CN101975534B - Insensitive electric igniter for nuclear blast valve - Google Patents
Insensitive electric igniter for nuclear blast valve Download PDFInfo
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- CN101975534B CN101975534B CN201010173175.4A CN201010173175A CN101975534B CN 101975534 B CN101975534 B CN 101975534B CN 201010173175 A CN201010173175 A CN 201010173175A CN 101975534 B CN101975534 B CN 101975534B
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- housing
- electrode plug
- powder charge
- cap
- zirconium
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Abstract
The invention discloses an insensitive electric igniter for a nuclear blast valve, which is suitable to be used for nuclear power generating units. The electric igniter comprises an electrode plug, a charging cap, a bridge belt and charged powder, wherein the electrode plug, the charging cap, the bridge belt and the charged powder are all arranged in a shell; and the electric igniter is characterized in that the charging cap is made of aluminium oxide ceramics, and an electrostatic discharging channel is formed between an electric contact pin on the electrode plug and the inner wall of the shell by a second disk with minimum diameter on the charging cap, thereby combining the functions of 'blocking' and 'discharging'; the charged powder is a Zr/KClO4 medicament which can bear long-time high temperature and irradiation environment; and the bridge belt is serialized, and can satisfy the applied objects with different dimensional requirements for interfaces. The invention provides an electric igniter which can be used safely and reliably under the harsh operating environment of nuclear power generating units, lives up to the requirements for safety performance of misfiring under the condition of 1A/1W/5min, and meets the technical index of no leakage within 15min at an action time of not more than 10ms and under the action of 69Mpa pressure when 3.7 A of rated firing current is applied; and meanwhile, the invention has the advantages of simple structure, easy installation, good adaptability to environment, and the like.
Description
Technical field
The invention belongs to priming system technical field, relate to a kind of firer and to start element, particularly relate to the insensitiveness electric igniter that a kind of nuclear power explosive valve uses.
Background technology
The catastrophic effect that nuclear power technology may cause in worldwide wide application and nuclear power plant accident, nuclear safety problem is received much concern, along with the development of Generation Ⅲ, be that the explosive valve of initial ignition element is worldwide used in compacted clay liners first with igniter, the major accidents such as molten heap can effectively be alleviated and prevent to explosive valve, is the key safety device of nuclear power generating sets.The use of explosive valve decreases nuclear power generating sets safety means quantity, improves unit safety and economy, and electric igniter is the initial ignition executive component of explosive valve.When nominal situation, igniter definitely can not error starting; When accident conditions, electric igniter must reliably be got angry after receiving the instruction that I&C system sends, and the safety and reliability of electric igniter determines the safety and reliability of explosive valve to a great extent, is one of critical component of explosive valve.Because nuclear power generating sets working environment is special, namely there is the features such as high temperature, high humidity, irradiation, seismic (seismal, pulsating load, therefore, the security of nuclear power generating sets product used, reliability are had higher requirement.Harsh working environment residing for nuclear power generating sets, the priming system requiring its explosive valve uses is safe A level, the core level product of antidetonation 1 grade.
Electric igniter has been widely used in the fields such as armament systems, space flight and aviation.The open electric igniter used is mostly by the energy input of electrostatic leakage channel setting at electrode plug at present, and then with lucite protection electrostatic leakage passage, its powder charge generally adopts CMC-Ba-TNR or the medicament such as plumbous barium eutectic primary explosive or B/KNO3.But lucite can soften under the high temperature operating conditions of nuclear power generating sets, and softening lucite will shutoff electrostatic leakage passage, the anti-static ability of electric igniter is declined, thus reduces the security of electric igniter; In addition, these powder charges that electric igniter is selected at present can not adapt to long-time high temperature, the working environment that irradiation etc. are harsh.Can say, existing electric igniter all cannot adapt to the harsh working environment of nuclear power generating sets.
Summary of the invention
The technical problem to be solved in the present invention is, cannot adapt to the problem of nuclear power generating sets working environment for electric igniter of the prior art, for nuclear power explosive valve provides a kind of insensitiveness electric igniter that can meet core level product requirement.Specifically, this electric igniter can not only tolerate long-time high temperature and radiation environment, but also has the feature of compact conformation, good environmental adaptability.
For solving the problems of the technologies described above, electric igniter provided by the invention comprises fluid sealant, electrode plug, powder charge cap, housing, bridge band, powder charge, insulation spacer, sealing cap and connector; Described electrode plug is formed by two electric mortiser pins, seal glass and the electrode plug housing sealing-in with outer step locating surface; Described powder charge cap is made up of the cylinder of arranged in co-axial alignment successively, the first disk and the second disk, cylindrical largest diameter, first disk diameter is minimum, and cylindrical one end is with circular-shaped, concave cavity and coyote hole, and powder charge cap is provided with the two groups of pin holes run through with the second disk bottom circular-shaped, concave cavity; The inner chamber of described housing is with three circular orientation faces; Described powder charge is twice zirconium-potassium hyperchlorate medicament, and first is for press-fiting medicine, and second is bulk powder charge, and the composition of zirconium-potassium hyperchlorate is, the zirconium powder of 30% ~ 60%, the potassium hyperchlorate of 35% ~ 60% and the nitrocotton of 5 ~ 10%; Described electrode plug and described powder charge cap are all arranged in the inner chamber of described housing, wherein: the outer step locating surface of electrode plug housing contacts with the second locating surface of housing, the minor diameter end face of electrode plug housing and concordant and both the end face peripheries of the 3rd locating surface of housing are connected; Described 3rd locating surface is to the housing cavity fluid sealant embedding of port, and it is outer to described connector cavity that two electric mortiser pins that electrode plug housing minor diameter end face stretches out extend to housing; The major diameter end contact of the end face that described cylinder is adjacent with the first disk and described electrode plug housing, the external diameter of described second disk and the aperture of electrode plug housing match, cylindrical external diameter then matches with the internal diameter of described housing, two electric mortisers stretched out by electrode plug housing major diameter end face in two groups of pin holes that should be inserted into powder charge cap and the end face of two electric mortiser pins and the bottom surface of circular-shaped, concave cavity concordant; The space of 0.3 ~ 0.4mm is left between described two electric mortiser pins and the hole wall of described electrode plug housing; Bottom the cylinder cavity that described bridge band is placed on described powder charge cap and the end of two electric mortiser pins correspondence is welded on two pads of bridge band; Road zirconium-potassium hyperchlorate medicament is pressed into successively, pine is contained in described coyote hole for first, second of powder charge; Described insulation spacer to be placed on second zirconium-potassium hyperchlorate medicament and concordant with the uncovered end face of described powder charge cap; The first annular locating surface that described sealing cap is positioned at described housing is connected with housing.
According to the present invention, described zirconium-potassium hyperchlorate medicament is by the zirconium powder of 45%, the potassium hyperchlorate of 47% and 8% fluorubber composition and zirconium powder granularity is less than 10 μm.
According to the present invention, the shape of described bridge band is: the linearity that middle thin two ends are thick; Or a serial connection round screw thread sheet in the middle of two pads; Or two pads are connected in series " day " shape a frame by two symmetrical semilunar plates.
According to the present invention, described bridge band adopts Cr20Ni80 (GB/T1234-1995) the high-resistance electrothermic alloy band that 0.025mm ~ 0.03mm is thick.
According to the present invention, described powder charge cap adopts aluminium oxide ceramics A-95 (95%Al
2o
3porcelain) (GB/T5593-1996) making.
Beneficial effect of the present invention is embodied in the following aspects.
(1) in the present invention, the diameter of the first disk on its powder charge cap is minimum, and two groups of non-through first disks of pin holes, thus, between two electric mortiser pins and inner walls, form electrostatic leakage passage; In addition, powder charge cap adopts aluminium oxide ceramics to make, and because this material insulation property is good, namely has dielectric strength and is greater than 15kV/mm, and the powder charge cap between powder charge and housing can effective shutoff hazardous path.This design electrostatic leakage element and dead ring united two into one of powder charge cap, " lets out " function by " blocking up " and is combined as a whole, thus the accidental ignition that electric igniter of the present invention can be made effectively to prevent from being not more than 25Kv electrostatic cause.In addition, this powder charge cap also overcomes in prior art the drawback adopting lucite protection electrostatic leakage passage to produce, and provides technical support for applying the present invention to nuclear power generating sets.
(2) Zr/KClO is selected in the powder charge in electric igniter of the present invention
4medicament, because this medicament sensitivity is lower, can tolerate long-time high temperature and radiation environment, and thus, electric igniter of the present invention can adapt to nuclear power generating sets.Harsh environment for use, and safety, the reliable ignition of nuclear power explosive valve can be ensured.
(3) the bridge band adopted in the present invention forms seriation, can meet distinct interface dimensional requirement, expands the scope of application of the present invention; By the reasonable coordination of bridge band, powder charge cap and powder charge, effectively can realize the security performance requirement that 1A/1W/5min misfires, meet simultaneously and apply the specified firing current of 3.7A, action time is not more than the requirement of 10ms.
Accompanying drawing explanation
Fig. 1 is the structure composition schematic diagram of insensitiveness electric igniter of the present invention.
Fig. 2 is the electrode plug structure composition schematic diagram shown in Fig. 1.
Fig. 3 is the powder charge cap schematic diagram shown in Fig. 1.
Fig. 4 is the shell structure schematic diagram shown in Fig. 1.
Fig. 5 is the version schematic diagram of various bridge band in the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing and preferred embodiment, the present invention is described in further detail.
As shown in Figure 1, the electric igniter of the preferred embodiment of the present invention comprises fluid sealant 1 electrode plug 2, powder charge cap 3, housing 4, bridge band 5, powder charge 6, insulation spacer 7, sealing cap 8 and connector 9.Electrode plug 2 is containing two electric mortiser pin 2.1, seal glass 2.2 and electrode plug housings 2.3 (see Fig. 2), the profile of electrode plug housing 2.3 be convex cylindrical and endoporus with step surface, step surface is arranged with two axially extending bores, two electric mortiser pins 2.1 are each passed through two axially extending bores of electrode plug housing 2.3 and are fixed by seal glass and the two ends of two electric mortiser pins 2.1 are stretched out by the two ends of electrode plug housing 2.3, and seal glass 2.2 can ensure that the present invention's insulaion resistance met between electric mortiser pin 2.1 and housing 4 is no less than 50M Ω (500V).Powder charge cap 3 is the coaxial configuration body (see Fig. 3) that a cylinder 3.1 and two adjacent discs 3.2,3.3 are formed, and adopt the alumina ceramic material of perfect heat-dissipating to make, the largest diameter of cylinder 3.1, first disk 3.2 diameter adjacent with cylinder 3.1 is minimum.One end of cylinder 3.1 is with circular-shaped, concave cavity 3.1.1 and coyote hole, and circular-shaped, concave cavity 3.1.1 bottom symmetrical is provided with two the first pin holes, second disk 3.3 is arranged with two the second pin holes, two the first pin holes and two the second pin opening position corresponding and form two groups of pin holes of powder charge cap 3 one to one.The matrix of housing 4 is cylinder (see Fig. 4), and its inner chamber, with three circular orientation faces 4-1,4-2,4-3, the 3rd circular orientation face 4-3 is provided with annular glue groove 4-4; With the annular shaft shoulder in the middle part of the outer wall of housing 4, the cylinder of annular shaft shoulder side is provided with external screw thread, and opposite side is with annular step tread 4-5.Powder charge 6 is twice zirconium-potassium hyperchlorate (Zr/KClO
4) medicament, first is for press-fiting medicine, and second is bulk powder charge; The main component of zirconium-potassium hyperchlorate is: the zirconium powder of 30% ~ 60%, the potassium hyperchlorate of 35% ~ 60% and the nitrocotton of 5 ~ 10%.Insulation spacer 7 selects polytetrafluoroethylmaterial material to make, and its effect is the sealing and the mechanical property that improve electric igniter of the present invention, and prevents electrostatic from axially puncturing.The concavity lid that sealing cap 8 makes for metal material.
Again see Fig. 1, electrode plug 2 and powder charge cap 3 are all arranged in the inner chamber of housing 4, wherein, the between outer land terrace of electrode plug housing 2.3 is positioned on the second locating surface 4-2 of housing 4, the external diameter of electrode plug housing 2.3 and the internal diameter of housing 4 corresponding position match, and the minor diameter end face of electrode plug housing 2.3 and both end face peripheries concordant with the 3rd locating surface 4-3 of housing are connected in laser weld mode.The two electric mortiser pins 2.1 stretched out by electrode plug housing 2.3 minor diameter end face extend to housing 4 outside and the embedding of this section of inner chamber fluid sealant 1 by the inner chamber of housing 4 with glue groove 4-1 one end, and to make the present invention under 69Mpa gas pressure, 15min does not reveal.The end face of connector 9 welds with the annular step tread 4-5 of housing 4, which thereby enhances mechanical environment adaptability of the present invention; The termination of two electric mortiser pins 2.1 puts in connector 9.The end face of cylinder 3.1 adjacent with the first disk 3.2 on powder charge cap 3 and the major diameter end contact of electrode plug housing 2.3, the external diameter of the second disk 3.3 and the aperture of electrode plug housing 2.3 match, and the external diameter of cylinder 3.1 then matches with the internal diameter of housing 4.The two electric mortiser pins 2.1 stretched out by electrode plug housing 2.3 major diameter end face to be inserted in two groups of pin holes of powder charge cap 3 by the second disk 3.3 correspondence and the end face of two electric mortiser pins 2.1 and the bottom surface of circular-shaped, concave cavity 3.1.1 concordant, in addition, the space A of 0.3 ~ 0.4mm is left between the hole wall of two electric mortiser pins 2.1 and electrode plug housing 2.3, when electrostatic potential is greater than electrostatic leakage passage breakdown voltage, electrostatic is released from A, thus avoids electric igniter accidental ignition under electrostatic interaction.Bottom the cylinder cavity 3.1.1 that bridge band 5 is placed on powder charge cap 3 and the end of two electric mortiser pins 2.1 correspondence be welded on two pads of bridge band 5.Bottom the cylinder cavity 3.1.1 that the first of powder charge 6 zirconium-potassium hyperchlorate medicament is pressed into powder charge cap 3 with the pressure of 80MPa and coyote hole, and then second zirconium-potassium hyperchlorate medicament is sprinkling upon on first medicament.Insulation spacer 7 to be placed on second zirconium-potassium hyperchlorate medicament and concordant with the uncovered end face of powder charge cap 3, the bottom surface of sealing cap 8 is positioned on the first annular locating surface 4-1 of housing 4, the end face periphery of upper, annular barrel end face and housing 4 is connected in laser weld mode, to make electric igniter of the present invention, there is good sealing, also improve the climatic environment conformability of product simultaneously, on the annular step tread 4-5 that the large cylinder end face of connector 9 is positioned at housing 4 and end face periphery be connected in laser weld mode.
According to Fig. 5, bridge band can have various ways and select according to the spacing size of two electric mortiser pins 2.1, wherein: figure (a), kind of the bridge band forms of two shown in (b) are applicable to the embodiment of Small Distance electric mortiser pin, the bridge band forms of figure shown in (c) ~ (f) is applicable to the embodiment of middle Large space electric mortiser pin.In the present invention, the material of bridge band 5 is Cr20Ni80 (GB/T 1234-1995) the high-resistance electrothermic alloy band that 0.025mm ~ 0.03mm is thick.The bridge band forms of figure shown in (a) ~ (c) is prior art jackshaft band, and to scheme the bridge band forms shown in (d) ~ (f) be the newly-designed bridge band of the present invention: shown in figure (d), the shape of bridge band is, the linearity that middle thin two ends are thick; Shown in figure (e), the shape of bridge band is, two pads are connected in series " day " shape frame by two symmetrical semilunar plates; Shown in figure (e), the shape of bridge band is, a serial connection round screw thread sheet in the middle of two pads.
In the preferred embodiment, powder charge 6 select by the zirconium powder of 45%, the potassium hyperchlorate of 47% and 8% zirconium-potassium hyperchlorate medicament of forming of nitrated celloidin, the granularity of zirconium powder is less than 10 μm.
When applying of the present invention, by the screw thread of housing 4 and other Fire load or equipment connection, connector 9 is connected with electric connector.When applying specified firing current by two electric mortiser pins, 2.1 pairs of bridge bands 5, electric energy conversion is heat energy and adds heat bridge band 5, and the heat that bridge band 5 produces is far longer than by powder charge cap 3 dispersed heat, and reaches the bursting point of powder charge 6 instantaneously, powder charge 6 of igniting; Powder charge 6 is burnt and is produced high-temperature high-pressure fuel gas, when this combustion gas reaches certain temperature and pressure, will light the powder charge in other Fire load, complete ignition function, or promotes the acting of other mechanical device as " power source ".
Carried out laboratory fire trial to multiple embodiment of the present invention, experimental result shows, electric igniter use procedure safety of the present invention: energy preventing RF, radiation proof, antistatic (being not more than 25kV), anti-stray current; 1A/1W/5min misfires; Reliable effect: reliability of getting angry reaches 0.999 (confidence level is 0.90).
Claims (5)
1. an insensitive electric igniter for nuclear blast valve, comprise fluid sealant [1], electrode plug [2], powder charge cap [3], housing [4], bridge band [5], powder charge [6], insulation spacer [7], sealing cap [8] and connector [9], described electrode plug [2] is formed by two electric mortiser pins [2.1], seal glass [2.2] and electrode plug housing [2.3] sealing-in with outer step locating surface, it is characterized in that: described powder charge cap [3] is made up of the cylinder [3.1] of arranged in co-axial alignment successively, the first disk [3.2] and the second disk [3.3], the largest diameter of cylinder [3.1], first disk [3.2] diameter is minimum, one end of cylinder [3.1] is with circular-shaped, concave cavity [3.1.1] i.e. coyote hole, and powder charge cap [3] is provided with the two groups of pin holes running through circular-shaped, concave cavity [3.1.1] bottom and the second disk [3.3], the inner chamber of described housing [4] is with three circular orientation faces [4-1,4-2,4-3], described powder charge [6] is twice zirconium-potassium hyperchlorate medicament, and first is for press-fiting medicine, and second is bulk powder charge, and the composition of zirconium-potassium hyperchlorate is, the zirconium powder of 30% ~ 60%, the potassium hyperchlorate of 35% ~ 60% and the nitrocotton of 5 ~ 10%, described electrode plug [2] and described powder charge cap [3] are all arranged in the inner chamber of described housing [4], wherein: the outer step locating surface of electrode plug housing [2.3] contacts with second locating surface [4-2] of housing [4], the minor diameter end face of electrode plug housing [2.3] and concordant and both the end face peripheries of the 3rd locating surface [4-3] of housing [4] are connected, described 3rd locating surface [4-3] is to housing [4] inner chamber fluid sealant [1] embedding of port, and two electric mortiser pins [2.1] that electrode plug housing [2.3] minor diameter end face stretches out extend to housing [4] outward to described connector [9] cavity, the major diameter end contact of the end face that described cylinder [3.1] is adjacent with the first disk [3.2] and described electrode plug housing [2.3], the external diameter of described second disk [3.3] and the aperture of electrode plug housing [2.3] match, the external diameter of cylinder [3.1] then matches with the internal diameter of described housing [4], two electric mortiser pin [2.1] correspondences of being stretched out by electrode plug housing [2.3] major diameter end face are inserted in two groups of pin holes of powder charge cap [3] and the end face of two electric mortiser pins [2.1] is concordant with the bottom surface of circular-shaped, concave cavity [3.1.1], the space of 0.3 ~ 0.4mm is left between described two electric mortiser pins [2.1] and the hole wall of described electrode plug housing [2.3], described bridge band [5] is placed on cylinder cavity [3.1.1] bottom of described powder charge cap [3] and the end correspondence of two electric mortiser pins [2.1] is welded on two pads of bridge band [5], road zirconium-potassium hyperchlorate medicament is pressed into successively, pine is contained in described coyote hole for first, second of powder charge [6], described insulation spacer [7] to be placed on second zirconium-potassium hyperchlorate medicament and concordant with the uncovered end face of described powder charge cap [3], the first annular locating surface [4-1] that described sealing cap [8] is positioned at described housing [4] is gone up and is connected with housing [4].
2. insensitive electric igniter for nuclear blast valve according to claim 1, is characterized in that: described zirconium-potassium hyperchlorate medicament is by the zirconium powder of 45%, the potassium hyperchlorate of 47% and 8% nitrocotton composition and zirconium powder granularity is less than 10 μm.
3. insensitive electric igniter for nuclear blast valve according to claim 1, is characterized in that: the shape of described bridge band [5] is: the linearity that middle thin two ends are thick; Or a serial connection round screw thread sheet in the middle of two pads; Or two pads are connected in series " day " shape a frame by two symmetrical semilunar plates.
4. insensitive electric igniter for nuclear blast valve according to claim 3, is characterized in that: described bridge band [5] adopts the Cr20Ni80 high-resistance electrothermic alloy band that 0.025mm ~ 0.03mm is thick.
5. the insensitive electric igniter for nuclear blast valve according to claim 1 or 2 or 3 or 4, is characterized in that: described powder charge cap [3] adopts aluminium oxide ceramics A-95 and 95%Al
2o
3porcelain makes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010173175.4A CN101975534B (en) | 2010-05-17 | 2010-05-17 | Insensitive electric igniter for nuclear blast valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010173175.4A CN101975534B (en) | 2010-05-17 | 2010-05-17 | Insensitive electric igniter for nuclear blast valve |
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| Publication Number | Publication Date |
|---|---|
| CN101975534A CN101975534A (en) | 2011-02-16 |
| CN101975534B true CN101975534B (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010173175.4A Expired - Fee Related CN101975534B (en) | 2010-05-17 | 2010-05-17 | Insensitive electric igniter for nuclear blast valve |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103172478B (en) * | 2011-12-26 | 2015-08-19 | 中国兵器工业第二一三研究所 | The preparation method of zirconium potassium perchlorate insensitiveness priming charge |
| CN103954180A (en) * | 2014-04-23 | 2014-07-30 | 中国工程物理研究院化工材料研究所 | Igniter electrode of detonation valve |
| CN103968722B (en) * | 2014-05-21 | 2015-10-28 | 中国工程物理研究院化工材料研究所 | A kind of explosive valve igniter |
| CN105065754B (en) * | 2015-07-21 | 2017-11-07 | 中船重工特种设备有限责任公司 | Explosion valve drive |
| CN110285911B (en) * | 2019-06-26 | 2021-11-30 | 湖南省航务工程有限公司 | Pressure monitoring device for underwater blasting |
| CN110427698B (en) * | 2019-08-01 | 2021-06-04 | 西安电子科技大学 | Electromagnetic transmission performance oriented active lead lap welding interconnection point regulation and control method |
| CN110718663B (en) * | 2019-10-12 | 2022-03-22 | 中国电子科技集团公司第十八研究所 | Lithium fluorocarbon battery electrostatic protection device and method for space aircraft |
| CN110887413A (en) * | 2019-11-27 | 2020-03-17 | 西安航天动力研究所 | High insensitive miniaturized electric detonator |
| CN110953934B (en) * | 2019-12-18 | 2020-10-16 | 北京理工大学 | High-temperature-resistant insensitive electric detonator and charging sequence |
| CN111922579B (en) * | 2020-05-29 | 2022-04-12 | 西安航天精密机电研究所 | System and method for accurately welding sealing body pole needle and bridge band based on six-axis robot |
| CN111922577B (en) * | 2020-05-29 | 2022-07-29 | 西安航天精密机电研究所 | Six-axis robot-based manipulator for welding polar needle and bridge belt of sealing body |
| CN114321974B (en) * | 2021-11-30 | 2023-06-27 | 北京航天计量测试技术研究所 | Flame-proof type ignition gun suitable for high-pressure environment |
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| CN2604630Y (en) * | 2002-07-26 | 2004-02-25 | 上海基益科技实业公司 | Ignitor |
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| CN1579845A (en) * | 2003-08-08 | 2005-02-16 | 高田株式会社 | Initiator, powder for same, starting method of the initiator and gas generator |
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| JP4473818B2 (en) * | 2005-12-28 | 2010-06-02 | 昭和金属工業株式会社 | Initiator igniter, method for producing the same, and method for producing initiator using the same |
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| CN2604630Y (en) * | 2002-07-26 | 2004-02-25 | 上海基益科技实业公司 | Ignitor |
| CN1579845A (en) * | 2003-08-08 | 2005-02-16 | 高田株式会社 | Initiator, powder for same, starting method of the initiator and gas generator |
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