20results about How to "Uniform transition" patented technology

The invention discloses a heat-treated steel rail with good comprehensive mechanical properties. The steel rail comprises the following chemical components in percentage by weight: 0.70-0.80% of C; 0.50% to 0.70% of Si; 0.80% to 1.00% of Mn; 0.02 to 0.10 percent of V; 0.02 to 0.07 percent of Nb; ti: 0.005% to 0.020%; less than or equal to 0.020% of P; less than or equal to 0.015% of S; al is less than or equal to 0.01%; the balance is Fe and inevitable impurities; the invention further discloses a preparation method of the heat treatment steel rail with the good comprehensive mechanical property. The preparation method comprises the steps of molten iron pretreatment, converter smelting, LF ladle refining, VD vacuum degassing, continuous casting, steel billet heating and steel rail rolling. The invention aims to provide the heat-treated steel rail with good comprehensive mechanical properties, and the heat-treated steel rail with good strength and toughness ratio can be prepared, and the service life of the steel rail under freight heavy load conditions can be prolonged.

The invention discloses a preparation tool for inner hole thermal barrier coating and a preparation method thereof, the preparation tool comprises: a turntable, a turntable, a support, a bracket, a cooling device and an exhaust and dust removal device; the workpiece is coaxially installed in the bracket; two supports are respectively fixed at two ends of the bracket, and the center of each support is processed with a quick-install structure A; the turntable is installed on the turntable; the center of the turntable is processed with a quick-install structure B; one of the supports is coaxially installed on the turntable through the quick-install structure A and the quick-install structure B; the quick-install structure A of the support, the quick-install structure B of the turntable and the center of the turntable are all processed with through holes, the three through holes are connected to form a channel, and the channel is connected to the inner cavity of the workpiece; the exhaust and dust removal device exhausts air from the inner cavity of the workpiece through the channel; the cooling device is located outside the bracket, and cools the workpiece through the bracket; the invention can ensure that the deformation degree of the workpiece is reduced during the inner hole spraying process, meet the coating requirements, reduce the product scrap rate, and increase production efficiency.

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 utility model provides a lighting device which comprises a first lighting system, a second lighting system and a third lighting system, and a first optical module or a second optical module in the first lighting system can form an elliptical light spot and a circular light spot on a surgical field area. By adjusting the first optical module and the second optical module, dynamic conversion between an elliptical light spot and a circular light spot can be achieved, the diameter or illumination of the circular light spot and the long-short axis proportion or illumination of the elliptical light spot can be adjusted, and the illumination requirements of surgical field areas in different scenes can be met; a second illumination light spot formed by the second illumination system increases the illumination area on the operation field area, and the visual fatigue of the operation personnel is relieved; the color temperature and / or wavelength of a third illumination light spot formed by the third illumination system is different from the color temperature and / or wavelength of the first illumination light spot and the second illumination light spot, by setting the color temperature and / or wavelength of the third illumination light spot, eyestrain of an operator can be relieved, and the system is suitable for various operation environments such as non-external wound operations or cavity operations.

The present invention relates to a three-segment on-track image de-stairing processing method, which belongs to the field of image processing technology and solves the problem of steps appearing after the strip images are spliced ​​and the image block effect caused by different image stretching degrees after the splicing of different strip images. The method first divides the strip image to be corrected into four regions, namely, a retention region, a sin region, a linear region and a vignetting region; according to the position of the inflection point of the image to be corrected, different stretching coefficients are constructed for the four regions, and the corresponding regions are stretched using different stretching coefficients, which can effectively remove the phenomenon of steps in the strip and avoid the block effect. The method of the present invention adaptively solves the stretching coefficient according to the characteristics of the image itself, so that the image transitions evenly and avoids the stair effect.

The invention relates to the field of tires, in particular to an all-steel radial tire which comprises a tire body layer, a tire core layer and a tire core layer, the steel wire wrapping cloth layer is arranged on the outer side of the tire body layer and connected to form a framework; the lining rubber layer wraps the inner side of the framework, is arranged on the outer side of the tire body layer and covers the steel wire wrapping cloth layer; the seam allowance rubber layer wraps the seam allowance part of the framework; wherein a rim fitting width point w1 is arranged on the edge of the outer side of the seam allowance rubber layer; a first positioning line L1 is formed by extending along the vertical direction from the rim bonding width point w1; and the inner end point of the steel wire wrapping cloth layer is lower than or equal to the intersection point of the first positioning line L1 and the inner contour of the tire. According to the all-steel radial tire, the inner end point of the steel wire wrapping cloth layer is limited to be lower than or equal to the intersection point of the first positioning line L1 formed by extending from the rim bonding width w1 in the vertical direction and the inner contour of the tire, so that the rigidity of the tire bead part of the tire can be in uniform transition, and the bearing performance of the tire bead part is improved.

The invention provides a laser welding method for a trumpet-shaped joint, which relates to the field of metal material processing and comprises the following steps: S1, two to-be-welded steel plates form a trumpet-shaped to-be-welded welded junction, and at least one to-be-welded steel plate is trumpet-shaped; s2, laser wire filling welding is adopted for welding, and the welding wire adding position is located at the horn mouth; the distance between the top end of the welding wire and the two steel plates to be welded is 0-1mm; the incident angle of the laser beam is within + / -10 degrees of the angular bisector of the horn-shaped welding opening; the focus of the laser beam is positioned on the axis of the top end of the welding wire and is 0-10mm away from the axis of the And the feeding speed of the welding wire is 2-5 times of the welding speed. By means of the laser filler wire welding mode, laser welding of the horn-shaped welded junction is achieved, weld joint transition is uniform, the surface is in an arc shape, and the defects of undercut and the like are avoided. Defect-free welding of a horn-shaped welded junction is achieved, and surface transition of a weld joint is uniform. The welding process is simple and easy to operate.

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 utility model provides a lighting device which comprises a first lighting system, a second lighting system and a third lighting system. The first illumination system can form a first illumination light spot with uniform illumination on the surgical field area, and the first illumination light spot provides high-brightness illumination on the surgical field area; the inner diameter of a second illumination light spot formed by the second illumination system is smaller than the radius of the first illumination light spot, and the outer diameter of the second illumination light spot is larger than the radius of the first illumination light spot, so that the first illumination light spot and the second illumination light spot can be in uniform transition, the second illumination light spot increases the illumination area on an operation field area, a better visual environment is complementarily provided, and the operation efficiency is improved. Eye fatigue of operation personnel can be relieved; the color temperature and / or wavelength of a third illumination light spot formed by the third illumination system is different from the color temperature and / or wavelength of the first illumination light spot and the second illumination light spot, by setting the color temperature and / or wavelength of the third illumination light spot, the visual fatigue of an operator can be relieved, and the system is suitable for various operation environments such as non-external wound operations or cavity type operation lamps.

The invention provides a T-shaped joint laser welding method, which relates to the field of metal material processing, and comprises the following steps: S1, fixing a bottom plate and a vertical plate of a steel plate to be welded into a T shape; s2, a laser head is adjusted to align the axis of a laser beam to the intersection point of the vertical plate and the bottom plate, wherein the included angle between the incidence direction of the laser beam and the bottom plate is alpha 1; s3, laser wire filling welding is adopted for welding, and the welding wire adding angle and the wire feeding speed are controlled; the included angle alpha 2 between the adding angle of the welding wire and the bottom plate is 45 + / -5 degrees, and the included angle alpha 3 between the adding angle of the welding wire and the axis of the laser beam is 60-90 degrees; the wire feeding speed V1 is equal to V2 * 0.8 * delta * cos alpha 1; wherein V1 is the wire feeding speed; v2 is the welding speed; delta is the thickness of the vertical plate. The T-shaped joint laser welding device is used for T-shaped joint laser welding, the problem that a T-shaped joint cannot be formed in a single-face and double-face mode is solved, weld joint transition is smooth after welding, and the strength of a welded joint is improved. One-side welding and two-side forming of the T-shaped joint are realized, and the surface transition of the welding seam is uniform. The welding process is simple and easy to operate.

The present invention discloses a floodlight structure for the rear fuselage of a refueling machine, comprising: a lamp housing, which has a housing peripheral wall and a housing connecting wall, wherein the housing peripheral wall defines a housing chamber that passes through from top to bottom; a lamp cover; a fixed pressure ring, which is fixed by the fixed pressure ring and the housing connecting wall; a heat dissipation base, which is arranged below the lamp housing, and the heat dissipation base has a base top wall, a base peripheral wall and a base heat sink; a driving circuit printed circuit board; a bottom cover plate, which is fixedly connected to the base peripheral wall; a socket component; and a light source module, which is placed inside the housing chamber, and the light source module has a light source fixing seat, a light source printed circuit board, an insulating sheet and a reflective bowl. The beneficial effect of the present invention is to solve the problem of no lighting equipment in the rear fuselage area when the refueling machine is refueling at night.

The invention provides a high-temperature multi-calcination comprehensive furnace for bamboo salt. The bamboo salt high-temperature multi-calcination comprehensive furnace comprises a supporting frame, the interior of the supporting frame is fixedly connected with a calcination and cooling integrated box body through a fixing ring, the front side of the calcination and cooling integrated box body is fixedly connected with a first lateral fixing plate, and the rear surface of the calcination and cooling integrated box body is fixedly connected with a second lateral fixing plate; and a calcining heater is arranged in the calcining and cooling integrated box body. The problem that seamless switching of traditional equipment between the calcining process and the cooling process is difficult is effectively solved, through combination of the calcining and cooling integrated box and the adjusting device, the equipment can achieve uniform transition of the temperature, continuity of the calcining process and the cooling process is guaranteed, and therefore the quality of bamboo salt is greatly improved; the optimized structural design reduces the complexity of the equipment and reduces the maintenance cost.

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.

The invention provides a glass forming system, and relates to the technical field of glass processing.The glass forming system comprises a heating section, a pre-bending section and a forming section which are sequentially arranged, the heating section comprises a heating roller way and a heating mechanism, and the bending depth of the heating roller way is set as a first curvature; the pre-bending section comprises a pre-bending roller way and an auxiliary heating mechanism, the bending depth of the pre-bending roller way is set as a second curvature, and the second curvature is not smaller than the first curvature; the forming section comprises a forming roller way and a cooling mechanism, the bending depth of the forming roller way is set as a third curvature, and the third curvature is not smaller than the second curvature. The pre-bending roller way and the forming roller way can form a main bending direction, and the pre-bending roller way and the forming roller way are arranged in an arc shape to form an auxiliary bending direction, so that a multi-dimensional composite curved surface is favorably formed on glass by controlling the bending amplitude in the main bending direction and the bending amplitude in the auxiliary bending direction; and the curved surface modeling flexibility of the glass is obviously improved.