CN107507913A - Pressure detecting piezoelectric and its manufacture method in a kind of the coat layer of power cable - Google Patents
Pressure detecting piezoelectric and its manufacture method in a kind of the coat layer of power cable Download PDFInfo
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- CN107507913A CN107507913A CN201710690821.6A CN201710690821A CN107507913A CN 107507913 A CN107507913 A CN 107507913A CN 201710690821 A CN201710690821 A CN 201710690821A CN 107507913 A CN107507913 A CN 107507913A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
- H10N30/85—Piezoelectric or electrostrictive active materials
- H10N30/853—Ceramic compositions
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/01—Manufacture or treatment
- H10N30/03—Assembling devices that include piezoelectric or electrostrictive parts
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/01—Manufacture or treatment
- H10N30/08—Shaping or machining of piezoelectric or electrostrictive bodies
- H10N30/085—Shaping or machining of piezoelectric or electrostrictive bodies by machining
- H10N30/089—Shaping or machining of piezoelectric or electrostrictive bodies by machining by punching
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/01—Manufacture or treatment
- H10N30/09—Forming piezoelectric or electrostrictive materials
- H10N30/093—Forming inorganic materials
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
- H10N30/88—Mounts; Supports; Enclosures; Casings
- H10N30/886—Mechanical prestressing means, e.g. springs
Abstract
The present invention relates to pressure detecting piezoelectric and its manufacture method in a kind of the coat layer of power cable, the piezoelectric is made up of following parts by weight raw material：Diameter 0.06mm 0.07mm 35 parts of 3J33 spring wires 30 part, the wide 0.8mm of thick 0.05mm Pb0.95Cr0.02Ca0.03[(Ni1/3Nb2/3)0.5·Zr0.2·Ti0.3]O34 parts of crystal band 3 part, 8 parts of methacrylate 5 part, 0.3 part of initiator 0.2 part, 2 parts of kicker 1 part, 0.8 part of stabilizer 0.5 part, 15 parts of polyurethane adhesive 10 part.Pressure detecting is with piezoelectric susceptibility is high, vibration resistance is strong, is tightly combined with core and rubber topping in the coat layer of power cable of the present invention.
Description
Technical field
The present invention relates to pressure detecting piezoelectric in electric material field, more particularly to a kind of the coat layer of power cable and its
Manufacture method.
Background technology
Cable is to transmit electric (magnetic) energy, information and the wire product for realizing electromagnetic energy conversion, in modern industry and people
Daily life in play extremely important effect.Actually more than 95% cable is all due to following three reasons and lost
Effect：1st, mechanical damage：The oversheath of cable is often torn or pressure break, and the jacket surface not ftractureed has flash or friction trace
Mark；Sheath external non-destructive scar mark, but there is partly or entirely rupture in the wire insulation inside cable.If not being to lose completely
Effect, will cause to leak electricity, and trip and shut down that there may be the analysis of causes：Sharp rock, mine landslide, winch cable drum edge
Sharp and excess load.2nd, bending radius exceeds recommendation：When cable be bent and its bending radius much smaller than manufacturer recommend
During bending radius, cable inner member easily forms mechanical damage.3rd, it is twisted：Knot be initially as caused by knot ring, it is most of
In the case of be to occur in " pulling " cable from fixed reel, and be not easy to release.Knot can cause permanent " weak
Point ".
In fact, we are it can be found that these three failure factors, can pass through the setting relatively long distance inside cable
Pressure-detecting device prevents or finds failpoint after failing, but in the prior art, due to piezoelectric Curie temperature itself
Limitation and nearly all sensitive piezoelectric are crystal, and fragility is big and the coefficient of expansion is small, causes the use environment with cable
It can not match completely.Because the piezoelectric of crystallization is hard and crisp, thus organic knot can not be carried out with cable of the prior art
Close, the product pressure detection sensitivity of acquisition is relatively low, vibration resistance is poor.
Therefore, one Species sensitivity of in the market needs is high, vibration resistance is strong and core and the compact piezoelectricity of rubber topping
Material.
The content of the invention
To solve drawbacks described above present in prior art, the present invention is intended to provide a Species sensitivity is high, vibration resistance is strong,
With pressure detecting piezoelectric and its manufacture method in core and the compact the coat layer of power cable of rubber topping.
In order to realize foregoing invention purpose, the present invention uses following technical scheme：Pressure detecting in a kind of the coat layer of power cable
With piezoelectric, it is made up of following parts by weight raw material：Diameter 0.06mm-0.07mm 30 parts -35 parts of 3J33 spring wires, thickness
The wide 0.8mm of 0.05mm Pb0.95Cr0.02Ca0.03[(Ni1/3Nb2/3)0.5·Zr0.2·Ti0.3]O33 parts -4 parts of crystal band, methyl
5 parts -8 parts of acrylate, 0.2 part -0.3 part of initiator, 1 part -2 parts of kicker, 0.5 part -0.8 part of stabilizer, polyurethane adhesive
10 parts -15 parts.
The method for manufacturing pressure detecting piezoelectric in above-mentioned the coat layer of power cable, comprises the following steps：
1) prepare before production
1. 3J33 is wound into diameter 0.8mm-1.0mm helical coil；
2. it will be mixed and stirred for uniformly after methacrylate, initiator, kicker, stabilizer, polyurethane adhesive hot melt,
Obtain stand-by mixed glue；
3. prepare a consistent ceramic frock of the cable core outside dimension with removing rubber topping layer；
2) prepared by functional layer
1. 1) 1. helical coil that step in obtains is brought into close contact coiling 1-2 layers in potter's dress；
2. uniform punching press, stamping pressure 15MPa-18MPa, punching press frequency are carried out to the helical coil for being wound on ceramic frock surface
Rate is 8 times/min-10 times/min, punching press time 20min-30min, obtains pre-prepared first helical coil after punching press；
3. carrying out destressing processing to pre-prepared first helical coil using 560 DEG C -580 DEG C, processing time 1h-2h, obtain
First helical coil after timeliness；
4. carrying out uniform punching press, stamping pressure 22MPa-25MPa to the first helical coil after timeliness, punching press frequency is 15 times/
Min-20 times/min, punching press time 10min-15min, obtain pending first helical coil after punching press；
5. using 560 DEG C -580 DEG C to pending first helical coil carry out destressing processing, processing time 1h-2h, finally
Obtain the first helical coil basic unit；
6. by two Pb0.95Cr0.02Ca0.03[(Ni1/3Nb2/3)0.5·Zr0.2·Ti0.3]O3Crystal band edge and ceramic frock
The direction of diameter parallel, the first symmetrical both sides of helical coil substrate surface are fitted in respectively；
7. the helical coil that in using 1) 1. step obtains is tightly wound around the first helical coil substrate surface, and fixed crystal
Band and the relative position of the first helical coil basic unit, winding 2-3 circles；
8. uniform punching press is carried out to the helical coil for being wound on the first helical coil substrate surface, stamping pressure 25MPa-28MPa,
Punching press frequency is 20 times/min-30 times/min, punching press time 20min-30min, obtains pre-prepared second helical coil after punching press；
9. using 560 DEG C -580 DEG C to pre-prepared second helical coil carry out destressing processing, processing time 1h-2h, finally
Obtain required function layer；
3) damping layer is fastened to prepare
1. 1) it is potted in after 2. mixed glue hot melt that step in is obtained in functional layer, embedding pressure 8MPa-
10MPa；
2. removing the mixed glue of overflow-resisting function layer using mechanical system, institute is obtained after removing the ceramic frock of core
Need pressure detecting piezoelectric in the coat layer of power cable.
The shielding layer surface of core need to be sleeved on during practical application of the present invention and need to be with special when being fixed with top layer pillar
Localized heat melts instrument melting welding, and bond strength is up to 80MPa-100MPa.
Compared with prior art, by adopting the above-described technical solution, the present invention has advantages below：Due to cable
Screen layer is wire or metal tape (silver-plated spring wire or stainless steel band etc.), and top layer pillar is rubber, and consideration is sleeved on electricity
Material in cable will can resist the cutting and friction of metal, while to be engaged with rubber topping layer and could intuitively detect tension and compression
Stress, therefore the present invention installs one layer " metal-rubber " additional on the surface of piezoelectric, different from metal-rubber of the prior art
It is to use the stainless steel making of nanometer austenite, but uses cobalt-base alloys to manufacture, lift fatigue limit and elastic limit, simultaneously
Gap (i.e. near the hole and hole of piezoelectric) embedding between metal-rubber and piezoelectric has gluing work simultaneously
(prevent mechanical bending of metal-rubber etc. from damaging piezoresistive material with (by metal-rubber and rubber surface good bond) and damping effect
Material), because metal-rubber has metal and rubber dual property in itself, therefore resistance to mechanical vibration ability is strong, and tensile resistance is strong,
It is strong to the piezoelectric protective capacities of inside；The present invention is molded respectively using unique bilayer, is contacted especially as with screen layer
First layer be even more to employ circulation punching press destressing moulding process twice, punching press twice gradually increases punching press dynamics, thus
Can obtain has tight structure and basic unit strong enough, and as a result of using polyurethane as filler, methacrylate is glue
The firm and protection technique of stick, embedding is carried out by specific technique, makes the piezoelectric in the middle part of double layer of metal rubber
With metal-rubber strong bonded, when according to the intrinsic propesties of metal-rubber in particular by cobalt-base alloys being matrix material, it is in
The piezoelectric at middle part can with very sensitive sense the pressure that two surfaces of metal-rubber are subject to, and either be drawn by cold day
Stretch the tension force of stress or bending again or the extruding force that obtains of hot day can detect in real time, when ABNORMAL STRESS situation occurs,
By the fluctuation of micro- electric signal, the trouble point that may occur can be prevented, be investigated or dangerous section substitutes, and or
The cut cable of failure, troubleshooting can also be carried out in the very first time because piezoelectric signal disconnects, restored electricity；It is gluing due to use
Agent has close metal and rubberphilic organic group simultaneously, has fairly good hot molten characteristic repeatedly again, therefore be potted in functional layer
In adhesive can admirably strengthen adhesion between the rubber layer of functional layer and top layer pillar and the metal tape of screen layer, again
Because having polyurethane as filler, obvious pooling feature can be played.Therefore, compared to another invention of application simultaneously, this hair
Bright susceptibility is higher, vibration resistance is stronger, it is closer to be combined with core and rubber topping, but difficulty of processing also increases simultaneously, fits
Narrowed with scope.
Embodiment
Embodiment 1
Pressure detecting piezoelectric in a kind of the coat layer of power cable, it is made up of following parts by weight raw material：Diameter 0.06mm
35 parts of 3J33 spring wires, the wide 0.8mm of thick 0.05mm Pb0.95Cr0.02Ca0.03[(Ni1/3Nb2/3)0.5·Zr0.2·Ti0.3]O3
4 parts of crystal band, 8 parts of methacrylate, 0.2 part of initiator, 1 part of kicker, 0.8 part of stabilizer, 15 parts of polyurethane adhesive.
The method for manufacturing pressure detecting piezoelectric in above-mentioned the coat layer of power cable, comprises the following steps：
1) prepare before production
1. 3J33 is wound into diameter 0.8mm helical coil；
2. it will be mixed and stirred for uniformly after methacrylate, initiator, kicker, stabilizer, polyurethane adhesive hot melt,
Obtain stand-by mixed glue；
3. prepare a consistent ceramic frock of the cable core outside dimension with removing rubber topping layer；
2) prepared by functional layer
1. 1) 1. helical coil that step in obtains is brought into close contact 2 layers of coiling in potter's dress；
2. uniform punching press is carried out to the helical coil for being wound on ceramic frock surface, and (the uniformly punching press is specially to use to divide valve
Formula is cylindric, i.e. the stainless steel capsule that five to eight arc plates are spliced into, passes through pressurization and release of the mechanical arm on jacket surface
Complete circulating flushing and press work, similarly hereinafter), stamping pressure 18MPa, punching press frequency is 10 times/min, punching press time 30min, is rushed
Pre-prepared first helical coil after pressure；
3. carrying out destressing processing to pre-prepared first helical coil using 580 DEG C, processing time 2h, obtain first after timeliness
Helical coil；
4. carrying out uniform punching press to the first helical coil after timeliness, stamping pressure 25MPa, punching press frequency is 20 times/min, punching
Time 15min is pressed, obtains pending first helical coil after punching press；
5. carrying out destressing processing to pending first helical coil using 580 DEG C, processing time 2h is final to obtain the first spiral shell
Circumvolution basic unit；
6. by two Pb0.95Cr0.02Ca0.03[(Ni1/3Nb2/3)0.5·Zr0.2·Ti0.3]O3Crystal band edge and ceramic frock
The direction of diameter parallel, the first symmetrical both sides of helical coil substrate surface are fitted in respectively；
7. the helical coil that in using 1) 1. step obtains is tightly wound around the first helical coil substrate surface, and fixed crystal
Band and the relative position of the first helical coil basic unit, the circle of winding 2；
8. uniform punching press, stamping pressure 28MPa, punching press frequency are carried out to the helical coil for being wound on the first helical coil substrate surface
Rate is 30 times/min, punching press time 30min, obtains pre-prepared second helical coil after punching press；
9. destressing processing, processing time 2h, work(needed for final acquisition are carried out to pre-prepared second helical coil using 580 DEG C
Ergosphere；
3) damping layer is fastened to prepare
1. 1) it is potted in after 2. mixed glue hot melt that step in is obtained in functional layer, embedding pressure 10MPa；
2. removing the mixed glue of overflow-resisting function layer using mechanical system, institute is obtained after removing the ceramic frock of core
Need pressure detecting piezoelectric in the coat layer of power cable.
Embodiment 2
It is overall consistent with embodiment 1, it is in place of difference：
Pressure detecting piezoelectric in a kind of the coat layer of power cable, it is made up of following parts by weight raw material：Diameter 0.07mm
30 parts of 3J33 spring wires, the wide 0.8mm of thick 0.05mm Pb0.95Cr0.02Ca0.03[(Ni1/3Nb2/3)0.5·Zr0.2·Ti0.3]O3
3 parts of crystal band, 5 parts of methacrylate, 0.3 part of initiator, 2 parts of kicker, 0.5 part of stabilizer, 10 parts of polyurethane adhesive.
The method for manufacturing pressure detecting piezoelectric in above-mentioned the coat layer of power cable, comprises the following steps：
1) prepare before production
1. 3J33 is wound into diameter 1.0mm helical coil；
2) prepared by functional layer
1. 1) 1. helical coil that step in obtains is brought into close contact 1 layer of coiling in potter's dress；
2. carrying out uniform punching press, stamping pressure 15MPa to the helical coil for being wound on ceramic frock surface, punching press frequency is 8
Secondary/min, punching press time 20min, obtain pre-prepared first helical coil after punching press；
3. carrying out destressing processing to pre-prepared first helical coil using 560 DEG C, processing time 1h, obtain first after timeliness
Helical coil；
4. carrying out uniform punching press to the first helical coil after timeliness, stamping pressure 22MPa, punching press frequency is 15 times/min, punching
Time 10min is pressed, obtains pending first helical coil after punching press；
5. carrying out destressing processing to pending first helical coil using 560 DEG C, processing time 1h is final to obtain the first spiral shell
Circumvolution basic unit；
7. the helical coil that in using 1) 1. step obtains is tightly wound around the first helical coil substrate surface, and fixed crystal
Band and the relative position of the first helical coil basic unit, the circle of winding 3；
8. uniform punching press, stamping pressure 25MPa, punching press frequency are carried out to the helical coil for being wound on the first helical coil substrate surface
Rate is 20 times/min, punching press time 20min, obtains pre-prepared second helical coil after punching press；
9. destressing processing, processing time 1h, work(needed for final acquisition are carried out to pre-prepared second helical coil using 560 DEG C
Ergosphere；
3) damping layer is fastened to prepare
1. 1) it is potted in after 2. mixed glue hot melt that step in is obtained in functional layer, embedding pressure 8MPa；
The foregoing description of the disclosed embodiments, only for enabling professional and technical personnel in the field to realize or using this
Invention.A variety of modifications to these embodiments will be apparent for those skilled in the art, institute herein
The General Principle of definition can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore,
The present invention is not intended to be limited to the embodiments shown herein, and is to fit to special with principles disclosed herein and novelty
The consistent most wide scope of point.
Claims (2)
1. pressure detecting piezoelectric in a kind of the coat layer of power cable, it is characterised in that be made up of following parts by weight raw material：Directly
Footpath 0.06mm-0.07mm 30 parts -35 parts of 3J33 spring wires, the wide 0.8mm of thick 0.05mm Pb0.95Cr0.02Ca0.03[(Ni1/ 3Nb2/3)0.5·Zr0.2·Ti0.3]O33 parts -4 parts of crystal band, 5 parts -8 parts of methacrylate, 0.2 part -0.3 part of initiator,
1 part -2 parts of kicker, 0.5 part -0.8 part of stabilizer, 10 parts -15 parts of polyurethane adhesive.
A kind of 2. method for manufacturing pressure detecting piezoelectric in the coat layer of power cable, it is characterised in that comprise the following steps：
1) prepare before production
1. 3J33 is wound into diameter 0.8mm-1.0mm helical coil；
2. it will be mixed and stirred for uniformly, obtaining after methacrylate, initiator, kicker, stabilizer, polyurethane adhesive hot melt
Stand-by mixed glue；
3. prepare a consistent ceramic frock of the cable core outside dimension with removing rubber topping layer；
2) prepared by functional layer
1. 1) 1. helical coil that step in obtains is brought into close contact coiling 1-2 layers in potter's dress；
2. carrying out uniform punching press, stamping pressure 15MPa-18MPa to the helical coil for being wound on ceramic frock surface, punching press frequency is
8 times/min-10 times/min, punching press time 20min-30min, obtain pre-prepared first helical coil after punching press；
3. carrying out destressing processing to pre-prepared first helical coil using 560 DEG C -580 DEG C, processing time 1h-2h, timeliness is obtained
First helical coil afterwards；
4. carrying out uniform punching press to the first helical coil after timeliness, stamping pressure 22MPa-25MPa, punching press frequency is 15 times/min-
20 times/min, punching press time 10min-15min, obtain pending first helical coil after punching press；
5. carrying out destressing processing to pending first helical coil using 560 DEG C -580 DEG C, processing time 1h-2h is final to obtain
First helical coil basic unit；
6. by two Pb0.95Cr0.02Ca0.03[(Ni1/3Nb2/3)0.5·Zr0.2·Ti0.3]O3Put down with ceramic frock axis on crystal band edge
Capable direction, the first symmetrical both sides of helical coil substrate surface are fitted in respectively；
7. the helical coil 1. obtained using step in 1) is tightly wound around the first helical coil substrate surface, and fixed crystal band with
The relative position of first helical coil basic unit, winding 2-3 circles；
8. uniform punching press, stamping pressure 25MPa-28MPa, punching press are carried out to the helical coil for being wound on the first helical coil substrate surface
Frequency is 20 times/min-30 times/min, punching press time 20min-30min, obtains pre-prepared second helical coil after punching press；
9. carrying out destressing processing to pre-prepared second helical coil using 560 DEG C -580 DEG C, processing time 1h-2h is final to obtain
Required function layer；
3) damping layer is fastened to prepare
1. 1) it is potted in after 2. mixed glue hot melt that step in is obtained in functional layer, embedding pressure 8MPa-10MPa；
2. removing the mixed glue of overflow-resisting function layer using mechanical system, remove electric needed for obtaining after the ceramic frock of core
Pressure detecting piezoelectric in cable restrictive coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710690821.6A CN107507913B (en) | 2017-08-14 | 2017-08-14 | Piezoelectric material for detecting pressure in cable sheath layer and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710690821.6A CN107507913B (en) | 2017-08-14 | 2017-08-14 | Piezoelectric material for detecting pressure in cable sheath layer and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN107507913A true CN107507913A (en) | 2017-12-22 |
| CN107507913B CN107507913B (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710690821.6A Active CN107507913B (en) | 2017-08-14 | 2017-08-14 | Piezoelectric material for detecting pressure in cable sheath layer and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110044408A (en) * | 2019-01-27 | 2019-07-23 | 西安明天仪器有限公司 | Monitor cable system on-line |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1250158A (en) * | 1998-08-05 | 2000-04-12 | 松下电器产业株式会社 | Piezoelectric pressure sensor |
| US20110163833A1 (en) * | 2008-06-24 | 2011-07-07 | S e r g e y P u l n i k o v | Method for making electrical windings for electrical apparatus and transformers and windings obtained by said method |
| CN102915797A (en) * | 2012-10-29 | 2013-02-06 | 常州瑞通新型线材有限公司 | Lateral pressure-resistant audio connecting wire |
| CN104180931A (en) * | 2014-09-11 | 2014-12-03 | 江苏安靠智能输电工程科技股份有限公司 | Rubber stress cone interfacial pressure measuring device and method |
-
2017
- 2017-08-14 CN CN201710690821.6A patent/CN107507913B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1250158A (en) * | 1998-08-05 | 2000-04-12 | 松下电器产业株式会社 | Piezoelectric pressure sensor |
| US20110163833A1 (en) * | 2008-06-24 | 2011-07-07 | S e r g e y P u l n i k o v | Method for making electrical windings for electrical apparatus and transformers and windings obtained by said method |
| CN102915797A (en) * | 2012-10-29 | 2013-02-06 | 常州瑞通新型线材有限公司 | Lateral pressure-resistant audio connecting wire |
| CN104180931A (en) * | 2014-09-11 | 2014-12-03 | 江苏安靠智能输电工程科技股份有限公司 | Rubber stress cone interfacial pressure measuring device and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110044408A (en) * | 2019-01-27 | 2019-07-23 | 西安明天仪器有限公司 | Monitor cable system on-line |
| CN110044408B (en) * | 2019-01-27 | 2022-03-29 | 西安明天仪器有限公司 | Method for monitoring power cable on line |
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| Publication number | Publication date |
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| CN107507913B (en) | 2020-04-03 |
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