62results about How to "Precision workmanship" patented technology

The invention discloses a method for replicating a metal relic with high fidelity, and the method comprises the following steps: (1) an original metal relic is scanned directly by utilizing a laser scanner and a three-dimensional (3D) model of the original metal relic is acquired by reverse engineering; (2) the real process of real investment shell casting is simulated by adopting a finite element method, and the 3D model is modified according to the simulation result (such as contraction); (3) according to the modified 3D model, an accurate wax model is produced by adopting a quick prototyping method; and (4) a shell is produced by utilizing the wax model and liquid metal is poured according to the best simulation technological parameters, thus obtaining the replication with high fidelity. In the method, the accurate wax model can be produced without touching the original relic, and therefore, the relic cannot be damaged; and the method also introduces reverse engineering, quick prototyping and casting process simulation technology into the replication of the metal relic, and compared with the traditional method, the produced metal relic replication has high fidelity and can achieve the effect of representing the relic verve.

The invention relates to a sand-containing colorful environment-friendly coating and a preparation method of the same. The coating is composed of a pigment component, a dispersion medium and varnish; the pigment component includes RO water, cellulose, a dispersant, pigments and fillers, a defoamer, a film forming additive, an emulsion, an anti-freeze agent, an inorganic protective glue solution, a pH regulator, a sterilizing agent, a first thickener, and natural colorful sands; the dispersion medium includes RO water, the film forming additive, a rheological agent, the emulsion, an organic protective glue solution, the defoamer and a coupling agent; and the varnish includes RO water, the emulsion, the pH regulator, the sterilizing agent, the defoamer, the film forming additive, the anti-freeze agent, and a second thickener. Compared with the prior art, the sand-containing colorful environment-friendly coating has good storage and construction stability, wherein a dried film of the coating is excellent in adhesion force and water resistant performance. The coating, when being used, has a good rough sense and has clear layer sense, thereby representing a texture effect of natural stone materials better.

The invention provides a display substrate, a preparation method of the display substrate, a display device, a preparation method of the display device and a display unit. The preparation method of the display substrate includes: providing a flexible substrate, wherein a display area and a circuit connection area are arranged on an upper surface of the flexible substrate, and a part, correspondingto the circuit connection area, of the flexible substrate is provided with a bending portion and a connecting portion; forming a groove in a lower surface of the flexible substrate, wherein an orthographic projection, of the groove, on an upper surface of the flexible substrate corresponds to the position of an orthographic projection, of the bending portion, on the upper surface of the flexiblesubstrate; arranging a backplate, an OLED (organic light emitting diode) luminescent device and a packaging structure successively in the display area on the upper surface of the flexible substrate, and arranging a circuit connection layer in the circuit connection area on the upper surface of the flexible substrate. By downwardly bending and extending the bending portion of the flexible substrate, the connecting portion is enabled to locate on the lower surface side of the flexible substrate.

The invention relates to a femtosecond laser manufacturing method for tunable phase change nanostructure super surfaces, and belongs to the technical field of femtosecond laser application. The femtosecond laser manufacturing method aims to solve the problem that in the current super-surface nanostructure processing process, the technology is complicated, and the shortcomings of accurate, efficient, orderly and large-area processing of nano structure units exist are solved. According to a femtosecond laser manufacturing method, the expected morphology of the nano structure is prepared in accurate, efficient, orderly and large-scope manner with the relatively-simple technology, instantaneous electronic excitation dynamics during action of femtosecond laser and phase-change material surfacesare regulated, modulation of the distance, the morphology, the phase state and the arranging manner of the nano structure units of the phase-change material super surfaces and large-format manufacturing and modification are achieved. Critical application values are achieved in the aspects of gradient super-surfaces, information storage, holographic imaging, electromagnetic wave manipulation, switchable or reconfigurable components and the like.

The invention relates to a glue spraying method, particularly to an intelligent high-speed contactless high-accuracy glue spraying method. The method includes establishing a corresponding mathematical model, and establishing a glue spraying vision algorithm and a machine vision system to provide a theoretical basis for the glue spraying method according to the forming principle of the glue spraying; collecting and processing images in motion to provide a dynamic positioning theoretical basis by using the geometric transformation technology; and measuring the glue spraying amount by using a precise weighing balance and a charge coupled device (CCD) visual positioning and measuring system to achieve closed-loop control for the glue spraying amount. According to the method, a CCD optical lens, a high-speed glue spraying valve, the precise weighing balance and a CCD measuring software are combined, a tri-axial motion platform is provided, the CCD optical lens is used for positioning components precisely, the high-speed high-accuracy glue spraying valve is matched, an on-line weighing or CCD measuring function is used for assistance, the glue amount is calibrated on line, the technical process of accurate glue spraying packaging can be achieved rapidly, quality of products is guaranteed, and the product percent of pass is improved.

The present invention provides a chip alignment mounting device. The chip alignment mounting device comprises a feed mechanism, a substrate carrying mechanism, a chip supply mechanism, a chip turnovermechanism and a chip bonding mechanism, the feed mechanism is configured to provide a substrate without mounting a chip and remove a substrate with a mounted chip; the substrate carrying mechanism isconfigured to load and fix the substrate and drive the substrate to move on a first plane; the chip supply mechanism is configured to provide the chip at the chip supply position on the chip supply mechanism; the chip supply mechanism can pick up the chip from the chip supply position, transmit the chip to a chip handover position through rotation motion and supply the chip to the chip bonding mechanism; the chip bonding mechanism is configured to pick up the chip from the chip handover position and mount the chip to a pre-determined mounting position through rotation motion; and the mountingoperation position, the chip supply position and the chip handover position are fixed positions. The present invention further provides a chip alignment mounting method. The chip mounting efficiencyand precision can be improved.

The invention discloses a capacitor guide pin and a manufacturing method thereof. The capacitor guide pin is composed of an aluminum wire and a tin-plated copper-clad steel wire. A part of the aluminum wire is punched to form a flat head, and another part of the aluminum wire is a cylinder located at the transverse center line of the flat head. A transitional portion is formed between the flat head and the cylinder and is in a square R shape. The flat head is an arc structure. The tin-plated copper-clad steel wire and the cylinder of the aluminum wire are soldered and have a solder joint therebetween in a truncated cone shape. The front end surface of the tin-plated copper-clad steel wire is a circular arc end face, and has a radius of a half of the diameter of the tin-plated copper-clad steel wire. The transitional portion is in a square R shape and has large bending strength so as to avoid damage and fracture during the assembly of a container. The flat head is an arc structure so asto reduce the probability of piercing the inner foil and improve product quality. The size and the appearance of the solder joint can be well controlled to avoid puncturing the rubber in the apertureor exposure after a rubber plug is inserted.

The invention relates to plant cell microspheres and particularly discloses plant cell microspheres and use thereof. The plant cell microspheres are characterized by being processed and manufactured on the basis of plant protoplasts, plant cells and plant sporopollen or pollen, wherein the protoplast-derived plant cell microspheres contain matrix, matrix channels, middle cavities, internal spheres and external pendants; the cell-derived plant cell microspheres contain outer walls, matrix, matrix channels, middle cavities, internal spheres and external pendants; and the sporopollen-derived plant cell microspheres contain outer walls, inner walls, matrix, matrix channels, middle cavities, internal spheres and external pendants. The plant cell microspheres of the invention can conduct sustained-release, controlled-release and other physical and chemical functions, and can naturally degrade after being used.

The invention provides a fuel gas generator. The fuel gas generator is composed of an injector, an eccentric turbulent flow ring, a spherical-cone-shaped combustion chamber and a three-way bent pipe. The injector is in a round cake shape, the whole injector is printed through a 3D printer, the upper half part of the eccentric turbulent flow ring is a cylindrical ring, the top face of the cylindrical ring is fixedly welded with the edge of the bottom face of a lower boss of the injector, the bottom edge of the side face of the cylindrical ring is fixedly welded with the hole wall of a side hole of the spherical-cone-shaped combustion chamber, and the lower half part of the eccentric turbulent flow ring is a conical ring with an eccentric opening. The spherical-cone-shaped combustion chamber comprises a spherical cavity and a cone cavity, a side hole is formed in the side face of the spherical cavity, an outlet is formed in the top of the cone cavity and fixedly welded with a middle inlet of the three-way bent pipe, the three-way bent pipe is integrally in a side T shape, a left port is formed in the left side of the three-way bent pipe, a flange structure connection mode is adopted, a right port is formed in the right side of the three-way bent pipe, a middle inlet is formed in the middle part of the three-way bent pipe, and a boss positioning form is adopted. The structure of the fuel gas generator is optimized, propellants can be efficiently atomized, mixed and combusted, and the combustion efficiency is improved.

The invention discloses a silicon-based inverted microstrip line structure and a manufacturing method therefor, and mainly solves the problems of high loss and low processing precision in millimeter wave and submillimeter wave transmission by a standard microstrip line and a conventional inverted microstrip line. The silicon-based inverted microstrip line structure comprises a microstrip line, a suspension layer, a silicon substrate, a cavity and a metal grounding layer, wherein the silicon substrate comprises an upper silicon substrate and a lower silicon substrate; and inverted layer is positioned on the upper surface of the upper silicon substrate; the microstrip line comprises a lower metal layer and an upper metal layer; the upper metal layer is fixed in the inverted layer; the lower metal layer is prepared on the lower surface of the upper metal layer and exposed in the cavity; the cavity is formed in the upper silicon substrate in an etching manner, positioned below the microstrip line and suspends the microstrip line; and the metal grounding layer is positioned below the cavity and embedded between the upper silicon substrate and the lower silicon substrate. The manufacturing method is high in processing precision, and a low-loss and simple-manufacturing millimeter wave transmission line structure is realized.

The invention provides a guide blade shaft sleeve assembling and disassembling tool. The guide blade shaft sleeve assembling and disassembling tool comprises a sleeve, a hollow jack, a lead screw anda chuck. The lower end of the sleeve is opened, the upper end of the sleeve is closed, the lower end of the sleeve abuts against a wear-resistant plate at the upper end of a bottom ring in a connection mode, and the sleeve comprises a holding space which is used for holding a shaft sleeve to be disassembled. The hollow jack and the sleeve are coaxially arranged, and the lower end of the hollow jack abuts against the top wall of the sleeve in a connection mode. The lead screw coaxially penetrates through the sleeve and the hollow jack, and the upper end of the lead screw is arranged above the hollow jack. A rotary twisting assembly which is used for driving the lead screw to move in the vertical direction is arranged at the upper end of the lead screw and abuts against the upper end of thehollow jack in a connection mode. The lower end of the lead screw is arranged below the hollow jack. The upper end of the chuck is connected with the lower end of the lead screw, and a clamping jaw assembly which can stretch out and draw back in the radial direction of the chuck is arranged on the periphery of the chuck and can be connected with an annular groove in the inner wall of the shaft sleeve in a clamped mode. The guide blade shaft sleeve assembling and disassembling tool is high in safety, accurate in technology and convenient and fast to operate, and the degree of the damage to theshaft sleeve is substantially reduced.

The invention provides a making method of a personalized beverage based on a capsule coffee system. The making method comprises the following steps: acquiring raw materials needed for making the beverage, accurately weighing the raw materials according to the proportion, then putting the weighed raw materials into a coffee capsule, and carrying out sealing; arranging a unique identification code which identifies raw material ingredients inside the coffee capsule on the outer surface of the coffee capsule, endowing the raw material ingredients with the corresponding process parameters, storingthe correspondence relationship in a storage of a capsule coffee machine, and thus one-to-one correspondence relationship between the raw material ingredients needed for making the personalized beverage and the process parameters is formed; displaying the name of the beverage and the corresponding raw material ingredients and process parameters for a user on a human-computer interaction interfaceof the capsule coffee machine; and responding to the selection operation of making one beverage of the user on the human-computer interaction interface, thus preparing the beverage. According to the method disclosed by the invention, the making of the personalized beverage is finished based on the intelligent capsule coffee making system, so that the user can easily obtain the personalized beverage adopting the accurate formula and the accurate process and meeting the requirements of the user.

The invention discloses a method for extracting superoxide dismutase from cattle and sheep blood largly industrially, comprising the following steps of: carrying out the production steps of anticoagulation, hypotonic hemolysis, ultrafiltration, fast temperature rise and reduction, sedimentation, three-stage temperature treatment, salting-out, ultrafiltration, concentration, freeze drying, and the like on fresh cattle or sheep blood so as to simultaneously obtain two groups of superoxide dismutase finished products which are slightly different in specific activity and purity, wherein the fast temperature rise and reduction is realized through an agitator with a heat/cold source; the first-stage temperature treatment is carried out at 45-55 DEG C, the second-stage temperature treatment is carried out at 55-60 DEG C, and the third-stage temperature treatment is carried out at 60-65 DEG C. Compared with the prior art, the invention has the advantages of simple process, short production period, high yield coefficient and specific activity of the products, stable quality, low cost, excellent economic benefit, and the like.

The invention relates to an anchor cable pressure bowl composite mould and belongs to the field of anchor cable pressure bowl production. The anchor cable pressure bowl composite mould comprises a base and an upper seat; guide columns are fixed to the base; a lower mould is installed at the middle part of the base; a supporting seat is fixed to the lower mould; a cylindrical sinking groove is formed in the lower mould; a bulged shaft is integrally formed in the middle part of the sinking groove; the top surface of the bulged shaft is an arc-shaped surface; an inner ring groove is formed in thecenter of the top surface of the bulged shaft; sleeves fitting with the guide columns are fixed to the upper seat; an upper mould seat is fixed to the lower surface of the upper seat; an upper punching mould is fixed to the lower side of the upper mould seat; a punching rod is integrally formed in the upper punching mould; an upper sleeve mould is fixed to the lower side of the upper punching mould; a circular hole where the punching rod penetrates through is formed in the middle part of the upper sleeve mould; and a concave bowl-shaped cavity is formed in the lower surface of the upper sleeve mould. Through up-and-down squeezing and cutting, punching forming is carried out at one time; the anchor cable pressure bowl composite mould is concise in technology, low in labor intensity, safe,reliable, high in production efficiency and low in production-manufacturing cost; and the anchor cable pressure bowl composite mould is accurate in technology and high in finished product rate, so that the amount of waste pieces can be reduced substantially.