64results about How to "Jet speed" patented technology

The invention relates to a hot melt adhesive spray valve. The hot melt adhesive spray valve can comprise a hot melt adhesive heating device, a valve body, a valve element and a striker. Heat transferof the hot melt adhesive heating device acts on a hot melt adhesive tank and a flow channel, wherein the flow channel communicates with an outlet of the hot melt adhesive tank. The valve body comprises a first cavity and a second cavity, wherein the first cavity and the second cavity are spaced from each other in a sealed manner. The first cavity is provided with an air inlet. On and off switchingof an air inlet channel communicating with the air inlet is achieved through a high-frequency air inlet and outlet switch. The air inlet end of the high-frequency air inlet and outlet switch is connected with high-pressure air. The second cavity is provided with an adhesive inlet and a spray orifice, wherein the adhesive inlet communicates with the flow channel, and the spray orifice is formed inthe lower end. The valve element is jointed into the first cavity in a sealed manner and connected with an elastic component. The upper end of the striker is fixed to the valve element and extends tothe second cavity. The lower end of the striker can plug the spray orifice. The valve element can perform reciprocation motion in the first cavity under the effect of the high-pressure air and the elastic component, and furthermore, the striker is driven to perform reciprocating motion so that hot melt adhesive entering the second cavity through the flow channel can be sprayed out of the spray orifice.

The invention relates to a thermal plasma technology, in particular to a plasma generator for powder spheroidizing or fine coating. The generator comprises a cathode assembly, an insulating sleeve and an anode assembly; the cathode assembly comprises a red copper seat, a cathode head and a cathode cooling sleeve, and the anode assembly comprises an anode and an anode cooling sleeve which are coaxially mounted. A spherical tungsten rod serves as a cathode head and is embedded in a red copper seat, electrode ablation is relieved, the service life of an electrode is prolonged, an anode is of a 2-5 mm hollow red copper structure, and working gas is converged in a channel between the cathode head and the anode to form high-speed plasma jet flow after forming higher atmospheric pressure and passing through an anode channel. The diameter of the plasma jet beam generated by the device ranges from 2 mm to 5 mm, energy is more concentrated, the jet speed is higher, powder can better absorb heat to be melted, and the spherical powder preparing or coating efficiency is improved.

The invention discloses a dispersion-type efficient pesticide spraying machine. The dispersion-type efficient pesticide spraying machine comprises a spraying machine body, a pesticide storing cavity, a pesticide spraying pipe and a spraying head. The inside of the spraying machine body is divided by a partition plate into the pesticide storing cavity and an air dissolving cavity; a stirring shaft is transversely arranged inside the pesticide storing cavity, stirring blades are perpendicularly arranged on the surface of the stirring shaft, and a driving motor is arranged outside the pesticide storing cavity; the air dissolving cavity is formed in the bottom of the spraying machine body, a micro-air pump is fixedly connected on the inner wall of the air dissolving cavity, and an air inlet is formed in the side wall of the left side of the spraying machine body; a water pump is fixedly connected to the bottom of the air dissolving cavity; a pesticide discharging opening is formed in the bottom of the right side of the spraying machine body; a stretchable flexible pipe is fixedly connected to the pesticide discharging opening in a hot-press mode; a pesticide spraying pipe is fixedly connected to the tail end of the stretchable flexible pipe, the spraying head is fixedly connected to the tail end of the pesticide spraying pipe, and a dispersion sheet is fixedly connected to the surface of the spraying head. The concentration of the pesticide liquid inside the pesticide spraying machine is even, the covering range when pesticide is sprayed is large, the atomization effect is good, the pesticide spraying effect is improved, the spraying speed of pesticide water is high when the pesticide is sprayed, the dispersion degree of the pesticide is high, and the pesticide spraying efficiency is improved.

The invention discloses a groove milling cutter, and relates to the technical field of milling cutters. The groove milling cutter comprises a cutter handle and a cutter head which is coaxially fixed at one axial end of the cutter handle, at least two blades are uniformly distributed in the circumferential direction of the cutter head, a containing groove is coaxially formed in one end, close to the cutter handle, of the cutter head, the cutter handle covers an opening of the containing groove, a liquid inlet hole which communicates with the containing groove is formed in the cutter handle in the axial direction; the cutter head is further provided with a plurality of liquid discharging holes, the liquid discharging holes correspondingly communicate with the circumferential inner wall of the containing groove, the number of the liquid discharging holes corresponds to the number of the blades, and the liquid discharging holes face the positions, away from the axis of the cutter head, ofthe blades. According to the groove milling cutter, the liquid inlet hole, the containing groove and the liquid discharging holes are formed, so that the blades make more sufficient contact with cooling liquid in the groove milling process of the groove milling cutter, and the cooling effect of the blades is better; and in addition, the cooling liquid sprayed out at a high speed can further carryout impact on cuttings, so that the situation that the cuttings are stuck to the cutter is reduced, and overall use is more stable.

The invention provides a film preparation device and preparation method based on ink-jet printing. A top plate and a bottom plate which are correspondingly arranged are adopted, nozzle arrays which face the bottom plate and are controlled by a control device are installed on the lower end face of the top plate and jet reagents to a substrate arranged on the upper end face of the bottom plate, and then film is prepared. The film preparation device is simple in structure, the film preparation method is simple in technological process and convenient to operate, and then the film preparation efficiency and quality can be effectively improved.

The invention discloses a spot gluing valve based on giant magnetostrictive rod drive, which comprises a spray needle (13) and a valve body. An end cover (3) is fixed on a shell (12), and an excitation coil (11) is fixed in the shell (12) through the end cover (3); an elastic pre-tightening device is arranged on the end cover (3); the upper end of the spray needle (13) is tightly pressed by the elastic pre-tightening device, and the lower end of the spray needle (13) enters the valve body through the shell (12); a giant magnetostrictive rod is arranged at the center of the excitation coil (11); one end of the giant magnetostrictive rod is tightly butted and fixed on the shell (12), and the other end of the giant magnetostrictive rod is butted on the spray needle (13) which is tightly pressed by the elastic pre-tightening device through a magnetic conduction sheet (8); the end cover (3), the magnetic conduction sheet (8) and the shell (12) are magnetic conduction materials; and the end cover (3), the magnetic conduction sheet (8), the shell (12) and the giant magnetostrictive rod form a closed magnetic circuit. In the invention, the spot gluing valve based on giant magnetostrictive rod drive has the advantages of simple structure, convenient use, high spraying frequency, high spraying accuracy and long service life.

The invention discloses a navigation system working method being capable of avoiding serial rear-ends, wherein the navigation system includes a navigation device and a plurality of camera devices arranged around a vehicle (2). The navigation device includes a processor module being connected to a vehicle controller in the vehicle. When the processor module finds that a brake light of a vehicle (1) ahead the vehicle (2) in the lane is lighted on through the camera devices, the processor module sends a brake light control signal to the vehicle controller, so that the vehicle controller controls the brake light of the vehicle (2) to light on to reminding a vehicle (3) behind the vehicle (2) to take effective measures timely and keep enough distance from the vehicle (2). The method can avoid rear-end caused by the vehicle (3) and further avoid the serial rear-ends, thereby ensuring driving safety.

The invention relates to a hot melt adhesive spray valve. The hot melt adhesive spray valve can comprise a hot melt adhesive heating device, a valve body, a valve element and a striker. Heat transferof the hot melt adhesive heating device acts on a hot melt adhesive tank and a flow channel, wherein the flow channel communicates with an outlet of the hot melt adhesive tank. The valve body comprises a first cavity and a second cavity, wherein the first cavity and the second cavity are spaced from each other in a sealed manner. The first cavity is provided with an air inlet. On and off switchingof an air inlet channel communicating with the air inlet is achieved through a high-frequency air inlet and outlet switch. The air inlet end of the high-frequency air inlet and outlet switch is connected with high-pressure air. The second cavity is provided with an adhesive inlet and a spray orifice, wherein the adhesive inlet communicates with the flow channel, and the spray orifice is formed inthe lower end. The valve element is jointed into the first cavity in a sealed manner and connected with an elastic component. The upper end of the striker is fixed to the valve element and extends tothe second cavity. The lower end of the striker can plug the spray orifice. The valve element can perform reciprocation motion in the first cavity under the effect of the high-pressure air and the elastic component, and furthermore, the striker is driven to perform reciprocating motion so that hot melt adhesive entering the second cavity through the flow channel can be sprayed out of the spray orifice.

An automatic powder-spraying explosion suppressor for fire-fighting in a coal mine relates to a fire-fighting explosion suppressor. A sheath is fixed at the lower end of a powder storage steel cylinder, and the sheath and a connecting flange are sealed and fixed, and a power connector is fixed on the sheath. The connecting flange and sealing ring are installed on the gas pipeline, the spout body is set on the fastening flange, the spout body is equipped with an explosion-proof device, and the flange plate is fixed at the lower end of the powder storage cylinder; the filling valve and pressure switch are installed on the rear side of the flange plate Installed on the front of the flange, the starter is fixed on the right side of the fastening flange; the electric squib is installed in the starter housing, and the front end is equipped with a push rod with a sealing ring, which is fixed and compressed by a compression nut; fastening method A horizontal lever is set in the blue inner hole. The powder spraying explosion suppressor has the advantages of simple structure, safety and reliability, fast starting and spraying speed, and conforms to environmental protection requirements.

The invention relates to a gear burr removing technology. The technology comprises the following specific steps that 1, a burr removing device is constructed; 2, a gear is placed; 3, conducting and discharging are carried out; 4, an electrolyte is sprayed; 5, the gear is washed ultrasonically; 6, antirust treatment is carried out; and 7, the gear is naturally dried in air and delivered from storage. The technology has the following advantages that an anode terminal and a cathode terminal are utilized for conducting and discharging, the electrolyte is sprayed to the gear fast from bottom to top, the spraying speed is high, the electrolyte is sprayed in a centralized manner, and the burr removing effect is achieved; meanwhile, the burr removing effect is remarkable, the risk that the gear isbroken down is avoided, time for burr removing is short, and efficiency is high; the concentration of sodium nitrate is low, harm to the human body is avoided, corrosion to the surface of the gear isavoided, and meanwhile, the good burr removing effect can be ensured; and as the electrolyte spraying speed is high and the flow amount is large, the complex washing step in the later period is omitted, the gear only needs to be washed with clear water, the gear is washed ultrasonically, and thus greasy dirt on the surface of the gear can be decomposed and emulsified.

The invention discloses an energy-saving and consumption-reducing scrap steel preheating spray gun, and relates to the technical field of ferrous metallurgy. The energy-saving and consumption-reducingscrap steel preheating spray gun comprises a gun body, one side of the gun body is fixedly connected with a fuel gas inlet pipeline communicating with the gun body, the bottom end of the gun body isfixedly connected with a fuel gas accelerator a, the bottom end of the fuel gas accelerator a is connected with a fuel gas distributor, the bottom end of the fuel gas distributor is connected with a fuel gas injection mechanism a and a fuel gas injection mechanism b, and the fuel gas injection mechanism b is fixedly connected with a mixed gas injection mechanism. According to the energy-saving andconsumption-reducing scrap steel preheating spray gun, the preheating effect is enhanced, the covering range is large, preheating is uniform, the combustion rate and the utilization rate of fuel gasare guaranteed, the preheating speed is high, fuel gas is saved, and the energy-saving and consumption-reducing effects are obvious.

The invention provides a droplet jetting device and a related method. The droplet jetting device comprises a piezoelectric chip and an interdigital transducer arranged on the upper surface of the piezoelectric chip, the ratio of the thickness of the piezoelectric chip to the period of the interdigital transducer is 1-3, the interdigital transducer is driven by a radio frequency signal to excite surface acoustic waves and bulk acoustic waves in the piezoelectric chip, and the surface acoustic waves and the bulk acoustic waves are reflected on the upper surface and the lower surface of the piezoelectric chip to generate composite acoustic waves so as to drive to-be-driven liquid on a liquid attachment area to stretch in the direction perpendicular to the surface of the piezoelectric chip to form a liquid column, so that the liquid column generates a liquid drop pinch-off effect at the end part, and a single liquid drop is ejected, the liquid attachment area is located on the upper surface and / or the lower surface of the piezoelectric chip and corresponds to the area covered by the surface acoustic wave generated by the interdigital transducer propagating along the surface of the piezoelectric chip. The problems that a device is complex in structure, high in cost, low in efficiency and inconvenient to achieve on-demand jetting are solved.