8results about How to "Moderate thickness" patented technology

The utility model discloses a kind of automatic post-treatment equipment of bolt hot galvanizing, belong to metal surface treatment technical field, it includes the mechanical arm for grabbing work, centrifuge and truss manipulator for throwing away excess zinc liquid, the mechanical arm and centrifuge are all located truss manipulator side, the mechanical arm is located centrifuge rear, cooling pool, passivation pool and blanking conveyor are respectively installed below the truss manipulator, and the passivation pool is located cooling pool and blanking conveyor adjacent side, wherein, it further includes zinc plating basket for containing workpiece, the zinc plating basket outer diameter is less than centrifuge inner diameter, in the utility model, adopt mechanical arm, truss manipulator and blanking conveyor and other automation equipment, the seamless docking of bolt hot galvanizing post-treatment process equipment is realized, to effectively improve the automation degree of device whole, to greatly reduce manual operation, greatly avoid the situation of low production efficiency and low capacity caused by manual operation.

The utility model relates to the technical field of endoscopes, and discloses an endoscope insertion tube and an endoscope, and the endoscope insertion tube comprises a metal elastic layer, a metal braid layer and a self-repairing layer. The self-repairing layer comprises a self-repairing resin layer and a self-repairing coating layer; the self-repairing resin layer is arranged outside the metal braid layer, the self-repairing coating layer is arranged outside the self-repairing resin layer, and the material of the self-repairing coating layer comprises a coating with self-repairing capability. The outer surface of the endoscope insertion tube with the structure is the self-repairing layer, when the outer surface of the insertion tube is scratched or damaged due to improper use of an operator, the self-repairing layer can automatically repair the outer surface of the insertion tube under the conditions of heating, illumination or radiation and the like, the outer surface of the insertion tube is convenient to repair, the repairing cost is low, and the service life of the insertion tube is prolonged. The service life of the insertion pipe can be effectively prolonged; when the outer surface of the insertion tube is damaged, the insertion tube does not need to be replaced, so that the repair and maintenance cost of medical equipment can be reduced.

This invention discloses a secondary design method for the mix proportion of hybrid steel fiber self-compacting concrete based on a customized solid-phase surface filling layer. Starting with a basic mix proportion of fiberless self-compacting concrete, steel fibers are introduced, and a secondary mix proportion design is performed using a secondary design envelope curve to obtain the final mix proportion of the steel fiber self-compacting concrete. This design method can encompass material variations such as different fiber diameters and aggregate systems, and can achieve the mixed incorporation of fibers. This reduces fluctuations in the workability of the mixture caused by material and fiber content, significantly improves stability, optimizes the workability control of fresh self-compacting concrete, greatly reduces the number of mix proportion adjustments, and enables rapid mixing of self-compacting fiber concrete. It provides guidance for the application of fiber concrete and the targeted customization of mix proportions in practical engineering.

The invention relates to the field of sodium-ion batteries, and discloses an electrolyte composition, a sodium-ion battery electrolyte and a sodium-ion battery. In order to solve the problems of poor high-temperature cycle performance and storage performance of a sodium ion battery in the prior art, the invention provides the electrolyte composition, the composition comprises an additive composed of cyclic carbonate, anhydride and a sulfonic acid compound, so that both an SEI membrane and a CEI membrane in the prepared sodium ion battery have better stability, and the service life of the sodium ion battery is prolonged. Therefore, the material has excellent high-temperature cycle performance and storage performance.

The invention discloses a composite modified resin anticorrosive coating and a preparation method thereof, and belongs to the technical field of coatings. The method comprises the following steps: by taking water-borne epoxy resin as a film forming substrate, firstly preparing graphene oxide, carrying out amination on 2, 5-diaminobenzene sulfonic acid to introduce amino and sulfonic acid groups which are covalently bonded, and then carrying out defect engineering reduction through hydrazine hydrate to obtain defect engineering amino modified graphene oxide with high-density reaction sites; lamellar double hydroxides grow on the surface in situ, molybdate radicals are intercalated to construct a core-shell structure filler, and finally the filler is dispersed in a waterborne epoxy / aliphatic polyamide curing system to prepare the composite anticorrosive coating. According to the invention, the adhesive force and impact resistance of the coating and a metal matrix are remarkably improved, the water absorption rate is reduced, the shielding and slow-release corrosion inhibition capabilities on a corrosive medium are enhanced, and the long-term corrosion resistance superior to that of a conventional waterborne epoxy anticorrosive coating is shown in neutral salt mist and low-frequency impedance tests.

This invention relates to a copper electrode, comprising a copper electrode layer and a protective layer, wherein the protective layer at least covers the top and side surfaces of the copper electrode layer; the ratio of the thickness of the copper electrode layer to the thickness of the protective layer is 1:0.8~1.5, and the protective layer is made of a resin composition. This invention also discloses a method for manufacturing the copper electrode. This invention further discloses an electronic component. By using a protective layer to cover the copper electrode layer, this invention avoids the problem of continuous oxidation of the copper electrode in air, creating conditions for the long-term use of the copper electrode product.

This invention discloses a method for preparing a decellularized matrix with a bioactive coating, belonging to the medical aesthetics industry. The key technical points of the method are the following steps: S1, preparation of the decellularized matrix; S2, treatment of the decellularized matrix; S3, rehydrating the decellularized matrix and then sequentially immersing it in an activation solution, a collagen solution, and another activation solution, followed by washing and freeze-drying to obtain a collagen matrix; S4, adding anti-inflammatory microcapsules and growth factor nanocarriers to a hyaluronic acid solution to obtain a mixed solution; S5, immersing the collagen matrix in the activation solution, reacting and rinsing, coating the mixed solution onto the surface of the collagen matrix, then curing, rinsing, and drying to obtain a decellularized matrix with a bioactive coating. This application improves biocompatibility and safety by constructing a covalently linked hyaluronic acid-collagen bilayer structure on the surface of the decellularized matrix, while also solving the problems of unstable structure and poor mechanical strength of traditional decellularized matrices.

This invention relates to an antioxidant solder material and a welding process for surface-mount LEDs, belonging to the field of LED welding technology. It achieves homogenization of composition through a combination of step-by-step melting and microstructure control. First, a tin-copper-bismuth master alloy is prepared by pre-melting in a pit furnace, pre-dispersing the bismuth element. Then, vacuum induction melting combined with electromagnetic stirring, along with an intermediate alloy feeding method, promotes the uniform dispersion of high-melting-point / active elements such as nickel and rare earth elements. Ni and rare earth elements can play a role in grain refinement and grain boundary purification, effectively suppressing the gravitational segregation and coarsening of the bismuth phase, avoiding the formation of brittle enrichment zones in the solder joints. The resulting solder joints have uniform grains, a moderate thickness of the intermetallic compound layer, and a smooth morphology, significantly improving the shear strength and thermal fatigue resistance of the solder joints and reducing the risk of brittle fracture failure of micro-solder joints.