37results about How to "Small temperature change" patented technology

The present application relates to a kind of systems for improving the thermal efficiency of underwater transport platform fuel cell auxiliary system, including water circulation pipeline consisting of fuel cell stack, alloy hydrogen storage tank assembly, circulating water tank and circulating water pump in series;Hot water delivery pipeline;And, oxygen inlet pipeline and hydrogen inlet pipeline;The water outlet of the circulating water tank is divided into two routes, one is connected with fuel cell stack, another is connected with hot water delivery pipeline;The hot water delivery pipeline includes heating water tank that can provide hot water to fuel cell stack, and heating device in heating water tank and heat release by chemical reaction.The present application provides suitable circulating hot water in the temperature range of fuel cell stack and alloy hydrogen storage tank assembly by chemical reaction of heating agent and water heat release for fuel cell system when cold start, high-power variable load and continuous high-power operation, without increasing power consumption, so that the efficiency of the whole system is improved by more than 10%.

The utility model discloses a stem cell cryopreservation bag, relates to medical instrument supplies technical field, the cryopreservation bag includes bag body mechanism, infusion mechanism, sampling mechanism, bag body mechanism includes storage bag, storage bag end fixed connection sealed edge, infusion mechanism is used for transporting stem cell and cryopreservation liquid, sampling mechanism is used for sampling, the sampling mechanism is used for sampling, the bag body mechanism is used for storing the stem cell and cryopreservation liquid, and the bag body mechanism is used for storing the stem cell and the cryopreservation liquid. The infusion mechanism is fixedly connected with the lower surface of the storage bag, and the upper surface of the storage bag is fixedly connected with the sampling mechanism. Meanwhile, a seal, a sampling tube and a sample bag are mounted at the top of the storage bag, so that part of stem cells can be independently isolated, and the effect of not polluting the stem cells in the cryopreservation bag is achieved.

The utility model relates to the technical field of water bath heating, and discloses a water bath heating device which comprises a water bath box, a heating mechanism is arranged in the water bath box, a stirring mechanism is arranged in the water bath box, a fixing frame is fixedly installed at the bottom of the water bath box, and an observation window is formed in the front face of the water bath box. A liquid inlet pipe is fixedly mounted on the right side of the water bath box, a liquid discharge pipe is fixedly mounted on the left side of the water bath box, the heating mechanism comprises a lifting assembly and a heating assembly, and the heating assembly is arranged at the bottom of the lifting assembly. According to the water bath heating device, heat of water in the water bath box is uniform, it is guaranteed that the water bath heating temperature of materials is constant, the temperature change of the water is reduced, and the water bath heating effect on the materials is better; the lifting frame is lifted to drive the box door to be opened towards the two sides through the connecting rods, and workers do not need to manually lift the top cover; workers do not need to be in contact with hot air in the water bath box, so that the injury risk of the workers is reduced.

The stem cell sample constant-temperature box comprises a box body, a sealing cover is hinged to one side of the top of the box body, the interior of the box body is divided into a storage cavity and a transmission cavity through a partition plate fixedly installed at the bottom, a transmission rotating shaft is rotatably installed at the center of the partition plate, and one ends of a plurality of placement plates are slidably connected to the transmission rotating shaft; the placing plate is movably arranged in the storage cavity, the other end of the placing plate is slidably connected with a plurality of guide sliding rails, the guide sliding rails are fixedly installed on the inner wall of the bottom of the storage cavity, a first dovetail sliding groove is formed in the inner wall of one side of the storage cavity, one side of a lifting assembly is slidably clamped in the first dovetail sliding groove, and the other side of the lifting assembly is slidably clamped to the other end of the placing plate; the bottom of the lifting assembly is connected with a threaded rod through a threaded structure, the threaded rod is rotationally installed in the first dovetail sliding groove, the bottom end of the threaded rod is in transmission connection with a transmission switching assembly, and the transmission switching assembly is slidably arranged on one side of the bottom of the box body.

The application belongs to the technical field of building ventilation, and particularly relates to a building energy-saving ventilation equipment, which comprises a sewage vertical pipe and a sewage elbow pipe, the sewage elbow pipe is communicated with the sewage vertical pipe, an elastic air bag is fixedly installed on the vertical part of the sewage elbow pipe, the elastic air bag is arranged in a ring shape, an air suction pipe is fixedly inserted into the side wall of the sewage elbow pipe and communicated with the elastic air bag, an insulation machine cylinder is fixedly inserted into the side wall of the sewage elbow pipe and communicated with the elastic air bag. The building energy-saving ventilation equipment can automatically ventilate according to the type of excrement, is beneficial to energy saving and consumption reduction, the ventilation position is located around the closestool or squatting pan, the peculiar smell generated by the excrement can be timely dissipated, the temperature change in the toilet caused by ventilation and air exchange can be effectively reduced, the excrement blockage can be assisted to be discharged, the excrement can be automatically timely flushed, and the ventilation and air exchange in the toilet can be ensured to be timely.

The invention provides an infrared correction device for an optical system, and belongs to the technical field of infrared photoelectric detection systems. A sliding unit; the black body is fixed on the sliding block of the sliding unit, the sliding block is fixedly connected with the spectroscope, and the black body is located on one side of the projection surface of the spectroscope and used for providing a constant-temperature black body light source for the infrared detector; and the driving mechanism drives the black body to cut in or out of the optical path of the optical system. According to the infrared correction and wave band light splitting device based on the constant-temperature source black body, through matching parameter design among the units, non-uniform correction is carried out on an infrared optical system, the influence of environmental factors on the infrared optical system is greatly reduced, and the imaging quality of the infrared optical system is ensured; and due to waveband light splitting, the common-aperture multi-waveband fusion design of the optical system is realized, and the function of the product is improved.

The invention provides an OLIF approach lumbar vertebra fusion cage and fixing piece device and a manufacturing method of the OLIF approach lumbar vertebra fusion cage and fixing piece device. According to the device, reinforcing ribs and grids are arranged on a fusion cage, a right upper through hole and a left lower through hole which are vertically and obliquely crossed are formed in the right rear end of the fusion cage, the front end of the exterior of a fixing part body is conical and provided with self-tapping threads, the rear end of the exterior of the fixing part body is provided with external threads, and a stretching mechanism is arranged in the fixing part body. The anti-retreating mechanisms are arranged on the two sides of the front outer portion of the fixing piece body and connected with the stretching mechanism through the medical steel wires. The method comprises the following steps: 1, constructing a model; 2, 3D printing manufacturing; 3, assembling the fixing piece main body; 4, preparing a bone induction factor solution; 5, soaking the fusion cage; 6, disinfection treatment; and 7, storing at low temperature. According to the device, the fusion cage is in threaded connection with the fixing part main body, so that the stability of the fusion cage in the gap between the upper vertebral body and the lower vertebral body is improved, and the postoperative displacement and retreating of the fusion cage are effectively prevented.

The invention relates to a silicon carbide growth device which comprises a graphite crucible, a first heating assembly and a second heating assembly, the graphite crucible is used for accommodating a silicon solution; the first heating assembly is arranged on the bottom wall of the graphite crucible and is used for reducing the temperature gradient of the silicon solution in the radial direction of the graphite crucible; and the second heating assembly is arranged on the side wall of the graphite crucible and is used for reducing the temperature gradient of the silicon solution in the axial direction of the graphite crucible. The actual effects of the first heating assembly and the second heating assembly can be complementary, through mutual cooperation of the first heating assembly and the second heating assembly, the temperature uniformity of a silicon solution in the axial direction and the radial direction of the graphite crucible can be improved at the same time, the controllability and predictability of the temperature of the lower end of a seed rod are effectively improved, and the production efficiency is improved. The temperature of the lower end of the seed rod can be well maintained in an ideal growth temperature range of silicon carbide, so that the growth quality of the silicon carbide is improved.

The invention relates to the technical field of energy storage equipment, in particular to an energy storage power station capable of reducing loss and a system thereof.The energy storage power station comprises an assembly bottom plate, a plurality of control boxes are arranged on the assembly bottom plate, a plurality of energy storage batteries are further installed on the assembly bottom plate, first protective sleeves are arranged at the bottoms of the energy storage batteries, and top protective covers are movably installed at the tops of the energy storage batteries; when the energy storage battery works, heat is transmitted to the inner heat preservation shell through the multiple heat dissipation fins, an energy storage assembly in the energy storage battery is influenced, heat preservation measures can maintain the energy storage battery within a proper working temperature range, the performance of most energy storage batteries is optimal within a certain temperature interval, and good heat preservation can reduce performance degradation caused by temperature changes. The battery can still maintain relatively stable output power and energy efficiency at low temperature, the temperature change amplitude of the battery in the charging and discharging process can be reduced through heat preservation, battery damage caused by thermal stress and material performance change is reduced, and therefore the cycle life of the battery is prolonged.

The invention relates to the field of laser processing, and discloses a gain optical fiber with low numerical aperture and stable absorptivity, an optical fiber laser and laser processing equipment, the gain optical fiber comprises a gain fiber core, a step layer and a cladding, the refractive index of the gain fiber core, the refractive index of the step layer and the refractive index of the cladding are sequentially reduced, the gain optical fiber has stable pump light absorptivity at the wave band of 900-1000 nm, and the step layer and the gain fiber core form a low numerical aperture structure. The gain optical fiber with low numerical aperture and stable absorptivity has high absorptivity for pump light in a wide wavelength range, the influence of the fluctuation of the central wavelength of the pump light on the light output power of the gain optical fiber is reduced, and the stability of the power output by the gain optical fiber is improved; the step layer is arranged between the cladding and the gain fiber core, so that the numerical aperture of the gain fiber core is reduced, the laser output with high beam quality is maintained, the unstable power threshold of a transverse mode is increased, and the optical coupling efficiency and the stability of the transverse mode output by the gain fiber are improved.

The utility model relates to the technical field of heating and ventilation equipment, and discloses an assembled composite air pipe which comprises a flow dividing pipe, the end portion of the flow dividing pipe is connected with a control mechanism used for adjustment through a bolt, and the end portion of the flow dividing pipe is connected with a connecting pipe used for connection and fixation through a bolt. A guide pipe used for drainage is inserted into the inner wall of the connecting pipe, the outer surface of the guide pipe is sleeved with a heat preservation layer used for heat insulation, main baffles used for connection and fixation are clamped to the two sides of the outer surface of the heat preservation layer, and an auxiliary baffle used for auxiliary protection is clamped to the portion, located between the main baffles, of the outer surface of the heat preservation layer. According to the assembled composite air pipe, through the arrangement of the control mechanism, the device can adjust the air conveying direction, meanwhile, by means of a baffle in the control mechanism, the air flow speed can be adjusted after the device rotates to a proper angle, and after the baffle is completely closed, airflow can be blocked, and the effect of controlling the flow speed can be achieved.

The utility model discloses a kind of building roof anti-seepage structures, including the waterproof layer being arranged on surface layer, the heat preservation and exchange structure being arranged on waterproof layer and the anti-seepage structure being arranged on the heat preservation and exchange structure;The heat preservation and exchange structure includes the foamed cement layer being arranged on surface layer, the capillary network being embedded in the bottom of foamed cement layer and being arranged on surface layer, the phase change layer being embedded in foamed cement layer;The anti-seepage structure includes the anti-cracking mortar layer being sequentially arranged from bottom to top, cement mortar screed, waterproof roll material and waterproof protective surface layer, and the cement mortar screed is arranged on foamed cement layer.The utility model is simple in structure, absorbs or emits heat through heat preservation and exchange structure, reduces heat accumulation or promotes heat emission, to reduce the cracking caused by thermal stress;Through anti-seepage structure to roof top carries out waterproofing and anti-cracking, adapt to external harsh environment, to realize building roof anti-seepage, improve service life.

The invention belongs to the technical field of scanning tunneling microscopes, and particularly relates to a stable-imaging scanning tunneling microscope and a scanning imaging method. A scanning tunneling microscope capable of stable imaging comprises a microscope body, the microscope body comprises an outer frame, a driving unit, a sliding unit, a sample holder and a scanning unit, the outer frame is hollow, the driving unit and the sample holder are arranged at the two ends of the interior of the outer frame respectively, the sliding unit is arranged on the side wall of the interior of the outer frame, and the sample holder is arranged on the side wall of the interior of the outer frame. The scanning unit is fixedly arranged at the end, close to the sample holder, of the sliding unit, and the driving unit drives the sliding unit to push the scanning unit to conduct needle inserting or needle withdrawing in the length direction of the outer frame. The imaging quality and stability can be improved, and the situation of needle collision is avoided as much as possible.

The utility model relates to the field of selenium product production equipment, in particular to freeze-drying equipment for selenium-containing protein powder production, which comprises a shell, a freeze-drying cabin arranged in the shell, a large cabin door arranged on the side surface of the freeze-drying cabin, a discharge cabin arranged below the freeze-drying cabin, and a small cabin door arranged on the side surface of the discharge cabin. A sliding door assembly is arranged between the discharging bin and the freeze-drying bin, a rotating shaft is horizontally arranged in the freeze-drying bin, a plurality of supporting arms are arranged on the side face of the rotating shaft, connecting mechanisms are rotationally arranged at the ends of the supporting arms, and the connecting mechanisms are connected with storage boxes. The utility model has the advantages of reducing the temperature rise in the freeze-drying equipment and saving energy.

A method for controlling a supply amount of an electrode slurry according to one embodiment of the present disclosure comprises the steps of: supplying a slurry from a first tank to a coater; supplying the slurry to the first tank for a predetermined time from a second tank connected to the first tank when the storage amount of the slurry in the first tank decreases and the level of the first tank reaches a first predetermined level; and automatically interrupting the supply of slurry from the second tank to the first tank after a predetermined time has elapsed.

This application relates to the field of radiator technology, and in particular to a radiator housing structure and heat dissipation device, including a housing body with a receiving groove in the middle. A honeycomb groove structure with a depth direction aligned with the depth direction of the receiving groove is provided within the receiving groove, and the height of the honeycomb groove structure is no higher than the receiving groove. This solves the problem that conventional radiator housings are not conducive to miniaturization and thinning.

The present invention discloses a polymer hardness testing device, including a body, a hardness meter and a pressure-bearing platform that can be lifted and lowered on the body, and also including a test chamber, a feeding mechanism, a water absorption component, a discharging mechanism and a temperature control mechanism. The test chamber is fixedly connected to the body, the hardness meter and the pressure-bearing platform are both located inside the test chamber, the feeding mechanism is used to transport the test piece to the inside of the test chamber, the water absorption component is arranged inside the feeding box, and is used to absorb the moisture on the surface of the test piece, the discharging mechanism is used to collect the test piece after the test, the temperature control mechanism is used to control the temperature in the test chamber, the temperature control mechanism includes a temperature controller, a fan and a connecting pipe, the temperature controller is fixedly installed inside the test chamber, the fan is installed inside the test chamber, and the test chamber is connected to the feeding mechanism and the discharging mechanism through the connecting pipe. The present invention solves the problem that the external temperature and humidity changes in the prior art affect the test results.

The present invention relates to the technical field of hydrogen engine and tail gas treatment, and relates to a hydrogen engine emission treatment system and method. The system includes a dewatering unit, a condensing unit and a ventilation duct connecting the two units, the dewatering unit includes a moisture absorption and filtering subunit, the moisture absorption and filtering subunit includes a first shell, a movable plate, a closing plate and a ventilation plate, the movable plate is driven to be connected to the side of the shell top away from the ventilation duct, the closing plate is driven to be connected to the side wall near the top of the shell, and the ventilation plate is driven to be connected to the side wall of the shell outside the dewatering unit. After the tail gas enters the dewatering unit, according to the different connection positions of the movable plate and the inner wall of the dewatering unit and the opening and closing conditions of the closing plate and the ventilation plate, it enters the ventilation duct only after passing through the inside of the shell or only after passing through the outside of the shell. Compared with the prior art, the present invention has the advantages of effectively reducing the influence of high water vapor on the working efficiency of the catalyst, while not affecting the exhaust temperature, ensuring that the catalyst has a higher conversion efficiency at a higher temperature, etc.

The present application relates to a multi-axis system of a flexible plate washing device, belonging to the field of printing plate making technology, which includes: the multi-axis system is arranged on a skeleton structure for supporting the plate washing device, a plate transmission part, the plate transmission part is installed on the skeleton structure, the plate transmission part is at least used to drive the plate to move and make the plate produce rotational displacement; the material transmission part is installed on the skeleton structure, the material transmission part is at least used to drive the plate washing material to move and make the plate washing material produce rotational displacement; the plate transmission part and the material transmission part cooperate with each other during the material transmission process of the two, so that the side of the plate washing material abuts against the surface of the plate, and then the black film on the surface of the plate is adhered. In order to reduce the impact of the flatness of the plate washing material on the plate washing effect as much as possible, the present application provides a multi-axis system of a flexible plate washing device.

The present application relates to the technical field of centrifuge control, and particularly relates to a centrifuge temperature control parameter optimization method and system, which comprises the following steps: collecting multiple parameters of the centrifuge to construct a sample data set; training an XGBoost stage classification model based on the sample data set, and outputting the working condition probability of the centrifuge, presetting the chamber temperature and refrigeration power of the centrifuge at the next moment, calculating the temperature precision penalty coefficient, the temperature change rate risk coefficient and the energy consumption penalty coefficient, dynamically adjusting the weights of the temperature precision penalty coefficient, the temperature change rate risk coefficient and the energy consumption penalty coefficient based on the proportion of steady speed, speed up and speed down in the real-time working condition to construct a target function, and calculating the comprehensive control error; selecting multiple groups of historical data most similar to the current working condition as reference data, selecting the compressor speed corresponding to the reference data that minimizes the comprehensive control error as the optimal speed by traversing each reference data, and delivering the optimal speed to the compressor for execution, thereby improving the temperature control precision of the centrifuge.

The invention relates to the technical field of valves, in particular to a valve system with a remote monitoring function, which comprises a valve main body, the valve further comprises a valve element, a shielding mechanism, a temperature adjusting mechanism and a monitoring mechanism, the valve element and the shielding mechanism are both installed in the valve body, and the temperature adjusting mechanism and the monitoring mechanism are both installed on the valve body. The valve body is installed on a conveying pipeline, gas or liquid flows through the valve body and the valve element, the flow speed of the gas or the liquid is adjusted through operation of the valve element, meanwhile, the valve element is protected through the shielding mechanism, abrasion of particulate matter to the valve element is reduced, and the temperature of the valve element is adjusted through the temperature adjusting mechanism; and the operation condition of the valve element is monitored through the monitoring mechanism, the monitoring result is transmitted to a monitoring room, workers can conveniently know the operation condition of the valve element in real time, and therefore the practicability of the equipment is improved.

A fully automatic monitoring celadon kiln comprises a furnace frame and a furnace body, wherein the furnace body is fixedly mounted on the inner side of the furnace frame, a firing chamber is arranged on the inner side of the furnace body, support parts are arranged on the left and right sides of the lower end of the furnace body, a placement part is arranged on the upper end of the support part, evenly arranged combustion tubes are arranged on the upper end of the placement part, one end of a ventilation pipe is arranged on the inner side of the lower end of the combustion tube, a mixing tube is sealedly connected to the other end of the ventilation pipe, an oxygen pipe is arranged at the front end of the mixing tube, a fuel pipe is arranged at the rear end of the mixing tube, a dividing strip is arranged on the upper end of the placement part, a guide rail is arranged at the bottom of the furnace body, a kiln car is arranged on the upper end of the guide rail, a rotating shaft is arranged on the right side of the front end of the furnace frame, fixing parts are arranged on the outer sides of the upper and lower ends of the rotating shaft, a sealing door is arranged at the front end of the furnace body, and the right end of the sealing door is rotatably connected to the outer side of the rotating shaft through a hinge.

The embodiment of the invention provides an operation control method, device and equipment for an air conditioner in a machine room and a storage medium, according to the method, two PID controllers are adopted for cascade control so as to conduct cascade regulation, the change of the current power of a server cabinet input by the second PID controller can be detected in time, and the current power does not have hysteresis like the change of temperature, so that the stability of the server cabinet is improved, and the service life of the server cabinet is prolonged. Therefore, the refrigerating capacity can be adjusted in advance through the second PID controller after the power of the server changes, and the temperature change amplitude is smaller than the temperature change amplitude adjusted by a single PID controller in this way, so that the temperature change amplitude of the machine room can be reduced, the thermal stabilization time of the machine room is shortened, and the service life of the machine room is prolonged. The operation stability of the machine room air conditioner is improved.

The application discloses a storage bottle and a storage device. The storage bottle comprises a bottle assembly, which comprises an inner bottle and an outer bottle arranged at intervals, the inner bottle is arranged in the inner part of the outer bottle and a sandwich is formed between the inner bottle and the outer bottle, one end of the outer bottle is provided with a bottle mouth, the inner bottle is surrounded to form a storage cavity, and the storage cavity is arranged to be open on one side of the bottle mouth. Wherein, the outer bottle is at least partially provided with a light shielding structure; a bottle cap is detachably connected to the bottle mouth; and a sealing element is arranged in a hollow ring shape and is sealingly arranged on the bottle mouth, and the inner ring surface of the sealing element is configured to be attached to the outer circumferential surface of the inner bottle body loaded in the storage cavity. In this way, the storage bottle provided by the application can prevent moisture and volatilization when storing the atomization substrate.

The application belongs to the technical field of semiconductor laser, and relates to a high-performance VCSEL semiconductor laser based on a diamond film. The application aims to solve the problems of low working temperature (600), wide line width and poor beam quality of the VCSEL. The main scheme comprises a substrate (101), a heat dissipation layer (102), a first electrode (103), a first DBR reflection layer (104), a first oxidation limiting layer (105), an active layer (106), a second oxidation limiting layer (107), a second DBR reflection layer (108), and an insulating heat dissipation layer (109) arranged from bottom to top. The insulating heat dissipation layer (109) is provided with a second electrode (110) connected with the second DBR reflection layer (108), and the second electrode is covered with a heat insulation layer.

The utility model discloses an autoclaved aerated concrete block, which relates to the technical field of soil blocks, and comprises a first brick and a second brick, the first brick and the second brick are made of the same material, the right side of the first brick and the right side of the second brick are fixedly connected with a group of symmetrical clamping plates, the clamping plates are wave-shaped, and the right side of the first brick and the right side of the second brick are fixedly connected with the clamping plates. Clamping grooves are formed in the left side of the first brick body and the left side of the second brick body correspondingly, and the clamping plates are matched with the clamping grooves. By means of the connecting mechanism, the rotary knob in the groove is rotated to drive the driving rod to rotate in the second brick, so that the containing groove is rotated away from the driving ball, the positioning groove is made to be close to the driving ball till the driving ball is partially clamped into the positioning groove, and in other words, under the action of the connecting rod, the limiting columns are separated from one another; and the limiting columns are clamped into the limiting holes of the clamping plates, so that the first brick body and the second brick body are fixedly connected, the connection tightness between the first brick body and the second brick body is enhanced, and the connection firmness of the wall is improved.

The invention discloses an intelligent production line for electrolytic reduction of rare earth metals and alloys. The centralized control operation display platform implements centralized and coordinated control of all equipment, and performs real-time data communication with other equipment. The powdered rare earth oxide raw material is continuously and controllably fed at a controllable rate through a metering feeder. The feeding process is more uniform than manual timed intermittent feeding, and the temperature variation range in the molten pool of the molybdenum alloy electrolytic cell is reduced. The efficiency of the electrochemical reaction in the molten pool can be effectively improved, and the time required for the reaction can be shortened. At the same time, the actual loss of the electrolytic cell, anode and cathode is monitored during the production process. The cathode drive component accurately controls the three-dimensional micro-movement of the cathode rod, improves the uniformity of the circumferential radial distribution of the cylindrical electric field, is conducive to improving the stability of product quality and saving energy, and solves the technical problem of relying on manual experience in operating procedures in the prior art.

The invention relates to a battery assembly, and the battery assembly comprises a plurality of battery cells which are in a cylindrical shape; the accommodating part is used for forming an arrangement space for accommodating the plurality of battery cells; the accommodating shell comprises an accommodating space used for accommodating the plurality of battery cells and the accommodating part; an accommodation bottom surface forming a bottom surface of the accommodation space and including a communication hole; an exhaust space provided across the accommodating bottom surface; and a communication hole formed in the accommodating bottom surface and communicating the accommodating space and the exhaust space, the accommodating member including: a support portion forming a bottom surface of the accommodating member and supported by the accommodating bottom surface; a curved surface portion extending from the support portion toward the plurality of cells and formed as a curved surface corresponding to a portion of the outer peripheral surface of each of the plurality of cells so as to face the plurality of cells; the through hole penetrates through the supporting part at the position corresponding to the communicating hole.

A slurry for plasma spraying, which contains 20 mass% or more and 80 mass% or less of alumina particles having a maximum particle diameter (D100) of 15 μm or less, with 1 or 2 or more selected from water and organic solvents as a dispersion medium, has a transmittance of 90% or less for a supernatant after 700 mL of the slurry for plasma spraying is put in a 1-L container having a height of 193 mm and left to stand at room temperature for 168 hours. By using the slurry for plasma spraying of the present application, an alumina-containing sprayed film having a low porosity, a sufficient film thickness, and a small temperature change in resistance per unit volume can be stably formed on a substrate, and a sprayed member having such a sprayed film can be used for an electrostatic chuck.

The utility model discloses a novel external thermal insulation structure based on ceramic microbead coating, which comprises an external wall body, the end face of the external wall body is provided with a reinforcing structure, the reinforcing structure comprises a plurality of settlement rods, a plurality of vertical reinforcing rods and a plurality of transverse reinforcing rods are welded among the plurality of settlement rods, and the vertical reinforcing rods and the transverse reinforcing rods are welded among the plurality of settlement rods. A plurality of settlement rods are arranged on the outer side of the outer wall body, a first pressing connection plate and a second pressing connection plate are welded to the multiple settlement rods respectively, a base layer wall body is arranged on the outer side of the outer wall body, a ceramic microbead coating layer is arranged on the outer side of the base layer wall body, and a reflection isolation coating layer is arranged on the outer side of the ceramic microbead coating layer. The connection strength is improved, falling is prevented, the connection stability and integrity of the base layer wall body and the ceramic microbead coating layer are kept through the first pressing connection plate and the second pressing connection plate, falling and loosening are prevented, in order to improve heat preservation and heat insulation, the reflection isolation coating layer is arranged on the outer side of the ceramic microbead coating layer, and sunlight can be reflected conveniently.