3results about How to "Improve damping effect" patented technology

The invention relates to the technical field of damping materials, in particular to a core-shell structure foaming agent with ammonium bicarbonate coated with nano-silica and a water-based damping coating prepared from the core-shell structure foaming agent. The foaming agent with the core-shell structure is prepared from the following raw materials in parts by weight: 8-10 parts of nano silicon dioxide, 2-5 parts of ammonium bicarbonate, 1-3 parts of diatomite, 1-2 parts of a coupling agent, 0.5-1 part of polyvinylpyrrolidone, 0.5-1 part of epoxy chloropropane and 7-12 parts of absolute ethyl alcohol. The foaming agent with the core-shell structure realizes controllable thermal decomposition through a synergistic effect of chemical bonding and physical adsorption, and the water-based damping paint prepared by utilizing the foaming agent effectively avoids the defects of bubbles, pinholes or cracks and the like caused by concentrated release of gas in a film forming process of a coating due to a controllable and stable gas release mechanism; the high-quality coating which is smooth and compact in surface, free of bubble marks and excellent in damping vibration attenuation effect is obtained, and it is hopeful to achieve the same or better vibration attenuation effect by reducing the overall using amount of materials.

This invention relates to the field of electro-hydraulic actuator technology, specifically a high-precision anti-glare actuator, comprising an actuator cylinder, an actuator piston, a drive cylinder, a drive piston, a coil, a GMM rod, a preload cylinder, a bracket, a cold oil tank, an inlet valve, an outlet valve, and an oil pump. The preload cylinder is located below the drive cylinder and includes a limiting chamber and a buffer chamber from top to bottom. The bracket is located inside the buffer chamber, with its upper end face abutting against the lower end face of the GMM rod. The cold oil tank is located outside the preload cylinder. The inlet valve and outlet valve are located in the buffer chamber and the limiting chamber, respectively. The oil pump is installed between the inlet valve and the cold oil tank. This invention achieves rapid heat dissipation of the GMM rod by accelerating oil exchange during the GMM rod retraction process and changing the preload position and filtering oil impurities through oil exchange, thereby improving the actuator's precision and ensuring the long-term stability of the GMM rod, thus enhancing the actuator's anti-glare performance.