131results about How to "Short life" patented technology

The invention relates to a cold compressor and a dilution refrigerator adopting the cold compressor, the cold compressor comprises a driving part, an air cylinder and a piston, and further comprises a precooling refrigerator, the precooling refrigerator is connected with the air cylinder, and the compressor is precooled through the precooling refrigerator. The cold compressor can be used on a dilution refrigerating machine or a space dilution refrigerating machine, and compared with the prior art, the refrigerating machine is adopted for cooling the compressor, so that the compressor becomes the cold compressor, and therefore it is ensured that helium-3 is compressed at the low temperature.

The invention discloses material mixing equipment for hard alloy material processing, which comprises a stabilizing seat, a material mixing tank, a stirring structure, a powder feeding hole and a liquid feeding hole, and further comprises a lower powder butt joint structure, the stirring structure comprises a driving motor and an upper stirring rod, the lower powder butt joint structure comprises a limiting cylinder fixed at the bottom in the material mixing tank, and the limiting cylinder is fixed at the bottom in the material mixing tank; a lower stirring rod is movably mounted on the inner side of the limiting cylinder and is clamped with the upper stirring rod, stirring blades are arranged on the outer side of the lower stirring rod, and an outer sleeve ring is arranged on the outer side of the lower stirring rod and the outer side of the upper stirring rod; the lower flow penetrating structure comprises an annular table located below the stirring blades, the annular table is connected with the lower stirring rod and rotates along with the lower stirring rod, a plurality of sets of movable pressure applying frames are arranged at the upper end of the edge of the outer side of the annular table, and a pressure applying rod is arranged on the inner side of each movable pressure applying frame. And the uniformity of the mixing temperature is ensured.

The invention discloses a cold forging forming process and die for a triangular shaft of a clutch, and the cold forging forming process comprises the following steps: S1, blanking: straightening a wire rod material, and processing the wire rod material into a bar material longer than the triangular shaft; s2, annealing is conducted; s3, carrying out first surface treatment; s4, first extrusion is conducted, specifically, a floating die with a certain out-of-tolerance range is designed for the triangular shaft according to the shape of the triangular shaft, the bar subjected to first-time surface treatment is put into the floating die, pressure is applied from the two ends so that the bar can be upset to form a hexagon, the bar can extend out of three rectangular clamping positions in the radial direction of the hexagon, and a middle forging stock is formed; s5, carrying out non-oxidation annealing; and S6, carrying out secondary surface treatment. According to the cold forging forming process and the cold forging forming die for the clutch triangular shaft, the characteristic of near-net forming of materials can be utilized, a triangular shaft part which can be matched with a small amount of machining to have very high precision is formed, the material utilization rate can reach 53.4%, the machining time can be saved by at least 50%, and the production cost and the machining efficiency are remarkably improved.

The invention discloses a high-oxygen steel submerged nozzle as well as a preparation method and a use method thereof. A nozzle body comprises the following components: 31%-35% of C, 49%-54% of Al2O3 and 13%-16% of SiO2; the composite layer comprises the following components in percentage by weight: 26%-30% of MgO and 70%-74% of Al2O3; a coating is attached to the surface of the composite layer and comprises the following components: more than or equal to 99% of MgO; and the slag line part is made of a zirconium carbon material. The preparation method of the water gap comprises the steps of burdening, mixing, forming and firing. The obtained submersed nozzle product is preheated and cast-on for use, continuous casting of 1600-2000 tons of molten steel can be achieved for steel with the oxygen activity controlled to be 1.5 * 10 <-4 >-3.0 * 10 <-4 >, the inner surface of the refractory material is good, the situation that small pieces of the refractory material enter the molten steel after being eroded to form inclusions is avoided, meanwhile, the situation that after the submersed nozzle is eroded, the structural size in the nozzle changes can be prevented, and the service life of the submersed nozzle is prolonged. And therefore, the quality of the continuous casting billet is ensured.

The invention discloses a thermal management method and system of a power supply and an intelligent power supply, and the method comprises the steps: collecting m reference temperature data sets of m battery cells within a first preset time period; performing preprocessing operation on the m reference temperature data sets to obtain m temperature data sets; determining a first temperature value of the target power supply according to the m temperature data sets; predicting a predicted temperature value of the target power supply at the target moment according to the m temperature data sets and the first temperature value; determining a target working state of the target power supply according to the first temperature value and the predicted temperature value; and in a second preset time period, controlling a heat management module to perform heat management on the target power supply based on the first temperature value, the predicted temperature value and the target working state, so that the temperature of the target power supply returns to a preset temperature range. According to the embodiment of the invention, the thermal management effect of the power supply can be improved.

The present invention discloses a ceramic pump body, including a volute and a guard plate, the volute includes a shell and a volute liner; the guard plate includes a guard plate frame and a guard plate liner, and a first buffer layer is arranged between the shell and the volute liner; a through hole and a tapered hole are arranged in sequence from the outside to the inside in the middle of the volute, and the through hole is connected to the tapered hole through a first axial end face; a second buffer layer is arranged between the guard plate frame and the guard plate liner, and a shaft body and a tapered shaft are arranged in sequence on the guard plate, and the shaft body is connected to the tapered shaft through a second axial end face; the shaft body cooperates with the through hole, and the tapered shaft cooperates with the tapered hole; an annular space for placing a seal is arranged between the volute and the guard plate, which is surrounded by the first axial end face, the second axial end face, the inner wall of the through hole and the outer wall of the tapered shaft. In the ceramic pump body provided by the present invention, the medium will not contact the metal parts of the volute or the guard plate, and it not only has good wear resistance and corrosion resistance, but also the manufacturing cost can be controlled within a suitable range.

The present invention relates to the technical field of tractor front axles, and discloses a front axle of a medium-to-large horsepower tractor that is heightened and widened, including a tractor front axle, front axle side sleeves are fixedly arranged on both sides of the tractor front axle, a drive shaft is rotatably arranged in the middle position of the tractor front axle, a toothed disc is fixedly arranged at the rear end of the drive shaft, bevel gears are meshed on both sides of the toothed disc, and transmission rods are fixedly arranged at the opposite ends of two groups of bevel gears, a filling mechanism is arranged on the side of the front axle side sleeve close to the transmission rod, and universal couplings are arranged on the upper side of the transmission rod and the lower side of the filling mechanism. The heightened and widened front axle of a medium-to-large horsepower tractor described in the present invention can make it easier for the tractor to cross obstacles such as deep water areas, large rocks, etc. after being heightened, thereby enhancing the off-road capability of the vehicle.

The present invention discloses a residual current operated circuit breaker, belonging to the technical field of low-voltage electrical appliances. The residual current operated circuit breaker includes an electric leakage tripping pole module, and an L-pole circuit breaker module and an N-pole circuit breaker module disposed on both sides of the electric leakage tripping pole module, wherein the L-pole circuit breaker module includes an L-pole moving contact mechanism; the N-pole circuit breaker module includes an N-pole moving contact mechanism; the electric leakage tripping pole module includes an electric leakage jump buckle, an electric leakage lock buckle, a resetting member, a rocker arm, an assembling shaft and a tripping device; the rocker arm abuts against the resetting member; the assembling shaft is in linkage with the L-pole moving contact mechanism and the N-pole moving contact mechanism; the rocker arm is connected to one side of the electric leakage lock buckle; at least one of the rocker arm and the electric leakage lock buckle can abut against the assembling shaft; and when the electric leakage jump buckle is separated from the electric leakage lock buckle, the resetting member drives the rocker arm to rotate, so that at least one of the rocker arm and the electric leakage lock buckle pushes the assembling shaft. The L-pole circuit breaker module and the N-pole circuit breaker module are disconnected at the same time, and thus the disconnection capacity is improved.

The invention discloses a single-stage multi-port converter DC side current ripple suppression method and device and a storage medium, and the method comprises the steps: obtaining an initial three-phase sinusoidal modulation wave according to the AC side three-phase voltage and current of a converter; obtaining a battery current control value according to the DC side photovoltaic voltage and current; obtaining an asymmetric carrier wave according to the DC side photovoltaic voltage and the energy storage battery voltage; according to the initial three-phase sinusoidal modulation wave and the asymmetric carrier wave, a battery current actual value is obtained, iteration is carried out according to an error between the actual value and a control value, and a zero-sequence component when the error is smaller than an error tolerance is obtained; injecting the zero-sequence component into the initial three-phase sinusoidal modulation wave to obtain an improved modulation wave; and intersecting the improved modulation wave with the asymmetric carrier wave to obtain a PWM driving signal of the converter. According to the invention, direct-current side current ripple suppression and power distribution between optical storage are realized through a zero-sequence component injection method, and the method has the characteristics of remarkable ripple suppression effect, low implementation cost and the like.

The invention provides a built-in permanent magnet synchronous motorized spindle optimization design method for a high-precision numerical control machine tool, and aims to solve the problem that a conventional motorized spindle structure cannot adjust an axial preload and a radial external load in real time. The structure of the motorized spindle is optimally designed from three aspects of high-speed ceramic ball mixed bearing materials, axial preload real-time compensation and radial external load real-time compensation. The dynamic characteristics of the rotor system can be improved, and shafting vibration can be actively inhibited.

This utility model discloses a nanoimprinting machine, including an imprinting template mounting stage and a substrate mounting base. Multiple sets of suction cups (secondary) for adsorbing and fixing the substrate are mounted on the upper center of the substrate mounting base. The imprinting template mounting stage is positioned above the substrate mounting base. Above the positions where the suction cups (secondary) are positioned to fix the substrate, multiple sets of suction cups (tertiary) for adsorbing and fixing the imprinting template are provided, with the adsorption ends of the suction cups (tertiary) forming the adsorption end face of the imprinting template. Each set of suction cups (tertiary) is connected to a suction cup mounting plate. The suction cup mounting plate is also connected to multiple sets of laser sensors for detecting the tilt of the adsorption end face of the imprinting template relative to the substrate surface. A suction cup fixing component is located at the upper end of the suction cup mounting plate, and multiple voice coil motors are located at the upper end of the suction cup fixing component for adjusting the tilt of the adsorption end face of the imprinting template. This utility model solves the leveling problem during the imprinting process, avoids damage to the template, substrate, and imprinting head, improves the performance of the nanoimprinting machine, and achieves better nanoimprinting results.

The utility model provides a kind of high-temperature-resistant long-life ball bearing retainer, it is related to bearing retainer technical field, and it includes: hold frame body;The retainer body is annular structure, and ball hole is arranged in annular array shape on the inner wall of retainer body;Annular array shape is arranged in the through hole of the outer wall of retainer body, and the through hole is circular hole structure, and the through hole arranged in annular array shape is jointly composed of the heat dissipation structure of retainer body.Utilize nickel-based alloy high melting point (1300 DEG C above) and strong oxidation resistance, so that retainer is not easy to heat softening or oxidation corrosion failure under high temperature working condition (such as industrial kiln, aeroengine), directly prolongs the service life under high temperature environment;Through type circular through hole forms three-dimensional heat dissipation channel, cooperates the forced convection of lubricating medium (oil / gas), and internal heat is quickly taken away.For example in high-speed motor, airflow passes through through hole can make retainer temperature reduce 20%~30%, avoid local overheating to cause material failure.

The invention provides a photoconductive switch of a comb electrode, which comprises a semi-insulating gallium arsenide substrate layer, a low-temperature gallium arsenide layer and an insulating protective layer, and is characterized in that the low-temperature gallium arsenide layer is formed on the semi-insulating gallium arsenide substrate layer, and the insulating protective layer is arranged on the low-temperature gallium arsenide layer; a switch anode and a switch cathode are respectively formed on the inner side of the low-temperature gallium arsenide layer surface insulation protection layer; a comb-shaped electrode is arranged on the surface of the low-temperature gallium arsenide layer and located at the switch anode. According to the invention, by arranging the comb-shaped electrode structure, a plurality of comb-tooth electrodes which are distributed in a staggered manner are formed in the electrode region, so that the action area of incident light and a semiconductor active region is increased under an illumination condition, and generation and collection of photon-generated carriers are facilitated; meanwhile, the distribution state of an electric field near the electrode is improved, and the possibility of local electric field concentration is reduced; in addition, a low-temperature gallium arsenide material is adopted as the photoconductive layer, the service life of a current carrier is short, and the device is suitable for photoelectric trigger application scenes with requirements for response speed and stability.

This invention discloses a pneumatic hand rehabilitation system and method, comprising: in a model calibration phase, collecting multi-channel surface electromyography (EMG) signals generated by the forearm of the target patient when performing different hand gestures, and constructing coarse and fine classifier training sets; training multiple heterogeneous classification models using the coarse and fine classifier training sets respectively, and selecting the optimal coarse and fine classifiers; in a rehabilitation training phase, collecting multi-channel EMG signals generated by the forearm of the target patient in real time, calling the trained coarse and fine classifiers for two-stage hierarchical decoding, and outputting motion control commands; a pneumatic execution module parsing the motion control commands and driving the air bladder deformation of the pneumatic rehabilitation glove to drive the patient's hand to complete the corresponding rehabilitation movements. This invention can significantly improve individual adaptability, multi-finger recognition accuracy, and control stability under different physiological characteristics of patients and complex fine motor scenarios.

The application discloses a solar cell and a printing plate assembly. The solar cell comprises a plurality of sub-grid lines extending along a first direction, the plurality of sub-grid lines are arranged in a plurality of rows and a plurality of columns, a plurality of odd-numbered column sub-grid lines correspond to each other, a plurality of even-numbered column sub-grid lines correspond to each other, the even-numbered column sub-grid lines have an offset along the column direction relative to the odd-numbered column sub-grid lines, at least one main grid line extending along a second direction, the first direction intersects the second direction, the main grid line comprises a first lap portion and a second lap portion, the first lap portion and the second lap portion are alternately arranged along the second direction, so that the first lap portion laps the odd-numbered column sub-grid line, the second lap portion laps the even-numbered column sub-grid line, the first lap portion and the second lap portion are connected, adjacent the first lap portion and the second lap portion have a first interval along the first direction, so that the odd-numbered column sub-grid line and the even-numbered column sub-grid line have a second interval along the first direction.

The invention discloses a novel energy wireless transmission device and method based on electric field coupling, and aims to solve the problems that an existing parallel coupling mechanism has relatively serious electric field dissipation and a stacked coupling mechanism is insufficient in power transmission capability. The energy transmitting assembly and the energy receiving assembly are of an oppositely-embedded disc structure, a double-LC type resonance compensation network is adopted, and constant current output irrelevant to a load can be achieved. Compared with a parallel disc coupling mechanism, the electric field dissipation of the system to the external environment can be effectively reduced; compared with a stacked disc coupling mechanism, the power transmission capability of the coupling mechanism can be ensured. The power supply slip ring adopting the electric field coupling type wireless power transmission technology is high in electromagnetic interference resistance, small in size, light in weight and low in cost, the problems of abrasion and abrasive dust in power supply of a rotary slip ring are fundamentally solved, and meanwhile the cost and the weight of a power supply device are reduced. The invention relates to the field of wireless power transmission.

The utility model discloses a contact part and relay, this contact part includes at least one switch module, this switch module includes at least two along the first direction arrangement's moving contact piece, and with each moving contact piece respectively corresponding at least two static contact piece, in switch module, each moving contact piece has the fixed end and the movable end along the second direction distribution, and the fixed end is opposite the static contact piece fixed of this moving contact piece, and the movable end is suitable for the direct action or swing in third direction opposite this moving contact piece's fixed end to with corresponding static contact piece close or disconnect, wherein, at least two in the first direction adjacent moving contact piece's movable end is opposite along the second direction, and the second direction is perpendicular with the first direction or each other has the angle of clamping, and the third direction is perpendicular with the first direction, the second direction all. Adopt above -mentioned technical scheme, can improve the problem that traditional relay contact part occupies big space.

The present application provides a positive electrode plate, a secondary battery, a battery module, a battery pack, and a power consuming device; the positive electrode plate comprises a positive electrode current collector and positive electrode film layers having a single-layer or multi-layer structure provided on at least one surface of the positive electrode current collector; when the positive electrode film layers have a single-layer structure, at least one of the positive electrode film layers comprises a first positive electrode active material and a second positive electrode active material selected from LiFePO4, carbon-coated LiFePO4, LiFebDcPO4 and carbon-coated LiFebDcPO4; and / or when the positive electrode film layers have a multi-layer structure, at least one layer of the at least one of the positive electrode film layers comprises the first and second positive electrode active materials; and the first positive electrode active material comprises an inner core containing Li1+xMn1-yAyP1-zRzO4, a first coating layer containing pyrophosphate and phosphate, and a second coating layer containing a carbon element. The secondary battery made of the positive electrode plate of the present application has high energy density, high rate performance, good kinetic performance, long low-temperature cycle life, and high low-temperature cycling capacity retention rate.

The invention relates to a preparation method of a pixel defining layer, and aims to realize a coloring pattern with low degassing amount and water content on an electrode substrate, so that the color becomes bright, the reliability of a display is improved, and the service life of the display is prolonged. That is, when the outgassing amount of the panel after the post-baking treatment is 15 ppm or more or the water content is 50 ppm or more, the outgassing amount and the water content may be incentive for the reduction of the brightness and the shortening of the service life due to pixel shrinkage, so that in order to contain the coloring agent of the present invention and to minimize the outgassing amount and the water content after the completion of the post-baking treatment process, in the post-baking treatment step, the outgassing amount and the water content after the completion of the post-baking treatment process are reduced. In this way, sufficient heat and time are maintained, and sufficient fume is generated, so that outgas generation and tax content in the panel state are minimized.

The utility model relates to the field of MPP pipes, and discloses an MPP pipe with a buffer mechanism, which comprises a three-way pipe body, a fixing plate is fixedly connected inside the three-way pipe body, the upper end of the fixing plate is detachably connected with a bottom plate, the bottom of the bottom plate is provided with a mounting unit, the upper surface of the bottom plate is fixedly connected with an elastic piece, and the elastic piece is fixedly connected with the buffer mechanism. A buffer plate is fixedly connected to the top end of the elastic piece, a buffer pad is fixedly connected to the upper surface of the buffer plate, a protection unit is arranged on the outer side of the buffer plate, a fixing ring is fixedly connected to the upper end of the interior of the three-way pipe body, and a threaded groove is formed in the surface of the inner wall of the fixing ring. According to the three-way pipe, through cooperation of the bottom plate, the installation unit, the elastic piece, the buffer plate, the buffer pad and the protection unit, water flow flowing downwards through the upper end of the three-way pipe body can be guided and buffered, and the water flow can be directly divided towards the left side and the right side.

The present application provides a kind of can inhibit life reduction's human-powered vehicle's assembly and gear.The human-powered vehicle's assembly includes: shell;And installation part, it is configured to be provided in shell, is installed in the support portion of human-powered vehicle by fastener, installation part includes: metal base;Metal connecting portion, it is configured to be provided in base and be connected with fastener;And intermediate portion, it is provided between connecting portion and base, base includes the first material with first standard electrode potential, connecting portion includes the second material with second standard electrode potential, intermediate portion is formed by third material or fourth material with electric insulating property, the third material has third standard electrode potential, and the difference between third standard electrode potential and first standard electrode potential and the difference between third standard electrode potential and second standard electrode potential is less than the difference between first standard electrode potential and second standard electrode potential respectively.

The invention relates to the technical field of preparation of methanol through hydrogenation, in particular to a preparation method and application of a hydrophobic supported catalyst, and the preparation method comprises the following steps: S1, preparing a mesoporous gamma-Al2O3 carrier by adopting an evaporation-induced self-assembly method; s2, carrying out hydrophobic modification on the gamma-Al2O3 carrier by adopting a method of heating in a water bath kettle at a constant temperature and a low temperature and adopting silane reagents such as dimethyl diethoxy silane, propyl trimethoxy silane, octyl trimethoxy silane and the like; s3, loading Cu and ZnO by adopting a wet impregnation method or an easy impregnation-capture method; the surface property of the gamma-Al2O3 material is improved through hydrophobic modification of a methyl group, and the catalyst prepared by the method has higher hydrophobicity and has higher methanol selectivity and reaction stability compared with an unmodified catalyst in the reaction of synthesizing methanol through co-hydrogenation of carbon monoxide and carbon dioxide.

The present invention provides a method for optimizing a memory and a cache block, wherein the memory includes: firmware, in which a free list, a write cache list and a read cache list are arranged; when performing a read and write operation, the main control unit is used to call a cache block from the write cache list and the free list to perform a write operation, and to call a cache block from the read cache list and the free list to perform a read operation; when performing a recycling operation, when the mapping relationship of the host data to be erased matches the mapping relationship of the host data stored in a certain cache block in the write cache list and the read cache list, the host data of the cache block is erased, and the relevant information of the cache block is stored in the free list. Through the method for optimizing a memory and a cache block provided by the present invention, the allocation mode of the cache block can be optimized, so that the cache blocks can be mixed in different scenarios.

The present application relates to the technical field of molecular sieve, in particular to a kind of self-supporting MFI nanosheet molecular sieve and its preparation method and purposes, the preparation method of the self-supporting MFI nanosheet molecular sieve includes the following steps: 1) after mixing silicon source, aluminium source, alkali source, template agent and water, obtain gel mixture;2) the gel mixture obtained in step 1) is crystallized, i.e. the self-supporting MFI nanosheet molecular sieve is obtained;Wherein, the template agent is imidazolyl quaternary ammonium salt compound.The self-supporting MFI nanosheet molecular sieve prepared in the present application does not need expensive surfactant, no phosphorus species is left in channel after calcination, the range of silicon-aluminum ratio is wide, and it is simple and easy to repeat.

The application discloses an oil core separated atomizer, which comprises an oil storage device body, the oil storage device body and an atomizing core are detachably connected, the oil storage device body is internally provided with an oil storage cavity, the bottom of the oil storage device body is provided with an insertion channel communicated with the oil storage cavity, the atomizing core is inserted into the oil storage cavity through the insertion channel, the atomizing core is internally provided with a heating cavity, the heating cavity is provided with a heating core, the outer wall of the atomizing core is provided with an oil inlet hole corresponding to the heating core, and the oil inlet hole is sealed in the insertion channel; the atomizing core can move up and down along the insertion channel, the atomizing core can move the oil inlet hole from the insertion channel to the oil storage cavity to allow the oil inlet hole to take in oil, and the atomizing core can move the oil inlet hole to the insertion channel again to form a sealing structure and be isolated from the oil storage cavity. The atomizing core can move up and down in the insertion channel, the oil inlet hole on the atomizing core is communicated with or isolated from the oil storage cavity, and the application can prevent the tobacco tar in the oil storage cavity from entering the heating core through the oil inlet hole to corrode the heating core.

The invention discloses a fuel cell system and a water state control method thereof, and relates to the technical field of fuel cells, the system comprises a fuel cell stack, and a bipolar plate of the fuel cell stack is internally provided with a cooling liquid flow channel for introducing a cooling liquid with a set temperature; a magnetic heat conversion device is arranged on the outer side of the cooling liquid flow channel; the cooling liquid circulation subsystem is communicated with a cooling liquid flow channel in the fuel cell stack through a pipeline; and the water state control subsystem can monitor the temperature of the cooling liquid entering and exiting the fuel cell stack and the spatial distribution of different forms of water in the fuel cell stack, and respectively controls the working state of the cooling liquid circulation subsystem and the working state of the magnetic-thermal conversion device according to the temperature and water state distribution information. According to the fuel cell system and the water state control method thereof, the uniform distribution of water states between single sheets and in the sheets in the low-temperature rapid cold start and normal operation process can be realized, the occurrence of local water flooding or film drying faults is avoided, the output performance of the fuel cell system is improved, and the service life of the fuel cell system is prolonged.

The invention relates to the technical field of rocket launching platform design and application, in particular to a modular application method of a reconfigurable rocket launching platform, and solves the technical problem that existing launching work generally needs to carry out new launching platform design and demonstration according to rocket requirements. According to the method, a main control unit, a supporting unit, a filling unit and a testing unit framework of a launching platform are formed according to different rocket launching requirements; a plurality of units with different functions are stored in the launching site according to the number of stations, the requirements of rocket launching on a launching platform can be received, and the units with the functions are dispatched according to the actual requirements of a rocket under the dispatching of the main control unit; the unit for supporting the final assembly goes to a final assembly workshop to support rocket final assembly work; under the condition that part of the units do not need to participate in final assembly work, the parts of the units can directly go to a transmitting station for standby preparation; after the rocket is subjected to final assembly, the rocket is transported to a launching station through the units participating in final assembly work in a cooperative mode, and after launching is completed, all the units are withdrawn.

The utility model relates to equipment capable of carrying out composite chemical nickel plating for a long service life. The equipment comprises a working tank, an adjusting tank, a liquid storage tank, a filter and a clear liquid tank which are arranged in sequence, the working tank and the adjusting tank are communicated with each other through a circulating pipeline; liquid inlets and liquid outlets of the working tank, the adjusting tank, the liquid storage tank, the filter and the clear liquid tank are communicated through a circulating pump assembly; upper covers are arranged on the top surfaces of the working groove and the adjusting groove; a temperature control heating assembly, a PH detection assembly and an air stirring nozzle are arranged in each of the working tank and the adjusting tank; upper covers of the working groove and the adjusting groove are respectively provided with a working solution sampling port and a liquid medicine adding port; a workpiece to be machined is arranged in the working groove. According to the utility model, liquid in the working tank and the adjusting tank can efficiently and circularly flow, crystal connection is avoided, filtered solid and liquid can be separately stored, and the problems of instability and short service life of the composite chemical nickel plating working liquid are avoided.

The application relates to the technical field of movable floors, and discloses a double-layer ventilation and heat dissipation type anti-static movable floor, which comprises a base plate, a plurality of mounting holes are arranged on the base plate, support plates are fixedly connected to the two sides of the top of the base plate, a floor tile body is placed at the bottom of the support plate, a strip-shaped groove is arranged on the periphery of the floor tile body, a rubber strip is mounted in the strip-shaped groove, a plurality of anti-skid blocks are fixedly connected to the top of the floor tile body, the spacing between rock wool boards and the floor tile body is 4CM, heat generated by electronic equipment can be efficiently dissipated, and the performance of the equipment can be effectively prevented from being affected by high temperature or the service life of the equipment can be effectively prolonged; meanwhile, the mounting holes of the base plate enhance the stability of the whole in connection with the ground, the rubber strip on the periphery of the floor tile body improves the sealing property, the anti-skid blocks improve the use safety, the cooperation of the dovetail-shaped mounting grooves and the wedges makes the installation more convenient and the splicing more firm, so that the floor has the advantages of structural stability, efficient installation and the like while ensuring ventilation and heat dissipation.

This invention discloses a novel hybrid power system, belonging to the field of engine technology, applicable to horizontally opposed engines. By optimizing the shapes of the cylinder head, intake manifold, and piston, airflow is guided to form a concentrated and powerful tumble flow. During the compression stroke, this creates a squeezing impact tumble flow, breaking it up before ignition and combustion, thus improving combustion efficiency. The crankcase has a skeleton structure, simplifying the manufacturing process and eliminating the need for mold casting. All components can be machined. The lubricating oil passages within the crankcase are formed by splicing oil passages from various components; short sections of the oil passages are easy to machine, and blockages are easily disassembled and cleared. A rocker arm simultaneously drives two intake valves, with equal distances from both valves to the rocker arm, allowing for simultaneous entry and exit of both valves. This provides good coordination, reduces wear and noise, and ensures good sealing.