CN116913582B - Cable applied to brake pad abrasion monitoring - Google Patents
Cable applied to brake pad abrasion monitoring Download PDFInfo
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- CN116913582B CN116913582B CN202310972285.4A CN202310972285A CN116913582B CN 116913582 B CN116913582 B CN 116913582B CN 202310972285 A CN202310972285 A CN 202310972285A CN 116913582 B CN116913582 B CN 116913582B
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- brake pad
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- 239000011241 protective layer Substances 0.000 claims abstract description 23
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- 229910010271 silicon carbide Inorganic materials 0.000 claims description 13
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 4
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- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 4
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- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 claims description 2
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0009—Details relating to the conductive cores
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D66/02—Apparatus for indicating wear
- F16D66/021—Apparatus for indicating wear using electrical detection or indication means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/185—Sheaths comprising internal cavities or channels
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a cable applied to brake pad wear monitoring, which comprises an electrode core layer (1), an insulating layer (2), second conductive layers (31, 32) and a protective layer (4); the second conductive layer comprises a second conductive electrode layer (31) and a second conductive layer cavity (32). The electrode core layer (1) is of a single-core structure or a multi-core stranded structure; the second conductive electrode layer (31) in the second conductive layers (31, 32) is in an annular sawtooth shape, and one side of the second conductive electrode layer is tightly wrapped with the insulating layer (2); the other side is wavy, and a second conducting layer cavity (32) is formed by the protective layer; the thickness of the protective layer (4) is greater than or equal to 0.9mm; the thickness of the insulating layer (2) is 0.8-50 mu m; the material of the insulating layer is selected from pressure sensitive ceramic materials. The cable disclosed by the invention is applied to the fields of water conservancy and hydropower, railway traffic, intelligent building, production automatic control, aerospace, military industry, petrochemical industry, oil well, electric power, ships, machine tools, pipelines or medical treatment.
Description
Technical Field
The invention belongs to the technical field of cables for monitoring wear of brake pads, and particularly relates to a cable applied to monitoring wear of a brake pad.
Background
Along with the continuous improvement of modern living standard, the living rhythm is continuously accelerated, and the self-generating equipment with convenient application and low dependence on environment is generated. Existing self-generating devices typically utilize the piezoelectric properties of the material. As in 2006, researchers at the university of georgia developed the world's smallest generator-nanogenerator, converting mechanical energy into electrical energy in the nanoscale range. The basic principle of the nano generator is as follows: when the nanowire is dynamically stretched under an external force, a piezoelectric potential is generated in the nanowire, and a corresponding transient current flows across to balance the fermi level. The traditional piezoelectric sensor is a flat film type, and piezoelectric cables are generated according to application requirements in recent years. The piezoelectric cable is of a coaxial design, and when the piezoelectric cable is compressed or stretched, a piezoelectric effect occurs, producing a charge or voltage signal proportional to pressure to provide an operating voltage. Piezoelectric sensors are sensors made of piezoelectric effects generated after piezoelectric materials are stressed, and are widely used in various fields of acoustics, medical treatment, industry, traffic, security protection and the like, and the living and working modes of people are gradually changed, so that the piezoelectric sensors become a trend of social development. The object and the object are rubbed with each other, so that one of the objects is negatively charged, the other object is positively charged, and electricity generated by the friction between the objects is called triboelectricity. Triboelectricity is one of the most common phenomena in nature, but is ignored because of the difficulty in collecting and utilizing. If the triboelectricity can be applied to the pressure sensing cable, more convenience is brought to the life of people.
Disclosure of Invention
Aiming at the technical problems existing in the prior art, the invention aims to provide a cable applied to brake pad wear monitoring, which comprises an electrode core layer 1, an insulating layer 2, second conductive layers 31 and 32 and a protective layer 4; the second conductive layer includes a second conductive electrode layer 31 and a second conductive layer cavity 32;
and/or the second conductive layer comprises a second conductive electrode layer 32 and a second conductive layer cavity 31.
As a preferable scheme, the electrode core layer 1 is of a single-core structure or a multi-core stranded structure;
and/or the electrode core material is metal or alloy;
and/or the metal is gold, silver, platinum, palladium, aluminum, nickel, copper, titanium, chromium, tin, iron, manganese, molybdenum, tungsten or vanadium;
and/or the alloy is an aluminum alloy, a titanium alloy, a magnesium alloy, a beryllium alloy, a copper alloy, a zinc alloy, a manganese alloy, a nickel alloy, a lead alloy, a tin alloy, a cadmium alloy, a bismuth alloy, an indium alloy, a gallium alloy, a tungsten alloy, a molybdenum alloy, a niobium alloy or a tantalum alloy;
and/or the electrode core layer multi-core stranding structure adopts a single core with the pitch diameter ratio of 6-12 and the number of 7-25.
As a preferable scheme, the thickness of the insulating layer 2 is 0.8-50 mu m;
and/or the material of the insulating layer is selected from pressure sensitive materials;
and/or the pressure-sensitive material is a pressure-sensitive ceramic material.
Preferably, the thickness of the protective layer 4 is greater than or equal to 0.9mm;
and/or the material of the protective layer is selected from any one of polyethylene plastic, polypropylene plastic, fluoroplastic, polyvinyl chloride, poly perfluoroethylene propylene, nylon, polyolefin, chlorinated polyethylene, chlorosulfonated polyethylene, silicone rubber, tetrafluoroethylene-ethylene copolymer, polytrifluoroethylene, polystyrene, chlorinated polyether, polyimide, polyester, ethylene-vinyl acetate copolymer EVA, thermoplastic vulcanized rubber TPV, thermoplastic polyurethane elastomer rubber TPU, ethylene propylene diene monomer EPDM or thermoplastic rubber TPR, polyethylene terephthalate PET, polytetrafluoroethylene PTFE, polydimethylsiloxane PDMS, polyvinylidene fluoride, polyester fiber and fluorinated ethylene propylene copolymer.
Preferably, the second conductive electrode layer 31 of the second conductive layers 31, 32 is in a ring-like wavy shape, and one side of the second conductive electrode layer is tightly wrapped with the insulating layer 2; the other side is wavy, and the protective layer forms a second conductive layer cavity 32;
and/or the material of the second conductive layers 31, 32 is a metal or an alloy;
and/or the alloy is gold, silver, platinum, palladium, aluminum, nickel, copper, titanium, chromium, tin, iron, manganese, molybdenum, tungsten or vanadium;
and/or the alloy is an aluminum alloy, a titanium alloy, a magnesium alloy, a beryllium alloy, a copper alloy, a zinc alloy, a manganese alloy, a nickel alloy, a lead alloy, a tin alloy, a cadmium alloy, a bismuth alloy, an indium alloy, a gallium alloy, a tungsten alloy, a molybdenum alloy, a niobium alloy or a tantalum alloy;
and/or the metal or alloy is single and is semicircular or elliptic in cross section.
The second conductive layer can be formed by encircling a single semicircular or semi-elliptic metal or alloy with the insulating layer, or can be formed by laminating the second conductive layer into a wavy shape according to the requirement in advance and encircling the insulating layer, and the preparation method can be carried out by a person skilled in the art according to the actual requirement.
Preferably, the preparation method of the pressure-sensitive ceramic material comprises the following steps:
s1: adding silicon carbide, fluorinated graphene, zinc borate and phenolic resin into a ball mill, ball milling and drying.
S2: and (3) sieving the product obtained in the step (S1) with a 200-300 mesh sieve, and then sintering to obtain the pressure sensitive ceramic.
S3: mixing the pressure-sensitive ceramic and the ethylene-polytetrafluoroethylene copolymer according to the mass ratio of 1:0.8-1.5 to prepare the tensile pressure-sensitive material with the thickness of 0.5-6 mu m and the width of 2-10 mm, and wrapping the tensile pressure-sensitive material on the electrode core layer.
The researchers of the invention find that the cable adopting the pressure-sensitive ceramic material of the invention has better performance compared with other pressure-sensitive materials when adopting the structure, and the invention guesses that the cable is probably due to the two-dimensional and three-dimensional structure of the fluorinated graphene of the pressure-sensitive ceramic material and the easy formation of molecular hydrogen bond effect of the ethylene-polytetrafluoroethylene copolymer.
Further, the particle size of the silicon carbide is 0.1-0.6 mu m;
and/or the particle size of the fluorinated graphene is 0.5-3 mu m;
and/or the particle size of the zinc borate is 1-5 mu m.
Further, the ball milling rotating speed in the ball milling process is 200-500 r/min; ball milling time is 1-6 h;
and/or the drying temperature is 80-100 ℃; the drying time is 10-20 h.
Further, the weight ratio of the silicon carbide, the fluorinated graphene, the zinc borate and the phenolic resin is (2-4): (0.03 to 0.09): (0.02-0.07): (0.1 to 0.3);
and/or the sintering temperature is 1800-2000 ℃; the sintering time is 1-4 h.
Compared with the prior art, the invention has the following beneficial effects:
1. in the invention, the second conductive layer is in an annular wavy shape and has a certain gap, and the structure has more excellent pressure sensitivity, so that compared with the cable without the second conductive layer in the prior art, the cable has more sensitivity to pressure and the like received by the outside, and meanwhile, the cable can be effectively prevented from being incapable of playing a role due to uneven pressure.
2. In the invention, the fluorinated graphene in the pressure-sensitive ceramic material has an sp2 structure and an sp3 structure, and has a certain ohmic resistance linear characteristic and a silicon carbide conduction mechanism which are different, and the characteristics of complementary advantages of the two; and in combination with the structure of the cable, the pressure-sensitive ceramic material is arranged below the second conductive layer with the gaps, so that the pressure-sensitive sensitivity of the cable is effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a structure of the present invention for a force sensor cable.
FIG. 2 is a flow chart of the process for preparing the pressure-sensitive ceramic material of the invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided on the premise of the technical solution of the present invention, and the detailed implementation manner and specific operation process are provided, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.
Thus, the following detailed description of the embodiments of the invention is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items below, and thus once an item is defined, no further definition or explanation thereof is required later.
In the description of the present invention, it should be noted that, the azimuth or positional relationship indicated by the terms "front", "rear", etc. are based on azimuth or positional relationship, or azimuth or positional relationship that the inventive product is conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature may include first and second features directly contacting each other, either above or below a second feature, or through additional features contacting each other, rather than directly contacting each other. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.
Example 1
A cable for use in brake pad wear monitoring, the cable comprising an electrode core layer 1, an insulating layer 2, second conductive layers 31, 32 and a protective layer 4; the second conductive layer includes a second conductive electrode layer 31 and a second conductive layer cavity 32;
the electrode core material is silver, and the electrode core layer multi-core stranding structure adopts single-core stranding with the pitch diameter ratio of 6 and the number of 7.
The thickness of the insulating layer 2 is 12 mu m; the material of the insulating layer is selected from pressure sensitive materials; the pressure sensitive material is a pressure sensitive ceramic material.
The thickness of the protective layer 4 is equal to 3mm; the material of the protective layer is selected from thermoplastic vulcanizate TPV.
The second conductive electrode layer 31 in the second conductive layers 31, 32 is in a ring-shaped wavy shape, and one side of the second conductive electrode layer is tightly wrapped with the insulating layer 2; the other side is wavy, and the protective layer forms a second conductive layer cavity 32;
the material of the second conductive layers 31, 32 is copper alloy; the metal or alloy is a single metal with a semicircular cross section.
The preparation method of the pressure-sensitive ceramic material comprises the following steps:
s1: the weight ratio is 2:0.03:0.02:0.1, adding silicon carbide, fluorinated graphene, zinc borate and phenolic resin into a ball mill, ball milling and drying; ball milling rotating speed is 200r/min; ball milling time is 8 hours; the drying temperature is 80 ℃; the drying time is 20h.
S2: sieving the product obtained in the step S1 with a 200-mesh sieve, and then sintering to obtain the pressure-sensitive ceramic; the sintering temperature is 1800 ℃, and the sintering time is 2 hours.
S3: mixing the pressure-sensitive ceramic and the ethylene-polytetrafluoroethylene copolymer according to the mass ratio of 1:0.8 to prepare the tensile pressure-sensitive material with the thickness of 0.5 mu m and the width of 2mm, and wrapping the tensile pressure-sensitive material on the electrode core layer.
Wherein the particle size of the silicon carbide is 0.1 mu m; the particle size of the fluorinated graphene is 0.5 mu m; the particle size of the zinc borate is 1 μm.
Example 2
A cable for use in brake pad wear monitoring, the cable comprising an electrode core layer 1, an insulating layer 2, second conductive layers 31, 32 and a protective layer 4; the second conductive layer includes a second conductive electrode layer 31 and a second conductive layer cavity 32;
the electrode core material is copper alloy; the electrode core layer multi-core stranding structure adopts single-core stranding with the pitch diameter ratio of 12 and the number of 13.
The thickness of the insulating layer 2 is 8 mu m, the material of the insulating layer is selected from pressure-sensitive materials, and the pressure-sensitive materials are pressure-sensitive ceramic materials.
The thickness of the protective layer 4 is equal to 3.5mm; the material of the protective layer is selected from ethylene-vinyl acetate copolymer EVA.
The second conductive electrode layer 31 in the second conductive layers 31, 32 is in a ring-shaped wavy shape, and one side of the second conductive electrode layer is tightly wrapped with the insulating layer 2; the other side is wavy, and the protective layer forms a second conductive layer cavity 32; the second conductive layers 31, 32 are made of manganese alloy; the metal or alloy is a single metal or alloy with a semicircular cross section (as shown in figure 1).
The preparation method of the pressure-sensitive ceramic material comprises the following steps:
s1: the weight ratio is 4:0.09:0.07:0.3, adding silicon carbide, fluorinated graphene, zinc borate and phenolic resin into a ball mill, ball milling and drying; ball milling rotating speed is 500r/min; ball milling time is 6 hours; the drying temperature is 100 ℃; the drying time is 20h.
S2: sieving the product obtained in the step S1 with a 300-mesh sieve, and then sintering to obtain the pressure-sensitive ceramic; the sintering temperature is 2000 ℃, and the sintering time is 4 hours.
S3: the pressure-sensitive ceramic and the ethylene-polytetrafluoroethylene copolymer are mixed according to the mass ratio of 1:1.5 to prepare the tensile pressure-sensitive material with the thickness of 6 mu m and the width of 10mm, and the tensile pressure-sensitive material is wrapped on the electrode core layer.
Wherein the particle size of the silicon carbide is 0.6 mu m; the particle size of the fluorinated graphene is 1 mu m; the particle size of the zinc borate is 3 mu m.
Example 3
A cable for use in brake pad wear monitoring, the cable comprising an electrode core layer 1, an insulating layer 2, second conductive layers 31, 32 and a protective layer 4; the second conductive layer includes a second conductive electrode layer 31 and a second conductive layer cavity 32;
the electrode core is made of copper, and the electrode core layer multi-core stranding structure adopts a single core with the pitch diameter ratio of 6 and the number of 19.
The thickness of the insulating layer 2 is 15 mu m, the material of the insulating layer is selected from pressure-sensitive materials, and the pressure-sensitive materials are pressure-sensitive ceramic materials.
The thickness of the protective layer 4 is equal to 2.5mm; the material of the protective layer is selected from thermoplastic polyurethane elastomer rubber TPU.
The second conductive electrode layer 31 in the second conductive layers 31, 32 is in a ring-shaped wavy shape, and one side of the second conductive electrode layer is tightly wrapped with the insulating layer 2; the other side is wavy, and the protective layer forms a second conductive layer cavity 32; the second conductive layers 31, 32 are made of zinc alloy; the metal or alloy is a single piece with an oval cross section.
The preparation method of the pressure-sensitive ceramic material comprises the following steps:
s1: the weight ratio is 3:0.05:0.04:0.2, adding silicon carbide, fluorinated graphene, zinc borate and phenolic resin into a ball mill, ball milling and drying; ball milling rotating speed is 400r/min; ball milling time is 4 hours; the drying temperature is 90 ℃; the drying time is 16h.
S2: sieving the product obtained in the step S1 with a 260-mesh sieve, and then sintering to obtain the pressure-sensitive ceramic; the sintering temperature is 1900 ℃, and the sintering time is 3 hours.
S3: mixing the pressure-sensitive ceramic and the ethylene-polytetrafluoroethylene copolymer according to the mass ratio of 1:0.9 to prepare the tensile pressure-sensitive material with the thickness of 1.4 mu m and the width of 6mm, and wrapping the tensile pressure-sensitive material on the electrode core layer.
Wherein the particle size of the silicon carbide is 0.4 mu m; the particle size of the fluorinated graphene is 1.2 mu m; the particle size of the zinc borate is 2.8 mu m.
The voltage-sensitive voltage of the pressure-sensitive ceramic material of the embodiments 1 to 3 of the invention can be controlled to be 0.008 to 0.234 V.mm through test -1 The nonlinear coefficient is in the range of 1.25-1.52.
Claims (12)
1. A cable for use in brake pad wear monitoring, characterized in that the cable comprises an electrode core layer (1), an insulating layer (2), a second conductive layer (31, 32) and a protective layer (4); the second conductive layer comprises a second conductive electrode layer (31) and a second conductive layer cavity (32);
and/or the number of the groups of groups,
the second conductive layer comprises a second conductive electrode layer (32) and a second conductive layer cavity (31);
the material of the insulating layer is selected from pressure sensitive materials; the pressure-sensitive material is a pressure-sensitive ceramic material;
the preparation method of the pressure-sensitive ceramic material comprises the following steps:
s1: adding silicon carbide, fluorinated graphene, zinc borate and phenolic resin into a ball mill, ball milling and drying;
s2: sieving the product obtained in the step S1 with a 200-300 mesh sieve, and then sintering to obtain the pressure-sensitive ceramic;
s3: mixing the pressure-sensitive ceramic and the ethylene-polytetrafluoroethylene copolymer according to the mass ratio of 1:0.8-1.5 to prepare the tensile pressure-sensitive material with the thickness of 0.5-6 mu m and the width of 2-10 mm, and wrapping the tensile pressure-sensitive material on the electrode core layer.
2. Cable for use in brake pad wear monitoring according to claim 1, wherein the electrode core layer (1) is of a single core structure or a multi-core stranded structure;
and/or the electrode core material is metal or alloy.
3. A cable for use in brake pad wear monitoring according to claim 2, wherein the metal is gold, silver, platinum, palladium, aluminum, nickel, copper, titanium, chromium, tin, iron, manganese, molybdenum, tungsten or vanadium;
and/or the alloy is an aluminum alloy, a titanium alloy, a magnesium alloy, a beryllium alloy, a copper alloy, a zinc alloy, a manganese alloy, a nickel alloy, a lead alloy, a tin alloy, a cadmium alloy, a bismuth alloy, an indium alloy, a gallium alloy, a tungsten alloy, a molybdenum alloy, a niobium alloy or a tantalum alloy.
4. The cable applied to brake pad wear monitoring according to claim 1, wherein the electrode core layer multi-core stranding structure adopts a single core with a pitch diameter ratio of 6-12 and a number of 7-25.
5. Cable applied to brake pad wear monitoring according to claim 1, characterized in that the thickness of the insulating layer (2) is 0.8-50 μm.
6. Cable for use in brake pad wear monitoring according to claim 1, wherein the thickness of the protective layer (4) is greater than or equal to 0.9mm;
and/or the number of the groups of groups,
the material of the protective layer is selected from any one of polyethylene plastic, polypropylene plastic, fluoroplastic, polyvinyl chloride, poly (perfluoroethylene propylene), nylon, polyolefin, chlorinated polyethylene, chlorosulfonated polyethylene, silicone rubber, tetrafluoroethylene-ethylene copolymer, polytrifluoroethylene, polystyrene, chlorinated polyether, polyimide, polyester, ethylene-vinyl acetate copolymer EVA, thermoplastic vulcanized rubber TPV, thermoplastic polyurethane elastomer rubber TPU, ethylene propylene diene monomer EPDM or thermoplastic rubber TPR, polyethylene terephthalate PET, polytetrafluoroethylene PTFE, polydimethylsiloxane PDMS, polyvinylidene fluoride, polyester fiber and fluorinated ethylene propylene copolymer.
7. A cable for brake pad wear monitoring according to claim 1, characterized in that the second conductive electrode layer (31) of the second conductive layers (31, 32) is in the shape of a ring wave, one side of which is tightly wrapped with the insulating layer (2); the other side is wavy, and the protective layer forms a second conductive layer cavity (32).
8. A cable for use in brake pad wear monitoring according to claim 1, wherein the material of the second conductive layer (31, 32) is a metal or an alloy;
and/or the number of the groups of groups,
the alloy is gold, silver, platinum, palladium, aluminum, nickel, copper, titanium, chromium, tin, iron, manganese, molybdenum, tungsten or vanadium;
and/or the number of the groups of groups,
the alloy is aluminum alloy, titanium alloy, magnesium alloy, beryllium alloy, copper alloy, zinc alloy, manganese alloy, nickel alloy, lead alloy, tin alloy, cadmium alloy, bismuth alloy, indium alloy, gallium alloy, tungsten alloy, molybdenum alloy, niobium alloy or tantalum alloy;
9. a cable for use in brake pad wear monitoring according to claim 8, wherein the metal or alloy is single piece with a semi-circular or oval cross-section.
10. A cable for brake pad wear monitoring according to claim 1, wherein the silicon carbide has a particle size of 0.1-0.6 μm;
and/or the particle size of the fluorinated graphene is 0.5-3 mu m;
and/or the particle size of the zinc borate is 1-5 mu m.
11. The cable applied to brake pad wear monitoring according to claim 1, wherein the ball milling rotating speed in the ball milling process is 200-500 r/min; ball milling time is 1-6 h;
and/or the drying temperature is 80-100 ℃ and the drying time is 10-20 h.
12. The cable applied to brake pad wear monitoring according to claim 1, wherein the weight ratio of silicon carbide, fluorinated graphene, zinc borate and phenolic resin is (2-4): (0.03 to 0.09): (0.02-0.07): (0.1 to 0.3);
and/or the sintering temperature is 1800-2000 ℃, and the sintering time is 1-4 h.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207397780U (en) * | 2017-10-31 | 2018-05-22 | 广西群星电缆有限公司 | High intensity minerals fill flame retardant cable |
| CN110591190A (en) * | 2019-09-18 | 2019-12-20 | 周民主 | Environment-friendly wear-resistant cable |
| CN209993375U (en) * | 2019-02-28 | 2020-01-24 | 襄阳市诺立信电线电缆有限公司 | Cable with good anti-cutting performance |
| CN113053581A (en) * | 2021-03-15 | 2021-06-29 | 国网湖北省电力有限公司十堰供电公司 | Fireproof cable easy to radiate and fireproof composite cable |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6424408B2 (en) * | 2014-02-06 | 2018-11-21 | 国立研究開発法人科学技術振興機構 | Pressure sensor sheet, pressure sensor, and method of manufacturing pressure sensor sheet |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207397780U (en) * | 2017-10-31 | 2018-05-22 | 广西群星电缆有限公司 | High intensity minerals fill flame retardant cable |
| CN209993375U (en) * | 2019-02-28 | 2020-01-24 | 襄阳市诺立信电线电缆有限公司 | Cable with good anti-cutting performance |
| CN110591190A (en) * | 2019-09-18 | 2019-12-20 | 周民主 | Environment-friendly wear-resistant cable |
| CN113053581A (en) * | 2021-03-15 | 2021-06-29 | 国网湖北省电力有限公司十堰供电公司 | Fireproof cable easy to radiate and fireproof composite cable |
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