112 results about "Equipment requirement" patented technology

This invention provides a method for producing small-diameter, thick-walled near-α-type titanium alloy tubing and its application. This method, through the use of cladding and heated rolling, increases the deformation per rolling pass, reduces the number of rolling passes, and results in a finer microstructure and better mechanical properties in the heated-rolled tubing. Simultaneously, the composite material composed of the cladding layer and silica aerogel effectively prevents the alloy rod from contacting air, avoiding further surface oxidation and reducing the thickness of the oxide layer on the rod surface. Furthermore, the composite material forms a "thermal insulation layer" on the surface of the alloy rod, preventing large temperature differences between the surface and core during heated rolling, thus ensuring better microstructure uniformity and surface quality. In this invention, the cladding process expands the selection of heating furnaces and reduces equipment requirements.

The invention provides a dam filler compaction quality continuous detection method based on compaction vibration asymmetry, and the method comprises the steps: taking a vibration period as a unit, carrying out the segmentation and extraction of a filtered acceleration signal, and obtaining an acceleration signal of each vibration period, determining an acceleration signal point set A1 of the vibrating wheel above the balance position and an acceleration signal point set B1 of the vibrating wheel below the balance position; overturning the acceleration signal point set B1 to a positive value along the t axis, and translating to obtain an acceleration signal point set B2; and respectively fitting the acceleration signal point set A2 and the acceleration signal point set B2 by adopting a sine function, and calculating to obtain a compaction vibration asymmetry index CVAI. The method directly performs time domain analysis on the acceleration, has the advantages of high precision and simple equipment requirements, can effectively guarantee the dam filling quality and improve the dam filling efficiency, and can also be used for earth and stone filling engineering construction of roads, railways, airports and the like.

The invention discloses a corrosion method of an Al Si 10Mg alloy grain boundary, which mainly comprises the following steps of: 1, preparing a corrosion liquid which comprises the following components: 150mL of NaOH, 8-10g of NaOH and 3-5g of NaOH; 2, embedding an Al Si 10Mg sample; thirdly, the embedded samples are sequentially polished with abrasive paper from 400 meshes to 7000 meshes; 4, roughly polishing the ground sample; 5, smearing a surfactant on the sample subjected to rough polishing, and then carrying out fine polishing; 6, cleaning the polished sample with industrial alcohol; 7, heating the prepared corrosive liquid to 60-80 DEG C, and corroding the sample for 40-60 seconds; 8, cleaning the sample with industrial alcohol after corrosion patterns appear on the surface of the sample; and 9, carrying out drying treatment. After the method is used for corroding the Al Si 10Mg alloy, the crystal boundary of the alloy can be clearly observed, and the method is low in equipment requirement, simple in operation step, capable of saving cost, good in stability and suitable for researching the grain morphology, the grain size, the microstructure performance and the like of the Al S i 10Mg alloy.

The application belongs to the technical field of deep-sea lander, and discloses a design method and system of a deep-sea landing buffer based on a filled TPMS structure, which comprises the following steps: S1, designing and preparing a filled TPMS structure; S2, performing a quasi-static compression test on the filled TPMS structure; S3, performing a dynamic impact performance test on the filled TPMS structure; S4, selecting a filled TPMS structure meeting preset requirements based on the results of the quasi-static compression test and the dynamic impact performance test, and designing a buffer system of a deep-sea lander; and S5, optimizing the buffer system of the deep-sea lander according to different application scenarios and equipment requirements. The application further explores the possibility of filling a magnetic fluid into a TPMS structure and applies the novel filled TPMS structure to a deep-sea landing buffer, thereby providing an efficient buffer solution for deep-sea exploration equipment.

The invention discloses a method for preparing a reinforced epoxy resin composite material from a retired fan blade, and belongs to the technical field of recycling of composite materials. The method comprises the following steps: carrying out mechanical crushing and screening on the retired fan blade to obtain non-metal powder; preheating epoxy resin, sequentially adding the nonmetal powder, the defoaming agent and the coupling agent, stirring, and vacuumizing to obtain a mixed system a; adding a curing agent and titanium dioxide powder into the mixed system a, stirring and vacuumizing to obtain a mixed system b; and finally, pouring the mixed system b into a mold coated with a release agent, curing at normal temperature, and demolding to obtain the reinforced epoxy resin composite material. According to the invention, high-value utilization of components such as glass fibers in the retired wind power blade is realized; the process is simple, equipment requirements are low, and industrial popularization potential is achieved.

According to the anodic oxidation technology suitable for the 6061 aluminum alloy, multi-component silica sol is adopted for conducting room-temperature dipping hole sealing and low-temperature curing on a 6061 aluminum alloy anodic oxidation film, and technology energy consumption and equipment requirements are reduced. The dense silicon network seals the membrane holes, prolongs the diffusion path of a corrosive medium and prevents the corrosive medium from invading the substrate, thereby greatly improving the corrosion resistance of the membrane layer and inhibiting pitting corrosion.

The invention discloses an equipment maintenance equipment demand prediction method and system based on digital twinning, and relates to the technical field of equipment maintenance equipment demand prediction, and the method comprises the steps: collecting the historical data and state data of target equipment, and obtaining the actual operation state of each piece of single equipment and each replaceable unit; synchronizing the actual operation state of each single device and each replaceable unit to a preset digital twin model as an initial state of simulation; determining task environment data; establishing an equipment state characteristic space-time relation model; inputting the equipment state characteristic space-time relation model and the task environment data into a preset digital twinborn model, calculating a sensitivity coefficient at the current moment, and constructing an equipment use failure rate model based on the sensitivity coefficient at the current moment; determining a simulation moment unit fault condition corresponding to the equipment use plan; and carrying out statistics on maintenance equipment requirements of the target equipment. According to the invention, the technical problem of large difference between the simulation result and the reality in the traditional equipment maintenance equipment demand prediction simulation is solved.

The invention relates to the technical field of magnesium alloy materials, in particular to a low-cost flame-retardant magnesium alloy and a low-requirement preparation method thereof, and the low-cost flame-retardant magnesium alloy comprises the following raw materials in parts by weight: 7.0-7.2 wt.% of Al, 0.9-1.2 wt.% of Zn, 0.3-0.5 wt.% of Ca, 0.2-0.3 wt.% of Sr and the balance of Mg. The added rare earth element Sr can remarkably improve the flame retardant property of the alloy, the price is lower than that of rare earth elements such as Y added in current mainstream flame retardant alloy, the homogenization process requirement is lower, the alloy preparation cost is greatly reduced by cooperating with the smelting system, and the requirement for equipment is high under an existing flame retardant magnesium alloy smelting system, so that the cost is low. The smelting conditions are harsh, the smelting conditions and system greatly reduce the requirements of flame-retardant magnesium alloy smelting for devices and personnel, the magnesium alloy technology can be better popularized, and the method has great significance in practical application.

The invention discloses a composite lubricating sleeve with a pile sinking soil plug reducing effect. The device comprises a flexible substrate and a microstructure anti-drag layer which are compounded together, the outer circumferential face of the flexible base is attached to the inner circumferential face, close to a pile shoe, of a prefabricated pipe pile, and solid lubricating particles are evenly mixed in the flexible base. The microstructure resistance reduction layer is composed of a plurality of micro convex points which are regularly distributed on the inner circumferential face of the flexible substrate in a dot matrix shape, and solid lubricating particles are packaged in the micro convex points. According to the method, the pile sinking construction difficulty and equipment requirements can be effectively reduced, pile body deviation and equipment energy consumption caused by too large resistance are reduced, and the construction cost is directly saved. The core innovation of the method lies in that the blocking forming process is actively intervened through a multiple cooperation mechanism of solid particle lubrication, micro-convex-point blocking and micro-rolling, the controllability of the pile sinking process and the perpendicularity of a pile body are greatly improved, and the pile sinking quality is improved from the source. The composite lubricating sleeve is unique in technical path, and the technical span from passive treatment to active prevention and control is achieved.

The invention discloses a machining device and method for an annular eccentric spigot part. The machining device comprises a bottom plate, a pin is arranged in the middle of the bottom plate, the annular eccentric spigot part is arranged on the bottom plate, and the annular eccentric spigot part is connected and fastened to the bottom plate through screws. The machining device is used for positioning and aligning to machine phi D1 and phi D2 so as to guarantee the dimensional precision of the phi D1 and phi D2 and the dimensional precision of the eccentric distance L between the centers of the phi D1 and phi D2 and the center of phi D. The machining device has the advantages that the requirement for machining equipment is not high, small and medium-sized machining factories have the equipment capacity, and the machining device can be used in cooperation with existing equipment for machining. And meanwhile, the machining efficiency is high, the machining cost is low, the requirement for equipment operation skills is not high, the machining quality is easy to guarantee, and meanwhile a thought for solving problems is provided for machining of similar parts.

The utility model relates to the technical field of pipe pile hoisting, in particular to a hoisting beam for turning over a steel pipe pile, and aims to solve the problem that the requirement for hoisting pipe pile turning-over equipment is high, the hoisting beam comprises a hoisting beam body arranged above the steel pipe pile, and two lower steel wire rope rings are arranged at the bottom of the hoisting beam body; lifting lugs used for being matched with a lower steel wire rope ring are arranged on the two sides of the steel pipe pile correspondingly, a tail steel wire rope ring is arranged on one side of the lifting beam body, a C-shaped tail slipping clamp used for being in butt joint with the tail of the steel pipe pile is arranged on the tail steel wire rope ring, and a winding and unwinding mechanism used for winding and unwinding the tail steel wire rope ring is arranged on the lifting beam body. And a hoisting mechanism matched with a crane is arranged at the top of the hoisting beam body. The overturning device has the advantages that efficient overturning operation on the steel pipe pile is achieved, the overturning process is simplified, the operation efficiency is improved, and the equipment requirement and the construction cost are reduced.

The utility model relates to the technical field of slope net pressing and buckling, and discloses an automatic slope net pressing and buckling mechanism which comprises a cross beam frame mechanism, the top of the cross beam frame mechanism is fixedly connected with an air storage tank and a pressure gauge, the side wall of the cross beam frame mechanism is fixedly connected with a metal plate protective cover, and the interior of the metal plate protective cover is fixedly connected with a lead screw deviation mechanism. The side wall of the cross beam frame mechanism is fixedly connected with a plurality of pressing buckle feeding mechanisms, the side wall of the cross beam frame mechanism is fixedly connected with a plurality of pressing cover feeding mechanisms, the side wall of the cross beam frame mechanism is fixedly connected with a plurality of press fitting mechanisms, and a pressing buckle feeding square pipe is fixedly connected into each pressing buckle feeding mechanism. According to the automatic press-fitting machine, through cooperative work of key structures such as the cross beam frame mechanism, the pressing buckle feeding mechanism and the pressing cover feeding mechanism, automatic operation is achieved, the production efficiency is greatly improved, flexible adjustment can be conducted according to the requirements of different products, and various press-fitting requirements are met.

A method for preparing a NiAl / Ni3Al gradient structure special-shaped shell part by integrating in-situ reaction and gas pressure forming belongs to the technical field of forming of special-shaped plate shell parts for aerospace. The method aims to solve the problems of long cycle, complex process, high equipment requirement, many hollow defects and high cost of the existing forming method of NiAl-based alloy laminated shell parts, and solve the problem of low high-temperature strength of the existing single-phase NiAl intermetallic compound. The method comprises the following steps: I. stacking Ni foils and Al foils alternately in a forming lower die to obtain a laminated structure; II. closing and sealing a forming upper die and the forming lower die, and filling inert gas through a central air hole of the forming lower die; III. first-stage reaction; IV. gas pressure forming; and V. second-stage reaction. The method is used for preparing a NiAl / Ni3Al gradient structure special-shaped shell part.

The utility model discloses a portable physical examination box for entry and exit personnel, which comprises a box body, an inner container structure is arranged in the box body, the inner container structure comprises an accommodating groove arranged on the surface of the inner container structure, two ends of the inner container structure are fixedly provided with limiting blocks, and the end parts of the limiting blocks are fixedly provided with handles. Positioning seats are fixedly arranged on the two side walls of the inner container structure, limiting openings are formed in the inner wall of the box body, positioning rails are fixedly installed on the surface of the inner wall of the box body, a first hidden seat and a second hidden seat are installed in the front of the inner container structure, and a third hidden seat is installed in the rear of the inner container structure. According to the portable physical examination box for the entry and exit personnel, the inner container structures are taken out from the interior of the box body, so that the inner container structures with different structures can be conveniently mounted in the box body, and the layout of the interior of the inner container can be flexibly changed according to different physical examination tasks and equipment requirements.

The utility model discloses an electronic product waterproof test structure which comprises a base, a water storage tank is fixedly installed at the upper end of the base, a controller is fixedly installed in the middle of the front end of the water storage tank, a first fixing frame is fixedly installed on the upper portion of the right end of the water storage tank, and an underwater test device is fixedly installed at the upper end of the first fixing frame. A second fixing frame is fixedly installed on the upper portion of the left end of the water storage tank, a spraying testing device is fixedly installed at the right end of the second fixing frame, and a supporting device is installed on the left portion of the upper end of the water storage tank in a penetrating mode. According to the device, an underwater instrument is placed in the first test box, so that the underwater instrument can go deep into the water storage tank for soaking test, water in the water storage tank is pumped by the water pump through the water pumping pipe and is conveyed into the plurality of nozzles at the lower end of the connecting seat through the water conveying pipe, and the nozzles spray the water on the outer surface of light waterproof equipment at the moment; and a spraying test is carried out, so that the device can carry out a corresponding waterproof test according to equipment requirements.

The utility model discloses an auxiliary supporting device for a power part of a reversed loader, and relates to the technical field of coal mining equipment. Comprising a mounting plate, a pressure detection mechanism is fixedly mounted on the lower surface of the mounting plate, first electric control hydraulic jacks are mounted at the front and rear positions, close to the right side, of the lower surface of the pressure detection mechanism through first hinge pieces, and a bottom plate is mounted between the lower surfaces of the first electric control hydraulic jacks through second hinge pieces; a driving mechanism is arranged between the first electric control hydraulic jacks, the driving mechanism is installed at the position, close to the left side, of the lower surface of the pressure detection mechanism, and angle detection mechanisms are arranged on the first electric control hydraulic jacks; the supporting function of the power part of the reversed loader is increased, the stability of the power part of the reversed loader is improved, the equipment failure rate is reduced, flexible adjustment can be conducted according to different working environments and equipment requirements, pressure generated during equipment operation can be effectively dispersed, the service life of equipment is prolonged, supporting is stable, and the effect is better.

The invention belongs to the technical field of gasification furnace waste boiler and water-cooled wall outer wall coating surfacing and laser cladding, and particularly relates to gasification furnace waste boiler and water-cooled wall outer wall coating surfacing and laser cladding equipment which comprises two flexible rails, a laser cladding device and a laser cladding device, and the two flexible rails both surround a tank body in the circumferential direction and are attached to the outer side wall of the tank body; the two circumferential movement modules are in sliding fit with the two flexible rails correspondingly; the lifting motion module is arranged on the circumferential motion module; the tangential movement module is arranged at the action end of the lifting movement module; the radial motion module is arranged at the action end of the tangential motion module; the rotating module is arranged at the action end of the radial movement module; and the working head is arranged on the rotating module. In the working process, rotation of the tank body is not needed, the energy consumption and equipment requirements are low, the size is small, disassembly and assembly are convenient, the device is suitable for multi-size tank bodies, the automation level is high, positioning is accurate, the quality of welding seams or cladding layers is effectively improved, and the working efficiency is remarkably improved.

The invention provides a method for installing an arch rib in a double-limb large-angle inclined arch rib cable-stayed bridge, which comprises the following steps of: firstly, vertically rotating the lower arch rib to a vertical direction, then vertically rotating the upper arch rib to a design inclination angle of the upper arch rib, lifting the upper arch rib, then vertically rotating to a design inclination angle of the lower arch rib, and finally, installing the lower arch rib in the cable-stayed bridge. And then the upper arch rib is lowered to the designed position, finally, the upper arch rib and the lower arch rib are connected into a whole, and arch rib installation is completed. According to the invention, the scheme of one-to-two, low-position vertical rotation, integral lifting, respective inclination fixing, integral lowering and integral connection is adopted, so that the mounting difficulty is greatly reduced, and the mounting risk is greatly reduced; the low-position buckling tower is adopted, the lower arch rib and the upper arch rib vertically rotate at a low position, and the material input is small; according to the method, the requirement on equipment is greatly reduced; the height of the buckling tower is low, the buckling tower is hoisted by a floating crane in a large-section mode, the installation time needed by the buckling tower is shortened, the acceleration amount of the installation speed of the buckling tower determines the advance amount of installation completion of the arch rib, and the installation time of the double-limb large-angle inclined arch rib is greatly shortened.

The invention discloses a rolling composite low-cost anti-oxidation pretreatment method for a heterogeneous bimetal composite pipe, and belongs to the technical field of metal material composite machining. The method comprises the following steps: polishing, cleaning and drying a to-be-compounded surface of the bimetal composite pipe, and removing an oxide layer, oil stains and other impurity attachments on the to-be-compounded surface; the two metal composite pipes are sleeved together according to the structure that the metal with the large thermal expansion coefficient serves as an inner covering layer, and the metal with the small thermal expansion coefficient serves as an outer layer, and a combined pipe blank is formed; and the interference fitting temperature of the metal pipe to be compounded is determined through calculation, the combined pipe blank is placed in a heating furnace to be heated to the interference fitting temperature, heat preservation is conducted for a certain time, and interference fitting of the combined pipe blank is achieved. According to the method, the inner-layer metal pipe and the outer-layer metal pipe are tightly attached through heating, air is exhausted, and the problem that the interface of the combined pipe blank is oxidized is effectively avoided. The method is simple in process, low in equipment requirement, outstanding in cost advantage and suitable for anti-oxidation pretreatment of heterogeneous metal pipe industrial rolling composite production.

The present invention relates to the technical field of fuel injector seats, and discloses a fuel injector seat, a method for efficiently manufacturing the fuel injector seat, and a hydraulic fixture. The fuel injector seat includes a fuel injector seat main body and a fuel injector seat branch integrally formed with the fuel injector seat main body. The fuel injector seat main body is respectively provided with an upper surface, a curved surface, a cylindrical surface, and a lower surface. The fuel injector seat branch is provided with a circular through hole. The lower surface is provided with a first circular counterbore, the curved surface is provided with a second circular counterbore, the cylindrical surface is provided with a keyway, and several circular small holes are provided at the lower end of the cylindrical surface; the dimensional accuracy of the keyway and the connection hole on the fuel injector seat main body is high, which is easy to assemble and has no risk of oil leakage; on a four-axis machine tool, a special hydraulic fixture is used to realize the one-time continuous processing of the dimensions of the keyway and the second circular counterbore on the fuel injector seat main body, improving the production efficiency and reducing the equipment requirements; the number of production stations can be increased to realize the processing of multiple workpieces at one time, further improving the production efficiency.

A vertical shield tunneling system with circumferential multi-head cutting and its construction method are disclosed. This relates to the field of underground engineering. This method excavates only the soil and rock within the annular shaft wall, avoiding full-face excavation, and can temporarily or permanently retain the central soil. The equipment has a compact structure, low installed power, distributed power, and low carbon emissions, reducing energy consumption. It requires less excavation work, is safer and more efficient, reduces mud and slag discharge, and is environmentally friendly. The use of hollow segments reduces the weight of individual segments, lowers the requirements for hoisting equipment, and enhances the active anti-buoyancy resistance during segment sinking. Utilizing cutting edge box assemblies matched to the vertical shield, segments are assembled while excavating in an annular pattern, forming a point-matrix annular excavation, prefabricated box-shaped segment overall advancement, stable box wall support, and retention of central soil excavation mode. This significantly expands the breadth and depth of shaft construction, improves construction efficiency, and reduces construction costs. By changing the shape of the cutting edge box assembly, shaft excavation with circular, rectangular, and other cross-sectional shapes can be achieved.

The application discloses a kind of detection methods of the temperature resistance of filler for organic silicon sealant, belong to material detection technical field;Including determining the initial fineness value of filler sample, record as L0;Filler sample is baked at 150~180 ℃ condition 2~4 hours;Determine the fineness value of filler sample after baking, record as L1;If L1-L0≥5 μm, determine this filler sample after high temperature will have the phenomenon of return coarse, poor temperature resistance;If L1-L0<5 μm, then determine this filler sample temperature resistance is good;The method described in the application is simple, fast detection, low equipment requirement and accurate and reliable result;Solve the existing problems, such as operation complex, detection efficiency low and poor correlation with actual application of temperature resistance detection method of filler for organic silicon sealant.

According to the HBPOP packaging method based on the TMV technology, the technology difficulty is low, the equipment requirement degree is not high, the thickness of a final product can be reduced by about 50 microns, and therefore the thickness of an electronic product is reduced. The method is characterized in that the substrate and the adapter plate are connected through a wire bonding technology, and the LPDDR chip and the adapter plate are connected through a TMV technology.

The present application relates to a speed reducer and its production process. In the process, when rough machining the tooth profile of a cycloidal wheel semi-finished product, at least three inserts are vertically arranged on the tool holder. The cross-sectional area of the gap between the cutting profile of the multiple inserts and the wall of the tooth groove of the finished cycloidal wheel increases gradually from top to bottom. When the tool holder is driven to move up and down to insert the teeth, only one insert is in the working state. After completing at least one reciprocating stroke, the tool holder is driven down and the next insert located above is put into the working state. After the rough machining of the first tooth groove is completed, after the cycloidal wheel semi-finished product is rotated to a set indexing angle, a detection component arranged along the radial direction of the cycloidal wheel semi-finished product is arranged and embedded in the previously machined tooth groove to detect the positioning accuracy of the current tooth groove to be machined. The present application does not require cutting when machining the tooth groove, and has low equipment requirements. In addition, the detection mechanism can perform a pre-detection after each tooth groove is machined to ensure the positioning accuracy of each tooth groove and improve the quality of rough machining.

This invention discloses a core holder and experimental method for thermal stress fracturing experiments, comprising: an insulated pipe kit having a through cavity; a heating device at one end of the insulated pipe kit, and an insulation layer in the area outside the heating device; a first temperature sensor on the upper side of the area opposite the insulation layer, and a transparent glass-encased steel container on the lower side of the area opposite the insulation layer; a second temperature sensor on the heating device; a clamping device for clamping the insulated pipe kit; a piston kit disposed on the clamping device for introducing gas or liquid into the cavity of the insulated pipe kit; and a device for clamping the experimental core placed in the cavity of the insulated pipe kit. This experimental apparatus, in addition to thermal stress fracturing displacement experiments, can also meet the equipment requirements of conventional body experiments, exhibiting strong functionality.

The invention relates to the technical field of metal cutting, and discloses a rapid cutting type silicon wafer rough polishing slurry and a preparation method thereof, the rapid cutting type silicon wafer rough polishing slurry comprises the following raw materials by weight: 20-50 parts of a composite abrasive, 0.2-2 parts of a chelating agent, 0.05-0.8 part of a dispersant, 0.1-3 parts of a pH regulator, 0.01-1 part of a surfactant, and 40-80 parts of deionized water. The composite grinding material formed by the metal organic framework modified nano titanium dioxide and the anionic polymer-silica sol composite system is combined with the high activity of nano particles and the synergistic grinding effect of polymer-silica sol, so that scratches on the surface of a silicon wafer in the polishing process are effectively reduced, the surface roughness is reduced, and the polishing efficiency is remarkably improved. The preparation method disclosed by the invention is clear in operation steps, controllable in parameters, conventional in equipment requirement and easy to realize industrial production; by adjusting the raw material ratio and process parameters, the polishing solution can flexibly adapt to different types of silicon wafers and polishing process requirements, and has a wide application prospect.

The utility model relates to the technical field of lubricating devices, and discloses a backpack type portable intelligent lubricating device which comprises a back plate, two sliding grooves are formed in one side of the upper end of the back plate, lead screws are rotatably arranged in the two sliding grooves and extend out of the sliding grooves, and clamping blocks are arranged on the two sides of threads of the outer walls of the two lead screws in a sleeving mode. The ends, extending out of the sliding grooves, of the two lead screws are fixedly connected with driven gears, rotating rods are rotationally arranged in the back plate, one ends of the rotating rods extend out of the back plate, the ends, located in the back plate, of the two rotating rods are fixedly connected with driving gears, and a fixing plate is placed at the upper end of the back plate. According to the device, the oil tank can be quickly detached and replaced according to needs, so that different equipment requirements are met, convenience is brought to workers, lubricating oil can be evenly stirred, the stable viscosity of the lubricating oil can be kept under the high-temperature or low-temperature condition, meanwhile, the lubricating oil adhering to the side wall of the oil tank is cleaned, and the lubricating oil can be recycled. And the loss of lubricating oil is effectively reduced.

The invention relates to a method for predicting dynamic fracture behaviors and parameters of a quasi-brittle material based on an equivalent area, and aims to solve the technical problems that in the prior art, a dynamic fracture parameter test of quasi-brittle materials such as concrete is remarkable in size effect and complex in test process, and multiple groups of test pieces and special equipment are needed. According to the method, a technical means of taking an equivalent area Ae as a core design parameter is adopted, two groups of quantitative test pieces with a specific Ae value ratio are designed, a linear analysis model of a peak load and the equivalent area is established, the dynamic fracture toughness KIC and the tensile strength ft without a size effect are synchronously determined, and a fracture total curve with 95% reliability is constructed. The method has the technical effects that the real dynamic fracture parameters of the material can be accurately measured only by a small number of laboratory small-size test pieces, the size effect is effectively eliminated, the test process is remarkably simplified, the equipment requirement is reduced, and the reliable prediction of the fracture behaviors of engineering structures with different geometric sizes is realized.

The present application discloses an equipment demand satisfaction evaluation method, which relates to the field of equipment evaluation. The method includes constructing an equipment effective application scenario set based on the actual execution tasks of the equipment; the equipment effective application scenario set includes multiple effective application scenarios; conducting effectiveness evaluation on each effective application scenario to determine an effectiveness evaluation table; based on the effectiveness evaluation table, evaluating the importance of different effective application scenarios to determine the scenario importance; constructing a key capability indicator set based on the equipment capability indicator system; for any effective application scenario, converting the key capability indicators in the key capability indicator set into the key capability indicator's demand satisfaction for the effective application scenario; determining the equipment comprehensive demand satisfaction based on the scenario importance and the demand satisfaction. The present application can obtain the equipment comprehensive demand satisfaction, and better provide a theoretical basis for equipment design.

The invention discloses a precise regulation and control method for AxB (1-x) alloy film components in magnetron sputtering, and belongs to the technical field of magnetron sputtering. The method comprises the following steps: (1) cutting two fan-shaped target blocks A with central angles of theta 1 and a circular target block B, wherein the radius of the target block A is the same as that of the circular target block B; (2) two fan-shaped target blocks A are placed on the surface of a circular target block B in a central symmetry mode, the central angle of each fan-shaped target block A coincides with the circle center of the circular target block B, and an assembly is obtained; (3) carrying out magnetron sputtering coating by taking the assembly as a target material to obtain an Ax1B (1-x1) alloy film; (4) performing component detection on the Ax1B (1-x1) alloy film to obtain the value of x1; and (5) calculating the central angle theta 2 of the fan-shaped A target block in the AxB (1-x) alloy film target material assembly according to a formula theta 2 = [180x * theta 1 (100-x1)] / [(100-x) x1 (180-theta 1) + x * theta 1 (100-x)] to obtain the central angle theta 2 of the fan-shaped A target block in the AxB (1-x) alloy film target material assembly. According to the invention, the relationship between the alloy components and the metal assembly structure is constructed, so that the requirements on equipment for preparing the alloy film are reduced, and the magnetron sputtering coating process is simplified.