35results about How to "Reduce vulcanization" patented technology

The invention discloses a conductive ink of ultra-low haze silver nanowire film and a preparation method and an application thereof. The conductive ink is used to produce an ultra-low haze silver nanowire film. The silver nanowires obtained in the preparation method have a diameter of 20 nm and an length-diameter ratio of 1000. The optical ink produced by the conductive ink has an optical transmittance of more than 95% and a haze of less than 0.5%. The conductive ink in the present invention is formed in one time to achieve the photoelectric performance index of the film required for the high-definition screen. Silica sol is added to the conductive ink to tightly fix the silver nanowires on the substrate and form an aging protective layer on the surface thereof. The film has a surface hardness of 3H and is scratch resistant. The film has excellent environmental stability and anti-aging effect. The preparation method of conductive ink is environmentally friendly, non-polluting, and doesnot require expensive equipment such as high temperature and vacuum, and is easy to operate, and is advantageous for large-scale and low-cost promotion.

The present invention discloses a non-precious metal sulfide type supported catalyst. In the catalyst, at least one of molybdenum or tungsten, and at least one of cobalt or nickel are supported on a carrier in a wholly or partially sulfide state; the carrier comprises a carbon material; the mass of at least one of molybdenum or tungsten is 10 to 50% of the total mass of the catalyst, the mass of at least one of cobalt or nickel is 1 to 20% of the total mass of the catalyst, and the mass of the carrier is 1 to 20% of the total mass of the catalyst. The invention also discloses a preparation method and use of the catalyst. Compared with the prior art, the catalyst of the invention has high active component content, more active sites and exposed sites, and active components are uniformly dispersed on the carbon material, and when the catalyst is used for preparing high-heat-stability fuel, the catalyst has high hydrodesulfurization activity and aromatic saturation activity.

The invention discloses a serial-parallel conversion and intelligent charging system for a lead-acid storage battery pack. An intelligent segmental pulse charging technology is provided, the reverse instantaneous discharge function of a storage battery is added, the vulcanization phenomenon of a battery is reduced, the receiving rate of the battery is increased, the charging speed is increased, and the service life of the battery is prolonged. The system consists of a power supply main circuit, a control circuit, a simple keyboard and display circuit, an energy feedback circuit, a battery pack serial-parallel conversion circuit and a temperature measuring circuit, wherein the power supply main circuit consists of a full-bridge inverter circuit consisting of a full-bridge rectifying circuit and an IGBT (Insulated Gate Bipolar Translator), and a full-wave rectifying circuit; a C8051F020 singlechip is taken as the core of the control circuit; the simple keyboard and display circuit can be used for selectively charging on a peak valley; a transformer is taken as the feedback channel of the energy feedback circuit; discharge energy is stored in a filter capacitor. The battery pack serial-parallel conversion circuit consists of a three-pole double-throw switch and a diode, and a series battery pack adapter is used for charging a parallel battery, thereby solving the problem that all batteries cannot be charged due to damage to a single battery in the battery pack. The system is suitable for intelligent charging of electric bicycles in industrial production and civil use.

The invention relates to a preparation method of a high-metal-content hydrogenation catalyst, comprising the steps of depositing an aluminum source modifier to a carrier; mixing a metal, phosphoric acid, an organic complexing agent and deionized water; impregnating the mixture to the carrier on which the aluminum source modifier is deposited; drying and calcining the carrier on which the mixture is impregnated; wherein the metal is made from a main component, Mo in VIB, and an aid component, Ni in VIII, the aluminum source modifier is one, or a composition of any, of aluminum isopropoxide, aluminum chloride and aluminum nitrate, the carrier on which the aluminum source modifier is deposited is 1.3-2.3 ml/g in pore volume and 400-700 m<2>/g in specific surface area, and pores 14-18 nm in diameter accounts for greater than 50%. The preparation method of the high-metal-content hydrogenation catalyst provided herein has significantly improved activity and good pore structure and large specific surface area since metal carrying capacity is increased; the preparation process of the catalyst is simplified, and the preparation cost of high-metal-content hydrogenation catalyst is reduced.

The invention provides a ventilation-cooling method for high-geothermal deeply-buried diversion tunnel construction. The ventilation-cooling method comprises the following steps: I, carrying out health management of people; II, ventilation-cooling; III, cooling blast holes; IV, making ice to cool; and V, cooling measurement equipment. According to the ventilation-cooling method, a ventilation technology and a low-temperature cold water technology are integrated so as to construct in high temperature environment, so that the heatstroke symptoms of constructors in high temperature environment are reduced; the wearing of mechanical parts caused by engine oil temperature increase, viscosity drop and lubrication effect reduction of a construction machine is prevented; pipe burst, oil leakage of a joint and solenoid valve coil burning caused by high temperature are prevented; the accelerated aging of a sealing member is prevented; the emulsion explosive failure in high temperature environment is also prevented and the phenomena of nonel softening and misfire are avoided; the normal use of monitoring equipment in high temperature environment is guaranteed.

The invention relates to a spreading machine, which comprises a machine body, a motor, a driving device, and an actuating mechanism, wherein the driving device is arranged in the machine body; the actuating mechanism arranged on the machine body comprises a glue pulling mechanism, a doubling mechanism, and a spreading mechanism; and the spreading mechanism is arranged between the doubling mechanism and the glue pulling mechanism or the doubling mechanism is arranged between the spreading mechanism and the glue pulling mechanism, the glue pulling mechanism is fixedly connected with the doubling mechanism through two guiding shafts, the spreading mechanism is sleeved on the two guiding shafts through two linear bearings, and a piston rod in a hydraulic actuating mechanism of the glue pulling mechanism is connected with a lower fixed clip knife bracket of the spreading mechanism. The spreading machine changes the prior manual glue-scaling method, and has the advantages of fast spreading speed, high efficiency, high recycling rate, fully-automatic operation, and labor conservation.

The invention relates to a preparation method of a passivated sulfurized hydrocracking catalyst and the hydrocracking catalyst obtained by the method. The method comprises the following steps of: dipping an oxidized hydrocracking catalyst by adopting a solution containing a nitrogen-containing compound and organic alcohol, then drying the oxidized hydrocracking catalyst, and carrying out sulfuration treatment on the dried oxidized hydrocracking catalyst to obtain the passivated sulfurated hydrocracking catalyst. According to the method, the passivation process can be completed while the hydrocracking catalyst is sulfurized, the sulfuration and passivation effects of the catalyst are good, the reaction activity of the catalyst is high, the catalyst does not need to be sulfurized or activated when a hydrocracking device is started, oil can be directly fed for starting, the starting steps are simplified, and the starting time of the hydrocracking device is shortened.

The invention relates to the field of rubber production, and particularly discloses a rubber anti-yellowing accelerant, a preparation method thereof and a rubber product. The rubber anti-yellowing accelerant comprises rubber, white carbon black, a scorch retarder, long-chain primary alkyl zinc dithiophosphate, sulfamic acid and terephthalic acid. The preparation method comprises the following steps: firstly, adding the rubber into an internal mixing chamber of an internal mixer for plastifying and stirring, then adding the remaining raw material components into the internal mixing chamber for mixing with the rubber, and discharging to obtain the rubber yellowing-resistant accelerant. The rubber yellowing-resistant accelerant is applied to rubber products. The rubber yellowing-resistant accelerant has the effects of improving the anti-yellowing performance of the rubber product and prolonging the service life of the rubber product.

The invention relates to an automatic solar repair system and method for a power battery. The system comprises a solar panel arranged on the top of an electric car and a microwave repair controller arranged in the electric car, wherein the output terminal of the solar panel is connected with the input terminal of the microwave repair controller, and the output terminal of the microwave repair controller is connected with the input terminal of the power battery located in the electric car. The method is to use the solar panel for continuous microwave charging of the power battery. According to the invention, the solar panel is used for continuous microwave charging of the power battery to improve the sulfuration phenomenon of the pole plates of the power battery and to prevent ageing of the pole plates caused by over discharge of the power battery. The microwave microcurrent repairing charging of the system and method mainly acts on ageing of the battery, decreases the ageing speed of the battery and enables the service life of the battery to be increased by 30%; meanwhile, the charging frequency of the battery can be decreased, and the consumption of electric energy is reduced; so the system and method are applicable to promotion in the field of electric cars.