128results about How to "Ensure process stability" patented technology

The invention, belonging to the technical field of crystallized film growth, particularly provides a pallet device for bearing processed substrates. The ballet device comprises a plurality of pallets arranged laminatedly along with a length wise direction, and certain space exists between adjacent pallets. In addition, the invention further provides a crystallized film growth device, comprising a process cavity, a process gas conveying system and an exhaust system, wherein the process cavity is provided with the pallet device for bearing the substrates in the process. The pallet device and the crystallized film growth device having the pallet device can increase the number of the substrates processed by the process at every time with low cost and increase the productivity.

The invention provides a metal laser selective melting method. The metal laser selective melting method is characterized in that two kinds of lasers with different powers are adopted for conducting laser melting on metal powder zones needling to be melted; during melting, the lasers with the low power firstly conduct scanning on outline boundaries of the metal powder zones; then the lasers with the high power conduct scanning on internal zones of the metal powder zones; and during scanning, the thickness of a metal powder layer obtained by scanning with the lasers with the high power one time is integral multiples of the thickness of the metal powder layer obtained by scanning with the lasers with the low power one time. According to the metal laser selective melting method, the efficiency of the laser molding process is improved, and meanwhile, the surface quality of a metal part is guaranteed; and in other words, while the stability and the molding quality of the overall process are guaranteed, the building speed of metal laser selective melting equipment is improved as a whole.

The invention discloses a 3D mold overlaying intelligent robot. The 3D mold overlaying intelligent robot comprises two X-axle cross beams; two Y-axle cross beams are mounted between the top surfaces of the two X-axle cross beams, and are driven to move along the X-axle cross beams through respectively independent transmission devices; Z-axle vertical guide rails are respectively mounted on the two Y-axle cross beams, and are driven to move along the Y-axle cross beams through Z-axle transmission devices; a welding head is slidingly mounted on the Z-axle vertical guide rail of one Y-axle cross beam; a welding destressing device is mounted on the Z-axle vertical guide rail of the other Y-axle cross beam, and comprises a high-frequency hammering device and a dust sucking device; and a constant-temperature mold heating device is mounted below the middle of the two X-axle cross beams. The 3D mold overlaying intelligent robot guarantees the temperature in the welding process, improves the welding quality, reduces the influence on the welding precision by higher temperature, adopts the welding destressing device to remove slag to guarantee the flatness after welding, and can be used for repairing a mold and printing a new mold.

Disclosed is a setting method of revolutions per minute on a real time of a rotating cutting tool, and a control device, and more particularly, a vibration characteristic is consistently evaluated and analyzed when a cutting process is in progress to suppress and avoid suppression.

The present invention provides an SOS wafer comprising a non-transparent polysilicon layer provided on a back surface of a sapphire substrate, a silicon nitride layer which protects the polysilicon layer, and a stress relaxing film which cancels stress produced in the silicon nitride layer, wherein the silicon nitride layer and the stress relaxing film are provided on the back surface side.

In a split gate type flash memory device, and a method of manufacturing the same, the device includes a memory cell array having a memory cell uniquely determined by a contact of a corresponding bit line and a corresponding word line, a floating gate formed on a semiconductor substrate to constitute the memory cell, the floating gate having a horizontal surface parallel to a main surface of the substrate, a vertical surface perpendicular to the main surface of the substrate, and a curved surface extending between the horizontal and vertical surfaces, a control gate formed over the curved surface of the floating gate in an area defined by an angle range of less than 90° between an extension line of the horizontal surface and an extension line of the vertical surface, and source and drain regions formed in an active region of the substrate.

The invention discloses a display panel, a manufacturing method and a display device thereof. The manufacturing method comprises the following steps: forming a pattern of a polysilicon layer on a substrate; Forming a first insulating layer over the polysilicon layer; Forming a semiconductor oxide layer over the first insulating layer and forming a first metal layer over the semiconductor oxide layer; patterning The semiconductor oxide layer and the first metal layer by the same patterning process; Forming a second insulating layer over the first metal layer; patterning The first insulating layer and the second insulating layer by the same patterning process; forming A pattern of source and drain electrode layers over the second insulating layer. By providing a protective layer, the secondactive layer exposed at the second via hole can be protected, so that the first via hole and the second via hole can be fabricated by the same patterning process, the primary patterning process is saved, the process stability is ensured, the number of patterning processes and the number of mask plates are reduced, and the manufacturing cost is reduced.

The invention discloses a welding method for a multi-part structure of a head injector in a thrust chamber of a liquid-propellant rocket engine. According to the method, welding for the head injector in the thrust chamber of the liquid-propellant rocket engine is completed through welded part machining, welding reference machining for nozzle units, welded part pre-treatment, welded part assembly, welded part welding, nozzle unit welding, welding joint detection and drying. According to the method disclosed by the invention, a welding process method for a complex injector structure is optimized to be vacuum electron beam welding adopting a welding method which is more advanced, higher in reliability, higher in welding quality and lower in welding risk from traditional braze welding; and moreover, repair welding is hardly carried out once the traditional braze welding is failed, and local repair welding can be carried out in the vacuum electron beam welding, so that the product scrap risk is lowered.

The invention discloses Q&P steel with a gradient structure. The Q&P steel comprises, by weight percent, 0.14-0.29% of C, 1.1-2.8% of Si, 1.8-3.0% of Mn, 0.5-1.9% of Cr, 1.5-3.1% of Al, smaller than or equal to 0.01% of S, smaller than 0.01% of P and the balance Fe. A manufacturing method of the Q&P steel includes the steps of austenitizing, carburizing, quenching, tempered carbon distributing and quenching. According to the Q&P steel and the manufacturing of the Q&P steel, technology stability and organization gradient can be ensured in production of large-size products, strength of the steel is improved, good toughness of the steel is also ensured, and low alloying cost is low.

Provided are a method of fabricating a polycrystalline silicon thin film using high temperature heat generated by Joule heating induced by application of an electrical field to a conductive layer, which can ensure process stability at high temperature and thus processing time can be reduced and a polycrystalline silicon thin film having excellent crystallinity can be obtained, a polycrystalline thin film using the method and a thin film transistor including the polycrystalline thin film. The method includes providing a substrate, forming a metal or metal alloy layer having a melting point of 13000 C or more on the substrate, forming an insulating layer on the metal or metal alloy layer, forming an amorphous silicon (a-Si) thin film, an amorphous/polycrystalline composite silicon thin film, or a poly-Si thin film on the insulating layer, and applying an electrical filed to the metal or metal alloy layer to induce Joule heating and generate high temperature heat, and crystallizing and annealing the amorphous silicon (a-Si) thin film, the amorphous/polycrystalline composite silicon thin film, or the poly-Si thin film using the high temperature heat.

The invention relates to a method for pre-stretch bending of a metal thick slab and numerical control machining forming of a high-rib wallboard with curvature, and mainly solves the problems that residual stress is high, the streamline of a molded surface is poor, deviation between an actual curved surface shape and a theoretical shape is large and the like in the conventional forming method. The method mainly comprises the following steps of: the pre-stretch bending of the metal thick slab, and the numerical control machining forming of the high-rib wallboard with the curvature. The method aims to greatly reduce the workload of the subsequent assembly process, improve production efficiency and whole quality and prolong service life. The residual stress in the slab is controlled by stretching and bending deformation modes in the pre-stretch bending process, so that the shape of the slab is approximate to the curved surface shape of the wallboard; the release process of the residual stress is controlled, and new residual stress is not generated or a little new residual stress is generated by controlling numerical control machining environment, process and parameters in the wallboard forming process, so that the forming quality of the wallboard is ensured; and numerical control machining is used as the final process of wallboard production in the method, so that product quality and process stability can be ensured to a great extent, and the designed theoretical shape of the wallboard can be ensured to the greatest extent.

The invention discloses a preparation method of a ceramic-based electronic circuit, comprising the following steps: firstly, a ceramic matrix is prepared by using a conventional ceramic powder; then,a surface protective layer is deposited on the surface of the ceramic matrix; and a three-dimensional shape of the electronic circuit is engraved on the surface of the ceramic matrix by using a laserdevice; the ceramic matrix is immersed in a surface modifier liquid colloid to completely remove the residual surface protective layer; and finally, the electronic circuit itself is prepared by a conventional chemical plating and/or electroplating process. By optimizing combinational design of laser output power, laser engraving line spacing, engraving times and the engraving pattern, the surfaceof the ceramic matrix in the laser engraving area is roughened, thus being beneficial to interface bonding of the electronic circuit and the ceramic matrix and simultaneously reducing chippings generated during the engraving process to the maximum.

The invention provides an X-ray detection device with a laser positioning function. A laser positioner is mounted at a pipe head at the upper end of a circumferential X-ray emitter which is fixed on a lifting table through a ray emitter clamping mechanism by a semicircular structural pressing ring; fixed legs and movable legs at the upper ends of telescopic hinges are connected with the lifting table; fixed legs at the lower ends of the telescopic hinges are connected with a mounting base, and movable legs at the lower ends of the telescopic hinges are connected with a rolling shaft screw rod and a sliding rail on the mounting base; a connection rod mounted between the rolling shaft screw rod and the sliding rail is used for connecting the movable legs at the lower ends of the telescopic hinges; a mobile limiting block is mounted on the rolling shaft screw rod; a driving motor drives the rolling shaft screw rod to rotate through a gear; a steering wheel, a pushing handle, the driving motor and a control box are fixed on the mounting base. According to the X-ray detection device with a laser positioning function, the problems that a conventional circumferential X-ray detection device is heavy in structure and short in effective travel and the problems that annular ray beams are easily shaded and are hard to position are successfully solved; the X-ray detection efficiency and detection quality of the X-ray detection device are effectively improved.

The present invention provides a modeling method for a smart prognostics and health management system. The method comprises a new tree establishing step, a dual-branch modeling step, and a model adaptive optimization step. As monitoring data increases, a golden model can be selected as a benchmark for optimization decision from prediction hypothesis models constructed by the dual-branch modeling step. This benchmark is used for next prediction. A prediction result of the system is caused to meet an expected target value. The present invention provides a computer program product for the smart prognostics and health management system at the same time. The above-described modeling method for the smart prognostics and health management system is completed when the computer program product is executed.

The invention relates to a sintered flux for filament swinging submerged arc surfacing of a continuous casting roller and a preparation method for the sintered flux. The preparation method comprises the following steps of: screening each ingredient by using a screen of 20 meshes; adding 15 to 25 percent of MgO, 20 to 30 percent of Al2O3, 25 to 35 percent of CaF2+CaO, 5 to 10 percent of SiO2, 5 percent of ZrO2, 2 to 5 percent of Na3AlF6, 0 to 3 percent of metallic Mn, 0 to 3 percent of Cr2O3, 0 to 4 percent of TiFe, 0 to 4 percent of CaCO3 and 0 to 3 percent of No. 45 SiFe into a powder mixing powder, and mixing; slowly adding neutral potash water glass into the prepared mixed powder, humidifying uniformly, granulating and roasting; and sintering at the temperature of between 800 and 950 DEG C, cooling, and thus obtaining the sintered flux. The sintered flux used for filament swinging submerged arc surfacing by matching a nitrogen alloyed 0Cr13Ni4MoN(414N) flux-cored wire can realize surfacing repair of the continuous casting roller.

The invention discloses a processing technology of a glass bottle. The processing technology comprises the following steps: (1) treating broken glass; (2) mixing raw materials: weighing the following raw materials in parts by weight: 50-80 parts of powder particles, 40-60 parts of calcite, 30-40 parts of albite, 10-20 parts of fluorite, 5-10 parts of borax, 2-6 parts of sodium carbonate, 1-5 parts of table salt, 0.1-0.8 part of magnesium sulfate, 0.01-0.05 part of cobalt powder and 0.6-1.8 parts of a compound clarifying agent, and evenly mixing and stirring the weighed raw materials to obtain a mixture; (3) molding by sintering; (4) annealing; (5) performing plate-making and printing; (6) tempering the glass bottle. The processing technology of the glass bottle can eliminate the pressure in a glass bottle body, thus avoiding the phenomenon of bursting caused in a production process and the phenomenon of cracking caused in a later use process; furthermore, the processing technology simplifies a coating operation process and increases the tightness of a coating layer; the glass bottle produced by using the processing technology is bright in color, high in light transmittance and long in service life.

The invention discloses a preparation method of paclitaxel nanoparticles. The preparation method comprises the following steps of dissolving PEG-PLA or PEG-PLA and folate-PEG-PLA mixed polymer with tetrahydrofuran; dissolving paclitaxel with dichloromethane; uniformly mixing the solutions; adding 2% polyvinyl alcohol of which the volume is 1.5 times of that of the mixed solution, and performing ultrasonic mixing; dropwise adding the mixed solution into water at a speed of 20-30drop/min, and performing ultrasonic treatment in an ice bath; stirring the obtained emulsion in a water bath at a room temperature under normal pressure, volatilizing an organic solvent, performing centrifugation, collecting precipitates, washing with water, and performing re-hydration; dialyzing a hydration obtained by the re-hydration; adding 2.5wt% of a freeze-drying protective agent F-68 into the dialyzed nano micelle, and performing cryopreservation, thereby obtaining the paclitaxel nanoparticles. The method is simple in operation steps and easy to operate; after the medicament micellar solution is placed at a room temperature for one week, no medicament is released, which further proves that the medicament is wrapped in cores of the nanoparticles and the properties are relatively stable.

The embodiment of the invention discloses a laser annealing device which comprises a control module, a laser beam generation module, a laser beam adjustment module and an optical module. The laser beam generation module is electrically connected with the control module and is used for producing a first laser beam according to a laser control signal output by the control module; the laser beam adjustment module is electrically connected with the control module and is used for adjusting the laser intensity distribution of the first laser beam so as to convert into a second laser beam according to a movable mechanism parameter output by the control module; and the optical module is used for converging the second laser beam so as to form a light spot corresponding to the laser control signal on a correspondingly arranged substrate. According to the laser annealing device provided by the embodiment of the invention, no matter how the quality of a light beam output by the laser changes, thefirst laser beam cannot be influenced, and uncertain influences cannot bring to the process; and the yield of the laser has no need to be frequently adjusted, so that the maximum utilization of the yield of the laser is ensured.

The invention discloses a device and a method for preparing carbon nanotubes in batches. The device is composed of a tiltable tubular rotary furnace, a solid feeder, a solid powder separator, a powdercollector and an auxiliary system. The device and the method are based on a technology for preparing carbon nanotubes by floating catalytic chemical vapor deposition, inorganic ceramic beads adoptedas a collection carrier are placed in the high temperature zone of the tiltable tubular rotary furnace, and a carbon source and a catalyst are introduced for the growth of the carbon nanotubes; and after the growth is completed, a furnace body is tilted and rotated at the same time, the carbon nanotubes deposited on the tube wall of the rotary furnace are scraped off by the ceramic beads, enter the solid powder separator and are separated, and a carbon nanotube powder is brought into the powder collector by an inert gas current, and is collected to finally obtain the carbon nanotubes. The device and the method can realize continuous batch production of the carbon nanotube, solves the problem that carbon nanotube product is prone to deposit on the tube wall of the furnace under a stable gasfield distribution reaction condition, obtain the high-quality carbon nanotubes, can be easily amplified to realize industrialization, and have great economic values.