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CN104267208A - Speed measuring membrane for explosive one-dimensional treadmill test - Google Patents

Speed measuring membrane for explosive one-dimensional treadmill test Download PDF

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Publication number
CN104267208A
CN104267208A CN201410479632.0A CN201410479632A CN104267208A CN 104267208 A CN104267208 A CN 104267208A CN 201410479632 A CN201410479632 A CN 201410479632A CN 104267208 A CN104267208 A CN 104267208A
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China
Prior art keywords
speed
diaphragm
test
target line
tests
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CN201410479632.0A
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Chinese (zh)
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CN104267208B (en
Inventor
徐洪涛
冯晓军
王晓峰
赵娟
田轩
封雪松
冯博
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Xian Modern Chemistry Research Institute
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Xian Modern Chemistry Research Institute
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Abstract

The invention discloses a speed measuring membrane for an explosive one-dimensional treadmill test. The speed measuring membrane solves the problems that optical measurement is adopted in the explosive one-dimensional treadmill test at present, so that the test is complex, cost is high, the test range is narrow, and a test result is judged manually. According to a main technical scheme, the speed measuring membrane is formed in a printed mode by adopting conductive silver adhesive according to a design circuit, and an outer frame is additionally arranged. Compared with a traditional speed measuring device, the speed measuring membrane is easy to assemble and wide in measuring range in the use process and is mainly applied to measurement of the speed of metal driven by detonation of explosives and powders.

Description

A kind of diaphragm that tests the speed for explosive one dimension treadmill test
Technical field
The invention belongs to explosive wastewater technical field, be specifically related to a kind of diaphragm that tests the speed for the test of explosive one dimension plate under detonation driving, adopt this diaphragm that tests the speed the speed of sheet metal can be driven to measure to explosive detonation in the test of explosive one dimension plate under detonation driving.
Background technology
The conventional explosive attribute testing that characterizes mainly includes explosion velocity, detonation pressure, quick-fried heat, quick-fried appearance and acting ability test at present.Drive the test of metal acting to have two kinds according to lattice Buddhist nun equation research explosive at present, one is cylinder test, and another kind is the test of one dimension plate under detonation driving.Wherein, cylinder test is a kind of common test investigating [explosive, generally determines detonation product JWL state equation parameter by this test.For ideal explosive, the cylinder test result of different-diameter meets the law of similitude, namely identical with energy value at the velocity amplitude of geometric similarity position, and it is consistent for testing obtained experimental state equation coefficient by different-diameter.And the current explosive major part grinding is composite explosives, due to the existence of particular/special requirement, containing a large amount of metal powders in some explosive formulation.Due to the rear validity of metal powder in detonation course of reaction, containing metal explosive has compared with wide chemical section length, critical diameter is large, propagation of explosion ability of detonating is more weak, and reaction product composition is complicated, there is follow-up secondary reaction, even repeatedly reacts.Shown by different size aluminum composition cylinder test, the capacity for work of aluminum composition does not meet the law of similitude.And the test of one dimension plate under detonation driving can observe explosive in longer test period drive lower movement of metallic process.
The scanning camera that adopts carries out the test of one dimension plate under detonation driving more both at home and abroad, and the measuring principle of the method is: film flying clashes into organic glass light after accelerating visits plate target.Light is visited plate and is made up of three pieces of rectangular strips, their surface finish, and upper surface is made up of with cover plate barium nitrate powder, and bench height difference is 4mm.Adopt scanning camera, maximum sweep rate 15km/s, 3 parallel distances are the slit of 20mm, aim at organic glass upper surface and impingement area through reflective mirror.The sweep trace of middle slit was the sweep trace in device axle center, coordinated with the scanning slit on both sides, can calculate the film flying impact velocity that radial distance is greater than the diverse location of slit separation 20mm under rotational symmetry supposition.In current national military standard 772A-97, method 705.4 " plane flyer velocity method " is also adopt the method, utilize high-velocity scanning camera and light to visit plate and measure film flying under detonation product drives, fly through 43mm to 47mm time interval of experiencing of distance, measurement be the average velocity of film flying in this region.
In current national military standard 772A-97, mainly there are the following problems for speed measuring device for method 705.4 " plane flyer velocity method ": (1) process of the test all needs light path to debug, and test is installed very complicated.(2) process of the test uses the testing equipment of the costlinesses such as high-velocity scanning camera, and experimentation cost is high.(3) measuring distance is short, and national military standard method is 43mm-47mm.(4) test figure all will carry out artificial data process according to the image after scanning or squiggle.Its test light path debugging is complicated, use the expensive device such as high-velocity scanning camera, test findings needs the waveform of the stripe pattern after according to scanning or data collecting instrument collection to carry out artificial data process, and the velocity amplitude of single-point or short distance zone leveling can only be exported, and experimentation cost is high, be unfavorable for explosive research experiment work in formula Design process.
Summary of the invention
For shortcomings and deficiencies of the prior art, the invention provides a kind of diaphragm that tests the speed for explosive one dimension treadmill test.
In order to realize above-mentioned task, the present invention takes following technical solution: a kind of diaphragm that tests the speed for explosive one dimension treadmill test, be made up of target line, base material, the diaphragm housing that tests the speed, target line is printed in the one side of base material by circuit, and the diaphragm housing Wear Characteristics of Epoxy Adhesive that tests the speed is attached to and tests the speed on diaphragm base material.The base material of the described diaphragm that tests the speed adopts flexible substrate material, and be insulating material polyethylene terephthalate (PET), base material one side corona treatment, thickness is not more than 0.125mm, and base material is of a size of 320mm × 320mm.Target line adopts conductive silver glue, and be take silver powder as the single-component epoxy conducting resinl of medium, the solid content of silver powder is greater than 80%, and fineness is less than 15 μm, and hardness is greater than 2H.Target line circuit adopts short circuit passband to design, target line width 3mm, interval 3mm, and target line circuit housing is of a size of 300mm × 300mm.The printing of target line adopts splash magnetically controlled sputter method, operates by the following step:
Step one: it is cut into size 320mm × 320mm by film substrate;
Step 2: film substrate is heated, 150-200 DEG C, continues 30 seconds;
Step 3: carry out partial pressure of ar gas, selects 0.01-1Pa;
Step 4: on rf magnetron sputtering device, input target line circuit drawing, regulation target line width 3mm, target distance between centers of tracks 3mm, circuit be two to the wooden comb form of inserting;
Step 5: carry out pre-sputtering to film substrate, removes film substrate oxide film by electronics bombardment method;
Step 6, sputters film substrate, makes conductive silver glue sputter out surfaces of conductive substrates and forms film, controls target line thickness 0.005-0.01mm;
Step 7, cools and unloading piece the film substrate printing conductive silver glue.
The described diaphragm housing that tests the speed adopts rigidity base circuit board material, is vibrin, and adopt Wear Characteristics of Epoxy Adhesive to be attached to and test the speed on diaphragm base material, double faced adhesive, housing housing thickness is 2mm, long 310mm, wide 10mm.
Beneficial effect of the present invention is embodied in the following aspects.
1) this diaphragm that tests the speed utilizes circuit turn-on principle, and on film, target line circuit is simple.
2) this diaphragm that tests the speed can be directly connected in time interval recorder and without the need to undergoing technological transformation to equipment, this time interval recorder is the standard set-up that explosive wastewater industry is measured for explosion velocity of explosive.After connecting rear time interval recorder or similar devices, the moment that metal plate touches the diaphragm that tests the speed produces an electric signal, directly writing time on time interval recorder.
3) adopt this diaphragm that tests the speed to carry out flyer velocity measurement, the test figure recorded does not need manually to carry out secondary interpretation analysis, on time interval recorder, directly shows film flying arrive measuring point.
4) this diaphragm that tests the speed is adopted can to arrive the time herein by optional position explosive-driven flying sheet in measuring distance film flying initial position 1cm to 20cm region, can lay multiple these kinds to test the speed diaphragm in this distance areas, the measurement spacing of two kinds of diaphragms need be greater than 1cm.
Accompanying drawing explanation
Fig. 1 is the diaphragm that tests the speed
Fig. 2 film splash printing production process charts
Embodiment
Below by embodiment, the present invention will be further explained.
See Fig. 1, the present invention adopts the base material 2 of the diaphragm that tests the speed to adopt flexible substrate material, for insulating material polyethylene terephthalate (PET) or equal performance materials, this film thickness is less than or equal to 0.125mm, and base material is of a size of 320mm × 320mm; Target line 1 adopts conductive silver glue, has well bonding and electric conductivity, and be a kind of solvent-free, take silver powder as the single-component epoxy conducting resinl of medium, the solid content of silver powder is greater than 80%, and fineness is less than 15 μm, and hardness is greater than 2H; Target line 1 circuit adopts short circuit passband to design, and circuit is two and designs the wooden comb inserted, target line 1 width 3mm, interval 3mm, and target line circuit housing 3 is of a size of 300mm × 300mm; Target line 1 prints the manufacturing process that the film → pre-pyrocondensation → acid-resistant layer printing → UC solidification → etching → demoulding → cleaning → Ag circuit printing (print elargol) → solidification is cut in employing; The diaphragm housing 3 that tests the speed adopts rigidity base circuit board material, is vibrin, and adopt Wear Characteristics of Epoxy Adhesive to be attached to and test the speed on diaphragm base material 2, double faced adhesive, housing housing thickness is 2mm, long 310mm, wide 10mm.
It is below the specific embodiment that inventor provides.
Embodiment 1:
The present embodiment adopts splash (magnetron sputtering), and make the diaphragm that tests the speed, Making programme is shown in Fig. 2, and its method for making comprises the following steps;
Step one: select the WC/EC film of du pont company as base material, heatproof 150 DEG C, one side corona treatment, is cut into 320mm × 320mm.
Step 2: clean film substrate, mainly removes surface contaminants and chemical dirt, and considers the alligatoring on surface, first by IPA vapor, cleaning by degreasing is carried out to substrate surface, fully rinse with circulating water subsequently, more successively at ethanol, after soaking in acetone, use dryer flash baking.
Step 3: take out base vacuum to base material, general control, at 2 × more than 10-4, to reduce the residual gas in vacuum cavity as far as possible, ensures the clarity of film substrate.
Step 4: heat film substrate, eliminates film substrate stress, improves the concentration class of rete particle, is selected in 150-200 DEG C.
Step 5: carry out partial pressure of ar gas, d.c. sputtering sets up to meet aura and put air pressure conditions a little, selection 0.01-1Pa.
Step 6: on rf magnetron sputtering device, input target line circuit drawing, regulation target line width 3mm, target distance between centers of tracks 3mm, circuit be two to the wooden comb form of inserting.
Step 7: carry out pre-sputtering to film substrate, the method for being bombarded by electronics removes film substrate oxide film.
Step 8, sputters film substrate, makes conductive silver glue sputter out surfaces of conductive substrates and forms film, controls target line thickness 0.005-0.01mm.
Step 9, cools and unloading piece the film substrate printing conductive silver glue.
Step 10, carries out visual examination to the diaphragm that tests the speed after printing, checks circuit.
Step 11 is material with vibrin, and being processed into housing thickness is 2mm, long 310mm, wide 10mm, and adopt Wear Characteristics of Epoxy Adhesive to be attached to and test the speed on diaphragm base material, double faced adhesive, is made into the diaphragm that tests the speed.
Embodiment 2:
The diaphragm process that tests the speed is undertaken by embodiment 1.
This test, adopt hexogen explosive to drive metal film flying to test, size of powder charge is ф 40mm × 40mm, sheet metal size ф 40mm × 5mm.The diaphragm that tests the speed is arranged on apart from the position of film flying certain distance.Carried out 5 tests altogether, test findings is in table 1.△ L is the distance between every section of measuring point, △ t be film flying by corresponding △ L apart from the time used.
Table 1RDX film flying test figure

Claims (6)

1. the diaphragm that tests the speed for explosive one dimension treadmill test, it is characterized in that being made up of target line (1), base material (2), the diaphragm housing (3) that tests the speed, target line (1) is printed in the one side of base material (2) by circuit, and diaphragm housing (3) Wear Characteristics of Epoxy Adhesive that tests the speed is attached to and tests the speed on diaphragm base material (2).
2. test the speed diaphragm as claimed in claim 1, it is characterized in that, described base material (2) one side corona treatment, thickness is not more than 0.125mm, and base material is of a size of 320mm × 320mm.
3. test the speed diaphragm as claimed in claim 1, it is characterized in that, described target line (1) adopts conductive silver glue, and be take silver powder as the single-component epoxy conducting resinl of medium, the solid content of silver powder is greater than 80%, and fineness is less than 15 μm, and hardness is greater than 2H.
4. test the speed diaphragm as claimed in claim 1, it is characterized in that, described target line (1) circuit adopts short circuit passband to design, and target line 1 width 3mm, interval 3mm, target line circuit housing 3 is of a size of 300mm × 300mm.
5. test the speed diaphragm as claimed in claim 1, it is characterized in that, the printing of described target line (1) adopts splash magnetically controlled sputter method, operates by the following step:
Step one: it is cut into size 320mm × 320mm by film substrate;
Step 2: film substrate is heated, 150-200 DEG C, continues 30 seconds;
Step 3: carry out partial pressure of ar gas, selects 0.01-1Pa;
Step 4: on rf magnetron sputtering device, input target line circuit drawing, regulation target line width 3mm, target distance between centers of tracks 3mm, circuit be two to the wooden comb form of inserting;
Step 5: carry out pre-sputtering to film substrate, removes film substrate oxide film by electronics bombardment method;
Step 6, sputters film substrate, makes conductive silver glue sputter out surfaces of conductive substrates and forms film, controls target line thickness 0.005-0.01mm;
Step 7, cools and unloading piece the film substrate printing conductive silver glue.
6. test the speed diaphragm as claimed in claim 1, it is characterized in that, the diaphragm housing (3) that tests the speed adopts rigidity base circuit board material, for vibrin, adopting Wear Characteristics of Epoxy Adhesive to be attached to tests the speed on diaphragm base material (2), double faced adhesive, and housing housing thickness is 2mm, long 310mm, wide 10mm.
CN201410479632.0A 2014-09-18 2014-09-18 A kind of diaphragm that tests the speed for the one-dimensional treadmill test of explosive Expired - Fee Related CN104267208B (en)

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CN201410479632.0A CN104267208B (en) 2014-09-18 2014-09-18 A kind of diaphragm that tests the speed for the one-dimensional treadmill test of explosive

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Application Number Priority Date Filing Date Title
CN201410479632.0A CN104267208B (en) 2014-09-18 2014-09-18 A kind of diaphragm that tests the speed for the one-dimensional treadmill test of explosive

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CN104267208B CN104267208B (en) 2017-09-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112946229A (en) * 2021-01-29 2021-06-11 北京理工大学 Method for acquiring performance of aluminum-containing explosive based on cylinder-sheet device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101781541B (en) * 2010-02-02 2012-12-05 华南理工大学 In situ preparation method of nano silver/epoxy conductive adhesive
CN102128950B (en) * 2010-12-20 2012-08-22 中北大学 Parallel network target speed test device
CN103436851B (en) * 2013-08-13 2016-02-24 西安理工大学 A kind of arc extinction method for magnetron sputtering technique
CN103471943B (en) * 2013-09-17 2015-10-14 中国工程物理研究院化工材料研究所 A kind of Pneumatic acceleration striking experiment method
CN104034859B (en) * 2014-04-23 2016-01-13 西安近代化学研究所 Explosive charge drives the measurement mechanism of metal ability

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112946229A (en) * 2021-01-29 2021-06-11 北京理工大学 Method for acquiring performance of aluminum-containing explosive based on cylinder-sheet device
CN112946229B (en) * 2021-01-29 2023-03-14 北京理工大学 Method for acquiring performance of aluminum-containing explosive based on cylinder-sheet device

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