35results about How to "Reduce vulcanization" patented technology

The invention relates to a method for preparing a superhigh metal load capacity hydrogenation catalyst. The method comprises the following steps: depositing an aluminum source modifier on a carrier; metal, an organic complexing agent and deionized water are mixed; the mixed product is dipped on a carrier deposited with the aluminum source modifier; the carrier dipped with the mixed product is dried and roasted; wherein, the main metal components are Mo and W of VIB family, the auxiliary agent components are Co and / or Ni of VIII family; the aluminum source modifier is one or combination of aluminum isopropoxide, aluminum chloride and aluminum nitrate; the pore volume of the carrier deposited with the aluminum source modifier is 1.5-3.0 ml / g, the specific surface area is 400-800 m<2> / g, and the aperture proportion of the aperture with 15-20 nm is greater than 50%. According to the preparation method of the invention, catalyst activity is obviously increased by increasing the metal load capacity, the catalyst has a good pore structure and a large specific surface area; preparation flow of the catalyst is simplified, and the preparation cost of the hydrogenation catalyst with high metal content is reduced.

The invention discloses an integrated high-power LED (Light Emitting Diode) light source with more than two convex mirrors and a manufacturing process thereof, wherein the integrated LED light source comprises a substrate and more than two LED chips or more than two sets of LED chip modules; the LED chips or the LED chip modules are installed on the substrate; independent convex mirrors are formed on the LED chips or the LED chip modules by being quantitatively pressed through an automatic high-temperature high-pressure die; and a film bonded to the substrate is formed between the adjacent convex mirrors in the quantitative pressing and forming processes by adopting the automatic high-temperature high-pressure die. The manufacturing process mainly comprises the steps of quantitatively pressing and forming the convex mirrors by adopting the automatic high-temperature high-pressure die, and forming a silicone film between every two convex mirrors. According to the invention, the cost of the manufacturing process is low; the technological process is simple; the light condensation effect of the manufactured integrated high-power LED light source is good; consistency of light colours is good; air vulcanization on the integrated high-power LED light source is effectively reduced; and the service life of the integrated LED light source is greatly increased.

The invention provides a preparation method of anti-sulfur chip LED (Light Emitting Diode) packaging adhesive. The preparation method at least comprises the steps of adding white carbon powder and silazane into initial phenyl vinyl silicone resin to perform stirring and hyperthermic treatment. The LED packaging adhesive prepared by the preparation method of the anti-sulfur chip LED packaging adhesive has a certain function of adsorbing and removing oxidizing substances, and the gas tightness of the packaging adhesive can be effectively improved, andthus a function of delaying vulcanization can be well realized.

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 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.

A balanced injection structure for a rubber injection machine, comprising an upright injection barrel connected to a plasticizing part, with an injection plunger head in transmission connection with an injection cylinder, a nozzle body at the lower end, and an injection cylinder with a There are more than two, which are evenly distributed on the side of the injection barrel, and the piston rod of the injection cylinder is connected with the transmission plunger head of the injection cylinder. The injection part of the present invention is placed vertically, but the injection cylinder and the injection barrel are arranged in a plane and parallel, so that the height of the whole machine is reduced; the plasticizing part and the injection part are independent, the temperature control of the plasticizing and injection parts is easy to control, and the nozzle opening is reduced The amount of vulcanization of the rubber material, and the cleaning of the rubber material is convenient; at the same time, there are more than two injection cylinders, which are evenly distributed on the side of the injection barrel, and the piston rod is connected to the injection plunger head of the injection barrel through a beam. When injecting, the piston rod retracts and pulls the crossbeam; the crossbeam pushes the injection plunger head, and the injection plunger head pushes the rubber to be injected through the inner flow channel of the nozzle body.

The invention discloses a conductive ink of an ultra-low haze silver nanowire film and its preparation method and application. The conductive ink prepared by the preparation method is used to manufacture an ultra-low haze silver nanowire film. The preparation method obtained The silver nanowire has a diameter of 20 nanometers and an aspect ratio of 1000; the optical transmittance of the film made of conductive ink is higher than 95%, and the haze is lower than 0.5%. The conductive ink in the present invention reaches the photoelectric performance index of the film required by the high-definition screen in one film formation, and the silica sol added in the conductive ink tightly fixes the silver nanowires on the substrate and forms an aging protective layer on its surface. The surface hardness of the film reaches 3H, which is scratch-resistant, and has excellent environmental stability and anti-aging. The preparation method of the conductive ink is environmentally friendly and pollution-free, does not require expensive equipment such as high temperature and vacuum, is easy to operate, and is conducive to large-scale and low-cost promotion.

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 discloses a nickel-based molybdenum disulfide powder for laser cladding, a preparation method and a use method thereof, comprising the following components: molybdenum disulfide powder: 3-8%wt, particle size 0.1-2 microns; aluminum powder : 2~5%wt, particle size 200~300 microns; the balance is nickel powder, particle size 50~100 microns. The nickel-based molybdenum disulfide powder involved in the invention can effectively control the thermal decomposition of the molybdenum disulfide during the laser cladding process, thereby reducing the vulcanization effect of the decomposition on the obtained cladding layer, and improving the oxidation resistance of the cladding layer.

The invention relates to an optical scanning galvanometer of super high reflectivity, which is composed of a glass substrate layer and a highly-reflective film deposited and plated on the glass substrate layer. The highly-reflective film is composed of nine film layers, which are sequentially, according to the distance from the glass substrate layer from small to large, a first Al2O3 film layer, an Ag film layer, a second Al2O3 film layer, a first SiO2 film layer, a first high-refractivity material film layer, a second SiO2 film layer, a second high-refractivity material film layer, a third SiO2 film layer, and a third high-refractivity material film layer. The beneficial effects are as follows: the reflection bandwidth and resonance angle are increased greatly while the number of coating layers is reduced; the reflection bandwidth with the reflectivity higher than 99% is up to 300nm; and the effective resonance angle can be 0-80 degrees.