10results about How to "Ensure long-term stability" patented technology

The utility model discloses a kind of wind pressure resistance reinforcing structure of broken bridge aluminum door and window, belong to aluminum door and window reinforcing technical field, the inside of first frame body is equipped with protruding frame, the corner of protruding frame is equipped with first limit strip, first limit groove for clamping is formed between multiple first limit strips, the middle section of protruding frame is equipped with abutting arc part, and inner groove is formed in the inside of abutting arc part;The inside of second frame body is equipped with inner boss, and the corner of inner boss is equipped with second limit strip. By first, second limit groove clamping cooperation, and the reinforcing rib structure of oblique support strip, insertion strip and abutting strip composition, improve broken bridge aluminum door and window wind pressure resistance performance, make it keep stable under severe weather. First, second frame body and its related components integrated design, reinforcing structural stability, reduce security risk. Abutting arc part and opening cover and other components design, stable structure, ensure that door and window long-term stable durable, prolong service life.

The application discloses a polymer electrolyte for a lithium metal battery and a preparation method and application thereof, and relates to the technical field of battery electrolyte materials. + The desolvation energy barrier at the electrode interface is reduced, the ionic conductivity of the electrolyte is significantly enhanced, and the lithium ion can be guided to form a stable solid electrolyte interface film in cooperation with the lithium ion, so that the uniform lithium ion flow is achieved, the uncontrollable growth of lithium dendrites is significantly inhibited, the side reaction consumption of the electrolyte in the cycle process is greatly reduced, and the long-period stability of the battery is effectively ensured, and the application is suitable for large-scale popularization and application in lithium metal batteries.

The invention provides an anti-optical crosstalk structure of a double-layer light guide plate and a preparation method of the anti-optical crosstalk structure. The structure comprises an upper-layer light guide plate and a lower-layer light guide plate which are oppositely arranged in parallel, and an air layer is formed between the two light guide plates; the SiO2 plating layer is arranged on the lower surface of the upper-layer light guide plate and / or the upper surface of the lower-layer light guide plate; the side edge light blocking structure is arranged on the light incident side edge of the upper-layer light guide plate and / or the lower-layer light guide plate. Interface transmission optical crosstalk caused by Fresnel reflection is inhibited through the SiO2 plating layer, small-angle light at the edge of a light source is intercepted through the side light blocking structure, and optical crosstalk is inhibited from two dimensions through the synergistic effect of the SiO2 plating layer and the side light blocking structure; meanwhile, square OCA glue is adopted to be attached to non-display areas on the peripheries of the two layers of light guide plates, transparent supporting microbeads are evenly distributed on the edges of the inner sides of the non-display areas, and it is guaranteed that the thickness of an air layer is even and stable. The vehicle-mounted optical crosstalk preventing device is compact in structure and good in optical crosstalk preventing effect, the lighting optical crosstalk rate of the upper layer can be reduced to 3.2%, the lighting optical crosstalk rate of the lower layer can be reduced to 1.8%, and the use requirement of the vehicle-mounted harsh environment is met.

This utility model discloses a heat treatment and shaping device for polyester fiber yarn, including a drying box. A fixed frame is fixedly installed inside the drying box, and a placement plate is provided above the fixed frame. The placement plate is slidably connected to the fixed frame via a slider. A first sliding rod is fixedly installed inside the fixed frame, and the slider is slidably sleeved with the first sliding rod. A first cam is rotatably installed on the fixed frame. An installation frame is fixedly installed inside the drying box, and a movable frame is slidably installed on the installation frame. A carding frame is rotatably installed on the movable frame. Through the synergistic action of the placement plate, slider, first sliding rod, first cam, and first spring, the placement plate and the fiber yarn it carries are driven to generate controllable reciprocating vibration or oscillation inside the drying box. This dynamic treatment method effectively breaks the static structure of multi-layer stacked fiber yarn and significantly promotes the penetration and circulation of the heat medium inside the fiber layer and between different layers.

The invention belongs to the technical field of power plant indirect cooling circulating water treatment, and relates to an automatic control device and method for the quality of indirect cooling circulating water. Comprising an intelligent control cabinet, an alkali solution tank, an acid solution tank, a mixed ion exchanger, a condenser and an indirect cooling tower aluminum heat exchanger, a conductivity meter, a pH meter and a PLC (Programmable Logic Controller) are arranged in the intelligent control cabinet; the alkali solution tank is connected with a circulating water inlet pipeline; the acid solution tank is connected with a circulating water inlet pipeline; a pH electrode is arranged on the circulating water inlet pipeline; a conductivity electrode is arranged on the circulating water outlet pipeline; the condenser inlet is connected with the circulating water outlet pipeline; the condenser outlet is connected with the circulating water inlet pipeline; the circulating water outlet pipeline is connected with an inlet of the mixed ion exchanger; an outlet of the mixed ion exchanger is connected with an inlet of the condenser. According to the invention, accurate control of the water quality pH value and conductivity of the intercooling circulating water can be realized, so that system corrosion is effectively inhibited, the service life of equipment is prolonged, and safe and economical operation of a unit is guaranteed.

This invention belongs to the technical field of silicon-based piezoresistive high-pressure sensors, and specifically relates to a dual-island beam membrane high-pressure sensor chip and its fabrication method. The chip features a dual-island beam on a sensitive membrane; a set of piezoresistive strips are arranged on the upper surface of the dual-island beams, positioned along two center lines of the chip body; the dual-island beams include an island and an island, with their ends connected to the device layer, insulating layer, and support layer via a beam body; the upper surfaces of the islands are flush with the upper surface of the beam body; this significantly enhances the lateral and longitudinal stress difference in the stress concentration area, making the stress concentration effect more pronounced, improving the sensor's sensitivity, and ensuring reliable measurement results under various operating conditions.

This invention discloses a large-arc bend injection mold and molding method, belonging to the field of injection molding technology. The mold includes a moving mold, a fixed mold, and a core mold with a circular arc core; it also includes a demolding drive mechanism for driving the core mold and product to generate a first displacement away from the fixed mold; and a pointer-type rotary demolding mechanism, which includes a pointer push rod and a push ring rotating around the axis of the circular arc core. During demolding, after the product is lifted with the core mold, the pointer push rod drives the push ring to swing along the circular arc path to push the product out. This invention also reduces the covering force by performing pre-demolding through an assisted demolding mechanism and ensures the stability of the core mold during injection molding using a core positioning mechanism. This invention replaces the traditional hot bending process with one-time injection molding, solving the problems of low production efficiency, poor roundness, and easy cracking caused by thermal stress in existing technologies for large-arc bend pipes, significantly improving the geometric accuracy and operational reliability of the product, and is particularly suitable for ultra-high voltage converter valve cooling system pipelines.

The utility model provides a household electrical appliance wire harness with a heat dissipation sleeve, and relates to the technical field of household electrical appliance wire harnesses, the household electrical appliance wire harness comprises a wire harness head, one side of the wire harness head is provided with three connecting ports, one side of each connecting port is fixedly connected with a connecting sleeve, and one side of each connecting sleeve is provided with a heat dissipation mechanism; according to the cable heat dissipation sleeve, the heat dissipation sleeve body and the first threaded sleeve freely adjust the position of a cable, butt joint connection is facilitated, then the second threaded sleeve is screwed down, the surface of the cable is clamped and fixed by the locking sleeve, stable connection is ensured, then the first threaded sleeve further pulls the sleeve rope and the fixing frame, and the elastic piece is pushed to be tightly attached to the cable, so that the cable is fixed. The stable connection between the cable and the heat dissipation sleeve body is enhanced, the heat dissipation effect is improved, the overall structural design is compact, installation is convenient, the risk of loosening or insufficient heat dissipation is effectively avoided, and the long-term stability and reliability of a system are ensured.

The application is suitable for the technical field of underground engineering anti-floating, and provides a subway station active and passive anti-floating structure and a construction method thereof, wherein the subway station active and passive anti-floating structure comprises: a multi-field sensing network comprising a plurality of sensors arranged in an underground water collection and drainage structure layer, a station structure and a surrounding stratum, and used for collecting water level, settlement and rainfall parameters in real time; a hierarchical decision hub electrically connected with the multi-field sensing network and an intelligent mechanical execution unit respectively, and used for calculating an optimal pressure limiting water level based on a dynamic pressure limiting model, and controlling the intelligent mechanical execution unit to perform corresponding actions. The subway station active and passive anti-floating structure provided by the application forms an intelligent and self-adapting anti-floating system through the cooperative work of the underground water collection and drainage structure layer, the intelligent mechanical execution unit, the multi-field sensing network and the hierarchical decision hub.

This invention belongs to the field of semiconductor manufacturing and abrasive grinding wheel technology, specifically relating to a CMP polishing pad dresser with gradient wear compensation characteristics and its fabrication process. The dresser of this invention includes a substrate and a composite cutting layer distributed on its surface. The composite cutting layer consists of large-particle-size diamond abrasive distributed in a first region of a sector shape and small-particle-size diamond abrasive distributed in a second region. The exposed height of the large-particle-size diamond abrasive is greater than that of the small-particle-size diamond abrasive, and both are embedded and fixed by a multi-layer metal structure including multiple nickel plating layers and an outermost chromium-plated anti-corrosion layer. This invention utilizes the mechanism of diamond abrasive of different particle sizes being exposed in stages according to the wear progress during the dressing process to offset the performance degradation caused by cutting edge dulling, solving the problems of short lifespan and linear decline in dressing rate of traditional dressers. Experiments have shown that this structure can significantly extend the lifespan of the dresser and maintain the stability of the dressing rate over a long period, which is of great significance for improving the consistency of wafer planarization processes.