32results about How to "High microwave power" patented technology

The invention discloses a microwave ablation needle and a microwave ablation therapeutic apparatus thereof, and relates to a structure of the microwave ablation needle and the microwave ablation therapeutic apparatus using the microwave ablation needle. The microwave ablation needle mainly comprises an ablation needle, an ablation needle tube, a microwave coaxial cable, a capillary, a handle with a crank, a temperature sensor, a fixed frame, a high-frequency joint and a water cavity, wherein the fixed frame comprises the high-frequency joint, a water inlet joint, a water outlet joint and the temperature sensor and is connected with a terminal external socket; the high-frequency joint comprises a lock card reed; and the water cavity used for circulating cold water is arranged in the handle. The circulating water enters the capillary from the water inlet joint, then enters the water cavity from the ablation needle tube, and finally flows out from the water outlet joint. The microwave energy enters the microwave coaxial cable from the high-frequency joint, and radiates through the ablation needle. The microwave ablation needle, a microwave power source and a computer control unit form the microwave ablation therapeutic apparatus. The microwave ablation needle and the microwave ablation therapeutic apparatus are mainly used for treating tumor through microwave ablation.

The invention aims at providing a preparation method for rapidly obtaining graphene in large quantities. On the basis of obtaining graphite oxides, the molecular thermodynamic movement of groups such as hydroxyl groups (-OH), carboxylic groups (-COOH) and the like which are generated on the surfaces of graphite oxide layers through oxidization can be induced and stimulated through microwave treatment so as to produce a momentary unsteady state, so that Van der Waals binding force between graphite layers is damaged, and graphene can be rapidly obtained in large quantities. The graphite oxides are obtained through the oxidization of metal salt such as potassium permanganate, potassium dichromate and the like as well as strong protonic acid such as concentrated sulphuric acid, concentrated nitric acid and the like, and then microwave irradiation is carried out under the conditions that the power ranges from 2 to 10 kW, the vacuum pressure ranges from 0.01 to 0.06 MPa and so on, so that microwave cleavage of the graphite oxides can be accomplished within 2 to 10 seconds, and graphene with less than ten layers can be obtained rapidly in large quantities. The preparation method can also control the layer number or the thickness of graphene products by controlling the concentration and the oxidation time of oxidizing mediums as well as the power, the degree of vacuum and the like of the microwave irradiation.

The invention provides microwave cooking equipment, a microwave heating control method and a storage medium. The microwave cooking equipment comprises a shell, a solid-state microwave source, an antenna and a controller, wherein a heating cavity can be encircled in the shell, the solid-state microwave source is arranged on the shell and is used for emitting variable-power microwave, the antenna isconnected to the solid-state microwave source and is used for feeding the first variable-power microwave into the heating cavity, and the controller is connected to the solid-state microwave source and is used for controlling the solid-state microwave source to work and adjusting the first variable-power microwave. With the microwave cooking equipment provided by the technical scheme, on one hand, the heating effect on sealed food is better; and on the other hand, the power of the solid-state microwave source is much smaller than the power of a magnetron, correspondingly, the phenomenon of partial cooking due to partial overheat and excessively large heat absorption of food to be unfrozen caused by excessively large power during executing unfreezing operation is prevented, so that the unfreezing effect is also better.

The invention belongs to the field of a material coating, and particularly provides a new method for preparing a high-quality diamond coated cutting tool by multilayered step-by-step deposition. The new method concretely comprises the following steps: firstly, plating a molybdenum layer on the surface of a hard alloy cutting tool by adopting an electroplating method or a physical vapor deposition method, wherein molybdenum is bound together with cobalt on the surface of a matrix to form a stable compound so as to form a transition layer on the surface of the matrix, so that not only can the influence of cobalt on the surface of the cutting tool to the diamond coating be reduced, but also the dispersion of cobalt towards the surface of the cutting tool from the depth position of the matrix is prevented; and then depositing a diamond coating by two steps through utilizing microwave plasma CVD (MPCVD) method, namely controlling corresponding parameters in diamond nucleation and growth stages to form a nanodiamond thin film with high quality and high stability.

The invention discloses a microwave ablation needle and a microwave ablation therapeutic apparatus thereof, and relates to a structure of the microwave ablation needle and the microwave ablation therapeutic apparatus using the microwave ablation needle. The microwave ablation needle mainly comprises an ablation needle, an ablation needle tube, a microwave coaxial cable, a capillary, a handle witha crank, a temperature sensor, a fixed frame, a high-frequency joint and a water cavity, wherein the fixed frame comprises the high-frequency joint, a water inlet joint, a water outlet joint and the temperature sensor and is connected with a terminal external socket; the high-frequency joint comprises a lock card reed; and the water cavity used for circulating cold water is arranged in the handle. The circulating water enters the capillary from the water inlet joint, then enters the water cavity from the ablation needle tube, and finally flows out from the water outlet joint. The microwave energy enters the microwave coaxial cable from the high-frequency joint, and radiates through the ablation needle. The microwave ablation needle, a microwave power source and a computer control unit form the microwave ablation therapeutic apparatus. The microwave ablation needle and the microwave ablation therapeutic apparatus are mainly used for treating tumor through microwave ablation.

Radar sensor for motor vehicles (44), comprising a transmitting antenna (Tx) in the form of a planar array antenna having a plurality of juxtaposed antenna elements (10, 12, 14, 16), and further comprising a supply network (26) for providing the antenna elements with microwave power, characterized in that the supply network (26) is designed to provide the antenna elements (10, 12, 14, 16) with microwave power that has a phase shift which increases from one end of the row to the other by constant increments.

The invention provides a microwave oven comprising at least two semiconductor microwave generators and a waveguide box, wherein the semiconductor microwave generators are connected with a direct current power supply; the waveguide box is connected with a waveguide opening arranged on a chamber body of the microwave oven; the waveguide box is provided with a plurality of waveguide holes communicated with the waveguide opening, wherein the amount of the waveguide holes is the same as the amount of the semiconductor microwave generators; the semiconductor microwave generators are respectively connected with the waveguide holes; and the waveguide box is provided with a plurality of independent waveguide spaces corresponding to all the waveguide holes. The purpose that at least two semiconductor microwave generators connected with the direct current power supply share a common waveguide box is achieved; microwaves generated by each semiconductor microwave generator are respectively transmitted from the independent waveguide spaces of the waveguide box to the chamber body so that mutual interference of the microwaves is avoided; and the microwave oven has the following characteristics of simpler and more compact structure, high microwave power and wide adjustable heating range.

The present invention relates to a microwave chemical reaction device in the chemical research and the chemical field, in particular to a microwave chemical reaction device for research, pilot test and output magnification of microwave chemical reaction under relatively low temperature. The present invention provides a microwave chemical reaction device with integrated refrigeration and microwave radiation, which comprises a microwave radiating cavity, an embedded microwave reactor, a microwave power, a magnetic control pipe and a refrigerating device; the embedded microwave reactor is arranged in the microwave radiating cavity; the microwave radiating cavity is directly connected with the refrigerating device for continuous refrigeration of the microwave radiating cavity; the microwave power and the magnetic control pipe are connected with the microwave radiating cavity. The present invention can provide high-strength and high-intensity microwave radiation and ensures that the reaction system is under the low temperature or superlow temperature condition while greatly increasing the chemical reaction speed, thus providing full reaction activated energy, increasing the reaction speed and overcoming the damages of high temperature on reactants or target molecule structure, activity and shape.

The invention relates to a microwave hot-pressing sintering and brazing device. The microwave hot-pressing sintering and brazing device comprises a microwave resonance cavity. A microwave generating device is connected to one side of the microwave resonance cavity. An adjustable total-reflection terminal device is connected to the other side of the microwave resonance cavity. A pressurization system used for applying pressure to a sample is further arranged on the microwave resonance cavity. The microwave resonance cavity of the microwave hot-pressing sintering and brazing device is of a rectangular structure of interlayer water cooling. A cooling water inlet and a cooling water outlet are formed in the outer wall of the microwave resonance cavity. The front portion, the rear portion, the upper portion and the lower portion of the microwave resonance cavity are each provided with a cylindrical attenuation waveguide which is communicated with the interior of the microwave resonance cavity and used for preventing microwave leakage. An optical fiber infrared temperature measuring sensor used for measuring thermal cycle is arranged in front of the microwave resonance cavity. The microwave hot-pressing sintering and brazing device is high in heating speed and capable of saving energy sources and achieving integration of microwave heating, pressurization and atmosphere protection.

An ion beam treatment or implantation system includes an ion source emitting a plurality of parallel ion beams having a given spacing. A first lens magnet having a non-uniform magnetic field receives the plurality of ion beams from the ion source and focuses the plurality of ion beams toward a common point. The system may optionally include a second lens magnet having a non-uniform magnetic field receiving the ion beams focused by the first lens magnet and redirecting the ion beams such that they have a parallel arrangement having a closer spacing than said given spacing in a direction toward a target substrate.

The invention discloses a method and device for preparing nitrogen-doped carbon nanotubes by using microwave vapor deposition. The method comprises the following steps that carbon nanotube powder is placed in a closed cavity, and the cavity is vacuumized; nitrogen gas is introduced to the cavity, the flow rate and air pressure of the nitrogen gas are adjusted, and meanwhile microwave irradiation is conducted to make the gas in the cavity absorb microwave energy and be excited to generate plasma; nitrogen atoms after plasma treatment can be doped into the surfaces and internal structures of carbon nanotubes to form the nitrogen-doped carbon nanotubes, and by controlling the microwave power and nitrogen doping time, the nitrogen carbon nanotubes with different nitrogen contents are obtained.A nitrogen gas source is subjected to plasma treatment by adopting a microwave plasma technology. Since the microwave power and the energy density are high and radical groups have high activity, thegas can be easily dissociated; the nitrogen carbon nanotubes prepared by means of the method are high in quality and purity and facilitates the test and characterization of ferromagnetic properties, optical properties and other properties, and prepared samples show good ferromagnetism.

The invention provides a composition of a low-odor rubber sealing material. The composition is used for preparing the low-odor rubber sealing material, wherein a dithiophosphate accelerator without containing ammonia / amine is adopted as an accelerator, and nitrosamines and sulfides are not generated in a vulcanization process. The invention also provides a preparation method of the low-odor rubbersealing material, extrusion is controlled at a high extrusion temperature and a low extrusion speed, and volatilization of carried micromolecular substances is facilitated. Therefore, a prepared rubber sealing strip is low in odor and cannot volatilize gas with pungent smell at a high temperature.

The present invention relates to a microwave chemical reaction method in the field of basic chemistry, chemical reaction kinetics and chemicals, in particular to a method for increasing the chemical reaction speed under the low temperature. The present invention adopts an energy reverse ratio control method so as to increase the reaction speed, ensures rapid and continuous circulation of cooling medium to control the temperature of the reaction system lower than the safe temperature of the conventional thermochemical reaction, and at the same time provides the microwave radiation directly acted on reactant molecules so as to ensure the reactant to directly obtain the activated energy, greatly increase the ratio of the activated molecules in the reaction system and speed up the reaction speed. The present invention can rapidly activate the reactant molecules to participate in the effective crash and speed up the reaction speed; while speeding up the reaction, the system temperature can still maintain in the safe low-temperature state, thus not damaging the disordered heat of the reactant and target product molecule shape and the structure stability; at the same time, the thermal-sensitive side effects of chemical synthesis, extraction and other reactions are effectively reduced and even eliminated.

The invention discloses a quartz bell jar used for a microwave plasma chemical vapor deposition device. The lower end of quartz bell jar is provided with a cylindrical barrel; the upper end of the quartz bell jar is provided with a semispherical seal with a plurality of quartz circular rings; the quartz circular rings are distributed, in the form of a horizontal array, on the middle lower portion of the semispherical seal; the outer diameters of the quartz circular rings are the same as the outer diameter of the cylindrical barrel; and in case of externally applying air-cooling, the quartz circular rings achieve the effect of increasing heat dissipation. The quartz bell jar is applied to a microwave plasma chemical vapor deposition process, so that the heat dissipation capacity of the quartz bell jar can be effectively improved, the temperature of the quartz bell jar can be reduced, the deposition, to the inner surface of the semispherical seal, of active groups is decelerated, influences of sediments to plasma discharge and sample pollution are reduced, and etching, to the quartz bell jar, of the plasmas is relieved while the temperature of the quartz bell jar is reduced; and the quartz bell jar can be adopted to properly improve input microwave power, to increase the deposition rate of samples, and to improve the quality of the samples.

The invention discloses a multi-electron-beam traveling wave tube of an axisymmetric folded waveguide high-frequency slow wave structure. The multi-electron-beam traveling wave tube comprises an axisymmetric folded waveguide module and a coaxial periodic magnet focusing system arranged on the axisymmetric folded waveguide module, the axisymmetric folded waveguide module comprises an inner conductor and an outer conductor, and the outer conductor is sleeved outside the inner conductor. Outer fins are arranged on the outer wall of the inner conductor, inner fins are arranged on the inner wall of the outer conductor, the outer fins and the inner fins are embedded in a staggered manner to form the axisymmetric folded waveguide structure, and the inner conductor and the outer conductor are each provided with a plurality of electron beam channels. Through multiple electron beams, the space charge effect can be reduced, the total current is increased, and the microwave output power is increased. According to the present invention, the working frequency is improved through a high-order electromagnetic wave mode in the axial symmetry folded waveguide in the circumferential direction; the coaxial periodic magnet focusing system is beneficial to improving the axial component of a magnetic field in an electron beam channel and reducing the radial component, so that the electron beams can be transmitted more easily.

The invention provides a semiconductor microwave oven and a semiconductor microwave generator connecting structure for the same. The connecting structure comprises semiconductor microwave generators and an antenna, wherein the semiconductor microwave generators are connected with the antenna through an adapter socket and an adapter plug, which are matched. The semiconductor microwave generators directly transmits microwaves to an antenna head through the socket and the plug, which are matched, so that a transmission distance is shortened, the loss of the microwaves in a transmission process is reduced, and the connecting structure is simple, compact and low in transmission loss. The semiconductor microwave oven comprises a microwave oven cavity body, a waveguide port in the cavity body, two or more than two semiconductor microwave generators electrically connected with a direct current power supply, and a matched waveguide box, wherein the two or more than two semiconductor microwave generators are connected with the waveguide port through the waveguide box, and are connected with the antenna through the semiconductor microwave generator connecting structure; and the microwaves are guided into the waveguide box through the antenna. The semiconductor microwave oven is simple and compact in structure, the loss of the microwaves in a transmission process is low, and an adjustable heating range is wide; and the two or more than two semiconductor microwave generators can alternately work or be combined for work, and different power ranges can be selected according to needs to achieve required cooking effects and meet various cooking requirements.

The invention discloses a microwave plasma torch device with double microwave resonant cavities and a use method of the microwave plasma torch device. The microwave plasma torch device comprises a cavity part, a microwave coupling part and a tuning part, the cavity part comprises a resonant cavity I and a resonant cavity II which are coaxially arranged, and the resonant cavity II is arranged above the resonant cavity I; the first resonant cavity is of a coaxial resonant cavity structure with one end open, the microwave transmission mode is a TEM mode, and the second resonant cavity is of a resonant cavity structure supporting a TM010 transmission mode. The microwave coupling part can couple microwave energy to the cavity part in the modes of conductive coupling, capacitive coupling, magnetic field coupling and the like. According to the invention, the microwave radiation is reduced, the microwave power and the excitation capability of the plasma are improved, the damage of the microwave coupling part to the axisymmetric electromagnetic field distribution of the cavity part is reduced, the disturbance of the environment gas to the plasma is reduced, the applicable power range is wide, and the device can work in a range from low pressure to normal pressure.

The invention discloses a microwave load, which comprises a body, a wedge plug, absorption sheets, a water inlet pipe and a water outlet pipe. The body is a cuboid having a waveguide cavity. The sidewall of the body is provided with a V-shaped groove in the length direction of the cuboid; and the side wall of the body is provided with a plurality of first water passing holes in the width direction of the cuboid. The wedge plug comprises a side plate corresponding to the end surface of the body and a wedge portion, one end of which is connected with the side plate and which is corresponding tothe V-shaped groove. The wedge portion is provided with a plurality of second water passing holes. The absorption sheets comprise a first absorption sheet and a second absorption sheet connected withthe inner side surface of the waveguide cavity, and a third absorption sheet and a fourth absorption sheet connected with the two side surfaces of the wedge portion. The water inlet pipe and the water outlet pipe are communicated with the two ends of each of the first water passing holes and the two ends of each of the second water passing holes. The absorption sheets are placed on the surface ofthe wedge portion, so that absorption area is increased by times, and the absorption sheets are allowed to quickly transfer the absorbed microwave heat to the cooling water in the second water passing holes.

The invention relates to a konjac elastic jelly gel soap and a preparation method thereof. The konjac elastic jelly gel soap comprises the following components in terms of mass fractions: tamarind gum 1-7%, curdlan gum 1-5% , konjac flour 1‑5%, linseed gum 0.5‑2%, citric acid 0.1‑1%, glycerin 5‑20%, butanediol 2‑10%, extract 0.5‑2%, capryl glucoside 3‑10 %, essence 0.01-0.1%, pigment 0.01-0.1%, sucrose 7-10%, lauryl glucoside 10-20%, and the balance is water. The texture of the product of the invention is elastic, the gel strength is suitable, the drop resistance is good, and the water retention effect is good; the good water retention effect will lead to less water analysis of the product, will not absorb too much moisture in the air, and keep the product in a stable state.

The invention provides a semiconductor microwave oven and a semiconductor microwave generator connecting structure for the same. The semiconductor microwave oven comprises semiconductor microwave generators connected with a direct current power supply, and a waveguide box connected with a port formed in a semiconductor microwave oven cavity body. The waveguide box is provided with a waveguide hole communicated with the waveguide port. Two or more than two semiconductor microwave generators are connected with the same waveguide box. Each semiconductor microwave generator is provided with the semiconductor microwave generator connecting structure. A connected antenna is connected into the waveguide box through the waveguide hole. The guided-in microwaves of the semiconductor microwave generators are in the same direction or isolated from each other. According to the semiconductor microwave generator connecting structure, the semiconductor microwave generators are connected with the antenna through a bendable microwave transmission part, and the microwaves are guided into the waveguide box through the antenna. The structural limitation of the space of the cavity body to the arrangement of the semiconductor microwave generators and the waveguide box is avoided, so that the semiconductor microwave oven is simple and flexible in structure and low in transmission loss, and microwave transmission requirements are met; and two or more than two semiconductor microwave generators connected with the direct current power supply share one waveguide box, and influence between the microwaves is avoided, so that the semiconductor microwave oven is simple and compact in structure, high in microwave power and wide in adjustable heating range, and the technical problems of complex structure and incapability of arranging a plurality of semiconductor microwave generators due to interference between the microwaves in the prior art are solved.

The invention discloses a microwave cooking device. The microwave cooking device comprises a cooking cavity body, a microwave source, a first antenna and a second antenna, wherein a cooking chamber is arranged in the cooking cavity body and is a rectangular shape of which a length direction is directed along a left-right direction, a first antenna feeding hole is formed in a left side wall of the cooking chamber, a second antenna feeding hole is formed in a right side wall of the cooking chamber, the microwave source is arranged on the cooking cavity body and is arranged below the cooking chamber, the first antenna is provided with a first feeding end and a first emission end, the first feeding end is connected with the microwave source, the first emission end extends to the cooking chamber through the first antenna feeding hole, the second antenna is provided with a second feeding end and a second emission end, the second feeding end is connected with the microwave source, and the second emission end extends to the cooking chamber through the second antenna feeding hole. By the microwave cooking device disclosed according to the invention, the microwave transmission efficiency is high, and the microwave heating effect is good.

The invention relates to a microwave power confocal synthesis device. Aiming at the shortages that the microwave power synthesizer in the prior art has relatively high requirements on microwave sources, the system structure is complicated and the cost is high, the invention discloses a microwave power confocal synthesis device. The microwave power confocal synthesis device synthesizes the power of multiple paths of microwaves to obtain a large-power microwave, so that the cost of large-power microwave equipment is reduced. The technical scheme of the invention is that: the microwave power confocal synthesis device comprises at least two microwave input ends and the corresponding waveguide cavities. The waveguide cavity comprises a bottom surface, a top surface and a side wall vertical to the bottom surface and the top surface, wherein the bottom surface and the top surface are parallel to each other; the orthographic projection of the side wall on the bottom surface or the top surfaceis an elliptical arc; the microwave input end is arranged on a focus of the elliptical arc; the other focus of the elliptical arc is superposed and is a microwave gathering end; and the microwaves inputted by the microwave input ends are gathered at the microwave gathering end after passing through the waveguide cavities. The microwave power confocal synthesis device can be used for generating plasmas.

The invention provides a microwave oven comprising at least two semiconductor microwave generators and a waveguide box, wherein the semiconductor microwave generators are connected with a direct current power supply; the waveguide box is connected with a waveguide opening arranged on a chamber body of the microwave oven; the waveguide box is provided with a plurality of waveguide holes communicated with the waveguide opening, wherein the amount of the waveguide holes is the same as the amount of the semiconductor microwave generators; the semiconductor microwave generators are respectively connected with the waveguide holes; and the waveguide box is provided with a plurality of independent waveguide spaces corresponding to all the waveguide holes. The purpose that at least two semiconductor microwave generators connected with the direct current power supply share a common waveguide box is achieved; microwaves generated by each semiconductor microwave generator are respectively transmitted from the independent waveguide spaces of the waveguide box to the chamber body so that mutual interference of the microwaves is avoided; and the microwave oven has the following characteristics of simpler and more compact structure, high microwave power and wide adjustable heating range.

The invention relates to konjak elastic jelly gel soap and a preparation method thereof. The konjak elastic jelly gel soap is prepared from the following components in parts by mass: 1-7% of tamarindgum, 1-5% of curdlan, 1-5% of konjaku flour, 0.5-2% of flaxseed gum, 0.1-1% of citric acid, 5-20% of glycerol, 2-10% of butanediol, 0.5-2% of an extract, 3-10% of caprylyl / capryl glucoside, 0.01-0.1%of essence, 0.01-0.1% of pigment, 7-10% of sucrose, 10-20% of lauryl glucoside and the balance of water. According to the invention, the product disclosed by the invention is rich in elasticity in texture, proper in gel strength, good in drop resistance and good in water retention effect; and the good water retention effect can cause less water separation of the product, and the condition that toomuch water in the air are absorbed can be avoided, so that the product is kept in a stable state.

The invention discloses a high-temperature and high-pressure microwave chemical reactor which comprises a pressure-bearing shell with an inner cavity structure, a stirring system arranged on the top of the pressure-bearing shell and a microwave feeder arranged on the side wall of the pressure-bearing shell, wherein the stirring system mainly comprises a motor, a speed reducer, a bearing and a stirrer; the motor is in power connection with the speed reducer; the stirrer is in power connection to a power output shaft of the speed reducer; the bearing is arranged on the top of the stirrer; the lower part of the stirrer is arranged in the inner cavity of the pressure-bearing shell; a material inlet / outlet is formed in the top of the pressure-bearing shell; a liquid drainage opening is formed in the bottom of the pressure-bearing shell. The high-temperature and high-pressure microwave chemical reactor disclosed by the invention is provided with a plurality of layers of microwave feeding devices, and a plurality of transverse or vertical microwave feeding devices are arranged at each layer, so that multiple microwave feeding openings are formed; furthermore, the stirrer is arranged in the reactor, mediums in the overall reactor are subjected to uniform microwave radiation and can generate full chemical reaction. The high-temperature and high-pressure microwave chemical reactor is high in microwave utilization rate, and the microwave power is high after microwaves are fed.

The invention relates to a radar sensor for a motor vehicle (44) having a transmitting antenna (Tx) in the form of a planar combined antenna with a plurality of Antenna elements (10, 12, 14, 16) arranged side by side, said feed network for delivering microwave power to said antenna elements, characterized in that said feed network (26) is configured for feeding said The antenna elements (10, 12, 14, 16) deliver microwave power with a phase shift that increases in constant increments from one end of the row to the other.