CN105627841A - Ignition method, structure and manufacturing method for electric detonator - Google Patents
Ignition method, structure and manufacturing method for electric detonator Download PDFInfo
- Publication number
- CN105627841A CN105627841A CN201511013218.1A CN201511013218A CN105627841A CN 105627841 A CN105627841 A CN 105627841A CN 201511013218 A CN201511013218 A CN 201511013218A CN 105627841 A CN105627841 A CN 105627841A
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- CN
- China
- Prior art keywords
- bridge
- connector
- film
- electrical detonator
- electric detonator
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C19/00—Details of fuzes
- F42C19/08—Primers; Detonators
- F42C19/12—Primers; Detonators electric
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
- C06C7/00—Non-electric detonators; Blasting caps; Primers
- C06C7/02—Manufacture; Packing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Air Bags (AREA)
Abstract
The invention discloses an ignition method, structure and manufacturing method for an electric detonator. The surface of an initiating explosive of the electric detonator is provided with a layer of metal thin film in contact with the initiating explosive to serve as a bridge of the electric detonator, and electric pulses from an energy storage system flow through the metal thin film bridge so that the metal thin film bridge can be heated and gasified till the metal thin film bridge is broken through to form plasma. Plasma particles permeate into a chemical agent adjacent to the plasma particles through micro-convection motion and are coagulated on chemical agent particles to transmit energy to the chemical agent particles, so that a chemical reaction is induced, and the chemical agent particles can be ignited. The metal thin film serves as the bridge, a traditional technology of the electric detonator is changed, the defects such as welding spot pseudo soldering, welding splashes and the like in a bridge manufacturing technology of the traditional technology are overcome, initiating explosive devices can be miniaturized and are low in energy consumption, high in safety and high in reliability, and a brand new technological approach is provided for development of initiating explosive devices. The ignition method, structure and manufacturing method for the electric detonator are simple, easy to conduct and ideal in use effect.
Description
Technical field
The present invention relates to the quick-fried technical field of the people, the ignition method of especially a kind of electrical detonator and structure and preparation method.
Background technology
Under the electromagnetic environment that the modern times are day by day severe, the safety and reliability of tradition detonator is subject to serious challenge, the appearance of novel microelectronic detonator, changes current situation, and becomes the focus in firer field.
Bridge band electrical detonator domestic at present is photoetching metal bridge band, its thermal capacity is big, with the thermal coupling difference of matrix, slowly, bridge band priming system is difficult to solve security and gets angry the contradiction of reliability when inputting energy and be less for a long time for product blunt sense when firing current, effect. And current bridge band processed complex, cost is higher.
Summary of the invention
It is an object of the invention to: providing a kind of profit ignition method of electrical detonator and structure and preparation method, it makes electrical detonator energy consumption reduce, it is to increase security and reliability, to overcome the deficiencies in the prior art.
The present invention is achieved in that the ignition method of electrical detonator, it is provided with the electric bridge of one layer of metallic film contacted with priming explosive as electrical detonator on the priming explosive surface of electrical detonator, impulse of current from accumulator system flows through metallic film electric bridge, making it heat, vaporizing until puncturing, formation plasma body; Plasma particle is penetrated in the medicament being adjacent by microconvection motion, and condense on pharmacy particle, transmission ofenergy to pharmacy particle and then induced chemical reaction so that it is get angry.
Metallic film electrical detonator, comprise shell, powder charge pad it is provided with in shell, the middle part of powder charge pad is priming explosive, being provided with connector in the front end of powder charge pad, the end at connector is provided with film bridge, and film bridge contacts with the priming explosive in the middle part of powder charge pad, it is provided with insulating mat in the front end of connector, goes between tactile through insulating mat and connector and film bridge joint.
The two dimensional structure of described film bridge is based on rectangle, and the both sides in the middle part of rectangle are provided with two symmetrical V-shaped breach. if the plane of film bridge is only rectangle structure, so when an electric current passes through it, in whole bridge wide region, current density is uniformly distributed, bridge floor evenly heats, and critical firing energy is relatively big, and its structure is simple, easy to process, to the less demanding priming system of critical energy, it is possible to adopt this structure. and after two symmetrical V-shaped breach occurring in the middle of film bridge, when leading to into electric current, the current density of V-shaped indentation, there is the highest, temperature rise is the fastest, it is very easy to form breach, relatively responsive, but the existence due to V-shaped breach, make to reach identical resistance, the cumulative volume of bridge is than greatly rectangular, the 1A1W/5min security and the 5A that consider film electric bridge can reliably get angry, still have selected based on rectangle, both sides in the middle part of rectangle are provided with the structure of two symmetrical V-shaped breach, making in film electric bridge process, prepare a mask, bridge district shape required by mask medium design one-tenth.
The preparation method of metallic film electrical detonator, adopts chemical vapour deposition, and the mode of physical vapor deposition or electroplating chemical plating, prepares membrane bridge by the end at connector; The assembling of electrical detonator is completed again according to electrical detonator assembling technique.
The material of film bridge is nichrome, and wherein, the mass ratio of nickel and chromium is 8:2, and resistance is 0.9��1.2 ��.
Described connector is glass plugs or ceramic plug.
Before film bridge, silver suboxide is adopted to carry out polishing grinding on connector surface.
Compared with prior art, adopt technique scheme, the present invention adopts metallic film as electric bridge, it changes electrical detonator traditional technology, make up the deficiency of traditional technology bridge technology, such as solder joint void weldering, welding splash etc., not only make priming system miniaturization and less energy-consumption, high safety, high reliability, for the development of priming system provides brand-new technological approaches. The present invention is simple, it may also be useful to satisfactory for result.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the present invention.
Embodiment
Embodiments of the invention: the ignition method of electrical detonator, it is provided with the electric bridge of one layer of metallic film contacted with priming explosive as electrical detonator on the priming explosive surface of electrical detonator, impulse of current from accumulator system flows through metallic film electric bridge so that it is heating, vaporizing until puncturing, formation plasma body; Plasma particle is penetrated in the medicament being adjacent by microconvection motion, and condense on pharmacy particle, transmission ofenergy to pharmacy particle and then induced chemical reaction so that it is get angry.
Metallic film electrical detonator, comprise shell 2, powder charge pad 5 it is provided with in shell 2, the middle part of powder charge pad 5 is priming explosive 7, being provided with connector 3 in the front end of powder charge pad 5, the end at connector 3 is provided with film bridge 4, and film bridge 4 contacts with the priming explosive 7 in the middle part of powder charge pad 5, being provided with insulating mat 1 in the front end of connector 3, lead-in wire 6 contacts through insulating mat 1 and connector 3 with film bridge 4; The two dimensional structure of described film bridge 4 is based on rectangle, and the both sides in the middle part of rectangle are provided with two symmetrical V-shaped breach.
The preparation method of metallic film electrical detonator,
The present embodiment adopts magnetron sputtering method, target cathode is connect negative pole, voltage 1��3KV, vacuum tightness is 10-4Pa, leads to into Ar, glow discharge is produced after switching on power, Ar ion bombardment target cathode, and can exchange with target atom, make target atom overcome interatomic bond force constraint and overflow, arrive the surface formation settled layer of ceramic plug 3, namely obtain film bridge 4; In two-stage sputter equipment, the magnetic field vertical with electric field is set, and the largest component making magneticstrength is parallel to target plane, increase ionization probability, making sedimentation rate improve 5��10 times than traditional sputtering sedimentation, analyze theoretically, sedimentation rate can reach 0.2��0.6 ��m of .min-1. Film bridge 4 material is nichrome (80%Ni+20%Cr), makes resistance control between 0.9 ����1.2 ��, before prepared by film bridge, first adopts silver suboxide to carry out polishing grinding on ceramic plug 3 surface; In the course of processing, side and the edge thereof in generation " recessed hole " recessed hole of phenomenon, connector surface differ greatly with bottom evaporating quality compared with the smooth part of surrounding, after evaporation deposition, resistance there will be instability, the possibility that there is electrical breakdown or burn, and even local is steamed and do not plated. The commercially available silver suboxide polishing grinding of available employing, to meet the requirement of length planeness and surface smoothness. The ceramic plug 3 having deposited film bridge 4 is assembled according to electrical detonator assembling technique with the remaining part in above-mentioned thunder and lightning pipe.
Claims (7)
1. the ignition method of an electrical detonator, it is characterized in that: be provided with the electric bridge of one layer of metallic film contacted with priming explosive as electrical detonator on the priming explosive surface of electrical detonator, impulse of current from accumulator system flows through metallic film electric bridge so that it is heating, vaporizing until puncturing, formation plasma body; Plasma particle is penetrated in the medicament being adjacent by microconvection motion, and condense on pharmacy particle, transmission ofenergy to pharmacy particle and then induced chemical reaction so that it is get angry.
2. one kind realizes the metallic film electrical detonator of the method for claim 1, comprise shell (2), it is characterized in that: in shell (2), be provided with powder charge pad (5), the middle part of powder charge pad (5) is priming explosive (7), it is provided with connector (3) in the front end of powder charge pad (5), end at connector (3) is provided with film bridge (4), film bridge (4) contacts with the priming explosive (7) at powder charge pad (5) middle part, being provided with insulating mat (1) in the front end of connector (3), lead-in wire (6) contacts through insulating mat (1) and connector (3) with film bridge (4).
3. metallic film electrical detonator according to claim 2, it is characterised in that: the two dimensional structure of described film bridge (4) is based on rectangle, and the both sides in the middle part of rectangle are provided with two symmetrical V-shaped breach.
4. the preparation method of a metallic film electrical detonator as claimed in claim 2, it is characterised in that: adopting chemical vapour deposition, the mode of physical vapor deposition or electroplating chemical plating, prepares membrane bridge by the end at connector; The assembling of electrical detonator is completed again according to electrical detonator assembling technique.
5. preparation method according to claim 4, it is characterised in that: the material of film bridge is nichrome, and wherein, the mass ratio of nickel and chromium is 8:2, and resistance is 0.9��1.2 ��.
6. preparation method according to claim 4, it is characterised in that: described connector is glass plugs or ceramic plug.
7. preparation method according to claim 4, it is characterised in that: before prepared by film bridge, adopt silver suboxide to carry out polishing grinding on connector surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511013218.1A CN105627841A (en) | 2015-12-31 | 2015-12-31 | Ignition method, structure and manufacturing method for electric detonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511013218.1A CN105627841A (en) | 2015-12-31 | 2015-12-31 | Ignition method, structure and manufacturing method for electric detonator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105627841A true CN105627841A (en) | 2016-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511013218.1A Pending CN105627841A (en) | 2015-12-31 | 2015-12-31 | Ignition method, structure and manufacturing method for electric detonator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105627841A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11209249B2 (en) * | 2017-08-21 | 2021-12-28 | Lawrence Livermore National Security, Llc | Methods to improve burst uniformity and efficiency in exploding foil initiators |
| CN115325891A (en) * | 2022-07-21 | 2022-11-11 | 保融盛维(沈阳)科技有限公司 | Processing method of digital electronic module ignition device and digital electronic module ignition device |
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| CN1749688A (en) * | 2005-10-21 | 2006-03-22 | 贵州久联民爆器材发展股份有限公司 | Method and device for igniting detonator |
| RU2400693C1 (en) * | 2009-04-07 | 2010-09-27 | Федеральное государственное унитарное предприятие "Российский Федеральный ядерный центр - Всероссийский научно-исследовательский институт экспериментальной физики" - ФГУП "РФЯЦ-ВНИИЭФ" | Electric igniter |
| CN202382273U (en) * | 2011-09-23 | 2012-08-15 | 中国电子科技集团公司第四十八研究所 | Ni-Cr alloy film bridge igniter with low ignition voltage |
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2015
- 2015-12-31 CN CN201511013218.1A patent/CN105627841A/en active Pending
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| RU2400693C1 (en) * | 2009-04-07 | 2010-09-27 | Федеральное государственное унитарное предприятие "Российский Федеральный ядерный центр - Всероссийский научно-исследовательский институт экспериментальной физики" - ФГУП "РФЯЦ-ВНИИЭФ" | Electric igniter |
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| CN204064135U (en) * | 2014-08-29 | 2014-12-31 | 中国航天科技集团公司川南机械厂 | A kind of three anti-electric squibs |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11209249B2 (en) * | 2017-08-21 | 2021-12-28 | Lawrence Livermore National Security, Llc | Methods to improve burst uniformity and efficiency in exploding foil initiators |
| CN115325891A (en) * | 2022-07-21 | 2022-11-11 | 保融盛维(沈阳)科技有限公司 | Processing method of digital electronic module ignition device and digital electronic module ignition device |
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Application publication date: 20160601 |
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