7results about How to "Break through the size limit" patented technology

The invention belongs to the technical field of nuclear fuel preparation, aims to solve the problems of non-uniform particle distribution and high breakage rate in traditional coated particle fuel preparation, and discloses a coated particle dispersion fuel pellet and a preparation method thereof.The method comprises the steps that firstly, silicon carbide slurry is prepared, a silicon carbide base band is prepared through tape casting equipment, and then the silicon carbide base band is prepared; after tape casting, the base band enters a drying area to be partially dried, TRISO particles are arranged on the surface of the base band at set intervals, the silicon carbide base band is freely curled and formed from one end, degreasing treatment and sintering densification are conducted, and the core block is prepared through the method. Through high-precision tape casting and three-dimensional curling technologies, uniform distribution of TRISO particles in CDF is achieved, and the contact and breakage rate of fuel in the preparation process is reduced.

This utility model discloses a foaming device, belonging to the field of microbubble cleaning technology, specifically relating to a micro / nanobubble generating device, comprising: a cavity with a fluid inlet and a mixed fluid outlet, the fluid inlet being used to receive a gas-liquid mixed fluid with a certain pressure; and a multi-stage vortex module disposed within the cavity; the multi-stage vortex module includes a flow channel composed of several blade units, used to cause the passing gas-liquid mixed fluid to undergo at least two rotational directional changes in opposite directions, thereby breaking the gas into microbubbles under the repeated impact and shearing action of the liquid. The blades in this utility model are assembled, and different numbers of blades can be selected depending on the length of the pipe; the blade shape is fluid-mechanically designed to facilitate the rotation of the liquid flow, achieving efficient and stable microbubble generation while significantly improving cost control, maintainability, and adaptability.

The utility model relates to a cyclic lifting device for multi-specification flasks for experiments, which comprises a base, two supporting columns are symmetrically arranged on the base, and the base and the supporting columns jointly form a main frame; chain wheels are symmetrically arranged on the tops and the lower portions of the two supporting columns correspondingly, the two chain wheels located on the upper portion are flush with each other, the two chain wheels located on the lower portion are flush with each other, a chain is connected between the two chain wheels on the same side, and the two chains are symmetrical; a transmission shaft assembly is connected between the two chain wheels located on the lower portion, the transmission shaft assembly is in transmission connection with a driving assembly, and the driving assembly is in communication connection with a control module. A plurality of sliding shaft assemblies are arranged between the two chains, and one or more hook assemblies are connected to the sliding shaft assemblies in a sliding mode.

The embodiment of the invention provides a preparation method of a carbon-based semiconductor thin film material, which comprises the following steps: firstly, bonding a semiconductor subjected to ion implantation and a silicon-based substrate with a dielectric layer to obtain a silicon-based semiconductor material, preparing a through hole for releasing the dielectric layer on the silicon-based substrate, providing a through hole from a supporting substrate for releasing the dielectric layer, and finally preparing a carbon-based semiconductor thin film material. The problem that in the prior art, dielectric layer release needs to provide a channel by patterning a semiconductor film is solved, the size limitation of transfer printing of the semiconductor film is broken through, and then preparation of a large-area semiconductor heterogeneous integrated material is achieved. Besides, the heterogeneous material prepared by the transfer printing Van der Waals integration method almost has no amorphous transition area at the interface, has no limitation on the types of composition materials, and is not influenced by physical factors such as lattice mismatch, thermal mismatch and the like.

The utility model provides a self-adjusting wind turbine generator set pitch bearing crack monitoring device, which comprises an outer bearing, an inner bearing, bearing holes and an external control device, the inner bearing rotates in the outer bearing, the bearing holes are arranged in the inner bearing and the bearing holes in an annular array, and the wind turbine generator set pitch bearing crack monitoring device is used for monitoring the pitch bearing crack of the wind turbine generator set. The position of the detector can be dynamically adjusted according to the diameter and the distance of the bearing hole through sliding fit of the driving plate and the telescopic plate of the adjusting mechanism, when the size of the bearing hole changes, the external control device can drive the driving plate to slide in the first fixing plate, and meanwhile the telescopic plate stretches out and draws back synchronously, so that the detector is accurately aligned with the bearing holes with different hole diameters. Besides, the size of the detection window is matched with the distance between the bearing holes, a second fixing plate can be elastically extruded through a buffer pad in cooperation with an adjusting structure of a threaded rod and a bolt, it is ensured that the upper surfaces and the lower surfaces of the bearings of different sizes are stably clamped, and the problem that a traditional device cannot be matched with the bearing holes of multiple sizes due to a fixing structure is solved.

This application discloses a hybrid interposer and a method for forming the same. The method includes: providing a glass interposer, the glass interposer including a plurality of discrete functional regions and a cut-out region located between adjacent functional regions, the glass interposer including opposing first and second surfaces; forming a first bonding layer on the first surface of the glass interposer; providing a plurality of silicon interposers, each silicon interposer including opposing third and fourth surfaces, the third surface having a second bonding layer; bonding at least one silicon interposer to each functional region of the glass interposer, such that the second bonding layer and the first bonding layer are mixed-bonded; and forming a molding compound covering the silicon interposers on the first surface of the glass interposer, the molding compound exposing the fourth surface of the silicon interposers. This method improves the size and interconnect density of the interposer and reduces the warpage of the interposer.

The utility model discloses an overlapping type double-cover-plate shell structure which is characterized in that the overlapping type double-cover-plate shell structure comprises a shell, an inner cover plate and an outer cover plate, the inner cover plate is fixedly connected with the shell through screws, the outer cover plate covers the inner cover plate and is fixedly connected with the shell through screws, a cavity is formed between the inner cover plate and the shell, and the inner cover plate is fixedly connected with the shell through screws. And mounting holes for fixing are formed in the edge of the shell. According to the utility model, the structure of the inner cover plate is optimized, so that the upper edge is tightened by means of the screw holes of the outer cover plate, thereby solving the problem of electromagnetic shielding of a compact module.