JPH0545098A - Electrothermic chemical bullet - Google Patents

Abstract

PURPOSE:To install an aluminum wall body, which serves as aluminum to react chemically with water, into a vacuum chamber, minimize heat loss during heating and melt the wall body more effectively with regards to electrothermic gun. CONSTITUTION:An electrothermic gun fires a bullet 8 based on the chemical reaction between water and aluminum installed in a casing 1, it is provided with an aluminum wall body 10 installed in a vacuum chamber 13 formed at the rear side of a reaction water chamber 12 which contains water 7 adjacent to the bullet 8 and an electrode 2 connected with the wall body 10 exposed at the rear wall 1aA of the casing 1.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to electrothermal chemical bullets,
In particular, the present invention relates to a novel improvement for providing an aluminum wall body as aluminum that chemically reacts with water in a vacuum chamber to minimize heat loss during heating and efficiently melt the aluminum wall body.

[0002]

2. Description of the Related Art As a conventional example of this type of electrothermal chemical bullet, a configuration shown in FIG. 4 has been developed. That is, what is denoted by reference numeral 1 in FIG. 4 is a cylindrical container made of an electrical insulator. An electrode 2 is screwed to one end 1a of the container 1 and the other end 1b of the container 1 is provided. A tubular connector 3 made of a metal body is screwed into the. A disc 4 made of aluminum is provided between the connector 3 and the container 1, and the surface 2a of the electrode 2 and the disc 4 is
4a is exposed in the void portion 1c formed in the container 1. The linear aluminum bodies 5 and 6 are connected and provided between the respective one surfaces 2a and 4a.
The inside is filled with water 7. The aluminum bodies 5 and 6 are coated with boron so as not to be corroded by the water 14. Also, the connector 3
A bullet 8 is loaded inside, and a bottom portion 8a of the bullet 8 is loaded with an oxygen-generating charge 9, for example, ammonium nitrate.
It is configured to prevent the detonation of hydrogen generated from the muzzle (muzzle) of a gun barrel (not shown). Therefore, when the aluminum bodies 5 and 6 are energized, a chemical reaction occurs with water at the moment when the aluminum bodies 5 and 6 are melted to form high-temperature aluminum vapor, high-temperature hydrogen gas is generated, and the bullet 8 presses this pressure. Fired by.

[0003]

Since the conventional electrothermal chemical bullet has the structure as described above, the following problems exist. That is, since each aluminum body was directly buried in the water chamber, when the aluminum body was heated, the heat escaped into the water (that is, the water was heated), and the amount of heat that escaped into the water far exceeded. Electric power had to be applied to each aluminum body, and the power supply became extremely large, which was a big problem in actual deployment.

The present invention has been made to solve the above problems, and in particular, an aluminum wall as aluminum that chemically reacts with water is provided in a vacuum chamber to minimize heat loss during heating. It is an object of the present invention to provide an electrothermal chemical bullet capable of efficiently melting an aluminum wall.

[0005]

SUMMARY OF THE INVENTION An electrothermal chemical bullet according to the present invention is an electrothermal chemical bullet which is provided in a casing for firing a bullet by a chemical reaction between water and aluminum, and which has water adjacent to the bullet. An aluminum wall provided in a vacuum chamber formed at a rear position of the reaction chamber,
And an electrode that is exposed on the rear wall of the casing and is connected to the aluminum wall.

More specifically, the aluminum wall has a conical shape.

More specifically, the reaction chamber is composed of a cup-shaped metal container fitted into the bullet.

More specifically, one end of the aluminum wall is joined to the metal container and screwed into a screw hole portion of the casing.

[0009]

In the electrothermal chemical bullet according to the present invention, since the aluminum wall is disposed in the vacuum chamber, the aluminum wall is instantly melted by supplying a small amount of electric power to the aluminum wall, and when the aluminum wall is applied, It is compressed by the electromagnetic force of the electric current to become a thin string-shaped high-temperature aluminum melt, and is accelerated toward the front container side. Therefore, the rear wall of the container is destroyed by this high-temperature aluminum melt, the high-temperature aluminum melt and water chemically react to generate high-pressure high-temperature hydrogen and aluminum oxide particles, and the pressure of the high-temperature hydrogen and aluminum oxide is high. The bullet is fired forward by.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the electrothermal chemical bullet according to the present invention will be described in detail below with reference to the drawings. It should be noted that the same or equivalent portions as those of the conventional example will be described using the same reference numerals. 1 to 3 show an electrothermal chemical bullet according to the present invention. FIG. 1 is a sectional view showing the entire structure, FIG. 2 is a sectional view showing an operation starting state of FIG. 1, and FIG. It is sectional drawing which shows the state which operation further advanced.

In FIG. 1, reference numeral 1 denotes a casing having a substantially cylindrical overall shape and made of an electrical insulator, and a screw formed at the axial center of the rear wall 1aA of the rear end 1a of the casing 1. An electrode 2 having a conical aluminum wall body 10 made of aluminum integrally connected to the hole 1aB is provided by screwing.

A screw hole portion 11 is formed on the inner wall of the tip portion 1b of the casing 1, and the screw hole portion 11 is formed.
A screw portion 10aA formed at one end 10a of the aluminum wall 10 is screwed into the inside.

Inside the inner wall 10aB of the one end 10a, a conductive container 3 made of a metal or the like having an overall shape is fitted and provided, and the inner wall 3a of the container 3 is located up to a substantially central position in the longitudinal direction. A bullet 8 is fitted in the container 8, and a reaction chamber 12 for holding the water 7 in a sealed state is formed between the rear wall 3b of the container 3 and the rear end surface 8a of the bullet 8.

A closed vacuum chamber 13 is formed by the rear end face 8a, the aluminum wall 10 and the rear inner end face 1d of the casing 1, and the vacuum chamber 13 is maintained in a high vacuum state. The aluminum wall 10 is located in the vacuum chamber 13.

A switch 14 is provided between the electrode 2 and the container 3.
And the power supply 15 are connected in series.

Next, in the above configuration, the switch 14
When the power is turned on, the power is supplied between the electrode 2 and the container 3, so that the aluminum wall body 10 under vacuum changes from the state shown in FIG. 1 to that shown in FIG.
Then, it is compressed by the electromagnetic force of the applied current to form a thin string-shaped high-temperature aluminum melt 10B (a well-known Neumann jet state).

Since this aluminum melt 10B is accelerated toward the front container 3 side, the rear wall 3b of the container 3 is destroyed by this, and the high temperature aluminum melt 10B and water 7 undergo a chemical reaction to generate a high pressure. High-temperature hydrogen 40 and granular aluminum oxide 41 are generated, and the high-temperature hydrogen 40 and aluminum oxide 41 press the bullet 8 at high pressure and the bullet 8 is fired. The above-mentioned shapes of the respective parts are merely examples, and even when the shapes are slightly changed, the same effects as the above can be obtained.

[0018]

Since the electrothermal chemical bullet according to the present invention is constructed as described above, the following effects can be obtained. That is, since the aluminum wall is disposed in the vacuum chamber inside the bullet, the heat loss during the heating of aluminum is minimized as compared with the conventional structure located in water.
Since it can be melted with high efficiency, it is possible to obtain an electrothermal chemical gun whose power source is much smaller than in the past, and it is possible to bring about unlimited benefits in practical deployment.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an electrothermal chemical bullet according to the present invention.

FIG. 2 is a cross-sectional view showing the operation start state of FIG.

FIG. 3 is a cross-sectional view showing a state where the operation of FIG. 2 further progresses.

FIG. 4 is a sectional view showing a conventional electrothermal chemical bomb.

[Explanation of symbols]

 1 Casing 1aA Rear Wall 2 Electrode 3 Container 7 Water 8 Bullet 10 Aluminum Wall 10a One End 11 Screw Hole 12 Reaction Chamber 13 Vacuum Chamber

Claims (4)

[Claims] 1. An electrothermal chemical bullet in which a bullet (8) is fired by a chemical reaction between water and aluminum provided in a casing (1), having a water (7) adjacent to the bullet (8). An aluminum wall (10) provided in a vacuum chamber (13) formed at a rear position of the reaction chamber (12), and the casing.
(1) An electrothermal chemical bullet, comprising: an electrode (2) which is exposed on a rear wall (1aA) and is connected to the aluminum wall (10). 2. The electrothermal chemical bullet according to claim 1, wherein the aluminum wall (10) has a conical shape. 3. The electrothermal chemical bullet according to claim 1, wherein the reaction chamber (12) comprises a cup-shaped container (3) fitted into the bullet (8). 4. One end (10a) of the aluminum wall (10)
The electric heating according to any one of claims 1 to 3, characterized in that it is joined to the container (3) and screwed into the screw hole portion (11) of the casing (1). Chemical bullet.