5results about How to "Improve friction performance" patented technology

The invention discloses an efficient anti-wear and anti-friction additive and a preparation method thereof, and relates to the technical field of lubricating materials. The additive comprises at least one metal composite compound, and metal elements in the metal composite compound comprise one or a combination of at least two of Ni, Cu, Zn, Ti or Ce; by controlling the mass ratio of each element, the synergistic interaction is realized; the preparation method comprises the following steps: mixing a metal composite compound, then carrying out ball milling treatment, and then carrying out calcination and surface modification to prepare the additive, the additive provided by the invention can form a high-strength protective film on a friction interface through the synergistic effect of a specific metal composite compound, so that the anti-wear and anti-friction performance and high-temperature stability of the lubricating oil are remarkably improved.

The application discloses an artificial blood vessel joint and a preparation method thereof. The blood vessel joint adopts a carbon-based material as a base body, a double-layer composite coating with PyC and Ag-doped DLC and an Ag-doped DLC coating are prepared on the inner wall and the outer wall respectively, and the blood vessel joint is obtained; the inner wall of the blood vessel joint is smooth and compact, which is beneficial to blood circulation; the outer wall is a porous Ag-doped DLC coating, which is beneficial to biological fixation with tissues; the Ag-doped DLC coating endows the blood vessel joint with good antibacterial property, reduces inflammation, and can improve the adverse reaction of the human body caused by friction and powder loss after the blood vessel joint is implanted into the human body.

This invention belongs to the field of clutch manufacturing technology and aims to solve the problem that the friction performance of existing heavy-duty clutches gradually decreases over time, thus affecting their transmission smoothness and shortening their service life. To this end, this invention provides a method for preparing a surface-textured clutch plate. The method includes: preparing a mixed powder comprising metal matrix powder, solid lubricant powder, reinforcing phase powder, and a forming agent, and mixing them uniformly in a predetermined ratio; loading the mixed powder into a mold for cold pressing to obtain a green blank with a predetermined geometric structure; sintering the green blank under a protective atmosphere with stepped heating; processing microtextures on the friction surface of the sintered part using an ultrasonic impact device; and cleaning the surface of the ultrasonically impacted workpiece. This invention can optimize the friction performance of the clutch, enabling it to maintain high friction characteristics for a long time and preventing a rapid reduction in the clutch's service life.

The utility model relates to a kind of friction damping spherical support, including upper support plate and lower support plate, and the spherical support is detachably installed between the lower surface of upper support plate and the upper surface of lower support plate by bolt, and the spherical support includes spherical surface plate and spherical crown lining plate;Spherical crown lining plate top is equipped with arc-shaped groove, and the lower end of spherical surface plate is equipped with spherical convex surface compatible with arc-shaped groove, and spherical crown lining plate is slidably matched with the spherical convex surface of spherical surface plate by arc-shaped groove;The upper end surface of spherical surface plate is fixedly connected with upper slide plate, and the lower end surface of spherical crown lining plate is fixedly connected with lower slide plate, and upper slide plate and lower slide plate are all made of polyfluoroethylene wear-resistant material;Between upper support plate and lower support plate, damping component distributed around the circumference of spherical crown lining plate is also installed.The utility model optimizes friction pair structure and material, simplifies damping component, realizes stable damping, and prolongs service life.

The application discloses a water-based wheel-rail friction modifier and a preparation method thereof, and raw materials include bentonite, talcum powder, molybdenum disulfide, modified zirconium phosphate, copper-based nanomaterial, silicon dioxide, magnetic iron oxide, sodium silicate, metal passivator, water-based epoxy resin, acrylic emulsion, water-based polyurethane, polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer, ethylene glycol, modified wheat straw powder, sodium dodecyl sulfate, antioxidant, AMP-95, defoaming agent and deionized water. After the above ingredients are weighed, they are sequentially stirred and mixed, and then are ground and homogenized to obtain a finished product. The application solves the problems of the existing water-based tread modifier, such as large friction coefficient fluctuation, easy failure at high temperature and metal corrosion of the water-based system.