3results about How to "Surface performance is stable" patented technology

The present application belongs to the technical field of self-cleaning coating material, and discloses a super-hydrophobic self-cleaning coating material, a preparation method thereof, and a coating based on the same and application. The super-hydrophobic self-cleaning coating material comprises paint phenol, amino silicone oil and mixed solvents. The present application realizes the chemical modification of the paint phenol by the amino silane through the chemical reaction between the groups of the paint phenol and the amino silane. Further, the present application uses ethanol and water as mixed solvents, utilizes the compatibility difference of the paint phenol and the amino silicone oil in the ethanol and water, and assembles the microstructure in the solvent drying and volatilization process during the application process, which is unique and avoids the limitations of the traditional method of constructing microstructure by using nanoparticles. Further, the hydrophobic long chain of the paint phenol and the hydrophobic silicone chain segment of the amino silicone oil are utilized, so as to endow the material surface with excellent low surface energy characteristics.

The utility model discloses a kind of pre-coated film preparation systems, including roll material unwinding device, surface pretreatment device, coating machine and hot air circulation drying tunnel, cooling winding device and the like module, can realize interface adhesion reinforcing layer and surface energy control layer high-precision continuous coating on substrate surface.System can be configured according to single side or double side coating demand film turnover wheel group and multi-path pipeline transport, realize the consistency and uniformity of double side coating.Coating liquid preparation tank can be equipped with vacuum defoaming or ultrasonic mixing device, improve coating liquid uniformity and compactness.Overall system structure modularization, can be flexibly configured, applicable to different thickness BOPET film, ensure that coating adhesion is high, flatness is good, industrialized continuous production is stable and reliable, provide high-performance base material for hardening, electronic protection and insulating material and the like application.

The application provides a metal part prepared by additive manufacturing and a surface composite strengthening method and tool thereof. The method comprises the following steps: S1, preparing a metal part (1) and a plurality of test pieces (2) by additive manufacturing; S2, initially selecting 5-10 groups of laser shock peening and shot peening process parameter combinations to perform laser shock and mechanical shot peening composite strengthening on the test pieces (2); S3, measuring the surface porosity, surface morphology and surface residual stress of the test pieces (2) after the composite strengthening, and screening out optimal process parameters; and S4, taking the metal part (1) and performing laser shock-mechanical shot peening composite strengthening on the metal part (1) according to the optimal process parameters. The application proposes a laser shock-mechanical shot peening composite strengthening method for the metal part prepared by additive manufacturing, which can significantly improve the surface layer performance of the metal part prepared by additive manufacturing; the process is simple to implement, and will not cause excessive deformation to the metal part prepared by additive manufacturing; and the surface after the strengthening is the final surface, and no other treatment is needed.