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85results about How to "Deep" patented technology

Pipe-jacking working well applicable to desert waterless sand area and construction method

The invention provides a pipe-jacking working well applicable to desert waterless sand area and a construction method. The pipe-jacking working well is characterized in that a plurality of bore pilesare circumferentially uniformly arranged around the circle center the working well to form the main protecting and stress structure of the working well, a crown beam is arranged at the top of each bored pile, each circular crown beam and the working well are of a concentric circle structure, a liner is located on the inner side of each bored pile and vertically arranged along the depth direction of the working well, hidden beams are embedded into each liner and arranged at intervals along the length direction of the liner from top to bottom, a bottom plate is located at the bottom of the working well, a well bottom reinforcing jet grouting pile is arranged below the bottom plate, and hole reinforcing jet grouting piles located at positions where jacking pipe joints enter and exit holes arearranged on the outer sides of the bored piles. The pipe-jacking working well has the advantages that soil stability during excavation can be guaranteed by the bored piles, and the bored piles can bear large counter force needed by pipe-jacking construction; the liners can increase sand stability among the piles and evenly transmits horizontal load to the bored piles.
Owner:CHINA TIESIJU CIVIL ENG GRP CO LTD +1

Lithium-supplementing porous silicon monoxide negative electrode material for lithium ion batteries and preparation method thereof

The invention relates to a lithium-supplementing porous silicon monoxide negative electrode material for lithium ion batteries and a preparation method thereof, and belongs to the technical field of preparation of lithium ion battery materials. The lithium-supplementing porous silicon monoxide negative electrode material is characterized in that the lithium-supplementing porous silicon monoxide negative electrode material is of a core-shell structure, porous silicon monoxide serves as an inner core, a nitrogen-doped carbon material serves as a shell, and the thickness of the shell is 50-500 nm. The lithium-supplementing porous silicon monoxide negative electrode material has the advantages that a carbon layer is uniformly deposited on the surface of the porous silicon monoxide, so that theporous silicon monoxide is prevented from directly contacting with the electrolyte, the occurrence probability of side reactions is reduced, and the electric conductivity is improved; meanwhile, by adopting the nitrogen-doped carbon material, the electric conductivity of a cladding layer can be further improved, and accordingly, the rate performance in lithium-supplementing porous silicon-carboncompounding is improved.
Owner:CHENGDU EMINENT NEW ENERGY TECH CO LTD

Method and device for improving hardness of inner wall of steel tube

The invention provides a method and device for improving hardness of the inner wall of a steel tube. A scanning type induction hardening process is adopted, heat treatment is carried out on the inner wall of the whole steel tube, an induction coil is placed on the steel tube, and the steel tube rotates and relatively moves relative to the induction coil; in the process that the steel tube and the induction coil relatively move, the induction coil is powered on to heat, and the heated steel tube is instantly subject to water spraying cooling after heating; the heating frequency is selected to range from 500 Hz to 2000 Hz; and the speed of movement of the steel tube relative to the induction coil is between 3 mm/s and 6 mm/s, and the rotating speed of the steel tube ranges from 5 rpm to 20 rpm. Compared with a conventional manner that heat treatment is carried out on the steel tube or the steel tube is not treated, the skin effect of induction heating is used, in the heating process, the temperature of the inner wall of the steel tune is high, the temperature of the outer wall is low, and a temperature gradient is formed; after water spraying cooling is carried out, the aim of improving the hardness and the abrasive resistance of the inner wall is achieved; and meanwhile the outer wall basically keeps mechanical properties of toughness, strength and the like of an original matrix structure.
Owner:BAOSHAN IRON & STEEL CO LTD

Laser shot blast-rolling reinforcement compound device of rotary body and method thereof

ActiveCN110512069ARealize automatic focusEnhanced precisionNumerical controlLaser beams
The invention provides a laser shot blast-rolling reinforcement compound device of a rotary body and a method thereof. The laser shot blast-rolling reinforcement compound device comprises a laser emitting device, a light path conveying device, a numerical control platform and a rolling head; the laser emitting device is used for generating laser beams; one end of the light path conveying device isused for inputting the laser beams, the other end of the light path conveying device is provided with the rolling head, and the rolling head is in contact with the rotary body and used for carrying out rolling reinforcement on the surface of the rotary body while the laser beams are enabled to penetrate through the rolling head so as to perform laser shot blast on the surface of the rotary body;the rotary body is fixed by the numerical control platform through a first rotating device; and the numerical control platform is used for fixing the light path conveying device through a second rotating device, which is used for enabling the rolling head to rotate around the rotary body. According to the laser shot blast-rolling reinforcement compound device of the rotary body and the method thereof, a pressure spring in the rolling head is adjusted to obtain the required rolling load, a laser is guided through the light path system, automatic focusing of the laser shot blast process is realized, and compound surface reinforcement of a complex curved surface can be accurately realized.
Owner:JIANGSU UNIV

Urine sampling device for urology departments

The invention provides a urine sampling device for urology departments. The urine sampling device comprises a flow guide cup, a sampling tube, a flow distribution device and a support portion. A largeoblique opening is formed in the upper portion of the flow guide cup, urine can flow into the large oblique opening, a collecting tube is arranged on the lower portion of the flow guide cup, an oblique flow guide tube is arranged on a side of the collecting tube, an elastic rubber membrane which is positioned on the lower end of a communication opening of the oblique guide tube and the collectingtube is arranged inside the collecting tube, and the sampling tube is arranged on the lower portion of the collecting tube; a [-shaped handle is arranged on the right side wall of the flow guide cup,the flow distribution device comprises a communication head, a push rod, a guide rod, a sleeve and a return spring, the communication head is positioned in the collecting tube, and the support portion is used for stably supporting the flow guide cup. The urine sampling device has the advantages that the urine sampling device is convenient to operate in acquisition procedures when used for acquiring the urine, and is clean and hygienic, and midstream urine can be acquired by the urine sampling device in a high-quality manner.
Owner:QIANFOSHAN HOSPITAL OF SHANDONG

Refrigerator capable of dissipating heat from bottom

The invention provides a refrigerator capable of dissipating heat from bottom. The refrigerator comprises a refrigerator body, condenser, a compressor, a convection fan and a wind shielding strip, wherein a compressor bin is arranged on the rear side of the bottom of the refrigerator body, and the compressor bin is in communication with the space below the refrigerator body through an air inlet and an air outlet which are transversely arranged at the bottom of the refrigerator body side by side; the condenser and the compressor are transversely arranged in the pressing machine bin side by side; the convection fan is arranged in the compressor bin and is located between the condenser and the compressor so as to promote air to be blown from the condenser to the compressor; the front-back extending wind shielding strip is arranged on the bottom surface of the refrigerator body and is positioned between the air inlet and the air outlet, so that when the refrigerator is placed on a supporting surface, the wind shielding strip can transversely divide the space between the bottom surface of the refrigerator body and the supporting surface, the external air is allowed to enter the compressor bin from one side of the wind shielding strip through the air inlet, the condenser is cooled, then the air is blown to the compressor through the convection fan, and finally the air flows out of the air outlet to the other side of the wind shielding strip; and the wind shielding strip is configured to rotate around an axis extending forwards and backwards, so that the distance between the bottom end of the wind shielding strip and the bottom surface of the refrigerator body can be adjusted according to the concave-convex degree of the supporting surface, and therefore the bottom end of thewind shielding strip can be attached to the supporting surface.
Owner:HAIER SMART HOME CO LTD

Plasma surface treating device for anti-abrasion tamping pick for railway and using method thereof

The invention discloses a plasma surface treating device for an anti-abrasion tamping pick for a railway and a using method thereof, and relates to a surface treatment device and a using method thereof. The problems of complicated technology for treating the surface of the anti-abrasion tamping pick for the railway and the difficulty in guaranteeing the performance are solved. The device consists of a cooling water channel, an argon-nitrogen mixture gas channel, a high temperature resistance ceramic element, a tamping pick head reservation port, a high temperature resistance sealing piece, a vacuum pump air extraction channel, a detachable stainless steel plasma generator entity and a reaction chamber. The using method comprises the following steps of: 1, putting the tamping pick into the reaction chamber, sealing and vacuumizing the chamber; 2, filling argon and nitrogen into the reaction chamber, applying square negative pulse voltage to ionize argon and nitrogen mixed gas, and forming nitrogen-containing high temperature plasmas; and 3, hitting the surface of the tamping pick to form a modified layer, namely finishing surface treatment for the tamping pick. The device and the using method thereof are applied to the field of surface processing.
Owner:美戈利浙江轨道交通研究院有限公司

Self-traveling type intelligent continuous dynamic compactor

The invention discloses a self-traveling type intelligent continuous dynamic compactor which comprises a crawler excavator, a crawler excavator power system, a crawler excavator self-traveling mechanism and a compaction mechanism, wherein the crawler excavator power system comprises an oil tank, an oil pump, a heat dissipater and an engine; the crawler excavator self-traveling mechanism comprises a traveling frame, traveling wheels, a traveling crawler and a self-traveling control system; the compaction mechanism comprises a stander, a third oil cylinder, a movable pulley, a soft connection body, a fixed pulley and a rammer; a stander is connected with a supporting wheel and is provided with a compaction density detection system; a hydraulic system and an intelligent control system are arranged on the crawler excavator; a third connection plate is connected to the stander; one end of a connection arm is connected with the crawler excavator, and the other end of the connection arm is connected with the third connection plate. The self-traveling type intelligent continuous dynamic compactor is easy to use and operate, has a self-traveling function and can intelligently realize continuous compaction; furthermore, the compaction power is higher, and the compaction thickness and the compaction influence depth are large; the self-traveling type intelligent continuous dynamic compactor can accurately detect the compaction density and work stably and reliably.
Owner:西安长大公路养护技术有限公司

Refrigerator for cooling from bottom part

The invention provides a refrigerator which comprises a tank, a condenser, a compressor, a convection fan, and a windshield strip extending front and back. A pressing machine cabin is arranged on theback side of the bottom part of the tank and communicates with an external space under the tank through an air inlet and an air outlet located in the bottom part of the tank and horizontally arrangedside by side; the condenser and the compressor are horizontally arranged in the pressing machine cabin side by side; the convection fan is arranged in the pressing machine cabin, is located between the condenser and the compressor, and is used for promoting air to blow to the compressor from the condenser part; and the windshield strip can be arranged in a sliding chute extending front and back arranged on the bottom surface of the tank in a front-and-back push-and-pull way, and is located between the air inlet and the air outlet, so that when the refrigerator is placed on a support surface, aspace between the bottom surface of the tank and the support surface is horizontally separated, and external air is allowed to enter the pressing machine cabin from one side of the windshield strip through the air inlet, firstly cools the condenser, is blown to the compressor through the action of the convection fan, and is finally discharged from the air outlet to the other side of the windshield strip.
Owner:HAIER SMART HOME CO LTD

Preparation method adopting low-temperature boronizing for wear-resistant surface of nodular cast iron

ActiveCN111979513ALower boronizing temperatureHigh hardnessSolid state diffusion coatingDuctile ironWear resistance
The invention discloses a preparation method adopting low-temperature boronizing for a wear-resistant surface of nodular cast iron. The preparation method comprises the following steps: firstly, pretreating the nodular cast iron, then preparing a powder boronizing agent and a sealing material, then carrying out boronizing treatment, and finally, carrying out boronizing aftertreatment, so that thehigh-hardness boronized surface is obtained, wherein the step of carrying out boronizing treatment comprises the following substeps: carrying out pre-boronizing treatment on an iron container so thatthe iron container can serve as a boronizing tank, namely, filling the iron container with the boronizing agent, carrying out compacting, carrying out sealing, carrying out heating to 950 DEG C, keeping the temperature for 6 hours, and carrying out cooling; filling the boronizing tank subjected to pre-boronizing treatment with the uniformly mixed boronizing agent, burying the pretreated nodular cast iron sample in the boronizing agent, filling the whole tank with the boronizing agent, compacting the boronizing agent, and finally, sealing the box with the prepared sealing material; and heatingthe sealed container to 200-400 DEG C and keeping the temperature for 1-2 h, wherein the boronizing time is controlled to be 1-24 h. While the boronizing temperature is reduced, a boronized layer which is large in thickness and is uniform can be obtained, and then the microhardness and wear resistance of the nodular cast iron are effectively improved.
Owner:XIAN UNIV OF TECH

Embedded type net-cage culture system

The invention discloses an embedded type net-cage culture system. The system includes a breeding floating platform, a first net cage body and a second net cage body, wherein the breeding floating platform is floated on the sea surface, the first net cage body is arranged under the breeding floating platform, and the second net cage body is fixed on the periphery of the breeding floating platform.The first net cage body is arranged in a second accommodating space of the breeding floating platform through a sliding component in a lifting and sliding mode, and ascending and descending of the netcage bodies are adjusted through a balancing weight on the breeding floating platform. The embedded type net-cage culture system is simple in structure and easy to use, according to the need, rapid and stable lift control of the first net cage body is achieved so as to meet the requirements of deep-sea fish breeding, the descending depth can be adjusted, and the second net cage body is arranged at the water surface elevation which is flushed with the breeding floating platform so as to meet the requirements of shallow-sea fish breeding. Applied electric energy is obtained through conversion of clean solar energy, an external power line is not needed, the system does not consume excessive electric energy of other sources, and the environment is protected.
Owner:黄娜

Refrigerator with bottom capable of heat dissipation

The invention provides a refrigerator. The refrigerator comprises a refrigerator body, wherein a compressor bin is arranged on the rear side of the bottom of the refrigerator body, the compressor bincommunicates with external space below the refrigerator body through an air inlet and an air outlet which are transversely arranged at the bottom of the refrigerator body side by side, and a condenserand a compressor are transversely arranged in the compressor bin side by side; a convection fan is arranged in the compressor bin and is positioned between the condenser and the compressor, and is used for promoting air to be blown from the condenser to the compressor; and an air shielding strip extending forwards and backwards is arranged under the refrigerator body and is positioned between theair inlet and the air outlet so as to transversely space the refrigerator body and a supporting surface when the refrigerator is placed on the supporting surface for allowing external air to enter the compressor bin from one side of the air shielding strip through the air inlet, the external air is used for firstly cooling the condenser, then is blown to the compressor through the effect of the convection fan, and finally flows out of the air outlet to the other side of the air shielding strip. When the refrigerator is embedded in a cabinet, the condenser and the compressor can be effectivelycooled, and the air shielding strip is convenient to disassemble and assemble, and therefore is convenient to maintain or replace.
Owner:HAIER SMART HOME CO LTD
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