4results about How to "Improve coating yield" patented technology

The utility model belongs to the technical field of coating processing equipment, and particularly relates to a modularized flexible film composite coating machine which comprises a vacuum evaporation module, a conveying module and an organic vapor deposition module, the vacuum evaporation module is arranged below the conveying module, the vacuum evaporation module is in sealed threaded connection with the bottom of the conveying module, and the organic vapor deposition module is arranged below the conveying module. The organic vapor deposition module is arranged above the conveying module, and the organic vapor deposition module is in sealed threaded connection with the upper part of the conveying module. Compared with the prior art, the device adopts the combination of organic vapor deposition and vacuum evaporation coating processes for coating, adopts modular assembly, is convenient to disassemble, assemble and maintain, and can adjust the tensile force of the flexible film in real time and observe the coating effect so as to timely adjust and improve the coating yield.

The utility model discloses a coating device which comprises a coating box body, supporting pieces, a carrier plate and a heat exchange assembly, a coating cavity is defined by the coating box body, the supporting pieces are arranged on two oppositely-arranged side walls of the coating cavity, the two oppositely-arranged sides of the carrier plate abut against the two supporting pieces respectively, the carrier plate is used for supporting a substrate, and the heat exchange assembly is used for heat exchange of the substrate. The heat exchange assembly is arranged in the coating chamber, the heat exchange assembly is arranged on at least one side of the carrier plate, the heat exchange assembly and the carrier plate are arranged in a spaced mode, and the heat exchange assembly is used for conducting radiation heat exchange with the substrate. According to the coating device, the temperature of the substrate can be rapidly reduced, the time for reducing the temperature of the substrate to the room temperature is shortened, and the coating yield is improved.

This application discloses a radio frequency magnetron sputtering device with controllable cavity wall potential and its potential control method. The magnetron sputtering device includes a sputtering source cavity, a target material, a working cavity, a shield, and an active potential controller. The sputtering source cavity and the working cavity are sealed together, forming a process cavity. The target material is connected to a radio frequency power supply, which can output a periodically changing radio frequency electric field. Each cycle of the radio frequency electric field includes a positive half-cycle and a negative half-cycle. The shield is made of conductive material and is used to define the deposition area of ​​sputtered particles. The active potential controller is electrically connected to the shield and is used to apply a potential to the shield so that the shield can repel positively charged particles at least during the positive half-cycle, thereby suppressing particle adhesion on the shield. By using a constant positive potential or a periodic variable potential mode synchronized with the radio frequency, the negative potential during the negative half-cycle is strictly controlled below the particle re-sputtering threshold, thus fundamentally preventing the particle contamination problem caused by thin film deposition and peeling on the shield surface.

The present application provides a kind of lithium ion battery electrode coating with flow uniformity gasket and its coating method, to solve the problem of poor consistency of coating caused by uneven distribution of slurry flow rate in traditional slot coating process.The core structure is flow uniformity gasket, and the flow uniformity gasket body wall surface is symmetrically provided with integrated flow uniformity structure, the flow uniformity structure includes the wall surface that is narrowed upstream and expanded downstream along the slurry incoming flow direction.Through the above structure, the flow uniformity gasket can effectively suppress the Poiseuille effect of "low on both sides, high in the middle" in traditional slot coating, and realize the uniform distribution of slurry flow rate at slot outlet.The slot coating method using the flow uniformity gasket can ensure the uniformity and consistency of film coating thickness while avoiding the increase of additional pipeline load;Its efficient, convenient, low energy consumption and low cost characteristics can significantly improve the coating yield and economic benefit.