660results about How to "Long operating time" patented technology

An abradable coating composition for use on shrouds in gas turbine engines or other hot gas path metal components exposed to high temperatures containing an initial porous coating phase created by adding an amount of inorganic microspheres, preferably alumina-ceramic microballoons, to a base metal alloy containing high Al, Cr or Ti such as β-NiAl or, alternatively, MCrAlY that serves to increase the brittle nature of the metal matrix, thereby increasing the abradability and oxidation resistance of the coating at elevated temperatures. Coatings having a total open and closed porosity of between 20% and 55% by volume due to the presence of ceramic microballoons ranging in size from about 10 microns to about 200 microns have been found to exhibit excellent abradability for applications involving turbine shroud coatings. An abradable coating thickness in the range of between 40 and 60 ml provides improved performance for turbine shrouds exposed to gas temperatures between 1380° F. and 1800° F. Abradable coatings in accordance with the invention can be used for new metal components or to repair existing equipment. The coatings can be applied to the metal shroud using thermal spray, processes that integrate sintering and brazing, or direct write techniques.

The present invention relates generally to acquisition of data from RFID devices (132-136), such as sensor data. Prior art systems of active RFID devices have a problem of high average power consumption, and therefore, the energy source of the RFID devices needs to be replaced or charged frequently. The present invention provides a new solution wherein the RFID device has a power saving mode in which the receiver of the RFID device has a decreased ability to receive/detect RF signals. The RFID device may include a timer which is functional during the power saving mode, and the receiver of the RFID device will turn into active mode at a point of time based on the time value of the timer. Signal strength of an RF channel is indicated with a receiver, and transmission of data is dependent on the indication of the signal strength.

The invention relates to cement-based shrinkage-free wall hole-penetrating blocking materials and a preparation method and a construction method. The materials comprise, by weight, 100 cement, 0-100 active admixture, 0.01-10 water reducing agent, 0.01-10 early strength agent, 0.1-30 expanding agent, 0-20 adhesion agent, 0-10 water repellent, 0.01-30 plastic retaining agent, 0.01-10 starch ether, 0-60 power filler and 0-300 aggregate. Compared with the prior art, the cement-based shrinkage-free wall hole-penetrating blocking materials have the advantages of being good in construction performance, and long in operational time. New mixing slurry has good plasticity, adhesive power and anti-falling performance, a caulking gun or a caulking machine can be used for pressing, injecting or sealing holes, a flowing phenomenon cannot appear even big holes are filled, and the big holes can be filled until the big holes are full and until reaching the deep hole, and completely sealed, and the sealing materials can fully come into play.

The invention relates to a heat source or a heat sink unit with thermal ground coupling, comprising at least one ground probe arranged in the earth, whereby each earth probe is a probe tube made from several pile tube segments. An open dip tube or a U-shaped tube loop is arranged in the probe tube at the open lower end thereof. Said unit is characterized in that each pile tub segment is made from ductile cast iron, the pile tube segments re embodied such as to plug into each other at the ends thereof and each pile tube segment comprises, at the one end thereof, a conical outer circumference and, at the other end thereof, a sleeve embodied with a shoulder stop having a matching conical internal circumference, whereby the diameter thereof and the cone angle are such that on driving in the pile tube segments a positive and sealed connection between the pile tube segments is generated.

This invention relates to a method, system and computer program product that monitors usage for man carried weapon systems; specifically a device to monitor ammunition level and weapon discharges through real time data collection, analysis and real time visual feedback to the operator. An ammunition level detecting system mounted on a projectile weapon comprising: A level measurement unit (LMU) and a Reader and Visualization Unit (RVU) and a PC Dongle which configured to facilitate communication between the RVU and a personal computer (PC), enabling management of the RVU configuration and offloading of sensor obtained and system determined data values.

A liquid metal evaporation source for use in Molecular Beam Epitaxy and related metal vacuum deposition techniques. An evaporator is maintained at a high temperature to evaporate a liquid metal, a reservoir for holding the liquid metal source is maintained at a temperature above the melting point of the metal but below the temperature in the evaporator, and a hollow transport tube connecting the evaporator and reservoir is maintained at a temperature between these temperatures. The reservoir is in the shape of a hollow cylinder with a close-fitting cylindrical piston which is used to force the liquid metal through the hollow transport tube into the evaporator. The liquid metal will not flow past the piston seal if a suitably small gap is formed between the piston and the reservoir walls wherein the surface tension of the liquid metal will exceed its hydrostatic pressure against the piston thus forming a leak-tight seal.

A main body for attaching an electronic component, for example, a transponder, on a rubber article, such as a tire, a conveyor belt, or the like. The mount has a connecting layer made, in one embodiment, of uncured, curable rubber material which is covered by an adhering protection film prior to use. A main body made of cured or uncured rubber material is permanently connected with this connecting layer and has a recess for accommodating the electronic component. A cover preferably made of the main body material, serves for fixing the electronic component in the recess in the main body.

It is possible to prevent degradation of power consumption efficiency or lowering of a communication rate in a radio communication. Each node 50 determines a transmission power for data communication so that the number of searched nodes reaches a target value and stores the node address of the searched node by the transmission power in an adjacent node address storage unit 25. Moreover, the transmission power for control communication is determined in the same way. When the node 50 transmits a data frame to another node, an ERTS frame including the node address stored in the adjacent node address storage unit 25 is transmitted by the transmission power for the control communication. After an ECTS frame is received, the data frame is transmitted by the transmission power for the data communication. A control information input/output unit 24 identifies the node in an NAV period from the received ERTS frame or the like and stores the node address of the node in an NAV setting node address storage unit 26.

The invention relates to silicone gel and specifically provides a high adhesiveness silicone gel for embedding a precision electron component. The silicone gel comprises a component A and a component B that have similar viscosity and are in transparent fluid shape. The component A mainly comprises vinyl silicone oil and catalyst; the component B mainly comprises vinyl silicone oil, cross-linking agent and inhibitor; an accessory employs a diluent or an adhesion agent or a mixture of the two; the accessory is arranged in the component A or the component B or both of the two; and the component A and the component B are independently packaged and mixed in a ratio of 1:0.8-1.2 for usage. The invention has advantages of good fluidity, property of automatic deaeration and simple operation. The component A and the component B are independently packaged, and the two components will not gelatinize after mixing, so as to gain a long operating time; the mixture can solidify rapidly once heated, and the solidification time can be controlled freely by temperature and inhibitor amount; and the silicone gel is in semi-solidification state after solidification, has good adhesiveness and sealing performance on many base materials and has excellent hot-cold alternate resistance.

Chemical etching methods and associated modules for performing the removal of metal from the edge bevel region of a semiconductor wafer are described. The methods and systems provide the thin layer of pre-rinsing liquid before applying etchant at the edge bevel region of the wafer. The etchant is less diluted and diffuses faster through a thinned layer of rinsing liquid. An edge bevel removal embodiment involving that is particularly effective at reducing process time, narrowing the metal taper and allowing for subsequent chemical mechanical polishing, is disclosed.

The invention discloses a dual-purpose adhesive for adhering tiles and filling seams. The dual-purpose adhesive comprises, by weight percent, 20%-40% of cement, 50%-70% of filler, 2%-5% of redispersible latex powder, 0.05%-0.2% of cellulose ether, 0.4%-1.5% of early strength agent, 0.2%-0.8% of thixotropic lubricant, 0.3%-1.5% of wood fiber, 0.1%-0.4% of water repellent 0.1%-0.6% anti-whiskering agent, 0.1%-1% of mildew preventive and 0.1%-0.6% of dispersant. The dual-purpose adhesive belongs to the field of construction adhering materials, is efficient, energy-saving, low-carbon and environment-friendly, can be used for adhering tiles and processing tile seams, and working hour repetition and material waste are avoided.

The invention discloses a phosphogypsum based plastering gypsum, and relates to a plastering material for a building wall. The phosphogypsum based plastering gypsum mainly comprises 75 to 95 percent of phosphogypsum based building gypsum, 1 to 3 percent of sierozem powder, 0.1 to 0.5 percent of retarder, 1.1 to 5.5 percent of composite water retention agent, 0.3 to 1 percent of ethylene-vinyl acetate copolymerized latex powder, and 0 to 20 percent of stuffing. The phosphogypsum based plastering gypsum effectively improves water retention property and lowers cost by adopting the combination of cellulose ether water retention agent and bentonite, effectively adjusts settling time and prolongs operable time by adopting the retarder, improves construction property, cohesive property and cracking resistance by doping the stuffing and the latex powder, and reduces adverse effects of impurities on the strength of plastering gypsum by adding the sierozem powder. The phosphogypsum based plastering gypsum has the advantages of good workability and construction property, long operable time, high breaking resistance, compression resistance and adhesion strength, good volume stability, good cracking resistance and lower cost, and can be used for a plastering layer of the building wall.

The invention discloses a method for analyzing a residual quantity of a solvent in a compound by GC (Gas Chromatograph). The method comprises the step of carrying out separation by adopting the following chromatographic conditions: a detector is a hydrogen flame ionization detector, the temperature of the detector is 200 DEG C to 300 DEG C and is preferably 300 DEG C, and the temperature of an injection opening is 180 DEG C to 250 DEG C and is preferably 220 DEG C; a chromatographic column is a medium-polarity capillary gas chromatography column and adopts a programmed temperature process of keeping the temperature of 40 to 60 DEG C for 3 to 10min, then heating to the temperature of 100 to 140 DEG C at a speed of 5 to 15 DEG C/min, keeping the temperature of 100 to 140 DEG C for 1 to 10min, heating to the temperature of 200 to 230 DEG C at a speed of 15 to 25 DEG C/min and keeping the temperature of 200 to 230 DEG C for 1 to 20min; carrier gas is nitrogen, hydrogen or argon and is preferably nitrogen, and the flow rate of the carrier gas is 1ml/min to 10ml/min and is preferably 3ml/min; the solvent is selected from one or more of C1 to C6 carboxylic acid, methanol, ethanol, acetonitrile, ethyl acetate, tetrahydrofuran, methylbenzene and N,N-dimethylformamide; the C1 to C6 carboxylic acid is preferably C1 to C4 carboxylic acid and is more preferably acetic acid. When the method is adopted to detect the residual quantity of the solvent, the operation is simplified, time is saved and cost is saved.

The invention discloses special N-phthalate reinforced soft polyethylene plastics for a circulation loop, which comprises the following ingredients by weight parts: 100 weight parts of PVC resin powder, 20 to 50 weight parts of N-phthalate plasticizers, 5 to 35 weight parts of auxiliary stabilizing agents, 0.5 to 5.0 weight parts of stabilizing agents, 0.1 to 2.0 weight parts of lubricating agents and 0.1 to 1.0 weight part of antioxidants. The invention also discloses a preparation method of the special N-phthalate reinforced soft polyethylene plastics for the circulation loop. The method comprises the following steps: carrying out high-speed mixing on ingredients; using a double-screw extruding machine for plastification; and using a single screw for cooling and forming to obtain rubber grains. The recipe of the invention is suitable for the manufacture of the circulation loop, particularly the varieties with high processing precision and long operation time and the varieties needing ray sterilization.

Methods for the sustained, high-volume production of Group III-V compound semiconductor material suitable for fabrication of optic and electronic components, for use as substrates for epitaxial deposition, or for wafers. The equipment and methods are optimized for producing Group III-N (nitrogen) compound semiconductor wafers and specifically for producing GaN wafers. The method includes reacting an amount of a gaseous Group III precursor as one reactant with an amount of a gaseous Group V component as another reactant in a reaction chamber to form the semiconductor material; removing exhaust gases including unreacted Group III precursor, unreacted Group V component and reaction byproducts; and heating the exhaust gases to a temperature sufficient to reduce condensation thereof and enhance manufacture of the semiconductor material. Advantageously, the exhaust gases are heated to sufficiently avoid condensation to facilitate sustained high volume manufacture of the semiconductor material.