32results about How to "Improve quality and performance" patented technology

The invention provides a switching method of a built-in antenna and an exposed antenna of an FM receiver as well as a corresponding terminal thereof. The terminal comprises an FM receiver, the built-in antenna, the exposed antenna, a CPU, a detection module and an antenna switching module. The CPU detects that the exposed antenna is switched in when the terminal switches in the exposed antenna inthe on-state of the FM receiver; the detection module is used for detecting the RSSI of signals received by the built-in antenna and the exposed antenna; the selection module is used for comparing the RSSI values of the signals received by the built-in antenna and the exposed antenna, which are detected by the detection module. The antenna with the larger RSSI value is selected, and then the CPU controls the antenna switching module to switch in the selected antenna as the current receiving antenna. The switching method performs a switching between the built-in antenna and the exposed antennaaccording to the quality of the signals received by the built-in antenna and the exposed antenna from a station, can realize a seamless switching between the built-in antenna and the exposed antenna,and raises the receiving quality and the effect of the FM receiver.

The invention discloses a mobile Internet-based home-school interaction teaching system. The mobile Internet-based home-school interaction teaching system comprises a dedicated handheld terminal for students, a dedicated handheld terminal for parents, a dedicated handheld terminal for teachers, a dedicated storage server for teaching information, a central processor and a communication module; the dedicated storage server for teaching information is connected with the central processor; the central processor is connected with the communication module; and the dedicated handheld terminal for students, the dedicated handheld terminal for parents and the dedicated handheld terminal for teachers are in communication connection with the central processor through the communication module and are in communication connection with one another. With the mobile Internet-based home-school interaction teaching system of the invention adopted, the parents of the students can be allowed to deeply participate in classroom learning of their children, and the children are more active in the classroom teaching and questioning of the teachers, and the teachers can be convenient to quickly grasp the mastery degree of learned content of each child in classes.

The invention relates to a soldering method of a conducting ring of a motor rotor. In the method, an end ring is heated through improving the structure of a conducting bar of a rotor and adopting a medium frequency induction way, and a super thick conducting ring of a high capacity motor rotor is soldered by the way that two brazing torches respectively assist heating the end head of the conducting bar and the excircle surface of the end ring. The soldering method of the conducting ring of the motor rotor has the advantages of good soldering quality and motor performance and quality improvement when being used for soldering the conducting ring of the high capacity motor rotor.

The invention relates to a quenching process of a H13 steel aluminum alloy die-casting die. The quenching process is characterized by comprising the following steps of (1) second-time preheating, (2) quenching, (3) vacuum tempering and (4) stress relief annealing.

A machine is provided for blow-molding articles from a strip of material. The machine has a mount with two frames mounted thereon. Each frame is connected to a movement actuator so as to be movable along a path of the strip between respective positions that are upstream and downstream relative to a travel direction of the strip through the machine. A pipe, a holder member, and a mold are mounted respectively on an item selected from the mount and the frames. A control unit is connected to the movement actuators to control them in such a manner as to generate a sequence of moving the guide pipe and the mold relative to the holder member and of opening and closing the mold in such a manner as to cause the strip to advance along the rectilinear path.

The invention discloses a preparation method for a conductive, anti-corrosive, wear-resistant and high-hardness carbon-based film. The preparation method comprises the following steps: heating by virtue of a heating pipe in a vacuum chamber; ionizing argon gas by virtue of an ion source; cleaning and activating a base material clamped on a rotating stand in the vacuum chamber; carrying out magnetic target deposition on titanium metal after a vacuum pressure is achieved; then carrying out acetylene ionization by virtue of the ion source; and finally cooling in an inert gas. The conductivity, anti-corrosive property, wear resistance, high hardness and other performance of the film prepared by the preparation method disclosed by the invention meet the application needs of many industries such as semiconductors, mobile phones, chemical electrolysis and electric spark machining.

The invention relates to the technical field of ceramic friction materials, particularly a ceramic friction material mixture and a mixing method thereof. Silicon dioxide, molybdenum disulfide, diesel, manganese carbonate ore, phosphorite, graphite, diatomite, ceramic fibers, carbon fibers, a phenolic resin and sodium dodecyl benzene sulfonate used as raw materials are selected and proportioned to prepare the ceramic friction material. The kinetic friction coefficient of the ceramic friction plate prepared from the ceramic friction material is 0.22-0.23, the static friction coefficient is 0.24-0.25, the kinetic/static friction ratio is 0.88-0.955, and the wear rate is 7.5*10<-6>mm<3>.J<-1>-9*10<-6>mm<3>.J<-1>. By combining the raw material proportioning and adding the manganese carbonate ore and phosphorite, the properties of the ceramic friction material mixture are improved, so that the frictional properties (especially stability, oil conductivity and physical and mechanical properties) of the ceramic friction material are improved.

The invention relates to the technical field of rice iron removal. The invention discloses an efficient iron removal device for rice processing. The device comprises a work box, the top of the work box communicates with a feeding hopper. Two stop blocks are symmetrically and fixedly connected to the inner top wall of the work box; and the front and rear side faces of the stop blocks are fixedly connected with the front inner wall and the rear inner wall of the work box correspondingly, a plurality of electromagnet blocks are fixedly connected to the side faces, close to each other, of the twostop blocks, two electromagnetic rods are symmetrically and fixedly connected between the front inner wall and the rear inner wall of the work box, and two first motors are symmetrically and fixedly connected to the back face of the work box through supporting plates. The problems that according to an existing rice iron removing device, generally, a magnet is placed at a rice conveying channel toremove iron from rice, so that iron residues in the rice are difficult to remove thoroughly, and the quality and the effect of rice iron removing processing are seriously reduced are solved.

The invention relates to an annular pressure monitoring sealing device for geological drilling, which is applicable to drilling hole maintenance operation such as pressure monitoring, pressure control and pressure leak stopping in geological drilling construction. The device consists of a central pipe, a sealing shell, a pressure gauge, a safety valve, a pressure relief pipe, a spin valve, an orifice pipe, keys and a seal ring, wherein the sealing shell is arranged on the central pipe; four L-shaped notches are formed in the sealing shell; the pressure gauge and the safety valve are arranged on the sealing shell in a connected way; the pressure relief pipe is arranged on the sealing shell; the upper end of the pressure relief pipe is provided with the spin valve; the seal ring is arranged on the orifice pipe; the orifice pipe is arranged in the sealing shell; and four keys are welded on the outer wall of the orifice pipe for locking the relative position of the sealing shell and the orifice pipe. According to the device, the annular pressure change of a shaft can be monitored in real time, and meanwhile, operations such as sealing pressure maintaining and pressure relief can be performed; the device has effects of monitoring and controlling the pressure, keeping a hole wall stable and the like; the leak stopping effect and quality can be greatly improved and water burst is controlled to facilitate kill operation; and thus, the level of the drilling technology is improved and the drilling cost is effectively reduced.

A process and apparatus for making silicon or silicon/germanium core fiber is described, which uses a plasma process with reducing agent to make preform. The process also makes the recommendations in selecting the adequate cladding tube for better fiber properties. An improved fiber drawing apparatus is also disclosed in order to draw this new type of preforms.

The invention relates to a method for weaving a 2.5D angle-interlock preformed part with the section gradually decreasing. On the basis of a layer-layer angle-interlock weaving process, the method ischaracterized in that in the weaving process, with one end surface of the preformed part as a standard, according to the change of the size of the section of the preformed part and the movement law ofyarn, the quantity and positions of yarn-reducing points in a plane in the weaving direction are designed, and the yarn-reducing points are evenly distributed; by means of the methods of yarn reduction, yarn movement and yarn reed replacement, the section change of the preformed part is achieved, and the section-variable preformed part is woven. The method is simple and high in applicability, thewoven formed part is good in integrity, and the mechanical properties of composites can be improved.

The invention provides a preparation method of a dry-method electrode pole piece, an electrode pole piece and a battery cell. The preparation method of the dry-method electrode pole piece comprises the following steps of preparing a fibrillated mixed material from raw material powder, stirring and sieving the mixed material to obtain pole piece powder, and processing the pole piece powder to obtain the electrode pole piece. According to the preparation method of the dry-method electrode pole piece, the material fibration degree before feeding can be regulated and controlled by stirring and sieving the mixed material, so that the thickness of a rolled film is regulated and controlled, and the problems of poor uniformity and poor neatness of the film are solved, so that the electrode pole piece prepared by the method is used for preparing a battery cell, and the quality and the performance of the battery cell are favorably improved.

The invention provides a vacuum cleaner which mainly comprises a body member, a suction portion and a deflecting roller portion, the body member is provided with a dust collection filter for collecting the foreign bodies sucked in through the ventilating fan, the suction portion is formed at the lower portion of the body member for sucking foreign bodies, the deflecting roller portion is formed at the lower portion of the suction portion, whose direction is changed with the rotation of the deflecting roller. The vertical vacuum cleaner can be moved not only from front to rear, but also from left to right.

The invention discloses an intelligent hypoxia health care system based on physical training. The system comprises an intelligent hypoxia generation device, a multimedia interaction control device, a cloud analysis platform, an open mask and a physiological index detection device. The intelligent hypoxia generation device comprises an air filter, an air compressor, a compressed air storage tank, fine filtration equipment, an electric control valve, a heater, a membrane separation unit, a pressure-stabilized air storage tank, a control valve and a flow meter which are sequentially connected through a pipeline; the physiological index detection device is used for detecting various physiological indexes of the body of the trained person under the hypoxia condition; and the cloud analysis platform is used for collecting working data and physiological indexes of the intelligent hypoxia generation device and generating a training scheme. A hypoxia product is generated through the intelligent hypoxia generation device and provided for the user to breathe through the open mask, the cloud analysis platform collects the physiological index data of the user to generate the training scheme, and the cardio-pulmonary function of the human body and the adaptive capacity and endurance capacity in the hypoxia environment are improved.

The invention relates to the technical field of dyeing additives and especially provides a flatting agent for dyeing chinlon. The flatting agent is composed of lauryl sodium sulfate, tetrachloroethylene, glacial acetic acid, wax emulsion, methylbenzene, butanone, silicon dioxide, organic bismuth and water according to the following ratio, by mass, 2-4 parts of the lauryl sodium sulfate, 15-18 parts of the tetrachloroethylene, 15-20 parts of the glacial acetic acid, 5-13 parts of the wax emulsion, 1-3 parts of the methylbenzene, 6-10 parts of the butanone, 3-9 parts of the silicon dioxide, 2-5 parts of the organic bismuth, and 40-50 parts of water. The flatting agent can eliminate an aurora-like phenomenon on a chinlon fabric, thereby improving performance and quality of the chinlon fabric. The flatting agent is low in usage cost.

The invention discloses sunscreen cream and a preparation method thereof. The sunscreen cream is prepared from the following raw materials in parts by weight: a polydimethylsiloxane PEG-10/15 cross-linked polymer, 3-4 parts of polydimethylsiloxane, 2.5-3.5 parts of polydimethylsiloxane/vinyl polydimethylsiloxane cross-linked polymer/decamethylcyclopentasiloxane, 1-2 parts of cetyl PEG/PPG-10/1 polydimethylsiloxane, 8-10 parts of decamethylcyclopentasiloxane, 4-6 parts of diphenylsiloxy phenyl trimethicone, 2-4 parts of SunCat MTA, 2-4 parts of titanium dioxide, 0.5-1.5 parts of shark glycol, 0.3-0.7 part of phenoxyethanol and 68-73 parts of water. SunCat MTA is matched with titanium dioxide, so that a higher SPF value can be achieved with fewer sunscreen ingredients and lower concentrations, the addition amount of the traditional sunscreen agent is reduced, and the processing cost is reduced; shark glycol is used for inhibiting skin inflammation caused by ultraviolet light, the chemical sunscreen agent is wrapped in a double-layer phospholipid film for shark glycol, and the skin feeling of the sunscreen cream is greatly improved.

The invention relates to a mass spectrum imaging high-spatial-resolution surface sampling head based on a microfluidic technology and a sampling method. The mass spectrum imaging high-spatial-resolution surface sampling head based on the microfluidic technology comprises a sampling head body, the bottom of the sampling head body is provided with a sampling cavity, the sampling head body is internally provided with a first flow channel and a second flow channel, the first flow channel is used for injecting an extraction solvent, and the second flow channel is used for caching and spraying out a sample; each of the first flow channel and the second flow channel comprises a first interface and a second interface, the first interfaces of the first flow channel and the second flow channel are respectively communicated with the sampling cavity, and the second interfaces of the first flow channel and the second flow channel are respectively communicated with the outside of the sampling head body. The sampling cavity and the flow channels are designed, so that the sampling head has the characteristic of compact structure, meanwhile, the sampling spatial resolution and the sampling effect are improved, and the sampling head is provided with a planar design and a gas-liquid path interface, and can be conveniently combined with external movement equipment such as a robot and the like for use.

The invention discloses quick cooling equipment for massive products, which comprises a rack, wherein the rack is internally provided with a workbench; an operation device is arranged at the top end of the rack; a transfer mechanism and a waiting platform are arranged on the workbench; the waiting platform is arranged below the transfer mechanism; the waiting platform comprises a bearing plate, abearing translation air cylinder, struts, buffers, a drag chain component, electric cylinders, heat radiators, first carrying plates and a second carrying plate; the bearing translation air cylinder and the drag chain component are connected with the side face of the bearing plate in parallel through working ends; the buffers are connected with the two sides of the bearing plate; the struts are fixed on the upper surface of the bearing plate; the upper end of the electric cylinders are connected with the lower ends of the struts; the first carrying plates are arranged on the struts; the heat radiators are fixed on the first carrying plates; the first carrying plates are connected with the second carrying plate through a plurality of heat dissipation columns; and the side face of the secondcarrying plate is connected with waiting platform in parallel. The quick cooling equipment achieves massive cooling, improves production efficiency and has a good market application value.

Provided are a solid electrolyte composition containing an inorganic solid electrolyte having conductivity of ions of metals belonging to Group I or II of the periodic table, a binder, and a dispersion medium, in which the dispersion medium includes an alicyclic compound composed of a carbon atom, a hydrogen atom, and/or a halogen atom, and a boiling point of the alicyclic compound at 760 mmHg is 100° C. or higher and 180° C. or lower, a solid electrolyte-containing sheet, an all-solid state secondary battery, and methods for manufacturing a solid electrolyte-containing sheet and an all-solid state secondary battery.

The invention relates to the field of precision casting and material preparation, in particular to a high-temperature alloy slag inclusion filter screen and application. Firstly, corundum powder, silicon dioxide, carbon powder, silica sol and the like are selected as raw materials of the filter screen, and the corundum powder comprises corundum powder with the granularity of 20-80 meshes and corundum powder with the granularity of 200-1000 meshes. Then, corundum powder with two particle sizes is uniformly mixed; carbon powder is added and uniformly mixed; and silica sol is added and uniformlyblended. A filter screen with the high-temperature strength of 30-100 MPa is manufactured through the steps of cold static pressure forming, vacuum thermal sintering strengthening, polishing cleaningand the like, and the filter screen is placed in a pouring system. Finally, the alloy liquid is puored under a casting process at the pouring temperature of 1350-1550 DEG C for 3-60 seconds, cooling is carried out, components O, N and S are detected, and the effectiveness of the filter screen is verified. The method is suitable for the casting process of all metal materials, and is particularly suitable for the pouring process of high temperature.

The invention discloses an angle pressure device on an outer rotor winding machine, which is characterized by comprising a pair of angle pressure mechanisms oppositely arranged up and down, wherein each angle pressure mechanism consists of a forward linear motion pair, a lifting linear motion pair and an angle pressure structure arranged on the lifting linear motion pair; each forward linear motion pair comprises a forward stepping motor, a forward ball screw connected with the forward stepping motor, a forward screw connecting block in threaded connection with the forward ball screw and a forward guide rail which is arranged perpendicular to the rotating axis of a winding machine rotor indexing; each lifting linear motion pair comprises a lifting stepping motor, a lifting guide rail and a gear transmission mechanism connected between the lifting stepping motor and the corresponding angle pressure structure; and operating surfaces of the upper and the lower angle pressure mechanisms correspond to the position of a stator cable channel on the winding machine rotor indexing. According to the invention, due to the arrangement of the pair of angle pressure mechanisms which are symmetrical up and down, the winding displacement and the compression of a stator coil are implemented and the performance of the finished product coil is improved.

The invention provides a hydraulic cone crusher. The hydraulic cone crusher comprises a machine shell, an upper machine frame assembly, a lower machine frame assembly, a hydraulic driving assembly and a control system; the upper machine frame assembly is movably arranged on the machine shell; the lower machine frame assembly is located in the machine shell and movably connected to the upper machine frame assembly; the hydraulic driving assembly is connected to the upper machine frame assembly so as to drive the upper machine frame assembly to swing; and the control system is electrically connected to the hydraulic driving assembly, wherein a crushing cavity used for crushing materials is formed between the upper machine frame assembly and the lower machine frame assembly, and swing of the upper machine frame assembly acts on the materials and is transmitted to the lower machine frame assembly, so that the lower machine frame assembly is forced to swing. The problem of huge investment in the artificial sand crushing process is solved. According to the hydraulic cone crusher, the lower machine frame assembly is driven by the upper machine frame assembly to swing in a forced manner, and the upper machine frame assembly and the lower machine frame assembly form opposite movement in the crushing process, so that the absolute value of crushing force is increased, and the crushing quality and effect are advantageously improved.

The invention belongs to the technical field of plastic paints, and concretely relates to a water-based plastic paint. A storage tank comprises a tank body and a tank cover; first circular grooves which are uniformly distributed are formed in the inner wall of a barrel body at the bottom of the tank body; first round rods are rotationally connected into the two first circular grooves through balls; second circular grooves are formed in the inner walls of the two first circular rods; springs are fixedly connected into the two second circular grooves, and the other ends of the springs are fixedly connected with the end faces of one sides of the first circular grooves; rotating wheels are fixedly connected to the end faces of one sides of the two first round rods through section rods; long grooves are formed in the sides, opposite to each other, of the two first circular grooves; and pull ropes are wound on the outer surfaces of the two first round rods. The water-based plastic paint is mainly used for solving the problem of stirring and mixing using other members, needed in the use process of existing water-based plastic paints due to poor storage stability and easy agglomeration, caking and precipitation of the water-based plastic paints belonging to a heterogeneous system in the production process of the water-based plastic paints.

The invention discloses a green-killing device for green soy bean processing. The green-killing device includes a feeding inlet, a feeding device is installed at the bottom of the feeding inlet, a connecting ring is installed at the right side of the feeding device, a steam tube is installed at the bottom of the connecting ring, a green-killing roller is installed at the right side of the connecting ring, a bearing is arranged between the green-killing roller and the connecting ring, a gear ring is arranged on the outer surface of the right end of the green-killing roller, supporting bracketsare arranged at the bottom of the green-killing roller, a collecting device is arranged at the right side of the green-killing roller, a discharging outlet is arranged at the bottom of the collectingdevice, a barometer and a temperature measurer are arranged at the right side of the collecting device, the temperature measurer is arranged under the barometer, an air outlet is arranged at the rightupper end of the green-killing roller, and the green-killing roller is provided with a material-pushing screw bolt ring and a high temperature-resistant steel ring wall. The green-killing device is more uniform in green-killing, capable of making the green soy beans fully contact with steam, improved in green-killing efficiency and quality and convenient for personnel operation.

The invention discloses product surface ironing equipment for silk product processing and production, and relates to the technical field of production and processing.The product surface ironing equipment comprises a main body, a flat pressing device is arranged on one side of the main body, a driving device is arranged at the upper end of the main body, a connecting shaft is arranged on the other side of the main body, and a working box is arranged on one side of the connecting shaft; and a steam generating device is arranged at the upper end of the working box. Under the combined action of a flat pressing block, a screw hole, a pressurizing mechanism, a fixing plate and a balancing weight, the silk product ironing device can flatten the surface of a silk product when ironing the silk product, wrinkles on the surface of the silk product are flattened, subsequent ironing of the silk product is facilitated, and under the combined action of a steam bin, an air inlet hopper, an air dispersing hole, a hydraulic device, a heating device and an air guide pipe, the silk product can be ironed conveniently. The problem that the silk products are damaged or cannot be ironed due to the fact that the temperature generated by the ironing equipment is too low or too high can be avoided, and the silk products can be ironed by generating steam.

The invention discloses a multi-cavity PVD-RTA (Physical Vapor Deposition-Resin Transfer Analysis) mixed thin film deposition system, which comprises a transport cavity, an RTA (Resin Transfer Angle) and a control system, the uploading cavity is arranged beside the transportation cavity, a first vacuum valve is arranged between the uploading cavity and the transportation cavity, and a third vacuum valve is directly arranged between the uploading cavity and the outside; the process cavity comprises a thin film deposition cavity, an etching cavity and a vacuum rapid annealing cavity which are distributed beside the transport cavity, and a second vacuum valve is arranged between the process cavity and the transport cavity. PVD and RTA are combined, so that the thin film deposition, etching and heat treatment processes of the wafer are all in vacuum, and the wafer does not need to be in contact with the atmosphere, and therefore, the production efficiency is greatly improved, and the production cost is reduced. Not only is the process efficiency improved, but also the performance and quality of the film are improved.

The invention provides a gas distribution and diffusion plate. The gas distribution and diffusion plate comprises a temperature control device which is used for controlling the temperature of the gas distribution and diffusion plate to keep stable. The gas distribution and diffusion plate has the advantages that the probability that reaction gas entering a reaction chamber is adsorbed on the surface of the gas distribution and diffusion plate and a recombination rate of reaction gas atomic activity radicals and the surface of the gas distribution and diffusion plate can be kept stable through the stable surface temperature, and accordingly the gas distribution and diffusion plate is capable of keeping gas molecules and the atomic radicals in the reaction gas participating in wafer processing stable basically, the stability of a wafer processing technology is guaranteed and the wafer processing quality and performance are improved; the risk that depositions of side reaction products on the surface of the gas distribution and diffusion plate form solid particles and fall to the surfaces of processed wafers in technology processing can be reduced through the stable surface temperature, so that the product yield is increased. The invention further provides a plasma processor.

The invention discloses a pressing type bean pulp smashing device which comprises a smashing tank. A screen is arranged in the smashing tank; a stock bin is arranged at the area under the screen; a bearing seat is further arranged in the middle of the screen; a smashing motor is further arranged above the smashing tank; a main shaft is arranged on a motor rod of the smashing motor, stretches intothe tank from the upper part of the smashing tank, and is arranged on the bearing seat of the screen; and square rods horizontally stretching out from two sides are further arranged on the main shaft.According to the device, after smashing through a smashing and pressing roller every time, a driving lever closely follow to plough again, so that the device is ingenious in overall structure designand clear in principle; and one same smashing motor is utilized for installing a smashing mechanism and a ploughing mechanism, so that the device is reasonable in structure and convenient to use.

The invention discloses a sending-out mechanism of a fertilizer discharger of a plant protection fertilizer spraying machine; the sending-out mechanism is arranged in a fertilizer discharger shell body and includes a transmission shaft, a feeding roller and a feeding amount regulating mechanism; the transmission shaft is arranged horizontally and penetrates through side plates at two sides of the fertilizer discharger shell body; the feeding roller is sleevedly arranged on the transmission shaft in the fertilizer discharger shell body; the feeding roller is a ladder-like roller body having the central axis arranged horizontally and having an inner hole increased from left to right gradually, and the left end of the roller body is provided with an end plate; a plurality of axial grooves are uniformly distributed on the roller wall of the outermost layer of the feeding roller; each axial groove is a horizontal straight groove with the left end sealed and the right end opened to split the right end of the roller wall of the outermost layer of the feeding roller; the feeding amount regulating mechanism is arranged in the fertilizer discharger shell body and at the right side of the feeding roller and includes a sliding sleeve and a regulating shaft sleeve; through regulating the regulating shaft sleeve, the left end of each axial groove of the feeding roller can be allowed to form a fertilizer accommodating groove with adjustable capacity. A fertilizer can be evenly sent out, and the quality and the effect of fertilizer spraying operations are significantly improved.

The invention discloses a heat treatment method of a copper-chromium alloy used for a high-voltage switch and belongs to the technical field of a heat treatment technology of an alloy material. The heat treatment method comprises following steps: (1) performing a solution treatment to a copper-chromium alloy profile, maintaining the temperature at 1030-1040 DEG C for 50-70 min and rapidly cooling the alloy profile to room temperature for later use; (2) instantly performing aging treatment to the alloy profile after the solution treatment, maintaining the temperature at 460-480 DEG C min for 110-130 min and naturally cooling the alloy profile to room temperature. The heat treatment method of the copper-chromium alloy can effectively improve hardness of a copper-chromium alloy part. A hardness upper limit in a conventional technology is overcome and the hardness can finally reach higher than 130 HBW so that quality and performances of a product is greatly enhanced. The copper-chromium alloy is suitable for a copper-chromium alloy contact part used for the high-voltage switch, wherein the copper-chromium alloy contact part comprises a moving contact, a fixed contact, a sliding contact, a self-operated contact and the like, thereby achieving a significant economic benefit.