48results about How to "Obvious cost advantage" patented technology

The utility model discloses a kind of lifting rod structure and shower, the lifting function of bar can be realized, and product can be designed thinner. Among them, lifting rod structure includes wall seat, bar, limiting piece, elastic member and operating part;The wall seat is pre-fixed on mounting surface;The bar is along with the wall seat sliding fit along up-down direction;The limiting piece is along with the bar sliding fit in left-right direction, for when realizing the locking of up-down direction when abutting the wall seat;The elastic member is arranged in the bar and acts on the limiting piece, to make the limiting piece abut the wall seat;The operating part is parallelly arranged with the movement direction of the limiting piece, and telescopic cooperation is in the side of the bar;The operating part and the limiting piece linkage to realize user through the operating part drive the limiting piece and the wall seat separate.

The application discloses application of a naphthalene nitrile derivative in preparation of an antitumor pharmaceutical composition, in particular, application of a 2-(imino)-naphthalene nitrile derivative in preparation of an antitumor pharmaceutical composition. The 2-(imino)-naphthalene nitrile derivative provided by the application has a significant inhibiting effect on colon cancer, liver cancer, lung cancer, prostate cancer, cervical cancer, neuroglioma and breast cancer, exhibits excellent antitumor characteristics, can be used as a leading drug molecule for resisting tumors, and has a good development and application prospect in development of antitumor drugs.

The application discloses a preparation method of a silodosin key intermediate and belongs to the technical field of drug chemical synthesis. The silodosin key intermediate is prepared from indoline as raw material through halogenation, cyanation, N-benzoylpropylamine protection, substitution, amination, reduction and salt formation, and the silodosin key intermediate is compound 1. The synthesis line is novel, the raw reagents are easy to obtain or prepare, high-risk and high-pollution reagents are not used, the method is safe, environment-friendly, mild in reaction condition, easy and controllable to operate, the prepared silodosin key intermediate is good in purity, high in yield and high in atom utilization rate, and the industrial production problem of silodosin can be practically solved.

This invention discloses a method for preparing high-transparency tamarind polysaccharide gum through decolorization and deodorization. A combined purification process of enzymatic hydrolysis-sedimentation-chemical degradation-solvent washing-ultrafiltration is employed. Enzymatic hydrolysis degrades large molecules of proteins and fats in the extract into smaller molecules. Sodium hypochlorite is used for chemical degradation, oxidizing aldehydes and ketones in the extract into carboxylic acids. Finally, organic solvent washing and ultrafiltration purification remove impurities generated during enzymatic hydrolysis and chemical degradation, ultimately yielding high-transparency, odorless tamarind polysaccharide gum. The final product is white, with a transmittance of up to 95.4% at a 1% concentration, and is completely odorless, significantly improving product quality. This preparation process is simple, operates under mild conditions, and is suitable for industrial production.

The utility model discloses an AC charging pile CP signal generating circuit, comprising a level conversion module and a push-pull output module, the level conversion module is used for converting a PWM signal output by an IO port of an MCU into a + / -12V CP signal, and the push-pull output module is connected to the level conversion module and is used for driving high and low level switching of the CP signal. The level conversion module comprises a resistor R1, the left end of the resistor R1 is connected with PWM signals output by an IO port of the MCU, the right end of the resistor R1 is connected with base electrodes of triodes Q2 and Q3, emitting electrodes of the triodes Q2 and Q3 are connected and connected with the lower end of a resistor R2 and the upper end of a resistor R3, the lower end of the resistor R2 is connected with the upper end of the resistor R3, the upper end of the resistor R2 is connected with a + 3.3 V power source, the lower end of the resistor R3 is grounded, and the lower end of the resistor R3 is grounded. The circuit provided by the utility model is simple, and the cost is lower.

The invention relates to a soil microorganism high-efficiency water purification filter material and a preparation process thereof, and aims to solve the problems of low removal efficiency, high cost, easiness in secondary pollution, insufficient affinity with soil microorganisms and the like of the existing microorganism filter material. The filter material is prepared by taking volcanic rock, activated carbon, bentonite and modified cellulose as main raw materials, combining the main raw materials according to a specific ratio, preparing porous particles by virtue of processes such as calcining, activating, mixing, granulating and sintering, and finally loading the porous particles by virtue of a microbial bacterial liquid. The product has a large specific surface area, good adsorption performance and high chemical stability, and can provide an excellent adhesion and growth environment for soil microorganisms. Experiments prove that the filter material can significantly improve the removal efficiency of pollutants such as COD, ammonia nitrogen and total phosphorus in sewage, and the filter material has the advantages of easily available raw materials, low cost and environmental friendliness, and is suitable for the fields of sewage treatment, ecological restoration and the like.

This invention discloses a method for preparing a low-absorption tantalum oxide thin film and its application in DWDM filters. The method includes the following steps: S1, placing the substrate in the reaction chamber of a mid-frequency magnetron sputtering system and evacuating the reaction chamber; S2, introducing argon and oxygen into the reaction chamber; S3, using a tantalum target, turning on the power of the mid-frequency magnetron sputtering system for pre-sputtering; S4, performing a second sputtering; S5, vacuum cooling to obtain a tantalum oxide thin film formed on the substrate. The tantalum oxide thin film prepared by this invention has an extinction coefficient k ≤ 5×10⁻⁶ in the 1550nm band, which is about two orders of magnitude lower than that of the prior art (k≈10⁻⁴). This invention does not require an ion source and can be achieved using only mid-frequency magnetron sputtering, resulting in low equipment requirements and significant cost advantages. A 100G DWDM filter made using the thin film prepared by this invention has an insertion loss ≤0.1 dB, which is better than the 0.2 dB of the prior art.

The utility model discloses a kind of clamping spring installation jigs, it is related to connector assembly technical field.The jig includes handheld part, push rod part, first spring and second spring.The shell of handheld part is equipped with through first passage;Push rod part is slidably arranged in passage, and it is made of hand push rod and mounting rod that can slide relatively, and mounting rod end is used to sleeve joint clamping spring to be installed.First spring provides the overall reset force of push rod part, and second spring is sleeved between two rods, stores energy and releases when mounting rod is positioned by clamping spring to support clamping spring.Optimal solution includes: tail cap is equipped with threaded connection at the tail of hand push rod;Two rods are equipped with guide disc part;The head of shell is additionally provided with limiting component with adapter part, for matching photovoltaic connector port.The utility model is simple in structure, low in cost, and realizes accurate installation of clamping spring by double spring cooperation, solve the problem of low efficiency of manual installation under small-batch scene.

This invention discloses a silicon-carbon composite anode material, its preparation method, and its applications. The preparation method includes: preparing a nitrogen-doped porous carbon framework from a carbon source, a nitrogen source, a pore-forming agent, and a soft template agent; surface-modifying the nitrogen-doped porous carbon framework with a silane coupling agent; subjecting the surface-modified nitrogen-doped porous carbon framework to chemical vapor deposition to obtain a silicon-carbon composite intermediate; and carbon-coating the silicon-carbon composite intermediate to form the silicon-carbon composite anode material. This invention improves the interfacial bonding strength between silicon and the carbon framework through chemical anchoring, and provides sufficient buffer space for silicon volume expansion through the synergistic pore-forming effect of the pore-forming agent and the soft template agent, thereby improving cycle stability. All steps are conventional chemical unit operations, and the raw materials used are all industrial-grade chemicals. The equipment requirements are low, and it is easy to scale up production.

This invention discloses a short-process rapid solidification / powder metallurgy technology and its applications. The short-process rapid solidification / powder metallurgy technology of this invention includes the following steps: Step 1: Using metal wire or powder as raw material, a bulk blank with a thickness of 1-10 mm is deposited on a substrate using thermal spraying technology; the metal is selected from magnesium, titanium, copper, iron, nickel, zinc, aluminum, or their alloys; Step 2: The bulk blank is thermomechanically processed to obtain a sheet product; the thermal spraying technology includes flame spraying, supersonic spraying, arc spraying, plasma spraying, or cold spraying; the thermomechanical processing includes hot rolling, hot extrusion, or hot forging. This invention significantly shortens the preparation process, consumes less energy, has low overall production costs, and has wide applicability, and can be applied to the preparation of metal matrix composites, ultrafine-grained metal materials, heterostructure metal materials, layered structure metal composites, etc.

This invention discloses a coal gangue grouting and filling material with high rheological resistance and resistant to bleeding, its preparation method, and its application, relating to the field of mine filling material technology. The grouting and filling material, by mass percentage, comprises: 70%~75% coal gangue, 0.55%~2.3% composite rheology modifier, and the balance being water; wherein the composite rheology modifier includes an air-entraining agent and a dispersant, with a mass ratio of (90~99):(1~10); the air-entraining agent is a surface-active foaming material, and the dispersant is a phosphate additive. In its preparation, coal gangue is first mixed with water and stirred to obtain an initial slurry; then the air-entraining agent and dispersant are mixed to prepare the composite rheology modifier; finally, the composite rheology modifier is added to the initial slurry and stirred until homogeneous to obtain the grouting and filling material. This grouting and filling material uses coal gangue as the main raw material, has a simple preparation process, and possesses excellent fluidity, stability, and pumpability.

This invention discloses a method for manufacturing high-precision fine-line printed circuit boards, belonging to the technical field of printed circuit board manufacturing. The method includes: substrate surface treatment; high-precision screen printing pattern transfer, achieving a printing accuracy of ±10μm through a high-tension stainless steel screen, nano-modified anti-etching ink, and a high-precision vision alignment system; post-curing treatment to form an etch-resistant protective layer; segmented etching process with an etching factor of 8 or higher; ink removal and post-processing. This invention innovatively applies screen printing technology to the transfer of fine-line patterns. Through systematic optimization of screen production, ink formulation, printing parameters, and etching processes, it breaks through the precision limitations of traditional screen printing technology, enabling stable manufacturing of fine lines of 0.25mm / 0.25mm and below, effectively solving the open / short circuit problem caused by side etching, achieving a yield rate of over 98%, and significantly reducing production costs. This method is suitable for the mass production of rigid, flexible, and rigid-flex PCBs.

The application provides a medium-sized unmanned aerial vehicle structure function integrated grid oil tank which can be automatically integrally formed and a forming method, and relates to the field of unmanned aerial vehicle structure design. The oil tank comprises an integrated oil tank body, a grid separation layer and an oil inlet and outlet interface. The oil tank body is integrally molded by upper and lower skin, the grid separation layer is co-cured with the skin by insert injection molding of short-cut carbon fiber reinforced thermoplastic resin to form a honeycomb grid, and the oil inlet and outlet interface is an aluminum alloy flange which is fixed on the bottom of the oil tank by welding of aluminum alloy and thermoplastic composite material. The application is based on the design and process technology of long and short fiber hybrid integrated oil tank. The main load-bearing shell can be automatically integrally formed. The oil tank skin uses long continuous fiber composite material to ensure the bearing capacity. The oil tank grid uses short-cut fiber composite material to realize sequential oil supply, anti-overload, anti-shaking and other functions, greatly reduces the number of oil tank parts, and has the potential for full automation manufacturing.

The invention discloses a bamboo-based derived nitrogen-doped hard carbon negative electrode material and a preparation method and application thereof.The preparation method creatively utilizes the characteristic that bamboo wood is rich in natural phenolic hydroxyl groups and comprises the steps that bamboo powder and an aldehyde group compound are subjected to in-situ phenol-aldehyde polycondensation under the alkaline condition, and a cross-linked network precursor is constructed; then adjusting the pH to weak acidity, and carrying out in-situ amination doping with a nitrogen-containing compound; and finally, carbonizing to obtain the nitrogen-doped hard carbon material. According to the method, structural reconstruction and uniform nitrogen doping of the bamboo-based precursor are synchronously realized through two-step continuous molecular-level reaction of'alkaline polycondensation-acidic amination '. When the obtained material is used as a sodium ion battery negative electrode, high reversible specific capacity (greater than 304 mAh / g), high first coulombic efficiency (greater than 92%) and excellent cycling stability (300-week capacity retention rate at 0.5 C is greater than 92%) are shown. The method is simple in process, green, low in cost and suitable for large-scale production.

This invention relates to the field of welding automation technology, and more particularly to a device specifically designed for automatic welding of U-shaped welds. The device includes a work platform, a welding torch movement adjustment mechanism, a welding torch posture adjustment unit, a welding system, and a control system. The control system integrates an inflection point steering control module, which, through software-set trajectory settings, controls the welding torch posture, current, voltage, and welding speed during welding. This allows the invention to achieve smooth, continuous, and automatic welding at the inflection points of U-shaped welds without requiring pauses, adjustments, or repeated arc striking. This invention significantly increases welding efficiency, reduces welding difficulty, and improves welding quality.

This invention relates to the field of ammonium dihydrogen phosphate (MDP) production technology. It discloses an apparatus and method for producing low-impurity, fully water-soluble MDP using a concentrated acid process. The apparatus comprises sequentially connected systems for acid adjustment, neutralization reaction, impurity removal and aging, filtration and separation, triple-effect concentration, continuous steady-state crystallization, and drying. The core of the method lies in the neutralization system, which employs a three-stage series connection of a rapid ammoniation reactor, a tubular reactor, and a slurry tank to achieve segmented pH control for neutralization. Furthermore, it innovatively uses self-produced ammonium fluoride as a purification agent, combined with pH reversal technology, to deeply remove metallic impurities such as Fe, Al, and Mg from wet-process phosphoric acid. After concentration, the slurry undergoes a unique de-crystallization-steady-state crystallization system to obtain large-size, high-purity crystals. This method enables the stable production of high-end MDP with a main content ≥99% and water-insoluble matter ≤0.01% using low-cost wet-process phosphoric acid as raw material, achieving a phosphorus yield of over 71%, and can replace thermal process products.

A method for calculating the energy expenditure of experimental mice based on behavior tracking, relating to the fields of computational behavioral science and physiology, mainly includes the following steps: experimental data acquisition; foreground mask generation based on adaptive background subtraction; generating target detection rectangles for the mice in all video frames to determine the real-time position of the experimental mice; calculating the macroscopic displacement energy of the experimental mice at each moment during movement; processing to obtain the energy features of the microscopic movements of the experimental mice; performing feature fusion to construct a binary feature vector and inputting it into a gradient boosting tree (XGBoost) regression model to jointly map and obtain the energy expenditure of the experimental mice at each moment. This invention achieves metabolic energy expenditure prediction with high consistency with the gold standard of indirect calorimetry by constructing a dual-flow continuous physical quantification model that integrates macroscopic displacement work and microscopic spectral energy.

This invention discloses a method and device for monitoring patchy fog based on a visible light image sensor and a point laser, belonging to the field of atmospheric visibility monitoring technology. The device includes a linearly calibrated visible light image sensor, a point laser emitter mounted parallel to the sensor's optical axis, and a synchronization control and data processing unit. The core of the method lies in: synchronously controlling and alternately acquiring image pairs of the laser being on and off, performing differential analysis to eliminate background interference, and obtaining a pure laser atmospheric scattering signal; integrating along the laser spot normal direction to obtain an initial brightness profile curve; based on the fixed spatial pose relationship between the sensor and the laser, mapping the brightness curve in image coordinates to a corrected brightness curve in real spatial distance coordinates through a geometric correction model; calculating the mean and variance of the corrected brightness curve, and calibrating it using standard instruments; and finally simultaneously obtaining the average path visibility value and the patchy fog intensity index. This invention is low-cost, has strong anti-interference capabilities, and can effectively achieve quantitative identification and spatial positioning of patchy fog, making it suitable for large-scale deployment in scenarios such as highways.

This invention relates to a water circuit switching structure and a toilet, characterized by comprising a water tank, a float, and a limiting block. The water tank has an inlet, a first outlet, and a second outlet. The float is movably positioned between the inlet, the first outlet, and the second outlet. The limiting block is located inside the water tank. When water enters through the inlet, the limiting block restricts the float to a first position, connecting the inlet to the first outlet. When water stops flowing through the inlet, the limiting block releases the float, and the float moves to a second position under buoyancy, resuming water supply to the inlet and maintaining the float in the second position, connecting the inlet to the second outlet. This invention has the following advantages: 1. It reduces reliance on a motor, reducing the occurrence of malfunctions. 2. The switching structure is simple, stable, and reliable, offering significant cost advantages. 3. It has a wide range of applications.

This invention belongs to the field of sensor and machine learning technology. It proposes a simulation test system and method for the mechanical properties of rock joints based on the principle of equivalent body force field. The main components include: constructing a geomechanical similarity model based on the principle of equivalent body force field, including a base and a rock mass physical model. When the base moves relative to the interface of the rock mass physical model, the friction between the base and the bottom surface of the rock mass physical model generates uniformly distributed shear stress, which generates equivalent body force intensity inside the rock mass physical model; collecting multidimensional sensing data when the base moves relative to the interface of the rock mass physical model; automatically identifying the rock mass joint extension trajectory based on the multidimensional sensing data and using an improved U-Net machine learning model; obtaining displacement field data through an improved particle image velocimetry combined with an optical flow algorithm; using a Bayesian inference inversion model to invert the mechanical parameters of the joint surface; and evaluating the uncertainty of the inversion results using the Markov chain Monte Carlo method.

The application belongs to the technical field of crystal processing, and particularly discloses a method for repairing surface lattice constants of a cadmium zinc telluride (Cd 1‑x Zn x Te, CZT) single crystal substrate. The method comprises the following steps: placing the CZT single crystal substrate in a vacuum treatment chamber, and irradiating and treating the CZT single crystal substrate by using pulsed ultraviolet laser with a wavelength less than 300 nm and a pulse width less than 30 ns, so as to remove the surface oxidation layer and the strain layer, expose the body lattice of the CZT single crystal substrate, and repair the surface lattice constants. The method is a non-contact treatment method, the process is simple, and no chemical reagent is needed. The method can effectively repair the surface lattice constants of the CZT single crystal substrate, improve the lattice matching degree between the CZT single crystal substrate and mercury cadmium telluride (MCT), and further improve the quality of the epitaxially grown MCT. The method solves the problem of lattice mismatch between the surface lattice of the existing CZT single crystal substrate and the epitaxial layer of the MCT due to cutting, polishing and natural oxidation, and simultaneously avoids the problems of human body harm and environmental pollution caused by the use of toxic reagents in the traditional chemical mechanical polishing.

This invention discloses an online detection method and device for the trajectory of sphere polishing, relating to the field of precision machining online detection. The method includes: S1, acquiring a continuous image sequence during the sphere polishing process at time i using a high-speed camera; S2, preprocessing and feature recognition of the continuous image sequence; S3, a rotation angular velocity measurement module calculating the rotation angle and rotation angular velocity to obtain theoretical values; and a three-dimensional trajectory reconstruction module radially projecting discrete trajectory points onto a sphere surface determined based on the first point, to achieve visualized three-dimensional trajectory reconstruction under geometric constraints, thus completing the online detection of the sphere polishing trajectory. This invention combines a transparent grinding disc structure, a multi-view observation layout, and a dedicated image processing algorithm to achieve real-time, high-precision, and high-efficiency online detection of the sphere's rotational motion parameters and trajectory during the polishing process.

The invention belongs to the technical field of permanent magnet materials, and relates to a composite permanent magnet material with high magnetic performance and high temperature stability and a preparation method and application thereof. The invention discloses a preparation method of a composite permanent magnet material with high magnetic performance and high temperature stability. The preparation method comprises the following steps: (1) respectively providing magnetic powder A and magnetic powder B; (2) filling the magnetic powder A at the bottom of a first mold, filling the magnetic powder B as a core part through a second mold, filling the magnetic powder A in the areas of the outer side surface of the second mold and the inner side surface of the first mold, taking out the second mold, and filling the magnetic powder A at the top to obtain loose powder; and (3) performing orientation molding, cold isostatic pressing and heat treatment on the loose powder to obtain the composite permanent magnet material with high magnetic performance and high temperature stability. According to the invention, two kinds of magnetic powder with different performances are filled in different areas, so that the performance of the surface layer and the core part of the magnet is accurately matched, and the composite permanent magnet material has high coercive force and high temperature stability.

The application provides a method for synthesizing adagrasyl by a convergent method. The adagrasyl is obtained through only five reaction steps from a starting material, and the route is shortened by nearly half the time compared with other patents. The application avoids the use of a high-cost palladium catalyst, and the cost of raw materials is greatly reduced. The route of the application has a huge cost advantage.

This invention belongs to the field of power factor correction technology for switching power supplies, specifically relating to a wide-load power factor correction circuit and power module. It includes a rectifier circuit, the input of which is connected to the power supply; and a π-type filter network comprising a first valley-fill circuit, an energy storage inductor, and a second valley-fill circuit connected in series. The input of the first valley-fill circuit is connected to the output of the rectifier circuit, and the output of the second valley-fill circuit is connected to the load. This invention addresses the problem of a narrow power factor correction range. By widening the conduction angle through a double valley-fill structure and combining it with a π-type filter network to suppress high-frequency harmonics and optimize the current waveform, the input current is made closer to a sine wave. Actual measurements show that the power factor remains between 0.91 and 0.95 within a range from full load to 10% light load, without requiring additional control chips, as all components are passive, significantly improving reliability. Compared to active PFC circuits, it offers a clear cost advantage.

The application discloses a coil device oil leakage detection method and device, and relates to the technical field of oil leakage detection. The method comprises the following steps: taking a picture of the oil level and oil temperature of a coil device through a monitoring device, and recording the oil level and oil temperature as reference values; regularly taking an image of the coil device; judging the oil volume and temperature change according to the image of the coil device, determining a normal oil level range, and issuing a warning when the normal range is exceeded; if the oil level exceeds the normal range, collecting at least three times to confirm the abnormality; after the confirmation, taking the abnormal oil level and oil temperature as the reference, and retesting, and if the abnormality occurs again, the coil device is determined to have an oil leakage fault; the method can timely inform the oil leakage risk of the device and accurately diagnose the risk, and has good application effects in terms of timeliness and accuracy. The method fully solves the problems of untimely manual inspection and subjective misjudgment in defect discovery.

The invention discloses a process for high-temperature harmless treatment of overhaul slag. The aluminum electrolysis overhaul slag is crushed and mixed with sodium carbonate and calcium carbonate, the sodium carbonate reacts with the overhaul slag at the high temperature to convert a fluorine-containing compound into soluble fluoride, meanwhile, the calcium carbonate is mixed at the high temperature, the soluble fluoride is converted into CaF2, and the fluorine curing effect is achieved. The method can effectively solve the problem of safe disposal of dangerous waste residues generated by electrolytic aluminum, so that the dangerous waste residues meet the environmental protection requirement, and the purpose of comprehensive and harmless treatment of the electrolytic aluminum overhaul waste residues is achieved.

The invention relates to the technical field of heat exchange equipment, and provides an inner rib type heat exchange device based on acoustic black holes and a design method of the inner rib type heat exchange device. Wherein the tube body is an inner ribbed tube, at least three inner ribs are evenly distributed on the inner wall of the inner ribbed tube in the circumferential direction, each inner rib is of a one-dimensional acoustic black hole structure, and the thickness of each inner rib is decreased progressively according to the power function rule in the direction away from one tube end; the baffle plate and the pass partition plate are of a one-dimensional acoustic black hole structure or a two-dimensional acoustic black hole structure, and if the baffle plate and the pass partition plate are of the one-dimensional acoustic black hole structure, the thicknesses of the baffle plate and the pass partition plate are gradually decreased in the single direction. If the acoustic black hole structure is a two-dimensional acoustic black hole structure, the thickness of the acoustic black hole structure is gradually reduced along any direction from the central position of the acoustic black hole or is designed into a variable-curvature curved surface. According to the scheme, the acoustic black hole structure and the inner finned tube type heat exchange device are combined, so that the problems of heat exchange efficiency, vibration noise and the like existing in a traditional heat exchange device are solved at the same time.

The invention discloses a solid state disk master control device, and belongs to the technical field of solid state disks. A mixed storage architecture is adopted and comprises a controller, a nonvolatile storage medium, a volatile storage medium and a plurality of NAND flash memories, the nonvolatile storage medium and the volatile storage medium are used in a mixed mode, and hierarchical and classified storage is carried out according to data characteristics; the nonvolatile storage medium and the volatile storage medium are integrated in the same address space through the controller, and intelligent hierarchical management of data is realized. Host write-in data is directly cached in a nonvolatile medium, metadata is stored in a volatile medium, and when the data size reaches a set threshold value, the data size is automatically brushed down to an NAND flash memory. According to the invention, an external capacitor is not needed, standby power-free data protection is realized through hardware architecture innovation, the material cost is obviously reduced by 20-40%, the PCB layout space is released, and the data loss risk caused by capacitor aging is fundamentally eliminated.

A zinc-based high-strength outer sheet with excellent formability and equipped with a GI or ZM coating, and its manufacturing method, are disclosed. The chemical composition of the steel, by mass percentage, is as follows: C: 0.04%–0.1%, Si: 0.2%–0.5%, Mn: 1.2%–1.8%, P≤0.02%, S≤0.01%, Al: 0.02%–0.05%, Cr≤0.5%, Nb≤0.02%, N≤0.006%, with the balance being Fe and unavoidable impurities. The content of Si, Mn, and Cr satisfies the condition: (Mn+Cr)−2×Si≥0.5%. This method, through optimized composition design and precise control of the annealing-galvanizing process, synergistically solves the core contradiction of achieving high strength, high formability, and high surface quality in high-strength outer sheets. In particular, it effectively inhibits surface oxidation of the substrate, ensuring the uniformity, density, and adhesion of the coating, and can stably produce high-quality outer sheet products suitable for pure zinc (GI) and zinc-aluminum-magnesium (ZM) coatings.