2results about How to "Good self-leveling" patented technology

This invention belongs to the field of micro-coating protection and discloses an organosilicon aerosol coating for waterproofing precision instruments and its preparation method. The organosilicon aerosol coating comprises, by weight, 4-6 parts of fluorinated organosilicon, 2-3 parts of organosilicon-acrylate resin, 30-40 parts of a first solvent, 20-30 parts of a second solvent, 1-1.5 parts of a release agent, 0.5-1 parts of a leveling agent, and a certain amount of propellant. This invention uses a first solvent and a second solvent with different volatility properties to improve the self-leveling and film-forming quality of the microfilm after spraying, reducing surface micropore defects caused by excessive evaporation and forming a good waterproof layer. Through the synergistic effect of fluorinated organosilicon and organosilicon-acrylate resin as film-forming materials, the waterproof coating formed with the release agent and leveling agent possesses both long-lasting waterproofing and peelability. When used for the protection of precision instruments, the coating can be peeled off after a certain protection period without leaving residual pollution on the instrument surface.

The invention discloses a high-strength machine mahjong and a manufacturing method thereof, and mainly relates to the technical field of mahjong machines. The machine mahjong comprises a mahjong shell, a magnet is arranged in the mahjong shell, filler is arranged between the magnet and the inner wall of the mahjong shell, a font groove is formed in the front face of the mahjong shell, and fonts are poured in the font groove. According to the invention, a paint process for coloring the mahjong font patterns is changed into a pouring process, so that the mechanical strength, old resistance, dirt resistance, corrosion resistance and other index performances of the mahjong font patterns are greatly improved.