630 results about "Spray forming" patented technology

The invention provides an Al alloy film for use as an electrode of a semiconductor device and also provides an Al alloy sputtering target used to produce such an Al alloy film wherein the Al alloy film has not only a low resistivity equal to or less than 5 mu OMEGA cm and a high hillock resistance (property of hillock suppression) but also a high dielectric strength when it is anodized into an anodic oxide film and wherein the Al alloy film has a composition such that the Ni content is equal to or greater than 0.3 at % and the Y content is equal to or greater than 0.3 at % and such that 0.22 CNi+0.74 CY<1.6 at % where CNi denotes the Ni content (at %) and CY denotes the Y content (at %) and further wherein, in order to deposit the Al alloy film by sputtering, a spray forming Al alloy target containing Ni and Y is used.

An elastomeric gel-filled prosthetic implant having a shell made of a single gel barrier layer. The barrier layer is formed of a homogeneous silicone elastomer capable of sterically retarding permeation of the silicone gel through the shell and having a bleed rate that is less than about 40% of the bleed rate of current shells which use a sandwiched construction with an internal barrier layer. Further, the barrier layer shell is made of a material that exhibits a wet strength that is comparable to or greater than current shells. The silicone elastomer may be a polydimethyl siloxane, and the substituted chemical group is a diphenyl group with a minimum mole percent of at least 13%. The implant may be designed for breast reconstruction or augmentation such that the shell is accordingly shaped. The shell wall thickness is at least 0.254 mm (0.010 inches), and desirably about 0.456 mm (0.018 inches). The implant shell may be made by dip-forming, spray-forming, or rotational molding. The exterior may be smooth or textured.

A topical sustained release delivery system for delivery of antifungal agents to the finger or toenails achieving high penetration through the nails by combining the antifingal agent with a keratolytic agent and a humectant. The pharmaceutical sustained release topical preparation is provided in a varnish or spray form for treating the nail and surrounding tissues, where the active ingredient is an antifungal agent, a keratolytic agent, or preferably a combination of an antifuingal and a keratolytic agent. The composition may further comprise an antibacterial, an antiviral, an antipsoriatic agents, or combinations thereof.

The invention belongs to a manufacturing technology of aluminum alloy and relates to a method for manufacturing a high-strength 7055 aluminum alloy forge piece formed by spraying. The method sequentially comprises the following steps: (a) melting components of 7055 alloy in an intermediate frequency furnace; (b) degassing, deslagging, refining and filtering an aluminum alloy fusant; (c) forming the filtered fusant by spraying to obtain a columnar aluminum alloy ingot blank; (e) carrying out hot extrusion on the aluminum alloy ingot blank formed by spraying; (f) constantly cutting the extrusion ingot as required and then carrying out free forging; (g) carrying out blocker-type forging and / or stamp forging on the blank after the free forging to obtain a stamp forging piece; and (h) carrying out T6 heat treatment on the stamp forging piece. A large-specification and high-property 7055 product can be obtained by using the method which is suitable for industrial production.

Methods and apparatus for producing large diameter superalloy ingots are disclosed. A material comprising at least one of a metal and a metallic alloy is introduced into a pressure-regulated chamber in a melting assembly. The material is subjected to a wide-area electron field within the pressure-regulated chamber to heat the material to a temperature above the melting temperature of the material to form a molten alloy. At least one stream of molten alloy from the pressure-regulated chamber is provided from the melting assembly and is fed into an atomizing assembly, where particles of the molten alloy are generated by impinging electrons on the molten alloy to atomize the molten alloy. At least one of an electrostatic field and an electromagnetic field are produced to influence the particles of the molten alloy. The particles of the molten alloy are deposited onto a collector in a spray forming operation to form an alloy ingot.

The invention relates to a one-step molding method of a titanium silicalite molecular sieve. The method comprises the following steps of crystallizing the titanium silicalite molecular sieve subjected to hydro-thermal synthesis; directly adding a matrix substance, a binder, a peptizing agent and a pore-enlarging agent without separating, washing and calcining; pulping; performing spray forming; and calcining the formed microspheres to remove a template agent to obtain large formed titanium silicalite molecular sieve particles which can be applied to ammoximation of cyclohexanone and epoxidation of olefin.

The invention discloses a metal molten drop ejecting device and a method for ejecting high-melting-point metal molten drops using the same. The metal molten drop ejecting device is used for solving the technical problem that the existing metal molten drop ejecting device is poor in stability in the ejecting forming process when ejecting high-melting-point light reactive metal molten drops. The metal molten drop ejecting device maintains stable ejecting of the high-melting-point metal molten drops by means of a nozzle automatic dredge device and an ejecting state detection system. The nozzle dredge device and a metal molten drop ejecting state monitoring and feedback system for high-melting-point metal ejecting are adopted; when the molten drop ejecting state monitoring and feedback systemdetects unstable ejecting state and transmits cleaning signals, an excitation rod is lowered, large positive or negative pressure is led into an inner channel of the excitation rod instantly, so thatmolten metal or gas at the position of a nozzle flows fast to bring out scale cinder or impurities adhered onto the inner wall of the spraying orifices, the aim of cleaning and dredging tiny nozzles can be achieved, and accordingly the ejecting forming process of high-melting-point metal molten drops is stable.

The invention provides a manufacturing method of high-vanadium high-cobalt high-speed steel, wherein, the composition weight percent of the high-speed steel is as follows: 1.1 percent to 2.18 percent of C, 5.0 percent to 8.0 percent of W, 4.0 percent to 6.0 percent of Mo, 3.0 percent to 5.0 percent of Cr, 1.2 percent to 8.3 percent of V, 6.5 percent to 11.5 percent of Co and the rest, Fe; the process steps of the high-speed steel includes master alloy preparation, spray forming, hot forging, quench tempering treatment, turning, milling and grinding or TiN / AlTiN coating treatment. The invention omits working procedures such as powder sieving, blending, encapsulation and cold and hot isostatic pressing, etc. and does not need costly equipment investment; moreover, the performance of the invention reaches to or even exceeds that of powder high-speed steel, thereby saving process cost and reducing the applied cost of the high-speed steel. The invention can be widely used in various cutters such as cutting tools for making difficult-to-machining material, and is particularly suitable to make cutters with quick-cutting, high hot hardness and long service life such as large-size broaching tool, gear shaver, hob and gear shaping tool for machining gear and various milling cutters used in digital control machine tool, etc.; moreover, the invention also can be used in making mould, etc.

The invention belongs to the technical field of rolled steel, and in particular relates to a manufacturing method of a spray formed high-vanadium high-speed steel composite roller. The high-vanadium high-speed steel comprises the following chemical components in percentage by mass: 1.7 to 1.8 percent of C, 1.2 to 1.6 percent of Si, 5.0 to 6.0 percent of Cr, 1.2 to 1.4 percent of Mo, 0.5 to 0.6 percent of Mn, 8.0 to 10.0 percent of V, and the balance of Fe; and the roller core is made of ball milling cast iron. The invention also discloses a preparation method of the radiation roller. The preparation method comprises the following steps of: preheating the roller core to a certain temperature by using an induction coil, simultaneously smelting the high-speed steel of the outer layer in a vacuum induction furnace, atomizing the high-speed steel molten metal flow by adopting a spray forming method and using nitrogen, and depositing the molten metal on the rotary roller core for compounding. The outer texture of the compound roller is uniform, rough eutectic carbides and texture segregation are eliminated, and good metallurgical combination is formed between the roller core and a spraylayer; and the spray formed compound roller has high hardness on the surface, good abrasion resistance, improved fatigue performance and longer service life, and has higher and better economic benefits as equipment is mature.

The invention provides a method and equipment for manufacturing and repairing a high-performance composite roll by laser spray forming, which uses laser spray forming to manufacture the transition layer and the working layer of the roll. It is characterized in that the specific method steps are as follows: A) removing the surface of the core of the roll B) Put the powder of the working layer material and the powder of the roller core into the powder feeding system respectively, and start the laser jet synchronous powder feeding through the surface of the roller whose stroke is controlled by the mechanical arm Direct metal Manufacture the intermediate transition layer of the roll; C) After one layer is deposited, the interlaced deposition is realized by changing the direction of the square spot and the movement direction of the mechanical arm; D) After the transition layer is formed, the spray forming on the surface of the transition layer is completely formed by the added The functional material constitutes the working layer. The invention uses a high-power short-wavelength laser as a processing light source and shapes the light spot of the laser into a rectangle, thereby effectively improving the quality of spray forming and increasing the processing speed.

The invention discloses high-hot-strength spray-formed hot work die steel and a preparation method thereof, belonging to the technical field of hot work die steel. The die steel comprises the following components of 0.3-0.5 of C, 3.0-5.0 of Cr, 1.5-3.5 of Mo, 0.4-1.0 of W, 0.3-0.8 of Si, 0.3-0.5 of Mn, 0.8-1.5 of V, 0.03-0.10 of Nb, less than or equal to 0.03 of S, less than or equal to 0.03 of P and the balance of Fe. The preparation method comprises the process routes of spray forming, hot forging and heat treatment; different comprehensive mechanical properties are obtained by adjusting the quenching and tempering temperatures in a way of controlling process parameters and hot forging temperature in the spray forming process, so that the requirements of different working conditions are met. The compatibility of alloy elements is reasonably optimized according to the characteristic of a spray forming process and the special requirement of the hot work die steel for high-temperature performance, so that the high-hot-strength spray-formed hot work die steel has favorable high-temperature performance, good heat stability and tempering resistance, relatively high impact toughness and excellent comprehensive performance, and the service life of the hot work die steel is greatly prolonged.

The invention provides apple-shaped hollow molecular sieve microspheres and a preparation method and application thereof. The preparation method includes: homogenizing a molecular sieve, a binder, a pore forming agent and water, and mixing colloidal grout with a surfactant for emulsifying to form a spherical emulsion under action of surface tension of the surfactant, wherein at the moment of sprayforming, the pore forming agent pyrolyzes at a point inside the spherical emulsion in a centralized manner to form a cavity from the surface to the inside of the microsphere emulsion, and in the process of spray forming, the cavity contracts to a certain degree to form macropores on the surface to be communicated with a hollow structure inside; combining with the subsequent calcining process to obtain large-grained hollow molecular sieve microspheres. Results of embodiments show that by the preparation method, hollow microspheres with macropores in the surface can be prepared, particle size distribution is 50-300um; hollow structure diameter reaches 10-150um, a macropore of 5-30um is formed in the surface of each molecular sieve microsphere, thickness of a shell layer reaches 10-80um, andthe shell layer is provided with mesopores of 70-200nm.

A spray forming pattern of a first metal having a melting point at a first temperature is formed. The spray forming pattern has a surface defining a cavity that has the shape of a master pattern. Steel particles having a carbon content in the range of 0.01-0.9% by weight are sprayed onto the spray forming pattern to form a deposit on the spray forming pattern. The deposit has a thickness of at least 0.5 inches and the temperature of the steel particles increases as the thickness of the steel deposit increases. The spraying conditions are controlled so that the steel particles coming into contact with the spray forming pattern results in a surface temperature of the spray forming pattern of less than about 80 DEG C. The deposit and the spray forming pattern are heated to a second temperature, which is higher than the first temperature, to melt the spray forming pattern from the deposit. The resulting deposit has the general shape of the master pattern.

The invention discloses a material increase manufacturing method based on high-speed spray forming of multi-material particles. According to the method, metal and ceramic particles are carried by means of certain compressed air and impact a substrate at a high speed after speeding up through a spray gun. When the speed of the particles exceeds a clinical depositing speed, the particles effectively deposit on the substrate or on the deposited and formed particles through mechanical impact. In the spraying forming process of the particles, the material particles do not melt, and accordingly selection of materials is not limited by melting points, and synchronous spray forming manufacturing of various materials can be achieved. A spray forming part has high compactness and can achieve unique mechanical, physical and chemical performance. Material increase manufacturing of three-dimensional functional parts which have complex space structures, controllable material distribution and micro structures is achieved through a multi-freedom-degree spray device. The process is simple, environmentally-friendly, low in energy consumption, strong in operability and capable of solving the difficult problem that multi-material functional parts with composite structures cannot be manufactured through a traditional quick forming process.

The invention discloses highly wear-resistant allumen. The invention is characterized in that according to the weight percentage, the allumen comprises the following components: 25 to 40 percent of Al, 1 to 5 percent of Cu, 1 to 10 percent of Si, and Zn as the residual. In the invention, spray forming and the hot extrusion method of multi-step accumulated deformation are utilized to achieve small size and even distribution of silicon grains which can not be achieved through common casting, and thereby the Zn-Al-Cu-Si alloy with good wear resistant property can be obtained.

The invention relates to a cocrystallization molecular sieve catalyst for aromatization, as well as a preparation method and application thereof. The catalyst comprises 35 to 75 wt% of a small grain rare earth-ZSM-5 / ZSM-11 cocrystallization molecular sieve, 1.0 to 6.0 wt% of ZnO, 0.5 to 5.0 wt% of P2O5 and the balance of aluminium trioxide and kaolin. The catalyst is prepared through the following steps of: mixing the rare earth-ZSM-5 / ZSM-11, a ZnO precursor, a P2O5 precursor, an aluminium trioxide precursor, kaolin and water uniformly, performing spray forming and roasting. The catalyst is applied to the catalytic conversion process of raw materials comprising low-carbon hydrocarbon, a coal-based or biologically based oxygen-containing compound, waste plastic and the like, and has the characteristics of high yield of aromatic hydrocarbon or high-octane-value gasoline component, high hydrothermal stability and regenerability of the catalyst and the like.

The invention discloses a microspherical ethylene oxychlorination catalyst preparation method, which comprises the following six steps: solution preparation; precipitation and reaction; peptization; active component and assistant component homogenization; spray forming; and post-treatment. Solution of an active component and solution of an assistant component are dissolved in peptized pulp; a proper amount of dispersant and pore-expanding agent are added into the pulped sol solution to ensure the active component and the assistant component are uniformly distributed in the sol solution; the dispersant can prevent active and assistant component deposition caused by the prolongation of spray time; and the added proper amount of pore expanding agent can expand formed pore passage with a microspherical structure in a spraying process of the sol solution so as to improve the volume of the pore passage of a catalyst carrier and improve the pore volume and specific area of the catalyst.

The invention provides a method for preparing an in situ crystallization type catalyst by adding components with a silicon-aluminum structure unit in a certain proportion. The method is characterized in that: kaoline with meso position grain diameter used as a raw material is added with water to form a pulp, the pulp undergoes spray forming to form an earth ball, and the earth ball is roasted to form a roasted earth ball. The roasted earth ball undergoes the crystallized reaction with sodium silicate, the components with the silicon-aluminum structure unit, a guiding agent and the like to from a crystallized product of which the content of NaY zeolite is between 15 and 60 percent and the silicon-aluminum ratio is 3.5-5.5; and the crystallized product is exchanged and roasted to obtain the catalyst needed. Because the components with the silicon-aluminum structure unit are used as sources of partial silicon, aluminum and sodium, the method has the advantages of realizing the preparation of the in situ crystallization type molecular sieve in a short period of time, further shortening flow, improving yield and lowering production cost.

The invention provides a method for precise spray forming and layer-by-layer rolling repair and manufacturing, which is used for rapidly and densely repairing and remanufacturing the surface of workpiece to be cladded. The method comprises the following steps: the surface of the workpiece to be cladded is cleared and / or processed; the surface of the workpiece to be cladded is induced and heated under the protection of inert gas; molten metal is atomized by high-pressure inert gas and sprayed and deposited on the surface of the workpiece to be cladded to obtain cladding metal, and the cladding metal is rolled layer by layer and thickened simultaneously; the workpiece clad by metal is mechanically processed and thermally treated and the workpiece processed by precise spray forming and layer-by-layer rolling repair or manufacturing is obtained. The invention also provides a device for spray forming and layer-by-layer rolling repair and manufacturing.

An elastomeric gel-filled prosthetic implant having a shell made of a single gel barrier layer. The barrier layer is formed of a homogeneous silicone elastomer capable of sterically retarding permeation of the silicone gel through the shell and having a bleed rate that is less than about 40% of the bleed rate of current shells which use a sandwiched construction with an internal barrier layer. Further, the barrier layer shell is made of a material that exhibits a wet strength that is comparable to or greater than current shells. The silicone elastomer may be a polydimethyl siloxane, and the substituted chemical group is a diphenyl group with a minimum mole percent of at least 13%. The implant may be designed for breast reconstruction or augmentation such that the shell is accordingly shaped. The shell wall thickness is at least 0.254 mm (0.010 inches), and desirably about 0.456 mm (0.018 inches). The implant shell may be made by dip-forming, spray-forming, or rotational molding. The exterior may be smooth or textured.

Methods and apparatus for producing large diameter superalloy ingots are disclosed. A material comprising at least one of a metal and a metallic alloy is introduced into a pressure-regulated chamber in a melting assembly. The material is subjected to a wide-area electron field within the pressure-regulated chamber to heat the material to a temperature above the melting temperature of the material to form a molten alloy. At least one stream of molten alloy from the pressure-regulated chamber is provided from the melting assembly and is fed into an atomizing assembly, where particles of the molten alloy are generated by impinging electrons on the molten alloy to atomize the molten alloy. At least one of an electrostatic field and an electromagnetic field are produced to influence the particles of the molten alloy. The particles of the molten alloy are deposited onto a collector in a spray forming operation to form an alloy ingot.

A modified faujasite is obtained by exchanging the faujasite with a phosphorus compound and an ammonium compound, and then introducing a rare earth solution into the exchange slurry for further reaction, filtering, washing, and roasting with water vapor. Mix the zeolite component, clay and the precursor of the high-temperature-resistant inorganic oxide uniformly in a certain proportion, spray molding, and washing. The prepared catalyst has good activity and stability, high gasoline yield, low coke yield, and heavy oil Strong cracking ability and heavy metal pollution resistance.

The invention relates to a spray forming system for preparing alloy and metal-based composite parts. The spray forming system is characterized in that: an intermediate frequency induction melting furnace, a transfer crucible, a high-pressure gas nozzle, a receiver, a three-dimensional workbench and an ultrasonic transducer tool head are arranged in a vacuum tank; the vacuum tank is connected witha vacuum machine through a pipeline, the side wall of the vacuum tank is provided with a feeding hole and a discharge hole, and the intermediate frequency induction melting furnace is fixed on a supporting plate through a melting furnace bracket and connected with a servo motor mechanism for controlling the movement of the intermediate frequency induction melting furnace; and the transfer crucible is arranged at the lower part of one side of the intermediate frequency induction melting furnace and connected with a diversion pipe through a threaded through hole in the bottom of the transfer crucible, and the ultrasonic transducer tool head is fixed on the fixed bracket. The spray forming system can effectively thin atomized granules and improve the metal yield, and is advanced and reliablein technical routes, low in production cost and easily controlled in product quality.

Methods, processes, and systems for producing bulk ceramics from agglomerations of partially cured gelatinous polymer ceramic precursor resin droplets, without using sponge materials to form gas pathways in the polymer bodies. Ceramics can be formed in hours. Resin droplets can be produced with a sprayer where liquid polymer precursors, mixed with a curing agent, are sprayed forming droplets which are partially cured, collected, and compressed into shapes. Ceramic porosity can be varied, droplet particle sizes can be controlled by adjusting liquid and gas pressure, orifice size, during spraying. Partially cured droplets can be formed via an emulsion process and size controlled by emulsion liquid and surfactant selection parameters.

The invention relates to a precision injection molding device and a method for realizing rapid mold manufacturing by using the device. The invention combines spray forming and mold rapid manufacturing technology to realize precision spray forming rapid mold making. The basic principle is to directly spray and deposit the molten and atomized metal liquid on the mold through the spray forming device, and deposit layer by layer to obtain the required mold cavity shape, size and surface quality. The present invention is a convenient and practical precision injection molding device with simple structure, convenient use, excellent performance, and the method for quickly manufacturing molds with the device can make the molds produced have good internal structure and excellent working performance, and the surface quality is good , high dimensional accuracy, low production cost, short cycle time and high production efficiency.

The invention relates to a dry inner-outer dual cycle fluidized bed desulphurization device and a method. The device comprises a flue gas intake mounted at the bottom of the inner cycle fluidized bed reaction tower, a desulfurizer nozzle, a diector nozzle and an air nozzle mounted at the bottom of inner wall; a cyclone is mounted between passing conduit for connecting the flue gas outlet and the dust collector conduit, the solid outlet of the cyclone is connect to a separating tank, of which the outlet on the top is connected to the inlet of the dust collector via the transport conduit, the cleanout door at the bottom of the dust collector is connected to the ash cellar, and the clear gas outlet of the dust collector is connected to the chimney. The flue gas with SO2 enter from the bottom of the thionizer, at the same time, powdery desulfurizer, air and water are sprayed form the bottom of the thionizer respectively, and they moves upwards together in the thionizer, when the SO2 reacts with desulfurizer to deprive the SO2 in the flue gas.

The invention discloses an electric-field-driving molten-metal-spray-forming 3D printing device and a working method thereof. The problems that the cost of metal 3D printing equipment and printing is high, and the resolution ratio is low are solved. A multi-sprayer technology, a coaxial-sprayer technology and the like are combined together, multi-scale and multi-material structurally integrated 3D printing of metal materials can be achieved. According to the technical scheme, the electric-field-driving molten-metal-spray-forming 3D printing device comprises a working table. A printing platform is arranged on the working table, a printing bed is arranged on the printing platform in an absorbed mode, a spraying unit is arranged above the printing bed correspondingly, and the spraying unit is connected with a Z-directional working table; the spraying unit comprises a printing sprayer, the printing sprayer comprises a nozzle and a material-storing barrel which are connected mutually, and the nozzle is connected with the positive pole of a high-voltage pulse power supply; the material-storing barrel is connected with a back pressure control unit and a print-material-supplying unit, and a first water-cooling unit is further arranged between the back pressure control unit and the material-storing barrel; and an electromagnetic induction sprayer heating unit is arranged on the outer portion of the printing sprayer, and the electromagnetic induction sprayer heating unit is connected with a second water-cooling unit.