4624results about How to "Spread evenly" patented technology

The invention relates to a preparation method of a continuous fiber reinforced thermoplastic composite material prepreg and equipment thereof. The method comprises the following steps: (a) leading out and unfolding continuous fiber from a creel (10) to pass a tension adjusting device (20) and a static elimination device (30) in sequence, sending the fiber to a preheating oven (40) to preheat, and then passing a tension adjusting device (50); (b) leading a preheated continuous fiber band into a dual-extrusion die head set which can be opened and closed in a staggered manner to presoak; and (c) leading the presoaked continuous fiber band into a soaked rolling roll set (70) to soak, then cooling by a cooling roll-in device (80), and finally leading into a traction rolling device (90) for shaping by winding to obtain the product. Compared with the prior art, the invention significantly improve the dispersion, infiltrating property and operability of the fiber, and obtains the continuous fiber reinforced thermoplastic composite material prepreg which has uniformly dispersed and completely soaked fiber.

An optical film 10 has a transparent base film 11 made of polyethylene terephthalate (PET), a prism made of photo-curing resin such as acryl modified epoxy on an incident surface 12 that is one face of the base film 11, and a hologram similarly made of photo-curing resin on an exit surface 13 opposing the incident surface 12. The prism has grooves or ridges each having a substantially triangular cross section to totally reflect incident light so as to bend the light into a direction perpendicular to the exit surface 13. The hologram anisotropically diffuses light exiting from the exit surface 13, to improve brightness.

The invention discloses an onboard device suitable for the sowing job of an unmanned aerial vehicle and a sowing method. The onboard device comprises a scattering device arranged below the unmanned aerial vehicle, wherein the scattering device comprises a material box, a material stirring mechanism, a material discharging adjusting mechanism and a material scattering mechanism; the material stirring mechanism is arranged inside the material box; the material scattering mechanism is arranged below the material box; the material box comprises a box wall and a baseboard; a ventage is formed in the baseboard; the material discharging adjusting mechanism comprises a switch baffle arranged in the ventage and an actuating mechanism used for pushing the switch baffle to move in the ventage and adjusting the size of the leak; the material scattering mechanism comprises a side plate connected to the bottom of the material box, a wheel disc motor and a wheel disc connected with the wheel disc motor; the wheel disc is arranged on the inner side of the side plate; a scattering openings are formed in the side plate. According to the invention, the onboard device has the advantages of being small in size, low in cost, high in flexibility and convenient for controlling.

An adsorption module has heat medium pipes through which a fluid flows, a porous heat transferring member, and adsorbent. The porous heat transferring member is a sintered body formed by sintering a metallic material that is in a form of one of powders, particles and fibers, and has pores for allowing an adsorbed medium to pass through. The porous heat transferring member is disposed on peripheries of the heat medium pipes and bonded to outer surfaces of the heat medium pipes by sintering. The adsorbent is disposed in the pores. The porous heat transferring member further has an adsorbed medium passage for allowing the adsorbed medium to pass through. The adsorbed medium passage is located between the heat medium pipes, and extends straight and parallel to axes of the heat medium pipes.

The invention discloses a graphene-based nano iron oxide composite material and a preparation method thereof. By the method, iron oxide nano granules with uniform diameter and controllable shape and components can be loaded on graphene. The method comprises the following steps of: uniformly dispersing graphite oxide into deionized water by adopting an ultrasonic method to obtain graphene oxide solution; adding an iron salt precursor into the obtained solution and mixing the precursor and the solution uniformly, adjusting the pH of the solution, and hydrolyzing the iron salt; putting the mixed solution into a reaction kettle and performing hydrothermal reaction; and finally, cleaning and freeze-drying the obtained product to obtain the graphene-based nano iron oxide composite material. The raw materials are common and easily obtained, the cost is low, and the preparation process is simple, safe and environmentally-friendly; the prepared graphene-based nano iron oxide composite material has good structural stability and monodispersity; when the composite material is used as a lithium iron battery electrode material, the charge/discharge capacity can reach over 1,000mAh/g; and the composite material has good multiplying power performance and cycle life.

The invention discloses the composite of an environment-friendly rice flotable agricultural chemical preparation and a novel manufacture process thereof, which belongs to the field of farm chemical. The preparation is formed by compounding 0.1 to 50 percent of a weed killer, an insecticide, a fungicide or plant growth regulator active ingredients, 0.1 to 30 percent of a micropore sustained release agent, and 99.8 to 20 percent of a floatble carrier according to mass percentage. The preparation can effectively save the active ingredients by more than 70 percent, and can be directly applied on the surface of rice paddy field. The preparation has the characteristics of low cost, high efficacy, lasting drug action, safety, convenient use and so on, and is an environment-friendly agricultural chemical preparation.

The invention discloses a resident diet balance quantification analysis method based on an intelligent information processing terminal, and a system thereof. The resident diet balance quantification analysis method comprises the steps of firstly establishing a customized healthy dirt evaluation standard, establishing a science popularizing database on the intelligent information processing terminal; evaluating the rationality of resident diet; providing an energy consumption guidance to a user; providing a customized automatic diet to the user; and providing dynamic display for typical dishes and diets. The resident diet balance quantification analysis method and the system perform necessary setting for the upper limit and the lower limit of nutrition intake recommend value of different groups, and provide diet quantification analysis, balanced diet guidance, human body nutrition intake and consumption, diet matching, dish recommend, making demonstration and specific population diet guidance, and furthermore can be used anytime and anywhere. Professional knowledge of nutriology is transmitted to common people in a science popularizing mode, thereby realizing purposes of improving people's constitution and reducing frequency of chronic diseases.

A plurality of LEDs are arrayed in the X-direction, and a light-guide plate is provided facing the LEDs. A plurality of prisms extending in the Y-direction are formed on a light-receiving surface of the light-guide plate. A plurality of prisms are additionally formed on a light-emitting surface of the light-guide plate. Light emitted from the LED is thereby divided into a plurality of light beams by the prisms, and a portion of the light is condensed toward the prisms. Light that is condensed toward the prisms is divided in a plurality of directions and transmitted in the light-guide plate. When the light reaches another prism, the light is reflected by the prism and emitted from the light emitting surface.

A replacement light fixture for directing light emitted from a light source toward an area to be illuminated, including a base member upon with the light source is positioned and a reflector assembly detachably secured to a first and second mounting brackets that are mounted to a portion of the preexisting light fixture housing such that a lens portion of the reflector assembly overlies the light source and such that substantially all of the light emitted from the light source passes through the lens portion

The water soluble soldering flux specially for lead-free soldering material consists of boric acid and organic acid activator 5.0-10.0 wt%, non-ionic surfactant or cationic surfactant 0.1-1.0 wt%, co-solvent 8.0-20.0 wt%, filming agent 0.1-1.0 wt%, corrosion retardant 0.1-0.5 wt%, except deionized water. The compounding process includes the following steps: mixing co-solvent and partial deionized water, adding filming agent under stirring, adding the rest deionized water, activator and surfactant after dissolving, adding corrosion retardant while stirring to dissolve, stilling, and filtering to obtain the filtrate as the soldering flux. The water soluble soldering flux has excellent soldering assisting performance on lead-free soldering material, environment friendship and other advantages.

The invention relates to a halogen-free non-cleaning soldering flux for a lead-free solder wire, and belongs to the soldering flux field. According to the weight ratio, the invention comprises the following elements that: 4 to 18 wt percent of organic acid active agent, 10 to 30 wt percent of organic solvent, 1 to 6 wt percent of pasting agent, 0.2 to 3wt percent of stabilizer, 0.5 to 5wt percent of thixotropic agent, 0.5 to 4wt percent of surface active agent, 0.5 to 5wt percent of rust inhibition, and the rest comprises colophony. The invention includes no halogen, the speculummetal has no breakthrough after being welded, the insulation resistance is high, and the soldering performance is good, the problem of the potential solder joint short circuit caused by the soldering flux of the prior welding wire that the colophony content is too high, the smoke is large and the derelict is easy to be flaked away is solved, the invention is smooth and has no absorption of moisture under normal temperature, no cleaning is required after being welded, and the welding requirement of normal product can be met.

A structure for a high diffuse efficiency and water-proof lighting device is provided, including a light tube and a base holder. The light tube and the base holder are each an enclosed structure. The light tube includes a circuit substrate inside the enclosed structure. The circuit substrate includes a plurality of LEDs. The light tube and the base holder each include two holes close to both ends. When the light tube and the base holder are assembled, the holes match so that the wire connecting the circuit substrate can go through the holes to enter the base holder. A water-proof and highly pull-resistant glue is used to fill the overlapping of the holes. A resilient element is used to connect the neighboring circuit substrates, the resilient element can absorb the deformation caused by the temperature changes so that the light diffusion remains uniform. Therefore, the lighting device can perform well even when operating in an environment with drastic temperature changes.

A semiconductor light emitting device can include a base having a cavity provided for housing an LED chip and a resin spacer therein. The resin spacer can be composed of at least two layers of spacers including a transparent resin spacer and a wavelength conversion spacer mixed with a fluorescent material and formed to have an almost constant thickness. The wavelength conversion spacer can include a metallic radiation mesh or radiation wire disposed therein.

A red nitride phosphor of formula (I) or (II), and two green phosphors of formulas (III) and/or (IV) are included.

M_wAl_xSi_yB_zN_{((2/3)w+x+(4/3)y+z)}:Eu²⁺  (I)

M is any of Mg, Ca, Sr and Ba, and 0.5≦w≦3, x=1, 0.5≦y≦3 and 0≦z≦0.5,

M_pSi_qN_{((2/3)p+(4/3)q)}:EU²⁺  (II)

1.5≦p≦2.5 and 4.5≦q≦5.5,

M_xMgSi_zO_aX_b:Eu²⁺  (III)

M is any of Ca, Sr, Ba, Zn and Mn, X is any of F, Cl, Br and I, and 6.5≦x≦8.0, 3.7≦z≦4.3, a=x+1+2z−b/2 and 1.0≦b≦1.9,

Si_cAl_dO_fN_g:Eu²⁺  (IV)

c+d=6, 5.0≦c<6, 0<d≦1.0, 0.001<f≦1, 7≦g<8.

The invention relates to a kind of method for manufacturing propylene by catalytic cracking alkene of no less than tetra carbon, which mainly solves the short catalyst regeneration period problem and the stability problems uninvolved in previous technique. The invention uses minor crystalline grain and molecular sieve with high silicon-aluminium ratio as the catalyst for catalytic cracking with alkene that no less than tetra carbon to manufacture propylene. According to the technique scheme that described above, the invention can solve the problems mentioned above excellently, and can be used in industrial production of manufacturing propylene by catalytic cracking with alkene.

The invention discloses a lithium-based concrete sealing solidifying agent. The lithium-based concrete sealing solidifying agent comprises the following components in percentage by weight: 50.0-90.0 percent of lithium silicate sol, 0.01-1.0 percent of wetting and dispersing agent, 0.01-1.0 percent of defoaming agent, 0.01-1.0 percent of permeability-resistant agent, 0.0-10.0 percent of stabilizing agent, 0.0-1.0 percent of accelerating agent and the balance of water. The lithium-based concrete sealing solidifying agent can produce C-S-H gel through the effective permeability and the hydration reaction with dissociative calcium ions in concrete to seal capillary pores in the concrete, so that the permeability resistance, the wear resistance, the hardness and other performance of the concrete can be improved.