9results about How to "Uniform structure distribution" patented technology

The present invention provides a biodegradable high-adhesive antibacterial resin for aluminum-plastic composite and a preparation method thereof, wherein PBAT, TPS, maleic anhydride grafts, Fe-TCPP, antioxidant 1010 and other materials are melt-blended to prepare a plastic film substrate; the obtained plastic substrate is then thermally bonded to a metal aluminum substrate to obtain an aluminum / plastic composite plate having a biodegradable high-adhesive antibacterial resin. The maleic anhydride grafts adjust the compatibility between the flexible structure PBAT and the strongly polar rigid structure plasticized starch to form a local molecular chain penetration, and the matrix has excellent interface polarity and toughness, and can produce great stress loss when bonded to a strongly polar aluminum plate to greatly improve the bonding performance. On this basis, the introduction of the photodynamic antibacterial agent Fe-TCPP can produce more strong interactions with the matrix to ensure its dispersion effect and excellent antibacterial performance without side effects.

The invention relates to the technical field of steel structure connection, and provides a steel structure connecting structure for an electric iron tower, which comprises a base, reinforcing plates are uniformly fixed on the outer walls of the two sides of the bottom of the base, an anchoring structure is fixed at the bottom end of the base, the anchoring structure comprises a bottom plate fixed at the bottom end of the base, and an anchor point seat is fixed at the bottom end of the bottom plate. Anchor point blocks are evenly fixed to the edge position of the bottom end of the bottom plate. The anchoring structure is arranged, the anchor point block and the anchor point seat are poured in the foundation of the mounting point through concrete, the stability of the whole connecting assembly in daily use can be improved, the structure distribution is uniform, the stress can be effectively dispersed, the structure looseness or deviation caused by wind power, vibration or load change is prevented, and the service life of the connecting assembly is prolonged. The steel structure connecting structure for the electric power iron tower has the function of facilitating stable connection, and the stability of the steel structure connecting structure for the electric power iron tower during use is improved.

The application provides a high-entropy light-weight hard alloy cement high-pressure roller mill stud and a preparation method thereof and a high-pressure roller mill, and relates to the field of studs. The high-entropy light-weight hard alloy cement high-pressure roller mill stud comprises raw materials including an alloy and C powder, and the alloy, with a total mass of 100%, comprises 56-60% TiCN, 20-24% TiC and 20-24% Fe-Ni-Co-Cr-Mo-Cu alloy; the C powder accounts for 0.2-0.5% of the mass of the alloy. The high-entropy light-weight hard alloy cement high-pressure roller mill stud has a uniform distribution of metallographic microstructure, high density, few internal pores, better ductility and toughness, no collapse phenomenon in the use of multiple batches of cement mines, good wear resistance, and a service life that can be increased by 40-50%.

The invention provides a high-activity special alloy with good surface quality and a preparation method thereof, and belongs to the technical field of special alloy preparation. According to the method, the metal foil is matched with the high-activity metal to protect the high-activity special alloy, and the metal foil is selected for outer layer protection and used for sealing protection of the high-activity special alloy and combination of the metal foil and residual oxygen in a vacuum furnace; the inner layer material adopts high-activity metal which is high in melting point and can adsorb oxygen in the vacuum furnace, so that the reaction between the high-activity special alloy and oxygen at high temperature can be reduced, and the reaction between the high-activity special alloy and the inner layer material at high temperature can also be prevented, thereby solving the problem of surface oxidation of the high-activity special alloy; and meanwhile, good surface quality of the high-activity special alloy is ensured. The result of the embodiment shows that the high-activity special alloy prepared by the preparation method provided by the invention is low in oxygen content and uniform in distribution at different parts, and meanwhile, the distribution of an organization structure is uniform.

The invention provides pseudo-boehmite as well as a preparation method and application thereof.According to the pseudo-boehmite, on the basis of a neutralization method, magnesium salt is introduced into a wet filter cake of the pseudo-boehmite, key parameters such as pH in all steps are controlled, the pseudo-boehmite containing a magnesium aluminate spinel structure is finally prepared, the final product is stable in quality, and the yield is high. And the catalyst has high hydrothermal stability.

The present application relates to a water-cooled semiconductor temperature control system, which includes: a control end, including a thermoelectric semiconductor, a water pipe component and a water pump, the water pipe component is connected to the thermoelectric semiconductor, and the water pump is arranged on the water pipe component; a working end, including a temperature control product and a flexible energy exchange pipe network, the flexible energy exchange pipe network is in contact with and fits with the temperature control product, the flexible energy exchange pipe network is connected to the water pipe component of the control end, the flexible energy exchange pipe network and the water pipe component constitute a water circulation loop, and a liquid is arranged in the water circulation loop; wherein the flexible energy exchange pipe network includes: an outer water pipe, in an annular structure; an inner water pipe, in a mesh array structure, connected to the inner ring of the annular structure of the outer water pipe, and connected to the outer water pipe; a water inlet, located on the outer water pipe or the inner water pipe, and connected to the water pipe component of the control end; a water outlet, located on the outer water pipe or the inner water pipe, and connected to the water pipe component of the control end. Its advantages are: providing more uniform and comfortable temperature control.

The utility model discloses a modularization Y type anti -suction belt liquid baffle structure and full -liquid evaporator. The baffle structure includes two -stage Y type baffle array, baffle fender and convex type clamping groove, two -stage baffle misplacement arrangement, interval 3 4mm, vertical interval 0.25mm, are fixed through fender Y type groove, and the modularization installation is realized to bottom convex type clamping groove and evaporator inner wall groove clamping groove cooperation. Its two -stage separation mechanism can high -efficiently intercept the liquid refrigerant in gas -liquid mixture, and separation efficiency is greater than or equal to 95%, and flow resistance is less than or equal to 50Pa. Full -liquid evaporator sets this baffle structure below compressor suction port, is fixed through clamping groove, significantly reduces the risk of liquid knock, and installation and maintenance are convenient, adapts to different pipe diameter evaporator, and is applicable to the safe and efficient operation scene of refrigeration system.

This invention relates to the preparation and electrocatalytic application of molybdenum-nickel telluride based on NiO self-sacrificial template in the field of hydrogen evolution electrocatalysis. The purpose of this invention is to solve the problems of high cost of noble metal hydrogen evolution catalysts, slow kinetics of alkaline hydrogen evolution reactions, insufficient active sites in single-phase telluride, and limited electron transport and interfacial synergistic effects in existing technologies. This patent designs and develops a molybdenum-nickel telluride composite material MoTe2 / NiTe2 based on NiO self-sacrificial template. The method used: using the polyacid precursor SiMo... 12 Using NaTeO3 as raw material, NiO as a self-sacrificing template and nickel foam conductive substrate, a molybdenum-nickel telluride composite catalyst was prepared by hydrothermal synthesis. This catalyst is suitable for electrocatalytic hydrogen evolution reaction in alkaline electrolyte and has high catalytic activity, good conductivity, abundant heterostructures and excellent long-term stability.

This utility model discloses a basket structure for maritime rescue, relating to the field of maritime rescue technology. The utility model includes a first connecting block and a second connecting block disposed above the first connecting block. A first connecting rope is fixedly connected to the top of the second connecting block. It also includes: an extension portion disposed above the first connecting rope; a retractable portion disposed on the first connecting block; and several retractable portions, all located outside the first connecting block. Each retractable portion includes several support assemblies. This utility model, by incorporating the retractable portion, solves the problem of existing basket structures being inconvenient to retract during use. This results in a large surface area of ​​the basket's bottom in contact with the water when lowered into the water, causing the buoyancy of the water to act instantly over a large area, leading to violent shaking of the basket and hindering rescue efforts.