5results about How to "Reduce separation" patented technology

The utility model discloses a semi-flexible composite pavement structure, and relates to the technical field of road engineering, the semi-flexible composite pavement structure comprises a rigid base layer, a transition layer, a flexible surface layer and a pavement coating, and embedded parts are arranged in the rigid base layer, the transition layer and the flexible surface layer; three layers of materials are stacked and combined, embedded parts are arranged inside, a stable mechanical meshing structure which is narrow in top and wide in bottom can be formed, reflection cracks and interlayer stripping can be effectively restrained, a pavement coating sealing layer is finally coated, the service life of a pavement is remarkably prolonged, the driving comfort is remarkably improved, meanwhile, the maintenance cost is reduced, and the service life of the pavement is prolonged. The long-acting stable pavement performance combining rigidity and softness is realized.

This invention belongs to the field of investment casting technology, specifically a manufacturing equipment for precision casting of mold shells using silica sol process. It includes a mold shell processing component and a mold shell coating component. The coating component includes a support base with an elastic bladder connected to it. A coating layer is applied to the outer surface of the elastic bladder. An air inlet pipe and an air outlet pipe, communicating with the elastic bladder, are connected to the support base. The air inlet end of the air inlet pipe is connected to an external air pump. Control valves are respectively installed on the air inlet and outlet pipes. This invention can form a reinforcing agent coating film on the inner wall of the already processed mold shell, further improving the forming quality of the inner wall, increasing the strength and permeability of the mold shell, making the casting easier to remove from the shell. Furthermore, the mold shell coating component can automatically complete the coating work on the inner wall of the mold shell, saving time and labor. Simultaneously, this mold shell coating component can process mold shells of different shapes and models, improving the applicability of the equipment.

The application relates to the technical field of chemical fiber manufacturing, and discloses an oiling device with a flow guiding and backflow structure for a POY production line, which comprises a main body, a plurality of placing columns rotatably connected to the side wall of the main body, and a self-supplying mechanism installed on the side wall of the main body, wherein the plurality of placing columns are symmetrically distributed around the main body; and the self-supplying mechanism improves the use efficiency of oil agents. When the oiling columns rotate due to the centrifugal force, the oil agents on the oiling columns may be thrown out, thereby causing waste of the oil agents; the cover cylinder can block and collect the thrown-out oil agents; when the external oil supply device stops working or the oil agents are insufficient, the cover cylinder can still perform oiling operation on the fiber bundle surface due to the storage of the oil agents in the cover cylinder, thereby further improving the continuity of the oiling device during operation.

This application discloses a manufacturing process for a transport container of highly radioactive materials, relating to the field of radioactive material transport container manufacturing technology. The process includes the following steps: S1: Fabricating inner and outer shells and a shielding plug shell; S2: Tinning and lead-plating the outer surface of the inner shell and the inner surface of the outer shell, and tinning the inner surface of the shielding plug; S3: Testing the adhesion rate of the lead-plated layers of the inner and outer shells; S4: Welding the inner and outer shells into a cylindrical body; S5: Pouring lead into the cylindrical body and the shielding plug shell; S6: Removing the lead-filled riser; S7: Sealing and welding the bottom plates of the cylindrical body and the shielding plug; S8: Final machining; S9: Conducting acceptance tests on the transport container. This application uses a cylindrical body and a shielding plug to form the transport container. Tinning and lead-plating the cylindrical body before pouring lead ensures better adhesion between the lead layer and the cylindrical body after the lead liquid solidifies, reducing the likelihood of separation.

This invention discloses an artificial badminton shuttlecock, comprising a head, multiple feather shafts, multiple feather pieces, a first connector, a second connector, and an annular groove. The head includes a top surface, a convex surface, and multiple insertion holes, with the top surface having an outer edge. Multiple insertion holes are located on the top surface. The multiple feather shafts include a front end, a feather piece section, and a middle section, wherein the front ends of each feather shaft are spaced apart and inserted into corresponding insertion holes on the top surface. Adhesive is disposed within the multiple insertion holes to secure the feather shafts to each hole. Multiple feather pieces are respectively connected to the feather piece sections of the multiple feather shafts. Both the first and second connectors connect the middle sections of each feather shaft in an annular strip shape. The first connector is located below the second connector and closer to the top surface. The annular groove is located on the top surface, with a distance W1 between the annular groove and the outer edge, wherein the distance W1 is greater than 0.8 mm and less than 4 mm.