摘要:
A method of manufacturing a rotor assembly includes positioning a laminated stack of electric steel sheets with a plurality of conductor bars positioned within longitudinal grooves defined by the laminated stack in a mold, and casting an end ring in place over ends of the conductor bars. In order to cast the end ring in place, heated liquid aluminum is injected into a cavity defining the end ring, and circulated within the cavity and around the ends of the conductor bars to create relative movement between the liquid aluminum and the ends of the conductor bars to heat the conductor bars and flush oxides away from an outer surface of the conductor bars.
摘要:
A system to predict a fatigue life of an aluminum alloy is disclosed herein. The system comprises a computer-readable medium cooperative with micromechanics-based fatigue life models for cyclic multiaxial loading. The fatigue life models predict the fatigue life by processing information received by the system relating to the aluminum alloy and the stress state present in the aluminum alloy. The received information comprises at least one of: a critical shear plane, a damage factor, a hardening factor defined by at least one of a plurality of uniaxial cyclic hardening factor parameters related to probabilistics of defects and microstructure characteristics in the aluminum alloy, an additional hardening factor related to non-proportionality, and thermophysical and mechanical properties of the aluminum alloy. The defects and microstructure characteristics can be calculated using mathematical modeling of casting, solidification and heat treatment processes or by an extreme value statistics based on metallography measurements.
摘要:
A biomedical member having high strength, high toughness and high hardness and an artificial joint that uses the same are provided. In addition, a biomedical member that exhibits high wear resistance even in in vivo environment and an artificial joint are provided.Such a composite ceramic is used that contains 65% by weight or more Al2O3, 4 to 34% by weight of ZrO2 and 0.1 to 4% by weight of SrO, while Sr forms a solid solution with part of the ZrO2 grains. The composite ceramics further contains TiO2, MgO and SiO2 as sintering additives, while controlling the amounts to 0.20% by weight or more SiO2, 0.22% by weight or more TiO2 and 0.12% by weight or more MgO, and the total amount of SiO2, TiO2 and MgO within a range from 0.6 to 4.5% by weight.
摘要:
A process for cleaning and coating CVT bands includes a precleaning step, an argon sputtering step, a bond layer deposition step, and a final layer deposition.
摘要:
A continuously variable transmission (CVT) includes an aluminum housing member having a bore formed therein. A rotatable pulley member is supported on a bearing within the bore. The bore includes a layer of thermal spray coating for improved wear resistance so that the bore supports the bearing without a steel sleeve therebetween.
摘要:
A cast iron exhaust manifold having an inside surface covered with a ceramic coating comprising, by weight, about 30% to about 70% unfused silica, about 5% to about 30% magnesia, about 5% to about 20% alumina and about 3% to about 10% sodium oxide. The coating will preferably be built up in multiple layers at least one of which is relatively porous and another is relatively dense resulting from vacuum degassing of the slurry used to deposit the coating.
摘要:
Mold for permanent mold casting having a RPVD ceramic coating atop a mold surface which is textured to provide a specific microtopography suitable for eliminating misruns in the casting.
摘要:
A pressure casting machine having a shot sleeve including a highly thermally conductive metal tube having an erosion-resistant and wear-resistant cermet interatomically bonded to the inside surface of the tube may be made by using an explosive compaction and bonding process.
摘要:
FIG. 1 is a front, right and bottom perspective view of a whisk, showing my new design; FIG. 2 is a rear, left and top perspective view thereof; FIG. 3 is a right side view thereof; FIG. 4 is a left side view thereof; FIG. 5 is a front view thereof; FIG. 6 is a rear view thereof; FIG. 7 is a top plan view thereof; FIG. 8 is a bottom plan view thereof; and, FIG. 9 is a perspective view of the design in a using state. The broken lines shown in the drawings illustrate portions of the whisk that form no part of the claimed design.
摘要:
An electrically-insulative coating for minimizing an electrical conductivity of a metal substrate includes a polymer component formed from a monomer precursor, and a powder component substantially dispersed in the polymer component. The powder component is present in the electrically-insulative coating in an amount of from about 5 parts to about 80 parts by weight based on 100 parts by weight of the electrically-insulative coating. The electrically-insulative coating does not substantially degrade when exposed to from about 100 V to about 330 V at a temperature of from about −50 ° C. to about 500 ° C., and has a dielectric strength of at least about 2,000 VAC/mil. An electrically-insulative coating system and a method of forming an electrically-insulative coating on a metal substrate are also disclosed.