57results about How to "High manufacturing stability" patented technology

A method for forming a three dimensional article through successively depositing individual layers of powder material that are fused together with an electron beam from an electron beam sources so as to form the article. Providing a model of said three-dimensional article; a vacuum chamber having at least a first and a second section, powder material that are fused together is provided in said first section, at least one electron beam source is provided in said second section, wherein said first and second sections are openly connected to each other. Directing an electron beam from said at least one electron beam source over said work table to fuse in first selected locations according to said model to form a first cross section of said three-dimensional article while supplying a gas to said second section of said vacuum chamber.

The invention relates to a gadolinium-containing sintered neodymium-iron-boron rare earth permanent magnet alloy and a preparation method thereof. The permanent magnet alloy comprises components in the following formula: Re[alpha]Gd[beta]B[gamma]MxNyFe[100-alpha-beta-gamma-x-y], wherein the weight percentage beta of the gadolinium element is more than 0.50 and less than or equal to 25. Through the method for adding the Gd element into a sintered Nd-Fe-B magnet, a sintered Nd-Fe-B permanent magnet with high coercive force and high temperature resistance is prepared. The coercive force temperature coefficient beta of the prepared magnet is reduced, so the coercive force of the magnet at high temperature is improved and the magnet has the high temperature resistance.

A pixel structure of an organic light emitting display device includes a substrate and a plurality of display pixel units disposed on the substrate. Each of the display pixel units includes a first sub-pixel, a second sub-pixel and a third sub-pixel disposed adjacently to one another. The first sub-pixel in each of the display pixel units is disposed adjacently to three first sub-pixels respectively disposed in three adjacent display pixel units to form a first pixel unit. The second sub-pixel in each of the display pixel units is disposed adjacently to three second sub-pixels respectively disposed in three adjacent display pixel units to form a second pixel unit. The third sub-pixel in each of the display pixel units is disposed adjacently to three third sub-pixels respectively disposed in three adjacent display pixel units to form a third pixel unit.

As shown in Figs. 4(a)-4(e), a plurality of semiconductor devices (142) and passive devices (144) are fixed to a base (140), then an insulating resin film (123) with conductive film composed of a conductive film (120) and an insulating resin film (122) is pressed against the base (140) so that the semiconductor devices (142) and the passive devices (144) are pushed into the insulating resin film (122), and the base (140) and the insulating resin film (123) are contact-bonded under vacuum or a reduced pressure. Following that, the base (140) is separated from the insulating resin film (122), and a via (121) is formed and the conductive film (120) is patterned. Consequently, there can be obtained a structure (125) wherein one side of each semiconductor device (142) and passive device (144) is sealed with the insulating resin film (122) while the other side of each device is exposed.

The invention discloses a polymer solution-based magnetofluid self-assembly needle-free electro-spinning device which comprises a groove. The device further comprises a controllable magnetic field generation module, a high-voltage electric field generation device, a conductive fiber receiving device used for collecting cellosilk, and at least one conductive and magnetic conductive cone tower. The surface of the cone tower is provided with a threaded groove ascending spirally along the cone tower. The polymer solution-based magnetofluid self-assembly needle-free electro-spinning device is simple in structure, operation is controllable and easy to control, and processing efficiency is high. Meanwhile, the invention further provides a nanofiber electro-spinning method achieved through the needle-free electro-spinning device. According to the method, the aim of controlling jetting of polymer solution-based magnetofluid is achieved by controlling electric and magnetic fields. The method is controllable, easy to control and good in control accuracy.

The invention provides a metal hip joint prosthesis with a porous layer structure. The metal hip joint prosthesis comprises an acetabulum outer cup, an acetabulum lining, a femoral ball head and a hipjoint femoral stem, wherein the hip joint femoral stem comprises a femoral stem neck part, a femoral stem near end and a femoral stem far end; the upper end of the hip joint femoral stem neck part issleeved by the femoral ball head in cooperation with the acetabulum lining for use; the acetabulum outer cup sleeves outside the acetabulum lining; the contact surfaces of the metal hip joint prosthesis and host bone tissue are of porous structures similar to human bone trabecula in three-dimensional communication; the metal hip joint prosthesis specifically comprises the hip joint femoral stem with a pore layer and the porous acetabulum outer cup; the femoral stem far end is of a whole or surface porous structure; and the pore diameter of the pore layer of the femoral stem far end is smallerthan the pore diameter of the pore layer of the femoral stem near end. The invention also discloses a method for preparing the hip joint femoral stem and the acetabulum outer cup by integrated molding with a 3D printing technology. The metal hip joint prosthesis with the porous layer structure provided by the invention facilitates ingrowth of new bone tissues, and reduces the risk that a pore layer prepared through a surface treatment method is prone to falling off.

In order to provide a manufacturing method of a semiconductor device which can improve the interconnection lifetime, while controlling the increase in resistance thereof, and, in addition, can raise the manufacturing stability; by applying a plasma treatment to the surface of a copper interconnection 17 with a source gas comprising a nitrogen element being used, a copper nitride layer 24 is formed, and thereafter a silicon nitride film 18 is formed. Hereat, under the copper nitride layer 24, a thin copper silicide layer 25 is formed.

The invention discloses a preparation method of a hemoglobin coloring agent. The preparation method of the hemoglobin coloring agent comprises the steps that firstly, a hemoglobin water solution is extracted from fresh blood of livestock and poultry; secondly, arginine or lysine is added to the hemoglobin water solution, so that the mixed solution is obtained, wherein the ratio of the arginine or the lysine in the mixed solution is 4-12 mg / mL, and the pH value is adjusted to be 9.5-12; and thirdly, the mixed solution is dried. In the preparation process, the arginine or lysine is added, the arginine or lysine is used as an antioxidant and can protect hemoglobin, and therefore the hemoglobin can be kept in bright red. According to the preparation method of the hemoglobin coloring agent, the best technological conditions for preparation of hemoglobin high in stability are determined, and the basis is provided for mass production and processing. The prepared novel hemoglobin coloring agent product has good stability in different concentrates of NaCl and solutions of different gradients of pH.

A keycap and a method of manufacturing the same are disclosed. The method is to injection-mold a cap with a layer structure of ink thereon by an in-mold transfer method; then, to form a pattern on the layer structure of ink by a high energy optical engraving method; and at last, to form a light-permeable protection layer on the layer structure of ink to cover the pattern. The keycap according to the invention is therefore obtained. Therefore, the invention can reduce the manufacturing time relatively to a conventional keycap with a pattern formed thereon, such as a keycap for backlight keyboard. Furthermore, the invention can improve the binding strength between the layer structure of ink and the cap by use of the in-mold transfer method.

The invention relates to the technical field of nano-materials, in particular to a preparation method of a Co9S8 / MoS2 multilevel structure composite material. The preparation method includes: 1) dissolving an organic ligand in an aqueous solution containing molybdenum and cobalt to prepare a precursor solution, then carrying out oil bath heating reaction on the precursor solution, and then performing filtering to obtain a CoMo-MOF material; 2) dispersing the obtained CoMo-MOF material in an organic solvent to prepare a dispersion liquid, then carrying out hydrothermal reaction on the dispersion liquid, then performing filtering, and conducting cleaning and drying to obtain CoMo-S powder; and 3) placing the CoMo-S powder in a reducing atmosphere for high-temperature calcination to obtain the Co9S8 / MoS2 multilevel structure composite material. The preparation method provided by the invention is concise and efficient, has low equipment requirements, and is easy to realize industrial production; the preparation stability is high, the size and the morphology of the product can be effectively controlled in each step, and the structural stability and the size uniformity of the product aremaintained.

The invention relates to an optical component including an optical fiber with a lens constituted by a single-mode optical fiber and a graded index optical fiber and a method of manufacturing the same. The invention provides an optical component in which an optical fiber with a lens can be accurately mounted on a substrate and which has high performance and highly stable manufacturability. An optical component has three V-shaped grooves for disposing optical fibers. An optical fiber with a lens is disposed in each of the V-shaped grooves. The optical component has a positioning mark using for positioning optical fiber connecting surfaces. The positioning mark extending across the V-shaped grooves in an orthogonal relationship therewith is provided. The positioning mark is formed line a concave groove and is visually perceived as two parallel straight lines when viewed in a direction normal to the surface on which the V-shaped grooves are formed. The optical fiber connecting surfaces are positioned between the two parallel straight lines.

This invention provides a kind of sintered lanthanon permanent magnet alloy and its manufacturing method. The sintered lanthanon permanent magnet alloy is sintered Nd-Fe-B permanent magnet, including antiferromagnetism transition series element Cr or Mn. Its magnetism performance parameter bounds are: the residual magnetism is no more than 1.1 T, the magnetic energy accumulate is 10 - 30 MGOe, coercive force after anneal heat treatment are no less than 15 kOe. The Nd-Fe-B permanent magnet provided by present invention has such advantages as low cost, good product uniformity, high manufacturing stability, simple manufacturing method, and needn't change the present Nd-Fe-B manufacturing equipments, is easy for controlling and large-scale industrialization manufacturing.

An ultrasonic oscillator unit including an ultrasonic oscillator array in which a plurality of ultrasonic oscillators are arranged; an electrode part having a plurality of electrodes electrically connected to the plurality of ultrasonic oscillators, respectively; a circular-arc backing material layer disposed on a rear surface of the ultrasonic oscillator array; three or more wiring boards electrically connected to the plurality of electrodes of the electrode part; and three or more connectors to which a plurality of cables are connected, respectively. The three or more wiring boards are respectively mounted to the three or more connectors and electrically connect the plurality of electrodes of the electrode part to the plurality of cables. The three or more connectors are arranged on a rear surface side of the backing material layer in a width direction.

The purpose of the present invention is to provide a repair / modification method for metallic substrates that is capable of reducing both defects and regions of interface in the interior of a structural body by means of modifying the arrangement deep into the interior of a structural body while preventing impurities that, for example, originate with a probe on a friction stir welding tool from being mixed into the interior of the structural body. The repair / modification method for metallic substrates pertaining to the present invention involves: a step for preparing a metallic substrate havinga first region that is divided in the in-plane direction of the substrate and contains a defect and / or a structurally discontinuous part; and a step for repairing the defect and / or modifying the structurally discontinuous part by causing a probeless friction tool to be rotatingly pressed against the surface of the first region, thereby generating frictional heat while pressing on the surface.

Provided is a pharmaceutical preparation composition comprising a polymerized camptothecin derivative which is obtained by bonding a camptothecin derivative to a polymer carrier, and has nanoparticle-forming properties of associating in an aqueous solution, the pharmaceutical preparation composition having enhanced preparation stability. Particularly, a pharmaceutical preparation maintaining nanoparticle-forming properties, which are an important factor, and having an excellent storage stability is provided.Disclosed is a pharmaceutical preparation comprising a block copolymer in which a polyethylene glycol segment is linked to a polyglutamic acid segment containing a glutamic acid unit having a camptothecin derivative bonded thereto, the pharmaceutical preparation capable of forming associates in an aqueous solution. When the pharmaceutical preparation is made into an aqueous solution containing the camptothecin derivative at a concentration of 1 mg / mL, the pH of the aqueous solution is 2.4 to 7.0, and the change ratio of the associate-forming ability of the pharmaceutical preparation after storage at 40° C. for one week under light-blocked conditions is 50% or less.

The invention relates to a composite bonded rare earth permanent magnetic material which comprises neodymium iron boron magnetic powder, ferrite magnetic powder, alnico magnetic powder, teflon, propyl gallate, a binding agent and a coupling agent. The rare earth permanent magnetic material is improved on the aspects of mechanical performance and coercivity and is low in cost, high in manufacturing stability and simple in manufacturing method, and large-scale industrial production can be easily achieved.

A radiation-sensitive resin composition comprising an acid-labile group-containing resin obtained by living radical polymerization having a specific structure which is insoluble or scarcely soluble in alkali, but becomes alkali soluble by the action of an acid, and a photoacid generator, wherein the ratio of weight average molecular weight to number average molecular weight (weight average molecular weight / number average molecular weight) of the acid-labile group-containing resin is smaller than 1.5.

The invention relates to a high-performance rare earth permanent magnet material which comprises, by weight, 20-35% of rare earth elements, 0.8-1.5% of boron, 0.02-0.2% of magnesium, 0.5-5% of manganese, 0.1-3% of titanium, 0.02-0.5% of nickel, 0.02-0.5% of cadmium, 0.5-5% of aluminum, inevitable impurities and the balance ferrum. The mechanical performance and coercive force of the rare earth permanent magnet material are greatly improved, the cost is low, the manufacturing stability is high, the manufacturing method is simple, and large-scale industrial production is easy to achieve.

Disclosed are an apparatus for preparing a polymer latex resin powder in which an efficiency of mixing of steam, a latex, and a coagulant is increased by introducing a non-continuous screw into a reactor that performs coagulation and aging and thus a moisture content of a slurry is decreased and, accordingly, drying efficiency may be enhanced, and a polymer latex resin powder with excellent color and powder characteristics may be prepared using a decreased amount of coagulant and a method of preparing a polymer latex resin powder by using the same.

The invention relates to a preparation method of a catalyst for producing maleic anhydride. The preparation method mainly solves the problem that the existing catalyst has a small specific surface area and poor hydrocarbon selective oxidation reaction catalytic performances. Through preparation of VOPO4.2H2O and an intercalation reaction with an organic structure, an intercalated VOPO4 compound with an adjustable structure is obtained. Through organic alcohol reduction and roasting activation in a high-pressure synthesis kettle, the active vanadium-phosphorous oxide catalyst is obtained. The preparation method well improves the prior art and can be used for the selective oxidation of gaseous hydrocarbons to produce maleic anhydride.

The invention discloses steel for 3.5 Ni and a production method thereof, and relates to the technical field of steel production, and the steel comprises the following chemical components in percentage by mass: 0.030%-0.080% of C, 0.10%-0.30% of Si, 0.50%-0.90% of Mn, less than or equal to 0.005% of P, less than or equal to 0.002% of S, less than or equal to 0.0050% of residual Nb, less than or equal to 0.003% of residual V, less than or equal to 0.005% of residual Ti, 3.30%-3.70% of Ni, 0.05%-0.20% of Cr, 0.05%-0.20% of Mo, less than or equal to 0.050% of Cu, 0.020%-0.050% of Al, 0.0008%-0.0020% of Mg, less than or equal to 0.0060% of N, less than or equal to Through a series of process improvements of smelting, rolling, heat treatment and the like, the process problem of intergranular cracks of the steel grade is solved, the advantage of batch smelting and manufacturing of the steel grade is obtained, the manufacturing stability is greatly improved, and the manufacturing cost is greatly reduced.

The invention relates to the technical field of metal additive manufacturing, in particular to an additive manufacturing method of an integrated injector. The additive manufacturing method is selective laser melting forming, and the forming method comprises the implementation steps of: determining a support adding part; designing a supporting structure; forming a printing model; selecting forming parameters for program subdivision, and selecting entity support, block support, surface layer and entity forming parameters of the injector for program subdivision; importing into a printer, namely importing a program package endowed with the forming parameters into the printer; filling the printer with powder raw materials, and installing a scraper; conducting gas washing on a printing bin, and introducing atmosphere into the printing bin for gas washing; and starting the printer, spreading powder by a scraper, and carrying out printing. According to the additive manufacturing method, the safety problems of high requirement on welding precision, strict requirement on sealing effect, easy occurrence of deformation and incoordination, leakage and the like in a manufacturing method for forming an assembly by a plurality of parts through assembling, welding and the like in an injector structure are solved.

The invention provides a space ring, an optical lens and an assembly method of the optical lens, wherein the space ring comprises a space ring body and is further provided with at least one co-assembly part. The space ring body forms a light-transmitting space and is further provided with at least one co-installation part, an operation device supports the space ring body through the co-installation part, and the space ring body is installed on a lens cone. The operation device supports the space ring body through the co-installation part in a clamping or supporting fixing manner, and the spacering is installed between the two optical lenses in the lens cone through the operation device. When the space ring is clamped, because the space ring is supported by the plurality of stable triangles, the space ring is clamped very stably, and the space ring is prevented from being scraped with the side wall of the lens randomly during the process of being installed into the lens cone to generate dross so as not to influence the internal cleanliness of an optical system.

The invention discloses a large-area patterned micro-nano particle self-assembly structure and a preparation method thereof, and the method comprises the following steps: (1) adding a dispersion liquid containing hydrophobic micro-nano particles into water so as to form a micro-nano particle film on a liquid-gas interface; (2) transferring the micro-nano particle film to the patterned template; (3) forming an adhesion layer on a substrate, then transferring the patterned template with the micro-nano particle film obtained in the step (2) to the substrate containing the adhesion layer, applying pressure, wherein the micro-nano particle film makes contact with the adhesion layer; and (4) removing the adhesion layer on the outer edge of the structure obtained in the step (3) so as to obtain the large-area patterned micro-nano particle self-assembly structure. Therefore, the method has the advantages that the preparation speed is high, the area of the prepared patterned micro-nano particle self-assembly structure is large, the preparation precision is high, the shape controllability is high, and the preparation stability is high.

A thin fan includes a frame and a driving device disposed in the frame. The driving device includes a stator structure and a rotor structure. The stator structure includes a stator pole group and a base body connected to the frame. The stator pole group is disposed on the outer periphery of the base body. The rotor structure is disposed corresponding to the stator structure, and includes a rotor shell, a magnetic structure and an impeller connected to the rotor shell. The center of the rotor shell is formed with a cylindrical shaft, which deeply penetrates into the base body. The rotor shell and the shaft are a single component manufactured by processing a single material workpiece. The magnetic structure is disposed on the inner wall of the rotor shell, and the stator magnetic pole group magnetically drives the magnetic structure as well as the rotor shell to rotate.

The invention discloses a manufacturing process and application of a flexible Raman enhanced intelligent sensing device suitable for rape crops. According to the method, the flexible Raman enhanced intelligent sensing device is manufactured according to the following seven processes: silicon nano grating template manufacturing, surface hydrophobization treatment on the silicon nano grating template, flexible Raman enhanced intelligent sensing device mold manufacturing, flexible nano grating substrate material preparation, flexible nano grating substrate manufacturing, flexible nano grating polymer substrate stripping and precious metal film layer manufacturing, a surface plasma resonance effect is formed through a flexible nano grating polymer substrate and a precious metal film on the upper surface of the flexible nano grating polymer substrate, a local electric field of a sensing area is enhanced, and Raman enhancement is achieved through an enhanced electric field. The method has the advantages of being high in preparation stability, low in cost and capable of achieving large-scale production. The method can be applied to the field of oilseed rape crops, including accurate sensing and high-sensitivity detection of information such as sclerotinia rot of oilseed rape.