3results about How to "Machinable" patented technology

This application discloses a privacy film and a film-forming device, belonging to the field of display technology. The privacy film includes: a first transparent layer, a second transparent layer, and multiple light-shielding strips; the first and second transparent layers are stacked, and multiple carrier cavities are formed between the first and second transparent layers, with each light-shielding strip corresponding to one of the carrier cavities, and the light-shielding strips located within their respective carrier cavities; wherein, the modulus of the light-shielding strips is greater than the modulus of the first transparent layer, and the modulus of the light-shielding strips is greater than the modulus of the second transparent layer. This application allows for a thinner privacy film, which is beneficial for the miniaturization of display devices.

This invention discloses a method for preparing a composite vibration damper consisting of a high-pressure-bearing sintered metal fiber body and a metal plate, belonging to the technical field of composite vibration dampers. By controlling factors such as the diameter, porosity, and thickness of stainless steel fibers, and through high-temperature sintering and pressure forming, this invention obtains a stable, high-compressive-strength stainless steel felt sintered body (SFB). The metal plate is then combined with the SFB to fully utilize the vibration damping energy of the SFB, resulting in a high-pressure-bearing metal fiber vibration damper. This vibration damper exhibits high compressive strength and excellent vibration damping performance, and also possesses characteristics such as corrosion resistance, high-temperature resistance, machinability, and strong environmental adaptability.

This invention belongs to the technical field of steel-bonded cemented carbide, specifically relating to a hot-work steel-bonded cemented carbide material and its preparation method. The hot-work steel-bonded cemented carbide provided by this invention has tungsten carbide as its hard phase, with a weight percentage of 25-45 wt%. The remainder is a steel matrix binder phase, with the following components and weight percentages: chromium (2.0-5.5) wt%, molybdenum (3.0-6.0) wt%, nickel (0.8-2.8) wt%, carbon (0.3-0.6) wt%, and the balance being iron. The preparation method and steps include batching and ball milling, slurry treatment, pressing, sintering, forging and annealing, machining, and heat treatment. The hot-work steel-bonded cemented carbide obtained by this invention possesses excellent thermal stability, hardness, and wear resistance, and can replace traditional hot-work die materials, thus improving service life.