DE2814598A1 - Detonating capsule with fuse cord - has amplifier charge between end of fuse and initial detonator charge - Google Patents

Abstract

A detonating capsule intended esp. for pioneer explosive charges, either in industrial or military use, consists of a metal or plastics tube containing the initial explosive charge and a detonating cord leading into this tube and firmly crimped into it. Between the end of the detonating cord and the initial charge is an amplifying or intensifying charge. The amplifier charge may be seated directly at the end of the cord in intimate contact with the powder core of the detonating cord. Increased reliability of detonation, partic after long storage times for which moisture-excluding casings or the like are not absolutely effective.

Description

The invention relates to a detonator, in particular

for the ignition of pioneer explosives, consisting of one with an initial explosive-filled metal or plastic sleeve, in the empty space a powder fuse is inserted and strangled to the capsule.

Such explosives are used in commercial blasting technology and in the military sector for detonating explosive charges. With help different Long fuses, the ignition process can be manipulated in terms of time In the commercial When detonating explosive charges, explosive technology has the same meaning as the detonating cord in;) ü%: - most of the time lost more and more importance. In contrast, she has within military blasting and ignition technology has become increasingly important, e.g. in the ignition of pioneer explosives, such as the explosive devices D 38, thermite incendiary devices or thermal disruption devices or detonators DM 111 or DM 121 and others more.

The functionally reliable one therefore wins, especially in the military sector Connection between fuse and detonator is of particular importance. Therefore, the Connection of fuse and detonator an extraordinary degree of reliability also required under unfavorable operating conditions, e.g. in greater water depths.

It has become known that under certain conditions, in particular after a long period of storage of the explosive or detonating agent, under unfavorable external conditions Conditions Failure in the fuse ignition.

are kicking. Such misfires have also occurred if, with the help of a hollow body slipped over the end of the fuse, a moisture-proof Connection of fuse and detonator was assured. Especially when the If the fuse does not sit tightly on the inner cap of the detonator, it will fail to be expected. There are also deficiencies in progress, esp.

not entirely in the series production of these detonators and fuses to exclude.

The invention has therefore set itself the task of the ignition of Detonators with detonating cord even in the event of manufacturing defects, transport damage, etc. to ensure without this making the automated creation of such explosives difficult will.

The object is achieved in that between the At the end of the fuse and the initial charge of the detonator a booster charge is arranged.

This ensures reliable ignition of the Warfare agents or explosives, e.g.

a detonator by a fuse, as the pilot jet the fuse through the transformer or. Booster charge is so amplified that the desired initial effect is reliably achieved. Misfires are excluded, even if such explosives or detonators are used for a long time and under unfavorable conditions Conditions to be stored. On the basis of using the transformer or amplifier charge The exact arrangement of the fuse ends significantly increases the reliability of ignition compared to the initial charge, it is no longer as important as before. Therefore such explosives or detonators can also be produced in a largely automated manner i.e., in particular, inserting the end of the Zünischnurne in the detonator can be done in vending machines.

The functionality is ensured according to the invention or increased that the booster charge is stored directly at the end of the fuse is and has intimate contact with the Fulversoule. It is even possible to that the booster charge through the plastic jacket closing off the fuse is held.

This will ensure that the fuse will definitely the booster charge ignites, so that also subsequently the explosive charge for ignition comes.

The functionally safe arrangement of the booster charge is thereby ensures that as proposed according to the invention, the booster charge on the bottom of a fiohikörpers which can be introduced into the detonator and which is pot-shaped and the bottom of which has a bottom opening, is stored. Such hollow bodies, which are usually prefabricated by machine, are used in particular for sealing the detonator. You can take the booster charge without additional aids be used. But it is also conceivable that they are equipped with guides, so d.ass the amplifier; in any case in the desired position on the Arrives at the bottom of the hollow body and is fixed there.

Introducing and positioning the booster charge on the ground of the hollow body is particularly difficult and easy to carry out when the Ve] stronger charge has a nose on the surface facing the bottom opening, whose diameter corresponds to that of the bottom opening and slightly exceeds it. In order to For example, the booster charge can be inserted exactly into the opening in the floor and so convenient be centered and fixed.

With such an arrangement, the booster charge is centered the opening of the inner cap opposite, so that the fuse from the fuse through the Booster charge transferred ignition jet exactly to the explosive charge or the opening of the inner cone is aligned and must meet centrally.

The booster charge consists of substances or mixtures of substances that ensure that the charge has the required reaction temperature and transmission distance achieved.

It is useful if the booster charge is a thermitsatz a zircon, barium nitrate, barium peroxide mixture or another similarly bright one There is a substance or mixture of substances that generates combustion temperatures.

The booster charge can be introduced into the hollow body in a particularly simple manner if they are pressed into tablet form, possibly with the addition of binders Molded body is. Such tablets can be manufactured in any desired shape and positioned at the bottom of the hollow body.

The effect of the booster charge is thereby ensured according to the invention or improved that the binders are nitrocellulose-containing substances that take part in the chemical reaction. Such binders harden later, for example and are therefore particularly suitable for the production of such shaped bodies. In this way, moldings are achieved with defined dimensions that are in the provided shape can be positioned at the end of the fuse.

Suitable molded bodies are also those which, according to the invention, are mixed in fine-grained and finely divided thermoplastics are extruded. By voting The granulation process to the extrusion speed can be charged Manufacture of any length, which are then subdivided into corresponding shapes can.

According to the invention, the detonator described ensures a safe one Ignition of the weapon or disintegrant even after a long period of storage under unfavorable conditions external conditions as well as minor manufacturing defects or damage that caused during transport. In addition, the production is such Disintegrants less risky in terms of increased ignition security and accordingly easier.

The invention is illustrated below with reference to one in the drawing Embodiment explained in more detail.

It shows: Figo 1 a section through a detonator with fuse, 2 shows a longitudinal section through a hollow body with an inserted booster charge Fig. 1 shows a detonator 10 with inserted fuse 1 and completed Strangulation 8.

The figure shows that only the Zünischnurmantel due to the strangulation 8 2 as well as the hemp insert 4 can be influenced slightly. The powder soul, on the other hand remains unaffected, as it is through the jacket 2 and the hemp insert 4 accordingly is protected. The booster charge 30 is positioned at the end 3 of the fuse 1, which is in the form of a tablet as shown. The booster charge 30 is on the Bottom 25 of the hollow body 20, in such a way that most of the booster charge 30 covers the bottom opening 22 of the hollow body 20. The illustration shows that the ignition jet transmitted by the fuse 1 through the booster charge 30 exactly on the explosive charge 15 or where the opening of the inner groove 11 is aligned and this must meet centrally. The bottom opening 22 is located in the jacket 21 of the hollow body 20 immediately above the Innenhütohen 11, which is filled with explosives part of the Detonator 10 from the space provided for receiving the fuse 1 the detonator 10 separates. At the upper edge 23 of the hollow body 20 is located the approach 24, which ensures the most uniform and reliable positioning of the Detonating cord 1 with booster charge 30 on the one hand opposite inner cap 11 on the other hand should ensure. Between the edge of the capsule 16 and the inner cap 11 are there are usually four constrictions 13 on the sleeve jacket, which Änwärgung 8 represent, through which a tight and permanent connection of fuse 1, hollow body 20 and. Detonator 10 is reached.

The space between the detonator bed 14 and inner cap 11 is with of the initial charge 15 filled out.

FIG. 2 shows a hollow body 20 in which a booster charge 30 is inserted with a nose 31.

With the help of the nose 31 a precise positioning of the booster charge is achieved 30 reached centrally above the bottom opening 22. The booster charge 30, whether with or without a nose 31, can have the tablet shape shown. Likewise can be used as a booster charge 30 serving substances or mixtures of substances with a high combustion temperature in loose Fill in the e.g.

a hollow body closed by a membrane. As a rule, however, such ignition means are easier to handle and safer to manipulate @ when the booster charge 30 is available in a prefabricated form and is introduced as a solid body upon completion of the ignition means. It is important that the booster charge 30 always has the closest contact with the powder soul 5 the fuse 1 has.

Claims (8)

Detonator, especially for the ignition of pioneering explosives P a t e n t a n s p r ü c h e ½) Detonator, especially for the ignition of Pioneering explosives, consisting of one filled with an initial explosive Metal or plastic sleeve with a powder fuse inserted into the empty space and is tightly crammed with the capsule, d u r 0 h e k e n n n z e i c h -n e t, that between the end (3) of the fuse (1) and the initial charge (15) of the detonator (10) a booster charge (30) is arranged, 2. detonator according to claim 1, d a d u r c h g e -k e n n n z e i c h n e t that the booster charge (30) immediately stored at the end (3) of the fuse (1) and in intimate contact with the powder core (5) the fuse has. 3. Detonator according to claim 1 and claim 2, d a -d u r c h g e k e n nn z e i h n e t that the booster charge (30) in the bottom (25) of one in the Blasting capsule (10) insertable hollow body (20) which is cup-shaped and the bottom of which has a bottom opening (22) 4. Detonator according to claims 1 to 3, d u r c h g e n n n z e i c h n e t that the booster charge (30) on the surface facing the bottom opening (22) has a nose (31) whose Diameter that corresponds to or slightly exceeds the base opening. 5. Detonator according to claim 1, d a d u r c h g e -k e n n z e i c h n e t that the booster charge (30) is a thermite set made of a zirconium, barium nitrate, Barium peroxide mixture or another similarly high combustion temperature generating Substance or mixture of substances. 6. Detonator according to claim 1, d a d u r c h g e -k e n n z e i c h n e t that the booster charge (30) is in tablet form, possibly with the addition is molded body pressed by binders. 7. detonator according to claim 1 and claim 6, d a d u r c h g e it is not indicated that the binders are substances containing nitrocellulose, which take part in the chemical reaction. 8. Detonator according to claim 1 and claim 6, d a d u r c h g e it is not indicated that the booster charge (30) is mixed with finest grains and finely divided thermoplastics is extruded.