CN205826440U - Inner tube speed of expansion measurement apparatus during metal tube Explosion composite - Google Patents
Inner tube speed of expansion measurement apparatus during metal tube Explosion composite Download PDFInfo
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- CN205826440U CN205826440U CN201620713684.4U CN201620713684U CN205826440U CN 205826440 U CN205826440 U CN 205826440U CN 201620713684 U CN201620713684 U CN 201620713684U CN 205826440 U CN205826440 U CN 205826440U
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Abstract
Inner tube speed of expansion measurement apparatus when the utility model discloses a kind of metal tube Explosion composite, described device includes primacord, initiator, metal tube, transmission medium, data collecting instrument and pressure transducer, described primacord is by igniting after initiator detonating capsule, described metal tube includes inner layer metal pipe and outer layer metal tube, described pressure transducer is pasted onto on the position of inner layer metal inside pipe wall radial symmetric in pairs, and be connected with data collecting instrument, described inner layer metal pipe passes outer layer metal tube centerlock, described primacord passes inner layer metal pipe centerlock, described transmission medium is arranged in inner layer metal pipe.By pressure time-process curve during data collecting instrument record Explosion composite, the interval time determined according to bimodal in curve and inside and outside metal tube distance computation inner metal tube speed of expansion, can be the determination offer foundation of metal tube Parameters of Explosive Cladding, thus reach preferable composite effect.
Description
Technical field
This utility model relates to a kind of measurement apparatus, and especially during a kind of metal tube Explosion composite, inner tube speed of expansion is measured
Device, belongs to Explosion composite technical field.
Background technology
Along with the development of modern industry, the performance of single metal tube has been difficult to meet demand of industrial production, and compound
The advantage that metal tube combines each metal tube, it is possible to obtain the composite performance that single metal tube does not possesses.Explosion composite is profit
The controlled huge energy produced with explosive charge and shock wave, make different metal pipe high velocity impact under certain collision angle,
The point of impingement produces High Temperature High Pressure and makes the metal material near the point of impingement produce intense plastic strain, and realizes different metal material
The high-quality metallurgical binding technology of combination.Explosion composite method can realize the compound of various metals pipe, and its Explosion composite efficiency is high, covers
Layer metal tube thickness is controlled, and interface bond strength is high, is a kind of ideal composite pipe production method, then Explosion composite institute
Need condition harsh, it is necessary to can be only achieved preferable composite effect in narrow " blast window ", it is therefore desirable to a kind of test side
Method obtains the speed of expansion of inner layer metal pipe, and it can be metal tube Explosion composite dose and the determination of ectonexine metal tube spacing
Foundation is provided, and cladding plate stroke speed when conventional High Speed Photography may be only available for measuring metallic plate Explosion composite, it is impossible to
Measure for multiple tube inner tube speed of expansion.
Utility model content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, it is provided that interior during a kind of metal tube Explosion composite
Tube swelling velocity measuring device, this device is the most easy and simple to handle, and its inner layer metal tube swelling speed obtained can be
The determination of metal tube Parameters of Explosive Cladding provides foundation, thus reaches preferable composite effect.
The purpose of this utility model can be achieved through the following technical solutions:
Inner tube speed of expansion measurement apparatus during metal tube Explosion composite, including primacord and initiator, described primacord leads to
Ignite after crossing initiator detonating capsule, also include metal tube, transmission medium, data collecting instrument and pressure transducer, described metal
Pipe includes that inner layer metal pipe and outer layer metal tube, described pressure transducer are pasted onto inner layer metal inside pipe wall radial symmetric in pairs
On position, and be connected with data collecting instrument, described inner layer metal pipe pass outer layer metal tube centerlock, described in lead
Quick-fried rope passes inner layer metal pipe centerlock, and described transmission medium is arranged in inner layer metal pipe.
During measurement, by initiator detonating capsule, primacord is ignited, under the effect of transmission medium, primacord is exploded
Time produce pressure stepless action on inner layer metal pipe, make inner layer metal tube swelling and clash into outer layer metal tube, simultaneously data
Acquisition Instrument recorded pressure time-process curve during Explosion composite by pressure transducer；During calculating, in transmission medium is acted on
Produce incident pressure (first peak value) during metal tube and be designated as inner tube expansion start time, inner metal tube is clashed into outer metal tube and produces
Raw reflected pressure (second peak value) is designated as the interior tube swelling end time, then according to bimodal interval time in curve and interior
Outer metal tube distance computation inner metal tube speed of expansion.
Preferably, described pressure transducer has 2n, is arranged in internal layer gold after 2n pressure transducer radial symmetric combination
Belong on the position that inside pipe wall is specified；Wherein, n >=1, and be natural number.
Preferably, described pressure transducer is film like structures.
Preferably, described pressure transducer is PVDF pressure transducer or alloy thin film pressure sensor.
Preferably, described pressure transducer leaded through inner layer metal pipe from the contrary one end of fuse arming test experiment initiation end
Draw.
Preferably, having gap between described inner layer metal pipe outer wall and outer layer metal inside pipe wall, this gap can make internal layer
Metal tube expands after primacord explodes and clashes into outer layer metal tube.
Preferably, described inner layer metal pipe is aluminum pipe or copper pipe, and described outer layer metal tube is steel pipe or cast iron pipe.
Preferably, the length of described primacord more than inner layer metal pipe and outer layer metal tube length, this primacord
Inner layer metal pipe certain length is stretched out in bottom.
Preferably, described transmission medium is liquid；Described data collecting instrument is oscillograph or capture card, and its sample frequency is not
Less than 10M/s.
Preferably, described primacord is aluminum hull primacord or industrial detonating fuse, and described initiator is high energy pulse initiator
Or Laser Initiating Device.
This utility model compared with prior art, has the advantage that and beneficial effect:
1, the primacord explosion energy in this utility model is to be acted on by transmission medium so that pressure transducer is surveyed
The most damaged thus reflected pressure can be recorded after incident pressure simultaneously, the pressure time-process curve i.e. obtained has bimodal feature,
Therefore can obtain, by single pressure sensor, the average speed that inner metal tube expands, it can be metal tube Parameters of Explosive Cladding
Determination foundation is provided, thus reach preferable composite effect, additionally the incident pressure of the inner layer metal pipe of pressure transducer record
Power and inner layer metal pipe clash into outer layer metal tube generation reflected pressure time-history curves and are alternatively metal tube Parameters of Explosive Cladding
Offer reference is provided.
2, the pressure transducer in this utility model has 2n (n >=1, and be natural number) individual, and as n ＞ 1,2n pressure passes
Can be equally spaced on a bus of inner layer metal inside pipe wall after the combination of sensor radial symmetric, by pressure transducer axially between
The pressing speed of metal tube compound tense is calculated, then according to inner layer metal tube swelling speed and pressure away from the time interval with record
Sum velocity obtains the pressing angle after metal tube is combined, thus adjusts for explosion velocity of explosive and provide foundation.
3, the pressure transducer in this utility model is arranged on the position of inner metal tube inwall radial symmetric, can effectively subtract
Few error caused because of inner layer metal pipe and outer layer metal tube position deviation, thus improve certainty of measurement.
Accompanying drawing explanation
Inner tube speed of expansion measurement apparatus structural representation when Fig. 1 is the metal tube Explosion composite of this utility model embodiment 1
Figure.
Data acquisition in inner tube speed of expansion measurement apparatus when Fig. 2 is the metal tube Explosion composite of this utility model embodiment 1
The pressure time-process curve chart that collection instrument collects.
Wherein, 1-primacord, 2-initiator, 3-transmission medium, 4-data collecting instrument, 5-pressure transducer, 6-detonator, 7-
Inner layer metal pipe, 8-outer layer metal tube.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, this utility model is described in further detail, but enforcement of the present utility model
Mode is not limited to this.
Embodiment 1:
As it is shown in figure 1, inner tube speed of expansion measurement apparatus, this dress when present embodiments providing a kind of metal tube Explosion composite
Putting and include primacord 1, initiator 2, metal tube, transmission medium 3, data collecting instrument 4 and pressure transducer 5, described primacord 1 leads to
Igniting after crossing initiator 2 detonating capsule 6, described metal tube includes inner layer metal pipe 7 and outer layer metal tube 8, described pressure sensing
Device 5 is pasted onto on the position of inner layer metal pipe 7 inwall radial symmetric in pairs, and is connected with data collecting instrument 4, described inner layer metal
Pipe 7 through inner layer metal pipe 7 and is fixed on interposition through outer layer metal tube 8 centerlock, described primacord 1
Putting, described transmission medium 3 is arranged in inner layer metal pipe 7.
Described pressure transducer 5 is arranged on the position of inner layer metal pipe 7 inwall radial symmetric, it is possible to reduce because of internal layer gold
The error belonging to pipe 7 and the position deviation of outer layer metal tube 8 and cause, they are film like structures, it is preferred to use PVDF
(Polyvinylidene Fluoride, polyvinyladine floride, through polarization) pressure transducer, each PVDF pressure transducer
Size is 3mm × 6mm, and each PVDF pressure transducer is not damaged by after primacord 1 explodes, and therefore can measure internal layer gold simultaneously
Genus pipe 7 inwall incident pressure and inner layer metal pipe 7 clash into the reflected pressure time-history curves of outer layer metal tube 8；Pressure transducer 5
Leaded draw through inner layer metal pipe 7 from the contrary one end of primacord 1 initiation ends, it is to avoid it is before collecting complete signal
Blown up by primacord 1.
Described inner layer metal pipe 7 can be aluminum pipe, and its external diameter is 30mm, and internal diameter is 28mm, a length of 40cm, outer layer metal
Pipe 8 can be steel pipe, and its external diameter is 38mm, internal diameter 32mm, a length of 35cm；Described inner layer metal pipe 7 outer wall and outer layer metal
Having gap between pipe 8 inwall, this gap can not be excessive, it is ensured that outside inner layer metal pipe 7 expands and clashes into after primacord 1 explodes
Layer metal tube 8, makes pressure transducer 5 can record reflected pressure.
The line density of described primacord 1 and explosion velocity need to meet Explosion composite requirement, can use aluminum hull primacord, its external diameter
2mm, internal diameter is 1.4mm, and line density is 2.0g/m, whole length more than inner layer metal pipe 7 and outer layer metal tube 8 length,
Inner layer metal pipe 7 certain length is stretched out in the bottom of this primacord 1, it is simple to ignite primacord 1.
Described initiator 2 can use high energy pulse initiator, by the way of detonating capsule 6, is ignited by primacord 1；
Wherein, the detonator 6 that the present embodiment uses is Nonel detonator.
Described transmission medium 3 has the advantages that mobility is the least with compressibility, can use water, and it can be by primacord
The pressure stepless action that 1 explosion time produces is on inner layer metal pipe 7.
Described data collecting instrument 4 has storage function and has enough memory lengths and higher sample frequency, can use
Tyke oscillograph, its sample frequency is 50M/s.
During the metal tube Explosion composite of the present embodiment, inner tube speed of expansion measurement apparatus operation principle is:
Primacord 1, by the way of detonating capsule 6, is ignited by initiator 2, under the effect of transmission medium 3, by primacord
The pressure stepless action that 1 explosion time produces, on inner layer metal pipe 7, makes inner layer metal pipe 7 expand and clash into outer layer metal tube 8,
Being compounded on outer layer metal tube 8 by inner layer metal pipe 7, to collect metal tube by pressure transducer 5 quick-fried for data collecting instrument 4 simultaneously
Fried pressure time-process curve corresponding to compound tense, as in figure 2 it is shown, the pressure corresponding to pressure transducer 5 in symmetric position
Time-history curves bimodal interval time, (Δ t) was respectively 3.91 μ s, 3.17 μ s, in conjunction with between inner layer metal pipe 7 and outer layer metal tube 8
Spacing (refer to the half of difference between inner layer metal pipe external diameter and outer layer metal bore, i.e. (32mm-30mm) 2=1mm,
Represent with Δ L), according to speed calculation formula, (speed of expansion that v=Δ L/ Δ t) calculates is respectively 255.75m/s, 315.45m/
S, therefore the inner layer metal pipe 7 speed of expansion meansigma methods when Explosion composite is 285.6m/s.
Embodiment 2:
Inner tube speed of expansion measuring method when present embodiments providing a kind of metal tube Explosion composite, the method includes following
Step:
Step one, the inner layer metal pipe that selection material meets the requirements and size matches and outer layer metal tube；
Step 2, pressure transducer is pasted onto the most in pairs on the position of inner layer metal inside pipe wall radial symmetric；
Step 3, pressure transducer is connected with data collecting instrument respectively；
Step 4, by inner layer metal pipe through outer layer metal tube centerlock；
Step 5, by primacord through inner layer metal pipe centerlock；
Step 6, the bottom of inner layer metal pipe is blocked, inject water in inner layer metal pipe；
Step 7, primacord bottom is connected detonator after, utilize and ignite primacord after initiator detonating capsule；
Step 8, detonate after, inner layer metal pipe is compounded on outer layer metal tube, data collecting instrument passes through pressure transducer
Collect pressure time-process curve corresponding during metal tube Explosion composite；
Step 9, according to the interval time determined bimodal in the pressure time-process curve corresponding to pressure transducer and interior
Spacing between layer metal tube and outer layer metal tube, calculates the average speed of inner layer metal tube swelling.
Owing to the explosion energy of primacord is acted on by transmission medium so that pressure transducer records incident pressure
During power destroyed thus reflected pressure can be recorded simultaneously, the most finally can be according in pressure time-process curve, bimodal determines between
Spacing between interval, and inner layer metal pipe and outer layer metal tube, calculates the average speed of inner layer metal tube swelling；Measure
Time pressure transducer need to be arranged on the position of inner layer metal inside pipe wall radial symmetric, it is possible to reduce because of inner layer metal pipe and outer layer
The position deviation of metal tube and the error that causes；Gap between inner layer metal pipe and outer layer metal tube can not be excessive, it is ensured that internal layer
Metal tube expands after primacord explodes and clashes into outer layer metal tube, makes pressure transducer can measure reflected pressure；Pressure sensing
Device leaded draw through inner tube from the other end of fuse arming test experiment initiation end, it is to avoid it is quilt before collecting complete signal
Primacord is blown up.
Embodiment 3:
Being mainly characterized by of the present embodiment: described pressure transducer has 2n (n >=1, and be natural number) individual, as n=1 is
The situation of above-described embodiment 1, as n ＞ 1, can be equally spaced at inner layer metal after 2n pressure transducer radial symmetric combination
On one bus of inside pipe wall, calculated the pressing of metal tube compound tense by the time interval of pressure transducer axial spacing with record
Speed, then obtains the pressing angle after metal tube is combined according to inner layer metal tube swelling speed and pressing speed, thus is
Explosion velocity of explosive adjusts provides foundation.
In sum, the inner layer metal pipe during metal tube Explosion composite that this utility model is measured by pressure transducer is swollen
Swollen speed, can be that the determination of metal tube Parameters of Explosive Cladding provides foundation, thus reach preferable composite effect, additionally pressure passes
The incident pressure of the inner layer metal pipe of sensor record and inner layer metal pipe clash into outer layer metal tube and produce reflected pressure time-histories song
Line is alternatively the determination of metal tube complex parameter and provides reference.
The above, only this utility model patent preferred embodiment, but the protection domain of this utility model patent is also
Being not limited to this, such as pressure transducer can also use alloy thin film pressure sensor, inner layer metal pipe can also use copper
Pipe, outer layer metal tube can also use cast iron pipe, and transmission medium can also use other liquid, and data collecting instrument can also use
Capture card, primacord can also use industrial detonating fuse, and initiator can also use Laser Initiating Device etc., any is familiar with this technology
The technical staff in field in the scope disclosed in this utility model patent, according to the technical scheme of this utility model patent and
Utility model patent conceives equivalent or change in addition, broadly falls into the protection domain of this utility model patent.
Claims (10)
1. inner tube speed of expansion measurement apparatus during metal tube Explosion composite, including primacord and initiator, described primacord passes through
Ignite after initiator detonating capsule, it is characterised in that: also include metal tube, transmission medium, data collecting instrument and pressure transducer,
Described metal tube includes that inner layer metal pipe and outer layer metal tube, described pressure transducer are pasted onto inner layer metal inside pipe wall footpath in pairs
On symmetrical position, and being connected with data collecting instrument, described inner layer metal pipe is through outer layer metal tube and is fixed on interposition
Putting, described primacord passes inner layer metal pipe centerlock, and described transmission medium is arranged in inner layer metal pipe.
Inner tube speed of expansion measurement apparatus during metal tube Explosion composite the most according to claim 1, it is characterised in that: described
Pressure transducer has 2n, is arranged in, after 2n pressure transducer radial symmetric combination, the position that inner layer metal inside pipe wall is specified
On；Wherein, n >=1, and be natural number.
Inner tube speed of expansion measurement apparatus during metal tube Explosion composite the most according to claim 1 and 2, it is characterised in that:
Described pressure transducer is film like structures.
Inner tube speed of expansion measurement apparatus during metal tube Explosion composite the most according to claim 3, it is characterised in that: described
Pressure transducer is PVDF pressure transducer or alloy thin film pressure sensor.
Inner tube speed of expansion measurement apparatus during metal tube Explosion composite the most according to claim 1 and 2, it is characterised in that:
Described pressure transducer leaded draw through inner layer metal pipe from the contrary one end of fuse arming test experiment initiation end.
Inner tube speed of expansion measurement apparatus during metal tube Explosion composite the most according to claim 1 and 2, it is characterised in that:
Having gap between described inner layer metal pipe outer wall and outer layer metal inside pipe wall, this gap can make inner layer metal pipe quick-fried at primacord
Expand after Zha and clash into outer layer metal tube.
Inner tube speed of expansion measurement apparatus during metal tube Explosion composite the most according to claim 6, it is characterised in that: described
Inner layer metal pipe is aluminum pipe or copper pipe, and described outer layer metal tube is steel pipe or cast iron pipe.
Inner tube speed of expansion measurement apparatus during metal tube Explosion composite the most according to claim 1 and 2, it is characterised in that:
The length of described primacord is more than inner layer metal pipe and the length of outer layer metal tube, and inner layer metal pipe is stretched out in the bottom of this primacord
Certain length.
Inner tube speed of expansion measurement apparatus during metal tube Explosion composite the most according to claim 1 and 2, it is characterised in that:
Described transmission medium is liquid；Described data collecting instrument is oscillograph or capture card, and its sample frequency is not less than 10M/s.
Inner tube speed of expansion measurement apparatus during metal tube Explosion composite the most according to claim 1 and 2, it is characterised in that:
Described primacord is aluminum hull primacord or industrial detonating fuse, and described initiator is high energy pulse initiator or Laser Initiating Device.
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| CN201620713684.4U CN205826440U (en) | 2016-07-07 | 2016-07-07 | Inner tube speed of expansion measurement apparatus during metal tube Explosion composite |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105928809A (en) * | 2016-07-07 | 2016-09-07 | 宏大矿业有限公司 | Inner tube expansion rate measurement device and inner tube expansion rate measurement method during explosive cladding of metal tube |
| CN106949824A (en) * | 2017-04-17 | 2017-07-14 | 中水东北勘测设计研究有限责任公司 | Underwater sludge blasting cavities radius electrode array test method |
| CN110411870A (en) * | 2019-08-09 | 2019-11-05 | 湖南大学 | Plane detonation wave load testing machine |
| WO2023000730A1 (en) * | 2021-07-21 | 2023-01-26 | 保利新联爆破工程集团有限公司 | Method and device for measuring hole wall pressure on basis of pvdf pressure sensor |
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2016
- 2016-07-07 CN CN201620713684.4U patent/CN205826440U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928809A (en) * | 2016-07-07 | 2016-09-07 | 宏大矿业有限公司 | Inner tube expansion rate measurement device and inner tube expansion rate measurement method during explosive cladding of metal tube |
| CN105928809B (en) * | 2016-07-07 | 2019-03-08 | 广东宏大增化民爆有限责任公司 | Inner tube speed of expansion measuring device and measuring method when metal tube Explosion composite |
| CN106949824A (en) * | 2017-04-17 | 2017-07-14 | 中水东北勘测设计研究有限责任公司 | Underwater sludge blasting cavities radius electrode array test method |
| CN110411870A (en) * | 2019-08-09 | 2019-11-05 | 湖南大学 | Plane detonation wave load testing machine |
| CN110411870B (en) * | 2019-08-09 | 2024-05-03 | 湖南大学 | Plane explosive wave loading test device |
| WO2023000730A1 (en) * | 2021-07-21 | 2023-01-26 | 保利新联爆破工程集团有限公司 | Method and device for measuring hole wall pressure on basis of pvdf pressure sensor |
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