7results about How to "Easy material selection" patented technology

The application discloses a fuse tinning device and method, wherein the fuse tinning device comprises a fuse melting substrate placing rack for placing a fuse melting substrate; a tin strip placing rack for placing a tin strip; the tin strip placing rack is arranged above the fuse melting substrate placing rack; a flux pool for storing flux; a flux roller is further arranged above the flux pool, and the flux roller applies flux to one side of the tin strip which faces the fuse melting substrate when the tin strip passes through the surface of the flux roller; a pressing roller is further arranged behind the flux pool, and the pressing roller presses the tin strip coated with flux and the fuse melting substrate; a reflow oven is further arranged behind the pressing roller, and the reflow oven fuses the tin strip and the fuse melting substrate by adjusting temperature; and a winding device is further arranged behind the reflow oven, and the winding device winds the tin strip and the fuse melting substrate after fusion.

This invention discloses a method for detecting the adhesive color of Mini-LED beads, comprising the following steps: S1: Under fixed ambient light conditions, acquiring a first image of the Mini-LED bead to be tested after surface magnification before reflow treatment, and a second image of the Mini-LED bead to be tested after surface magnification after reflow treatment; S2: Restoring the Mini-LED bead to be tested from the first and second images; S3: Performing color analysis on the restored first and second images to obtain the first chromaticity value of the Mini-LED bead before reflow treatment and the second chromaticity value after reflow treatment; S4: Calculating the difference between the first and second chromaticity values ​​to determine whether the surface adhesive color of the Mini-LED bead is qualified based on the difference. This method for detecting the adhesive color of Mini-LED beads can automatically identify the surface adhesive color at the Mini-LED bead level and screen Mini-LED beads from the source, thereby improving the display effect of subsequent displays.

The utility model provides a kind of direct drive torque motor, the direct drive torque motor includes motor casing, is arranged in the motor casing one end and is fixed with the motor casing base, with the base fixed end cover, the motor casing is provided with cooling flow channel, the axial of the end cover is provided with flow channel entrance and / or flow channel exit, the axial of the end cover, the base is provided with through entering flow channel and discharge flow channel, the flow channel entrance, the entering flow channel, the cooling flow channel, the discharge flow channel and the flow channel exit are connected to form communication passage.The direct drive torque motor of the utility model, by setting flow channel entrance and / or flow channel exit on end cover, thereby as far as possible reduce the radial space occupation of load end and direct drive torque motor, and have more direct more efficient heat dissipation path.

This invention discloses an automated equipment for low-temperature pulverization of Panax notoginseng powder, relating to the field of pulverization processing technology. The automated equipment includes a front-end component for crushing Panax notoginseng powder and a rear-end component for screening the finished product. The front-end component includes a coarse crusher for coarse crushing of the Panax notoginseng powder and a pulverizing host for pulverizing the Panax notoginseng powder. The pulverizing host includes a base, and an air inlet assembly is mounted above the base. The air inlet assembly includes a first chamber fixedly connected to the base, with a first chamber pipe fixedly connected to one side of the first chamber. A pulverizing chamber assembly is mounted above the air inlet assembly, including a second chamber fixedly connected to the first chamber, with a second chamber pipe fixedly connected to one side of the second chamber. A pulverizing component is located in the lower part of the pulverizing chamber assembly. This automated equipment for low-temperature pulverization of Panax notoginseng powder has high grading efficiency, effectively avoids over-pulverization of materials, and saves energy.

The invention belongs to a simulation device, and particularly relates to a double-end crevasse simulation device for a pipeline. The double-end crevasse simulation device for the pipeline comprises a forged four-way joint arranged in the center, the front end and the rear end of the forged four-way joint are each provided with a sealing assembly, and each sealing assembly is connected with the forged four-way joint through a pressing crevasse assembly. The invention has the remarkable effects of simple structural design, convenience in material selection, easiness in processing and manufacturing and low manufacturing cost; the crevasse simulation piece is adjacent to the inner wall surface of the main pipeline, so that a crevasse simulation experiment is closer to reality, data measured by the crevasse experiment are more accurate, and the crevasse simulation piece has more practical significance; tests of various crevasse sizes can be realized by replacing crevasse simulators of different sizes, and the crevasse simulator is convenient to operate, free of complex structures and high in universality; the crevasse simulation piece is easy to process; the sealing element is easy to purchase and replace; the device can be used for research of pipeline crevasse tests in nuclear power, chemical industry, petrochemical industry and other industries, and crevasse tests of various media can be achieved by replacing materials.

This utility model relates to an ultra-large diameter interchangeable roughing and finishing boring integrated device that can realize roughing and finishing of ultra-large diameter inner holes of different specifications. It includes a roughing and finishing boring body, a tool body connecting shank, a keyway box, a finishing boring tool box, a finishing boring cover, a roughing boring tool head, and a wooden guide key. These seven parts are assembled using screws, T-bolts, washers, and nuts. The wooden guide key is installed in the keyway box 1, and the roughing boring tool head's square groove is fitted with... Insert the rough boring tool, adjust the dimensions, and tighten the rough boring tool with screws. After adjusting the dimensions, install the finish boring tool into the tool slot of the finish boring tool box. Connect this device to the tool holder. The spindle rotates, and the tool holder drives the integrated rough and finish boring device to make linear motion, realizing one-time clamping and machining of the inner hole rough and finish boring. The keyway box, finish boring cover, and finish boring tool box can be replaced according to the hole diameter, so as to perform rough and finish boring of inner holes with different diameters.

The application discloses a kind of low profile multi-mode waveguide absorption load, belong to microwave technical field.The load includes metal shell, medium water storage cavity and absorption array;Metal shell is the cylindrical metal structure of bottom closed, cladding load back side to prevent electromagnetic wave back end leakage;Medium water storage cavity is coaxially nested in shell, inside filling cooling liquid and being equipped with water inlet and outlet;Absorption array uses periodic arrangement absorption unit, outer surface is regular quadrangular prism structure, inner surface is multistage ladder regular quadrangular prism structure, bottom and medium water storage cavity are communicated.The application is realized in compact structure by two-stage impedance conversion and multilayer electromagnetic loss synergistic superposition, and has wide frequency band, high absorption rate, mode insensitive characteristics to fundamental mode and various high-order mode, while overall presents low profile, small volume, lightweight advantage, easy to scale production.