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75results about How to "Good partition effect" patented technology

Display device and display substrate thereof

The invention provides a display device and a display substrate thereof. The display substrate comprises a display area, a porose area, and a partition area between the display area and the porose area. The partition area is provided with at least one partition ring surrounding the porose area, and is used for partitioning an organic light-emitting material layer. The partition ring comprises at least a support portion and a partition portion. The partition portion is provided with a tensile stress layer used for applying tensile stress to the partition portion. When the organic light-emittingmaterial layer is vapor-deposited, partial section of the partition portion in the partition ring is suspended. The partitioning effect on the organic light-emitting material layer is good, and external water and oxygen can be prevented from entering the display area from the opening. In addition, the partition portion can automatically block the organic light-emitting material layer. The use oflaser burning to remove the organic light-emitting material layer around the porose area is avoided. A hot process is omitted. The spacing between the porose area and the display area is shortened. The border of the porose area is reduced. Third, the tensile stress layer can apply tensile stress to the partition portion to prevent the suspended partition portion from collapsing and falling off. The partitioning performance of the partition portion is reliable.
Owner:YUNGU GUAN TECH CO LTD

Display substrate, manufacturing method thereof, display panel and display device

The invention discloses a display substrate, a manufacturing method thereof, a display panel and a display device. Through arrangement of a first isolation part and a second isolation part, a first isolated part is disconnected with at least one of a second isolated part and a third isolated part, so that when the isolated layer is a cathode multiplexed as a self-capacitance electrode, the cathodeisolation effect can be enhanced; when the isolated layer is the inorganic thin film packaging layer contained in the frame area, cracks generated by cutting or other reasons can be prevented from expanding to the display area; and therefore, the display quality and the touch effect are improved.
Owner:BOE TECH GRP CO LTD +1

Silicon on insulator structure and semiconductor device structure

The invention provides a silicon on insulator structure and a semiconductor device structure. The silicon on insulator structure comprises a first silicon layer, a first buried oxide layer formed on the first silicon layer, a second silicon layer formed on the first buried oxide layer, a second buried oxide layer formed on the second silicon layer, and a third silicon layer formed on the second buried oxide layer. By adopting the silicon on insulator structure, a double gate transistor structure can be utilized, and the stray capacitance between the semiconductor device which is arranged on the silicon on insulator structure and a substrate is effectively reduced.
Owner:SHANGHAI HUAHONG GRACE SEMICON MFG CORP

Air curtain system and isolating protective device

The invention provides an air curtain system. The air curtain system comprises an air suction module, a draught fan module, a disinfection and filter module, an air outlet module and an air storage box. An inlet of the draught fan module communicates with the air suction module. An outlet of the draught fan module communicates with the air outlet module. The air storage box is arranged between thedraught fan module and the air outlet module. The disinfection and filter module is arranged between the air storage box and the draught fan module or between the air suction module and the draught fan module. Every two adjacent modules communicate through an airflow channel. On the basis of the structure, it can be ensured that the air outlet module continuously and evenly blows an air curtain with enough pressure out through arrangement of the air storage box, it is ensured that a respiratory airflow propagation path between people is completely cut off so as to completely eliminate the risks of spreading of germs and cross infection; and in addition, the invention further provides an isolating protective device, because the isolating protective device adopts the air curtain system, theair curtain with the enough pressure can be continuously and evenly blown out as well, and the cut-off effect is excellent.
Owner:GUANGZHOU ANGEL BIOSAFETY TECH CO LTD +1

Arc-extinction electric contact part based on micro-electronic mechanical technology

The invention discloses a blow-out electric contactor element on the basis of the microelectronic mechanical technology, belonging to the microelectronic mechanical technical field. The invention comprises an upper part and a lower part, wherein, the upper part structure and the lower part structure are combined into a whole through a through hole connecting terminal manufactured integrally to form an electric contactor element body. The upper structure comprises a support body and an upper electrode and contacts of the upper electrode; the lower part structure comprises an underlay structure on which a lower electrode corresponding to the upper electrode and auxiliary contacts are arranged; the lower electrode serves as a main contact; all auxiliary contacts and the main contact are connected in parallel; the auxiliary contacts are realized by a socle beam structure; each auxiliary contact is connected in series with a current-limiting resistance; resistance value and number of parallel connected resistance are selected to prevent arc starting of the auxiliary contacts. The auxiliary contacts bear the energy of disjunction or closing, so that the main contact can work under the smallest striking voltage and avoid arc starting of the main contact, thereby realizing nonarcing make-and-break of a circuit.
Owner:SHANGHAI JIAO TONG UNIV

High-isolation full-degradable non-toxic spray aluminized nano-film and its use

A high-isolation full-degradable non-toxic aluminized plastic film as the packing material of food and medicine is prepared from plastic starch, degradable polycaprolactone, low-molecular polyhexane wax and degradable mother particles of pigment through proportional mixing, extruding out, making mother particles, extruding out, stretching to obtain film, coating with a layer of silica oil with 5-10 microns of thickness, and spraying aluminium layer with nano-class thickness.
Owner:烟台光大科技产业发展有限公司

Switch device

In this switching device, a field relaxation electrode is provided on the movable contact of a disconnector so that the movable contact can be connected to a fixed contact by changing the position of the field relaxation electrode between an open state and a closed state. By providing the field relaxation electrode on the movable contact of the disconnector, the ground dielectric strength and interpolar dielectric strength in the open state position can be improved to reduce the size and cost of the equipment. By improving the charging current interrupting performance and exciting current interrupting performance, the applicable range on system of the equipment can be extended.
Owner:HITACHI LTD

Display device, display substrate thereof, and manufacturing method of display substrate

The invention provides a display device, a display substrate thereof, and a manufacturing method of the display substrate. The method comprises the steps: in a transparent display area, manufacturing an opening through a first pixel defining layer between adjacent first sub-pixels, wherein the opening comprises a first opening body and a second opening body from top to bottom, the transverse size of the first opening body is set to be less than that of the second opening body, and therefore, the second electrodes of the adjacent first sub-pixels are separated. The opening with the narrow upper part and the wide lower part has a good separation effect on a conductive material, and the second electrodes of the adjacent first sub-pixels are not electrically conducted; in addition, an isolation column used for isolating the second electrodes in the prior art is omitted, thereby simplifying the film structure of the transparent display area, and reducing the diffraction problem during imaging through the transparent display area.
Owner:KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD

Floor board support member and floor board structure

The present invention provides a floor support member and floor construction. A mass body (40) shows a cylinder shape having a dent (42) in a central part of the lower surface (40A) under a setup status. The dent (42) is a cylinder shape with a coaxial line with the central axis of the mass body (40). Under the setup status, a buffering base frame (26) is arranged in the dent (42), and the lower surface (40A) of the mass body (40) is configured at a position of a side part of the dent (42) for coating a buffer rubber (18).
Owner:BRIDGESTONE CORP

Display panel, manufacturing method thereof and display device

The embodiment of the invention disclose a display panel, a manufacturing method thereof, and a display device. The display panel includes at least a first display area. The first display area includes a first substrate, a first electrode on one side of the first substrate, and a first pixel-defining layer which is located on one side, which is away from the first substrate, of the first electrode. The first pixel-defining layer includes a first pixel opening which includes a first light-emitting layer, a second electrode which is located on one side, which is away from the first substrate, ofthe first light-emitting layer. The first display area further includes a first isolation column and a second isolation column. The first isolation column is used to block adjacent second electrodes.The height of the second isolation column is greater than the height of the first isolation column, so that a mask plate does not contact the first isolation column which blocks the second electrodes. The first isolation column is prevented from collapsing and deforming, ensuring the good isolation effect of the first isolation column on the second electrodes, and ensuring the good display effectof the display panel.
Owner:KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD

Lake water isolating apparatus and isolating method

The invention, which belongs to the field of the water pollution control technology applied to the water pollution prevention process, discloses a lake water isolating apparatus and isolating method. With the method and apparatus, advantages of low cost, convenient installation, and convenient dismounting can be realized. The isolating apparatus comprises fixed steel tubes fixedly installed at the shores of the land; and waterproof cloths for isolating lake water are arranged between the fixed tubes at the land shores at the two sides. The tops of the waterproof cloths are tightened between the two fixed steel tubes by top steel slings; the bottoms of the waterproof cloths are tensioned by bottom steel slings or bottom corner steel slings and the bottoms of the waterproof cloths are recessed into a sludge layer; and the left sides and the right sides of the waterproof cloths are tensioned by side steel slings. The top steel slings, the bottom steel slings, the bottom corner steel slings, and the side steel slings are fastened to strainers installed at the steel tubes at the two sides and are tensioned by the strainers. The provided method and apparatus can be applied to the water pollution control process.
Owner:成都八八五生物科技发展有限公司

Box type prestress concrete light composite slab

The invention discloses a box type prestress concrete light composite slab and belongs to the field of building components. The box type prestress concrete light composite slab is composed of an upper cast-in-place concrete slab and a lower reinforced concrete prefabricated slab. A reinforced concrete bottom layer of the lower reinforced concrete prefabricated slab is composed of a rebar framework and pouring concrete. The rebar framework is composed of prestress rebar and common rebar. Common transverse rebar is distributed on the lower layer. Longitudinal rebar is arranged on the two sides. Prestress steel is longitudinally arranged on the transverse common rebar. A soft filling core layer is composed of light filling core blocks which are transversally spaced and transverse concrete ribs and is arranged on the surface of the reinforced concrete bottom layer. A closed lower reinforced concrete prefabricated slab is formed by pouring concrete on the periphery and the top face of the light filling core. The box type prestress concrete light composite slab is formed after the upper cast-on-site concrete slab is poured on the surface of the lower reinforced concrete prefabricated slab. The box type prestress concrete light composite slab is reduced in self-weight, improves structural integrity and the overall earthquake resistance, and can meet the requirements of large-span buildings.
Owner:HUBEI HONGYI BUILDING DECORATION ENG

Polyurethane sound insulation board for automobile parts

The invention provides a polyurethane sound insulation board for automobile parts. The sound insulation board comprises a cellular board, wherein cellular cavities of the cellular board are filled with a sound absorption material; the upper and lower side faces of the cellular board are both covered with glass fiber felt; the cellular board covered with the glass fiber felt is foamed in a polyurethane spraying mold to form a sealed baseplate; the outer surface of the baseplate can be coated with an outer layer according to different demands of customers. According to the polyurethane sound insulation board for an automobile trunk, the sound absorption material is embedded into the cellular space of the cellular aluminum board, the space is fully utilized, and the acoustic effect is greatlyimproved. Pre-embedding of the sound absorption material solves the problem of poor acoustic performance of cover plates under the condition of not changing the structural strength and bearing performance of a product, is particularly suitable for solving the problem of low-frequency noise of a motor of an electric vehicle, and can be well improved in new products.
Owner:GREEN & LIGHT AUTOMOTIVE COMPONENTS SUZHOU CO LTD

Vacuum isolating valve

The invention discloses a vacuum isolating valve, which comprises a driving rod, a sealing plate, a driving mechanism, and a moving direction limit mechanism, wherein the front end of the driving rod is arranged in an inner cavity of a valve body in a sliding way; the sealing plate is provided with a sealing face with a sealing medium, arranged in the inner cavity of the valve body, and can be combined or separated from the inner wall on the periphery of a port formed at an inner end of a vacuum channel in the inner cavity of the valve body to enclose or open the vacuum channel; the driving mechanism is arranged between the driving rod and the sealing plate, and is used for driving the sealing plate to be close to or far from the port; and the moving direction limit mechanism is arranged between the valve body and the sealing plate, and is used for guiding a moving part of the sealing plate close to the inner wall on the periphery of the port to move along the direction vertical to the inner wall on the periphery of the port so as to limit the relative sliding between the sealing face and the inner wall on the periphery of the port. The vacuum isolating valve adopts the moving direction limit mechanism to effectively avoid friction displacement between sealing elements in the isolating or opening, reduce abrasion, and stop scratches; and the driving rod has high rigidity, is not bent, and is durable to effectively reduce maintenance cost and ensure the performance and safety of an electric mirror.
Owner:KYKY TECH

Abdominal lymph node partitioning method based on attention mechanism neural network

ActiveCN112494063AAccurate partitionPartitioning method is comprehensive and reliableImage enhancementImage analysisPattern recognitionAbdominal lymph nodes
The invention relates to the technical field of abdominal lymph node partitioning, in particular to an abdominal lymph node partitioning method based on an attention mechanism neural network. The abdominal lymph node partitioning method based on the attention mechanism neural network is used for solving the problems that in the prior art, a doctor has a large difference in film reading results ofthe same abdominal CT medical image, and prediction of abdominal lymph node partitioning is inaccurate. The method comprises the following steps: step 1, preparing data; step 2, generating a mask, andpreprocessing the data; step 3, constructing an attention mechanism residual network model; step 4, repeating the step 3, and constructing and training a model of lymph node relative position partitioning; and step 5, classifying the abdominal lymph nodes automatically detected by the detection task by using the model trained in the step 3 and the step 4. According to the method, the original CTimage and the mask are overlapped to serve as input, and the attention mechanism is introduced into the deep residual neural network, so that the abdominal lymph nodes in the CT image can be accurately partitioned.
Owner:SICHUAN UNIV

Improvement of longitudinal isolation strip of metalized safety membrane electrode

The invention relates to a metalized safety membrane electrode structure for a capacitor. A zinc / aluminum metal electrode coating coats a polypropylene dielectric base membrane to form a composite membrane, wherein the electrode coating on the surface of the base membrane is partitioned into a plurality of small electrode units by a plurality of longitudinal gap strips, transverse gap strips or diagonal gap strips between a blank margin of the composite membrane and a thickened side of the coating; and each small electrode unit is provided with coating narrow strips for playing a fuse role to be connected with the outside. The orientation of a column of longitudinal gap strips adjacent to the thickened side is not completely consistent with the longitudinal direction of the composite membrane, and deflects towards the left or the right for 3-5 degrees on the basis of the center points of the gap strips; and the deflection directions of adjacent small gap segments are opposite, so that the definition of the longitudinal gap strips is improved; and the partition effect reaches the ideal state.
Owner:吴海兵

Foldable capacitor core and processing process thereof

The invention relates to a foldable capacitor core. The foldable capacitor core comprises a double-sided metallized thin film; the double-sided metallized thin film comprises an insulating thin film;the two side surfaces of the insulating thin film are provided with a first metallized surface and a second metallized surface respectively; the double-sided metallized thin film is transversely and repeatedly folded to form a double-sided metallized thin film folding piece; a first terminal and a second terminal are arranged at the left end and the right end of the double-sided metalized thin film folding piece respectively; the first terminal is in conductive contact with the first metallized surface; and the second terminal is in conductive contact with the second metallized surface. According to the foldable capacitor core, the double-sided metallized thin film is transversely and repeatedly folded to form the capacitor core; and compared with a traditional thin film capacitor core formed by winding, one layer of isolating paper is omitted, so that the size can be reduced by more than 20%.
Owner:GUANGDONG MENLO ELECTRIC POWER

Sealing component and container for power storage device

The invention provides a sealing component and a container for a power storage device. The container for the power storage device is welded with the sealing component. The sealing component is simple in structure and high in production efficiency, and has high gas barrier properties which cannot make gases, such as steam and oxygen gas, transmit easily. The container for a power storage device has light weight and high floor area ratio, and has small moisture immersed from connection parts of the sealing component and liquid components evaporated from a content article. The sealing component (1) is welded on an opening inner surface of a cylinder (51) having a welding property so as to seal the opening. A sealing wall (2) consists of a metallic foil laminated body having a metallic foil and a welding layer is welded on the top surface of a frame made of a resin. Electrode terminals (4,4) are fixed to the sealing wall (2) airtightly.
Owner:FUJIMORI KOGYO CO LTD

Food fresh-keeping transportation logistics turnover box

The invention discloses a food fresh-keeping transportation logistics turnover box. The food fresh-keeping transportation logistics turnover box comprises a turnover box body, wherein an L-shaped storage groove is formed in the turnover box body; a spring is arranged on the inner wall of the storage groove; a loading cloth is arranged on the outer wall of one end of the spring; a baffle is arranged on the outer wall of one side of the loading cloth; a fixing ring is welded on the outer wall of one side of the baffle; hooks are welded to the inner walls of the two sides of the turnover box body; and the hooks are hooked with the fixing ring. According to the food fresh-keeping transportation logistics turnover box, fruits and vegetables can be placed on the loading cloth and can be well isolated by the loading cloth so as not to be piled up; when the stackable fruits and vegetables are transported, the fixing ring on the baffle can be unhooked from the hooks, and then the loading clothcan be collected into the storage groove by the spring, so that more fruits and vegetables can be stored in the turnover box; and the turnover box has the functions of ventilation, drainage, heat dissipation, dryness and mildew inhibition, and therefore the fresh-keeping effect of the turnover box is effectively improved.
Owner:天门市怡田饮品科技有限公司

Soundproof fixing device

The invention discloses a soundproof fixing device. The soundproof fixing device is characterized by comprising a fixing device frame; a connecting piece is connected to one end of the fixing device frame, a vibration-reduction soundproof mat is connected to the other end of the fixing device frame, and a connecting block is embedded into the vibration-reduction soundproof mat; the fixing device frame is made of rigid materials, and the vibration-reduction soundproof mat is made of soft materials. According to the soundproof fixing device, the mode that the fixing device frame is matched with the vibration-reduction soundproof mat is adopted, the fixing device frame is a rigid frame, and the vibration-reduction soundproof mat is a soft mat. One end of the fixing device frame is connected with a wall and the like through the connecting piece, the other end of the fixing device frame is connected with decoration materials through the vibration-reduction soundproof mat, and soft connection between a fixing body and a fixed piece is achieved. In addition, the soundproof fixing device is low in inherent frequency and ideal in vibration isolation effect, the good isolation effect on transmission of sounds in solid media can be achieved, and the aims of reducing vibration, isolating the sounds and blocking acoustic bridges are achieved.
Owner:许岚

Safety helmet

The invention discloses a safety helmet including a helmet shell, a face mask, a fan, a wind speed sensor and a battery, wherein the face mask is arranged at the front of the helmet shell, the mask can be covered on that human face and forms a respiratory region with the human face, the fan is arranged in the helmet shell, the air inlet end of the fan is provided with a filter, the air outlet endof the fan is communicated with the breathing area, the fan can filter the outside air and send it to the breathing area, the wind speed sensor is arranged on the air outlet end and is connected withan alarm. When the wind speed at the air outlet end is lower than a preset value, the alarm is triggered. The helmet shell is provided with a first slot. The battery is inserted into the first slot and pulled out. The battery is disconnected from the fan, the wind speed sensing device and the alarm. The wind speed sensor can monitor the airflow speed of the air outlet in real time, and the batterycan be quickly disassembled and assembled through the plugging and unplugging mode so as to solve the problem of insufficient battery power. Therefore, the invention has the advantages of safety protection in place and convenient disassembling and assembling of the battery.
Owner:金华市多绿奇五金制品有限公司

Intelligent building control cabinet

The invention belongs to the technical field of control cabinets and relates to an intelligent building control cabinet. The intelligent building control cabinet comprises a cabinet body and a frame body; the frame body is provided with a cavity with an opening in one side; the cabinet body is arranged in the cavity; sliding blocks are symmetrically distributed at one end of the cabinet body; the sliding blocks are in sliding connection with sliding grooves formed in the frame body; the cabinet body is provided with an inner cavity with an opening in one side; the opening side of the inner cavity is matched with the inner wall of the cavity; a plurality of heat dissipation fans are evenly distributed on the side, facing the outside of a wall, of the cabinet body; and a plurality of heat dissipation pipes are obliquely distributed on the side, facing the inside of the wall, of the cabinet body. When the intelligent building control cabinet is used, the frame body is embedded into the wall, the cabinet body is arranged in the cavity; and therefore, the occupied space of the intelligent building control cabinet is saved; the heat dissipation fans can pump out hot air in the inner cavity to reduce the temperature in the inner cavity; and heat exchange fins of the heat dissipation pipes can absorb heat in the inner cavity, and the heat dissipation effect of the intelligent building control cabinet is improved.
Owner:林晓玲

Bridge water dripping groove structure

The invention relates to the field of bridge structures, and particularly relates to a bridge water dripping groove structure which comprises an edge beam flange plate and a water dripping groove. Thewater dripping groove is arranged in a position close to an end of a lower edge of the edge beam flange plate. The water dripping groove is in a U shape with a downward opening. And a sharp corner type protective edge protruding downwards is formed between the water dripping groove and an end part of the lower edge of the edge beam flange plate. The water dripping groove structure solves problemsthat an existing water dripping groove structure cannot play a good role in separation, concrete corrosion and degradation of a bridge edge beam occur under long-term rainwater erosion, and durability of a bridge main beam and tidiness and attractiveness of an appearance of the edge beam are seriously affected. The water dripping groove structure has advantages of double partitions, a simple structure and convenience in construction.
Owner:HENAN PROVINCIAL COMM PLANNING & DESIGN INST CO LTD

Display substrate and preparation method thereof

The invention discloses a display substrate and a preparation method thereof, the display substrate is provided with a hole area, a partition area and a display area, the partition area at least partially surrounds the hole area, the partition area is arranged between the hole area and the display area, and the display substrate comprises an array substrate, a device layer arranged on one side of the array substrate in the display area and comprising an anode layer, partition parts arranged on one side of the array substrate of the partition area at intervals and comprising anode material layers having the materials the same as that of the anode layer, and sunken parts arranged between the partition parts and on the array substrate between the partition parts and the device layer. The anode layer of the device layer is used for achieving the normal display function of the display substrate, the anode material layer of each partition part is used for preventing water vapor entering the hole area from the outside from invading the display area, the anode layer and the anode material layer of the display substrate provided by the embodiment of the invention can be formed together by adopting the same process, and the process is simple. And the production cost is effectively reduced.
Owner:HEFEI VISIONOX TECH CO LTD

Blood return prevention device for venous indwelling needle for pediatric nursing

The invention belongs to the technical field of venous indwelling needles, and particularly relates to a pediatric nursing venous indwelling needle blood return prevention device which comprises a body, a body transmission pipe is connected to a first arc-shaped block in a sleeving mode, the other end of the body transmission pipe is connected to a second arc-shaped block in a sleeving mode, and adjusting connecting ropes are arranged at the two ends of the first arc-shaped block and the two ends of the second arc-shaped block. The other end of the connecting rope is connected into a square block in a sleeved mode, a T-shaped rod used for transmission is arranged in the square block, a first transmission handle used for transmission is arranged at the side end of the first arc-shaped block, and a U-shaped groove used for positioning connection of a main body conveying pipe is formed in the upper end of the first arc-shaped block. The first arc-shaped block and the second arc-shaped block fixedly sleeve the wrist of a patient through a connecting rope, and the telescopic length of the connecting rope is adjusted through rotation of a T-shaped rod, so that effective adjustment and fixation can be conveniently carried out according to different patients, the stability of the main body is improved, and the main body is effectively prevented from being dislocated.
Owner:HENAN CANCER HOSPITAL

Lamplight shoes

The invention discloses lamplight shoes. Each lamplight shoe comprises a sole body and an upper connected to the sole body, wherein the sole body comprises a midsole, a light-emitting module, a shelland a bottom sole, the surface, in contact with the ground, of the sole body is the bottom sole, the other opposite surface of the sole body is the midsole, the light-emitting module is arranged in the midsole, the upper surface of the shell is connected with the midsole in an attached manner, the lower surface of the shell is connected with the bottom sole in an attached manner, the midsole is provided with a first groove used for being attached to the shell, a storage groove used for storing the light-emitting module and the first groove used for being attached to the shell from top to bottom, the storage groove comprises a second groove used for embedding the light-emitting module and a third groove used for embedding a light bar of the light-emitting module, and the light-emitting module comprises a control box and the light bar electrically connected with the control box. By adopting an installation module, the better partition property is achieved, the influence of a shoe cavityon a charged module can be eliminated, the distance between a lamp bead and the shell can be increased and is kept controllable, and the lamplight effect is better and more controllable.
Owner:SINCETECH FUJIAN TECH CO LTD +1

Friction sheet structure for improving brake noise

InactiveCN103453056ADoes not affect braking performanceSimple structureFriction liningEngineeringNoise reduction
The invention relates to a friction sheet structure for improving brake noise, and belongs to the technical field of auto parts. The friction sheet structure comprises a friction sheet body of which the side face is fixedly provided with a silencing sheet in a fitting way, another side face, opposite to the silencing sheet, on the friction sheet body is provided with a chute, and two ends of the friction sheet body are provided with chamfers which are mutually symmetrical. According to the friction sheet structure, the structure is simple; by changing the inherent frequency of the friction sheet, the noise can be better insulated, low frequency noise is reduced, the braking performance can not be influenced, and the noise reduction effect is obvious.
Owner:DONGFENG MOTOR CORP HUBEI

A method for compounding two kinds of copper alloys on the blank of plunger pump cylinder

The invention discloses a method for compounding two types of copper alloy on a plunger pump cylinder blank. The method includes the following steps: 1 cleaning the surface to be cast and conducting activation and forming a diversion groove (4) in the bottom of a blank (1); 2 preheating; 3 melting a first type of copper alloy and pouring the first type of copper alloy into a cylinder hole (2) of the blank (1); 4 standing in a thermal insulation mode, placing a partition plate (6) and adjusting a temperature control device to enable the temperature at the lower end of the blank (1) in a furnace to be 5-15 DEG C lower than that of the upper end; 5 placing a second type of copper alloy in the spherical recessed face (3) of the blank (1), melting the second type of copper alloy and standing in a thermal insulation mode after the copper alloy is completely molten; 6 cooling and discharging. By means of the method, different copper alloys can be compounded on two different working faces of a plunger pump cylinder, the performance of the plunger pump is improved, and the service life is prolonged.
Owner:贵州鼎成熔鑫科技有限公司
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