turbine blade. Also disclosed is a method of manufacturing or repairing a tip of a turbine blade having a metallic coating by reforming the blade tip with a material equivalent in composition to the metallic coating material used for the turbine blade by bonding the material to the damaged tip.
Abstract:
In a soldering process for treating tears, recesses, or other material defects in the surface of thermally and mechanically highly stressed components of gas turbines, a nickel foam is applied together with the soldering powder, which can also be mixed with another filler. After this, a heat treatment of the soldering process is performed.
Abstract:
A compressor has a housing assembly and at least one rotor held by the housing assembly for rotation about a rotor axis. The rotor has a first face and a first housing element has a second face in facing spaced-apart relation to the first face of the rotor. The housing has a coating on the second face and a plurality of inserts protruding from the second face into the coating.
Abstract:
Ion-enhanced physical vapor deposition is utilized to deposit repair material on Ti alloy turbine parts. Pulse modulation may be used to control a bias voltage and an ionization.
Abstract:
An elastic roller casing is replaced on a roller core by first removing the casing and a portion of a fastening layer, thereby reducing at least part of the fastening layer in thickness, centering a new casing on the core over the partly removed fastening layer, and then filling any remaining intermediate space between the partly removed fastening layer and the casing with a material to connect the casing to the partly removed fastening layer.
Abstract:
Methods in accordance with the present invention can be used to assemble or rework a rotary actuator assembly for a media data storage device having one or more disks. One such method for assembling a rotary actuator assembly includes connecting at least one arm to a mounting block wherein the mounting block includes a bore and a spacer, the spacer having threaded holes on a top surface and a bottom surface in order to receive screws. This description is not intended to be a complete description of, or limit the scope of, the invention. Other features, aspects, and objects of the invention can be obtained from a review of the specification, the figures, and the claims.
Abstract:
A spindle device of a machine tool such as a milling machine and a machining center and a method of replacing a spindle, the spindle device wherein the housing of a spindle head (5) is divided into a front housing (23) and a rear housing (25), a spindle (7) is installed in the front housing (23) through front bearings (9), and a built-in motor rotor (43), a bearing case (33) through rear bearings (11), and a draw bar (51) for clamping a tool are installed on and in the spindle (7) to form a front housing unit (93); the method comprising the step of replacing the spindle (7) and the bearings by replacing the front housing unit (93), whereby, when the spindle device comes out of order, the spindle and bearings can be easily replaced in a short time and the stop time of the machine tool can be minimized at a site where the machine tool is used.
Abstract:
A heat sink is constructed including at least one thermally conductive pedestal, allowing configuration of the heat sink to make contact with a plurality of heat-generating electronic devices where the devices may not be co-planar due to tolerance stack-up. The pedestals may be raised and lowered and tilted as needed to match the heights and tilts of the electronic devices. Within the heat sink is a cavity above the pedestal that may be filled with a thermally conductive material, such as solder, or a thermally conductive liquid, during construction to create a low thermal resistance contact between the pedestal and the heat sink fins. Also, thermally conductive material, such as thermal paste or a thermal pad, may be used between the heat generating device and the pedestal to create a low thermal resistance contact.