CN205826441U - Inner tube speed of expansion measurement apparatus during a kind of metal tube Explosion composite - Google Patents
Inner tube speed of expansion measurement apparatus during a kind of metal tube Explosion composite Download PDFInfo
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- CN205826441U CN205826441U CN201620721249.6U CN201620721249U CN205826441U CN 205826441 U CN205826441 U CN 205826441U CN 201620721249 U CN201620721249 U CN 201620721249U CN 205826441 U CN205826441 U CN 205826441U
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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 explosive, initiator, metal tube, data collecting instrument and two pairs of pressure transducers, described explosive is by igniting after initiator detonating capsule, described metal tube includes inner layer metal pipe and outer layer metal tube, two pairs of pressure transducers are positioned on the position of metal tube radial symmetric, and two pressure transducers in every pair of pressure transducer are respectively adhered on inner layer metal inside pipe wall and outer layer metal inside pipe wall position, same direction radially, and be connected with data collecting instrument respectively, described explosive is arranged in inner layer metal pipe, described inner layer metal pipe is fixed on outer layer metal tube center.This utility model is by pressure time-process curve during data collecting instrument record Explosion composite, according to starting point time interval and the inside and outside layer metal tube distance computation inner layer metal tube swelling speed of curve, can be that the design of metal tube Parameters of Explosive Cladding provides foundation.
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 technology of the high-quality metallurgical binding of combination.Explosion composite method can realize the compound of various metals pipe, and its Explosion composite efficiency is high,
Coating metal tube thickness is controlled, and interface bond strength is high, is a kind of ideal composite pipe production method, but Explosion composite
Required condition is 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
Method obtains the expansion stroke speed of inner layer metal pipe, and it can be that the design of metal tube Parameters of Explosive Cladding provides foundation, and commonly uses
High Speed Photography may be only available for measure metallic plate Explosion composite time cladding plate stroke speed, it is impossible to swollen for multiple tube inner tube
Swollen tachometric survey.
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 design 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 a kind of metal tube Explosion composite, including explosive and initiator, described explosive leads to
Igniting after crossing initiator detonating capsule, also include metal tube, data collecting instrument and two pairs of pressure transducers, described metal tube includes
Inner layer metal pipe and outer layer metal tube, two pairs of pressure transducers are positioned on the position of metal tube radial symmetric, and every pair of pressure passes
Two pressure transducers in sensor are respectively adhered on inner layer metal inside pipe wall and outer layer metal inside pipe wall same direction radially
On position, and being connected with data collecting instrument respectively, described explosive is arranged in inner layer metal pipe, and described inner layer metal pipe is fixed on
Outer layer metal tube center.
Preferably, described pressure transducer is film like structures.
Preferably, described pressure transducer is PVDF pressure transducer or alloy thin film pressure sensor.
Preferably, the lead-in wire of pressure transducer of inner layer metal inside pipe wall it is pasted onto from inner layer metal pipe and explosive initiation end
Contrary one end is drawn.
Preferably, layer protective layer is posted on the pressure transducer surface being pasted onto inner layer metal inside pipe wall.
Preferably, the lead-in wire of the pressure transducer being pasted onto outer layer metal inside pipe wall is drawn from the otch of outer layer metal tube.
Preferably, between described inner layer metal pipe outer wall and outer layer metal inside pipe wall, there is gap.
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, described data collecting instrument is oscillograph or capture card, and its sample frequency is not less than 10M/s.
Preferably, described explosive is low-density, low explosive, and described initiator is high energy pulse initiator or laser rises
Quick-fried device.
This utility model compared with prior art, has the advantage that and beneficial effect:
1, this utility model is by explosive initiation by the way of initiator detonating capsule, makes inner layer metal tube swelling and clashes into
Outer layer metal tube, is compounded in inner layer metal pipe on outer layer metal tube, and data collecting instrument is collected by two pairs of pressure transducers
Pressure time-process curve corresponding during metal tube Explosion composite, corresponding to two pressure transducers in every pair of pressure transducer
The starting point time interval of pressure time-process curve, and the spacing between inner layer metal pipe and outer layer metal tube, calculate internal layer
The average speed that metal tube expands, it can be the determination offer of metal tube Explosion composite dose and inside and outside layer metal tube spacing
Foundation, thus reach preferable composite effect, additionally it is also applied for measuring cladding plate stroke speed during metallic plate Explosion composite.
2, this utility model can record inner layer metal pipe shock outer layer metal tube by data collecting instrument and produce shock
Pressure time-process curve, the Parameters of Explosive Cladding for metal tube adjusts offer reference.
3, two pairs of pressure transducers of the present utility model are positioned on the position of metal tube radial symmetric, are effectively reduced because of interior
The position deviation of layer metal tube and outer layer metal tube and the error that causes, 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-explosive, 2-initiator, 3-data collecting instrument, 4-pressure transducer, 5-detonator, 6-inner layer metal pipe, 7-
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 explosive 1, initiator 2, metal tube, data collecting instrument 3 and two pairs of pressure transducers 4, described explosive 1 is by initiator 2
Igniting after detonating capsule 5, described metal tube includes that inner layer metal pipe 6 and outer layer metal tube 7, two pairs of pressure transducers 4 are positioned at gold
Belong on the position of pipe radial symmetric, and two pressure transducers 4 in every pair of pressure transducer 4 are respectively adhered on inner layer metal pipe
On 6 inwalls and outer layer metal tube 7 inwall position, same direction radially, and being connected with data collecting instrument respectively, described explosive 1 sets
Putting in inner layer metal pipe 6, described inner layer metal pipe 6 is fixed on outer layer metal tube 7 center.
Described two pairs of pressure transducers 4 are positioned on the position of metal tube radial symmetric, it is possible to reduce because of inner layer metal pipe 7 with
The position deviation of outer layer metal tube 8 and the error that causes, four pressure transducers 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 response time is fast, can record inner layer metal pipe 6 inwall incident pressure respectively
And inner layer metal pipe 6 clashes into the shock pressure time-process curve of outer layer metal tube 7；The pressure being pasted onto inner layer metal inside pipe wall passes
The lead-in wire of sensor is drawn through inner layer metal pipe from the contrary one end of explosive initiation end, it is to avoid it initiates collecting incident pressure
Being blown up by explosive before Dian, layer protective layer is posted on the pressure transducer surface being pasted onto inner layer metal inside pipe wall, it is ensured that it can be adopted
Collection, to signal, is pasted onto the lead-in wire at the pressure transducer of outer layer inner wall of metal tube and draws from the otch of outer layer metal tube, it is to avoid
Lead-in wire interference blast bonding processes.
Described inner layer metal pipe 6 can be aluminum pipe, and its external diameter is 30mm, and internal diameter is 28mm, a length of 40cm, outer layer metal
Pipe 7 can be steel pipe, and its external diameter is 38mm, internal diameter 32mm, a length of 35cm；Described inner layer metal pipe 6 outer wall and outer layer metal
Having gap between pipe 7 inwall, this gap can not be excessive, it is ensured that outside inner layer metal pipe 6 expands and can clash into after explosive 1 explodes
Layer metal tube 7, makes the pressure transducer 4 on outer layer metal tube 7 inwall can record inner layer metal pipe 6 and clashes into outer layer metal tube 7
Pressure.
Described explosive 1 is low-density, low explosive, and such as mining explosive, its density is 0.7g/cm3, and thickness is 7mm, quick-fried
Speed is 1600m/s～2000m/s；
Described initiator 2 can use high energy pulse initiator, by the way of detonating capsule 6, is ignited by explosive 1；Its
In, the detonator 6 that the present embodiment uses is Nonel detonator.
Described data collecting instrument 3 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:
Explosive 1, by the way of detonating capsule 5, is ignited by initiator 2, makes inner layer metal pipe 6 expand and clash into outer layer gold
Belonging to pipe 7, be compounded on outer layer metal tube 7 by inner layer metal pipe 6, data collecting instrument 3 is collected by two pairs of pressure transducers 4
Pressure time-process curve corresponding during metal tube Explosion composite, as in figure 2 it is shown, the two pairs of pressure being positioned at metal tube radial symmetric pass
Sensor 4, in one pair of which pressure transducer 4 between the starting point time of pressure time-process curve corresponding to two pressure transducers 4
It is divided into 2.87 μ s, another starting point time to the pressure time-process curve corresponding to two pressure transducers 4 in pressure transducer 4
Being spaced apart 2.72 μ s, (Δ t) is 2.795 μ s to Mean Time Between Replacement, between inner layer metal pipe 6 and outer layer metal tube 7
Away from (referring to the half of difference between inner layer metal pipe external diameter and outer layer metal bore, i.e. (32mm-30mm) 2=1mm, uses Δ L
Represent), according to speed calculation formula, (the inner layer metal pipe 6 that v=Δ L/ Δ t) the calculates speed of expansion when Explosion composite is average
Value is 357.78m/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, two pairs of pressure transducers are arranged on the position of radial symmetric, and two in every pair of pressure transducer
Individual pressure transducer is respectively adhered on inner layer metal inside pipe wall and outer layer metal inside pipe wall position, same direction radially；
Step 3, by two, pressure transducer is connected with data collecting instrument respectively；
Step 4, the inner layer metal pipe that will be equipped with explosive are fixed on outer layer metal tube center；
Step 5, utilize ignition charge after initiator detonating capsule；
Step 6, detonate after, inner layer metal pipe is compounded on outer layer metal tube, data collecting instrument is passed by the two pairs of pressure
Sensor collects pressure time-process curve corresponding during metal tube Explosion composite；
Step 7, starting point time interval according to the pressure time-process curve corresponding to every pair of 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 explosive acts directly on inner layer metal pipe so that the pressure transducer being pasted onto inner layer metal inside pipe wall is too early
Wrecking, it can only collect the ascent stage of incident pressure and can not collect inner layer metal pipe and clash into outer layer metal tube generation
Reflected pressure, therefore only be pasted onto outer layer metal inside pipe wall pressure transducer obtain inner layer metal pipe clash into outer layer
Metal tube produces and clashes into pressure time-process curve, finally according to starting point and the inner layer metal pipe of inner layer metal pipe incident pressure curve
Clash into outer layer metal tube and produce starting point time interval and the inside and outside layer metal tube distance computation internal layer gold clashing into pressure curve
Belong to the average speed of tube swelling；The lead-in wire of sensor of inner layer metal inside pipe wall it is pasted onto through inner layer metal pipe during measurement, and
Need to draw from the opposite end of explosive initiation end, it is to avoid it is blown up by explosive before collecting incident pressure starting point, pastes
Layer protective layer is posted, it is ensured that it can collect signal, is pasted onto outer layer on the pressure transducer surface of inner layer metal inside pipe wall
The lead-in wire of the sensor of inner wall of metal tube is drawn from the otch of outer layer metal tube, it is to avoid lead-in wire interference blast bonding processes.
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 Explosion composite dose and inside and outside layer metal tube spacing provides foundation, thus reach preferable
Composite effect, additionally be also applied for measure metallic plate Explosion composite time cladding plate stroke speed.
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 data collecting instrument can also use capture card, and initiator can also use laser
Initiators etc., any those familiar with the art is in the scope disclosed in this utility model patent, according to this reality
Technical scheme and utility model patent thereof with new patent conceive equivalent or change in addition, broadly fall into this utility model special
The protection domain of profit.
Claims (10)
1. inner tube speed of expansion measurement apparatus during metal tube Explosion composite, including explosive and initiator, described explosive passes through
Ignite after initiator detonating capsule, it is characterised in that: also include metal tube, data collecting instrument and two pairs of pressure transducers, described
Metal tube includes that inner layer metal pipe and outer layer metal tube, two pairs of pressure transducers are positioned on the position of metal tube radial symmetric, and
Two pressure transducers in every pair of pressure transducer are respectively adhered on inner layer metal inside pipe wall and outer layer metal inside pipe wall radial direction
Position, same direction on, and be connected with data collecting instrument respectively, described explosive is arranged in inner layer metal pipe, described internal layer gold
Belong to pipe and be fixed on outer layer metal tube center.
Inner tube speed of expansion measurement apparatus during a kind of metal tube Explosion composite the most according to claim 1, it is characterised in that:
Described pressure transducer is film like structures.
Inner tube speed of expansion measurement apparatus during a kind of metal tube Explosion composite the most according to claim 2, it is characterised in that:
Described pressure transducer is PVDF pressure transducer or alloy thin film pressure sensor.
4. according to inner tube speed of expansion measurement apparatus during a kind of metal tube Explosion composite described in any one of claim 1-3, its
It is characterised by: the lead-in wire of the pressure transducer being pasted onto inner layer metal inside pipe wall is contrary from explosive initiation end through inner layer metal pipe
One end draw.
5. according to inner tube speed of expansion measurement apparatus during a kind of metal tube Explosion composite described in any one of claim 1-3, its
It is characterised by: layer protective layer is posted on the pressure transducer surface being pasted onto inner layer metal inside pipe wall.
6. according to inner tube speed of expansion measurement apparatus during a kind of metal tube Explosion composite described in any one of claim 1-3, its
It is characterised by: the lead-in wire of the pressure transducer being pasted onto outer layer metal inside pipe wall is drawn from the otch of outer layer metal tube.
Inner tube speed of expansion measurement apparatus during a kind of metal tube Explosion composite the most according to claim 1, it is characterised in that:
Between described inner layer metal pipe outer wall and outer layer metal inside pipe wall, there is gap.
Inner tube speed of expansion measurement apparatus during a kind of metal tube Explosion composite the most according to claim 7, 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 a kind of metal tube Explosion composite the most according to claim 1, it is characterised in that:
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 a kind of metal tube Explosion composite the most according to claim 1, its feature exists
In: described explosive is low-density, low explosive, and described initiator is high energy pulse initiator or Laser Initiating Device.
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|---|---|---|---|
| CN201620721249.6U CN205826441U (en) | 2016-07-07 | 2016-07-07 | Inner tube speed of expansion measurement apparatus during a kind of metal tube Explosion composite |
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| CN201620721249.6U CN205826441U (en) | 2016-07-07 | 2016-07-07 | Inner tube speed of expansion measurement apparatus during a kind of metal tube Explosion composite |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2658149C1 (en) * | 2017-05-29 | 2018-06-19 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") | Simulator the powder pressure accumulator |
-
2016
- 2016-07-07 CN CN201620721249.6U patent/CN205826441U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2658149C1 (en) * | 2017-05-29 | 2018-06-19 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") | Simulator the powder pressure accumulator |
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