36 results about "Erosion surface" patented technology

The invention relates to a manufacturing method of a medium-high pressure chemical foil, and the manufacturing method comprises pretreatment on an aluminum foil which is subjected to erosion surface expansion and multilevel formation treatment. The pretreatment comprises the following steps of carrying out infiltration treatment on the aluminum foil which is subjected to erosion surface expansionin a wetting disperse liquid, wherein the wetting disperse liquid is a water solution of a non-ionic surface active agent of which the hydrophilic-lipophilic balance (HLB) value is at 11-15. The manufacturing method of the medium-high pressure chemical foil in the invention can be capable of generating a stable oxidation film, meanwhile, and reducing the loss brought by the follow formation on the formed specific area of the aluminum foil, thereby improving the electrostatic capacity and water-tolerant performance of the aluminum foil.

The invention discloses a preparation method of anti-corrosion wear-resistant iron-based amorphous coating for a boiler tube bundle. The method comprises the following steps: 1, a fog method is adopted to prepared iron-based amorphous alloy powder, wherein the iron-based amorphous alloy powder is prepared by mixing the following raw materials in percentage by weight: 0.05-2.0% of Mo, 1.0-20.0% of Cr, 12.0-20.0% of Ni, 6.0-12.0% of Si, 0-4.0% of Al, 4.8-10.5% of C, and the balance of Fe and unavoidable impurities; 2, a plasma spraying technology is adopted to spray the surface of the boiler bundle to prepare the anti-corrosion wear-resistant iron-based amorphous coating. The iron-based amorphous coating prepared by the method disclosed by the invention is excellent in corrosion resistance, wear resistance and high-temperature stability, can protect the thermal erosion surface of the boiler tube bundle well in the hot corrosion and washout concurrent environment, so as to effectively prolong the service life of the boiler tube bundle.

The invention relates to a recyclable sputtering target and a manufacturing method thereof. The method comprises the following steps that: a return target is provided and comprises a back side, a sputtering erosion surface and a periphery, and the sputtering erosion surface comprises at least a sputtering erosion surface groove; the back side of the return target is pre-machined; and raw material powder with the same components with the return target is covered on the sputtering erosion surface of the return target, in the sputtering erosion surface groove and on the periphery, pre-pressed and sintered to obtain the recyclable sputtering target. The invention can control the proportion of the return target in the recyclable sputtering target, so that the proportion of the components of the first target returning is gradually reduced, so as to replace the old with the new and to keep the recyclable target sputtering quality.

A target and backing plate assembly for magnetron sputtering includes a target, the distance between the erosion surface of the target and a magnet disposed at the rear surface of the target and that between the erosion surface and a surface of a substrate facing the target being fixed. The target has an uneven shape of which thickness is changed at a surface adjacent to a backing plate such that portions to be eroded by sputtering are thick. Conductive spacers are disposed between the backing plate and the target having the uneven shape at thin portions of the target. With this structure, a target of which lifetime and use efficiency are increased while film uniformity (uniformity of film thickness) is kept excellent throughout the sputtering life of the target can be provided. In addition, a method of manufacturing the target and a target backing plate can be provided.

The invention provides a method for determining a blast-furnace hearth bottom erosion envelope surface and relates to the technical field of blast-furnace hearth bottom erosion detection. The method has the advantages that a method based on unchanged grids and a dimensionality approaching method is used, different-dimensionality feature simplification is performed on blast-furnace hearth bottom models according to the rule hypothesis of steady-state heat transfer in blast-furnace simulation models, the needs of precision are considered, and the different-dimensionality simulation models are calculated; the highest temperature of detecting points is acquired according to hearth thermocouple monitoring data of different periods; precision increasing is converted into dimensionality expansionby using obtained hearth bottom inner boundary as the initial condition of high dimensionality; unit dimension differences are ignored during envelope surface regulation, the solving of the accurateposition of an erosion surface is not needed, an overall solution for solving a blast-furnace envelope surface is formed, the accuracy of blast-furnace erosion calculation measuring results is increased, calculation quantity is reduced at the same time, and the problems that erosion detection results are large in errors, and erosion detection is high in calculation quantity in the prior art are alleviated.

The present application includes a rotor blade having an erosion protective coating, the coating being a cermet material configured to protect against erosion during the operation of the rotor blade. Further, the present application includes a method of selectively applying the erosion protective coating, a method of selectively repairing / reapplying the erosion protective coating, and a process of developing an erosion surface model map of an optimized erosion protective coating pattern and thickness.

To provide an erosion characteristics database and a method for constructing the same, an erosion prediction method and an erosion prediction system using the database for predicting a widespread erosion amount of a fluid machine or the like in a short time without the need for an operation of a model machine or an actual machine.A method for predicting erosion of a fluid machine surface due to cavitation, the method including: calculating erosion intensity distribution in each area of the fluid machine surface from cavitation flow field characteristics obtained using cavitation CFD in a flow path formed by the fluid machine; determining radius distribution and center position distribution of a representative sphere and the number of shape deformations by the representative sphere for assuming an erosion surface having a porous surface property based on the erosion intensity distribution; determining a fluid machine surface to be predicted as an approximate erosion surface; and calculating a shape after deformation of the approximate erosion surface based on the radius distribution and the center position of the representative sphere and the number of shape deformations by the representative sphere.

This sputtering cathode has a sputtering target having a tubular shape in which the cross-sectional shape thereof has a pair of long side sections facing each other, and an erosion surface facing inward. Using the sputtering target, while moving a body to be film-formed, which has a film formation region having a narrower width than the long side sections of the sputtering target, parallel to one end face of the sputtering target and at a constant speed in a direction perpendicular to the long side sections above a space surrounded by the sputtering target, discharge is performed such that a plasma circulating along the inner surface of the sputtering target is generated, and the inner surface of the long side sections of the sputtering target is sputtered by ions in the plasma generated by a sputtering gas to perform film formation in the film formation region of the body to be film-formed.

Disclosed in the invention is a core-based method for recovering a deposition inclination angel of a foreset bed of a delta front. The method comprises the following steps: according to scales of geologic bodies where argillaceous flow barriers are located and stratum dimensions involved in study, the argillaceous flow barriers are divided into six levels from the first level to the sixth level in a descending order; different levels of erosion surfaces are identified from a core and an inclination angle is measured; an inclination relation between a forest bed and a stratum is determined and an inclination relation between the forest bed and a higher-level stratum is divided into two kinds: a same-direction kind and a reversed direction kind; an inclination angle of a stratum at a higher level is determined; a type of a drilling well and a track direction of the drilling well are determined; according to well deviation data, a deviation angle between a well track and a vertical direction is determined; and on the basis of the well type, the construction inclination, and a relationship between a foreset bed inclination and a drilling well track direction, an inclination angle of the forest bed in primary deposit is calculated. Using the method, the inclination angle of the foreset bed in primary deposit can be obtained accurately; stratum comparison can be guided effectively; and the method plays an important role in development scheme formulation and recovery efficiency improvement.

The invention relates to a ceramic decorative detached brick with natural water erosion surface, comprising an adobe made of same or different colored blanks, the brick surface is water erosion surface, namely a plurality of rugged pits or cambered surfaces or natural round pitting surfaces different depth generated due to water immersion and erosion are arranged on the surface of the brick. Compared with the prior detached brick, the production method is characterized in that the water erosion and flushing process are added between the drying process and the calcination process, the drying process is as follow: immersing the dry adobe surface of detached brick under water 1 to 3mm for 1 to 10 minutes, when the immersed part fully softened, washing the brick surface with fresh water, thus a plurality of rugged pits or cambered surfaces or water erosion surfaces with the depth of 0.1 to 3mm are formed on the brick surface, then calcining the adobe after drying. The surface of the brick produced with the method has smooth rugged pits which are similar to the stone surface eroded or flushed by water, and appears the unique artistic effect; furthermore, the brick surface has no scratch; the appearance is beautiful, and the brick body is higher in strength and more corrosion resistant.

The invention discloses a preparation method of a corrosion-resistant and wear-resistant molybdenum-based amorphous coating for a boiler tube bundle. The method comprises the following steps: firstly, preparing molybdenum-based amorphous alloy powder by adopting an aerosol method, wherein the molybdenum-based amorphous alloy powder is formed by mixing the following raw materials in percentage by mass: 7.0-11.0% of Fe, 11.0-20.0% of Cr, 1.0-10.0% of Ni, 6.0-9.0% of Si, 0.5-2.0% of Al, 2.6-8.0% of C, 0.5-5.5% of W, 0-2% of Y and the balance of Mo and unavoidable impurities; secondly, preparing and obtaining the corrosion-resistant and wear-resistant molybdenum-based amorphous coating on the surface of the boiler tube bundle by adopting a plasma spraying technology. The molybdenum-based amorphous coating prepared by the invention has excellent corrosion resistance, wear resistance and high-temperature stability, and can protect the heat erosion surface of the boiler tube bundle better in an environment with the combined effect of heat corrosion and erosion, so that the service life of the boiler tube bundle is effectively prolonged.

The present application includes a rotor blade having an erosion protective coating, the coating being a cermet material configured to protect against erosion during the operation of the rotor blade. Further, the present application includes a method of selectively applying the erosion protective coating, a method of selectively repairing / reapplying the erosion protective coating, and a process of developing an erosion surface model map of an optimized erosion protective coating pattern and thickness.

The invention discloses a preparing method for a medium-chromium-based ferritic stainless steel low power structure, and belongs to the technical field of medium-chromium-based ferritic stainless steel structure preparing. An erosion agent comprises, by volume, 10-80 parts of ethyl alcohol, 20-90 parts of nitric acid, 50-100 parts of hydrochloric acid and 50-200 parts of distilled water. The preparing method for the low power structure comprises the steps that firstly, the ethyl alcohol, the hydrochloric acid, the nitric acid and the distilled water are evenly mixed, and the erosion agent is prepared; then, an eroded stainless steel sample is cut and polished, and an erosion surface is obtained; after erosion is finished, the steel sample is placed in an alkaline solution to be cleaned, and acid removing treatment is conducted; and finally, the steel sample is placed in the ethyl alcohol solution to be cleaned, the steel sample is blown dry after cleaning, the erosion face is scanned through a scanner, and a picture of a low-power condensation structure is prepared. An effective method is provided for preparing and observing of the medium-chromium-based ferritic stainless steel low power structure, the prepared structure picture is clear and visible, and the quality of the steel sample is effectively represented.

The invention relates to an oil-gas subsea pipeline silt carrying capacity online monitoring device and method based on bridge balance. The device comprises a first branch pipe, a second branch pipe, an electric rotation device, a transmission shaft, a support shell, sensing elements, a constant-voltage power supply system, a data acquisition system, an one-chip microcomputer, and a computer. The pipeline is provided with a through hole, the support shell is vertically inserted into the pipe through the through hole; the first branch pipe is fixed on the through hole and is connected to the second branch pipe; the electric rotation device is fixedly arranged on the top of the second branch pipe, the output shaft of the electric rotation device is fixedly connected to the top of the support shell through the transmission shaft; four lateral surfaces of the support shell are four erosion surfaces, a sensing element is fixed on each erosion surface; four sensing elements form a balance bridge; the voltage-constant power supply system supplies power to the balance bridge under a constant voltage (U) through the data acquisition system, the data acquisition system is used to collect the balance bridge output signal u(t) and send the signal u(t) to the one-chip microcomputer and computer in real time; and finally the computer can obtain the amount of sand discharged from the subsea pipeline according to the change of the signal u(t).

The invention provides a paste for a light receiving surface electrode of a solar cell, wherein the paste can form an electrode that has high binding strength with a substrate and low contact resistance and furthermore high output can be obtained on condition that an LDE substrate is used, and a manufacturing method of the paste, and a solar cell unit with high output. The conductive paste for forming the light receiving surface electrode comprises leadless tellurite glass with various compositions. Various lead-containing additives and an additive with high-melting-point metal are mixed in the paste. Preferably the lead is carried in appropriate methods of false firing, chemical method, mechanical method, etc. Therefore if the electrode of the light receiving surface is formed through a fire-through manner, an erosion surface which appropriately has recesses and projections can be obtained. Therefore a requirement for a high electric characteristic and high binding strength can be satisfied. Furthermore, because the light receiving surface electrode (28) contains high-melting-point metals and lead, recombination is suppressed. Therefore high output can be obtained even the LDE substrate is equipped.

The invention relates to a slide slope soil erosion modulus measurement method for a waste dump of mine. The method is characterized by comprising the following steps: firstly measuring an erosion surface area of a to-be-measured side slope; constructing a measurement groove at the lower side of. The to-be-measured side slope, laying a thin film in the inner surface of the groove to reserve the side slope loss soil; collecting the loss soil at fixe time, and measuring the loss soil weight; and finally computing the soil erosion modulus by using the measured erosion surface area and the loss soil weight. A large amount of unnecessary monitoring loops and computation processes are reduced, and the method is suitable for the small-range side slope soil erosion modulus measurement under the stranger environment. The method has the characteristics of being simple in process, easy to implement, extensive in raw material source, cheap in price, low in cost, fast and accurate, and can be promoted and applied to the measurement of other varieties of side slope soil modulus.

The invention relates to an oil-gas subsea pipeline silt carrying capacity online monitoring device and method based on bridge balance. The device comprises a first branch pipe, a second branch pipe, an electric rotation device, a transmission shaft, a support shell, sensing elements, a constant-voltage power supply system, a data acquisition system, an one-chip microcomputer, and a computer. The pipeline is provided with a through hole, the support shell is vertically inserted into the pipe through the through hole; the first branch pipe is fixed on the through hole and is connected to the second branch pipe; the electric rotation device is fixedly arranged on the top of the second branch pipe, the output shaft of the electric rotation device is fixedly connected to the top of the support shell through the transmission shaft; four lateral surfaces of the support shell are four erosion surfaces, a sensing element is fixed on each erosion surface; four sensing elements form a balance bridge; the voltage-constant power supply system supplies power to the balance bridge under a constant voltage (U) through the data acquisition system, the data acquisition system is used to collect the balance bridge output signal u(t) and send the signal u(t) to the one-chip microcomputer and computer in real time; and finally the computer can obtain the amount of sand discharged from the subsea pipeline according to the change of the signal u(t).

The invention discloses a soil erosion surface form DEM construction and observation method and device in a rainfall process, and the method comprises the steps: processing a gray value pixel by pixelthrough employing a K-means algorithm, reconstructing a pixel value after rain and fog removal from a plurality of pixel values, and improving the rain and fog removal accuracy and efficiency of an image. The underlying surface form can be observed in the continuous rainfall process, and the soil erosion occurrence and development process is digitally and graphically expressed. More importantly,the underlying surface form is described from two dimensions of time and space at the same time, and a powerful means is provided for scientific research of the soil erosion process and mechanism.

The invention discloses a preparation method of a corrosion-resistant and wear-resistant molybdenum-based amorphous coating for a boiler tube bundle. The method comprises the following steps: firstly, preparing molybdenum-based amorphous alloy powder by adopting an aerosol method, wherein the molybdenum-based amorphous alloy powder is formed by mixing the following raw materials in percentage by mass: 7.0-11.0% of Fe, 11.0-20.0% of Cr, 1.0-10.0% of Ni, 6.0-9.0% of Si, 0.5-2.0% of Al, 2.6-8.0% of C, 0.5-5.5% of W, 0-2% of Y and the balance of Mo and unavoidable impurities; secondly, preparing and obtaining the corrosion-resistant and wear-resistant molybdenum-based amorphous coating on the surface of the boiler tube bundle by adopting a plasma spraying technology. The molybdenum-based amorphous coating prepared by the invention has excellent corrosion resistance, wear resistance and high-temperature stability, and can protect the heat erosion surface of the boiler tube bundle better in an environment with the combined effect of heat corrosion and erosion, so that the service life of the boiler tube bundle is effectively prolonged.

The invention, which belongs to the technical field of oil exploration and development, relates to an identification method of a denudation plane valley oil reservoir. According to the method, a denudation plane seismic horizon and a reference seismic horizon are generated by tracking, the reference seismic horizon is used as a datum plane to execute flattening processing, the denudation plane seismic horizon is restored to an ancient landform state, and a valley position is determined; frequency spectrum decomposition data are extracted from a curved surface parallel to the denudation plane in a same-phase shaft range where the denudation plane is located and mixed displaying is carried out on energy at three different frequency bands; frequency ranges and energy weights of the three frequency bands are adjusted and a frequency combination graph fitting the drilled well oil reservoir situation is screened; and the frequency combination graph covers a three-dimensional visualized graph displayed at the denudation plane ancient landform and a possible oil reservoir region is identified in the valley. The provided method is simple and is easy to implement; and the identification rate of the oil reservoir can be effectively improved. The method is especially suitable for the landform whose stratum filling in the shallow valley is thin at the denudation plane.

The invention relates to a manufacturing method of a medium-high pressure chemical foil, and the manufacturing method comprises pretreatment on an aluminum foil which is subjected to erosion surface expansion and multilevel formation treatment. The pretreatment comprises the following steps of carrying out infiltration treatment on the aluminum foil which is subjected to erosion surface expansionin a wetting disperse liquid, wherein the wetting disperse liquid is a water solution of a non-ionic surface active agent of which the hydrophilic-lipophilic balance (HLB) value is at 11-15. The manufacturing method of the medium-high pressure chemical foil in the invention can be capable of generating a stable oxidation film, meanwhile, and reducing the loss brought by the follow formation on the formed specific area of the aluminum foil, thereby improving the electrostatic capacity and water-tolerant performance of the aluminum foil.

To provide an erosion characteristics database and a method for constructing the same, an erosion prediction method and an erosion prediction system using the database for predicting a widespread erosion amount of a fluid machine or the like in a short time without the need for an operation of a model machine or an actual machine.A method for predicting erosion of a fluid machine surface due to cavitation, the method including: calculating erosion intensity distribution in each area of the fluid machine surface from cavitation flow field characteristics obtained using cavitation CFD in a flow path formed by the fluid machine; determining radius distribution and center position distribution of a representative sphere and the number of shape deformations by the representative sphere for assuming an erosion surface having a porous surface property based on the erosion intensity distribution; determining a fluid machine surface to be predicted as an approximate erosion surface; and calculating a shape after deformation of the approximate erosion surface based on the radius distribution and the center position of the representative sphere and the number of shape deformations by the representative sphere.

The invention provides a numerical value measuring and calculating method for dam body collapse space-time evolution of a barrier dam. The method comprises the following steps that a barrier dam model is established by using physical parameters and geometric dimension parameters; an overflow model is established based on the characteristics that barrier dam collapse overflow is a simplified, one-dimensional, multi-phase and isothermal laminar flow water-soil mixture; the overflow model is simplified through depth integral hypothesis to obtain a multi-phase overflow model; dam body shearing force provided by overflow and the shear strength of a dam body are obtained, and whether erosion occurs or not is judged; and natural slope toes of all positions of the dam body and the internal friction angle of a critical soil body are measured and calculated based on time, and if the natural slope toe of the current position is larger than the internal friction angle of the critical soil body, the soil body of the current position enters the overflow. According to the method, measurement and calculation are carried out through the numerical value of the barrier dam model, the erosion surface change and the collapse opening space-time evolution caused by barrier dam collapse can be scientifically and accurately obtained, and the scientific level of debris flow and secondary disaster prevention and control of the debris flow and environmental protection is improved.

The invention discloses a karst ancient landform restoration method with hydrothermal cause siliceous rock as an isochronous datum plane. The karst ancient landform restoration method comprises the following steps: acquiring rock core, slice and logging information; stratigraphic division and comparison are carried out, and the hydrothermal cause siliceous rock bottom boundary is determined to serve as an isochronous reference plane; finely explaining an isochronous reference surface and a target layer erosion surface; calculating the residual stratum thickness between the isochronous reference surface and the target stratum erosion surface; and obtaining a karst ancient landform map according to the residual stratum thickness. According to the method, the principles that the reference surface is isochronous and close to the erosion surface and the earthquake response is clear and easy to track are fully considered, and the recovery precision of the ancient karst landform is greatly improved.

The invention discloses a bionic erosion-resisting pipeline elbow. Bionic ribs are evenly distributed on the erosion surface of the pipeline elbow, the spreading direction of each bionic rib is arranged in the flow direction, and the characteristic curve of the contact curve surface of each bionic rib and a flow field is a minor arc or a semicircle; alternatively, the spreading direction of each bionic rib perpendicular to the incoming flow direction, and the characteristic curve of the contact curve surface of each bionic rib and the flow field is two externally tangent arcs. The bionic rib structure of the bionic erosion-resisting pipeline elbow is the main position eroded by solid particles, the position is higher than the wall surface by a certain distance, and namely the thickness of the elbow is increased locally. The bionic ribs effectively control the near wall region flow field of a multiphase flow, so that the impact angle between the solid particles and the wall surface is controlled, and the wall surface of the pipeline elbow is effectively protected from the flow field control angle.

The invention discloses a manufacturing method for a high-frequency bulk acoustic wave delay line energy converter and a high-frequency bulk acoustic wave delay line. When the energy converter is manufactured, bottom electrode films are deposited on the two end faces of a sound bearing medium and photoetched through an upper electrode photoetching plate to form bottom electrode patterns; piezoelectric layer films are deposited on the bottom electrodes at the two ends; upper electrode films are deposited on the piezoelectric layer films at the two ends and photoetched through a bottom electrode photoetching plate to form upper electrode patterns. The aluminum nitride piezoelectric films do not need photoetching, the manufacturing technology is simplified, damage to the bottom electrode film patterns when aluminum nitride is etched is avoided, and influence on quality of follow-up processes by residues on the erosion surface of the aluminum nitride is avoided. The manufacturing technology for the high-frequency bulk acoustic wave delay line can be optimized, the manufacturing technology for the high-frequency bulk acoustic wave delay line energy converter can be simplified, the yield of technical manufacturing of devices can be increased, and product reliability can be improved.

The invention discloses an electric spark corrosion processing device, which comprises a workbench, a chip removal pipeline and a cleaning device. One end of the upper surface of the workbench is provided with a fixed telescopic plate, and the other end is provided with a movable telescopic plate. The fixed telescopic plate Squeeze plates are respectively provided on the inner upper part of the movable telescopic plate, and anti-corrosion plates are respectively provided on the inner lower part of the fixed telescopic plate and the movable telescopic plate. The inner wall of the pipeline is provided with an infrared detector and a cleaning device, and the cleaning device includes a cleaning blade and a micro motor, a suction motor is provided on the lower side of the chip removal pipeline, and a filter is provided at the bottom of the chip removal pipeline. The cleaning device can remove the residue very well, prevent the residue from adhering to the corrosion surface and affect the progress, and can fix molds of different thicknesses. It has many functions, is more convenient to use, and has high work efficiency.

The invention provides a sand body plane shape determining method and a system thereof. The sand body plane shape determining method comprises the steps of determining thickness of a growth layer segment of a construction type sedimentarystructure according to the thickness of trough cross bedding, the thickness of plate cross bedding, the thickness of an erosion surface and retention conglomerate, the thickness of a parallel layer, the thickness of water ripple cross bedding, the thickness of a first thin-layer mudstone and the thickness of a coal layer; determining the thickness of the growth layer segment of a reconstruction type sedimentarystructure according to the thickness of a flushing cross bedding, the thickness of water ripple cross bedding and the thickness of wavemark; obtaining the distribution frequency of the construction type sedimentary structure or the reconstruction type sedimentary structure according to the thickness of the growth layer segment of the constructiontype sedimentary structure and the thickness of the growth layer segment of the reconstruction type sedimentary structure; and determining the sand body plane shape according to the distribution frequency of the construction type sedimentary structure or the distribution frequency of the reconstruction type sedimentary structure. The method and the system have advantages of accurately determiningthe sand body plane shape, improving reservoir prediction precision, improving well drilling success rate and exploration success rate, and satisfying a requirement for high-efficiency exploration.