181results about How to "Improve contact effect" patented technology

The invention belongs to the technical field of back contact cells, and particularly relates to a joint passivation back contact cell and a post-texturing preparation method thereof, and the method comprises the steps: S102, sequentially forming a first semiconductor layer and a mask layer on the back surface of a silicon substrate; s103, cleaning and texturing are carried out, so that a texturing surface is formed on the light receiving surface of the silicon substrate, and the maximum height of a pyramid of the texturing surface of the light receiving surface is T1; s104, sequentially forming a passivation layer and an anti-reflection layer on the light receiving surface of the silicon substrate; s105, forming a second semiconductor opening region; s106, cleaning and etching are carried out, and a groove structure is at least formed in the second semiconductor opening region on the back surface of the silicon substrate; and S107, depositing a second semiconductor layer on the back surface, wherein the second semiconductor layer comprises an amorphous passivation layer and a second doped silicon layer. Under the conditions of simplifying the process steps and reducing the material cost, the interface contact resistance of the second semiconductor opening region can be reduced, the minority carrier lifetime is prolonged, and the cell efficiency and the double-sided rate are improved.

The invention discloses a heat treatment device for drill bit production, relates to the technical field of drill bit heat treatment, and solves the problems that when an existing heat treatment device for drill bit production is used, originally thrown-away chippings and oxide skin can be rolled into quenching liquid again and possibly attached to the surface of a drill bit again. A quenching barrel and an induction furnace are fixedly connected to the two ends of the base respectively, a support is fixedly connected to the top of the base, a first motor is embedded into the top of the support, a U-shaped frame is rotationally connected to the top of the support, and the end of a main shaft of the first motor is fixedly connected with the bottom of the U-shaped frame; the two ends of the top of the U-shaped frame extend towards the two sides correspondingly to form a pair of symmetrical bearing parts, and reciprocating lead screws are arranged at the bottoms of the bearing parts correspondingly. The drill bit heat treatment device has the advantages of being good in chipping and oxide skin removal effect and high in drill bit heat treatment efficiency.

The invention relates to the technical field of refrigerating units, in particular to a refrigerating unit with high heat exchange efficiency, which comprises a top cover and a main body frame, a condenser is fixedly connected to the rear side of the lower part of the inner wall of the main body frame, a plurality of layers of partition plates are arranged on the front side of the condenser, and an air inlet assembly is mounted in the front side of the main body frame; a fan assembly is arranged on the front side of the partition plate, and a circulating assembly is installed on the inner side of a sleeve support in the fan assembly. Through cooperation of the air inlet grille, the blades, the heat exchange pipe, the first water inlet pipe and the water drainage pipe, the length and time needed by airflow to pass through the grille are increased, the inclined air inlet grille enables the airflow which flows backwards uniformly originally to be concentrated inwards, the airflow is concentrated on the surfaces of the blades, and the heat exchange effect is improved. The pits on the surfaces of the blades further increase the contact area of the air flow and the blades, so that the problems that the time needed when the air flow passes through the heat exchange tube is short, the contact area is limited, and the heat exchange efficiency is low are effectively solved.

The invention relates to a preparation method of a solar cell, the solar cell and a photovoltaic module. The preparation method of the solar cell comprises the steps that a substrate is provided, the substrate is provided with a first surface and a second surface which are oppositely arranged in the thickness direction perpendicular to the substrate, and at least one of the first surface and the second surface is defined as a target surface; forming a first tunneling layer, a first doped semiconductor layer, a second tunneling layer and a second doped semiconductor layer which are stacked on the target surface of the substrate in the direction away from the substrate to obtain a passivation structure; a plurality of holes are formed in the second tunneling layer; and performing annealing treatment on the passivation structure to increase the size of the hole in the direction parallel to the reference plane. According to the preparation method of the solar cell, the passivation performance of the solar cell can be improved, and the contact performance of the solar cell can also be improved.

The invention provides a hydrophobic deep-eutectic solvent taking tea saponin and tea polyphenol as hydrogen bond donors and application of the hydrophobic deep-eutectic solvent in a camellia oil washing and caring product. According to the invention, coco fatty acid diethanolamide and lauryl betaine are respectively used as hydrogen bond acceptors, tea saponin and tea polyphenol are used as hydrogen bond donors, and the hydrophobic deep-eutectic solvent type detergent with a cleaning function is prepared according to different substance amount ratios of the hydrogen bond donors and the hydrogen bond acceptors. The characteristics of detergency, foaming power and the like of the hydrophobic deep-eutectic solvent type detergent are detected, the ratio of tea polyphenol to tea saponin in a hydrogen bond donor is explored, natural, pollution-free and mild bath oil and massage oil are further prepared, and in the cleaning process, massage can be performed according to skin conditions, so that the utilization effect of active ingredients in the product is improved, and the skin care effect is improved. The development of the novel bath oil provides a new thought for the research of infant care products.

The present invention belongs to the technical field of gas drying, and in particular to a compressed gas drying device. In view of the fast gas circulation rate, the use of an adsorption layer alone will result in poor drying effect of the compressed gas and high water content of the gas. The following scheme is now proposed, including a drying cylinder, a vent seat is provided at the bottom of the drying cylinder, and a top cylinder is provided at the top of the drying cylinder, the top cylinder and the drying cylinder are fixedly connected, an exhaust pipe is fixedly connected to the upper side of the top cylinder, and a filling cylinder is provided on the outside of the top cylinder, and the lower port of the filling cylinder is connected to the inner cavity of the drying cylinder. A compressed gas drying device disclosed in the present invention adopts a method of reciprocatingly adding water-absorbing particles in the drying cylinder, and uses compressed air circulating from bottom to top to drive the movement of the water-absorbing particles. In the process, the contact effect between the compressed air and the water-absorbing particles can be increased, thereby achieving the purpose of drying the compressed gas.

The utility model relates to the technical field of waste recycling of thermal power plants, and particularly discloses a raw material impurity removal device for fly ash production, which comprises a crushing bin, a feeding hole is formed in the top of the crushing bin, crushing rollers are symmetrically arranged in the crushing bin, and a first driving mechanism for driving the crushing rollers to rotate relatively is arranged on the outer side wall of the crushing bin; the iron removal bin communicates with the bottom of the crushing bin, a filter plate is arranged between the iron removal bin and the crushing bin, and a plurality of electromagnetic rods are slidably connected to the side wall of the iron removal bin; the conveying bin communicates with the bottom of the iron removal bin, a conveying roller is rotationally connected into the conveying bin, a second driving mechanism for driving the conveying roller to rotate is arranged on the side wall of the outer side of the conveying bin, a plurality of filtering holes are formed in the bottom of the side, located under the iron removal bin, of the conveying bin, and a notch is formed in the bottom of the other side of the conveying bin; the fly ash screening device can achieve the purpose of removing iron powder impurities in the fly ash screening process, and can prevent scraped iron powder from falling into the conveying bin to affect the quality of subsequent finished fly ash products.

The invention discloses a preparation method of a high-resilience graphene foamed film, which is characterized in that on the basis of traditional hydrazine hydrate foaming, tert-butyl alcohol is introduced as a regulator, so that the problem of non-uniform pore size distribution in a graphene film caused by rapid reduction of hydrazine hydrate is avoided, and the compression resistance and resilience of the whole material are improved by virtue of a fine pore structure. And through subsequent low-temperature thermal reduction, carbonization and graphitization treatment, the conjugated structure of the graphene is further recovered, and the porous membrane skeleton is endowed with high compression resilience performance. The obtained high-resilience foaming film can be used as a base material of materials for phase change heat storage, batteries, capacitors, thermal interfaces and the like, and preparation of a high-mechanical-property composite material is achieved.

The invention relates to the technical field of photovoltaic modules, and discloses an EL detection structure for series welding production of photovoltaic cells. A pressing head; the contact layer covers one side, close to the pressure head, of the electrode block, and the contact layer is made of a flexible conductive material; the welding strip is arranged on the contact layer, and the section of the welding strip is circular; the pressing head moves in the direction close to the electrode block, and the welding strip is pressed between the pressing head and the electrode block; the contact layer is extruded, the part, in contact with the welding strip, of the contact layer deforms, and the contact layer wraps part of the peripheral surface of the welding strip; according to the EL detection structure for series welding production of the photovoltaic cells, the contact layer made of the flexible conductive material is arranged between the electrode block and the pressure head, and when the pressure head presses the welding strip, the contact layer can deform and wrap a part of the peripheral surface of the welding strip, so that the contact area and the contact tightness of the welding strip and the electrode block are greatly increased, and the detection efficiency is improved. And the contact layer is simple and convenient to arrange, and can be widely applied to series welding production of various photovoltaic cells.

The invention discloses a preparation method of a crystalline silicon solar cell. The preparation method comprises the following steps: arranging a function adjusting layer on and / or in a passivation dielectric layer; electrode slurry is printed on the passivation dielectric layer and corresponds to the position of the function adjusting layer; sintering to form a metal electrode; the function adjusting layer comprises at least one of compounds containing specific cations, the compounds containing the specific cations can release the specific cations at the sintering temperature, and the specific cations are cations corresponding to elements involved in the glass network formation. According to the preparation method, minority carrier recombination can be effectively reduced, the passivation effect of the battery is improved, and the conductivity of the metal electrode is effectively improved.

The invention discloses a solar cell, a photovoltaic module and a semiconductor substrate, and relates to the technical field of photovoltaics, so that a passivation layer has a good passivation effect on the semiconductor substrate. Meanwhile, the contact performance of the doped semiconductor layer and the electrode and the shaping of the electrode are improved, and the conversion efficiency of the solar cell is improved. The solar cell comprises a semiconductor substrate and a passivation layer. The semiconductor substrate has a first surface and a second surface opposite to each other. At least one of the first surface and the second surface is a target surface. The passivation layer is disposed on the target surface. And one side of the passivation layer away from the semiconductor substrate is provided with a plurality of tower footing-like texture structures which are recessed towards the passivation layer. Wherein each tower footing-like texture structure is defined by a polygon-like bottom surface and side surfaces. In the same tower footing-like texture structure, at least one corner of the polygon-like bottom surface is provided with a plurality of protrusions climbing in the extension direction of the side ridge, and the protrusions on the same corner are provided with fluctuating shapes extending in the direction parallel to the polygon-like bottom surface.

The utility model discloses a waste gas oxidation treatment device which is characterized in that a gas inlet pipe is arranged on one side of a combustion box, a first connecting pipe is arranged on the other side of the combustion box, the other end of the first connecting pipe is connected with a catalysis box, a motor box is arranged on the upper end face of the catalysis box, and a motor is arranged in the motor box. An output shaft of a motor of the waste gas oxidation treatment device and a first catalyst plate form an elastic clamping limiting structure through an elastic limiting block and a fixing plate, and the first catalyst plate forms a rotating structure in a catalytic box through the output shaft under the action of the motor, so that the contact effect of the first catalyst plate and waste gas is improved through the motor; a baffle plate of the device and a second connecting pipe form a vertical lifting structure through a telescopic arm under the action of an electric push rod, so that the oxidized gas quantitatively enters a cooling box to be cooled through the lifted baffle plate; and the gas is prevented from continuously entering the cooling box to reduce the cooling efficiency.

The invention discloses an automatic transportation device based on an AGV, and relates to the technical field of transportation devices. The AGV transportation device comprises an AGV transportation device body, a multi-axis mechanical arm module is arranged on the rear side of the top of the AGV transportation device body, a bearing device is arranged on the front side of the top of the AGV transportation device body and comprises a bearing frame, the bearing frame is fixed to the top of the AGV transportation device body, a through opening is formed in the front side of the bearing frame, and the bearing frame is fixed to the top of the AGV transportation device body. And a plurality of containing openings are formed in the two sides of the inner wall of the through opening of the bearing frame, a plurality of bearing frames are fixed in the bearing frame, and a double-shaft motor is fixed to the bottom of the bearing frame. According to the photovoltaic panel transportation device, through the arrangement of the bearing device, the photovoltaic panel is clamped and fixed to the bearing frame through the two rubber belts, so that the problems that the photovoltaic panel is displaced due to external impact in the transportation process and the photovoltaic panel is prone to slipping off are solved, and then the transportation stability of the photovoltaic panel is improved.

The invention discloses a pesticide microcapsule and its application, belonging to the technical field of pesticides. The pesticide microcapsule is prepared by the following method: adding the pesticide active ingredient to ethyl acetate, and then adding polylactic acid, stirring evenly, and obtaining an organic phase; the pesticide active ingredient is composed of a bifenthrin-thiamethoxam complex and piperine in a mass ratio of 1: (1-3); polyvinyl alcohol is dissolved in water to obtain an aqueous phase; under ice-water bath conditions, the organic phase is added dropwise to the aqueous phase, and stirred at the same time to form an emulsion; the emulsion is stirred and evaporated, centrifuged, washed, and dried to obtain a pesticide microcapsule. The present invention prepares pesticide microcapsules by compounding bifenthrin, clothianidin and piperine, effectively avoiding the drug resistance of pests caused by the action of a single agent, and piperine not only directly produces a toxic effect on pests, but also can enhance the insecticidal effect of bifenthrin and clothianidin, and achieves a synergistic effect of 1+1>2.

The invention discloses a multi-position operating table for urinary surgery, and relates to the field of operating tables, the multi-position operating table comprises a stand column, a control seat is arranged above the stand column, and an inclination control mechanism is arranged at the top of the stand column; the main supporting part comprises a supporting plate, a back plate, a first side plate, a second side plate and an adjusting mechanism; the head supporting part comprises a head bracket and a movable frame, a first rotating mechanism for driving the head supporting part to rotate is installed on the back plate, supporting plates which are symmetrically distributed are arranged at the top of the head bracket, and parallel supports are arranged on the inner side of the head bracket; the leg supporting part comprises a control frame and a leg bracket, and a second rotating mechanism for driving the leg supporting part to rotate is mounted on the supporting plate; and the side supporting part comprises a side pad and a movable pad. According to the multi-position operating table for the urinary surgery, auxiliary side-lying position adjustment can be conducted on a patient, the supporting effect on the head and legs of the patient in the side-inclining side-lying state is improved, good supporting is achieved at different operative positions, and the comfort level of the patient after an operation is improved.

The invention discloses a solar cell, a photovoltaic module and a semiconductor substrate, relates to the technical field of photovoltaics, and aims to improve the passivation effect of a passivation layer, improve the contact performance of a doped semiconductor layer and an electrode and improve the shaping of the electrode. The solar cell includes a semiconductor substrate and a passivation layer. The side, away from the semiconductor substrate, of the passivation layer is provided with a first tower footing texture structure and a second tower footing texture structure. The first tower footing texture structure comprises a plurality of first substructures, and the bottom surfaces of the first substructures are recessed into the passivation layer. In the first tower footing texture structure, the first substructure of which the bottom surface is a complete pattern is a target substructure. The second tower footing texture structure includes a plurality of second sub-structures disposed within the first sub-structure, the bottom surfaces of the second sub-structures being recessed into the passivation layer relative to the surface of the first sub-structure. The one-dimensional size of each target substructure is larger than that of each second substructure, and the number of the second substructures arranged on at least one target substructure is larger than or equal to 10.

The invention discloses a preparation process of a poly laminated double-passivation structure of a TOPCon battery and the TOPCon battery, and belongs to the technical field of solar cells, the preparation process of the poly laminated double-passivation structure of the TOPCon battery comprises the following steps: S1, a pretreatment process; s2, preparation of a laminated double-passivation structure: feeding the silicon wafer subjected to the pretreatment process into a furnace tube of a PECVD (Plasma Enhanced Chemical Vapor Deposition) machine, preparing a tunneling oxide layer on the back of the silicon wafer, and preparing the laminated double-passivation structure on the tunneling oxide layer, the laminated double-passivation structure sequentially comprising a buffer layer, a barrier layer and an N-type amorphous silicon layer; the buffer layer is an intrinsic amorphous silicon layer, and the barrier layer is a tunneling oxidation barrier layer. According to the poly laminated double-passivation structure, the controllability of phosphorus doping distribution can be improved, the doping uniformity is further improved, the contact performance can be improved through high phosphorus doping concentration, meanwhile, the N / N high-low junction phenomenon caused by too high phosphorus doping concentration is avoided, the passivation contact performance of a battery piece is improved, and high battery conversion efficiency is obtained.

The invention provides a preparation method of a solar cell and the solar cell, and the method comprises the steps: firstly, providing an initial wafer; processing the initial wafer by adopting a laser process to obtain a substrate layer of which the first surface is provided with a plurality of groove regions and non-groove regions; a first tunneling dielectric layer is formed on the first surface, and the thickness of the first tunneling dielectric layer located in the groove area is larger than that of the first tunneling dielectric layer located in the non-groove area; then, an amorphous silicon layer is formed on the side, away from the substrate layer, of the first tunneling dielectric layer, and the thickness of the amorphous silicon layer located in the groove area is larger than that of the amorphous silicon layer located in the non-groove area; carrying out doping treatment on the amorphous silicon layer to obtain a doped layer; and finally, forming a first electrode on a part of the surface of the groove region. The preparation method of the solar cell can improve the performance of the solar cell.

The utility model relates to the technical field of coating ovens, in particular to a drying device of a coating oven. Comprising a drying oven, a coating material arranged in the drying oven in a penetrating mode, a hot air generation and circulation device installed at the top in the drying oven, a plurality of baffles installed below the hot air generation and circulation device and used for partition heat insulation, and a hot air drying mechanism installed below the hot air generation and circulation device and used for heat source circulation. According to the coating oven drying device, through the design of the multiple sets of air guide assemblies distributed at equal intervals and the combination of a hot air output and recovery circulating system, the hot air utilization efficiency and drying uniformity are remarkably improved, the angle of an air outlet of each air guide assembly is adjustable, and the drying efficiency is improved. The drying requirements of different coating materials can be flexibly met, and the contact effect of hot air and the surfaces of the materials is optimized; due to the gradient temperature control design (separated by baffles) of the three-stage drying area, fine regulation and control of the drying process are achieved, and deformation or quality defects caused by sudden temperature change of materials are avoided.

This invention provides a method for etching contact holes in gallium nitride (GaN) devices. The method includes providing a substrate on which a GaN epitaxial layer and a barrier layer are formed. An interlayer dielectric layer covering the barrier layer is formed on the substrate. A photoresist layer is formed on the interlayer dielectric layer. The photoresist layer is photolithographically opened to expose a portion of the interlayer dielectric layer, defining the contact hole formation area. Inductively coupled plasma etching (ICP-CPE) is used to etch the exposed interlayer dielectric layer to form a groove, such that the thickness of the interlayer dielectric layer at the bottom of the groove is a preset value. High-density plasma etching (HDP-CPE) is used to etch the interlayer dielectric layer at the bottom of the groove, exposing the barrier layer. The groove is then filled with a conductive material. This method yields ohmic contact holes with good morphology and features high selectivity, low damage, and low cost, which is beneficial for ohmic metal filling and improving ohmic contact performance.

The invention discloses a Yao bath powder surfactant and a preparation method thereof. The surfactant aims at improving the medicine effect and user experience of Yao bath powder. The Yao bath powder surfactant is prepared from the following raw materials in parts by weight: 4-12 parts of hawthorn leaves, 3-9 parts of all-grass of common tickclover, 4-10 parts of radix puerariae, 6-12 parts of polygonum cuspidatum, 5-15 parts of acanthopanax, 4-12 parts of mussaenda pubescens, 8-16 parts of chamomile, 5-9 parts of astragalus membranaceus, 4-12 parts of glossy privet fruit, 4-12 parts of semen cuscutae, 6-12 parts of codonopsis pilosula and 8-16 parts of erodium stephanianum willd. The invention also provides a preparation method of the Yao bath powder surfactant, which comprises the following steps: firstly, respectively weighing the raw materials in parts by weight; then, uniformly mixing the raw materials, crushing, and sieving (the mesh number is 80-100 meshes); then carrying out sterilization treatment, preferably adopting an infrared sterilization mode; and finally, packaging the treated powder to obtain the Yao bath powder surfactant. The Yao bath powder surfactant disclosed by the invention takes various natural Chinese herbal medicines as raw materials, and has various effects of invigorating spleen and replenishing qi, nourishing heart and tranquilizing mind, soothing liver and relieving depression and the like. The unique surface active component can enhance the contact effect of the Yao bath powder and the human skin, so that the drug effect absorption is improved, and meanwhile, the user experience is improved. In addition, the surfactant is safe and free of side effects, and is suitable for various people, especially people needing to regulate body functions and improve health conditions.

The utility model discloses a high-pressure spraying device for disinfecting a hog house, and belongs to the field of spraying devices. The high-pressure spraying device for disinfecting the hog house comprises a fixed pipe and an air pump, and further comprises a plurality of communicating rings which are fixed on the fixed pipe at equal intervals; the plurality of air nozzles are arranged on the fixed pipe; the controller is fixed on the air pump; the plurality of spraying heads are circumferentially arranged on the communicating ring at equal intervals; the high-pressure liquid supply assembly is used for supplying liquid to the communicating ring; the air supply pipe is arranged between the air pump and the fixed pipe; according to the utility model, the condition that a worker is in contact with disinfectant for a long time in the hog house to influence the body health of the worker is effectively avoided, and meanwhile, the distribution uniformity of the vaporific disinfectant is effectively improved, so that the comprehensive disinfection efficiency of the hog house is effectively improved.

The present invention belongs to the field of road freight transportation logistics, and provides a road freight transportation logistics box, including a box body, a water tank is arranged at the bottom of the box body, a baffle is connected to the outer wall of the box body, the baffle is fixedly connected to the outer wall of the box body by an elastic telescopic rod, the inner end surface of the box body is vertically slidably connected to a storage rack, the storage rack has a plurality of storage plates in the vertical direction, and a support mechanism for vertically limiting the storage rack is arranged between the storage rack and the inner wall of the box body. In this invention, when the box body is collided while moving forward, the transmission assembly pushes the column rod downward under the push of the baffle, and the column rod pushes the positioning seat through the limiting assembly, and all the positioning seats further clamp and limit the goods, and all the supporting mechanisms shrink, and all the goods and the storage racks are lowered at the same time, so as to improve the stability of the box body.

A cable truss, including upper chord cable, lower chord cable, cable clamp, cable clamp support arm, cable end connecting block; the two ends of the cable clamp support arm are respectively provided with a cable clamp, the cable clamp is a cylindrical structure as a whole, which is composed of upper spiral body, middle spiral body and lower spiral body, the joint of the upper spiral body and the middle spiral body is provided with an upper chord cable through hole, and the joint of the middle spiral body and the lower spiral body is provided with a lower chord cable through hole; a plurality of telescopic locking pin shafts are arranged in the upper spiral body and the lower spiral body in the vertical direction, the middle spiral body is provided with locking pin shaft insertion holes corresponding to the locking pin shafts, and the locking pin shafts are inserted and matched with the locking pin shaft insertion holes. The application solves the design problem of the cable net node, reduces the adverse effect of the unbalanced force between the cable nets on the overall structure, increases the force rationality of the node and the safety of the whole cable net, reduces the processing and manufacturing cost and the construction difficulty, and can be applied to the "sky round place" structure of the "Dream of Red Mansions" drama fantasy garden engineering.

According to the N-type TOPCon battery front grid line silver-aluminum paste and the battery, the surface of the aluminum powder in the silver-aluminum paste is coated with the organic modifier, so that the surface oil absorption rate of the aluminum powder is improved, the interaction among the aluminum powder is reduced, the aluminum powder and an organic carrier in the paste have better compatibility, and the service life of the aluminum powder is prolonged. The dispersing agent can be quickly and uniformly dispersed into organic or slurry, so that the agglomeration and the fineness of the slurry are reduced, and smooth printing on a thin-line-width screen printing plate is ensured; meanwhile, the surface of the aluminum powder is coated with organic matter, surface oxidation of the aluminum powder is reduced, flowing of molten aluminum at a low temperature in the sintering process is facilitated, contact and efficiency are improved, the sintered silicon contact surface and silver-aluminum spikes are tiny and large in number, and therefore the VOC and contact performance of the battery are improved, and the service life of the battery is prolonged. Therefore, the problems of grid breakage and silver-aluminum spikes easily caused by aluminum powder agglomeration in the printing process of the existing N-type TOPCon battery front grid line silver-aluminum paste are solved.

The utility model discloses a toxic Mongolian medicine material drying device which comprises a drying box, the drying box comprises a box body and a box cover, the box cover is fixedly arranged on the box body through bolts, the toxic Mongolian medicine material drying device further comprises a mounting groove, a drying cylinder, a drying mechanism and a stirring mechanism, the mounting groove is formed in the top side wall of the box body, and the drying cylinder is arranged in the drying box; the two ends of the drying cylinder make contact with the box body and the box cover correspondingly, a mounting plate is fixedly arranged on the side wall of the drying cylinder, extends into the mounting groove and is slidably connected with the side wall of the mounting groove, the drying mechanism is arranged in the drying box and used for drying medicinal materials, and the stirring mechanism is arranged in the drying cylinder and used for stirring the medicinal materials. And sealing rings are fixedly arranged on the top wall and the bottom wall of the drying cylinder correspondingly, the two ends of each sealing ring make contact with the drying box correspondingly, and the toxic Mongolian medicine drying device is used for solving the problem that in the prior art, in the toxic Mongolian medicine drying process, the drying efficiency is easily affected due to uneven drying.

A siliconizing carbon / carbon tool for producing a carbon fiber reinforced ceramic-based cylinder material comprises a siliconizing furnace, a protective cover, an outer cooling cylinder, a motor bearing table, a part to be siliconized, a graphite rod, a cooling cylinder mounting nut, a cooling pipe, a graphite rod butt joint block, a driven chain wheel, a transmission chain, a driving motor, a driving chain wheel and a butt joint screw. The inner siliconizing groove is located in the middle, the silicon powder containing grooves are distributed in the side face of the inner siliconizing groove, the inner siliconizing groove and the silicon powder containing grooves are separated through the partition plate, gaseous silicon seepage holes are formed in the surface of the partition plate, and the gaseous silicon seepage holes, the inner siliconizing groove and the silicon powder containing grooves are communicated with one another. The side face of the siliconizing furnace is provided with two sets of graphite rod installation grooves and four sets of cooling cylinder installation screws, the two sets of graphite rod installation grooves are symmetrically arranged, and the cooling cylinder installation screws are located on the two sides of the graphite rod installation grooves.

The utility model provides a probe assembly, a probe card and a detection system, the probe assembly comprises a probe, the probe comprises a heating part and a conductive layer, and the conductive layer wraps the outer surface of the heating part. When a chip CP test is executed by using the probe assembly, the probe is partially inserted into the metal contact of the chip, and then the heating part receives or generates heat, so that the probe is heated to expand, the contact between the probe and the metal contact is improved, the phenomenon of poor contact is avoided, the contact resistance between the probe and the metal contact is reduced, and the chip CP test efficiency is improved. The test result accuracy is improved.

The invention belongs to the technical field of hardware machining, and particularly relates to a production process of a hardware elastic sheet with stable contact performance. The production technology of the hardware elastic piece with the stable contact performance comprises the following steps that S1, raw materials are subjected to casting forming, and an initial sample is obtained; and S2, sequentially carrying out heat treatment and surface treatment on the initial sample, carrying out precision detection, and obtaining a qualified product. The corrosion resistance and the contact performance of the hardware elastic piece are improved through the measures of optimizing material selection, strengthening surface treatment and the like, and after millions of mechanical cycle tests, the hardware elastic piece can still keep excellent contact performance and stable electrical characteristics, so that the reliability of a product is remarkably improved, and the service life of the product is remarkably prolonged.

The present invention belongs to the technical field of sewage treatment, especially to an oxidation-reduction device and method for treating high-concentration toxic and harmful industrial sewage. In view of the poor contact effect between ozone and sewage at the bottom during oxidation, which results in the inability to effectively oxidize pollutants inside the sewage at the bottom, and thus is not conducive to subsequent reduction operations, the following scheme is proposed, including a mounting base, the top of which is fixedly connected to two support frames. The oxidation-reduction device and method for treating high-concentration toxic and harmful industrial sewage disclosed in the present invention have the function of increasing the sewage treatment effect. During the oxidation operation, the device can extract and lift the sewage at the bottom, and discharge it after lifting, so that the sewage at the bottom contacts with the ozone in the rising process, thereby increasing the contact effect between the sewage and the ozone during oxidation, thereby increasing the oxidation effect, and improving the subsequent reduction effect, and increasing the use effect of the device.