CN114111473A - Explosion-proof safety test method for preventing conclusion distortion of acupuncture detonator fuse - Google Patents
Explosion-proof safety test method for preventing conclusion distortion of acupuncture detonator fuse Download PDFInfo
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- CN114111473A CN114111473A CN202111383019.5A CN202111383019A CN114111473A CN 114111473 A CN114111473 A CN 114111473A CN 202111383019 A CN202111383019 A CN 202111383019A CN 114111473 A CN114111473 A CN 114111473A
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- detonator
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- 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
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Abstract
The invention discloses a method for testing explosion-proof safety of a detonator of a pinprick detonator, which comprises the steps of carrying out power equivalent remanufacturing on the detonator of the detonator pinprick, modifying a test detonator, arranging the test detonator into a test box, igniting the detonator special for the explosion-proof safety of the detonator in the test detonator, and then carrying out explosion-proof safety evaluation on the detonator. The invention can effectively solve the problem that potential safety hazards exist due to the fact that test conclusions are optimistic when the test firing pin insertion holes are increased by modifying the explosion-proof safety test fuze of the pinprick detonator. The testing method of the invention is to replace the fuze needle-punched detonator with the detonator special for flame input ignition, power equivalent explosion-proof safety test, and the ignition source is additionally arranged in the fuze, and the fire transfer holes or the fire transfer grooves are additionally arranged on part of internal structural members of the fuze to realize flame ignition, so that the influence on the test conclusion is conservative, and the explosion-proof safety performance evaluation conclusion of the fuze can be prevented from being distorted.
Description
Technical Field
The invention belongs to the technical field of fuzes, and particularly relates to a method for testing explosion-proof safety of a needle detonator fuze, which can prevent conclusion distortion.
Background
The detonator is mainly divided into a needle detonator, a flame detonator and an electric detonator. The detonator explosion-proof safety test needs to artificially detonate the detonator in the isolation position in the detonator. The electric detonator is provided with a lead wire and is easy to realize. The flame detonator is ignited by flame, and the explosion-proof part is used for removing the structural clearance required by the safety movement, so that no problem exists. However, the method is usually to modify the detonator, and drill a firing pin hole on the detonator along the axis of the detonator at the isolation position in the direction of the input end of the detonator, so that a test firing pin is inserted to fire the needled detonator at the isolation position in the detonator during the explosion-proof safety test of the detonator. A typical setup for this test is shown in GJB 573B-2020 fuze and fuze parts environmental and Performance test methods, fig. 401-3. The modification can cause the test conclusion to be distorted in an optimistic way, namely, gaseous products generated by firing and explosion of the needle-pricked detonator can be discharged from the channel (the drilled firing pin insertion hole), so that the pressure in the inner cavity of the detonator is reduced sharply and greatly, and partial products with explosion-proof potential safety hazards can be judged to be qualified by mistake due to false phenomena in the research and identification tests, thereby forming serious potential safety hazards.
Disclosure of Invention
The invention aims to provide a method for testing explosion-proof safety of a detonator of a needled detonator, which can prevent the result from being distorted, so as to solve the problem that the result of the test is distorted when the detonator of the needled detonator is modified for testing the explosion-proof safety.
The technical solution for realizing the purpose of the invention is as follows: a method for preventing a conclusion from being distorted for explosion-proof safety test of a detonator fuse comprises the following steps:
the detonator is changed into a detonator special for detonator explosion-proof safety, the detonator special for detonator explosion-proof safety is a flame detonator, the external shape and the size of the shell are not changed, the shape and the size of the inner cavity of the shell are also not changed, meanwhile, the needling sensitive part on the shell is opened, the needling powder filled inside is changed into ignition powder, and the rest filling materials such as delay powder, initiating powder and high explosive are not changed.
Further, if the original detonator needle-punched detonator is provided with the reinforcing cap or the cover plate, the reinforcing cap or the cover plate is not changed in the detonator special for the detonator explosion-proof safety.
Further, a silk pad can be additionally arranged between the gunpowder and the pipe shell according to the requirement.
the test fuse is properly modified to be additionally provided with an electric ignition head or an electric ignition tube as an ignition source, and a part of the fuse needs to be additionally provided with a fire transfer hole or a fire transfer groove between the ignition source and the special detonator for the explosion-proof safety of the fuse at an isolation position, so that the special detonator for the explosion-proof safety of the fuse can be reliably detonated at the explosion-proof position of the special detonator.
4, detonating a special detonator for the fuze explosion-proof safety in the fuze of the test, and then performing fuze explosion-proof safety evaluation:
the explosion-proof safety of the detonator is evaluated by observing whether the detonating powder or the booster powder is detonated, whether the detonation powder or the booster powder has the evidence of being detonated and whether dangerous fragments are sprayed out.
Compared with the prior art, the invention has the beneficial effects that:
the test method can effectively solve the problem that the test conclusion is optimistic and potential safety hazard exists due to the fact that the test firing pin insertion hole is increased by modifying the explosion-proof safety test fuse of the pinprick detonator, and avoids that part of products with the explosion-proof potential safety hazard are mistakenly judged to be qualified because the test result is not found when the products are researched and identified.
Drawings
FIG. 1 is a flow chart of a method for testing explosion-proof safety of a detonator fuse of the acupuncture detonator, which can prevent conclusion distortion.
FIG. 2 is a typical arrangement schematic diagram of the explosion-proof safety test method for the detonator of the pinprick detonator, which prevents the conclusion from being distorted.
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 test method provided by the invention is characterized in that the detonator needled by the fuze is replaced by the detonator special for fuze explosion-proof safety (flame detonator), the ignition source is additionally arranged in the fuze, and the fire transfer hole or the fire transfer groove is additionally arranged on the internal structural component of the fuze to realize flame ignition, so that the influence on the test conclusion is conservative, and the evaluation conclusion of the fuze explosion-proof safety performance can be prevented from being distorted optimistically.
With reference to fig. 1, the invention provides a method for testing explosion-proof safety of a detonator fuse for preventing conclusion distortion, which comprises the following steps:
the detonator is changed into the detonator 3 special for detonator explosion-proof safety, the detonator 3 special for detonator explosion-proof safety is a flame detonator, the external shape and size of the detonator shell are not changed, the shape and size of the inner cavity of the detonator shell are also not changed, simultaneously, the needling sensitive part on the detonator shell is punched, the needling powder filled inside is changed into ignition powder, and the rest filling materials such as delay powder, initiating powder and high explosive are not changed.
Further, if the original detonator needle-punched detonator is provided with the reinforcing cap or the cover plate, the reinforcing cap or the cover plate is not changed in the detonator special for detonator explosion-proof safety 3.
Further, a silk pad can be additionally arranged between the gunpowder and the pipe shell according to the requirement.
the test fuse is properly modified to be additionally provided with an electric ignition head or an electric ignition tube as an ignition source 1, and a part of the fuse needs to be additionally provided with a fire transfer hole or a fire transfer groove 2 between the ignition source 1 and a special detonator 3 for fuse explosion-proof safety at an isolation position, so that the special detonator 3 for fuse explosion-proof safety can be reliably detonated at the explosion-proof position.
And 3, installing the test fuse and placing the test fuse into a test box.
4, detonating a special detonator 3 for the fuze explosion-proof safety in the fuze of the test, and then performing fuze explosion-proof safety evaluation:
the special detonator 3 for the explosion-proof safety of the fuze in the fuze is ignited and detonated by the ignition source 1, and the explosion-proof safety of the fuze is evaluated by observing whether the detonating powder or the booster powder is detonated, whether the detonating powder or the booster powder has an indication that the detonating powder can be detonated and whether dangerous fragments are sprayed out.
The ignition charge should have high flame sensitivity and sufficient ignition capability, and the most commonly used ignition charge in detonators is stevensite. The needling powder used for the needling detonator has high needling sensitivity and sufficient ignition capability, mainly consists of an initiating explosive, a combustible agent and an oxidizing agent, and a sensitizer (such as tetrazene or hard impurities) is added into most needling powders. The common initiating explosive used in the needling agent of the needling detonator is lead stevensite and lead nitride, the combustible agents are antimony sulfide, lead thiocyanate, silicon, iron, magnesium, aluminum powder and the like, and the oxidant is generally barium nitrate, lead nitrate, potassium cyanate and the like. The acupuncture powder can be divided into acupuncture powder using lead stevensonate as the main initiating powder and acupuncture powder using lead nitride as the main initiating powder according to the classification of the main initiating powder in the components. The needling agent (such as the commonly used No. 2 needling agent, the content of lead stefenate is 50%) which takes lead stefenate as the main initiating agent has higher flame sensitivity and can be directly used as the ignition agent. Therefore, the needle-punched detonator is reformed, and the needle-punched end of the tube shell is only punched through to form an ignition channel without changing the explosive. Compared with the common ignition explosive lead stevensonate, the acupuncture explosive taking lead nitride as the main initiating explosive has lower flame sensitivity, higher power, stronger work-doing capability per unit mass and larger threat to the explosion-proof safety of the fuse, so the acupuncture explosive taking lead nitride as the main initiating explosive cannot be directly replaced by the stevensonate, otherwise, the test conclusion is distorted optimistically. However, the mix of stevensite lead acid and lead nitride is used as the ignition powder to replace the acupuncture powder which takes lead nitride as the main initiating powder, thereby not only ensuring the sufficient flame sensitivity, but also improving the power and the work-doing capability of the ignition powder, realizing the power equivalence of the acupuncture powder and the ignition powder, and avoiding the problem that the test conclusion is biased to optimistically distorted due to simple powder change.
In conclusion, the test method of the invention is to replace the detonator needled with the detonator with the special detonator 3 for the detonator explosion-proof safety, the ignition source 1 is additionally arranged in the detonator, and the fire transfer holes or the fire transfer grooves 2 are required to be additionally arranged on the large internal structural part of the detonator to realize flame ignition, so that the influence on the test conclusion is conservative, and the assessment conclusion of the detonator explosion-proof safety performance can be prevented from being distorted.
Example 1
With reference to fig. 1 and 2, the explosion-proof safety test method for the needle detonator fuze for preventing conclusion distortion, provided by the invention, specifically comprises the following steps:
And 2, properly modifying the test fuse to add an electric ignition head or an electric ignition tube as an ignition source 1 (in order to ensure that the modified structure is closed and the test conclusion is not optimistically distorted, a sealant is added at a lead inlet of the ignition source 1, the electric ignition head or the electric ignition tube needs to have as little pesticide as possible and have as small a volume as possible on the premise that the special detonator for the explosion-proof safety of the fuse can be reliably ignited), reliable fire transmission can be realized by a part of the internal structure clearance of the fuse (for example, the clearance formed by clearance fit for ensuring the safety relief movement of an explosion-proof piece) being larger, and a part of the fuse needs to add a fire transmission groove 2 between the ignition source 1 and the special detonator for the explosion-proof safety of the fuse 3 at an isolation position so that the special detonator for the explosion-proof safety of the fuse 3 can be reliably ignited at the explosion-proof position.
And 3, mounting the modified fuzes on a test fixture, and then putting the fuzes into a fragment test box specified by the standard.
And 4, igniting by using the electric ignition head or the electric ignition tube to trigger the special detonator 3 for the explosion-proof safety of the detonator, and evaluating the explosion-proof safety of the detonator by observing whether the detonating powder or the booster powder is detonated, whether the detonating powder or the booster powder has an indication that the detonating powder can be detonated and whether dangerous fragments are sprayed out.
The test method is characterized in that a detonator needle-punched detonator is replaced by a detonator special for detonator explosion-proof safety 3, a firing source 1 is additionally arranged in a detonator, a fire transfer groove 2 is additionally arranged on an internal structural component of the detonator in a modified mode to realize flame firing, and the influence of the firing source on the test conclusion is conservative, so that the evaluation result and conclusion of the explosion-proof safety performance of the detonator can be prevented from being distorted optimistically.
The special detonator 3 for the fuse explosion-proof safety can be manufactured and provided by original fuse needle-punched detonator manufacturers by utilizing the existing conditions. The power equivalence can be assessed using charge configuration comparisons and either the lead plate test or the aluminum recess test.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (3)
1. A method for testing explosion-proof safety of a detonator fuse of a needle detonator for preventing conclusion distortion is characterized by comprising the following steps:
step 1, performing power equivalent transformation on the detonator with the fuze needle punched:
changing the detonator needle-punched detonator into a detonator special for detonator explosion-proof safety (3), wherein the detonator special for detonator explosion-proof safety (3) is a flame detonator, the external dimension of which is unchanged, the external dimension and the internal dimension of the tube shell are also unchanged, the needle-punched sensitive part on the tube shell is communicated, the needle-punched explosive filled inside is changed into ignition explosive, and the rest of the explosive is not changed;
step 2, modifying the test fuse:
an electric ignition head or an electric ignition tube is additionally arranged as an ignition source (1);
step 3, arranging the test fuse into a test box;
4, performing fuze explosion-proof safety evaluation after detonating the special detonator (3) for fuze explosion-proof safety in the fuze of the test:
the explosion-proof safety of the detonator is evaluated by observing whether the detonating powder or the booster powder is detonated, whether the detonating powder or the booster powder has an indication that the detonating powder can be detonated and whether dangerous fragments are ejected or not through the special detonator (3) for the explosion-proof safety of the detonator in the detonating test by the ignition source (1).
2. The method for testing the explosion-proof safety of the detonator fuze of the acupuncture detonator for preventing the conclusion from being distorted according to claim 1, which is characterized in that: in the step 1, if the original detonator needling detonator is provided with a reinforcing cap or a cover plate, the reinforcing cap or the cover plate is not changed in the detonator (3) special for detonator explosion-proof safety.
3. The method for testing the explosion-proof safety of the detonator fuze of the acupuncture detonator for preventing the conclusion from being distorted according to claim 1, which is characterized in that: in the step 2, a part of the fuze needs to be additionally provided with a fire transmission hole or a fire transmission groove (2) between the ignition source (1) and the special fuze explosion-proof safety detonator (3) at the isolation position, so that the special fuze explosion-proof safety detonator (3) can be reliably detonated at the explosion-proof position.
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| CN202111383019.5A CN114111473B (en) | 2021-11-22 | 2021-11-22 | Explosion-proof safety test method for needled detonator fuze capable of preventing conclusion distortion |
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| CN202111383019.5A CN114111473B (en) | 2021-11-22 | 2021-11-22 | Explosion-proof safety test method for needled detonator fuze capable of preventing conclusion distortion |
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| CN114111473A true CN114111473A (en) | 2022-03-01 |
| CN114111473B CN114111473B (en) | 2023-10-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115325890A (en) * | 2022-08-15 | 2022-11-11 | 南京理工大学 | Explosion-proof high-safety ignition fuse |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3839962A (en) * | 1973-10-25 | 1974-10-08 | Us Army | Test projectile with primary and test fuzes |
| US4237788A (en) * | 1978-12-18 | 1980-12-09 | Ares, Inc. | Explosive fuse for ballistic projectile |
| US4592281A (en) * | 1982-07-29 | 1986-06-03 | Special Devices, Inc. | Arming and firing device |
| RU2228513C1 (en) * | 2002-10-02 | 2004-05-10 | Государственное унитарное предприятие "Федеральный научно-производственный центр "Прибор" | Mechanical fuse |
| WO2005005921A1 (en) * | 2003-07-15 | 2005-01-20 | Detnet South Africa (Pty) Ltd | Detonator fuse status detection |
| US20060260499A1 (en) * | 2005-01-28 | 2006-11-23 | Junghans Feinwerktechnik Gmbh & Co. Kg | Safety and arming device for a spinning projectile fuze |
| CN109405676A (en) * | 2018-09-25 | 2019-03-01 | 南京理工大学 | Hail mitigation with centrifugation self-destroying function increases rain bullet time ignition fuse |
| CN113503781A (en) * | 2021-08-26 | 2021-10-15 | 中国人民解放军32272部队51分队 | Rotary drop hammer type fuse test method |
| CN113503780A (en) * | 2021-08-26 | 2021-10-15 | 中国人民解放军32272部队51分队 | Drop type fuze test method |
-
2021
- 2021-11-22 CN CN202111383019.5A patent/CN114111473B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3839962A (en) * | 1973-10-25 | 1974-10-08 | Us Army | Test projectile with primary and test fuzes |
| US4237788A (en) * | 1978-12-18 | 1980-12-09 | Ares, Inc. | Explosive fuse for ballistic projectile |
| US4592281A (en) * | 1982-07-29 | 1986-06-03 | Special Devices, Inc. | Arming and firing device |
| RU2228513C1 (en) * | 2002-10-02 | 2004-05-10 | Государственное унитарное предприятие "Федеральный научно-производственный центр "Прибор" | Mechanical fuse |
| WO2005005921A1 (en) * | 2003-07-15 | 2005-01-20 | Detnet South Africa (Pty) Ltd | Detonator fuse status detection |
| US20060260499A1 (en) * | 2005-01-28 | 2006-11-23 | Junghans Feinwerktechnik Gmbh & Co. Kg | Safety and arming device for a spinning projectile fuze |
| CN109405676A (en) * | 2018-09-25 | 2019-03-01 | 南京理工大学 | Hail mitigation with centrifugation self-destroying function increases rain bullet time ignition fuse |
| CN113503781A (en) * | 2021-08-26 | 2021-10-15 | 中国人民解放军32272部队51分队 | Rotary drop hammer type fuse test method |
| CN113503780A (en) * | 2021-08-26 | 2021-10-15 | 中国人民解放军32272部队51分队 | Drop type fuze test method |
Non-Patent Citations (4)
| Title |
|---|
| 严慎武: "新型制导炮弹安全与解除保险装置设计研究", no. 01, pages 53 - 56 * |
| 施绍鲁等: "针刺端输出爆轰雷管在传爆序列中起爆特性仿真", 火工品, no. 5, pages 1 - 5 * |
| 王雨时等: "引信安全性现状分析与试验考核建议", 探测与控制学报, vol. 43, no. 4, pages 1 - 8 * |
| 赵玉清,陈振华: "小型针刺雷管在引信锤击试验中的安定性研究", vol. 24, no. 02, pages 58 - 60 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115325890A (en) * | 2022-08-15 | 2022-11-11 | 南京理工大学 | Explosion-proof high-safety ignition fuse |
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| CN114111473B (en) | 2023-10-13 |
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