34results about How to "Improve ignition ability" patented technology

The invention provides smokeless propellant powder with a safe, environmental-friendly and porous structure for fireworks. The smokeless propellant powder comprises the following components in parts by weight: 30-50 parts of high-energy oxidizer, 1-5 parts of catalyst, 10-80 parts of single-base powder, 1-5 parts of stabilizer, 1-5 parts of adhesive, 10-30 parts of primary explosive, 10-20 parts of pore foaming agent and 1-5 parts of combustion speed improving agent. The smokeless propellant powder is smokeless and environmental-friendly, and can ensure that no residual propellant exists in a canister launcher after launching; and the smokeless propellant powder has the characteristics of strong ignition capacity, easiness in ignition, high-temperature combustion products, greatly enhanced capacity of igniting an effect chemical, and low hygroscopicity.

The invention provides a composite incendiary agent for destroying ammunitions and a preparation method of the composite incendiary agent. The composite incendiary agent is prepared from the following components in percentage by weight: 60%-70% of a main reaction medicament, 1%-5% of a diluent, 5%-10% of a gas making agent and 20%-30% of an auxiliary medicament, wherein the main reaction medicament is prepared from 0.3-1.5 parts of iron sesquioxide, 1.6-2.9 parts of ferroferric oxide and 1 part of powdered aluminum; the dilute is alumina powder; the gas making agent is prepared from 0-5 parts of silicon carbide powder and 6 parts of potassium nitrate powder; the auxiliary medicament is prepared from 6 parts of copper oxide powder, 4 parts of powdered aluminum, 1-3 parts of silicon dioxide powder, 5 parts of nickel powder, 0-3 parts of calcium fluoride powder and 0-3 parts of calcium carbonate powder. The composite incendiary agent is stable, the combustion pressure is uniform, the fluidity of generated metal melt is good, the jet velocity meets incendiary requirements of the ammunitions, and the composite incendiary has strong capacity for smelting shells of projectiles the strong capacity for igniting explosives and does not detonate the explosives. When applied to the destroying of the ammunitions, the composite incendiary agent is low in dosage, high in action speed, relatively safe, efficient and convenient.

Provided is a scramming combustion chamber flowing to a linear plasma igniter, which is composed of an insulator (101), a discharge cathode (102), a discharge connection electrode (103), and a discharge anode (104). The discharge cathode (102) is connected to the cathode of the plasma power supply (301) by a wire built into the insulator (101); the discharge anode (104) is connected to the anode of the plasma power supply (301) by a wire built into the insulator (101); The electrode (103), the coupling capacitor (302), and the anode of the plasma power supply (301) are sequentially connected in series. Compared with the existing igniter and powder-type ignition method, the scramjet combustion chamber flow-to-linear plasma igniter and ignition method of the present invention are easy to be used in combination with the existing aero-engine drive power supply, thereby meeting the requirement of multiple repeated ignitions; Compared with the spark plug ignition method, the ignition method proposed by the present invention has a larger initial fire core and stronger spark energy, so the ignition capability is stronger.

The invention discloses a multichannel plasma area igniting burner. The igniting burner comprises a plasma power supply, a nozzle, an air inlet fish nozzle, a tangential air hole, an air pipe, a hollow insulator, a high-voltage electrode, an insulation piece, a low-voltage electrode, a housing, a swirl chamber, air vents, barrier mediums, a low-speed area, center jet flow and a flame stabilization chamber. Fuel oil is atomized by the use of a splash plate disposed inside the air inlet pipe, mixed gas composed of high-speed rotation air-flow and direct current jet flow is disposed inside the igniting burner, and the two flows cool the igniting burner. The space between the high-voltage electrode and the low-voltage electrode is filled with the inflammable mixed gas flowing at a low speed, so that multi-point discharge and ignition can be carried out in a low-speed mixed gas area inside the igniting burner; and an on-duty high-temperature combustion thermonuclear area and the flame stabilization chamber have ignition source and flame stabilization functions and form a miniature high-speed combustion chamber, so that the combustion chamber can efficiently and reliably ignite and keep flames stable under poor conditions such as high-speed, low-temperature, low-pressure, coal firing and the like.

The invention relates to an ignition powder and a preparation method, belonging to the field of energetic materials. The composition is as follows: 20-40% of graphene; 40-60% of potassium nitrate; 5-10% of calcium peroxide; 12-30% of ammonium persulfate; 1-8% of binder; The preparation process of the ignition powder is as follows: take graphene, potassium nitrate, calcium peroxide, ammonium persulfate and red phosphorus according to the above ratio and mix evenly; On the mixture, stir evenly, filter, dry, and sieve again to obtain the ignition powder. The ignition powder and its preparation method of the present invention have strong ignition ability, high ignition reliability and low sensitivity, ensuring the safety of transportation and use. The preparation method does not need to use complex equipment, the process is simple, and it is convenient for continuous production. .

A self-excited multi-point jet plasma igniter is composed of a shell (101), an insulator (102), a jet cavity (103-1-103-4), and a discharge electrode (201-206). Compared with the traditional single-jet igniter, the self-excited multi-point jet plasma igniter of the present invention can generate multiple jets, which can make up for the shortcomings of single-jet direction fixed and poor environmental adaptability. At the same time, the initial fire core formed by multiple jets forms multiple adjacent ignition sources, which effectively improves the ignition capability. In summary, the igniter of the present invention has a stronger ignition capability.