265 results about "Aluminum coating" patented technology

The invention discloses a method for preparing dimethyl carbonate through reaction of CO and methyl nitrite, belongs to the technical field of preparation of dimethyl carbonate, and aims to solve the problem that in the prior art, in the process of preparing dimethyl carbonate through catalysis of reaction of CO and methyl nitrite, the reaction time is short. The preparation method specifically comprises the following steps: in an inert gas atmosphere, mixing and stirring isocyanatopropyltriethoxysilane and N, N-dimethylformamide, raising the temperature of a reaction system to 50-60 DEG C, carrying out a reaction for 1-2 hours, and carrying out a reaction for 1-2 hours, so as to obtain a reaction solution; and 3-aminopropionic acid is added into the reaction system. According to the method, silicon-aluminum coating, potassium modification and 18-crown-6-ether modification are sequentially performed after a halogen-free palladium-copper catalytic system is prepared, so that the conversion rate of impurities and the chromatic value of a product are reduced, the conversion rate of methyl nitrite is effectively increased, and the service life of the catalyst is effectively prolonged.

A system includes a laser welder configured to weld a first steel workpiece to a second workpiece at an interface between them. The workpieces may have similar or dissimilar compositions and / or thicknesses. A filler wire may be used to fill a gap at the interface and / or provide a weld joint composition that accounts for the intrusion of aluminum coating from the workpiece(s) into the weld joint. The laser welder's laser beam may be laterally offset from the interface toward one of the workpieces (e.g., a thicker or stronger of the workpieces).

The invention discloses a self-lubricating aluminum coating and a preparation method thereof.The preparation method comprises the steps that molybdenum disulfide is pretreated through a silane coupling agent, tetraethoxysilane mixed liquor is added, the pH is adjusted to be 9-10, a water bath reaction is conducted, and molybdenum disulfide-silicon dioxide microcapsules are obtained after high-temperature strengthening treatment; respectively adding a zinc nitrate solution and a hexamethylenetetramine solution, adjusting the pH value to 10-11, carrying out a high-temperature and high-pressure hydrothermal reaction to obtain zinc oxide nanorods, and carrying out ball milling treatment on the zinc oxide nanorods, microcapsules, stearic acid and zirconium oxide balls under the protection of argon to obtain doped microcapsules; after raw materials are pretreated, the raw materials and a dispersing agent solution are added into a mixer respectively, spraying powder, a pretreated base body and the spraying powder are obtained after mixing treatment, spraying treatment is conducted on the surface of the base body through a plasma spraying method, and the self-lubricating aluminum coating is obtained after vacuum annealing treatment. Therefore, the obtained self-lubricating aluminum coating is low in friction coefficient, high in performance and excellent in self-lubricating property.

The invention relates to a method for plating aluminum on the surface of a neodymium-iron-boron magnetic material, which comprises the following steps: by taking ionic liquid as an electroplating medium, optionally adding manganese chloride, adding a proper amount of additive, controlling the current distribution in the electroplating process through pulse current, and electroplating at proper temperature and current conditions. And a corrosion-resistant aluminum coating with high binding force and high compactness is obtained on the surface of the neodymium iron boron magnetic material. According to the method, the hydrogen evolution reaction is avoided, the bright and uniform aluminum coating is obtained, and the method is environmentally friendly, stable in process and suitable for high-performance surface protection and functionalization of the neodymium iron boron magnetic material.

The invention relates to a waterborne epoxy zinc-aluminum coating and a preparation method thereof. The coating consists of a component A and a component B, wherein the component A comprises or consists of the following components in parts by weight: 25-30 parts of water-borne epoxy resin; 0.1 to 0.2 part of a defoaming agent; 2-4 parts of propylene glycol monomethyl ether; 5-8 parts of propylene glycol butyl ether; 1.5 to 2 parts of fumed silica; 0.2-0.4 part of a molecular sieve dewatering agent; 0.6 to 1 part of bentonite; 0.1 to 0.5 part of nano CeO2; and 55-60 parts of zinc-aluminum alloy powder. The component B comprises or consists of the following components in parts by weight: 65-70 parts of a curing agent; 25 to 30 parts of deionized water; 2-5 parts of an anti-flash-corrosion auxiliary agent; wherein the mass ratio of the component A to the component B is 6: 1. The solid content of the waterborne epoxy zinc-aluminum coating is gt; the VOC content is 65%, and the VOC content is lt; therefore, the environmental protection performance is greatly improved.

A gas turbine engine component includes a substrate having first surface and a second surface disposed opposite the first surface, a plurality of holes extending through the substrate from the first surface to the second surface, the holes defined by a plurality of respective walls each extending from the first surface to the second surface, a metallic bond coat disposed on the first surface, and an aluminide coating disposed on the first surface, the second surface, and the walls. The metallic bond coat is disposed between the first surface and the aluminide coating and the walls are free of the metallic bond coat.

The invention discloses an enhanced tensile wear-resistant multi-twisted steel wire rope, which relates to the technical field of steel wire ropes, and structurally comprises a multi-twisted steel wire rope formed by twisting three sub-ropes in a left-to-right interactive manner, and each sub-rope is formed by twisting six stranded ropes in a right-to-right interactive manner; the aluminum-based carbon fiber composite core serves as the center of the stranded rope, and the gradient functional layer comprises six center steel wires on the inner layer, twelve micro-arc oxidation concave steel wires on the middle layer, eighteen graphene / zinc-aluminum coating convex steel wires on the outer layer and twelve phase change lubricating fiber bundles on the surface layer. The outer surface of the steel wire rope is sequentially coated with a self-repairing sealing layer containing repairing microcapsules, a boehmite / silane interface bonding layer and an Al2O3 / PEEK abrasion-resistant coating. The tensile strength and the structural stability are improved through a three-stage twisting process; the aluminum-based carbon fiber composite core and the gradient functional layer synergistically enhance core bearing, wear resistance and corrosion resistance; the phase change lubricating fiber bundles release lubricating components during friction, and damage repair is achieved through the self-repairing sealing layer; and the interface bonding layer and the wear-resistant coating strengthen the surface adhesive force and the wear resistance.

The invention provides a laser welding method for a metal workpiece with an aluminum coating on the surface, at least two laser beams are symmetrically arranged in the welding advancing direction in the laser welding process, the quality factor M2 of the laser beams is smaller than 1.5, each laser beam irradiates a welding assembly, and the welding assembly is welded with the aluminum coating on the surface of the metal workpiece. More than two deep melting small holes and molten metal surrounding the small holes are formed; under the irradiation of laser beam energy, the welding zone of the assembly is melted to form an overall slender molten pool, and the front edge of the molten pool tends to the vertical advancing direction to form a nearly rectangular morphology front end; the multiple deep penetration small holes drive surrounding liquid metal to flow and enable an aluminum coating on the surface of the weldment assembly to be melted, and distribution of aluminum in a molten pool tends to be uniform. According to the method, multiple laser beams are provided to act on laser welding of butt joint of the steel with the aluminum coating, so that the aluminum element is uniformly distributed in a welding seam, the influence of aluminum on a welding joint is weakened, the method is low in cost and simple to operate, and the laser welding joint with excellent performance can be obtained.

This invention discloses a corrosion-resistant aluminum-based multilayer coating on the surface of a sintered NdFeB magnet and its preparation method, comprising: pretreatment of the magnet; preparation of the aluminum coating: in the presence of an inert gas, after adjusting the pressure of the environment to a first preset value, depositing an aluminum coating on the pretreated sintered NdFeB magnet; preparation of the aluminum-based barrier coating: in the presence of a reactive gas, after adjusting the pressure of the environment to a second preset value, exciting the reactive gas into a high-density plasma, generating an aluminum-based barrier layer on the surface of the sintered NdFeB magnet with the deposited aluminum coating; repeating steps S200 and S300, followed by cooling, to complete the preparation of the corrosion-resistant aluminum-based multilayer coating on the surface of the sintered NdFeB magnet. This invention does not involve reactive sputtering, effectively avoiding the "palladium poisoning" phenomenon during the deposition process, and the prepared multilayer coating has excellent corrosion resistance.

The invention relates to the field of suspension plasma spraying, in particular to a long-service-life suspension plasma spraying thermal barrier coating based on a platinum-aluminum coating and a preparation method of the long-service-life suspension plasma spraying thermal barrier coating. The preparation method comprises the following steps: preparing a vertical crack or columnar-like structure ceramic layer on the surface of a platinum modified aluminide bonding layer with lower roughness by using suspension slurry prepared from fully-stable tetragonal phase yttrium oxide stabilized zirconium oxide powder and adopting suspension plasma spraying suspension, so as to obtain a thermal barrier coating system with long service life. The problems that in the prior art, due to stress existing between a ceramic layer prepared through plasma spraying and a low-roughness platinum modified aluminide bonding layer, cracks are continuously formed and expanded at an interface, and the service life of a thermal barrier coating system is short are solved. The long-life thermal barrier coating system can be prepared on the platinum modified aluminide bonding layer through suspension plasma spraying.

The invention relates to the technical field of coatings, in particular to a salt-fog-resistant aluminum coating fabric and a production process. The salt-fog-resistant aluminum coating fabric comprises the following raw materials in parts by weight: a basic fabric: 15-32 parts of polyester fibers, 12-28 parts of nylon fibers, 8-22 parts of glass beads and 25-65 parts of modified water-based acrylate emulsion; the spraying solution comprises the following components in parts by weight: 15-30 parts of graphene zinc powder, 12-23 parts of modified epoxy resin, 8-16 parts of an epoxy curing agent, 5-12 parts of polyether alcohol, 2-4 parts of a silane coupling agent, 21-36 parts of aluminum powder and 4-16 parts of hydroxyethyl cellulose. The prepared salt-fog-resistant aluminum coating fabric has excellent high-temperature oxidation resistance and stripping resistance, is excellent in performance as a roller shutter in a severe environment, and is good in scene penetrating effect, high in adhesion, good in reflection effect and good in corrosion resistance when being applied to the roller shutter.

The present application relates to the manufacture of high-strength steel coated plate welded parts, in particular to a welding material, a high-strength steel workpiece, a laser welded joint and a manufacturing method thereof. The composition of the welding material satisfies the following conditions in terms of percentage by weight: C is greater than or equal to 0.5%, trace alloying elements are 0-0.36%, the content of Mn and Si is less than or equal to 2%, 6% is greater than or equal to 5C+Mn and is greater than or equal to 2.5%, and the rest is Fe and inevitable other elements; the trace alloying elements are at least one of Nb, V and Ti elements, and the content of Nb, V and Ti elements is less than or equal to 0.12%. The method does not need to remove the aluminum coating, utilizes the solid solution strengthening effect of C, and makes the volume fraction of lath martensite in the final weld after quenching greater than or equal to 90%. This scheme reduces the addition of alloying elements, reduces the cost and process control difficulty, avoids the formation of coarse carbides, improves the mechanical properties and stability of the joint, has high fracture strength and elongation, and realizes the double improvement of the strength and toughness and economy of the joint.

The invention discloses an intelligent zinc-aluminum coating quality monitoring method and system for a wind power blade bolt, and solves the problems that internal defects of a coating cannot be found in an early stage and predictive maintenance cannot be realized in the prior art. The method comprises the following steps: acquiring multi-source monitoring data of coating internal defects, interface micro-strain and corrosion states through a terahertz imaging unit, a pre-embedded FBG sensing unit and a microelectrode array ECN acquisition unit which are integrated on an inspection robot; after carrying out local preprocessing by utilizing an edge computing gateway, synchronizing data to a digital twinborn analysis platform deployed with a coating state intelligent evaluation model so as to output a current health state grade and residual life prediction of the coating; finally, a maintenance decision suggestion is automatically generated or an equipment control instruction is triggered based on the result, closed-loop monitoring from state sensing to intelligent execution is formed, and the system comprises a corresponding hardware module and a software platform and is used for achieving the method.

Disclosed is a laser welded joint (2). When two steel plate base materials are butt-jointed for laser welding, a laser welding solder is added to a molten pool, thereby forming an initial weld seam, and the initial weld seam is quenched to form the laser welded joint (2), wherein at least one steel plate is a steel plate having an aluminum coating or an aluminum alloy coating; the volume fraction of lath martensite (21) in the laser welded joint (2) is not less than 90%, the average mass fraction of Mn is not less than 3.2%, the average mass fraction of Al is not higher than 1.4%, and the average mass fraction of C is lower than the C content of the steel plate base materials; and the height h1 of a reinforcement on the front face of a final weld seam formed by the laser welded joint (2) and the height h2 of a reinforcement on the back face of the final weld seam do not exceed 0.4 mm.

The aluminum fluoride coated nano silicon material is prepared from nano silicon powder, aluminum nitrate nonahydrate, ammonium fluoride, absolute ethyl alcohol and deionized water, and an aluminum fluoride coating layer and a nano silicon negative electrode material are compounded to form an aluminum fluoride coated nano silicon material structure. The aluminum fluoride coating layer on the surface can be converted into a fast ion conductor in the battery circulation process, so that the lithium ion diffusion rate is increased, and migration of lithium ions between the nanometer silicon negative electrode and the electrolyte is promoted. Under the coating protection effect of the coating layer, the volume expansion of the nano-silicon material is improved, the voltage attenuation speed is slowed down, the cycling stability is greatly improved, the cycling performance of the nano-silicon negative electrode material is improved, and silicon particle breakage, material pulverization and falling off from a pole piece are avoided. The coating amount of the aluminum fluoride coating layer is compared, and the optimal coating amount is given. The method has the advantages of low cost and high controllability.

The invention relates to a metal plated carbon fiber which comprises a carbon fiber layer, a copper or nickel plating layer is arranged on the carbon fiber layer, and an aluminum plating layer is arranged on the copper or nickel plating layer. The invention also relates to a manufacturing method of the metal-plated carbon fiber, which comprises the following steps: S1, plating copper or nickel on the surface of the carbon fiber by magnetron sputtering: in the plating process of the copper plating layer, setting the magnetron sputtering power to be 150-300W, the argon flow to be 30-80sccm and the sputtering time to be 5-15 minutes; in the sputtering process of the nickel plating layer, the magnetron sputtering power is set to be 300-350 W, the gas ratio is set to be that the ratio of argon to nitrogen is (3.5-4.5): 1, the gas flow is 40-80 sccm, and the sputtering time is 10-20 minutes; and S2, controlled sputtering aluminum plating is conducted, specifically, in the sputtering process of the aluminum plating layer, the power is set to be 250-350 W, the flow of argon or nitrogen is 40-80 sccm, and the sputtering time is 15-25 minutes. According to the method, the stability of the composite material is enhanced, the thermal conductivity and thermal stability are improved, the mechanical property is improved, and the coating thickness can be adjusted.

The invention relates to manufacturing of high-strength steel coated and plated plate welding parts, in particular to a welding flux, a high-strength steel workpiece, a laser welding joint and a manufacturing method of the laser welding joint. The solder comprises the following components in percentage by weight: more than or equal to 0.5% of C, 0-0.36% of trace alloy elements, less than or equal to 2% of Mn, less than or equal to 2% of Si, more than or equal to 6% of 5C + Mn and more than or equal to 2.5% of Fe and other inevitable elements, the trace alloy element is at least one of Nb, V and Ti elements, and the content of the Nb, V and Ti elements is not more than 0.12%. According to the method, an aluminum coating does not need to be removed, and the volume fraction of lath martensite in the quenched final weld joint is larger than or equal to 90% by means of the solid solution strengthening effect of C. According to the scheme, alloy element addition is reduced, cost and process control difficulty are lowered, thick carbide is prevented from being formed, the mechanical property and stability of a joint are improved, and the high breaking strength and ductility are achieved; the obdurability and the economical efficiency of the joint are improved.

According to the high-strength long-service-life steel wire rope special for the port, the first steel wire strand, the second steel wire strand and the third steel wire strand are all formed by weaving and twisting galvanized stainless steel wires with the outer surfaces plated with chromium-free zinc-aluminum coatings, and the corrosion resistance of the steel wire rope is remarkably improved while it is guaranteed that the steel wire rope has the high strength performance; the service life of the steel wire rope is obviously prolonged. Lubricating grease is stored in the oil storage rope core of the first filling rope, the oil storage cotton of the second filling rope and the composite fiber strands, so that when the steel wire rope is impacted or bent, the oil storage rope core in the center of the steel wire rope can slowly release the lubricating grease; the composite fiber strands are arranged on the rope core, oil storage cotton on the outer side of the rope core and lubricating grease in the composite fiber strands cooperate to lubricate the rope core and the steel wire strands of the outer strand layer, lubricating films are formed on the surfaces of the steel wire strands, and therefore the friction coefficient between the steel wire strands is reduced, the corrosion resistance is further enhanced, and the steel wire rope has the long service life and the strength stability is kept.

The invention relates to an acrylic acid-organic silicon dual-modified polyester aqueous dispersion, which is prepared from the following components in percentage by weight: 1 to 5 parts of hexahydrophthalic anhydride, 10 to 15 parts of isophthalic acid, 1 to 5 parts of adipic acid, 15 to 20 parts of neopentyl glycol, 0.5 to 1 part of unsaturated binary acid, 1 to 2 parts of reflux solvent, 5 to 10 parts of acrylate mixed monomer, 0.5 to 1 part of acrylic acid, 5 to 10 parts of cosolvent, 1 to 5 parts of organic silicon modifier, 0.5 to 5 parts of dimethylethanolamine neutralizer and 40 to 45 parts of deionized water. The acrylic acid and the organic silicon are used for modifying the polyester at the same time, the weather resistance, the hydrolysis resistance and the adhesive force are remarkably improved while the high flexibility of the water-based polyester is kept, the synthesized water-based polyester dispersion can be used for preparing high-performance water-based coil steel coating or coil aluminum coating or other water-based amino coating with VOC smaller than or equal to 100 g / L, and good comprehensive performance is achieved.

The invention discloses a multicolor laser film and a processing method thereof. The multicolor laser film comprises a coating and a carrier layer, multiple color areas are formed on the coating through laser, and limpid laser of the multiple color areas exists on the same coating to form a multi-color laser layer; the thickness of the multi-color laser layer is between 0.8 mu m and 2 mu m; a vacuum aluminum plating layer is arranged on the back surface of the coating of the multi-color laser layer; the vacuum aluminum-plated layer can be transferred or compounded on the carrier layer at one time through the adhesive layer, so that the whole structure presents a multi-color laser pattern; and the base film is adhered to the top surface of the multi-color laser layer and can play a role in protecting the surface of the multi-color laser layer. By adopting the arrangement, the multicolor laser film has the advantages of high precision and paper cost saving, and paper damage can be reduced during processing.

The application relates to the technical field of zinc-aluminum coating detection, in particular to a method for rapidly detecting the contents of Zn, Al and Si elements in a zinc-aluminum coating; the method comprises the following steps: ultrasonic cleaning of the zinc-aluminum coating to be detected to obtain a pretreated sample; glow surface analysis of the pretreated sample by using a glow spectrum method, drawing of a horizontal and vertical coordinate graph, and obtaining of an Fe-h curve graph, a Zn-h curve graph, an Al-h curve graph and a Si-h curve graph; according to the curve graphs, the total mass of Zn, Al and Si is respectively calculated; the thickness of the zinc-aluminum coating to be detected is calculated by taking the Fe-h curve graph as a standard curve; according to the curve graphs and the thickness of the zinc-aluminum coating to be detected, the average mass of Zn, Al and Si is respectively obtained; and according to the average mass and the total mass, the average mass fraction of Zn, Al and Si is obtained. The method can avoid the substrate effect of the zinc-aluminum coating in the detection process, so that the accuracy of the zinc-aluminum coating detection is improved.

The utility model relates to a lightweight low-cost coaxial cable for a vehicle, which sequentially comprises a wire core, a metal wrapping tape, a shielding layer and a sheath layer from inside to outside, and the metal wrapping tape is a layer of double-sided metal wrapping tape wrapped outside the wire core; the shielding layer is formed by weaving an aluminum coating basalt fiber shielding weaving layer on the surface of the metal wrapping tape, and 24 ingots and 10 aluminum coating basalt fiber conductors with the monofilament diameter being 0.23 [mu] m are adopted to be evenly attached to the surface of the metal wrapping tape. The wire core is composed of a 7 / 0.26 bare copper conductor and a foaming PP insulating layer, and the outer diameter of the wire core is 2.02-2.18 mm. And the sheath layer is made of PVC (Polyvinyl Chloride). The utility model provides a vehicle coaxial cable which is light in weight and low in cost.

To provide a positive electrode active material that can achieve high density, high capacity, and a long life characteristic, and can reduce the high-temperature preserved gas generation quantity, and a positive electrode and a lithium secondary battery including this positive electrode active material.SOLUTION: A positive electrode active material according to an embodiment includes a core particle including layered lithium nickel manganese composite oxide and being in a secondary particle mode in which a plurality of primary particles are aggregated, an aluminum coating layer existing on a surface of the core particle, and a grain boundary coating part existing on a surface of the primary particle and containing cobalt.SELECTED DRAWING: Figure 1

The invention relates to a high-dispersion, high-gloss and high-covering-power printing ink titanium dioxide inorganic coating method, and belongs to the field of titanium dioxide post-treatment production. The method comprises the following steps: a, selecting a primary product; b, pulping and dispersing the primary product; c, inorganic zirconium oxide coating; d, inorganic aluminum oxide film coating is conducted, and aluminum oxide film layer deposition is conducted through a two-step method and is conducted under the acid condition and the alkaline condition respectively; and e, drying, crushing and adding an organic treatment agent. According to the method, a three-step zirconium-aluminum coating method is adopted to realize accurate modification of titanium dioxide surface properties. The compact alumina film layer under the acidic condition further improves the glossiness and weather resistance of the product, and the loose porous alumina film layer under the alkaline condition provides more surface hydroxyl groups, so that the compatibility of the product and a printing ink system is improved. The problems that the titanium dioxide product prepared by the existing method is difficult to improve the compatibility with an ink system and the dispersibility while ensuring key application performance indexes of glossiness, whiteness and covering power are solved.

The utility model provides coated glass, which relates to the technical field of coated glass and comprises a glass substrate, and a first titanium oxide coating layer, a zinc oxide aluminum coating layer and a second titanium oxide coating layer which are sequentially stacked on the surface of the glass substrate, wherein the first titanium oxide coating layer is made of anatase type titanium oxide, and the second titanium oxide coating layer is made of anatase type titanium oxide. The coated glass provided by the utility model can accelerate the fading of methyl blue and degrade pollutants such as formaldehyde under the irradiation of ultraviolet light.

The invention discloses a fluorine-free super-hydrophobic weather-resistant top coating material and an application method thereof. The material is composed of a component A and a component B, the component A comprises the following components in percentage by weight: 1-100% of weather-resistant epoxy resin, 1-4% of polyethylene micro powder, 0.5-20% of hydrophobic modified micro powder, 0-10% of a hydrophobic aid, 0-10% of other aids and the balance of an organic solvent A; based on 100% of the component B, the component B comprises 1-100% of a curing agent and the balance of an organic solvent B; the mass ratio of the component A to the component B is (1: 99)-(99: 1). After the component A and the component B are mixed, the mixture is sprayed, dip-coated or brushed on paint or a metal substrate, and a film can be formed through natural drying or thermocuring. On the premise that the prepared top coat does not contain fluorine, the top coat still has excellent weather resistance and hydrophobic and oleophobic capacities; and the top coat is matched with the zinc-aluminum coating primer for use, so that the anti-corrosion capability of the composite coating can be greatly improved.

Embodiments of the present disclosure generally relate to methods for etching a carbon hard mask to have improved etching selectivity and profile control. In some embodiments, a method is provided for processing a carbon hard mask layer, which includes positioning a workpiece within a process area of ​​a processing chamber, wherein the workpiece has a carbon hard mask layer positioned on or throughout the underlying layer, and processing the carbon hard mask layer by exposing the workpiece to a sequential penetration synthesis (SIS) process to produce an alumina-carbon hybrid hard mask denser than the carbon hard mask layer. The SIS process includes exposing the carbon hard mask layer to an aluminum precursor to penetrate the carbon hard mask layer with the aluminum precursor, purging and removing gaseous residues, exposing the carbon hard mask layer to an oxidizing agent to penetrate the carbon hard mask layer with the oxidizing agent to produce an alumina coating positioned on the inner surface of the carbon hard mask layer, and purging the process area to remove gaseous residues.

The utility model discloses an efficient and energy-saving waste gas treatment device for an alumite coating machine, which relates to the technical field of environmental protection equipment and comprises a combustion tube provided with a waste gas treatment component and a heat exchange component. The waste gas treatment assembly comprises a mounting block, an igniter, an electromagnetic valve gas nozzle, a combustion-supporting gas pipe, a flow guide groove and a water collecting tank; according to the technical scheme provided by the utility model, the waste gas treatment assembly is arranged, specifically, coating machine waste gas containing volatile organic compounds is introduced into the combustion tube, then combustion-supporting gas is introduced through the solenoid valve gas nozzle in a controlled quantity manner, and the igniter is used for igniting to generate carbon dioxide and water; therefore, the volatile organic compounds in the waste gas of the rapid coating machine can be rapidly treated.

The application discloses a compressor blade phosphate aluminum coating precision grinding and polishing path generation method and system based on point cloud data processing, which comprises the following steps: obtaining point cloud data of the coating surface of the compressor blade by using a three-dimensional scanning device, filtering and denoising the point cloud data, and pre-processing the data, and aligning the pre-processed point cloud data with a robot machining reference coordinate system; based on the local curvature of the point cloud, the point cloud model is divided into multiple layers of contour slices by using a curvature adaptive slicing algorithm, wherein the slicing interval is negatively correlated with the local curvature radius; the contour points of each layer of slices are B-spline fitted to generate a continuous grinding and polishing path curve; the robot executes the grinding and polishing path curve, and integrates a real-time thickness detection device; when the thickness measurement value deviates from a preset threshold value, closed-loop feedback control is performed, and the grinding and polishing path and / or grinding and polishing parameters are dynamically compensated. The application has the advantages of high machining precision, high efficiency, high consistency and the like.

The invention relates to the technical field of precision cutters, and particularly discloses a preparation method of a fine-grain aluminum oxide CVD coated cutter based on ultrasonic intervention. The preparation method comprises the following steps: S1, depositing a TiCN transition layer on a cutter substrate by adopting a CVD (Chemical Vapor Deposition) process; s2, mixed gas of AlCl3, CO2 and H2 is introduced into the CVD reaction chamber to deposit an alpha-Al2O3 layer, and ultrasonic waves are adopted to continuously intervene in the Al2O3 nucleation stage, so that the size of a primary crystal nucleus is smaller than or equal to 50 nm; and S3, ultrasonic waves are stopped, and the alpha-Al2O3 layer continues to be deposited. According to the fine-grain aluminum oxide CVD coated cutting tool based on ultrasonic intervention and the preparation method thereof, the problems that in an existing CVD technology, alpha-Al2O3 grain refinement is insufficient, and transition layer crystal nucleus distribution is uneven can be solved, and a novel coating technology for intervening crystal nucleus generation through ultrasonic waves is provided.