108results about How to "Improve manufacturing pass rate" patented technology

The invention discloses a device for controlling the delivery and the uniform distribution of reaction gas in a MOCVD reaction chamber. By respectively controlling the flow of gas passages non-uniformly distributed radially on a front gas homogenizing plate and input passages at different positions, at least two reaction gases are respectively introduced into two paths which are radially and axially crossed on a spray header, and can be secondarily distributed by nozzles in different shapes, so the uniformly distributed boundary layer concentration, speed and temperature required are achieved on the surface of a rotary epitaxial wafer, the quality of massively produced epitaxial films and the finished product ratio of massively produced epitaxial wafers are improved, the consumption of expensive reaction gases can be effectively controlled and the epitaxial production cost is reduced. By properly increasing the distance between the surface of the spray header and the epitaxial wafer, deposits generated on the surface of the spray header and the nozzles in the epitaxial growth are reduced, the cleaning period is prolonged, and the production efficiency and system capacity are improved. The device also can reduce the processing difficulty and manufacturing cost of the nozzles of the spray header and cooling medium passages.

The invention relates to the precision casting field, in particular to a preparation method of a low pressure guide connected hollow blade. The preparation method comprises the following steps: firstly quartz glass powder, mullite powder, a plasticizer and an additive are mixed to stir evenly, the mixture is filled in a core pressing device and prepared into a mother core; secondly quartz glass powder is filled in a charging bucket, the mother core is inserted in the powder, the quartz glass powder is filled in the entire charging bucket to sinter and prepare a core; the prepared core is placed in the corresponding place of a blade mould to fill wax, the mould is preheated to perform pressing, finally the obtained wax mould is dressed; then a pouring system shell is prepared; and the pouring system shell is preheated before pouring, a K417G alloy is used as the raw material, then the alloy raw material is refined at 1570+/-10 DEG C for no less than 3 minutes, finally the liquid alloy steel is poured in the preheated pouring system shell, the pouring time is 3-5 seconds, and the finished product low pressure guide connected blade casting is formed.

The invention discloses a cold-heat composite manufacturing method for machining of the hollow turbine blade inner cavity precision casting appearance. The method comprises the steps that a turbine blade casting blank model is designed, a blade blank is cast, and the blade six-freedom-degree positioning datum point or the blade equivalent structure of the six-freedom-degree positioning datum pointis reserved; a rapid replacement clamp tray or a measuring clamp is arranged on a blade rabbet part, and accurate positioning of the blade is conducted; an industrial CT measuring device is used forobtaining point cloud data of a blade inner cavity, the blade inner shape and appearance, other related surfaces, auxiliary positioning datum and the like, a coordinate system is designed after fitting, and grinding machining or milling machining is conducted on the auxiliary positioning datum on the blade and the blade body appearance; the blade is positioned and clamped according to the machinedblade body appearance, and a tenon grinding machine tool is utilized for machining a blade tenon and other end portion structures; and air film holes in the blade are machined through tenon positioning. The casting process is simplified, meanwhile, the blade inner cavity and appearance manufacturing precision is guaranteed, the strict requirement for precision of the relative position of the blade inner cavity and the blade appearance is guaranteed, and the hollow turbine blade manufacturing qualification rate can be obviously increased.

The invention discloses a manufacturing method for titanium and titanium alloy products by coating and forming, wherein the needed devices during a production process comprise an electric furnace, a forming machine and an infrared thermometer. The manufacturing method comprises the following steps of coating by choosing steel or pure titanium; selecting single-layer coating or double-layer coating; performing blank verification, oxidation resistance, lubrication and heating before forming, and preheating a die to be about 200 DEG C before forming; rapidly transferring the heated coated blanks onto a pressure machine for forming, and forming by 1-2 heating numbers; and measuring the temperatures of the surfaces of the blanks by the infrared thermometer during the forming process, so as to ensure that the temperatures of the blanks are always kept in a titanium alloy hot-forming temperature range during forming, and finally obtaining the titanium and titanium alloy products. Hemispherical shells manufactured by the manufacturing method disclosed by the invention meet requirements on various technical indexes with low manufacturing cost; the forming heating numbers are reduced to be 1-2 from the previous 2-3, so that the production efficiency is improved and the production cost is reduced; and the thinning rate of the material is reduced, and the utilization ratio of the material is increased.

The invention discloses a manufacturing method of an ultra thin-walled light metal alloy housing or frame. The method includes firstly, designing a composite casting simulation model comprising no less than two housing monomers or frame monomers with computer simulation software, and manufacturing a mould according to the composite casting simulation model, wherein segmentation processing allowance is reserved among the monomers; secondly, preparing light metal alloy semi-solid stuff, injecting the stuff into the mould of a casting machine, and casting a composite cast with a method of a semi-solid forming; and thirdly, manufacturing an ultra thin-walled light metal alloy housing or frame finished product through the processes of machining segmentation, finish machining and the like. According to the manufacturing method of the ultra thin-walled light metal alloy housing or frame, the manufacturing yield and the production efficiency of the ultra thin-walled light metal alloy housing or frame can be improved, the manufactured ultra thin-walled light metal alloy housing or frame has the advantages of light weight, low density, good heat dissipation, good hardness and impact resistance and the like, and the needs of 3C (Computer, Communication and Consumer Electronic) products can be perfectly met.

The invention relates to a low-creep zircon overflowing brick and a preparation method thereof. The low-creep zircon overflowing brick comprises, by mass, 100% of zircon powder, wherein zircon oxide short fibers account for, by mass, 0.0-4.0% of the zircon powder, silicon oxide powder accounts for, by mass, 0.1-2.0% of the zircon powder, and composite additives account for, by mass, 0.1-0.8% of the zircon powder. The composite additives can be La2O3, or CeO2, or combination of La2O3 and Y2O3, or combination of CeO2 and Y2O3, or combination of La2O3, CeO2 and Y2O3. According to the low-creep zircon overflowing brick and the preparation method thereof, strength of green bodies is improved, firing shrinkage of the green bodies is reduced, manufacturing yield of products is improved, bonding strength of crystal boundaries of zircon is enhanced, the high-temperature bend-creep rate of products is effectively lowered, and the service life of super-large-size overflowing bricks is prolonged.

The invention relates to a correction method for surface mounting machine importing production data comprises that: a user needs to submit necessary production data; a production result can be directly previewed by a client; the client can submit an error compensation value by himself, wherein the error compensation value is stored for long term and the user does not need to submit a compensation value for second time; and a factory can directly use compensated data. The correction system for surface mounting machine importing production data comprises a gerber analyzer, a member database, a bom analyzer, a compensation submission module and a steel grid boring testing module. The gerber analyzer can be used for analyzing circuit board production data of the user and producing a simulation circuit board; the member database comprises a member simulation graph; the user coordinate file analyzer is used for importing coordinate data of the user to a system, wherein the coordinate data has errors; the bom analyzer is used for importing material information used by the user to the system; the compensation submission module is used for the user to check the error and submit the error compensation value; and the steel grid boring testing module is used for checking quality of steel grid boring. Through the correction method and system of the invention, the factory does not need personnel to check members, coordinates and angles. The correction method and system for surface mounting machine production data introduction greatly reduce human resource usage of the factory and improve production quality and efficiency.

The invention discloses a method for presetting multilayer panel slot antenna brazing filler metal. The method comprises the first step of cleaning a base board, heat-resistant glass or ceramic, the brazing filler metal, panel slot antenna parts and a pressing board; the second step of assembling the panel slot antenna parts and the brazing filler metal, the third step of arranging the base board, the heat-resistant glass or ceramic, the brazing filler metal, the panel slot antenna parts and the pressing board in a vacuum furnace horizontally, carrying out vacuum-pumping, heating the vacuum furnace when the vacuum degree reaches 10<-3>Pa or more than 10<-3>Pa, increasing the temperature and keeping the temperature in a sectional mode, stopping heating after keeping the temperature for 5-15min when the temperature of the furnace is uniform and is located between the liquidus temperature of the brazing filler metal and the solidus temperature of the parts, then cooling the parts, and taking out the parts when the temperature of the furnace is cooled to be the normal temperature; the fourth step of checking whether a soldering seam texture meeting the technological requirements is formed on the contact face of the parts and the brazing filler metal or not. According to the method, the needed devices and the technological devices are simple, the brazing filler metal does not need to be processed and is preset accurately, assembly process is simplified and qualified rate is improved.

For solving the problem that notch sensitivity exists after an existing GH4169 alloy welding assembly is subjected to braze welding and aging treatment, the invention provides an intermediate heat treatment and aging process using a recovery delta phase, namely a process of intermediate heat treatment and aging. The specific intermediate heat treatment technological process comprises the steps ofplacing a GH4169 alloy welding assembly with notch sensitivity in an air furnace, heating to the temperature of 950-980 DEG C, insulating for 0.5-2 h, and cooling to the room temperature within 0.5 h.The aging technological process comprises the steps of placing the GH4169 alloy welding assembly subjected to intermediate heat treatment into the air furnace, heating to the temperature of 700-800 DEG C, insulating for 8 h, cooling to the temperature of 600-700 DEG C at the rate of 50+/- 10 DEG C/h, insulating for 8 h and cooling in air. The notch sensitivity of the GH4169 alloy forge piece canbe eliminated, and the endurance property of the notch of the GH4169 alloy welding assembly is recovered.

A kind of display includes a display panel, a circuit panel and a film encapsulation structure. The circuit is at the side of the display panel. The film encapsulation structure includes a base plate, several leading feet, a chip and a prominence. The base plate has a hatch and is set between the display panel and the circuit panel. The leading feet are on the base plate and around the hatch. Every leading foot has an inner leading foot and an outer leading foot. Some outer leading feet are connected with the display panel and the others are connected with the circuit panel. The chip has multiple junctions and is set at the hatch. The junction is connected with the inner leading feet. The prominence is on the base plate and between the chip and the display panel. The encapsulation structure with the prominence can improve the pass percent of the display panel.

In the display panel, the data drive chip is connected on the panel in series, wherein the first flexible PCB is arranged between the PCB and one chip end to send data to the chip, and the second flexible PCB is arranged between the PCB and the chip to transmit power signal to the chip.

The invention discloses a power battery cover plate and a manufacturing method thereof. The power battery cover plate comprises a top cover, a pole and a first rubber coating piece, wherein the top cover is provided with a counterbore, the counterbore is provided with a first step surface, the top cover is provided with a flange arranged around the counterbore, the pole comprises a body and a convex ring connected with the body, the body is matched in the counterbore, the convex ring is clamped between the first step surface of the counterbore and the flange, and the surfaces of the body and the convex ring are coated with the first rubber coating piece. According to the power battery cover plate, due to the fact that the top cover is provided with the structure capable of being connectedwith the pole convex ring in the pressing mode, limiting connection between the top cover and the pole is achieved, the overall structure of the cover plate is simplified, the internal space of a power battery is increased, and assembly of the cover plate is facilitated.

The invention relates to an inductance coil end bending and cutting device, and belongs to the technical field of mechanical equipment. The inductance coil end bending and cutting device comprises anoperation table, a cross beam, a cutting transverse moving guide rail, a workpiece longitudinal moving guide rail and a wire turning clamping jaw longitudinal moving guide rail. According to the inductance coil end bending and cutting device, two inductance coil ends on an inductance coil can be clamped through a coil turning clamping jaw air cylinder, the two inductance coil ends are rotated by 180 degrees by a coil turning clamping jaw rotating air cylinder, and two redundant inductance coil ends bypassing the upper portion of the inductance head are cut off by a cutting spot welding head inan electric welding mode. In conclusion, the inductance coil end bending and cutting device is reasonable in structural design, can quickly bend and cut the inductance coil ends, improves the preparation efficiency and the qualification rate of inductors, and is suitable for popularization and application.

The invention discloses a welding method of a multi-tab lithium battery tab. The welding method comprises the following steps: (S1) sleeving a negative tab and a positive tab of a lithium battery core with a copper flat ring and an aluminum flat ring respectively; (S2) pre-pressing the core sleeved with the flat rings so as to firmly connect the flat rings with the core; (S3) arranging an electrode outgoing line on a battery top cover at the center position of a clip-shaped ring; and (S4) welding the center position in the (S3) so as to weld the tab pressed with the flat rings together with the outgoing line of the battery top cover. The invention also provides a battery core produced by the method. According to the welding method, the core tab is well welded together with the outgoing line of the battery top cover, so that the phenomena such as tab drop and insufficient welding can be avoided, and also the damage phenomenon of a foil tab in a welding process can be avoided.

The invention discloses a tooth shoveling radiator and a preparation method thereof. The preparation method comprises the following steps that S1, a 6-series aluminum alloy plate with the hardness being 32HB-39HB is prepared; S2, the 6-series aluminum alloy plate obtained in the step S1 is subjected to tooth shoveling machining, and a tooth shoveling radiator semi-finished product with a bottom plate and radiating tooth pieces is formed; S3, aging heat treatment is conducted on the tooth shoveling radiator semi-finished product obtained in the step S2 till the hardness of the tooth shoveling radiator semi-finished product is increased to 55-64 HB; and S4, the tooth shoveling radiator semi-finished product treated in the step S3 is machined to obtain a tooth shoveling radiator finished product. According to the method, the tooth shoveling difficulty and height are reduced by reducing the hardness of an aluminum plate before tooth shoveling, the hardness of the aluminum plate after toothshoveling is improved through aging, and the machinability of an aluminum alloy bottom plate is improved.

The invention discloses a permanent magnet, a rotor, a motor and a compressor. The working surface of the permanent magnet comprises first edges and second edges which are arranged perpendicularly; the first end point of each first edge and the tail end point of each second edge are connected through a transitional edge; the corresponding transitional edge is positioned on one side, close to the center of the working surface, of the connecting line of the corresponding first end point and the corresponding tail end point; and each transitional edge comprises at least one sub circular arc section, or a combination of at least one sub circular arc section and at least one sub straight line section. According to the permanent magnet provided by the invention, by limiting the shape of the transitional edges, the material cost can be lowered, the mechanical strength of the permanent magnet can be enhanced, and the manufacturing percent of pass of the permanent magnet can be improved.

The invention belongs to the field of infrared light sources, and particularly relates to an MEMS infrared light source and a manufacturing method thereof. According to the MEMS infrared light source, a reflecting layer with high reflectivity to infrared radiation is introduced into a heating electrode layer and the back of a supporting material (located in a cavity area of a substrate), so that infrared radiation energy radiated by the heating electrode layer to the cavity part of the substrate through a supporting film is reflected back and is radiated upwards through the heating electrode layer; infrared radiation energy capable of being utilized by the infrared sensor is enhanced, the photoelectric conversion efficiency of the MEMS infrared light source is greatly improved, and the heating power consumption is reduced; meanwhile, the ultrathin (the thickness is not greater than 1 micron) infrared emission layer is introduced, so that the thermal quality of the heating electrode layer is greatly reduced while the high infrared emission capability of the MEMS infrared light source is ensured, the modulation frequency of the MEMS infrared light source is improved, and the heating power consumption is further reduced.

The invention relates to the technical field of intelligent construction, and discloses a manufacturing method of a large conical ring piece. The manufacturing method comprises the following steps that 1, the size is designed, specifically, the small end face size, the large end face size and the taper of the conical ring piece are designed according to actual size requirement data; 2, a blank mold is designed, specifically, the blank mold is designed according to the designed small end face size, the large end face size and the taper of the conical ring piece; 3, a primary blank is forged, specifically, a metal ingot is selected according to the actual using environment and the using requirement of the conical ring piece, the metal ingot is forged through a forging machine according to the hardness, the plasticity and the ingot type of the selected metal ingot, and a rough blank is obtained for standby application after forging is completed; and 4, the rough blank is subjected to finish forging, specifically, the rough blank is subjected to finish forging through a forging cogging hydraulic machine, and loosening, shrinkage cavities and microcracks in the rough blank are forged. According to the manufacturing method of the large conical ring piece, the manufacturing qualification rate of the large conical ring piece is effectively increased, and the cost of large-batch production of the large conical ring piece is effectively reduced.

The invention relates to a xenon lamp and a manufacturing technology thereof. The xenon lamp comprises a lamp holder, a lamp tube and a luminescent tube arranged in the lamp tube, wherein the lamp holder comprises a fixed seat and a connector arranged at one end of the fixed seat; the connector is internally provided with a cavity for installing the lamp tube; the fixed seat is internally provided with two connecting passages; one end of each of the two connecting passages is communicated with the cavity respectively, and one of the other ends of the two connecting passages is communicated to the outside of the side wall of the fixed seat, and the other of the other ends of the two connecting passages is communicated to the lower end face of the fixed seat; two electrode leads of the luminescent tube are arranged in the two connecting passages respectively; one end of each of the two electrode leads is connected with a molybdenum sheet respectively, the molybdenum sheets of the two electrode leads are arranged in a staggered manner and are arranged in a clamping and sealing port and the lamp tube respectively, an insulating sleeve is arranged on the molybdenum sheet positioned in the lamp tube in a sleeving manner, and one end of the insulating sleeve stretches out of the clamping and sealing port along the corresponding electrode lead. By using a clamping and sealing technology, the required time of the manufacturing process is short, and the manufacturing qualified rate is high; the connecting process between the lamp tube and the lamp holder is simple, and the reliability of connection between the lamp tube and the lamp holder is improved.