1467 results about "Sand blasting" patented technology

The invention discloses an underground chamber structure of a compressed air energy storage power station, a construction method and a parameter optimization design method, and belongs to the field of compressed air energy storage and underground space engineering. A hard rock stratum building chamber is determined through systematic site selection investigation, a high-performance concrete lining (containing fiber reinforcement) and a polyurethane buffer layer are adopted to synergistically improve the stability, and a vinyl ester resin-based glass fiber reinforced plastic three-layer composite structure serves as a sealing layer (including a bonding layer, a reinforcement layer and an impermeable layer); the processes of sand blasting pretreatment, stepped joint and the like are combined to guarantee the sealing performance; meanwhile, on the basis of a finite element model, structural parameters are optimized by taking the lowest whole life cycle cost as a target and taking strength, deformation, leakage rate and the like as constraints, and a recommended parameter combination of each structural layer is obtained in combination with an orthogonal experimental design and an improved genetic algorithm. The method is suitable for various geological conditions, the safety, economical efficiency and adaptability of the compressed air energy storage power station are effectively improved, and the method is suitable for large-scale application and popularization.

The invention discloses a high-strength wear-resistant self-lubricating drill bit for a coal mine and a preparation method of the high-strength wear-resistant self-lubricating drill bit. The preparation process comprises the steps that a drill bit blank is prepared from low-alloy carbon structural steel, a high-strength and high-toughness matrix is obtained through thermal refining, and then sand blasting activation is conducted to clean and coarsen the surface. After diamond particles are subjected to acid pickling pretreatment, metal modified diamond composite powder is obtained through salt bath metal and reduction prefabrication. The preparation method comprises the following steps: mixing MoS2 with the carbon dioxide, spraying the mixture on the surface of a matrix through high velocity oxy-fuel to form a wear-resistant coating, and then improving the density and interface bonding strength of the coating through high-frequency induction instantaneous remelting, thereby finally obtaining the coal mine drill bit with high hardness, strong bonding force and self-lubricating performance. The metal modified diamond composite coating containing the metal transition layer and the MoS2 lubricating phase is constructed on the steel substrate, and a high-frequency remelting process is combined, so that the wear resistance, the bonding strength and the self-lubricating performance of the drill bit are synergistically improved, and the drill bit has the advantages of high strength and toughness matching and low cost.

The invention relates to the technical field of surface engineering, discloses a method and a system for preparing a yttrium fluoride composite ceramic coating through atmospheric plasma spraying, and aims to solve the problems that the yttrium fluoride coating generates a brittle aluminum fluoride layer on the surface of an aluminum substrate due to fluorine ion diffusion, so that the bonding strength is low, and the yttrium fluoride coating is easy to peel off and lose efficacy. The method comprises the following steps: sequentially carrying out mechanical polishing, ultrasonic cleaning and sand blasting roughening on an aluminum base material; preparing composite powder formed by mixing yttrium fluoride, yttrium oxide and nanometer aluminum oxide according to the mass ratio of 75: 20: 5; sequentially depositing a yttrium oxide transition layer, a composite barrier layer and a yttrium fluoride functional layer by adopting atmospheric plasma spraying; and finally carrying out vacuum post-heat treatment. According to the system, through the synergistic effect of the three layers of gradient structures, the transition layer forms an yttrium aluminate metallurgical bonding interface, the barrier layer inhibits fluorine ion diffusion through the dual mechanisms of nanometer aluminum oxide physical barrier and yttrium oxide chemical adsorption, and the functional layer guarantees the plasma erosion resistance. According to the method, the bonding strength of the coating is remarkably improved to 50 MPa or above, the porosity is lower than 3%, stripping is avoided under 500-hour high-energy plasma bombardment, the process cost is reduced by 40%, and the method is suitable for cavity protection of semiconductor etching equipment.

The invention discloses a preparation process of a sintering kiln silicon carbide guide roller with thermal shock resistance and high-temperature corrosion resistance. The process comprises the following steps: sequentially carrying out surface pretreatment such as reticulate pattern laser engraving, sand blasting and cleaning and drying on a silicon carbide guide roller substrate; performing plasma spraying on a pure aluminum oxide coating after preheating; carrying out segmented laser remelting on the coating to improve the compactness; and finally, coating the nano silicon carbide slurry, calcining and curing. The thermal shock resistance and the high-temperature corrosion resistance of the guide roller are remarkably improved by enhancing the binding force of the coating through laser engraving, optimizing the density of the coating through laser remelting and combining post-treatment of nano silicon carbide slurry, and the service life of the guide roller in a lithium battery positive electrode material sintering kiln is prolonged.

The invention relates to the technical field of oil and gas well completion sand prevention, in particular to a sand blasting perforation and sand prevention integrated combined operation device and a construction method. According to the technical scheme, a central pipe is installed in the center of an inner cavity of a jet pump assembly, the lower end of the central pipe extends out of the jet pump assembly, a liquid suction opening is formed in the lower middle portion of the jet pump assembly, a liquid outlet is formed in the outer wall of an upper connector, and a mixing cavity and a diffusion cavity are formed between the jet pump assembly above the liquid suction opening and the central pipe. An outlet of the diffusion cavity is communicated with the liquid outlet; the inner side of the central pipe is movably connected with a lower sliding sleeve; a nozzle is mounted on the jet pump assembly outside the lower flow transfer hole; and the inner side of the upper flow transfer hole of the central pipe is movably connected with a middle sliding sleeve. The method has the beneficial effects that the three processes of sand blasting perforation, blockage removal after perforation and ground filling sand prevention are completed by tripping in the tubular column once, so that the times of tripping the tubular column and using ground construction equipment are reduced, the construction efficiency is improved, the construction cost is saved, and the well control risk in the construction process is reduced.

The invention provides a detection, grinding and sand blasting integrated platform for a small complex workpiece. The detection, grinding and sand blasting integrated platform comprises a platform body, a grabbing robot is installed on the table body, and a feeding conveying line, a first visual detection mechanism, a grinding station and a sand blasting station are arranged on the periphery of the grabbing robot. A second visual inspection mechanism is arranged on one side of the polishing station; the grinding station comprises a movable seat used for carrying workpieces, and the movable seat is connected with a translation mechanism. A cleaning assembly is slidably mounted in the polishing station, the cleaning assembly is connected with a locking mechanism, a supporting frame is fixed to the movable seat, and a connecting mechanism is mounted on the supporting frame and used for being connected with the locking mechanism; an unlocking part is arranged on the connecting mechanism; the cleaning assembly is connected with a reset part. The equipment integrates the functions of detection, grinding and sand blasting, one-stop machining of workpieces is achieved, and manual circulation among multiple pieces of equipment is not needed. And meanwhile, based on a visual detection result, self-adaptive polishing path planning is carried out, and a polishing track can be dynamically generated according to the defect type and position.

The utility model relates to an intelligent cleaning device for a sand box, and belongs to the field of industrial automation and intelligent manufacturing. According to the scheme, the rail type RGV is adopted to automatically convey the sand box to the closed intelligent cleaning work station, and the information of the sand box is read through the RFID tag and synchronized to the information system. The cleaning robot scans the position of the sand box through the visual recognition device, and the tool changing robot grabs the adaptive drill bit from the drill bit tool library according to a system instruction and assembles the adaptive drill bit to the electric hammer chuck. And the cleaning robot drills and dredges the sand guide hole of the sand box, returns to the quick change frame to replace the electric pick, and performs multi-angle shoveling and scraping operation on the cavity of the sand box. And after cleaning is completed, the cleaning robot is switched to the sand blasting gun, and fine sand cleaning on the surface of the sand box is completed. The scheme aims at solving the problems that traditional manual cleaning is low in efficiency, severe in environment and large in potential safety hazard.

The utility model discloses a turntable type sand blasting device for cleaning the outer surface of a workpiece, which relates to the technical field of sand blasting devices and is characterized by comprising a sand blasting box, the outer wall of the sand blasting box is fixedly connected with a plurality of supporting blocks through supporting columns, two guide rails are fixedly mounted in the sand blasting box, and the two guide rails are fixedly connected with the sand blasting box. According to the utility model, through the arrangement of the components such as the guide rails, the electric trolley and the rotating disc, the trolley can walk and rotate, so that the position and the direction of a workpiece can be flexibly adjusted, the working efficiency is improved, the working efficiency is improved, and the working efficiency is improved. According to the sand blasting device, the rotating disc is arranged on the connecting shaft, so that the possibility that the workpiece collides with surrounding equipment and facilities is reduced, and in the sand blasting process, the rotating disc can be manually rotated around the connecting shaft through the lower hand hole according to the shape of the workpiece and the part needing to be cleaned, so that all surfaces of the workpiece can be uniformly subjected to sand blasting treatment, and the cleaning effect and comprehensiveness are greatly improved.

The embodiment of the invention provides a sand blasting method and equipment for a non-standard metal sheet and a storage medium, and the method comprises the steps that information of the metal sheet on a placing mechanism is acquired, and the information of the metal sheet represents pose information and surface information of the non-standard metal sheet; the sand blasting surface is divided into M sand blasting areas based on the surface information, the vertical distances from different sand blasting areas to a sand blasting mechanism are different, different sand blasting areas have different sand blasting priorities, and the sand blasting priorities are in positive correlation with the vertical distances; acquiring area shape information of the M sand blasting areas; and according to the pose information, the area shape information and the sand blasting priority, a sand blasting mechanism is sequentially controlled to conduct sand blasting on the M sand blasting areas, and then the target metal sheet is obtained. And sand blasting can be sequentially carried out on different sand blasting areas according to the sand blasting priority, the situation of excessive sand blasting or insufficient sand blasting is reduced, and the sand blasting quality of the non-standard metal sheet is high.

The invention relates to the technical field of material surface corrosion prevention, in particular to a spraying method for a heavy anti-corrosion coating of a port steel structure. The method comprises the following steps that (1) sand blasting derusting treatment is conducted on a steel structure base body, so that the cleanliness of the steel structure base body reaches the Sa2.5 level, and the roughness is controlled to range from 40 micrometers to 75 micrometers; 2) coating the treated substrate with epoxy zinc-rich primer, and doping graphene modified zinc powder accounting for 1-3% of the total mass of the primer to form a primer layer with a dry film thickness of 60-80 [mu] m; (3) after the primer layer is cured, the primer layer is coated with epoxy micaceous iron oxide intermediate paint, aluminum tripolyphosphate accounting for 2-5% of the total mass of the intermediate paint is further added into the epoxy micaceous iron oxide intermediate paint, and an intermediate paint layer with the dry film thickness being 150-200 microns is formed; 4, the middle paint layer is coated with weather-resistant finish paint, and a finish paint layer with the dry film thickness being 60-80 microns is obtained.According to the method, the adhesive force, chloride ion permeation resistance, salt fog resistance (larger than or equal to 3000 hours) and weather resistance of the coating are remarkably improved, the method is suitable for the harsh marine environment, and the service life of the steel structure can be prolonged to 20 years or above.

The invention discloses ceramic containing an air cooling structure and a preparation method and application thereof. The method comprises the following steps: uniformly mixing a sintering aid and ceramic powder, embedding the mixture into a template for pre-pressing molding, sintering at high temperature, and removing the template by adopting a high-temperature oxidation method (800-1000 DEG C, 1-3 hours) combined with a sand blasting auxiliary method (the sand blasting pressure is 0.2-0.8 MPa, and the sand blasting time is 1-5 minutes) to form a through air cooling channel; for ceramic powder easy to react with the template, spraying a boron nitride coating of 5-20 microns on the surface of the template to prevent interface reaction; various sintering modes (such as air pressure sintering and spark plasma sintering) and template shapes (such as a straight-through type and a spiral type) are supported, the structural controllability is good, channels are removed cleanly, and the process is simple; the obtained ceramic has excellent thermal management capability while maintaining high density and mechanical properties, and is suitable for high thermal load environments such as hot end parts of aerospace engines and the like.

The invention discloses a gradient coating preparation method combined with a gas phase aluminizing process, and relates to the technical field of thermal spraying, and the gradient coating preparation method comprises the following technological processes: S1, carrying out sand blasting treatment on a common gas turbine hot part material GH3536, and then carrying out transferred arc activation treatment on the sand-blasted surface by using vacuum plasma equipment; s2, Ni < 23 > Co < 20 > Cr < 12 > Al < 4 > Ta < 0.6 > Y powder is sprayed; s3, spraying of Ni < 23 > Co < 20 > Cr < 10 > Al < 0.6 > Y powder is conducted; s4, spraying of Ni20Cr10Al powder is carried out; s5, Ni5Al powder is sprayed; s6, a beta-NiAl layer containing an Al2O3 protective film is prepared on the surface of the coating and the surface of the part through the gas phase aluminizing technology; gradient coatings with different components are prepared through atmospheric plasma spraying, and finally a beta-NiAl layer containing an Al2O3 protective film is formed on the surfaces of the gradient coatings through gas phase aluminizing.

The invention discloses a dental implant containing a bioactive surface and a preparation method of the dental implant, relates to the technical field of implants, and aims to improve the biological activity of the dental implant, perform multiple treatments on the surface of the dental implant, and form a microcosmic concave structure on the surface of the implant through sand blasting and laser etching to induce bone growth. Acid liquor and alkali liquor are used for treating the surface of the implant, active hydroxyl is introduced to the surface of the implant, the surface hydrophilicity is improved, and the reaction activity of subsequent reaction steps is improved; then, polyether-ether-ketone with antibacterial performance and hydroxyapatite with biological activity are further introduced into the surface of the dental implant, so that the biological activity of the dental implant is effectively improved.

The invention provides a method for preparing a high-entropy alloy coating through an atmosphere plasma spraying and laser remelting composite technology, and belongs to the technical field of surface engineering. The method comprises the following steps that firstly, AlCoCrFeNi high-entropy alloy spraying powder is prepared through a vacuum gas atomization method; then, the surface of the base body is subjected to sand blasting roughening and preheating treatment; then, a high-entropy alloy spraying layer is prepared on the surface of the base body through atmospheric plasma spraying; and finally, the spraying layer is subjected to high-temperature rapid solidification through laser remelting treatment, and the composite coating which is compact in structure and high in bonding strength is formed. By optimizing spraying and remelting process parameters, the problems that a traditional plasma spraying coating is high in porosity and poor in binding force, cracks are likely to be generated in laser remelting and the like are effectively solved, the hardness, compactness and comprehensive performance of the coating are remarkably improved, and the coating is suitable for surface protection of parts under the harsh working conditions of high temperature, abrasion, corrosion and the like.

The embodiment of the utility model provides a swing arm sand blasting robot which is used for cleaning a wall surface and comprises a rack, a walking mechanism, a sand blasting assembly, an adsorption assembly and a second adjusting assembly. The sand blasting assembly is mounted on the rack and comprises a sand blasting gun and a recovery device communicating with the sand blasting gun, and a first adjusting assembly is arranged on the recovery device and used for adjusting the distance between the recovery device and the wall surface; the second adjusting assembly is installed on the adsorption assembly and used for adjusting the distance between the adsorption assembly and the wall face. Thus, the first adjusting assembly and the second adjusting assembly can adjust the distance between the recovery device and the wall face and the distance between the adsorption assembly and the wall face according to the situation of the wall face, the sand recovery rate of the recovery device can be increased, it can be guaranteed that the sand blasting effect of the sand blasting gun is uniform, and the swing arm sand blasting robot can smoothly cross an obstacle and cannot be stuck; and the environmental adaptability of the swing arm sand blasting robot is improved.

The invention belongs to the technical field of automatic sand blasting, and provides a mechanical arm sand blasting track generation method and system, a medium and a robot. The mechanical arm sand blasting track generation method comprises the steps that key process parameters of a sand blasting system are discretized in a layered mode; calculating the actual angle of each joint of the positioner; coordinates of spraying points are calculated; the joint angle of the mechanical arm is calculated, and the collision-free effective posture of the mechanical arm meeting the sand blasting process requirement is screened; a collision-free and process-feasible configuration space diagram is constructed, the vertex of the configuration space diagram is composed of all spraying points, and the edge of the configuration space diagram is composed of paths of the adjacent spraying points; and according to the collision-free and process-feasible configuration space diagram, an optimal path from a preset starting vertex to a target vertex is searched for and serves as a mechanical arm sand blasting track for optimizing the kinematics performance and the sand blasting process quality at the same time. The automatic level of sand blasting treatment, the consistency of treatment quality and the overall operation efficiency can be improved.

The invention discloses a particle erosion test device and method, and belongs to the technical field of particle erosion tests.The particle erosion test device comprises a clamping piece used for clamping a workpiece, a sand blasting device and a laser emitter, and the laser emitter is used for emitting laser to irradiate the workpiece so as to heat the workpiece; the particle erosion test device further comprises cooling water pipes and a vacuum pipe, the vacuum pipe is arranged outside the laser transmitter in a sleeving mode, the two opposite ends of the vacuum pipe are connected with the cooling water pipes, and the cooling water pipes are communicated with the cooling water tank. The cooling water pipe is used for introducing circulating cooling water into the vacuum pipe so as to adjust the temperature of the laser transmitter, and the air compressor sprays compressed air to the workpiece through the compressed air spraying pipe so as to cool the workpiece. Through combined use of the laser heating device and the particle erosion device, a particle erosion test in an extreme environment is stably simulated, and the effectiveness of the test is ensured.

The invention discloses a preparation method of a wear-resistant coating of a piston rod, and aims to solve the problems of low bonding strength, high porosity, easiness in oxidation, large residual stress and the like of an existing coating. The method comprises the following steps: firstly, carrying out alkaline oil removal and sand blasting roughening pretreatment on a piston rod matrix, and carrying out sand blasting for 5-10 minutes by adopting aluminum oxide sand grains of 120-200 meshes under the pressure of 0.4-0.6 MPa; then NiCrMo alloy powder with the thickness of 15-45 microns is sprayed through high velocity oxy-fuel to form a bottom layer with the thickness of 80-120 microns, and the binding force of the coating and a base body is enhanced; then, WC-Co-Cr composite ceramic powder with the mass fraction of WC being 70%-85% is subjected to laser cladding, a wear-resisting layer of 300-500 microns is prepared, and argon at the speed of 10-15 L / min is synchronously introduced to prevent oxidation; finally, under the vacuum degree of 1 * 10 <-3 >-1 * 10 <-2 > Pa, the temperature is increased to 400-500 DEG C at the speed of 5-10 DEG C / min, heat preservation is conducted for 2-3 h Through gradient coating design and parameter synergy, the compactness of the coating exceeds 99%, the hardness reaches HV1200-1500, the bonding strength exceeds 70 MPa, compared with a traditional process, the wear-resistant life is prolonged by 3.2 times, the salt spray corrosion resistance exceeds 1500 hours, hexavalent chromium pollution is avoided, and the coating has remarkable industrial application value.

The invention provides a preparation method and application of a pure copper coating, and relates to the field of surface functional coatings, and the preparation method comprises the following steps: preparing pure copper powder, and carrying out sand blasting treatment on the surface of an aluminum alloy substrate; the aluminum alloy substrate is fixed in a closed cold spraying chamber, and pure copper powder is loaded into helium cold spraying equipment in the closed cold spraying chamber; vacuumizing until the pressure in the closed cold spraying chamber is lower than a preset pressure threshold value and the oxygen content in the chamber is lower than a preset value; helium in a buffer tank is adopted as main gas and powder feeding gas, and a pure copper coating is formed on the surface of the aluminum alloy substrate through spraying of helium cold spraying equipment; and the helium circulation system is synchronously started to recover helium in the cavity, and the helium is compressed into the buffer tank after being filtered and cooled, so that helium circulation is realized. The method adopts the circulating helium atmosphere to avoid the problem that the impurity content of the coating is increased due to high-temperature oxidation of the copper coating, the oxygen content of the coating is remarkably reduced, and the particle interface bonding is improved, so that the electric conduction and heat conduction performance of the pure copper coating is improved, and the helium use cost is reduced.

The utility model discloses a car hopper sand blasting and grinding device which comprises a working table, a transverse plate is installed on the working table through a lifting mechanism, the lifting mechanism is used for driving the transverse plate to ascend and descend, a second rotating shaft is rotatably installed in the transverse plate, a rotating mechanism used for driving the second rotating shaft to rotate is installed in the transverse plate, and the rotating mechanism is used for driving the second rotating shaft to rotate. And a fixing frame is fixed to the top of the second rotating shaft, a spray gun is installed in the fixing frame, the spray gun communicates with a sand supply pipe, and universal wheels are installed at the bottom of the workbench. According to the utility model, the transverse plate can drive the spray gun to move up and down, so that the sand blasting and polishing height can be conveniently adjusted; and the fixing frame can drive the spray gun to rotate through the rotating mechanism, so that the sand blasting and grinding angle can be conveniently adjusted.

The invention discloses a mounting method of an engineering blackbody element in an industrial heating furnace, which comprises the following steps: three positioning holes are symmetrically formed in an element mounting surface in a triangular shape, a semicircular diversion trench is formed between every two adjacent positioning holes, and the mounting surface is subjected to sand blasting treatment; manufacturing a positioning gasket according to the curvature of the inner wall of the hearth, wherein the positioning gasket is arranged between the element mounting surface and the inner wall of the hearth; coating or spraying a high-temperature-resistant permeation type adhesive on the element mounting surface and the inner wall of the hearth, adhering the element to the inner wall of the hearth, and screwing the element on the inner wall of the hearth by adopting a screw through a positioning hole and a positioning gasket; high-temperature-resistant fastening screws are evenly distributed on the periphery of the element and vertically screwed into refractory bricks or concrete base materials on the inner wall of a hearth to lock the position of the element. According to the method, the defects of traditional engineering black body element installation are overcome, high-strength, long-acting and stable connection between the engineering black body element and the inner wall of the hearth is achieved, the problem that the element is prone to displacement and falling off under the high-temperature working condition is effectively solved, and the continuous effectiveness of kiln energy-saving transformation is guaranteed.

The invention discloses an organic-inorganic multi-layer composite coating material with functions of promoting cell adhesion, resisting infection and promoting osteogenesis and a preparation method of the organic-inorganic multi-layer composite coating material. The method specifically comprises the following steps: 1) carrying out primary sand blasting treatment on a titanium / titanium alloy sample, then removing an oxide layer on the surface of the titanium / titanium alloy sample by using an ultrasonic oil removal and glow discharge cleaning process, and constructing a copper / zinc alloy coating on the surface of the sample by combining an electrochemical deposition process; 2) carrying out micro-nano processing on the coating by using a secondary sand blasting process to introduce a topological morphology; (3) depositing a polydopamine PDA coating on the surface by using an in-situ auto-polymerization process, and simultaneously dipping to complete the chelation of Fe < 3 + > and PDA; 4) further utilizing an ultrasonic impregnation process to realize conversion from PDA-Fe < 3 + > chelation to PDA-Fe < 3 + >-salvianolic acid b chelation so as to introduce a salvianolic acid b layer, and washing, air-drying and sterilizing to obtain the material. The material has multiple cell adhesion promotion, infection resistance and multiple osteogenesis promotion functions, and can realize innovation of coating technologies in the fields of orthopedics, dentistry and the like.

The invention relates to the technical field of titanium sponge production reduction furnaces, in particular to an automatic cleaning device for a titanium sponge production reactor and a control method, and the device comprises a sand blasting cleaning machine, a compressed air conveying unit and a cleaned material separation device; the sand blasting cleaning machine comprises a sand blasting unit, a material recovery unit and an automatic reactor cleaning trolley device with eight groups of fixed pulleys, and the sand blasting unit is provided with a sand blasting cleaning rod, a sand blasting pre-storage control unit, a compressed air storage unit and a compressed air control unit. The material recycling unit is provided with a cleaned material adsorption device, a cleaned material recycling and transferring unit and a recycled cleaned material conveying pipeline; a compressed air inlet pipeline is connected with a compressed air conveying unit and a compressed air control unit; according to the control method, forward cleaning and reverse cleaning are carried out, the pressure of 0.6-0.7 Mpa is maintained, cleaning sand of 0.5-2.0 mm is adopted, and cleaning is completed within 40-60 minutes. The device is high in automation degree, stable in cleaning quality and capable of protecting the reactor, reducing cost, improving efficiency and eliminating potential safety hazards.

The invention provides a heat dissipation plate machining process. The heat dissipation plate machining process comprises the steps that an aluminum alloy plate is subjected to sand blasting roughening after being machined; after sand blasting, staying for 5-30 minutes in an environment with the temperature of 25-40 DEG C and the relative humidity of 60-85 Sequentially carrying out first liquid pulse treatment and second liquid pulse treatment by adopting an atomization mode at an interval of 20-120s, and controlling the liquid loading capacity to be in a film state; then carrying out medium-temperature heat treatment at 60-100 DEG C to fix an interface state; and directly carrying out zirconium-series non-phosphorus conversion film treatment on the premise of no acid pickling or alkali etching, and cleaning and inspecting the zirconium-series non-phosphorus conversion film. According to the technology, through cooperative adjustment of temperature and humidity retention and double-pulse film treatment, the state fluctuation of the sand blasting surface is reduced, and the film forming uniformity, adhesive force and corrosion resistance of a conversion film are improved.

This application relates to an automatic sandblasting device for processing automotive parts, comprising a sandblasting chamber with a door on one side, a plurality of nozzles on the inner wall of the sandblasting chamber, and a support frame inside the sandblasting chamber. The support frame is connected to the sandblasting chamber via a connecting assembly. The support frame includes a support rod and a plurality of support brackets arranged along the length of the support rod, and a plurality of support hooks are circumferentially spaced at the bottom of the outer wall of the support bracket. Automotive parts are placed on the support brackets of the support frame or hung on the support brackets via the support hooks, and sandblasting is performed by the plurality of nozzles, allowing for multi-angle sandblasting of the automotive parts on the support frame, thereby improving sandblasting efficiency.

The utility model belongs to the field of sand blasting tools, and particularly relates to a notebook computer cover plate sand blasting tool which comprises a tank body, and a sand blasting assembly is fixedly installed on the inner wall of the tank body. The surface of the sand blasting assembly is provided with a plurality of nozzles used for blasting sand to the notebook computer cover plate. The top of the tank body is fixedly connected with a motor; the output end of the motor is fixedly connected with a main rod; the main rod and the tank body are arranged in a penetrating manner and are rotationally connected; a plurality of supporting rods are symmetrically and fixedly connected to the middle part of the main rod; a plurality of clamping mechanisms are arranged on each supporting rod; the clamping mechanism comprises a pair of fixing plates; clamping plates are symmetrically and rotationally connected between the pair of fixing plates; a spring is fixedly connected between the pair of clamping plates; through the cooperation of the motor and the clamping assembly, the cover plate can be in a rotating posture during sand blasting, the sand blasting assembly can conveniently conduct sand blasting on the two faces of the cover plate, and the operation that the cover plate needs to be turned over repeatedly during sand blasting is simplified.

The utility model discloses a wet type sand blasting machine which comprises a first belt conveying mechanism and a second belt conveying mechanism, an automatic feeding structure, a spray gun lifting structure, a pre-cleaning spray head and a secondary cleaning spray head are sequentially arranged on one side of the upper portion of the first belt conveying mechanism from left to right, and the lower portion of the spray gun lifting structure is connected with a spray gun structure. A movable ultrasonic cleaning structure, a rinsing spray head, a hot air spray head and an automatic discharging structure are sequentially arranged above the second belt conveying structure from left to right. The rear end of the hot air spray head is connected with a hot air drying structure through a pipeline. The pre-cleaning spray head and the secondary cleaning spray head are connected with the precise solid-liquid separation structure through pipelines, and the precise solid-liquid separation structure is arranged at the ends, away from the first belt conveying structure, of the pre-cleaning spray head and the secondary cleaning spray head. According to the utility model, wet-type sand blasting can be facilitated.

The utility model belongs to metal material processing technical field, specifically speaking is a kind of stainless steel water tank processing sand blasting device, including storage jar, the outside both sides of storage jar are fixedly installed with a plurality of first fixed plate, the bottom one end of a plurality of first fixed plate is fixedly installed with limit stop, rotatingly installed with connecting block between a plurality of first fixed plate, the bottom of connecting block is tightly in the top of limit stop, rotatingly installed with first fixed block in the inside of connecting block;Connecting block of first fixed plate between damping shaft connection utilizes the rotary resistance that damping shaft passes through its internal viscous medium, makes rotary lever and damping rod hover, slows down its descending speed, when rotating to certain angle, connecting block will be blocked by limit stop, makes that spray gun cannot continue to descend, and the rotary angle of spray gun is made by damping shaft to resist the force that its output port keeps forward direction makes it, avoid the problem that spray gun drops to ground due to the impact force of sand blasting process to cause injury to surrounding personnel.

The present application relates to the field of high-speed spraying technology, in particular to a supersonic flame spraying process for steam turbine blades. The present application overcomes the problems of insufficient coating bonding strength and poor corrosion resistance of the supersonic flame spraying. The present application uses nickel-coated alumina composite sand for sandblasting pretreatment of the blades to achieve micro-implantation of active nickel; adjusts the ratio of NiCr and Cr3C2-NiCr powders by using double powder feeders to build a gradient structure coating with continuous component change; uses a modified sealing agent containing nano-alumina for vacuum impregnation sealing; and finally obtains finished blades through graded vacuum diffusion annealing. Through surface nickel implantation, gradient structure design and diffusion annealing, the present application realizes metallurgical bonding and thermal stress matching between the coating and the substrate, greatly improving the bonding strength; at the same time, the in-situ ceramicization reaction of the sealing agent eliminates micro-pores, significantly enhancing the corrosion resistance of the coating.

The base material cleaning device comprises supporting legs, transverse supporting supports are arranged on the two sides of the supporting legs, the supporting legs and the transverse supporting supports form a working support, a working table is arranged on the working support, sand blasting sets are symmetrically arranged on the two sides of the working table, and the sand blasting sets are arranged on the working support. A material overturning group is arranged between the sand blasting groups; the material overturning set comprises a clamping set, vertical supporting plates, a transmission set and a driving set, the vertical supporting plates are located at the front end and the rear end of the workbench, and according to the automatic overturning mechanism of the material overturning set, the processing time is greatly shortened, the production efficiency is improved, manual intervention is reduced, and the production efficiency is improved. The combination of gear transmission and pneumatic driving ensures the accuracy and repeatability of the overturning action, the processing speed and consistency are improved, the flexible clamping design can adapt to base materials of different shapes and sizes, and the universality of the equipment is improved.