433results about How to "Improve quality consistency" patented technology

The invention relates to the technical field of manufacturing of low-voltage drawer-type switch cabinets and discloses a welding device for a side sealing plate barb of a switch cabinet. The welding device comprises an electric welding machine, a spot welding gun, supporting pillars, a lower base, an electric conduction block, a suspending plate and an upper seat. The electric welding machine is provided with two electrodes, and the spot welding gun is connected with one of the electrodes. Clamps are arranged on the lower seat, and the suspending plate is connected with the upper seat through an air cylinder. The electric conduction block is connected to the suspending plate. The electric conduction block is electrically connected with the other electrode. The spot welding gun is connected to the suspending plate and is provided with a barb fixing structure. The supporting pillars comprise damper springs, upper sections and lower sections, wherein the upper sections and the lower sections are sleeved together. The upper ends of the upper sections are provided with connecting rings, inner rings are arranged in the connecting rings in a penetrating mode, the inner rings and the connecting rings are connected together through rubber rings, and connecting pins connected to the lower seat are arranged in the inner rings in a penetrating mode. The welding device has the advantages that a welded part does not need to be fixed manually, and the vibration isolation effect is good; the problems that much effort is cost in welding and the welding quality is poor due to welding by manually fixing the welded part are solved.

An LED assembly comprises an LED and a lens disposed adjacent to a light emitting surface of the LED. The area of cross-section of the lens projected onto the light emitting surface of the LED is substantially equal to or less than the area of the LED's light emitting surface. The light emitting device can comprise an array of LEDs and an array of lenses, in which at least one lens is associated with each member of the LED array and wherein the area of a cross-section of each lens projected onto the light emitting surface of its associated LED is substantially equal to or less than the area of the LED's light emitting surface.

The invention provides an optical fiber MEMS Fabry-Perot acceleration sensor and a manufacturing method thereof. The acceleration sensor is mainly composed of a shell, an optical fiber, an acceleration sensitive element and a pedestal. The shell, the acceleration sensitive element and the pedestal of the sensor are processed by adopting an MEMS technology. Fixing of the pedestal, the acceleration sensitive element and the shell is realized via an MEMS bonding technology. The optical fiber is fixed in an optical fiber bushing. Fixing of the optical fiber and the shell is realized via a fusion welding technology. A mass block is processed at the center of the acceleration sensitive element via the MEMS technology, and the mass block on the light emergent surface of the optical fiber and the acceleration sensitive element is arranged in parallel so that a Fabry-Perot cavity is formed, and high-sensitivity measurement can be realized. The optical fiber MEMS Fabry-Perot acceleration sensor has advantages of small size, mass production, great consistency, low temperature coefficient and high temperature resistance so that acceleration measurement under conventional and special environments can be met.

The invention discloses a buried and embedded copper block PCB manufacturing method, which comprises steps of laminating treatment of a buried copper block, groove milling, gold immersion, laminating treatment of an embedded copper block and the like. The step of lamination of the buried copper block comprises a buried copper block lamination pre-treatment process. The buried copper block lamination pre-treatment process comprises groove treatment on the edge of the bottom part of the copper block, round corner treatment on the edge of the copper block, and chamfer treatment on the edge corner of the copper block. The step of lamination of the embedded copper block comprises an embedded copper block lamination pre-treatment process, which comprises groove treatment on the edge of the bottom part of a groove hole into which the copper block needs to be embedded, round corner treatment on the edge of the groove hole into which the copper block needs to be embedded and chamfer treatment on the edge corner of the groove hole into which the copper block needs to be embedded. The buried and embedded copper block PCB manufacturing method has the advantages of high product yield, high production efficiency, good quality consistency and simple operation.

The present invention relates to a process tor the production of precipitated lignin from black liquor wherein the process comprises the steps of providing a black liquor stream treating the black liquor at an increased temperature and precipitating the lignin from the heat treated black liquor. The present invention further relates to precipitated lignin produced according to the process and use of the precipitated lignin produced.

The invention relates to an image measurement tool system, and the system comprises a sheet metal instrument stand, a display, a computer host, a mouse keyboard, a console, a workbench moving mechanism, a lifting mechanism, a working table, a glass block, a clamping tool for clamping a cutter, a bottom light source plate, a lateral image collection device, and a longitudinal image collection device. The mouse keyboard and the display are respectively connected with the computer host, and the computer host is connected with the console. The workbench moving mechanism and the lifting mechanism are disposed on the console and are connected with the console. The working table is disposed above the workbench moving mechanism, and the glass block is disposed on the upper surface of the working table. The clamping tool is disposed at the central part of the glass block. The longitudinal image collection device is fixed on the lifting mechanism, and the lateral image collection device is rotatingly connected along the axis of the longitudinal image collection device through an angle rotating device. The bottom light source plate is disposed on the working table, and is disposed at a side of a longitudinal camera lens.

The binary equivalent substitution constant speed pneumatic conveying process for multiple branch pipe negative pressure dilute phase pneumatic conveying system features that in a working set possessing branch pipes with pneumatic valve and damper and when some branch pipe is cut off suddenly, each of the other branch pipes inside the system is equivalently supplemented with corresponding air quantity and wind pressure. The process can convey material reliably and fluently in balance with minimized physical and chemical damage, and reach the aims of lowering material consumption, lowering cost and raising product quality.

The invention provides a multilayer wiring substrate/multi-chip integration-based large port interconnection chip interconnection construction and physical realization method and relates to a multi-chip interconnection structure, a multi-chip interconnection structure construction method, multi-chip layout, substrate pin array partitioning and distribution, distribution of high-speed differential signal pin pairs, effective partition of substrate wiring and a partition method of the substrate wiring as well as a corresponding multi-chip interconnection chip device which are applicable to substrate integration. According to the invention, large-port interconnection chips can be effectively and equivalently realized based on substrate encapsulation size. Compared with a corresponding single-chip integration implementation method, the method of the invention can support multiple kinds of interconnection structures, and is compatible with interconnection sub-chips be of a variety of micro-system structures, can effectively utilize the characteristics of different functional interconnection sub-chips, and has better performance in implementation cost of the chips, scalability, flexibility, compatibility and the like; and at the same time, the method of the invention has lower requirements for manufacturing technology for realizing a required integrated circuit and can provide interconnection chips having different specifications and different number of ports, and can more flexibly adapt to market demands.

The invention discloses a preparation method of a high-quality self-support diamond thick film. The preparation method comprises the following steps: preparing a high-quality self-support diamond film which is 0.5 to 0.7 mm thick according to a chemical vapor deposition method; conducing grinding and polishing on a nucleation surface of the high-quality self-support diamond film, removing residual carbonide, and preparing a high-quality diamond film which is 1 to 3 mm thick on the treated nucleation surface by taking the treated nucleation surface as a base body, wherein during the two preparation processes, once the thickness of the diamond film is increased by 50 to 100 [mu]m, the methane flow rate is reduced by 0.5 to 1 percent of an initial methane flow rate. The high-quality self-support diamond thick film prepared according to the preparation method is high in quality uniformity, has no crack, and is high in mechanical strength.

Disclosed is a compression molding method comprising the steps of: calculating an average value of mold clamping forces sensed in a plurality of mold clamping mechanisms for clamping a stationary and a movable mold half; obtaining a first control signal on the basis of deviation between a preset target mold clamping force and an average value of sensed mold clamping forces; sensing positions of movable members of the mold clamping mechanisms; obtaining an average value of sensed positions; setting the average value as a successive target position; obtaining a second control signal on the basis of deviation between each of the sensed positions and the successive target position; and obtaining a clamping control signal for each of the clamping mechanisms by adding the first control signal and the second control signal. An apparatus suitable for implementing the method is also disclosed.

The invention discloses sprouting dried broad beans, which is prepared by adding the following ingredients of 2-5 parts by weight of white granulated sugar and 2-2.5 parts by weight of powder into 30 parts by weight of sprouting dried broad beans, wherein the powder comprises the following components in parts by weight: 3 parts of chili powder, 2 parts of garlic powder, 2 parts of spice, 1 part of monosodium glutamate and 1 part of sugar. The invention also discloses a preparation method of the sprouting dried broad beans. The sprouting dried broad beans have excellent appearance and quality consistency and distinctive taste and are crisp, sweet and spicy. The preparation method of the sprouting dried broad beans adopts a continuous fried production mode, the flavorings are mixed by adopting a rolling mode of an elliptical rolling pot in order to be more evenly mixed, the fried procedure adopts a pneumatic rolling mode, various indexes of appearance, rationalization, and the like of the sprouting dried broad beans have more consistency, and the development of the sprouting dried broad beans is promoted.

An improved method of preparing molded seamless breast pads, cups, fronts and the like for use in brassieres and other garments is described. Polyurethane foam sheet, which still contains free isocyanates in its urethane matrix, is sliced from a freshly made foam bun, and placed between the mold parts. The mold parts are then closed by a hydraulic press. Steam is injected through holes in one mold part, and flows throughout the compressed polyurethane foam. Exhaust steam is emitted from holes in the other mold part. Moisture and heat from the steam then accelerate reactions with the free isocyanates and further cure the polyurethane foam material. The polyurethane foam material is therefore molded into the shape of mold parts cavity.

The invention discloses a Z-direction enhanced underwater sound absorption sandwich composite material and a preparation method for the same. The composite material comprises composite material panels, a sound absorption core material and enhancement structures, wherein the enhancement structures are arranged in the thickness direction of the sound absorption core material, namely a Z direction, between the upper and lower panels. The whole structure of the Z-direction enhanced underwater sound absorption sandwich composite material is formed by a vacuum assisted forming process. Compared with an ordinary sound absorption sandwich composite material, the Z-direction enhanced underwater sound absorption sandwich composite material has the advantages that flat compression strength is greatly strengthened, a compression modulus is improved by more than one order of magnitude, bending rigidity is doubled, sound absorption performance is improved by 10 to 85 percent, and sound absorption performance under high water pressure is improved by 50 to 85 percent; and the forming process has the advantages of high operability, high quality consistency, suitability for the formation of a large-sized composite material component, and the like.

The invention relates to a low-melting-point thermoplastic solid propellant and a preparation method thereof, and belongs to the technical field of composite solid propellants. The propellant is prepared from the following components by mass percent: 55%-70% of oxidant, 10%-20% of thermoplastic elastomer binder, 10%-20% of plasticizer, 5%-20% of metal fuels and 3%-8% of auxiliaries. The prepared low-melting-point thermoplastic solid propellant has the advantages that melting mixing and forming of the thermoplastic propellant at a relatively low temperature lower than 95 DEG C can be realized,process safety of thermoplastic propellant preparation is greatly improved, a curing and cross-linking process in comparison with a thermoplastic propellant is cut out, process flow is shortened, production efficiency is improved, production cost is reduced and repeated processing of waste products can be realized.

The invention discloses an automatic welding device for a vehicle body-in-white, which can simulate an industrial robot to perform the automatic welding operation, has a simple and smart structure, is convenient to operate, ensures higher quality uniformity, higher flexibility, lower investment and maintenance cost and higher production efficiency, and can be rapidly assembled by means of standard modules to adapt to different welding objects. A Z-axis load module with welding tongs is connected with a multi-axis linear module; a rotary module converts the rotation of a motor into a rotary motion; the multi-axis linear module comprises an X-axis linear module and the Z-axis load module; and the X-axis linear module, the Z-axis load module and the rotary module are linked through a multi-axis linkage numerical control unit to perform the welding operation.

The invention relates to a rapid vacuum annealing method for a tantalum tube, which comprises the steps of: washing and air-drying the tantalum tube; placing the washed tantalum tube into a heat-resistant casing, and axially sending the washed tantalum tube and the heat-resistant casing to a vacuum induction annealing furnace together; adopting a three-stage vacuum system to work, and ensuring that the three-stage vacuum system pumps until the vacuum degree is 10Pa; ensuring that the inside of the vacuum induction annealing furnace is in a high vacuum state; and annealing the tantalum tube in the vacuum induction annealing furnace, namely finishing the temperature increase by heating and quick cooling in the furnace. The annealing by the method has the advantages of quick temperature increase of the tantalum tube, good product structure and performance of the tantalum tube, good mass conformance of the tantalum tube, low energy consumption, low operation cost, low investment on annealing equipment, and simple disassembly and maintenance. The method does not perform heat preservation for a long time and has low power consumption. The admissible stress of the tantalum tube is improved by 60 percent or so compared with the prior vacuum annealing furnace after the annealing is performed by the method; and under the same service strength, the method can save about 40 percent of tantalum materials and has remarkable economic benefit.

The invention relates to a solid rocket engine combustion chamber shell adiabatic layer forming method, and belongs to the field of adiabatic layer forming technologies. The solid rocket engine combustion chamber shell adiabatic layer forming method comprises the steps that according to the design structure of an engine combustion chamber shell, an adiabatic layer prefabricated part which is not completely vulcanized is prepared, and the outer diameter of the adiabatic layer prefabricated part which is not completely vulcanized is less than the inner diameter of the engine combustion chamber shell; the adiabatic layer prefabricated part which is not completely vulcanized is bonded to the inner wall of the engine combustion chamber shell through a heat vulcanization adhesive; and hot pressing vulcanization is conducted, and thus the engine combustion chamber shell with an adiabatic layer is obtained. Through internal support tension of the adiabatic layer prefabricated part and a good isolation gap between the adiabatic layer prefabricated part and the inner wall of the combustion chamber shell, the problems of sheet pasting warp and unsmooth exhaust of sheet rubber are effectivelysolved, and bonding reliability of the interface of the adiabatic layer and the shell is improved.

The invention relates to the technical field of camera shooting cloud decks, in particular to a camera shooting stabilizing and fixing device. The camera shooting stabilizing and fixing device comprises a clamping device and a rotary shaft device. The rotary shaft device comprises a first rotary shaft motor. The first rotary shaft motor comprises a first rotary shaft stator and a first rotary shaft rotor. A fixing base is connected to the first rotary shaft rotor. The clamping device comprises a side connection plate which is connected with the fixing base through a first axial fastening piece. The first axial fastening piece connects the side connection plate with the fixing base in a locking mode in the direction parallel to the axial direction of the first rotary shaft motor. According to the camera shooting stabilizing and fixing device, the quality consistency of portions of the junction of the first rotary shaft motor and the clamping device in the axial direction is good, the effect that stability is higher when the first rotary shaft rotor of the first rotary shaft motor drives the clamping device to rotate is ensured, centre-of-gravity shift is avoided, that is, the precision is improved when the first rotary shaft motor drives the clamping device to rotate, and accordingly the camera shooting precision of a camera shooting device clamped to the clamping device is greatly improved.

The invention discloses a firework with an integral module explosive filing structure in an open mode and a preparation method thereof. The explosive filling structure disclosed by the invention comprises a shell, a delay fuse, bright beads and an open explosive module, wherein the shell, the delay fuse and the bright beads are made of traditional materials. The preparation method of the fireworkwith the integral module explosive filling structure in an open mode comprises the following steps: preparing a slurry containing an organic adhesive, an ignition performance reinforcing agent and granular micro-pore firework explosive granules; then, filling the bright beads and the slurry into the ball shell of the firework according to the needed structure, thus forming an integral module structure; and finishing the preparation of the firework according to a conventional method. By adopting the integral module explosive filling structure and the explosive filling method, the gap between the open explosive module and the bright beads is basically eliminated; the ignition rate of the bright beads can be improved; the mechanical friction action among the granules in the explosive fillingcourse and storage and transportation course of the granules is avoided; and the safety of the preparation course and storage and transportation course of fireworks is improved.