3results about How to "Maintain gloss" patented technology

The application discloses a high-glossiness composite fabric production method based on double-silk wrapping, which wraps two groups of polyamide filaments or light polyester filaments on the outside of core yarn in opposite twisting directions, so that the glossiness of the obtained yarn is improved; more importantly, the opposite wrapping mode helps to keep the glossiness of the yarn at different angles basically consistent, thereby making the obtained fabric present good glossiness at different viewing angles. Meanwhile, the application spins the yarn by wrapping the core yarn with polyamide filaments or light polyester filaments, so that the fabric made of the yarn has higher strength and is not easy to wrinkle, guarantees the appearance flatness and glossiness of the fabric after washing, can bear greater calendering temperature and calendering pressure, and greatly improves the glossiness of the fabric. In addition, the fabric production method adopted by the application can obtain natural plant fiber composite fabric, is environment-friendly, and the fabric production method is simple in process and easy to implement in industrialization.

This utility model relates to a surface deburring device for pump body casting, belonging to the field of pump body casting and grinding technology. It mainly solves the problem of time-consuming removal of dirt and oxide scale, and proposes the following technical solution: It includes a fixed frame, with a cylinder fixedly connected to the back of the fixed frame. A concave connecting plate is fixedly connected to the output end of the cylinder, and a support plate is fixedly connected to the bottom of the concave connecting plate. A deburring mechanism is rotatably connected to one side of the support plate via a bearing, and a servo motor is fixedly connected to the other side of the support plate. This utility model, by positioning the deburring mechanism inside the cleaning tank, allows the pump body to be immersed in the metal cleaning liquid inside the tank. This design enables the cleaning of dirt and oxide scale from the pump body surface, preventing the time-consuming problem of abrasive particles in removing dirt and oxide scale, further improving the efficiency of pump body deburring, and ensuring the polishing gloss.

This invention provides a carboxyl-terminated modified polyamide toughening agent, its preparation method, and its application. The carboxyl-terminated modified polyamide toughening agent comprises the following components in parts by weight: 55-70 parts of dimer acid, 5-12 parts of aliphatic diamine, 5-15 parts of aromatic dicarboxylic acid, 2-8 parts of modified monomer, 0.1-0.5 parts of catalyst, and 0.2-1 parts of antioxidant. The carboxyl-terminated modified polyamide toughening agent obtained by this invention, when applied to powder coatings, exhibits good flexibility and impact strength, achieving a balance between flexibility and rigidity; it has good boiling water resistance, without defects such as blistering, peeling, discoloration, or loss of gloss; and it has good solvent resistance, resulting in a high gloss retention rate for the coating.