31results about How to "Avoid material damage" patented technology

A wind turbine main bearing realized to bear a shaft of a wind turbine, which shaft is caused to rotate by a number of blades connected to the shaft is disclosed. The wind turbine main bearing includes a fluid bearing with a plurality of bearing pads arranged about the shaft. Also disclosed is a wind turbine with a number of blades connected to a shaft and realized to rotate the shaft, which wind turbine includes as main bearing a wind turbine main bearing. Further described is a method of performing maintenance on a wind turbine, including the steps of halting a rotation of the shaft, operating a lifting arrangement to raise the shaft, and removing a bearing pad of the wind turbine main bearing from the bearing housing of the wind turbine main bearing.

An apparatus that harnesses the thermal energy of spent fuel rods in nuclear power plants to power the cooling system of the nuclear power plant particularly the cooling for the spent fuel rod storage ponds and the main reactors. The apparatus is comprised of a heat exchanger unit that accumulates the thermal energy of the spent fuel rods, a heat conveyance system that conveys the thermal energy of the spent fuel rods, and a heat engine that receives its thermal energy input from the spent fuel rods and produces mechanical power that runs an electrical generator which powers the cooling system of the nuclear power plant, particularly the controls and pumps that cool the spent fuel rod storage ponds and the main reactors. The apparatus provides a redundant power source and makes the cooling system of nuclear power plants independent of externally supplied electrical power and thereby resolves a key redundancy and safety concern with nuclear power generation. The apparatus also has application to other industries.

A valve for controlling a fluid, in particular for controlling a gas, is described, encompassing a valve housing an actuation unit for an at least locally tubular valve armature which is guided axially displaceably and is equipped with a valve closure member by which a fluid flow between an inflow side and an outlet side is controllable and which coacts with a valve seat. The valve armature comprises a guidance collar in a region remote from the valve closure member, and is equipped with a second guidance in a region offset with respect to the guidance collar.

An embodiment of the invention provides a chip package, which includes a substrate having an upper surface and a lower surface, a chip disposed in or on the substrate, a pad disposed in or on the substrate and electrically connected to the chip, a hole extending from the lower surface toward the upper surface, exposing the pad, wherein a lower opening of the hole near the lower surface has a width that is shorter than that of an upper opening of the hole near the upper surface, an insulating layer located overlying a sidewall of the hole, and a conducting layer located overlying the insulating layer and electrically connected to the pad.

An extrusion conveying apparatus, including an extruder that operates as a mixing device and is laterally supplied with components that are to be mixed, in particular components of a rubber mixture or thermoplastic elastomer. A volumetrically operating conveyor, in particular a gear pump, is connected to the output side of the extruder. A rotational speed or feed rate of the extruder is adjustable independently of the feed rate and volume flow of the conveyor. n−1 volumetric subsidiary conveyors are provided for passage of components therethrough where there are n components of a mixture. In particular component n is supplied in an undosed manner. A rotational speed or feed rate of the subsidiary conveyors is adjustable independently of the feed rate of the volumetrically operating conveyor.

The invention relates to a sintering furnace for components consisting of sintering material, especially dental components and in particular components consisting of ceramic, and a method for sintering such components. The sintering furnace 1 comprises a heatable furnace chamber 2 for the component 9 to be sintered, the furnace chamber 2 having a wall section 6 to be opened for inserting the component 9 to be sintered into the furnace chamber 2. Drive means 10 are provided for mechanized opening and closing of the wall section 6, and a control 11 is provided for the drive means 10 that has an actuation element 12 for the drive means 10. Furthermore, a heating device 5 for the furnace chamber 2 is provided, and the control 11 causes the furnace chamber 2 to be heated. Actuating the control element 12 triggers the loading sequence of the control 11, and the drive means 10 are automatically actuated by the control 11 corresponding to the loading sequence. An additional subject is a method for operating the sintering furnace, as well as a computer program therefor.

A method of constructing a small trackwidth magnetorsesistive sensor by defining a trench between first and second hard bias layers and depositing the sensor into the trench.

A joint section where covering films 2a, 2b of film-covered battery 1 are heat-sealed together is formed with flat surface 6′ having thickness t₁ and groove 6 having thickness t₂. Groove 6 serves to reduce the projection area of film-covered battery 1 by folding side 2c toward receiving section 2a1 with groove 6 serving as an edge, and groove 6 is made thinner than flat surface 6′ by Δ t=t₁−t₂. Therefore, the length of covering films 2a, 2b produced on outer side 6a is shortened as compared with the case of folding the portion that has thickness t₁.

The invention discloses a PCB and a manufacturing method thereof, and relates to PCB manufacturing technologies. The manufacturing method of the PCB comprises that substrates and prepregs are provided, slots are formed in positions, into which metal blocks are embedded, of at least part of the substrates and the prepregs; all the substrates and prepregs are stacked and fixed sequentially, and grooves are formed in the positions into which metal blocks are embedded; a conducting resin sheet and a metal block are disposed above the groove; the metal block and the conducting resin sheet are stamped into the groove; and all the substrates and prepregs are laminated. A conductive and heat conducting material and the metal block can be placed in at the same time, it is not required to mill the conductive and heat conducting material into small units in advance, problems of offset, material damage and pollution due to taking the small units of the conductive and heat conducting material manually can be prevented, the production efficiency can be improved obviously, and the problem of low aligning degree can be solved.

A safety-extension base connected to a main base and a control method thereof are disclosed, the base includes a communication unit, a system state monitoring unit, a module control unit, a memory unit, a state conversion unit and a safety-processing unit. The communication unit performs data communication with the main base. The system state monitoring unit monitors a state of the PLC system. The module control unit controls a general operation of the safety-extension base and outputs different cases of control signals. The memory unit stores the data transmitted from the main base and a program and information. The state conversion unit converts the state of the safety-extension base into the normal state or safety state. The safety-processing unit performs a control of the safety-extension base.

A hydrostatic machine with a cylinder block (6), within which sleeve holes (28b) are arranged, in which sleeves (28) sit, surrounding piston bores (28a) in which pistons (29) are mounted, such as to be displaced back and forth and the pistons (29) extend into the cylinder block (5) such as to define cylinders (26) with the front ends thereof. According to the invention, the risk of piston seizure can be reduced, whereby the sleeves (28) comprise an axially-defined recess (41) in the outer surface thereof, in the region facing away from the cylinder and the region with the greatest piston radial force, pressing the pistons (29) against the wall of the piston bore.

An automotive interior trim for improving deployment safety of seamless passenger airbags for instrument panel is disclosed. The interior trim, mounted on an deployment opening of an airbag module of a framework for a instrument panel, includes a framework with an airbag deployment opening for a instrument panel, an airbag cover covering the airbag deployment opening, a foaming interlayer, a surface layer, and a netlike additional layer which is integrally combined with the foaming interlayer after penetrated by a foam material. When the airbag bursts, the airbag cover is opened outwards and the surface layer of the instrument panel is torn, and the foaming interlayer is torn thereupon too. Under the effect of the netlike additional layer, the foam in the foaming interlayer is fixed by the additional layer, thereby avoiding crumb and hard particle production and improving the deployment safety of the airbag greatly.

The present invention thus provides a fabric-laminated plastic part and a novel process where the fabric that provides the surface is pre-laminated with a support layer and supplied into a molding process where a plastic substrate component is molded. The fabric surface piece is precisely located and securely bonded by selection of a support layer plastic material having sufficient heat resistance and/or thickness to sufficiently resist melt softening and stretching during the molding process. This process and fabric laminated plastic article are especially suited for preparing thin-wall, articles that need to have precisely located, smooth fabric surface areas corresponding to discontinuities, voids or openings in the underlying molded plastic article.

The invention relates to a method for in situ non-destructive stripping of quantum dots. The method comprises the following steps: heating a substrate having quantum dots on the surface thereof to thecritical desorption temperature of quantum dots, wherein the quantum dots are III-V group quantum dots, the material of the substrate is a III-V compound, and the bond energy of the quantum dots is lower than the bond energy of the compound in the substrate; then applying pulse laser to the quantum dots, so that the atoms in the quantum dots are excited and detached in situ from the surface of the substrate. The method provided by the invention can effectively avoid the problems of oxidation, pollution, material destruction, time consuming and diseconomy existing in current mainstream stripping methods.

The invention discloses a dustproof type wood cutting device. The dustproof type wood cutting device structurally comprises a cutting blade protection cover, a working chamber, a rotary valve, a cooling device, a supporting board, an engine, a transmission belt, a working platform and a cutting blade; the cutting blade is fixed to the upper portion of the interior of the working chamber through ascrew; and the cooling device is provided with a movable adjusting device, a fixed linkage device, a stress drive device, a screw starting device, an air blower device, a water pump device, a stress mist spraying device and a metal frame. The dustproof type wood cutting device has the beneficial effects that by additionally arranging the cooling device, air flows out rapidly from a small hole according to the Bernoulli principle, the pressure intensity near the small hole is small, the pressure intensity of air on the liquid face in a container is large, liquid rises along a thin pipe below the small hole, flows out from an upper opening of the thin pipe and is sprayed to be in a mist shape under impact of air flow to cool a cutter wheel, the cutter wheel is effectively cooled, material damage caused by too high temperature is avoided, and the service life of a cutting machine is prolonged.

The invention relates to a purification treatment method for tail gas of a diesel engine. The method comprises the steps of: providing an exhaust gas treatment catalyst, wherein the catalyst comprisesa zinc oxide honeycomb ceramic carrier and a catalyst body loaded on the carrier, the zinc oxide honeycomb ceramic carrier is a wave-absorbing heating zinc oxide honeycomb ceramic material and can capture and adsorb particles in diesel engine tail gas, and the particles adsorbed to the surface of ceramic are further combusted and decomposed under the microwave heating effect. Meanwhile, sulfur dioxide in tail gas of the diesel engine can be absorbed, so that the desulfurization purpose is achieved. In addition, the material is loaded with a lanthanum-cerium-nickel composite metal oxide catalyst, and has a good denitration effect on tail gas of a diesel engine in a microwave field. According to the purification treatment method based on the carrier and the catalyst, the reaction efficiencyof the catalyst can be effectively improved, catalyst poisoning is avoided, the service life of the catalyst is prolonged, and the purification treatment method has wide application prospects in thefield of diesel engine tail gas purification.

The invention discloses a cable copper nose punching equipment with automatic feeding and blanking. The equipment comprises a bottom machine box, a feeding device is installed on the right side of theupper surface of the bottom machine box, a clamping device is installed below the perpendicular line of the feeding device on the right side of an inner cavity of the bottom machine box, a single-column hydraulic cylinder is installed on the left side of the upper surface of the bottom machine box, a telescopic rod is arranged in the bottom center line of a punch, and a stabilizing device is arranged in the middle of the right side surface of a die base. The feeding device and a feeding bin are arranged on the right side surface of the bottom machine box. Through the arrangement of the feeding bin, copper noses can be conveniently stored into the feeding device; and then through the arrangement of a conveying disc and a control motor, the copper noses falling onto the conveying disc can conveniently fall into the bottom machine box in a rotating mode, material damage caused by misoperation during manual feeding is avoided, and therefore an automatic structure can be easily formed, andthe production efficiency is improved.

The invention provides a cutting machine for a celluloid plate. The cutting machine comprises a device shell, wherein a first electric sliding rail is transversely arranged at the top of the inner wall of the device shell, a first moving seat is arranged on the lower surface of a sliding part driven by the first electric sliding rail, a second electric sliding rail is transversely arranged on the lower surface of the first moving seat, and a hydraulic oil cylinder is arranged on the lower surface of a driving sliding part of the second electric sliding rail. According to the cutting machine for the celluloid plate, by arranging a worm gear on the surface of a rotating rod, when the rotating rod drives the worm gear to rotate, the worm gear is engaged with the first worm, and the first worm drives a moving plate to move through threads so as to fix materials, so that the problems that potential safety hazards are easily caused by manual fixing, and the cutting precision is affected due to shaking of the materials during cutting are solved.

The invention relates to a flow cell stack liquid guide plate structure, which is characterized in that strip-shaped limiting blocks perpendicular to the surface of a flat plate are respectively arranged at the edges of four sides of the surface of one side of one liquid guide plate of a flow cell stack along the side length direction, and the other liquid guide plate is provided with corresponding strip-shaped limiting blocks and/or strip-shaped limiting blocks staggered with the strip-shaped limiting blocks on the liquid guide plate. And a corresponding through hole is formed in the corresponding limiting block and penetrates through the positioning block and the liquid guide plate. In the process of assembling and pressing the galvanic pile, the limiting block can well limit the transverse displacement of the electrode frame, so that the pulling force on the material caused by the extrusion offset of the electrode frame is prevented, the sealing and positioning requirements are better met, and the reliability and the assembly success rate of the galvanic pile are improved. In addition, the limiting block limits the pressing thickness of the galvanic pile, and material damage caused by overpressure is avoided.