3results about How to "Reduce surface friction coefficient" patented technology

The utility model discloses a kind of scratch-resistant electromagnetic shielding film, it is related to electromagnetic shielding film technical field, including the substrate support layer with the thickness of 50-100 μm, the top of the substrate support layer is provided with conductive adhesive layer, the top of the conductive adhesive layer is provided with electromagnetic shielding layer, the top of the electromagnetic shielding layer is provided with elastic buffer transition layer, the top of the elastic buffer transition layer is provided with composite reinforcing layer, the top of the composite reinforcing layer is provided with wear-resistant protective layer, the top of the wear-resistant protective layer is provided with anti-fingerprint layer.The utility model realizes the overall optimization of surface performance while guaranteeing electromagnetic shielding performance by the synergistic effect of wear-resistant protective layer and anti-fingerprint layer, wear-resistant protective layer can directly resist scratch, rubbing and other mechanical damage in daily use, and the polytetrafluoroethylene micro powder of self-lubricating layer reduces the risk of scratch when external force acts by reducing surface friction coefficient, and the two form high-efficiency scratch-resistant protective system.

The application discloses an inorganic copolymer anticorrosive paint and a preparation method thereof, and relates to the technical field of paints. The inorganic copolymer anticorrosive paint comprises the following raw materials in parts by weight: 20-30 parts of silica sol, 8-15 parts of sodium hydroxide, 30-45 parts of metakaolin, 8-20 parts of quartz sand, 15-25 parts of water, 0.3-2 parts of sodium polyacrylate, 0.2-3 parts of polydimethylsiloxane emulsion, 5-12 parts of modified nanometer titanium dioxide, 6-10 parts of modified epoxy resin, 10-25 parts of hydroxyethyl methacrylate, 5-10 parts of zinc phosphate, 3-8 parts of aluminum tripolyphosphate and 2-6 parts of red iron oxide. The inorganic copolymer anticorrosive paint has scientific raw material proportioning, and the anticorrosive performance is enhanced through the modified nanometer titanium dioxide and the epoxy resin. In the preparation, step-by-step feeding and ultrasonic dispersion are adopted to ensure that the materials are uniform, and vacuum degassing and nitrogen protection are adopted to improve the stability. The silica sol, the zinc phosphate and other components have a synergistic effect, a dense coating is formed, the anticorrosive performance is high, the construction performance is good, and the inorganic copolymer anticorrosive paint is suitable for various scenes.

The invention relates to the technical field of railway wagons, in particular to a shaft end power generation device contact structure and a preparation method thereof.The shaft end power generation device contact structure comprises a macromolecule wear-resisting contact, the end face of the macromolecule wear-resisting contact is a plane, a guide rod is connected to the lower portion of the macromolecule wear-resisting contact, and a spring is connected to the lower portion of the guide rod; and the spring and the lower part of the guide rod are sleeved in the U-shaped rod. The structure of the contact is optimized, the wear resistance of the contact is enhanced, the friction area is increased, the stress condition of the contact is improved, and the reliability of the contact is greatly improved.