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9results about How to "Uniform coating thickness" patented technology
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Nickel-silicon-boron nitride abradable sealing coating, application and preparation method of nickel-silicon-boron nitride abradable sealing coating
PendingCN119506761AHigh bonding strengthhigh hardnessMolten spray coatingBlade accessoriesNichromeBoron nitride
The invention discloses a nickel-silicon-boron nitride abradable sealing coating and application and a preparation method thereof, the abradable sealing coating comprises a bottom layer material in direct contact with a base material and a surface layer material located on the surface of the bottom layer material, the bottom layer material is nickel-chromium alloy, and the surface layer material is nickel-silicon-boron nitride. When the coating is prepared, automatic plasma spraying equipment is adopted, firstly, nickel-chromium alloy powder is adopted as a bottom layer material to be sprayed on the surface of a base material, and then nickel-silicon-boron nitride powder is adopted as a surface layer material to be sprayed on the surface of the bottom layer material. The prepared nickel-silicon-boron nitride abradable sealing coating can be applied to low-pressure turbine discs, high-pressure turbine guiders and sealing seats of aero-engines and gas turbines. According to the method, a traditional manual flame spraying operation mode is replaced, the safety is improved, the material utilization rate and the spraying efficiency are improved, the preparation period is shortened, the material cost is reduced, and the structure property, the bonding strength and the thermal shock resistance of the abradable seal coating are improved.
Owner:CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
A surface spraying device for casting machining
This utility model discloses a surface spraying device for casting processing, including a base plate, a vertical plate fixedly connected to the base plate, a lifting mechanism on the vertical plate, an alternating feeding mechanism vertically fixedly connected to the lifting mechanism, and a paint mist collection mechanism opposite to the spraying device at the lower part of the device. This utility model solves the problem of maintaining a stable spraying distance and angle during manual spraying in the prior art by using a lifting mechanism and a second motor to drive the workpiece to rotate, resulting in uniform coating thickness and high spraying stability on the workpiece surface. The alternating feeding mechanism solves the problem of low efficiency in the prior art requiring machine stoppage for feeding, improving production efficiency while reducing labor intensity. The paint mist collection mechanism solves the problem of poor paint mist collection caused by the air intake being far from the workpiece in the prior art, improving paint mist collection efficiency and reducing environmental pollution.
Owner:TIANJIN BEIYING NEW MATERIAL TECH CO LTD
A fertilizer coating device
PendingCN122079709ATumble evenlyAccurate lifting and positioningAgriculture gas emission reductionSolid/semi-solid fertilisersGear driveAgricultural engineering
This invention discloses a fertilizer coating device, belonging to the field of fertilizer coating technology. It includes a fluidizing chamber with a discharge port at the bottom, providing a coating area; a discharge chamber located at the bottom of the fluidizing chamber, with at least a portion of the fluidizing chamber located inside the discharge chamber; and a spraying element rotatably disposed inside the discharge chamber, comprising a conical surface; a first spray groove on the conical surface; and a second spray groove on the radial outer wall of the spraying element. When the conical surface blocks the discharge port, the spraying element sprays gas into the bottom of the fluidizing chamber through the first spray groove and into the side walls of the fluidizing chamber through the second spray groove. This invention utilizes a double-groove spraying element with a circulating airflow path to construct a three-dimensional fluidization field, combined with multi-nozzle atomization spraying at the top, resulting in uniform coating thickness and no missed spraying. The conical surface also functions as a sealing and guiding element. Precise cylinder lifting and positioning, reliable gear transmission, and a combination of rail groove fitting and elastic sealing structure ensure smooth, uninterrupted movement.
Owner:HEBEI SANYUAN JIUQI FERTILIZER CO LTD
Control methods and systems for high-temperature coating furnaces for pyrolytic graphite
PendingCN122083703Areduce defectsoperational securityCarbon compoundsControl devices for furnacesGraphiteHeat treating
This invention discloses a control method and system for a high-temperature coating furnace for pyrolytic graphite, belonging to the field of material preparation and high-temperature heat treatment technology. It solves the problems of poor deposition uniformity, contradiction between deposition efficiency and quality, and poor process repeatability that exist in coating furnace control methods when preparing workpieces. The technical solution includes the following steps: The substrate to be deposited is placed in the furnace chamber of the high-temperature coating furnace for pyrolytic graphite and pretreated; the pretreated substrate is subjected to multi-stage variable temperature and flow rate deposition control to complete the deposition operation. The multi-stage variable temperature and flow rate deposition control includes four sub-stages performed sequentially: preheating and degassing, interface nucleation, stable growth, and final densification; after the deposition operation is completed, the substrate is cooled, and the substrate coated with pyrolytic graphite is removed. This invention is applied to coating furnaces.
Owner:SHANXI ZHONGDIAN NEW ENERGY TECH CO LTD
A photoresist storage device with a filter circulation structure
This utility model discloses a photoresist storage device with a filtration and circulation structure, including a storage tank, a filtration and circulation assembly, a temperature control assembly, and a sealing and protection assembly. The storage tank has a cylindrical sandwich structure, with an inlet at the top and an outlet pipe at the bottom. A sealing cap is provided on the inlet, and a first solenoid valve is provided at the end of the outlet pipe. The filtration and circulation assembly includes a circulation pump, a filter, a circulation pipeline, and a stirring assembly. The circulation pump is a corrosion-resistant diaphragm pump. The filter is connected in series with the circulation pump through the circulation pipeline. One end of the circulation pipeline is connected to the outlet pipe through a second solenoid valve, and the other end extends to the top of the storage tank and is equipped with a spray head. The advantages are: it effectively solves the problems of high risk of impurity contamination, easy component stratification, insufficient temperature control accuracy, and poor sealing and cleaning performance of existing photoresist storage devices.
Owner:JIANGSU SHENGLIYANG SEMICONDUCTOR CO LTD
Microwave plasma chemical vapor deposition equipment and method for improving coating quality
ActiveCN119640243AImprove electromagnetic field distributionUniform coating thicknessElectric discharge tubesChemical vapor deposition coatingMicrowave technologyMechanical engineering
The invention provides microwave plasma chemical vapor deposition equipment and a method for improving coating quality, and belongs to the technical field of microwaves. The deposition equipment comprises a rack, a cavity, a sample table and a lifting driving device, wherein the rack comprises a discharge cavity bottom plate; and the bottom of the cavity is connected with the upper part of the discharge cavity bottom plate to define a discharge cavity. The sample table is arranged in the discharge cavity, a lifting rod is arranged at the bottom of the sample table, a mounting hole is formed in a bottom plate of the discharge cavity, and the lifting rod slidably penetrates through the mounting hole. The lifting driving device is connected with the bottom of the lifting rod and used for driving the lifting rod to drive the sample table to move up and down. According to the method, the deposition equipment is used, the distribution condition of an electromagnetic field can be improved by moving the sample table up and down by a certain distance, the plasma balls are flatter, the coating thickness can be more uniform, and the coating quality is improved.
Owner:CHENGDU WATERSINE ELECTRONIC TECH CO LTD
Street lamp mounting column line annular spraying equipment
ActiveCN222586945UGuarantee the quality of sprayingUniform coating thicknessStructural engineeringMechanical engineering
Owner:JIANGSU PEIZE MASCH TECH CO LTD
Film coating device for polyester fabric production
ActiveCN119549359AUniform coating thicknessGuarantee molding qualityLiquid surface applicatorsHollow article cleaningPolyesterPolymer science
The invention relates to the technical field of cloth processing, and particularly discloses a polyester cloth production coating device which comprises a cloth conveyor, a storage pool, an impurity removal conveyor arranged in the storage pool, a scraper assembly and an impurity storage bent plate. The storage tank comprises a front inner wall, a rear inner wall and two side inner walls. The impurity removing conveyor comprises two roll shafts and an annular conveying belt. The horizontal conveying direction of the annular conveying belt is parallel to the conveying direction of the cloth. The scraper assembly comprises a scraper rotationally installed on the annular conveying belt, and the scraper is used for synchronously rotating under driving of the annular conveying belt so as to scrape impurities on the front inner wall, the rear inner wall and the side inner walls. The impurity storage bent plate is in a concave arc-shaped plate shape and is used for scraping impurities attached to the scraping plate. According to the film coating device for polyester fabric production, dry coating and other impurities on the inner wall of the material storage pool can be scraped off, and the impurities in the material storage pool can be filtered, so that the film coating thickness of the fabric is uniform, and the forming quality of the fabric is guaranteed.
Owner:GUANGDONG YITONG NEW MATERIAL TECHNOLOGY CO LTD
A paint spraying device with a settling tank
The utility model discloses a paint spraying device with sedimentation tank, including oil paint pool and sedimentation tank, and oil paint pool is assembled with agitator through positioning support, and the communication has feed pipe and back material pipe between magnetic drive pump and oil paint pool, and magnetic drive pump is provided with filter, and filter is communicated with paint supply pipeline no.
Owner:JIANGSU REVZONE RAIL TRANSPORTATION EQUIP CO LTD +1