9results about How to "Uniform transition" patented technology

This invention discloses a zirconium-lanthanum bulk co-doped high-nickel ternary material, its preparation method, and a battery. The zirconium-lanthanum bulk co-doped high-nickel ternary material is a ternary cathode material with bulk co-doped zirconium and lanthanum; the chemical formula of the ternary cathode material is LiNi. x Co y Mn (1‑x‑y) O2, wherein 0.8≤x≤0.9, 0≤y≤0.1; the total molar amount of zirconium and lanthanum is 1%~5% of the total molar amount of nickel, cobalt and manganese. The zirconium-lanthanum bulk co-doped high-nickel ternary material provided by the present invention enhances the mechanical strength of the ternary material through the bulk co-doping of zirconium and lanthanum, suppresses cracking and pulverization of the ternary material during charge and discharge, and improves cycle stability; at the same time, the two elements Zr and La synergistically stabilize the lattice, reduce lithium-nickel mixing, suppress irreversible phase transformation and lattice oxygen precipitation, achieve dual stability of bulk phase and interface, and improve the consistency and stability of the zirconium-lanthanum bulk co-doped high-nickel ternary material.

The invention discloses a dissimilar material integrated manned lunar rover wheel hub and a forging-material adding-re-forging integral forming method thereof, and relates to manned lunar rover wheel hubs and forming methods thereof. The invention aims to solve the problem that the wheel-shaped component made of the dissimilar aluminum alloy material is difficult to integrally form. An integrated manned lunar rover wheel hub made of dissimilar materials is formed by connecting a rim and a spoke, the rim is composed of a rim body, an outer ring assembling ring and strip-shaped reinforcing ribs, and the spoke is composed of a plurality of Y-shaped sheet-shaped thin plates, an axle assembling flange and a transition area. The method comprises the steps of 1, blank making; 2, forging and forming a rim and a transition area; 3, finishing an additive interface; 4, adding materials; 5, homogenizing heat treatment; sixthly, integral forging forming is conducted; 7, aging strengthening treatment; and 8, machining and forming the wheel part. The method is used for the dissimilar material integrated manned lunar rover wheel hub and forging-material adding-re-forging integral forming of the dissimilar material integrated manned lunar rover wheel hub.

This utility model discloses a light-emitting component and a lamp, including a reflector cup and a biconvex lens. A reflective surface is provided on the inner side of the reflector cup, forming a reflective channel. One end of the reflective channel has a light inlet, and the other end has a light outlet. The biconvex lens is disposed on the reflector cup and covers the light outlet. The biconvex lens has an inner protrusion and an outer protrusion. The inner protrusion faces the reflective channel, and the outer protrusion faces away from the reflective channel. The light-emitting component uses a reflector cup and a biconvex lens. When in use, the biconvex lens can also narrow the range of the secondary light spot, resulting in a more uniform transition between the main and secondary light spots, a clear and rounded outer edge of the light spot, and good overall brightness. Furthermore, the inner protrusion of the biconvex lens faces into the reflective channel, while the outer protrusion faces away from the reflective channel, reducing the outward convexity of the biconvex lens relative to the reflector cup. This makes the structure of the light-emitting component more compact and improves its versatility in assembly.

The present invention provides a pressing mold and a preparation method thereof. A pressing mold is used to form a concave structure at a specific position where a BGA area is to be formed on a circuit board to be pressed, so as to carry BGA components in the future, thereby improving the deformation tolerance of the BGA area and the circuit board surface during the pressing process, and reducing the probability of desoldering and pulling of the BAG area during the circuit board production process. Secondly, a stable pressing mold is formed by pre-pressing a semi-cured sheet stacked with upper and lower copper foils and a sleeve circuit board matching plate. The characteristics of the semi-cured sheet are used as a supporting structure of the pressing mold by using a stacked fiber layer, and the resin that melts and flows during pressing is used as a filler to fill the gap in the pressing mold, so that the height difference of the pressing mold at the upper convex structure changes slowly, avoiding damage to the circuit board surface to be pressed when the pressing mold is used, and improving the reliability of circuit board production.

The invention relates to high-sulfur steel for an automobile hub and a preparation method of the high-sulfur steel. The preparation method comprises the following steps: converter smelting (taking quantitative non-desulfurized molten iron and high-quality scrap steel as raw materials for primary smelting and tapping in a converter, sequentially adding silicomanganese and high-carbon ferromanganese according to the sequence, and adjusting the S content according to the S content of molten steel at the end point of the converter and by adding ferrous sulfide in the tapping process), LF refining, continuous casting and steel rolling. By using the high-sulfur steel for the automobile hub produced by the invention, the Mo element and a large amount of Ti element do not need to be independently added, so that a large amount of cost can be saved. The steel has good cutting performance, meanwhile, the steel needs to have excellent obdurability to keep part stability, and the mechanical performance in the hot rolling state can meet the following requirements that the tensile strength is larger than or equal to 735 Mpa, the lower yield strength is larger than or equal to 420 Mpa, the ductility is larger than or equal to 16%, and the hot rolling hardness ranges from 210 HB to 240 HB.

This invention discloses a heat treatment method for train wheels, comprising the steps of: S1, heating the wheel; S2, water-quenching the wheel; and S3, tempering the wheel. In step S2, a composite nozzle is used, with a first nozzle region, a second nozzle region, and a third nozzle region sequentially arranged on the composite nozzle. The first nozzle region is equipped with a first nozzle for spraying air onto the wheel tread surface, the second nozzle region is equipped with a second nozzle for spraying water mist onto the wheel tread surface, and the third nozzle region is equipped with a third nozzle for spraying cooling water onto the wheel tread surface. This heat treatment method for train wheels utilizes a composite nozzle during quenching to reduce the near-surface cooling rate of the wheel tread surface. By employing compressed air and appropriately adjusting the flow rate of cooling water (small / large flow), the rapid cooling of the near-surface layer of the rim is reduced, effectively increasing the cooling rate of the internal matrix. This results in a more uniform microstructure in the radial direction of the wheel rim, achieving a uniform transformation of the internal microstructure and reducing the hardness gradient.

The application relates to the technical field of spinning, and discloses a dry-wet process spinning machine, which comprises a rack, a movable frame, a glue liquid pipeline, a glue liquid distribution disc and a spinning assembly. The movable frame is arranged on the rack in a lifting and moving mode; the glue liquid pipeline is arranged on the movable frame; the glue liquid distribution disc is arranged on the movable frame and located on the lower side of the glue liquid pipeline and in communication with the glue liquid pipeline; the spinning assembly is arranged on the movable frame and located below the glue liquid distribution disc and in communication with the glue liquid distribution disc; and a temperature control layer is arranged on the outer sides of the glue liquid pipeline, the glue liquid distribution disc and the spinning assembly and used for heating and heat preservation. The air supply part is provided with an air supply cavity, the air supply cavity is provided with an air supply inlet and a plurality of air supply outlets, the air supply outlets are located on the side wall of the air supply part, and the spinning assembly is located above one side of the air supply outlets. Through the technical scheme, the problems of the existing technology, such as the difficulty in treating the flaws of the yarn, the complicated operation, the waste of time and the inconvenience in controlling the temperature of the glue liquid, are solved.

This invention relates to the field of beauty and hairdressing technology, specifically to a hair dyeing method for hair styling. This invention employs a precise application process, dividing the hair into sections and applying the dye to the ends first, followed by the roots, while controlling the oxidation reaction time and temperature. Finally, a special conditioner is used for color-locking treatment. This method effectively covers gray hair and produces a uniform and natural color after dyeing. The dyeing process is safe, comfortable, and non-irritating. Furthermore, this invention combines dyeing, immediate repair, and long-lasting color fixation, achieving an integrated approach from operation to effect, significantly improving the overall quality of hair styling and the user experience.

The invention discloses a high-strength RPC cover plate and a preparation method thereof, and relates to the technical field of building materials, the RPC cover plate comprises the following raw materials by weight: 100-200 parts of cement; 50 to 100 parts of a modified mineral admixture; 200 to 400 parts of a modified aggregate / fiber compound; 10 to 20 parts of modified carboxylic butadiene-styrene latex; 10 to 50 parts of crushed stone; 10-30 parts of reinforcing steel bars or steel wires; 1-5 parts of an additive; 100 to 300 parts of water; the preparation method comprises the following steps: carrying out dry mixing on dry materials, sequentially adding the admixture, water, the modified carboxylic butadiene-styrene latex and the crushed stone pieces, putting into a mold, vibrating, putting reinforcing steel bars or steel wires, and continuously vibrating; flattening the surface, and covering with a film; and demolding, dry curing and watering are conducted, and the high-strength RPC cover plate is obtained. The RPC cover plate has the beneficial effects that the prepared RPC cover plate has excellent compressive strength and breaking strength, and also has excellent heat insulation, heat resistance, corrosion resistance and wear resistance.