CN112985198A - Detonator conducting and detonating tube with insensitive characteristic - Google Patents
Detonator conducting and detonating tube with insensitive characteristic Download PDFInfo
- Publication number
- CN112985198A CN112985198A CN202110362822.4A CN202110362822A CN112985198A CN 112985198 A CN112985198 A CN 112985198A CN 202110362822 A CN202110362822 A CN 202110362822A CN 112985198 A CN112985198 A CN 112985198A
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- CN
- China
- Prior art keywords
- explosive
- charge
- liner
- cover
- tube shell
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- 239000002360 explosive Substances 0.000 claims abstract description 44
- 239000002184 metal Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 230000035939 shock Effects 0.000 claims description 2
- 238000005474 detonation Methods 0.000 abstract description 9
- 239000012634 fragment Substances 0.000 abstract description 7
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 238000004880 explosion Methods 0.000 description 9
- 238000002844 melting Methods 0.000 description 8
- 230000008018 melting Effects 0.000 description 8
- 230000000977 initiatory effect Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 229910001245 Sb alloy Inorganic materials 0.000 description 2
- 229910001128 Sn alloy Inorganic materials 0.000 description 2
- KHZAWAWPXXNLGB-UHFFFAOYSA-N [Bi].[Pb].[Sn] Chemical compound [Bi].[Pb].[Sn] KHZAWAWPXXNLGB-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000002140 antimony alloy Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229910000743 fusible alloy Inorganic materials 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000000586 desensitisation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000002889 sympathetic effect Effects 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C19/00—Details of fuzes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Air Bags (AREA)
Abstract
The invention discloses a detonator and detonating primer with insensitive characteristic, which comprises a cover plate, a tube shell, explosive charges and a shaped charge cover. The invention adopts the energy-gathering charge structure, has large axial detonation power during normal detonation action, and can realize axial accurate detonation. The liner is made of low-melting-point metal, and when the liner is influenced by accidental environments such as high-temperature baking, gunshot and fragment striking, the liner can be structurally damaged, so that the power of a fuse and a detonating tube is lost or greatly reduced, and the next-stage explosive element or explosive cannot be detonated. The next stage of explosive element or charge does not react or only undergoes a combustion reaction, thereby achieving the insensitive nature of the fuze.
Description
Technical Field
The invention belongs to the technical field of fuses, and particularly relates to a fuse detonating and detonating tube with an insensitive characteristic.
Background
The insensitive fuze technology is mainly used for fuzes with urgent requirements on insensitive characteristics, such as aviation and shipboard ammunition fuzes and the like, and is used for preventing the fuzes from detonating next-level explosive charge to cause serious personal and property loss when being influenced by accidental environments, such as high-temperature baking, gunshot and fragment striking. When the insensitive fuse is influenced by an unexpected environment, the power generated by the charging reaction of the insensitive fuse is greatly reduced compared with the power generated by normal initiation, even no reaction occurs, and the safety of a weapon system can be greatly improved.
When the in-line explosion conducting and explosion conducting tubes in the existing non-insensitive fuze explosion conducting sequence are influenced by the extreme environment of high-temperature baking such as fire and the like, the charged explosive in the explosion conducting and explosion conducting tubes is subjected to thermal decomposition and pressure accumulation, and the charged explosive is combusted to be detonated under the high-temperature and high-pressure environment. The power generated by the reaction is equivalent to that during normal initiation, and the next-stage charge can be directly initiated. When the explosion conducting and transmitting tube is affected by extreme impact environment such as gunshot, fragment striking and the like, the explosive in the explosion conducting and transmitting tube is easy to be affected by impact and directly detonated, the power generated by reaction is equivalent to that during normal initiation, and the next stage of explosive can be directly detonated.
Existing non-insensitive fuzes all have the risk of causing an accidental explosion of ammunition when suffering from the above extreme environmental impact, and even have the risk of causing a series of chain reactions by adjacent ammunition around the sympathetic explosion, seriously threatening the safety of weapon systems, carrying platforms and fighters.
Disclosure of Invention
The invention aims to provide a detonator and detonating tube (which can be used as a detonator or a detonating tube) with insensitive characteristics, so as to solve the problem that the detonator and detonating tube detonates the next-stage explosive element or charges under the influence of accidental environments such as high-temperature baking, gunshot and fragment striking.
The technical solution for realizing the purpose of the invention is as follows: a detonator and detonating primer with insensitive characteristic comprises a cover plate, a tube shell, an explosive charge and a shaped charge cover, wherein the tube shell is cylindrical, one end of the tube shell is closed and serves as an input end, the other end of the tube shell is opened and serves as an output end, and the cover plate is placed in the inner side of the input end before explosive pressing; the explosive charge and the shaped charge cover are sequentially arranged in the tube shell, the opening of the shaped charge cover faces to the output end and is pressed together with the explosive charge, and the explosive charge forms an energy-gathering socket under the constraint of the shaped charge cover and is coated by the shaped charge cover; the output end of the tube shell is closed after the explosive charge and the shaped charge liner are pressed.
The fuse guide and booster tube adopts an energy-gathering charge structure, and has large axial detonation power during normal detonation action, so that axial accurate detonation can be realized. The liner is made of low-melting-point metal, and when the liner is influenced by accidental environments such as high-temperature baking, gunshot and fragment striking, the liner can be structurally damaged, so that the power of a fuse and a detonating tube is lost or greatly reduced, and the next-stage explosive element cannot be detonated or charged. The next stage of explosive element or charge does not react or only undergoes a combustion reaction, thereby achieving the insensitive nature of the fuze.
Compared with the prior art, the invention has the beneficial effects that:
when the fuze-conducting and detonating tube with the insensitive characteristic is influenced by the unexpected environment such as high-temperature baking, gunshot and fragment striking, the shaped charge cover can be structurally damaged, so that the power of the fuze-conducting and detonating tube is lost or greatly reduced, and the problem of detonating the next-stage explosive element or charging under the influence of the unexpected environment can be solved only by the insensitive characteristic realized by the self structural design.
Drawings
Fig. 1 is a schematic diagram of a detonator with insensitive characteristic.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures. It should be understood that the specific examples described herein are intended to be illustrative only and are not intended to be limiting. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The detonating tube and the detonating booster are used as an in-line insensitive detonating element in a fuze detonating sequence, and if the explosive is replaced by more insensitive explosive for desensitization, the detonating completeness of the fuze can be directly influenced. The increase of the detonation difficulty of the pilot and booster tubes causes greater burden to the power of the upper-level detonation element, so that the explosion-proof safety of the fuze can be influenced, and the problems can be avoided by starting from the structural improvement to realize the insensitive characteristic.
With reference to fig. 1, the detonator with insensitive characteristic of the invention comprises a cover plate 1, a tube shell 2, an explosive charge 3 and a liner 4, wherein the tube shell 2 is cylindrical, one end of the tube shell is closed and used as an input end, the other end of the tube shell is opened and used as an output end, and the cover plate 1 is placed in the inner side of the input end before pressing the explosive. The explosive charge and the shaped charge cover 4 are sequentially arranged in the tube shell 1, the opening of the shaped charge cover 4 faces to the output end and is placed and pressed together with the explosive charge 3, and the explosive charge 3 forms an energy-gathering socket under the constraint of the shaped charge cover 4 and is coated by the shaped charge cover 4; the output end of the tube shell 2 is closed after the explosive charge 3 and the shaped charge cover 4 are pressed.
The liner 4 can be in the shape of a conical, hemispherical or dished liner, and is made of low melting point metal. The low melting point metal is also called fusible metal, and refers to an alloy having a melting point lower than the boiling point of water, such as a bismuth-lead-tin alloy (Bi 56%, Pb22%, Sn 22%) having a melting point of 95 ℃. Lead and lead-antimony alloys having physical properties close to those of the above fusible metals have been widely used as materials for cutting liners, and thus it is also feasible to use fusible alloys as liner materials for fuse-fuse energy-conducting, booster tubes. When the explosive cover is subjected to unexpected environments such as high-temperature baking, gunshot and fragment striking, the explosive cover can be structurally damaged, so that the power of a fuse guide and a detonating tube is lost or greatly reduced, and the next-stage explosive element or explosive cannot be detonated. The next stage of explosive element or charge is not reacted or can only be combusted, thus realizing the insensitivity of the fuse.
The invention has the technical points that the energy-gathering charge technology is combined with the pressure-releasing and sensitivity-reducing technology, on one hand, a charge cover made of low-melting-point metal is melted at high temperature to damage an energy-gathering charge structure, so that the power of a detonating tube and a detonating tube is lost or greatly reduced, on the other hand, an energy-gathering recess in the energy-gathering charge structure provides a discharge space for a gas product generated by the decomposition of the detonating tube and the detonating tube at high temperature, and the two supplement each other to realize the insensitivity of the structure.
When normal initiation is carried out, the fuse guide and the detonating tube adopt an energy-gathering charge structure, so that the axial initiation power is more concentrated under the influence of an energy gathering effect, and the axial accurate initiation is realized.
The liner 4 is a conical liner made of low melting point metal. The low melting point metal is also called fusible metal, and refers to an alloy having a melting point lower than the boiling point of water, such as a bismuth-lead-tin alloy (Bi 56%, Pb22%, Sn 22%) having a melting point of 95 ℃. Lead and lead-antimony alloys having physical properties close to those of the above fusible metals have been widely used as materials for cutting rope liners, and thus it is feasible to use the fusible alloys as liner materials for fuse-gathering, booster tubes. When the explosive is affected by unexpected thermal environment such as high-temperature baking, the liner material is melted before the fuse conductor and the booster charge reach the ignition temperature, so that the liner is structurally damaged, the power of the output ends of the fuse conductor and the booster is greatly reduced or even lost due to the loss of structural constraint, and the next-stage explosive element or charge cannot be detonated. The next stage of explosive element or charge does not react or only undergoes a combustion reaction, thereby achieving the thermal insensitivity characteristic of the fuse.
When the impact source hits the fuse guide and the booster, the energy-gathering structure of the fuse guide and the booster is destroyed, the detonation power can not be concentrated on the axial direction, so that the power of the output end of the fuse guide and the booster is greatly reduced or even lost, and the next-stage explosive element or explosive can not be detonated. The next stage of explosive element or charge does not react or only undergoes a combustion reaction, thereby achieving the shock insensitivity characteristic of the fuse.
Claims (2)
1. A detonator guide and booster with insensitive characteristic comprises a cover plate (1), a tube shell (2) and an explosive charge (3), wherein the tube shell (2) is cylindrical, one end of the tube shell is closed to be used as an input end, the other end of the tube shell is opened to be used as an output end, and the cover plate (1) is placed in the inner side of the input end before the explosive is pressed; the method is characterized in that: also comprises a liner (4); the explosive charge (3) and the shaped charge cover (4) are sequentially arranged in the tube shell (1), the opening of the shaped charge cover (4) faces to the output end and is pressed together with the explosive charge (3), and the explosive charge (3) forms an energy-gathering recess under the constraint of the shaped charge cover (4) and is coated by the shaped charge cover (4); the output end of the tube shell (2) is closed after the explosive charge (3) and the shaped charge cover (4) are pressed.
2. The detonator of claim 1 having insensitivity to electrical shock, wherein: the liner (4) is in a typical shape of an energy-gathering liner and is made of low-melting-point metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110362822.4A CN112985198B (en) | 2021-04-02 | 2021-04-02 | Fuze detonating tube with insensitive characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110362822.4A CN112985198B (en) | 2021-04-02 | 2021-04-02 | Fuze detonating tube with insensitive characteristic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112985198A true CN112985198A (en) | 2021-06-18 |
| CN112985198B CN112985198B (en) | 2024-04-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110362822.4A Active CN112985198B (en) | 2021-04-02 | 2021-04-02 | Fuze detonating tube with insensitive characteristic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112985198B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114560747A (en) * | 2022-03-25 | 2022-05-31 | 南京理工大学 | Fuse small-sized energy-gathering output detonator adopting single charge |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2673862Y (en) * | 2003-12-26 | 2005-01-26 | 沈阳工业学院 | Two direction flame detonator |
| CN104649853A (en) * | 2013-11-20 | 2015-05-27 | 湖北卫东化工股份有限公司 | Safe detonator |
| CN204730773U (en) * | 2015-06-19 | 2015-10-28 | 江南工业集团有限公司 | Shape charge apparatus for destroying |
| CN207850203U (en) * | 2017-12-05 | 2018-09-11 | 西安物华巨能爆破器材有限责任公司 | A kind of linear cumulative blasting device of pipeline |
| CN109556468A (en) * | 2018-12-03 | 2019-04-02 | 南京理工大学 | A kind of heavy caliber smooth bore explosive projectiles bullet contact fuze |
| CN111928738A (en) * | 2020-07-30 | 2020-11-13 | 南京理工大学 | Composite warhead device with adjustable damage power for killing broken armor |
-
2021
- 2021-04-02 CN CN202110362822.4A patent/CN112985198B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2673862Y (en) * | 2003-12-26 | 2005-01-26 | 沈阳工业学院 | Two direction flame detonator |
| CN104649853A (en) * | 2013-11-20 | 2015-05-27 | 湖北卫东化工股份有限公司 | Safe detonator |
| CN204730773U (en) * | 2015-06-19 | 2015-10-28 | 江南工业集团有限公司 | Shape charge apparatus for destroying |
| CN207850203U (en) * | 2017-12-05 | 2018-09-11 | 西安物华巨能爆破器材有限责任公司 | A kind of linear cumulative blasting device of pipeline |
| CN109556468A (en) * | 2018-12-03 | 2019-04-02 | 南京理工大学 | A kind of heavy caliber smooth bore explosive projectiles bullet contact fuze |
| CN111928738A (en) * | 2020-07-30 | 2020-11-13 | 南京理工大学 | Composite warhead device with adjustable damage power for killing broken armor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114560747A (en) * | 2022-03-25 | 2022-05-31 | 南京理工大学 | Fuse small-sized energy-gathering output detonator adopting single charge |
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| Publication number | Publication date |
|---|---|
| CN112985198B (en) | 2024-04-05 |
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