5results about How to "Reduce air" patented technology

The application discloses a modular quick-change module of an OMR vacuum laminating machine and a laminating device, relates to the field of vacuum laminating machines, and comprises a rack, a linear module is mounted on the inner side of the rack, an installation plate is fixedly connected to the top of the linear module, a workpiece is placed on the inner side of the installation plate, a hydraulic cylinder is mounted on the inner side of the rack, and a top seat is fixedly connected to the output end of the hydraulic cylinder; the cooperation of the rectangular plate and other parts enables the second nozzle to start from the sealed end, gradually advance to the middle area and the area close to the other end, and apply uniform pressure; this process not only continuously discharges air to the end, but also assists the close lamination of the film and the workpiece surface through uniform air flow pressure, ensures that the back glue of each area can fully contact the workpiece, reduces the air bubble hidden danger caused by local lamination from the root, and realizes the dead-angle-free air exhaust from one end of the workpiece to the other end, and further reduces the overall air bubble generation rate.

This utility model relates to dishwashers, specifically providing a water cup assembly and a dishwasher, aiming to solve the problem of insufficient water intake in existing dishwasher water pump inlet structures, which leads to air or foam easily entering the water pump, causing cavitation and affecting the stability and reliability of the system operation. To this end, the water cup assembly of this utility model includes: a water cup with a downwardly recessed first groove; an insert disposed within the first groove to restrict the water flow path within the first groove; the insert has a notch, allowing water in the first groove to flow along the notch. The notch in this utility model increases the water intake in the first groove, helping to form a stable water seal layer in the water tank, effectively preventing air from entering the washing pump and preventing cavitation, thereby improving the operational stability and reliability of the washing system. Simultaneously, the notch structure of the insert reduces material usage while meeting functional requirements.

This invention provides a method for preparing a quartz crucible with low bubble expansion rate, belonging to the field of quartz crucible production technology. The method includes: S1, pouring quartz sand into a mold and using centrifugal molding to form a crucible bubble layer and a transparent layer, wherein the crucible bubble layer uses coarse-grained quartz sand, and the crucible transparent layer uses fine-grained quartz sand; S2, inserting the formed quartz sand along with the mold into a melting chamber and starting a vacuum pump to evacuate to a predetermined pressure; S3, igniting an arc in the mold, and during the formation of the crucible transparent layer, performing a first stage of high-temperature melting on the quartz sand using a first preset power; S4, in the later stage of melting, performing a second stage of high-temperature melting on the quartz sand using a second preset power, and after the second stage of high-temperature melting, removing the mold to obtain a quartz crucible with low bubble expansion rate. This invention, through the combination of quartz sand particle size matching and melting power adjustment, ultimately prepares a quartz crucible with low bubbles and low bubble expansion rate.

This utility model discloses a novel extrusion and discharge device for denitrification catalysts, relating to the technical field of denitrification catalyst production equipment. Specifically, it is a novel extrusion and discharge device for denitrification catalysts, comprising a bottom feeding box and a top storage box. A spiral sleeve is installed on one side of the bottom feeding box, and an extrusion die is installed at one end of the spiral sleeve. A double-spiral screw is installed inside the spiral sleeve and the bottom feeding box. Through the coordinated arrangement of the double-spiral screw and the vibrating table, this novel extrusion and discharge device for denitrification catalysts significantly reduces the presence of air bubbles inside the catalyst preform or pits on its surface. Furthermore, the coordinated arrangement of the bottom feeding box, the top storage box, and the double-spiral screw significantly improves the stability of the extrusion pressure of the catalyst preform, thereby increasing the yield.

The application discloses a kind of fiber directional arrangement forming mould device for toughened concrete, belong to concrete preparation equipment field, including mould, the top of the mould is slidably connected with sealing plate, the surface of the sealing plate is fixedly connected with exhaust pipe, one side of the sealing plate is equipped with positioning mechanism, one side of the mould is fixedly connected with hopper, the surface of the mould is equipped with guide mechanism, the guide mechanism includes motor, by the surface of mould is equipped with two electromagnets, again by the magnetic pole of two electromagnets opposite forms magnetic field, so that forced fiber is aligned along the direction, again by the output end of motor rotation drives rotating rod to rotate, again by rotating rod rotation drives knock block to rotate, again by knock block rotation knocks mould and makes mould vibrate, again by mould vibration drives concrete vibration to reduce air in concrete, avoid the problem that traditional toughened concrete mould cannot adjust the direction of steel fiber, improve practicality.