57results about How to "Does not affect the internal structure" patented technology

The invention relates to a preparation method of a fluorescent silicon nano-grain of rare-earth complex, belonging to the preparation method of fluorescent silicon nano-grain, in particular to a preparation method which enables the rare-earth complex to circularly link on the surface of the silicon nano-grain to make the fluorescent silicon nano-grain of rare-earth complex. The fluorescent silicon nano-grain of rare-earth complex has the advantages of good control performance, easy achievement, even made grain and strong fluorescence intensity. The preparation method adopts the tactics for multi-layer to modify, namely the fluorescent rare-earth complex is linked on the surface of the silicon nano-grain and circularly grafted by silane, which can make the quantity of the complexes linked on the surface of the silicon nano-grain to maximum and then obtains the fluorescent silicon nano-grain of rare-earth complex with strong fluorescence intensity, good stability and easy marking performance. The fluorescent silicon nano-grain of rare-earth complex adopts the preparation method that the nano-grain is surface functionalized after preparing the carrier of the nano-grain, then the surface radical of the grain is grafted after chemically linking the fluorescent rare-earth complex, finally the fluorescent silicon nano-grain is surface functionalized again after circularly grafting and multi-layer modifying.

The invention provides a safety catalyzing valve for a lead-acid storage battery. The safety catalyzing valve comprises a valve body, wherein the upper part of the valve body is hollow, and internally provided with a pneumatic safety valve of the lead-acid storage battery, and the lower part of the valve body is provided with an installing seat for a catalyst; a ventilating hole in communication with the pneumatic safety valve is arranged between the installing seat and the pneumatic safety device; an installing hole for the catalyst is arranged in the installing seat and filled with the catalyst, and a filtering layer is arranged outside the catalyst; and the catalyst is the catalyst for catalyzing hydrogen and oxygen to react to generate water. According to the safety catalyzing valve, the catalyst is filled in the lead-acid storage battery in a relatively reasonable mode with a relatively reasonable structure; the characteristics of the structure of the valve, the structure of the pneumatic safety device and the installing structure of the catalyst are organically and integrally fused; the safety catalyzing device is convenient to assemble and install without influence to the internal structure of the storage battery; and the catalyst has a long service life and high service efficiency, so water loss and floating current of the battery can be relatively reduced.

The invention provides a washing machine control method and device, a storage medium and a washing machine. A living body detection device is arranged on the outer side of an observation window of thewashing machine. The method comprises the steps as follows: when the washing machine starts a washing program, whether a washing machine lid is in a closed state or not is detected; if the washing machine lid is detected to be in the closed state, the living body detection device is started to detect whether living bodies exist in an inner drum of the washing machine; if living bodies are detected to exist in the inner drum of the washing machine, operation of the washing machine is forbidden, and a first prompt message is sent out and/or a door lock switch is turned off. By use of the scheme, whether the living bodies exist in the inner drum of the washing machine can be detected, and the problems of waterproof wiring of a sensor and the like are solved.

The invention discloses a polymer microsphere and a preparation method thereof. Microspheres include a core and surface grafts; the core is monodisperse polystyrene-divinylbenzene microspheres with a crosslinking degree of 60% to 90% and a particle size of 2 to 20 microns, and the surface is grafted The compound is polyglycidyl methacrylate or its derivatives. It uses Friedel-Crafts acylation reaction, using α-haloacyl halide as an acylating agent, and bonding initiator molecules on the surface of microspheres; using conventional atom transfer radical polymerization method, to initiate monomer glycidyl methacrylate Ester polymerization; ring-opening with different nucleophiles to introduce amino groups, hydroxyl groups, hydrazine groups, carboxyl groups and mercapto groups on the surface of microspheres. This type of polymer microsphere can be used as a separation material suitable for different chromatography such as high-efficiency ion exchange, chelation and high-efficiency affinity, and can also be used as a carrier for immobilizing certain enzymes and catalysts. It is a class of excellent functional microspheres.

The invention discloses a winding loosening judgment method based on transformer noise sound image graph, and belongs to the technical field of power transformer safety monitoring. Carrying out the image processing the transformer noise sound image graph by obtaining a transformer noise sound image graph, and obtaining a corresponding gray histogram, performing a statistical feature processing onthe gray histogram to obtain a statistical feature, obtaining whether the transformer is normally operated or not by the comparison of online measurement statistical feature with feature database according to the statistical feature. The adopted sound image graph is not affected by electromagnetic interference in the transformer substation, reducing the difficulty of signal extraction processing,the internal structure of the transformer is not affected during measurement, and no influence on normal operation is affected, can judge whether the transformer is loose or not without influencing the transformer.

The invention discloses a distal drainage device for surgical electrodes and a surgical electrode instrument. A liquid injection channel is arranged in the surgical electrode instrument. The distal drainage device for surgical electrodes includes a guide tube, a fixed sleeve, and a drainage tube. The guide tube is used for The electrode part of the electrode surgical instrument is installed, and the distal part of the guide tube is used to fix the electrode head of the electrode part, the fixed sleeve is sleeved on the periphery of the guide tube, and the proximal end of the drainage tube The part is fixedly connected to the fixed sleeve, and the distal part of the drainage tube is located at the periphery of the guide tube. The invention can not only make the outlet of the liquid outflow completely consistent with the electrode excitation area of ​​the electrode head, and the targeting positioning is more accurate, but also the assembly is convenient, the process is simple, the size of the drainage device can be adjusted with the size of the electrode head and the guide tube, and is not affected The location of the liquid outlet is limited, which can significantly reduce the processing cost, and is applicable to any form of surgical electrode instruments, and has good versatility.

The invention belongs to the technical field of sewage treatment, and provides a recyclable high-temperature-resistant photocatalytic film for sewage treatment and a preparation method thereof. The method comprises the following steps: adding polyimide, polyvinylpyrrolidone, tetrabutyl titanate and a complexing agent to N,N-dimethylacetamide to form a spinning solution, and carrying out electrospinning to obtain a composite hollow film with deposited nanometer titanium dioxide, then reacting with an ethanol solution of soluble cobalt salt and soluble cerium salt, and finally, carrying out low-temperature heat treatment and high temperature calcination to obtain the nanometer titanium dioxide-cobalt oxide-cerium oxide/polyimide composite hollow film. Compared with that prepared by conventional methods, the composite catalyst film provided by the invention has the advantages of supporting a photocatalyst firmly and uniformly, and having high catalytic activity, strong ability of catalytic degradation of pollutants and good high temperature resistance, can be used for purification treatment of high temperature sewage, is easy to recycle, has good environmental friendliness and is suitable for large-scale promotion and application.

The invention discloses a quickly cooled long-life conical rotor motor, belongs to the technical field of motors, and solves the problem that in the prior art, a conical rotor motor is prone to generating a large amount of heat, so that the conical rotor motor is difficultly quickly cooled. The quickly cooled long-life conical rotor motor comprises a shell and a rotating shaft. The rotating shaftis arranged inside the shell. A stator is connected onto the inner wall of the shell. The inner cavity of the stator is conical. A rotor is mounted on the rotating shaft, and is conical. A front end cover is mounted at the front end of the rotating shaft. The quickly cooled long-life conical rotor motor is characterized in that a fan brake wheel is connected with the rear end part of the rotatingshaft; an angle end heat conduction head is connected to the shell around the fan brake wheel; a brake cooling device is connected with the rear end of the shell; ventilation blades are mounted in thebrake cooling device; and a liquid cooling pipe is connected with the brake cooling device. The quickly cooled long-life conical rotor motor is good in cooling effect, fast to cool, stable and reliable in operation, and long in service life.

The invention discloses a fireworks lead conveying device. The fireworks lead conveying device comprises a driving wheel (1), a lead inlet guiding pipe (3), a lead outlet guiding pipe (4), a first roller (5) and a second roller (6), wherein a flexible conveyer belt (8) is mounted on the first roller (5) and the second roller (6) in a wrapping manner and partly wraps the periphery of the driving wheel (1); the lead inlet guiding pipe (3) is aligned with the wrapping inlet of the driving wheel (1) and the flexible conveyer belt (8), and the lead outlet guiding pipe (4) is aligned with the wrapping outlet of the driving wheel (1) and the flexible conveyer belt (8). The fireworks lead conveying device disclosed by the invention can maintain the quality of a lead and does not change the combustion efficiency of the lead.

The invention discloses a road friction increasing type road roller which comprises a steel wheel. The road roller is characterized in that the surface of the steel wheel is provided with an elastic rubber layer, so that in a flattening and compacting process of a slurry seal layer on the road surface, cusp aggregates in a slurry mixture of the slurry seal layer can be flattened and compacted, andflatness and compactness of the slurry seal layer can be improved without affecting an interior structure of the slurry seal layer. Therefore, construction time is sharply shortened, operating efficiency of the road friction is improved, and construction cost is sharply reduced, and noise caused by friction between the road surface and automobile tires can be effectively reduced by the flattenedand compacted slurry seal layer.

The invention relates to the technical field of assembling machining, and particularly discloses a truing method and device. The truing method and device are suitable for a side decoration strip, theside decoration strip comprises two arc parts and a straight part connected with the two arc parts, and the method is characterized by comprising the step that the inner side surfaces of the arc partsare subjected to treatment, and the length of the side decoration strip is changed. According to the truing method and device, the length of the side decoration strip is subjected to truing, and it can be ensured that the property of the side decoration strip is not changed, and the appearance is not damaged.

The invention provides a method for improving the quality of the inner surface of a 3D printed part. The method comprises the following steps that chemical plating is conducted on a printed part by utilizing a first material so as to deposit a first material layer on the surface of the printed part; and the printed part is placed into a vacuum furnace for heat treatment. According to the method, surface voids and tiny pits of the surface of the printed part with an internal groove structure can be filled with materials, the roughness of the inner surface and the outer surface of the printed part is reduced, and the surface quality of the inner surface and the outer surface of the printed part is improved; and in addition, due to the fact that the thickness of the first material layer usedfor coating a substrate of the printed part is smaller than 5 microns, the internal structure accuracy, the shape accuracy or the size accuracy of the printed part cannot be influenced.

The invention discloses relates to a magnetorheological shock absorber with an external coil. The magnetorheological shock absorber comprises a hydraulic cylinder body, a floating piston, a piston, a piston rod, a sealing cover, a coil, an external cylinder barrel, dustproof rings, an external end cover, a bottom limit element, a nut and a sleeve, wherein the floating piston plays a role of separating a compensation gas chamber from a hydraulic cavity; the piston is connected with the piston rod, and a bottom end is fixed to the bottom limit element through the nut; the bottom limit element is fixedly connected with the external cylinder barrel; the sleeve externally sleeves the hydraulic cylinder body; a bipolar coil is arranged in the sleeve; the dustproof rings are installed at the two ends of the sleeve; the piston is located at the central position of the bipolar coil; and during working of the shock absorber, the hydraulic cylinder body carries out reciprocating motion relative to the external cylinder barrel and the piston, and the magnitude of a magnetic field passing through a damping channel between the piston and the hydraulic cylinder body can be controlled through controlling a current of the external coil, so that the characteristic of a magnetorheological liquid is changed, and a purpose of controlling a damping force is achieved. The structure is convenient to install and simple in structure, production and maintenance costs are lowered, and a long service life is achieved.

The present invention relates to a method for the purification of alpha-Alpha12O3 whiskers previously obtained by vapor-liquid-solid deposition, under metal vapors-containing atmospheres. Said method involves the volatilization of metal impurities in controlled-atmosphere furnaces at the surface of the fibers and in the drops at the end of the fibers. The invention also relates to purified alpha-Alpha12O3 whiskers obtainable by a process as defined above and substantially free from metal impurities at the surface and at the end part of the fibers, as well as the use of the purified alpha-Alpha12O3 whiskers as defined above as fillers or reinforcement agents for the preparation of ceramic, metallic or polymeric composites.

The invention relates to an ultrasonic friction imprinting method and device for a thermoplastic polymer device. The method comprises the steps that a micro-feeding system detects that a mold and a thermoplastic polymer reach a critical inlet and outlet state; pressure is applied to the thermoplastic polymer through the micro-feeding system; an ultrasonic device arranged on the side surface of thethermoplastic polymer device is started before, during or after any one of the steps, wherein the ultrasonic frequency emitted by the ultrasonic device is 200 Hz-40 KHz; data of a temperature field and a stress-strain field in the thermoplastic polymer imprinting process are detected through the micro-feeding system; pressure of the micro-feeding system is maintained for a certain period of time;the ultrasonic device is stopped; and demolding is carried out. Through the friction effect of transverse ultrasonic vibration, the surface temperature of the polymer and the surface temperature of the mold are increased, the polymer is molten, then impressing of a micro-nano structure is achieved under the pressure effect, and moreover, the transverse vibration does not affect an internal structure of the thermoplastic polymer device.

The invention provides a screwing type press-fitting machine. The screwing type press-fitting machine is used for press-fitting a bearing sleeved on a workpiece, and comprises a press-fitting mechanism, a fixing mechanism and a driving part; the press-fitting mechanism comprises a shell and a pressing head; the interior of the shell is hollow, and one end of the shell is open; the interior of the pressing head is hollow, the two ends of the pressing head are open, and one end of the pressing head is detachably and fixedly connected to an open end of the shell and communicates with the shell; the fixing mechanism comprises a rotary guide seat, a counter-force connecting seat, a nut rotating seat, a stress nut and a fixing sleeve; the rotary guide seat is arranged in the pressing head, the interior of the rotary guide seat is hollow, and the two ends of the rotary guide seat are open; the counter-force connecting seat is arranged in the rotary guide seat, and a clamping gap is formed between the counter-force connecting seat and the rotary guide seat; the outer wall of the rotary guide seat is sleeved with the nut rotating seat; one end of the stress nut is in threaded connection with the nut rotating seat; one end of the fixing sleeve is connected to the stress nut; and one end of the driving part is slidably connected to the fixing sleeve, and the other end of the driving part is connected to the shell. According to the press-fitting machine, the detachable pressing head is adopted, and can be replaced with different pressing heads according to needs.

The invention discloses an interior equipment casing with high environmental adaptability. The casing includes an outer casing edge and an outer casing edge, wherein the outer casing edge forms an inner chamber, the inner chamber is used for accommodating a circuit board or a filler, a casing wall between the inner casing edge and the outer casing edge is internally provided with a gas passage structure, the gas passage structure includes at least a turning point, gas heated and expanded in the inner chamber can be partially exhausted through the gas passage structure, and the water can be further stopped from flowing into the inner chamber. The casing is advantaged in that through setting the gas passage structure, a problem of deformation caused by gas expansion due to heat in the equipment casing in a vehicle can be avoided, and the waterproof function can be further achieved.