16results about How to "Reduce thickness difference" patented technology

The utility model belongs to the technical field of metal gasket production, and particularly relates to a gold plating device for metal gasket production, which comprises a bottom plate, the top of the bottom plate is fixedly connected with a gold plating box; the side wall of the gold plating box is fixedly connected with a side plate; the side wall of the side plate is fixedly connected with a groove plate; the top of the groove plate is fixedly connected with a first motor; a lead screw is rotationally connected into the groove plate. The lead screw is connected with the output end of the first motor. The middle part of the screw rod is in threaded connection with a T-shaped plate; the side wall of the T-shaped plate is fixedly connected with a supporting plate. The top of the supporting plate is fixedly connected with a second motor. Through the structure, the metal gasket can be effectively and fully contacted with an electroplating solution, so that each part of the gasket can be more uniformly contacted with the electroplating solution, the thickness difference of a plating layer caused by non-uniform concentration distribution of metal ions in the solution is reduced, meanwhile, convection of the electroplating solution can be promoted through rotation of the placing basket, and the electroplating effect is improved. Transmission of metal ions to the surface of the gasket is accelerated, and the electroplating rate is increased.

The invention relates to a device for copper strip shape correction and edge burr removal. The device comprises a rack, and the rack is provided with a machining space for copper strip machining and a machining inlet and a machining outlet which are communicated with and communicated with the machining space; a plurality of lower smooth rollers and lower smooth roller shaft seats matched with the lower smooth rollers are arranged at the bottom of the processing space, and upper smooth rollers and upper smooth roller shaft seats matched with the upper smooth rollers are arranged between the adjacent lower smooth rollers; a lifting device is arranged at the top of the processing space, is connected with an upper roller box plate and is used for driving the glazing roller shaft seat to lift, so that the glazing roller has a first position which is simultaneously tangent to the adjacent lower glazing roller and a second position which is simultaneously separated from the adjacent lower glazing roller; the upper roller box plate is further provided with a vacuum scrap suction device, the vacuum scrap suction device is provided with a suction inlet, and the suction inlet faces the tangent point of the upper smooth roller and the lower smooth roller when the upper smooth roller is located at the first position. According to the device, cleaning can be conducted in time after edge thorns are removed, the original thickness of the copper strip is kept, and the shape righting effect is improved.

The invention relates to the field of transformer production, in particular to a high-frequency transformer middle section automatic assembly line which comprises a magnetic core mounting assembly, a transformer rubber coating assembly, a characteristic testing assembly, a transformer dispensing assembly, a laser marking assembly and a discharging disc which are sequentially arranged. The two groups of magnetic cores are assembled on the transformer by the magnetic core mounting assembly; the transformer encapsulation assembly is used for winding and fixing two groups of magnetic cores on the transformer through adhesive tapes; the characteristic test assembly is used for carrying out characteristic test on the rubber-coated transformer; the transformer dispensing assembly is used for dispensing the top of the tested transformer; the laser marking assembly is used for marking the transformer subjected to glue dispensing; the discharging disc collects the marked transformer, and the production efficiency is improved through the full-process automatic design of magnetic core installation, rubber coating, testing, dispensing, marking and discharging.

The application provides a baffle assembly and a chemical vapor deposition system. The baffle assembly comprises: at least two baffle groups, which are respectively arranged in at least two temperature different filling areas of a vertical furnace; each baffle group comprises at least one baffle; the thicknesses of baffles in different baffle groups are different; the higher the temperature of the filling area where the baffle group is located, the smaller the thickness of the baffle in the baffle group. The application can make the sum of the thicknesses of the baffles and the films on the baffles in different baffle groups closer in the same reaction time, which is beneficial to reducing the thickness difference of the baffles in different baffle groups, and then the thickness monitoring step of the baffles can be synchronized, the replacement time and the cleaning time of different filling areas can be synchronized, and the efficiency of the thickness monitoring, replacement and cleaning of the baffles is improved. The edge part of the application is thinner than the middle part, the application has a convex structure, the adhesion of the baffle and the deposit can be reduced, and the baffle is convenient to take out.

The utility model discloses a rolling device and battery manufacturing equipment, the rolling device is used for rolling a pole piece, and the pole piece comprises a film coating area and a pole lug. The rolling device comprises a pair of rollers. A plurality of annular grooves which are distributed at intervals in the axial direction of each roller are formed in the roller surface of each roller, each annular groove is formed around the central axis of the corresponding roller, and a rolling section is formed between every two adjacent annular grooves. Wherein the diameter of the rolling section is gradually reduced from the middle of the rolling section to the two ends of the rolling section in the axial direction of the roller. The rolling device can improve the quality of the pole piece and improve the reliability of the battery monomer.

The utility model discloses a metal sputtering device for manufacturing drain-source electrodes of a silicon carbide-based chip, which comprises a base, the upper surface of the base is fixedly connected with a vacuum chamber, the upper surface of the vacuum chamber is fixedly connected with a radio-frequency power supply, the upper surface of the vacuum chamber is fixedly communicated with a water-cooling sleeve, and the water-cooling sleeve is fixedly communicated with the base. The bottom surface of the water cooling sleeve is fixedly connected with a back plate, the bottom surface of the back plate is fixedly connected with a target material, the bottom surface of the vacuum chamber is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a rotating shaft, the outer surface of the rotating shaft is fixedly connected with a bearing seat, and the upper surface of the rotating shaft is fixedly connected with a clamping device. According to the device, the thickness difference of a deposited film can be reduced and the thickness uniformity of the film can be improved by rotating the substrate, and when the magnetron sputtering gun is fixed, the metal film can be more uniformly deposited on the surface of the substrate by the rotating substrate, so that defects, inclusions and non-uniformity in the film can be reduced.

The double-cavity multi-element alloy reaction tank comprises rotary shaft one and rotary shaft two arranged at the left and right ends of the tank body respectively, a transmission gear arranged on the rotary shaft two and matched with a driving unit, and a cover body covering the opening of the tank cavity of the tank body. A central flow channel extending in the vertical direction and transverse to the length direction of the tank cavity is formed at the central position of the width direction of the tank cavity. Hot air sent into the central flow channel can heat the material in the tank cavity at least at the central position of the width direction of the tank cavity. The present application can change the heat conduction path of a large reaction tank with a large width, can realize the purpose of simultaneously heating the material in the tank cavity at multiple positions in the width direction, can improve the heating speed, and can improve the consistency of the temperature in the tank body.

The invention belongs to the technical field of blade investment casting, and relates to a method for eliminating grain boundary cracks of a large-size directional hollow blade, which is used for casting directional column crystal working blades of gas turbines and the like with the transverse size exceeding 130mm. The method comprises the following steps of: when a wax mold is trimmed, adhering a cylindrical wax stick to a mold core positioning position extending out of a tail edge; the coating property of the enhanced shell slurry is used for increasing the thickness of the shell at the position; when the modules are combined, wax pattern baffles are arranged outside the front and tail edges, so that the heat dissipation speed of the front and tail edges is reduced; and during directional solidification, the standing time of the alloy liquid after casting is prolonged so as to slow down the solidification rate of the initial position of the blade tip, so that cracks at the directional grain boundary caused by overlarge transverse solidification stress are eliminated, and the casting qualification rate of the large-size directional gas turbine working blade is improved.

The invention discloses stainless steel groove pipe surface spraying equipment, and belongs to the field of spraying equipment.The stainless steel groove pipe surface spraying equipment comprises a base, a supporting plate is fixedly installed at the top of the base, the stainless steel groove pipe surface spraying equipment further comprises a clamping assembly, the clamping assembly comprises two sets of round frames arranged above the base, the round frame close to one side of the supporting plate is fixedly installed on the base, and the supporting plate is fixedly installed on the base; the round frame on the side far away from the supporting plate is slidably mounted on the base, round plates are rotatably mounted in the two round frames, a stainless steel groove pipe body is arranged between the two round plates in a contact mode, and telescopic springs are directly and fixedly mounted on the round frame on the side far away from the supporting plate and the top of the base. The stainless steel groove pipe can be properly preheated before being sprayed, the fluidity of the coating on the surface of the stainless steel groove pipe is improved, a solvent in the coating can be rapidly volatilized, the possibility of forming bubbles and pinholes is reduced, and therefore the protection performance and appearance quality of a coating are improved.

The utility model discloses an internal series battery cell and an internal series battery, and relates to the technical field of series batteries. The inner-string battery cell comprises N bare battery cells and N-1 partition plates, and N is greater than or equal to 2; the naked battery cells and the partition plates are sequentially and alternately stacked, the adjacent naked battery cells and partition plates are connected through adhesive layers, and the two adjacent adhesive layers are distributed in a staggered manner. According to the inner-string battery cell, the adhesive layers are arranged between the adjacent naked battery cells and the partition plates for connection, so that the two adjacent naked battery cells are relatively fixed, the naked battery cells are prevented from sliding, the qualification rate of the packaged inner-string battery cell can be improved, and the falling performance can also be improved; meanwhile, the two adjacent adhesive layers are distributed in a staggered manner, and the thickness of only one adhesive layer needs to be calculated in thickness calculation, so that the thickness of the inner-string battery cell is reduced, the energy density is improved, the thickness difference of the inner-string battery cell is reduced, and the flatness is improved.

The utility model provides an electrochromic diaphragm, a color changing device and a terminal product, and belongs to the technical field of electrochromism. The electrochromic membrane comprises an edge part, and the edge part comprises a plurality of corner parts and connecting parts for connecting every two adjacent corner parts; in the first direction, two opposite sides of the edge part are electrically connected with a first bus bar and a second bus bar respectively; a first insulating part is arranged between the conductive layer at the corner part and the first bus bar, and a second insulating part is arranged between the conductive layer at the corner part and the second bus bar; the surfaces of the first bus bar and the second bus bar of the connecting part are provided with protective layers, and the first bus bar and / or the second bus bar of the corner part are / is at least partially exposed. According to the electrochromic membrane provided by the invention, the first bus bar and the second bus bar at the corner part are at least partially exposed, so that the thickness of the corner part is reduced, and the thickness difference between the corner part and other areas of the electrochromic membrane is reduced, so that the uniformity and smoothness of the overall thickness of the electrochromic membrane are improved.

This invention belongs to the field of powder metallurgy component surface strengthening technology, aiming to solve the problem that existing clutch tooth surface strengthening processes struggle to simultaneously achieve geometric accuracy, wear resistance, and process efficiency. This invention provides a method for strengthening the wear resistance of clutch tooth surfaces, comprising: mixing iron-nickel-molybdenum alloy powder, nano-tungsten carbide powder, nano-alumina powder, and lubricant; adding a binder and melting and mixing; then adding the mixture into a mold for injection molding; subsequently performing solvent degreasing and thermal degreasing treatments; followed by pre-sintering treatment; then transferring the pre-sintered part into a chemical vapor deposition reaction chamber, where an intermetallic compound transition layer, a titanium carbide main layer, and a nanocrystalline surface layer are sequentially deposited on the tooth surface; then performing vacuum sintering, liquid phase sintering, and pressurized cooling; finally, subjecting the sintered part to hot isostatic pressing (HIP) strengthening treatment; and finally, grinding the tooth surface. This invention can simultaneously address the three aspects of clutch tooth surface strengthening processes: geometric accuracy, wear resistance, and process efficiency.

The invention discloses a method for improving the compactness of electroplated copper layer on NdFeB substrate, relates to the technical field of surface treatment, when electroplating copper on NdFeB substrate, an additive is added to the copper plating solution, the additive is a mixture of 3-picolinic acid and 3-picolinyl ammonium and pyridine hydrochloride, the mass ratio of the mixture of 3-picolinic acid and 3-picolinyl ammonium to pyridine hydrochloride is between 1:10 and 10:1, wherein the concentration of the mixture of 3-picolinic acid and 3-picolinyl ammonium is 1-20g / L. The additive of the present invention promotes the uniform deposition of metal ions on the surface of the substrate, and can reduce the thickness difference of high and low current zones of NdFeB magnet during electroplating, thereby improving the uniformity of the copper layer thickness distribution, thereby improving the compactness of the electroplated copper layer as a whole, and then improving the corrosion resistance of the copper layer.

The invention relates to the technical field of batteries, and provides a battery cell structure, a battery and electric equipment. The battery cell structure comprises a battery cell and at least one thickness compensation piece, the battery cell comprises a first pole piece, a diaphragm and a second pole piece which are sequentially arranged in a stacked mode, the first pole piece, the diaphragm and the second pole piece are wound to form the battery cell, the battery cell is provided with a straight area and corner areas located at the two opposite ends of the straight area, and the winding starting end of the first pole piece is located in the straight area; a preset distance is formed between the thickness compensation part and the corner area, a cavity is formed, the cavity is located in the straight area, the thickness compensation part is arranged at the winding starting end of the battery cell, and the projection of the thickness compensation part and the projection of the cavity at least partially coincide in the thickness direction of the battery cell. The thickness compensation part can be used for compensating the space of the cavity, so that the thickness of the overlapping region of the battery cell in the formation stage is increased, and the thickness difference between the overlapping region and other regions in the formation stage is reduced. The problem of black spot lithium precipitation can be effectively improved, and the battery performance is further improved.

The utility model relates to an electroplating tool and an electroplating structure, and the electroplating tool comprises an anode assembly which comprises a first anode wire; and the cathode assembly comprises a cathode supporting table, a first avoiding hole is formed in the cathode supporting table, and the first anode wire penetrates through the first avoiding hole and is in clearance fit with the first avoiding hole.

The utility model discloses an automatic coating device for super-hydrophilic paint, relates to the technical field of coating devices, and aims to solve the technical problems of uneven coating, edge accumulation or insufficient center coverage possibly caused by plane cleaning cloth and need of manual repair due to environment or base material difference in the conventional spraying process. A conveying mechanism is arranged in the gun body, a gun handle is arranged on one side of the lower end of the exterior of the gun body, a coating mechanism is arranged on the other side of the lower end of the exterior of the gun body and comprises a shell A, a driving motor is arranged on one side of the interior of the shell A, and the output end of the driving motor is connected with a distance adjusting unit. And the uniform smearing unit is arranged at one end of the distance adjusting unit. The coating is adsorbed and uniformly released through the cleaning cloth with the honeycomb structure, the contact pressure is dispersed, each hole unit independently regulates and controls the release amount so as to reduce the thickness difference, the acute angle edge assists in scraping impurities, the single-time coating uniformity is improved, and the manual secondary repair requirement is reduced.