35results about How to "Help to get out" patented technology

The invention relates to a chemical mechanical polishing solution for large-sized silicon wafers and a preparation method thereof, and the chemical mechanical polishing solution is mainly applied to the ultraprecision machining of large-sized semiconductor silicon substrate slices, and can obtain a nanometer-level ultrasmooth surface. The polishing solution consists of the following components inpercentage by weight: 5 to 50 percent of silicon dioxide abrasive, 1 to 10 percent of pH value regulator, 0.01 to 5 percent of surfactant, 0.01 to 0.05 percent of cleaning auxiliary, 0.01 to 2 percent of chelator and the balance of deionized water; and the silicon dioxide is added in the state of silicasol. Under proper polishing technological conditions, the polishing solution prepared with the components according to the contents can obtain a high-quality polished surface and meet the requirement of the semiconductor industry on the surface quality and removal rate of silicon substrate slices, and moreover, the invention has the advantages of low cost, easy cleaning, low corrosiveness and the like, and has a good application prospect.

The invention relates to a concentrated automatic control switching type feeding system and a control method thereof in the field of manufacturing of optical fiber. The system comprises a central material tank, a weighing device, a diaphragm pump, an air bubble early warning device, a control valve I, a control valve II, a control valve III, a control valve IV, a defoaming device, a coating filter, a main pipeline, a control valve V, a coating barrel, a charging pipe, a coating liquid level sensor, a discharging pipe, a central controller and an upper computer; the central material tank is placed on the weighing device and is connected with the diaphragm pump by a hose through a connector, the outlet of the diaphragm pump is connected with the air bubble early warning device, the coating filter is connected with the main pipeline, branches of the main pipeline are respectively connected with the coating barrel in each line, and the central controller is jointed with the upper computer.

The invention discloses a paper plate forming machine which is used for solving the current situation that high energy consumption and low efficiency are caused since paper plate forming machines arepowered by pneumatic pressure cylinders and hydraulic cylinders in the prior art. According to the key point of the technical scheme, the paper plate forming machine comprises a machine frame, stamping dies, paper board bins, guide rail sets, vacuum suction cup devices and paper board pushing devices. Each vacuum suction cup device comprises a lifting platform, a first lifting mechanism and a vacuum suction cup mechanism. Each vacuum suction cup mechanism comprises vacuum pipes, suction cups and an inflating and deflating assembly. Each inflating and deflating assembly comprises a first air cylinder and a first crank which drives the first air cylinder to act. Each first air cylinder is provided with a first chamber communicating with the corresponding vacuum pipes. The machine frame is further provided with a motor which drives the first cranks to rotate. The paper plate forming machine is low in energy consumption and high in efficiency and meanwhile reduces the probability of damageto paper boards.

The invention discloses a surface fractal strengthened water electrolysis hydrogen production device and method, and belongs to the technical field of electrolysis hydrogen production. The device comprises an anode plate and a cathode plate, and a first gas diffusion layer, a first catalyst layer, a proton exchange membrane, a second catalyst layer and a second gas diffusion layer are sequentially arranged between the anode plate and the cathode plate in the direction from the anode plate to the cathode plate; and convex-concave structures are arranged on the surface of the first gas diffusion layer and the surface of the second gas diffusion layer, and/or convex-concave structures are arranged on the surface of the first catalyst layer and the surface of the second catalyst layer. The convex-concave structures are arranged, and fractal treatment is performed to achieve hydrophilic and hydrophobic properties, so that separation of bubbles from orifices is facilitated, the gas coverage rate of the surfaces of the catalyst layer and the gas diffusion layer is reduced, the bubbles generated by reaction are promoted to quickly reach a polar plate runner, and the electrolysis efficiency is improved. According to the corresponding method, the water electrolysis hydrogen production device is used for electrolysis.

The invention discloses a vinasse waste liquid centrifuge. The vinasse waste liquid centrifuge comprises a cover, a drum, a spiral, a differential, a main motor and a feeding pipe; the drum is positioned in the cover; the spiral is positioned in the drum; spiral blades are arranged on the outer surface of the spiral; the main motor drives the differential to drive the drum; the drum is connected with the spiral through the differential; a material cavity is formed in the spiral; a pipe orifice of the feeding pipe extends into the material cavity; a discharge port is formed in the wall surfaceof the material cavity, is oblong and is aslant arranged; and the inclined direction of the discharge port is consistent with the inclined direction of the spiral blades. In the centrifuge, the discharge port is aslant arranged, and the inclined direction of the discharge port is kept consistent with the inclined direction of the spiral blades, so that the scour and the wear to the spiral blades in the extrusion process of solid materials are reduced, and the service life of the centrifuge is prolonged.

The invention relates to a cleaning agent composition, comprising an A agent and a B agent. The A agent and the B agent are stored independently. The A agent comprises a non-ionic surfactant and a dispersing agent, wherein the non-ionic surfactant is a fatty alcohol-polyoxyethylene ether; and the dispersing agent is selected at least one from an organic phosphonic acid, a poly-aspartic acid, a polyepoxysuccinic acid and a co-polymer and/or a homopolymer obtained by polymerization of at least one of an unsaturated organic acid, an unsaturated organic acid ester and an unsaturated organic acid anhydride. The B agent contains a foaming agent. The invention also relates to a method for cleaning a reverse osmosis membrane by using the above cleaning agent composition. A cleaning liquid prepared by the cleaning agent composition can clean the reverse osmosis membrane effectively, makes water yield of a reverse osmosis system restore basically, and can significantly reduce front-and-back pressure difference of the reverse osmosis membrane and reduce conductivity of produced water.

The invention discloses a dehydroxylation annealing method and device for a large-size optical fiber preform. The method comprises the steps of (1) putting the optical fiber preform into an annealing furnace; (2) heating the optical fiber preform to a destressing temperature through heating for four times; (3) carrying out heat preservation; and (4) cooling the optical fiber preform to a cooling temperature through cooling for four times. The optical fiber preform is heated to the destressing temperature through gradual heating for four times, so that the heat stability of the preform can be ensured; the condition that the internal heat of the preform can be slowly and uniformly emitted can be effectively ensured through gradual heating for four times; heating and cooling are carried out in a vacuum environment; and relative to a non-vacuum environment, the vacuum state is more conductive to separation of residual He and hydroxyl in the optical fiber preform and the effect is better.

The invention discloses an injection mold for a decorative ring, and solves the problem that the use effect of a decorative ring is influenced by abandoning a dense clamping structure due to the influence of factors such as an incompact traditional core pulling structure of an injection mold in the structural design of the decorative ring in the prior art. According to the invention, the decorative ring injection mold is characterized in that the decorative ring injection mold comprises a movable mold and a fixed mold; the movable mold comprises a movable mold bottom plate, a movable mold coreand an ejection mechanism; the movable mold core is provided with a forming convex ring, a first forming groove and a second forming groove on the parting surface of the movable mold; the movable mold core comprises a movable mold frame, a straight ejection block and a core pulling structure; the core pulling structure comprises a core pulling hole, a core pulling piece and a limiting sliding groove; the axis of the core pulling hole and the axis of the corresponding clamping hole to be formed are located on the same straight line; the other end of the core pulling piece is provided with a limiting clamping block matched with the limiting sliding groove in a clamped mode; and the limiting sliding groove inclines in the direction away from the clamping hole to be formed in the direction away from the movable mold core. The core pulling structure of the decorative ring injection mold is high in compactness.

The invention discloses a filtering process for producing and processing skim milk powder in the technical field of filtering processes for producing and processing skim milk powder. The filtering process comprises the following specific steps: step 1, sterilizing camel milk needing to be filtered; 2, guiding the treated camel milk into a filtering device to be filtered; step 3, degreasing the filtered camel milk without whey; and step 4, homogenizing the degreased camel milk without whey, adding other materials, and mixing to obtain skim milk powder; and after camel milk is filtered and separated every time, a filtering screen is jacked to a cleaning position by utilizing a hydraulic cylinder, meanwhile, a first sealing plate and a second sealing plate rotate to seal a first net rack and a second net rack respectively, an annular drainage pipe discharges water, a first filtering screen and a second filtering screen are washed, and the camel milk is cleaned. Substances on the first filtering screen and the second filtering screen flow down along with flushing, and the filtered substances are completely collected, so that the waste of the filtered whey-removed camel milk is avoided.

The invention provides an intelligent foam metal reinforced boiling heat transfer cooling device. The intelligent foam metal reinforced boiling heat transfer cooling device comprises a sealing cavity(5), wherein the sealing cavity (5) is filled with a refrigeration fluid (2); a bottom intelligent foam metal (3) is fixed on the inner surface of the bottom of the sealing cavity (5) and is immersedinside the refrigeration fluid (2); a top foam metal (7) is fixed on the inner surface of the top of the sealing cavity (5); a guide pipe (5) is arranged at the upper end of the side surface of the sealing cavity (5); a draught fan (1) is arranged on the outer surface of the top of the sealing cavity (5). The bottom intelligent foam metal (3) has a whole memory effect, and the porosities and poresizes of the foam metals change along with temperature. According to the cooling device provided by the invention, boiling heat transfer is reinforced by using the intelligent foam metals, the evaporation core and heat transfer areas are increased, the flow resistance is also reduced, and the escape speed of bubbles is increased effectively, so that the heat transfer quantity is obviously increased, and the cooling capacity is greatly strengthened.

The invention discloses printing equipment convenient to store. The equipment comprises a base, an intermediate platform and a spray trolley, the intermediate platform comprises a printing surface forholding printing materials, and a guide rail is arranged on the intermediate platform; the spray trolley is connected with the guide rail, and the spray trolley at least moves longitudinally or/and transversely along the guide rail parallel to the surface of the platform; and the base is arranged below the intermediate platform and is detachably connected with the intermediate platform. Modularization of the printing equipment helps to disassemble the printing equipment into a plurality of modules or even two modules quickly and conveniently, so that storage and transportation are carried outbased on the modules generated through disassembly, existing space can be made full use, and efficiency of storage and transportation is improved; after separating the modules, quick and simple assembly and restoration of a whole machine can be achieved according to requirements, an internal structure is protected from being exposed, and the modules are convenient to adjust in advance, so that the modules are quickly assembled and put into use after transportation, consumption of excessive manpower, material resources and time for adjusting after reaching a use site is avoided.

The invention discloses a multifunctional shoot nail assembly which comprises a nail rod and a shooting shell. A nail point is formed at the head end of the nail rod. The tail end of the nail rod is upward to form a spherical protrusion, and a cylinder extending upwards is formed at the top of the spherical protrusion. An external thread is reserved on the nail rod. The shooting shell comprises acylindrical shell. A division piece is arranged in the middle of the cylindrical shell. The inner diameter of the position, on one side of the division piece, of the tail end of the cylindrical shellis increased to form a spherical concave opening matched with the spherical protrusion. Multiple grooves extending upwards along the inner wall are formed in the inner wall of the spherical concave opening. Noise generated by the assembly during use is low, and the requirements of fast fixing security doors and plastics-steel doors and windows can be met.

The invention belongs to the field of machinery, and relates to tunnel self-adhesive type waterproof plate/waterproof and drainage plate adhesive tape production equipment, which comprises an extrusion device used for melting and plasticizing to form a continuous body and a forming device used for making the continuous body into a tape material; the downstream end of the forming device is sequentially provided with an edge cutting device used for trimming the edge of the tape material, a point broken line machining device used for manufacturing point broken lines on the tape material in the width direction and a slitting device used for slitting the tape material into a plurality of tapes in the width direction; the forming device comprises a rack; a first forming roller and a second forming roller are arranged on the rack and are arranged in parallel; a plurality of first hook-shaped grooves are arranged on the surface of the first forming roller; a plurality of second hook-shaped grooves are formed in the surface of the second forming roller; and a first press fit gap is formed between the first forming roller and the second forming roller. Hook-shaped structures can be machinedon the two faces of the adhesive tape, the requirement for manufacturing of the integrally-formed adhesive tape is met, and the production efficiency is high due to continuous production.