摘要:
A searchable index is created using a query process and an indexing process. The query process cooperates with the indexing process to catalogue items that are located within a specified search scope. Previously indexed items are evaluated to ensure that their indexes are up-to-date. Items that are out-of-date have unreliable indexes that should be updated. Items to be indexed within the specified search scope are grouped in batches for processing. As processing of each batch is completed their respective indexing results become available such that partially indexed search scopes are useable while the indexing process continues. Since indexing results trickle in on an ongoing basis, users are permitted to process and/or view indexing results without waiting for the complete indexing process to be completed.
摘要:
A deposition apparatus includes a coating chamber and a coating zone within the coating chamber for coating work pieces. A heating source heats the coating zone, and a thermal hood within the coating chamber is located adjacent to the coating zone for controlling a temperature of the coating zone.
摘要:
A clinch-type fastener is formed by simultaneously creating an undercut during the same forging that creates the head and displacer of the fastener. A fastener blank is compressed end-to-end between top and bottom dies whereby the axial compression of a blank causes the outward bulging of the shank at its midline. Simultaneously, a tapered end point and a tangential interference band are formed provided by a curvilinear-shaped bulge in the shank. As the bulge is formed an undercut is created between the bulge and a shoulder which extends downwardly from a head of the fastener. This method of formation and the fastener produced thereby are particularly suited to the manufacture of small clinch pins having a diameter in the range of 1.0 mm.
摘要:
A turbine engine component has a substrate, a thermal barrier coating deposited onto the substrate, and a sealing layer of ceramic material on an outer surface of the thermal barrier coating for limiting molten sand penetration.
摘要:
A turbine engine component has a substrate, a thermal barrier coating deposited onto the substrate, and a sealing layer of ceramic material on an outer surface of the thermal barrier coating for limiting molten sand penetration.
摘要:
A turbine engine component is provided which has a substrate and a thermal barrier coating applied over the substrate. The thermal barrier coating comprises alternating layers of yttria-stabilized zirconia and a molten silicate resistant material. The molten silicate resistant outer layer may be formed from at least one oxide of a material selected from the group consisting of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, indium, zirconium, hafnium, and titanium or may be formed from a gadolinia-stabilized zirconia. If desired, a metallic bond coat may be present between the substrate and the thermal barrier coating system. A method for forming the thermal barrier coating system of the present invention is described.
摘要:
The rotatable joinder of two sheets is provided by a two-piece interfitting bearing assembly with each element separately attached to one of the sheets so that the sheets are joined but rotation is controlled by the interfitting bearing surfaces. The interfitting parts comprise an inner and outer race which are placed together in superposition with aligned apertures in the sheets. The rotatable attachment of the sheets is accomplished in a single pressing operation in which each race is simultaneously pressed into one of the sheets with a gap remaining between them.
摘要:
An article having an improved thermal barrier coating is disclosed. The article includes a superalloy substrate, and an adherent alumina layer generated on the substrate surface. The article also includes a layer of ceramic material forming a columnar grain, thermal barrier coating on the alumina layer. The coating is composed of a generally homogeneous mixture of two materials, such as yttria and ceria and preferably at least about 5 w/o yttria, balance, ceria. The article may also include an intermediate ceramic bond coat, such as a layer of yttria strengthened zirconia, to enhance the adherence of the thermal barrier coating.
摘要:
A system is provided for transferring a voice component and a data component of a service call. The system includes a first call distribution circuit which receives a service call comprising a voice component. A first voice instrument and a first contact control server are coupled to the first call distribution circuit. The first voice instrument receives the voice component. The first contact control server generates a data component related to the voice component. A first workstation, coupled to the first contact control server, receives the data component. A second call distribution circuit receives the voice component in an ISDN-supported transfer call via a first communication path from the first call distribution circuit. The ISDN-supported transfer call specifies an identifier associated with the first voice instrument. The second call distribution circuit determines the identifier from the ISDN-supported transfer call. A second voice instrument and a second contact control server are coupled to the second call distribution circuit. The second voice instrument receives the voice component. The second contact control server receives the data component via a second communication path from the first contact control server. The second contact control server associates the data component and the voice component using the identifier. A second workstation, coupled to the second contact control server, receives the data component.