114results about How to "With uniformity" patented technology

A method for preparing WC-Co gradient hard alloy material includes ballmilling the WC powder, Co powder, adhesive and dissolvent made based on required ratio to mix into a moldable material; rolling the moldable material into monolithic film blanks with different Co content or different WC grain fineness number separately by a double-roller film machine, then laminating the monolithic film blank in sequence to roll again to obtain multilayer composite blank with different Co content or different WC grain fineness number; then the multilayer composite blank is feed to a sintering furnace to pre-sinter for 90 to 150 min at a temperature range from 750 to 800 DEG C with hydrogen gas, then to sinter for 40 to 80 min at a temperature range from 1350 to 1500 DEG C, last to cool to obtain the WC-Co gradient hard alloy material. The relative density of the material is all higher than 99%. The Rockwell hardness is all higher than 88HRA, and the flexural strength is improved obviously comparing with the hard alloy containing uniform component.

The invention relates to a light guide plate, comprising an incidence plane, an emergent plane crossed with the incidence plane and an undersurface opposite to the emergent plane. The incidence plane comprises at least a first groove passing through the emergent plane and the undersurface as a first light receiving region, and at least a second groove passing through the emergent plane and the undersurface as a second light receiving area. As the incidence plane forms at least two light receiving areas of different structures, different guides and adjustments of light from the same source can be realized so as to obtain different lights from the light guide plate, achieving the multi-functional light guide effect of the plate.

The invention discloses a grinding device for sapphire wafers. The grinding device for sapphire wafers comprises a pulp stock barrel, a peristaltic pump and a grinder, wherein a pulp stock trough is arranged on the grinder, and pulp stock enters into the grinder through the peristaltic pump and the pulp stock trough. The grinding method for the sapphire wafers comprises the following steps: 1, preparing the pulp stock: putting in raw materials by levels and layers; 2, controlling pulp stock flows: putting pulp stock accurately; 3, correcting the flatness of the surface of a grinding lower plate: repeatedly measuring by using a long gauge, a short gauge and a dial gauge, and correcting; 4, distributing powder on the surface of a grinding plate; and 5, grinding both sides of each wafer: firstly carrying out light pressing grinding. The grinding method provided by the invention is characterized in that raw material ratio of the pulp stock is optimized, the pulp stock supplying flow is more accurate, the conveying is more even, before normal grinding, light pressing grinding is performed firstly, the problem of wafer breakage during a grinding process can be prevented for the greatest possible, the wafer breakage rate is lowered, the merit factor of grinding is improved, the removing rate during grinding is stable, the problems of over grinding and low removing rate cannot be caused, and the efficiency is relatively high.

This invention discloses a preparation technology for BaTiO3 base laminated sheet PTC thermistors including 1. applying film grinding formation technology to prepare PTC sheet green compact, 2. sputtering internal electrodes, 3 co-sintering, 4 forming end-electrodes. Advantages: taking water as the solvent to prepare sheet PTC green compact with a film-grinding formation method results in little pollution, low cost and uniform, tight and smooth compact sheets. Good ohmic contact is formed during hot press sintering and oxidation problem of metallic electrodes is solved to form good PTC effect.

The invention discloses novel porous silicon and a preparation method thereof. The porous silicon has a structure that cylindrical nanometer porous silicon is formed in a low-doped and N-shape monocrystalline silicon film base, and closes straight hole cavities, and the surface is nanometer porous silicon. The invention employs an electrochemical corrosion method, where the structure of the novel porous silicon is made by controlling the mixture solution proportioning and the voltage and current of a dc source in a mixture solution of hydrofluoric acid and an organic solvent. The novel porous silicon structure and the preparation method provide a new technological approach and method for the integration of a silicon-based micro nano device with a sensor, a self-destructing chip, a luminescent device, etc.

The invention discloses a multi-barrel rotary black tea fermentation device. The multi-barrel rotary black tea fermentation device comprises a power device, a heat, moisture and oxygen supplying system, a frame, a feeding port and a discharging port, wherein a long outer barrel is arranged; a plurality of fermentation barrel are arranged on the same circumference inside the outer barrel; the fermentation barrels are fixedly connected with the outer barrel; small holes are arranged uniformly on the surface of the barrel wall of each fermentation barrel; a plurality of small round pipes provided with small holes pass through the barrel wall of each fermentation barrel; the inner wall of each fermentation barrel is provided with a plurality of uniformly distributed spiral material guiding ribs; the feeding port is communicated with the fermentation barrels; the terminal end of each fermentation barrel is communicated with the discharging port; an air intake central pipe is arranged; one end of the air intake central pipe is communicated with the center of a cavity body of the outer barrel while the other end of the air intake central pipe is connected with the heat, moisture and oxygen supplying system; and the power device can drive the outer barrel to rotate. The multi-barrel rotary black tea fermentation device, disclosed by the invention, has the advantages of a simple structure, cleaning convenience, high automation level and capability of realizing clean production of tea leaves; the fermented black tea has uniformity and consistency; and the quality of the tea leaves is improved.

The invention provides a cashmere-like yarn dyeing method and a cashmere-like yarn dye vat, belongs to the technical field of textile and solves the technical problems that one end of a yarn hanger of an existing double-cylinder dyeing machine is a suspended end, bearing capacity is poor, the existing double-cylinder dyeing machine is not provided with a pedal device, an operator cannot conveniently take down upper yarns, operation is strenuous, a preparation method omits dye liquor and the like. The cashmere-like yarn dyeing method includes the steps: a, blank inspection; b, threading; c, dye liquor manufacture; d, feeding; e, dewatering; f, drying; g, warehousing. The dye vat is used for dyeing cashmere-like yarns and comprises a frame, a plurality of upper dyeing sticks and a plurality of lower dyeing sticks, and an upper vat body and a lower vat body are fixed on the frame. The dye vat has the advantages of high dyeing efficiency, fine supporting effect and fine working stability.

The invention discloses a preparation method of a calcium-iron type Ca2Fe2O5 catalyst. The method adopts ferric nitrate, calcium nitrate and citric acid as precursors which are added with a certain amount of water to prepare a solution, and the solution is stirred at 40 DEG C for 30 minutes to be evenly dispersed, wherein the citric acid is added as a foaming agent for foaming at 180 DEG C for 12h, an obtained foaming substance is ground, sieved, and then calcined at 650 DEG C in a muffle furnace for 4h to finally obtain a high-purity Ca2Fe2O5 catalyst. The Ca2Fe2O5 catalyst prepared by the method has a large specific surface area and a stable framework structure, can keep extremely strong stability after being oxidized and reduced by an oxidant and a reducing agent for a plurality of times, and can be used in the fields of chemical chain combustion, chemical chain hydrogen production, photocatalysis and the like.

The invention discloses a method for reducing the number of array elements of a large-scale spherical surface array, and aims to provide a method capable of obtaining electrical performance equivalentto that of a full array and remarkably reducing the total number of the array elements of a spherical surface antenna array. According to the technical scheme, the method comprises: establishing a coordinate system, and constructing an antenna subarray according to the rule of half-wavelength uniform arrangement of antenna units in the antenna subarray; dividing sub-arrays along the pitching direction and the azimuth direction of the coordinate system, and constructing an initial full array; establishing a spherical cylindrical array antenna array model based on large-spacing array element arrangement, and constructing a new antenna subarray with large-spacing array element arrangement; and then, setting an activation angle domain and different incoming wave directions according to the array element spacing, and calculating the synthetic gain of the antenna array under each array element interval. The total array synthetic gain of the antenna is compensated by reasonably reducing thecurvature of the spherical surface and increasing the diameter of the spherical surface to a proper value, and the gain value and the sidelobe characteristic similar to those of a full-array array areobtained while the number of the array elements is reduced.

The invention relates to the field of robots, in particular to a wall spraying robot. The wall spraying robot comprises a movable platform; the movable platform is provided with a moving mechanism; the movable platform is also provided with a Z-direction moving mechanism used for adjusting the up and down position; the Z-direction moving mechanism is provided with a Y-direction moving mechanism used for adjusting the horizontal position; the Y-direction moving mechanism is provided with an X-direction moving mechanism used for adjusting the front and back position; the movable platform is provided with a spraying system. Compared with a joint type spraying robot, the wall spraying robot provided by the invention is low in manufacturing cost as well as convenient to use and maintain; by adopting adjustment along the X direction, the Y direction and the Z direction, the wall spraying robot enables spraying to have comprehensiveness and uniformity, thus avoiding the phenomenon of inadequate spraying; after the robot is used for replacing manual painting, the efficiency and quality of automatic spraying are improved while the labor intensity of workers is lightened.

The invention provides a dyeing process of a clothes fabric and a dyeing vat thereof, belongs to the technical field of textile, and aims at solving the technical problems of low dyeing efficiency of the existing dyeing process of the clothes fabric and poor bearing capacity of the dyeing vat. The dyeing process of the jacquard fabric comprises the steps of a, inspecting a grey fabric; b, tailoring; c, drying by hanging; d preparing dyeing liquid; e, feeding into the vat; f, dewatering; g, drying; h, warehousing. The dyeing vat comprises a rack; an upper vat body and a lower vat body are fixed on the rack; the dyeing vat further comprises a plurality of upper dyeing bars and a plurality of lower dyeing bars. The dyeing process and the dyeing vat have the advantages of being high in dyeing efficiency, good in supporting effect and high in working stability.

The invention relates to a manufacture method of the ceramic cylinder jacket of high-pressure sludge pump for drilling, in which using zirconium oxide plasticized alumina (a-Al 203) as a matrix, leading in Zr 02 and Y 203-La 203 rare earth composite additive by using the modern plasticizing and reinforcing technology and adopting the isostatic compaction technology makes green bodies have uniformity and compactness. Because of using the atmospheric high-temp. drawer kiln once-through sintered, the temperature is distributed uniformly.

The present invention provides a light guide member, an illuminating device, and an image reading apparatus and an image forming apparatus using the same. The light guide member includes a main body part, and an entrance surface, a strip-shaped exit surface and a strip-shaped reflecting surface that are formed on the main body part. The illumination light is output from the exit surface. The reflecting surface extends in the first direction on a face placed opposite to the exit surface of the main body part and reflects the illumination light. The reflecting surface includes, on a flat face, a reflection pattern surface provided with a plurality of minute reflective concave parts having a function of reflecting the illumination light toward the exit surface. The reflective concave parts each include a deflection surface which deflects the illumination light in a direction in which a reflection angle widens in a cross sectional view in a second direction that is orthogonal to the first direction in a horizontal direction, and then reflects the illumination light. Accordingly, it is possible to output a uniform illumination light using a light guide member of a minimal size.

The invention relates to a double-layer comprehensive pipe gallery. A natural gas cabin, an electric cabin and a comprehensive cabin are arranged in the double-layer comprehensive pipe gallery, a natural gas pipeline can be contained in the natural gas cabin, an electric power pipeline and a communication pipeline can be contained in the electric cabin, a water supply pipeline, a reclaimed water pipeline, a heat power pipe and a communication pipeline are contained in the comprehensive cabin, and the natural gas cabin and the electric cabin are arranged above the comprehensive cabin to form adouble-layer distribution structure, and the natural gas cabin is independently arranged in a sealed manner; a function cabin is further arranged on the upper layer of the double-layer comprehensive pipe gallery, the function cabin can be communicated with the natural gas cabin, the electric cabin and the comprehensive cabin in the longitudinal direction of the double-layer comprehensive pipe gallery, and the top of the function cabin is provided with a function through opening which can be communicated with the exterior of the top of the double-layer comprehensive pipe gallery and can be sealed. The double-layer comprehensive pipe gallery is internally provided with the function cabin used for meeting the functions of hoisting, line leading and the like, the occupied space is effectivelyreduced, the structure is simple, the construction cost is low, and application and popularization are facilitated.

The invention relates to a baking oven temperature and humidity control system and method based on two-dimensional space 3-D fuzzy control. A baking oven system is composed of three parts including a two-dimensional space 3-D fuzzy controller on a PC, a control signal driving circuit, and a baking oven body. The innovation of the invention is that the temperature and humidity controller of the baking oven is designed by using a two-dimensional space 3-D fuzzy control method. Spatial positional information is integrated into a 3-D fuzzy control algorithm so that the 3-D fuzzy control algorithm has advantages in controlling a spatial distribution system. The two-dimensional space 3-D fuzzy control method expands the 3-D fuzzy control from a spot or a line previously to a surface, solves a problem that a conventional lumped control algorithm cannot well control the spatial distribution system, and achieves uniform baking oven temperature and humidity spatial distribution.

The invention discloses a method for upgrading a common tyre to an explosion-proof leakproof tyre. The method comprises the following steps: dismantling an old tyre and removing the tyre from a hub; polishing the internal surface of the tyre with a steel brush, clearing off impurities such as a release agent, wax and the like from the internal surface; melting a polymer synthesis memory rubber material block, and spraying the molten polymer synthesis memory rubber material onto the internal surface of the tyre; cooling the tyre with the internal surface sprayed with the rubber material to be solidified; remounting the dismantled hub onto the tyre sprayed with the memory rubber material; and carrying out dynamic balancing and calibration on the tyre equipped with the hub. The upgraded tyre comprises a tyre main-body, and the bottom of the internal surface of the tyre is coated with a layer of the polymer synthesis memory rubber material. As the polymer synthesis memory rubber material has high strength, high stretchability and high viscosity, it can be guaranteed that the tyre is leakproof and explosion-proof when pierced by a foreign matter and has a noise-reduction function.

The invention relates to a method and equipment for forming optical films with various functions on a workpiece. A pulse plasma chemical vapor deposition method is adopted as the method. The method comprises the following steps that a, the workpiece is fixedly arranged in a sealed microwave cover, and the sealed microwave cover is vacuumized; b, oxygen is led into the sealed microwave cover, pulse microwaves are guided into the sealed microwave cover, and reaction is carried out for a certain time; c, gas containing film-forming component elements is led into the sealed microwave cover, the oxygen is continued to be led into the sealed microwave cover, the pulse microwaves are continued to be guided into the sealed microwave cover, reaction is carried out for a certain time, then, the gas is stopped from being led into the sealed microwave cover, and the pulse microwaves are stopped from being guided into the sealed microwave cover. The pulse plasma chemical vapor deposition method has the high deposition efficiency, the whole process only needs few minutes, and therefore the production efficiency is quite high; plasmas of the oxygen perform plasma cleaning and surface activation treatment on the surface of the workpiece before film forming, and therefore film adhesion is greatly improved; therefore, the product quality is improved.

The present invention relates to a catalyst system. In particular the invention relates to a catalyst in the form of metal or an alloy that is encapsulated within a polymer shell or matrix. More specifically the invention is directed towards reactive catalytic metals that may be pyrophoric or otherwise reactive in air and/or susceptible to oxidation. In particular, the invention is concerned with catalysts based on nickel. Raney or sponge nickel is highly hazardous: a self-igniting solid; produces hazardous fumes when burning; causes irritation of the respiratory tract, nasal cavities; causes pulmonary fibrosis if inhaled; ingestion may lead to convulsions and intestinal disorders; causes eye and skin irritation; and chronic exposure may lead to pneumonitis and sensitization (''nickel itch''). The invention provides metal catalysts that avoid such problems and have a good shelf life and working life.

The invention provides a wafer blackening method, wherein the wafer comprises a lithium tantalate wafer or a lithium niobate wafer. According to the present invention, with the method, the electric conductivity of the wafer can be increased, and the blackening degree is high and uniform; and by using the method, a blackening reaction is performed in a high temperature environment without the direct contact between a reducing material and a wafer, such that the technical problems of poor blackening effect and low blackening uniformity of the lithium tantalate wafer or lithium niobate wafer canbe solved, the low transmittance can be achieved, and the transmittance is uniformly distributed.

The invention discloses a diversion plate and anti-vortex device integration based condenser which comprises a shell; the shell is a cylindrical shell with openings formed in the left end and the right end respectively; and a left end opening of the shell is provided with a left end cover. The diversion plate and anti-vortex device integration based condenser is simple in structure and convenientto mount and use; by performing progressive shunting through a shunting plate, an anti-flushing plate and a retaining cover, the axial distribution rate of a refrigerant is increased, the refrigeranthas uniformity in distribution of a section, and the refrigerant is prevented from washing a pipe wall when entering a condensation pipe; the anti-flushing plate has the self-adaptive moving capability, so that vibration of the anti-impact plate caused by pressure fluctuation is absorbed, transfer of the vibration is inhibited, the vibration amplitude of the condensation pipe is lowered, the structural strength of the anti-flushing plate is ensured at the same time, and the anti-flushing plate is difficult to damage; a diversion plate which moves along with the anti-flushing plate is provided,so that the radial blocking can be provided, and generation of vortices can be inhibited; and by fully utilizing a refrigerating fluid, the heat exchange efficiency and the flow discharge capacity are improved, and the energy consumption is low.

The invention discloses a method for uniformly distributing holes in a light-emitting word based on contour offset. The method comprises the following steps: inputting a contour file to be processed, wherein the hole radius is R, an average interval between every two holes is Dave, a minimum interval is Dmin, and a distance between each hole and a contour boundary is Db; dispersing a contour curve group into a polygon group and calibrating the direction of each polygon; continuously offsetting the polygon group, wherein a first-time offset distance is Db, and a subsequent offset distance is Dave; generating a series of holes on each offset polygon at intervals Dave, wherein the circle centers of the holes are arranged on the offset polygon, and the radius is R; detecting a distance between every two obtained adjacent holes and deleting one of the holes when an interval between any two practical holes is less than a given Dmin value. The method has the benefits that the holes are distributed at equal distances in an offsetting way, the positions of the obtained holes are uniformly distributed and clear in arrangement, and the situation that the holes are overlapped or the interval is undersize can be avoided.