Initiating explosive device pharmaceutical composition, preparation method thereof and application of initiating explosive device pharmaceutical composition in nail shooting pill

Abstract

The invention discloses an initiating explosive device pharmaceutical composition as well as a preparation method and application thereof, the sensitivity of 5-aminotetrazole nitrate contained in the initiating explosive device pharmaceutical composition is low (comparable to TNT), and especially the electrostatic sensitivity is low. Meanwhile, the sensitizer is non-energetic inorganic matters such as glass powder. The safety of initiating explosive devices such as nail shooting pills containing the initiating explosive device pharmaceutical composition provided by the invention in production, transportation, use and storage can be greatly improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of initiating explosive products, and particularly relates to an initiating explosive composition, a preparation method thereof and application of the initiating explosive composition in a nail shooting bomb. BACKGROUND

[0002] The nail shooting bomb belongs to a nail shooting fastener product, and is widely applied to the industries of building, decoration, factory and shipbuilding. The nail shooting bomb is mainly composed of a shell (a copper shell, a plastic shell, etc.), a firing explosive, a propellant, a straight nail and a matched fixing sheet, etc. At present, the initiating explosive used in the nail shooting bomb on the market is mostly a multi-component mixed explosive such as a single-hit explosive system, a double-base explosive system, a multi-base explosive system, lead stefanate and DDNP. As the energy power part of the nail shooting bomb, the initiating explosive has the advantages of good ignition ability, large output energy, high firing reliability and mature process, etc.

[0003] However, the above-mentioned initiating explosive has the disadvantages of high electrostatic sensitivity, high environmental pollution, complex mixed explosive granulation and multiple explosive charging and pressing processes. Therefore, developing a green and environmentally friendly, safe and reliable, and simple process initiating explosive for the nail shooting bomb has a far-reaching significance for the iterative development of the nail shooting fastener. SUMMARY

[0004] 1. Problem to be solved

[0005] In view of the problems of easy explosion and high pollution of the initiating explosive composition used for assembling the above-mentioned initiating explosive, one of the purposes of the present application is to provide an initiating explosive composition.

[0006] Meanwhile, the present application also provides the application of the initiating explosive composition. The initiating explosive can be used as a firing explosive and a propellant.

[0007] In view of the problems of great danger and high accident rate of the above-mentioned initiating explosive in the manufacturing, storage and transportation processes, the second purpose of the present application is to provide an initiating explosive and a preparation method thereof.

[0008] 2. Technical scheme

[0009] In order to solve the above-mentioned problems, the technical scheme adopted by the present application is as follows:

[0010] According to one of the purposes of the present application, the present application provides an initiating explosive composition, which comprises:

[0011] a power active ingredient and a sensitizer;

[0012] The power active ingredient is 5-amino tetrazolium nitrate.

[0013] The 5-amino tetrazole nitrate is added in an amount of 55-95 wt% based on the total mass of the 5-amino tetrazole nitrate and the sensitizer, and the balance is the sensitizer.

[0014] For example, the 5-amino tetrazole nitrate is added in an amount of 70 wt%, and the sensitizer is added in an amount of 30 wt%.

[0015] The pyrotechnic composition according to any embodiment of the first aspect of the present application, wherein the particle size of the 5-amino tetrazole nitrate is ≤ 600 microns.

[0016] The pyrotechnic composition according to any embodiment of the first aspect of the present application, wherein the particle size of the 5-amino tetrazole nitrate is 50-600 microns.

[0017] The pyrotechnic composition according to any embodiment of the first aspect of the present application, wherein the particle size of the 5-amino tetrazole nitrate is any value taken from any one of the following ranges: 50-600 microns, 50-580 microns, 50-550 microns, 50-520 microns, 50-500 microns, 50-480 microns, 50-450 microns, 50-420 microns, 50-400 microns, 50-380 microns, 50-350 microns, 50-320 microns, 50-300 microns, 50-280 microns, 50-250 microns, 50-220 microns, 50-200 microns, 50-180 microns;

[0018] 80-600 microns, 80-580 microns, 80-550 microns, 80-520 microns, 80-500 microns, 80-480 microns, 80-450 microns, 80-420 microns, 80-400 microns, 80-380 microns, 80-350 microns, 80-320 microns, 80-300 microns, 80-280 microns, 80-250 microns, 80-220 microns, 80-200 microns, 80-180 microns;

[0019] 150-600 microns, 150-580 microns, 150-550 microns, 150-520 microns, 150-500 microns, 150-480 microns, 150-450 microns, 150-420 microns, 150-400 microns, 150-380 microns, 150-350 microns, 150-320 microns, 150-300 microns, 150-280 microns, 150-250 microns, 150-220 microns, 150-200 microns, 150-180 microns.

[0020] The pyrotechnic composition according to any embodiment of the first aspect of the present application, the 5-aminotetrazole nitrate can pass through a sieve with a mesh number taken from any of the following ranges: 325-27 mesh, 325-32 mesh, 325-35 mesh, 325-40 mesh, 325-60 mesh, 325-80 mesh, 325-100 mesh, 325-110 mesh, 325-180 mesh, 325-200 mesh, 325-250 mesh, 325-270 mesh;

[0021] The pyrotechnic composition according to any embodiment of the first aspect of the present application, the 5-aminotetrazole nitrate can pass through a sieve with a mesh number taken from any of the following ranges: 325-27 mesh, 325-32 mesh, 325-35 mesh, 325-40 mesh, 325-60 mesh, 325-80 mesh, 325-100 mesh, 325-110 mesh, 325-180 mesh, 325-200 mesh, 325-250 mesh, 325-270 mesh;

[0022] 270-35 mesh, 270-40 mesh, 270-60 mesh, 270-80 mesh, 270-100 mesh, 270-110 mesh, 270-180 mesh, 270-200 mesh, 270-250 mesh;

[0023] 250-35 mesh, 250-40 mesh, 250-60 mesh, 250-80 mesh, 250-100 mesh, 250-110 mesh, 250-180 mesh, 250-200 mesh;

[0024] 200-35 mesh, 200-40 mesh, 200-60 mesh, 200-80 mesh, 200-100 mesh, 200-110 mesh, 200-180 mesh;

[0025] 180-35 mesh, 180-40 mesh, 180-60 mesh, 180-80 mesh, 180-100 mesh, 180-110 mesh;

[0026] 110-35 mesh, 110-40 mesh, 110-60 mesh, 110-80 mesh, 110-100 mesh.

[0027] The "particle size range of 5-aminotetrazole nitrate" as described herein is determined based on the practical research of the application of 5-aminotetrazole nitrate as the power active ingredient of the propellant for shot nails. The "particle size range of 5-aminotetrazole nitrate" can achieve the uniformity of the mixed propellant, is the basic guarantee of impact sensitivity and firing reliability, and can maximize the release of output capacity. Based on this, the particle size of the 5-aminotetrazole nitrate is preferably 80-300 microns, and most preferably 120-180 microns; or the mesh number of the sieve through which the 5-aminotetrazole nitrate can pass is preferably 180-60 mesh, and most preferably 110-80 mesh.

[0028] The pyrotechnic composition according to any embodiment of the first aspect of the present application, the particle size of the sensitizer is 50-250 microns.

[0029] According to any one of the embodiments of the first aspect of the present application, the particle size of the sensitizer can be any value taken from any one of the following numerical ranges: 50-250 microns, 50-220 microns, 50-200 microns, 50-180 microns, 50-150 microns.

[0030] According to any one of the embodiments of the first aspect of the present application, the particle size of the sensitizer is preferably 50-180 microns, and most preferably 50-150 microns.

[0031] According to any one of the embodiments of the first aspect of the present application, the mesh number of the screen through which the sensitizer can pass can be any value taken from any one of the following numerical ranges: 270-60 mesh, 270-65 mesh, 270-80 mesh, 270-100 mesh, 270-110 mesh.

[0032] According to any one of the embodiments of the first aspect of the present application, the mesh number of the screen through which the sensitizer can pass is preferably 270-80 mesh, and most preferably 270-110 mesh.

[0033] The "particle size range of the sensitizer" as described herein, on the one hand, is a further guarantee for the uniformity of the mixed medicament, the impact sensitivity, and the firing reliability and maximum release output capacity, which can be achieved in cooperation with the "particle size range of the 5-amino tetrazole nitrate"; on the other hand, it is to avoid too large a particle size gap with the "5-amino tetrazole nitrate" as the power active ingredient, because it has been found in research that when there is too large a difference between the "particle size of the sensitizer" and the "particle size of the 5-amino tetrazole nitrate", the sensitizer will exist in the form of "coating" on the surface of the 5-amino tetrazole nitrate, which will affect the firing reliability of the pyrotechnic medicament composition, etc.; in addition, although the larger the particle size of the sensitizer is, the higher the safety is, but too large a particle size will affect the impact sensitivity and the firing reliability, and too small a particle size of the sensitizer will affect the safety. Based on this, the particle size of the sensitizer is preferably 50-180 microns, and most preferably 50-150 microns; or the mesh number of the screen through which the sensitizer can pass is preferably 80-300 mesh, and most preferably 100-300 mesh.

[0034] According to any one of the embodiments of the first aspect of the present application, the sensitizer comprises any one or two or more of glass powder, quartz sand, white corundum, and diamond sand.

[0035] According to any one of the embodiments of the first aspect of the present application, the pyrotechnic medicament for a nail shooting cartridge further comprises a stabilizer and / or a medium stabilizer.

[0036] The propellant for a nail shooting bullet according to any one of the embodiments of the first aspect of the present application, wherein the amount of the stabilizer added is ≤ 3 wt% (meaning less than or equal to 3 wt%) based on the total weight of the 5-amino tetrazolium nitrate and the sensitizer.

[0037] The propellant for a nail shooting bullet according to any one of the embodiments of the first aspect of the present application, wherein the amount of the stabilizer added is preferably 0.1 to 3 wt%, 0.1 to 2.5 wt%, 0.1 to 2 wt%, 0.1 to 1.5 wt%, or 0.1 to 1 wt% in order.

[0038] The propellant for a nail shooting bullet according to any one of the embodiments of the first aspect of the present application, wherein the amount of the stabilizer added is preferably 0.1 to 3 wt%, 0.1 to 2.5 wt%, 0.1 to 2 wt%, 0.1 to 1.5 wt%, or 0.1 to 1 wt% in order.

[0039] The "amount of the stabilizer added based on the total weight of the 5-amino tetrazolium nitrate and the sensitizer" as described herein is exemplified as follows: if the amount of the 5-amino tetrazolium nitrate is 70 wt%, the amount of the sensitizer is 30 wt%, the amount of the stabilizer is 1 wt%, and the amount of the moderator is 1 wt%, the amounts are understood as follows in terms of grams:

[0040] The amount of the 5-amino tetrazolium nitrate is 70 grams, the amount of the sensitizer is 30 grams, the amount of the stabilizer is 1 gram, and the amount of the moderator is 1 gram.

[0041] The propellant for a nail shooting bullet according to any one of the embodiments of the first aspect of the present application, wherein the stabilizer includes an aromatic amine, a phenol, or a derivative thereof, and the like, and the aromatic amine can be any one or two or more of, for example, diphenylamine, methyl-p-nitroaniline, nitro-diphenylamine, and the like.

[0042] The propellant for a nail shooting bullet according to any one of the embodiments of the first aspect of the present application, wherein the moderator includes an aromatic urea or a derivative thereof, and the like, and is any one or two or more of, for example, dimethyl diphenyl urea, diethyl diphenyl urea, and the like.

[0043] Based on the first object of the present application and any one of the above-described technical solutions, a second object of the present application is to provide the use of the propellant for a nail shooting bullet, wherein the propellant is used for a pyrotechnic composition.

[0044] The use of the propellant for a nail shooting bullet according to any one of the embodiments of the second aspect of the present application, wherein the propellant is used as a primer.

[0045] Use of the pyrotechnic composition according to any one of the embodiments of the second aspect of the present application, as a propellant;

[0046] Use of the pyrotechnic composition according to any one of the embodiments of the second aspect of the present application, in a nail gun cartridge.

[0047] Use of the pyrotechnic composition according to any one of the embodiments of the second aspect of the present application, in a nail gun cartridge. 3 .

[0048] Use of the pyrotechnic composition according to any one of the embodiments of the second aspect of the present application, in a nail gun cartridge. 3 .

[0049] Use of the pyrotechnic composition according to any one of the embodiments of the second aspect of the present application, in a nail gun cartridge. 3 3 .

[0050] Use of the pyrotechnic composition according to any one of the embodiments of the second aspect of the present application, in a nail gun cartridge. 3 3 .

[0051] In accordance with the third object of the present application, the third aspect of the present application provides a pyrotechnic device comprising the pyrotechnic composition according to any one of the embodiments of the first aspect of the present application.

[0052] The pyrotechnic device according to any one of the embodiments of the third aspect of the present application is a nail gun cartridge.

[0053] The pyrotechnic device according to any one of the embodiments of the third aspect of the present application has a charge density of the composition in the shell of the pyrotechnic device of greater than or equal to 1.0 g / cm 3 ; preferably the charge density of the composition is 1.0 g / cm 3 3 .

[0054] In accordance with the fourth object of the present application, the fourth aspect of the present application provides a method for preparing a pyrotechnic device, comprising the steps of:

[0055] ​​​S1. preparing a mixed pyrotechnic composition;

[0056] S2. loading the pyrotechnic composition into a shell of a pyrotechnic device;

[0057] S3. assembling the pyrotechnic device after the pressing process; wherein the loading density of the pyrotechnic composition in the pyrotechnic device is greater than or equal to 1.0 g / cm 3 ;

[0058] Preferably, the filling density of the composition is 1.0 g / cm 3 ~ 1.8 g / cm 3 .

[0059] The method for preparing the pyrotechnic device according to any embodiment of the fourth aspect of the present application, wherein the pyrotechnic device is a nail shooting bullet.

[0060] Advantages

[0061] The pyrotechnic composition provided by the present application has the following advantages:

[0062] (1) The pyrotechnic composition provided by the present application is green and environmentally friendly, and the raw materials used are green and environmentally friendly. The production process does not produce heavy metals, chlorine and other polluting compounds, and is environmentally friendly to water sources and soil.

[0063] (2) The pyrotechnic composition provided by the present application is safe and insensitive. The 5-amino tetrazole nitrate used has low sensitivity (comparable to TNT), especially low electrostatic sensitivity. At the same time, the sensitizer is a non-energy-containing inorganic material such as glass powder. The above can greatly improve the safety of the nail shooting bullet containing the pyrotechnic composition provided by the present application in production, transportation, use and storage.

[0064] (3) The pyrotechnic composition provided by the present application has high energy. After the 5-amino tetrazole nitrate is fired, it can release more gas and has strong external working ability.

[0065] (4) The pyrotechnic composition provided by the present application has good moisture resistance. 5-amino tetrazole nitrate and sensitizer are non-hygroscopic materials and are not easy to deliquesce, and have good long-term storage properties.

[0066] (5) The nail shooting bullet prepared by using the pyrotechnic composition provided by the present application has a simple process. The pyrotechnic composition does not need to be granulated during the preparation process. After the components are mixed, the nail shooting bullet does not need pyrotechnic composition, and the projectile charging and pressing can be completed at one time.

[0067] (6) The application provides the application of the explosive agent composition in the nail shooting bullet, wherein the explosive agent composition has the functions of both the propellant and the explosive agent, can release more gas after being fired, has strong external function, and has good firing sensitivity, ignition energy and output capacity. BRIEF DESCRIPTION OF DRAWINGS

[0068] Figure 1 The test graph of the embodiment 2 of the application is shown. DETAILED DESCRIPTION

[0069] The present disclosure can be more easily understood by reference to the following description in conjunction with the accompanying drawings and examples, which constitute a part of this disclosure. It is to be understood that the present disclosure is not limited to the specific products, methods, conditions or parameters described and / or shown herein. Further, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting, unless otherwise specified.

[0070] It should also be understood that, for clarity, certain features of the disclosure can be described in the context of separate embodiments in this document, but can also be provided in combination with each other in a single embodiment. That is, unless explicitly incompatible or specifically excluded, each separate embodiment is considered to be combinable with any other embodiment, and such combinations are considered to represent another different embodiment. Conversely, various features of the disclosure described in the context of a single embodiment can also be provided separately or in any subcombination, for the sake of brevity. Finally, although a particular embodiment can be described as part of a series of steps or part of a more general structure, each step or substructure can itself be considered an independent embodiment.

[0071] Unless otherwise stated, it is to be understood that each individual element in a list and each combination of individual elements in the list is to be interpreted as a different embodiment. For example, a list of embodiments representing“A, B, or C” is to be interpreted as including the embodiments“A,”“B,”“C,”“A or B,”“A or C,”“B or C,” or“A, B, or C.”

[0072] In this disclosure, the singular forms“a,”“an,” and“the” include their respective plural referents and refer to at least one of the specific number value, unless the context clearly dictates otherwise. Thus, for example, reference to“a substance” is a reference to at least one of such substances and equivalents thereof.

[0073] Terms including ordinal numbers such as "first" and "second" can be used to explain various components or fluids, but the components, fluids are not limited by the terms. Thus, the terms are used only to distinguish the component / fluid from another component / fluid without departing from the teachings of the present disclosure.

[0074] When items are described using conjunctive language such as "and / or", the description should be understood to include any one of the associated listed items, as well as all combinations of one or more of the items; for example, A and / or B should be interpreted to include embodiments where "A" is included but "B" is not, embodiments where "B" is included but "A" is not, and embodiments where both "A" and "B" are included.

[0075] In general, the use of the term "about" indicates that an approximation can be made depending on the desired characteristics obtained by the disclosed subject matter, and will be interpreted based on functionality in a context-dependent manner. Thus, a person of ordinary skill in the art will be able to interpret a certain degree of difference on a case-by-case basis. In some cases, the number of significant digits used in expressing a particular value can be representative of the degree of precision to which the term "about" allows for variation. In other cases, a range of values in a series of values can be used to determine the range of variation allowed by the term "about". Further, all ranges in the present disclosure are inclusive and combinable, and the mention of a value recited in a range includes each value within the range.

[0076] Throughout the specification of the present application file, when it is recorded that a certain part "includes" a certain constituent element, unless there is an explicit recitation to the contrary, it does not mean that other constituent elements are excluded, but it means that other constituent elements can also be included.

[0077] Throughout the specification of the present application file, the conversion of the mesh number of the screen to the particle size is referred to the American standard.

[0078] Throughout the specification of the present application file, when it is recorded that a certain step is "above" or "before" other steps, it not only includes the case where a certain step has a direct time sequence relationship with other steps, but also includes the same right as the case where the time sequence of the order of two steps such as a mixing step after each step is changed.

[0079] Throughout the specification of the present application file, when it is recorded as "… according to any embodiment of the … aspect of the … object of the present invention", unless there is an explicit recitation to the contrary, it does not mean that the constituent elements appearing before and after it are excluded with respect to the described scheme, but it means that other constituent elements can also be included.

[0080] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used herein have their ordinary meaning to a person of ordinary skill in the art and / or any and all combinations of the listed items include.

[0081] In order to make the technical solutions and advantages of the present application, the technical solutions in the embodiments of the present application will be described in detail below.

[0082] Embodiment 1

[0083] This embodiment provides a nail shooting bomb according to the following steps:

[0084] S1. Prepare a mixed processing pyrotechnic composition as a propellant;

[0085] S2. Load the propellant into the shell of the nail shooting bomb;

[0086] S3. Loosely load the propellant into the nail shooting bomb charging mold, and press the propellant into the shell of the nail shooting bomb by a press machine to assemble the nail shooting bomb.

[0087] The pyrotechnic composition includes a power active ingredient, a sensitizer, a stabilizer, and a moderator. When calculating the amount, the mass of the power active ingredient 5-amino tetrazole nitrate and the sensitizer is taken as 100wt%; the stabilizer is added as an additional component, and its addition amount is calculated based on the total weight of the mass of the 5-amino tetrazole nitrate and the sensitizer; and the moderator is added as an additional component, and its addition amount is calculated based on the total weight of the mass of the 5-amino tetrazole nitrate and the sensitizer.

[0088] [Pyrotechnic composition sample 1 as propellant]:

[0089] The particle size of the 5-amino tetrazole nitrate used is selected to be 150um, the sensitizer is selected to be 125um glass powder, the stabilizer is selected to be diphenylamine, and the moderator is selected to be dimethyl diphenyl urea. According to the mass ratio of 5-amino tetrazole nitrate 80%, glass powder 20%, additional stabilizer 0.1%, and moderator 0.1%, 5-amino tetrazole nitrate with a total amount of 80g, glass powder with a total amount of 20g, diphenylamine with a total amount of 0.1g, and dimethyl diphenyl urea with a total amount of 0.1g are weighed, and then mixed uniformly.

[0090] The nail shooting bomb numbered nail shooting bomb-1 is assembled with the pyrotechnic composition.

[0091] [Pyrotechnic composition sample 2 as propellant]:

[0092] The particle size of the 5-amino tetrazole nitrate used is 150 um, the sensitizing agent used is 100 um glass powder, the stabilizer used is diphenylamine, and the centralizer used is dimethyl diphenyl urea. According to the mass ratio of 5-amino tetrazole nitrate 80%, glass powder 20%, and additional stabilizer 0.1%, centralizer 0.1%, 5-amino tetrazole nitrate 80 g, glass powder 20 g, diphenylamine 0.1 g, and dimethyl diphenyl urea 0.1 g are weighed, and then mixed uniformly.

[0093] The shot bullet numbered shot bullet-2 is assembled with the pyrotechnic agent composition substance.

[0094] [Pyrotechnic agent composition sample 3 as propellant]:

[0095] The particle size of the 5-amino tetrazole nitrate used is 150 um, the sensitizing agent used is 100 um glass powder, and the stabilizer used is diphenylamine. According to the mass ratio of 5-amino tetrazole nitrate 80%, glass powder 20%, and additional stabilizer 0.1%, 5-amino tetrazole nitrate 80 g, glass powder 20 g, and diphenylamine 0.1 g are weighed, and then mixed uniformly.

[0096] The shot bullet numbered shot bullet-3 is assembled with the pyrotechnic agent composition substance.

[0097] [Pyrotechnic agent composition sample 4 as propellant]:

[0098] The particle size of the 5-amino tetrazole nitrate used is 150 um, the sensitizing agent used is 100 um glass powder, and the centralizer used is dimethyl diphenyl urea. According to the mass ratio of 5-amino tetrazole nitrate 80%, glass powder 20%, and additional centralizer 0.1%, 5-amino tetrazole nitrate 80 g, glass powder 20 g, and dimethyl diphenyl urea 0.1 g are weighed, and then mixed uniformly.

[0099] The shot bullet numbered shot bullet-4 is assembled with the pyrotechnic agent composition substance.

[0100] [Pyrotechnic agent composition sample 5 as propellant]:

[0101] The particle size of the 5-amino tetrazole nitrate used is 150 um, and the sensitizing agent used is 100 um glass powder. According to the mass ratio of 5-amino tetrazole nitrate 80% and glass powder 20%, 5-amino tetrazole nitrate 80 g and glass powder 20 g are weighed, and then mixed uniformly.

[0102] The shot bullet numbered shot bullet-5 is assembled with the pyrotechnic agent composition substance.

[0103] [Pyrotechnic agent composition sample 6 as propellant]:

[0104] The particle size of the 5-aminotetrazole nitrate used is 150 um, and the sensitizer used is 75 um glass powder. According to the mass ratio of 5-aminotetrazole nitrate 80%, glass powder 20%, 80 g of 5-aminotetrazole nitrate and 20 g of glass powder are weighed, and then mixed uniformly.

[0105] The shot shell numbered shot shell-6 is assembled with the pyrotechnic agent composition substance.

[0106] [Pyrotechnic agent composition sample 7 as propellant]:

[0107] The particle size of the 5-aminotetrazole nitrate used is 150 um, and the sensitizer used is 75 um glass powder. According to the mass ratio of 5-aminotetrazole nitrate 80%, glass powder 20%, 80 g of 5-aminotetrazole nitrate and 20 g of glass powder are weighed, and then mixed uniformly.

[0108] The shot shell numbered shot shell-7 is assembled with the pyrotechnic agent composition substance.

[0109] [Pyrotechnic agent composition sample 8 as propellant]:

[0110] The particle size of the 5-aminotetrazole nitrate used is 150 um, and the sensitizer used is 75 um glass powder. According to the mass ratio of 5-aminotetrazole nitrate 80%, glass powder 20%, 80 g of 5-aminotetrazole nitrate and 20 g of glass powder are weighed, and then mixed uniformly.

[0111] The shot shell numbered shot shell-8 is assembled with the pyrotechnic agent composition substance.

[0112] [Pyrotechnic agent composition sample 9 as propellant]:

[0113] The particle size of the 5-aminotetrazole nitrate used is 150 um, and the sensitizer used is 75 um glass powder. According to the mass ratio of 5-aminotetrazole nitrate 80%, glass powder 20%, 80 g of 5-aminotetrazole nitrate and 20 g of glass powder are weighed, and then mixed uniformly.

[0114] The shot shell numbered shot shell-9 is assembled with the pyrotechnic agent composition substance.

[0115] [Pyrotechnic agent composition sample 10 as propellant]:

[0116] The particle size of the 5-aminotetrazole nitrate used is 150 um, and the sensitizer used is 75 um glass powder. According to the mass ratio of 5-aminotetrazole nitrate 80%, glass powder 20%, 80 g of 5-aminotetrazole nitrate and 20 g of glass powder are weighed, and then mixed uniformly.

[0117] The nail shooting projectile numbered as the nail shooting projectile-10 is assembled with the firework agent composition substance.

[0118] [Firework agent composition sample 11 as a propellant]

[0119] The sample 1 of the example 1 is basically the same, except that the particle size of the 5-amino tetrazole nitrate used is selected as 600 um.

[0120] The nail shooting projectile numbered as the nail shooting projectile-11 is assembled with the firework agent composition substance.

[0121] [Firework agent composition sample 12 as a propellant]

[0122] The sample 1 of the example 1 is basically the same, except that the particle size of the 5-amino tetrazole nitrate used is selected as 400 um.

[0123] The nail shooting projectile numbered as the nail shooting projectile-12 is assembled with the firework agent composition substance.

[0124] [Firework agent composition sample 13 as a propellant]

[0125] The sample 1 of the example 1 is basically the same, except that the particle size of the 5-amino tetrazole nitrate used is selected as 250 um.

[0126] The nail shooting projectile numbered as the nail shooting projectile-13 is assembled with the firework agent composition substance.

[0127] [Firework agent composition sample 14 as a propellant]

[0128] The sample 1 of the example 1 is basically the same, except that the sensitizer is selected as 250 um white corundum.

[0129] The nail shooting projectile numbered as the nail shooting projectile-14 is assembled with the firework agent composition substance.

[0130] [Firework agent composition sample 15 as a propellant]

[0131] The sample 1 of the example 1 is basically the same, except that the sensitizer is selected as 200 um white corundum.

[0132] The nail shooting projectile numbered as the nail shooting projectile-15 is assembled with the firework agent composition substance.

[0133] [Firework agent composition sample 16 as a propellant]

[0134] The sample 1 is basically the same as that of Example 1, except that 65 g of 5-aminotetrazole nitrate, 35 g of glass powder, 0.1 g of diphenylamine, and 0.1 g of dimethyldiphenylurea are weighed in a total amount according to a mass ratio of 65% 5-aminotetrazole nitrate and 35% glass powder, 0.1% stabilizer, and 0.1% neutralizer, and then mixed until uniform.

[0135] The nail bullet equipped with this pyrotechnic agent combination is numbered as nail bullet-16.

[0136] [Explosive agent composition sample 17 as propellant]:

[0137] The sample 1 is basically the same as that of Example 1, except that 55 g of 5-aminotetrazole nitrate, 45 g of glass powder, 0.1 g of diphenylamine, and 0.1 g of dimethyldiphenylurea are weighed in a total amount according to a mass ratio of 55% 5-aminotetrazole nitrate and 45% glass powder, 0.1% stabilizer, and 0.1% neutralizer, and then mixed until uniform.

[0138] The nail bullet equipped with this pyrotechnic agent combination is numbered as nail bullet-17.

[0139] Example 2

[0140] like Figure 1 As shown, this test uses a nail gun as the firing device and a 6mm A3 steel plate as the penetration specimen. The steel plate firing test adheres to the GB / T 700-2006 standard for Q25 steel plates, which stipulates that the nail head should be pressed against the attachment to the substrate surface, and the attachment should not fall off. Twenty rounds of assembled nail guns were tested for firing rate and penetration rate.

[0141] The formulations of the various embodiments and their product properties are shown in Table 1.

[0142] Table 1 Samples and their properties

[0143]

[0144] As can be seen from the table above, the particle size of 5-aminotetrazole nitrate can affect the impact sensitivity and firing reliability of nail bullets. The nail bullets provided by the present invention, comprising 5-aminotetrazole nitrate with a particle size of 80 to 300 microns, particularly those with a particle size of 120 to 180 microns, demonstrated a 100% firing rate and a 100% penetration rate in firing tests against 6mm standard A3 steel plates. Furthermore, as can be seen in the accompanying drawings, the nail head pressed against the substrate surface without the attachment falling off, demonstrating that the nail bullets with the preferred formulation met the firing standards for Q25 steel plates specified in GB / T 700-2006 in steel plate tests.

[0145] Comparative Example 1

[0146] The method of providing the nail shooting bullet and the steps of the present comparative example are the same as those of Example 1.

[0147] [Pyrotechnic composition comparative sample D1 as a propellant]:

[0148] The sample is basically the same as sample 1 of Example 1, except that the particle size of the 5-amino tetrazole nitrate used is 650 um.

[0149] The nail shooting bullet equipped with the pyrotechnic composition is numbered as nail shooting bullet-D1.

[0150] [Pyrotechnic composition comparative sample D2 as a propellant]:

[0151] The sample is basically the same as sample 1 of Example 1, except that the sensitizer used is 300 um white corundum.

[0152] The nail shooting bullet equipped with the pyrotechnic composition is numbered as nail shooting bullet-D2.

[0153] [Pyrotechnic composition comparative sample D3 as a propellant]:

[0154] The sample is basically the same as sample 1 of Example 1, except that 5-amino tetrazole nitrate 50%, glass powder 50%, plus stabilizer 0.1%, and intermediate stabilizer 0.1% are weighed according to the mass ratio, and then 5-amino tetrazole nitrate 50 g, glass powder 50 g, diphenylamine 0.1 g, and dimethyl diphenyl urea 0.1 g are mixed to uniformity.

[0155] The nail shooting bullet equipped with the pyrotechnic composition is numbered as nail shooting bullet-D3.

[0156] [Pyrotechnic composition comparative sample D4 as a propellant]:

[0157] The sample is basically the same as sample 1 of Example 1, except that 5-amino tetrazole nitrate 45%, glass powder 55%, plus stabilizer 0.1%, and intermediate stabilizer 0.1% are weighed according to the mass ratio, and then 5-amino tetrazole nitrate 45 g, glass powder 55 g, diphenylamine 0.1 g, and dimethyl diphenyl urea 0.1 g are mixed to uniformity.

[0158] The nail shooting bullet equipped with the pyrotechnic composition is numbered as nail shooting bullet-D4.

[0159] Example 3

[0160] The test uses a nail gun as a firing device, and a 6mm A3 steel plate as a penetration sample. The steel plate shooting test is based on the shooting standard for Q25 steel plate in GB / T 700-2006, that is, the nail head should be pressed against the surface of the base body, and the accessory should not have a falling phenomenon. 20 assembled nail bullets are taken to test the firing rate and penetration rate.

[0161] The formulations of each embodiment and the performance of the products are shown in Table 2.

[0162] Table 2: Each comparative sample and its performance

[0163]

[0164] As can be seen from the above table, the particle size of the sensitizer can match the particle size of the 5-aminotetrazole nitrate to ensure the impact sensitivity and firing reliability, and further guarantee the maximum release output capacity. The larger the particle size of the sensitizer, the higher the safety, but as can be seen from the nail bullet-D2, the too large particle size of the sensitizer reduces the impact sensitivity and firing reliability. In addition, as can be seen from the nail bullet-D3 and the nail bullet-D4, the ratio of 5-aminotetrazole nitrate and sensitizer affects the impact sensitivity and the maximum release output capacity.

[0165] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pyrotechnic charge composition, characterized in that, The composition comprises: a power active ingredient and a sensitizer; The power active ingredient is 5-aminotetrazole nitrate; The 5-aminotetrazole nitrate is added in an amount of 55-95wt% based on the total weight of the 5-aminotetrazole nitrate and the sensitizer, and the rest is the sensitizer.

2. The initiating explosive composition of claim 1, wherein The particle size of the 5-aminotetrazole nitrate is ≤600 microns; And / or, The 5-aminotetrazole nitrate can pass through a sieve with a mesh size of not less than 28.

3. The initiating explosive composition of claim 1, wherein The particle size of the sensitizer is 50-250 microns; And / or, The sensitizer can pass through a sieve with a mesh size of 60-300.

4. The pyrotechnic composition according to any one of claims 1 to 3, wherein The composition further comprises: a stabilizer and / or a mediuming agent; The amount of the stabilizer added is ≤3wt% and the amount of the mediuming agent added is ≤3wt% based on the total weight of the 5-aminotetrazole nitrate and the sensitizer.

5. The pyrotechnic composition according to any one of claims 1 to 3, wherein The sensitizer comprises any one or two or more of glass powder, quartz sand, white corundum, and diamond sand.

6. The pyrotechnic composition according to any one of claims 1 to 3, wherein The stabilizer comprises any one or two or more of aromatic amines, phenol and its derivatives; And / or, The mediuming agent comprises any one or two or more of aromatic urea and its derivatives.

7. Use of the pyrotechnic composition according to any one of claims 1 to 6, characterized in that The composition is filled into a nail shooting cartridge case, the filling density of the composition is greater than or equal to 1.0 g / cm 3 .

8. The use of the pyrotechnic composition according to claim 7, characterized in that, The composition is filled in a nail shooting cartridge case, and the filling density of the composition is 1.0-1.8 g / cm 3 .

9. The use of the pyrotechnic composition according to claim 7, characterized in that, The composition has a bulk density of 1.0 g / cm 3 ~ 1.8 g / cm 3 .

10. The method of producing a pyrotechnic device according to any one of claims 7 to 9, characterized by, The method comprises the steps of: S1. Preparing a mixed processing pyrotechnic composition; S2. Loading the pyrotechnic composition into a shell of a nail shooting projectile; S3. After the pressing process, the assembled nail bomb is obtained; wherein the charge density of the pyrotechnic composition in the nail bomb is greater than or equal to 1.0 g / cm3 3 .

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