30results about How to "To achieve the purpose of spraying" patented technology

The invention discloses a fuel injector capable of injecting fuel to an engine quantitatively at fixed time in a controllable manner. The fuel injector comprises a fuel injector body, a piston couple, a fuel nozzle return spring component, a fuel nozzle couple, a transition plate, a throttling pore plate, a ball valve, a control valve couple and an electromagnetic valve component, wherein the piston couple and the fuel nozzle return spring component are installed in the fuel injector body; the fuel nozzle couple and the transition plate are installed on the lower end of the fuel injector body; the throttling pore plate, the ball valve, the control valve couple and the electromagnetic valve component are installed on the upper end of the fuel injector body. The hydraulic force in a pressure control chamber is controlled by opening and closing a fuel discharge throttling hole in the throttling pore plate by the ball valve, and further, the hydraulic force of the upper end of a needle valve rod is controlled; a fuel nozzle is opened and closed by the unbalance of the hydraulic force at the upper end and the lower end of the needle valve rod so as to control fuel injection precisely. The fuel injector provided by the invention is high in controlled pressure, can be used for injecting fuel quantitatively for multiple times, has the characteristics of high-speed response and large pressure control range, and can control the fuel injection quantity, the fuel injection timeliness and the fuel injection pressure accurately and flexibly and improve the combustion in an engine cylinder, thereby reducing harmful emissions of the engine, and improving the economical efficiency, the dynamic property and the drivability of the engine.

The invention relates to a numerical control milling tool capable of reducing deformation of a workpiece. The tool comprises a platen, a moving rack, an electric slide block and a milling mechanism. The moving rack is mounted at the upper end of the platen, the electric slide block is mounted at the lower end of the moving rack, the milling mechanism is mounted at the lower end of the electric slide block and comprises a driving moor, a driving connecting part, a knife handle, a milling cutter and a cooling branch chain, the driving connecting part comprises a connecting cap, a compacting rack, an auxiliary motor and an auxiliary rod, the cooling branch chain comprises a rotating block, a liquid spraying barrel, a liquid outlet and a liquid storage device, the liquid storage barrel comprises a barrel body, a piston rod, a reset spring and a shielding sheet. Most parts of the milling mechanism are connected detachably, so that the parts are detached and maintained conveniently. In the milling process, the cooling branch chain can reduce the temperature of the milling cutter, can reduce the thermal deformation degree of the workpiece as a result of too high temperature, and improvesthe processing quality.

The invention provides an electrolytic aluminum prebaked anode anti-oxidation insulating coating. The electrolytic aluminum prebaked anode anti-oxidation insulating coating comprises the following components in percentage by mass: 60%-75% of a main component, 0.01%-5% of a secondary component, 24%-34% of a nano solvent binding phase and 0.01%-5% of a coating stabilizing phase, wherein the main component comprises amorphous aluminum oxide, nano-scale rho-Al2O3, nano-scale gamma-Al2O3 and nano-scale alpha-Al2O3. The insulating coating prepared by the invention can be cured at normal temperaturefor 6-8 hours after being sprayed to an anode by a spraying machine, the anode coating can form a compact net-shaped structure at the working temperature of 500-800 DEG C, the long-term tolerable temperature is over 900 DEG C, and the physical and chemical properties are stable.

The present invention relates to the related field of building material processing, more specifically, it is an in-pipe spraying device suitable for curved pipes, including a distance adjustment mechanism, an angle adjustment mechanism, a height adjustment mechanism, a propulsion mechanism, an elbow mechanism and a material box. The angle adjustment mechanism is threadedly connected with the distance adjustment mechanism, the distance adjustment mechanism is fixedly equipped with a material box, the height adjustment mechanism is rotatably installed on the angle adjustment mechanism, the propulsion mechanism is fixedly installed on the height adjustment mechanism, and the elbow mechanism is fixedly installed on the propulsion mechanism. The elbow mechanism is fixedly connected with the material box; the device sprays in a rotating manner to avoid uneven spraying caused by blockage of individual nozzles. The device not only has the function of spraying straight pipes, but also has the function of spraying the bends of pipe fittings .

The invention discloses an agricultural spraying device, which comprises a spray head, several material storage devices, several first support rods and second support rods. The bottom of the spray head is provided with a spray hole, and the top of the spray head is open. Each material storage device is equipped with a horizontal plate, the bottom of each material storage device is provided with a number of seepage holes, and slide rails are respectively provided on the two inner side walls opposite to each material storage device, and the slide rails run through the corresponding inner wall of the Both ends of the horizontal plate are respectively inserted into the corresponding slide rails and are slidably connected with the slide rails. The bottom of the horizontal plate is provided with several through holes, and the bottom of the horizontal plate and the bottom of the material storage device keep seamless contact, and the thickness of the horizontal plate is equal to the height of the slide rail. Several material storage devices are arranged in a vertical direction, and adjacent material storage devices are connected by first support rods. One end of the second support rod is connected with the lowermost material storage device, and the other end of the second support rod is connected with the spray head. The invention has the advantages of improving efficiency, reducing cost and having various functions.

The invention discloses an automatic stirring spraying device for oil paint. A first support is arranged on a fixed base, and a second support is connected to the first support; the end portion of thesecond support is connected with a first control module; the first control module is provided with a sliding lifting shaft; the lifting shaft penetrates through a sealing cover and then slides in anoil paint barrel; the lifting shaft is provided with a swinging stirring support; the other end of the lifting shaft is provided with a third control module sliding on the first control module; the lifting shaft rotates on the third control module; a first motor driving the lifting shaft to rotate is arranged in the third control module; due to sliding of the lifting shaft, the lifting shaft can further slide into the oil paint barrel; and meanwhile, due to swinging of the stirring support, the oil paint can be further stirred, and therefore solidification of the oil paint is avoided, and thespraying effect of the oil paint is further improved.

The invention discloses a manufacturing method of a selective emitter cell, and the method comprises the steps: 1) removing the damage layer of a silicon chip and manufacturing a pile face on the surface of the silicon chip; 2) spraying phosphorus source and doping by utilizing laser on the silicon chip after the first step; 3) carrying out high-temperature chain-type diffusion for the sprayed and doped silicon chip to obtain p-n junctions of a zone outside the right positive electrode zone; 4) removing PSG on the surface of and p-n junctions around the silicon chip after the high-temperature chain-type diffusion; 5) depositing a layer of silicon nitride film which plays effects of reflection reduction and passivation on the surface of the silicon chip after the fifth step; 6) printing and sintering a back electrode, a back electric field, and a right electrode on the silicon chip with the silicon nitride film to metallize the electrodes and obtain the selective emitter cell; 7) testing each parameter of the selective emitter cell and grading the selective emitter cell according to the technology standard. The method can effectively improve the conversion efficiency of a solar cell and be used in production conveniently.

The invention discloses a vehicle production part surface spray-coating device for a special-shaped piece. The spray-coating device comprises a supporting base. A supporting plate is connected with the upper surface of the supporting base. A programmable controller is installed on the side face of the supporting base. A first electric telescopic rod is installed at the upper end of the supportingplate. A spray-coating workbench with a clamping structure is connected with the top end of the first electric telescopic rod. A connecting groove is formed in the supporting plate. A slide groove isreserved in the connecting groove. A slider is slidingly connected into the slide groove and connected to a limiting piece. By means of the vehicle production part surface spray-coating device for thespecial-shaped piece, spray-coating can be conveniently performed on the special-shaped piece, the problem that spray-coating is not convenient due to inclined grooves in the special-shaped piece issolved, and spray-coating pipes with different sizes can be selected according to the sizes of the inclined grooves in the special-shaped piece to perform spray-coating.