10results about How to "Improve composite effect" patented technology

This invention relates to the field of nanomaterials, specifically to a metal-organic framework composite material, its preparation method, applications, and a method for oxidative removal of organic sulfur from fuel oil. The composite material comprises Ce-MOF nanomaterials and MnO2 nanomaterials, wherein the weight ratio of MnO2 nanomaterials to Ce-MOF nanomaterials is 1:(13-15). In the X-ray photoelectron spectrum of the composite material, a characteristic peak exists at 530 eV for the O 1s spectrum. The composite material of this invention exhibits good synergistic effects between MnO2 nanomaterials and Ce-MOF nanomaterials, demonstrating excellent catalytic activity and stability.

The utility model relates to the technical field of fabric compositing, in particular to a composite structure for enhancing fabric compositing strength, which comprises a first unwinding component and a second unwinding component. A first fabric unwound by the first unwinding assembly and a second fabric unwound by the second unwinding assembly sequentially enter the compounding assembly and the drying oven and then are wound by the winding assembly, and the spraying assembly is arranged on the upper side of the first fabric between the first unwinding assembly and the compounding assembly. A first box body is arranged on the lower side of the first fabric between the spraying assembly and the compounding assembly, a first negative pressure opening is formed in the upper end face of the first box body, a second box body is arranged on the upper side of the second fabric between the compounding assembly and the drying oven, a second negative pressure opening is formed in the lower end face of the second box body, and extraction openings are formed in the first box body and the second box body; according to the air suction device, the permeation of an adhesive to the fabric can be effectively enhanced, and the composite strength of the fabric is enhanced.

The present application relates to tungsten hard alloy technical field, especially to a kind of rare earth modified tungsten hard alloy and its preparation method and application.The rare earth modified tungsten hard alloy provided by the present application mainly uses cerium oxide, yttrium oxide and titanium oxide rare earth as modified component, through the preparation of special structure to modified component, so that modified component can synergistically give full play to function, improve the overall modification effect, so that the rare earth modified tungsten hard alloy provided by the present application has high hardness and high toughness.And, by controlling the specific composition and particle size of the composite rare earth particles and the rare earth modified iron powder and other parameters, the synergistic effect between the rare earths can be further improved, and the toughness can be improved under the premise of high hardness.The composite rare earth particles and the rare earth modified iron powder in the present application also have good complex effect, which helps the effective dispersion and particle size control of the overall component, thereby ensuring the balance of hardness and toughness of the rare earth modified tungsten hard alloy.

This application relates to the field of metal strip composite technology, specifically disclosing a multilayer metal strip composite device. The device includes an unwinding roller for releasing a single-layer strip to be composited; a take-up roller for taking up the composite strip after composited operation, with a composite path defined between the take-up roller and the unwinding roller; a coating roller assembly located downstream of the unwinding roller for applying adhesive to the surface of the single-layer strip; an axial flow fan located downstream of the coating roller for drying the coated single-layer strip; a composite positioning roller located downstream of the fan for aligning the multiple layers of dried single-layer strips; and a composite pressing assembly located between the composite positioning roller and the take-up roller for flattening and hot-pressing the stacked single-layer strips. The coating roller, fan, composite positioning roller, and composite pressing assembly are sequentially arranged on the composite path. This device produces a flatter composite strip with higher interlayer bonding strength and allows for the composite of a higher number of metal strip layers.

The utility model relates to composite machine technical field discloses an environmental protection type pearl wool glueless compound machine, including the composite machine main part, the composite machine main part outer wall is provided with the winding roller, the composite machine main part outer wall is provided with the guide component, the composite machine main part outer wall fixedly connected with the fixed frame, the fixed frame top fixedly connected with the compression roller no.

This invention discloses a steel-shell composite girder structure and its optimized design method for filling ultra-high performance concrete (UHPC) within a steel shell. It relates to the field of steel-concrete composite structure technology. The key technical points are: the invention welds and fixes the lower steel plate of the bridge deck's steel shell to the upper chord and upper crossbeam of the truss, creating a continuous connection between the upper chord and the lower steel plate, forming an integrally closed frame structure with the side plates of the steel shell. During UHPC pouring, the continuity between the upper chord and the lower steel plate avoids the problem of phased pouring. This frame structure also serves as a permanent formwork for the UHPC pouring and a part of the structural load-bearing capacity, thereby enhancing the integrity between the bridge deck and the truss. By arranging perforated I-beams, shear bolts, and transverse reinforcement details between the bridge deck's steel shell, a good combination of UHPC and steel shell is achieved, forming an integrated steel-shell-UHPC composite bridge deck system, improving the bridge deck's stiffness and load-bearing capacity.

The utility model relates to the technical field of compounding devices, in particular to a compounding device for multilayer wires, which comprises a support, a plurality of rotating cylinders are rotatably connected to two side surfaces of the support, a plurality of servo motors are fixedly connected to one side surface of the support, four first electric heating rollers are arranged among the plurality of rotating cylinders, and a plurality of second electric heating rollers are arranged among the four first electric heating rollers. A plurality of annular guide grooves are formed in each first electric heating roller; four heating assemblies are arranged on the support, each heating assembly comprises an upper electric heating roller and a lower electric heating roller which are rotationally installed on the support, and a fixing rod is arranged on the support. According to the utility model, a plurality of groups of four-layer wires can be conveniently compounded at the same time, the compounding efficiency is higher, the wires are uniformly and fully heated, so that the wires can be better fused together, the compounding effect is better, the firmness degree of the compounded wires is higher, and the compounding treatment of the multi-layer wires is facilitated.

This utility model relates to the field of EPE foam production and discloses a composite thickening machine for convenient glue application. It includes a thickening machine body, with mounting frames fixedly connected to the left sides of both the top and bottom ends of the machine body. A support plate is fixedly connected to the front end of the mounting frames, and an unwinding motor is mounted at the front end of the support plate. An unwinding shaft is mounted at the output end of the unwinding motor. A glue-applying trough is mounted on the left side inside the thickening machine body. A lower glue-applying roller is movably mounted inside the glue-applying trough, and an upper glue-applying roller is positioned above the lower glue-applying roller. A bonding roller is mounted on the right side of the upper glue-applying roller. This convenient glue-applying composite thickening machine utilizes the rotation of the lower and upper glue-applying rollers inside the glue-applying trough. The lower glue-applying roller transports the glue from the glue-applying trough to the upper glue-applying roller, which then applies glue to the EPE foam. This facilitates the adhesive bonding of the EPE foam after glue application. The bonding roller on the side of the upper glue-applying roller improves the uniformity of glue application, thus solving the problem of easy glue application.

This invention provides a carbazole compound and its organic electroluminescent device, specifically relating to the field of organic optoelectronic materials technology. When used as the host material of the emitting layer in an organic light-emitting device, the compound of this invention can improve the mobility of charged holes in the host material, enhancing the exciton recombination effect; simultaneously, it achieves efficient energy transfer from the host material to the doped material, and limits energy loss caused by energy backflow or exciton diffusion, thus improving the device's light-emitting performance. The compound of this invention exhibits good film-forming properties and thermal stability. When used as a capping layer, it can improve optical efficiency and reduce light loss reflected by nearby electrodes during emission, thereby improving device performance. The preparation method of the compound of this invention is simple, the raw materials are readily available, and it can be widely applied in fields such as organic thin-film transistors and panel displays, showing good application effects and industrialization prospects.