6results about How to "Low manufacturing process cost" patented technology

This invention relates to a layer-by-layer composite electrochromic thin film of Mo-WO3 and Bi-WO3 and its preparation method. The method includes: dissolving tungstic acid in hydrogen peroxide solution to obtain a peroxytungstic acid solution; adding a Bi-containing substance to the peroxytungstic acid solution and heating until the Bi-containing substance is completely dissolved to obtain a bismuth-doped peroxytungstic acid sol; adding a Mo-containing substance to the peroxytungstic acid solution and heating until the Mo-containing substance is completely dissolved to obtain a molybdenum-doped peroxytungstic acid sol; spin-coating the bismuth-doped peroxytungstic acid sol onto a conductive glass substrate and calcining to obtain a bismuth-doped WO3 thin film; and spin-coating the molybdenum-doped peroxytungstic acid sol onto the bismuth-doped WO3 thin film and calcining to obtain a Mo-WO3 / Bi-WO3 thin film. This invention employs a layer-by-layer composite structure design. The Bi-WO3 bottom layer significantly enhances the film-substrate adhesion and improves cycle stability; the Mo-WO3 surface layer ensures high optical modulation rate, fast response, and memory effect, achieving a synergistic performance improvement.

The application provides a high-efficiency preparation process of short-fiber hard thermal insulation composite material: carbon fibers with short fibers as raw materials are immersed in a modifier for surface treatment, then metal modification, carbon layer deposition and inorganic layer coating are sequentially performed on the surface; the carbon fibers and inorganic materials are compounded and hot-pressed, and then high-temperature graphitization treatment is performed, so that the short-fiber hard thermal insulation composite material is obtained. The process can improve the connection strength between the short fibers and the inorganic materials, improve the mechanical properties of the composite material, and has higher graphitization degree and good thermal insulation performance.

An adjustable storage goods shelf relates to the field of goods shelves and comprises two vertically arranged support frames and a placing frame transversely arranged between the two support frames, the placing frame comprises two cross beams arranged in parallel and a plurality of groups of span beam structures arranged between the two cross beams in a spanning mode, each span beam structure comprises two movable beams arranged side by side, and the adjacent side faces of the two movable beams are inclined planes. A first baffle and a second baffle are vertically arranged at the two ends of the movable beam, the two baffles are located on the outer sides of the two cross beams, the second baffle is attached to the outer side of the cross beam on the side where the second baffle is located, a gap is formed between the first baffle and the outer side of the other cross beam, and the first baffle and the outer side of the other cross beam are locked through a locking piece. According to the cross beam structure, through the matching structural design of the baffles at the two ends of the two movable beams and the corresponding cross beams, the cross beams do not need to be machined, transverse adjustment of the movable beams on the cross beams is achieved, namely the distance between the two movable beams can be adjusted, and therefore the cross beam structure can adapt to the storage requirements of barrel-shaped goods with different diameters and is high in universality.

This invention relates to the field of sludge treatment technology, and more particularly to a method for preparing struvite by acid leaching of phosphorus from sludge gasification residue with kaolinite assistance. The method includes the following steps: S1, calcining a mixture of kaolinite and sludge in a certain proportion at 800-1000℃ for a period of time; S2, dissolving the calcined product with an acid solution, separating the solid and liquid, and collecting the phosphorus-containing supernatant; S3, adding a certain amount of magnesium and ammonium sources to the phosphorus-containing supernatant, adjusting the pH to 9.4-10, stirring for a period of time, separating the solid and liquid, washing the filtered solid with deionized water, and drying to obtain struvite crystals. This invention introduces kaolinite before sludge calcination, increasing the phosphorus content in the calcined product, improving the utilization rate of sludge gasification residue, and solidifying heavy metals in the sludge. It avoids a large amount of heavy metals entering the phosphorus-containing supernatant during acid leaching, resulting in a stable and reliable MAP struvite material.

The utility model provides a splicing type rotor structure and a tool, the splicing type rotor structure comprises a rotating shaft, and the rotating shaft is provided with a positioning hole; the multiple sections of rotor iron cores are arranged on the rotating shaft in a stacked and sleeved mode, a plurality of limiting strips are arranged in the circumferential direction of the rotor iron cores, and a limiting groove is formed between every two adjacent limiting strips; the limiting grooves are matched with the magnets; the two rotor end plates are arranged on the rotating shaft in a sleeving mode, the two rotor end plates are located at the two ends of the multiple sections of rotor iron cores which are arranged in a stacked mode respectively, each rotor end plate comprises a first connecting part and a second connecting part, and a connecting through hole is formed in each first connecting part; a fixing pin penetrates through the connecting through hole and the positioning hole to fix one of the rotor end plates at one end of the rotating shaft, and one side, deviating from the first connecting part, of the second connecting part is connected with the end face of the rotor iron core in an adhesive mode. According to the utility model, the low-cost manufacturing requirement of a long-size rotor can be met, and the applicability is high.

This application relates to the field of construction machinery and discloses a hook module and a tower crane. The hook module includes an upper pulley assembly, a lower pulley assembly, and a hook assembly arranged sequentially along a first direction. The upper pulley assembly includes an upper pulley frame and a mounting mechanism. A mounting section is provided at one end of the upper pulley frame facing the lower pulley assembly. Mounting mechanisms are provided on both sides of the mounting section in a second direction. The mounting ends of the mounting mechanisms on both sides of the mounting section are aligned and extendable along the second direction. A hanging structure is provided at one end of the lower pulley assembly near the mounting section. The hook assembly is mounted on the lower pulley assembly. This application achieves automatic ratio switching through the mechanical cooperation between the mounting mechanism and the hanging structure. It has a simple structure, is easy to operate, reduces manufacturing costs, and ensures reliability.