CN113056039A - Ultra-low power consumption graphene high-temperature heating tube and manufacturing method thereof - Google Patents
Ultra-low power consumption graphene high-temperature heating tube and manufacturing method thereof Download PDFInfo
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- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 135
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 36
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- 239000010453 quartz Substances 0.000 claims description 40
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 18
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- 239000010439 graphite Substances 0.000 claims description 18
- -1 graphite alkene Chemical class 0.000 claims description 18
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- 238000007789 sealing Methods 0.000 claims description 11
- 239000011268 mixed slurry Substances 0.000 claims description 10
- 239000011265 semifinished product Substances 0.000 claims description 10
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
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- SPAGIJMPHSUYSE-UHFFFAOYSA-N Magnesium peroxide Chemical compound [Mg+2].[O-][O-] SPAGIJMPHSUYSE-UHFFFAOYSA-N 0.000 claims description 4
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- 239000000843 powder Substances 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 239000004408 titanium dioxide Substances 0.000 claims description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- 238000002788 crimping Methods 0.000 claims description 3
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The invention relates to an ultra-low power consumption graphene high-temperature heating tube and a manufacturing method thereof, wherein the heating tube comprises two graphene heating cores and two metal wires, the two metal wires are positioned at two sides of the graphene heating cores, and the metal wires and the graphene heating cores are pressed into a whole, and the ultra-low power consumption graphene high-temperature heating tube is characterized in that the graphene heating cores are made of heating mixture materials, and the heating mixture materials comprise the following components in parts by mass: 1-5 parts of graphene, 30-70 parts of insulating particles, 10-100 parts of solvent and 3-30 parts of cross-linking agent. The graphene heating mixture disclosed by the invention has the advantages that a chemical mode different from a physical mode is adopted, a connectable linkage chain is generated on the surface of graphene, the graphene is easy to be jointed with other substances, and the heating tube generating the high temperature of more than 350 ℃ is manufactured by using the graphene.
Description
Technical Field
The invention belongs to the technical field of heating elements, relates to a heating element with the surface temperature of more than 350 ℃, and particularly discloses an ultra-low power consumption graphene ultra-high temperature heating tube and a manufacturing method thereof.
Background
Graphene is a two-dimensional crystal material consisting of a single carbon atom layer, graphene (graphene), which is called miraculous material, is the thinnest of known materials, and raises the worldwide research enthusiasm. Most of the graphene is used for heat dissipation, at present, only a few graphene is used for heating, the graphene has outstanding heat conduction performance (5000W/(mK)), the Young modulus (1100GPa), the fracture strength (125GPa), and excellent electrical performance (the electron mobility can reach 2 x 105cm2/Vs) at room temperature. AndreGeim and konstantin novoselov gained the physical prize of nobel 2010 because of their contribution to graphene research. The excellent electric conduction and heat conduction performance of the graphene completely exceeds that of metal, the graphene has good mechanical performance and lower density, and meanwhile, the graphene has the advantages of high temperature resistance and corrosion resistance, so that the graphene has the potential of replacing the field of the existing electric heating materials.
The resistance heating unit is commonly used in an electric heating system, and generally adopts materials such as metal foil, thin film coating, nickel wire, metal mesh and the like. The most used heating element is nichrome. However, for nichrome alloys, the following still appear to be insufficient at present: the density of the nickel-chromium alloy is large, and the thickness is several millimeters when the nickel-chromium alloy is used; the resistivity is low (-10-6 omega/m), the defects of low electrothermal conversion efficiency, low heating rate, no automatic constant temperature and power compensation function of a heating element, complex structure of an electrothermal system, large thermal inertia and the like still exist; the iron-chromium-aluminum is ferrite alloy, has normal temperature brittleness, 475 ℃ brittleness and high temperature brittleness above 1000 ℃, and finally causes short service life of the electric heating element due to low high temperature strength caused by the high temperature brittleness; the weldability of the alloy is poor and it is difficult to repair. Therefore, the development of heating elements with ultrahigh temperature, ultralow power consumption, long service life and rapid temperature rise is urgently needed.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides an ultra-low power consumption graphene high-temperature heating tube which can greatly improve the heat conversion efficiency.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides an ultra-low power consumption graphite alkene high temperature heating tube, this heating tube include graphite alkene heating core and wire, the wire is two, is located graphite alkene heating core's both sides, and the wire becomes integrative with graphite alkene heating core crimping, its characterized in that, graphite alkene heating core is made by the mixture that generates heat, and the composition ratio of the mixture that generates heat is as follows by mass parts component: 1-5 parts of graphene, 30-70 parts of insulating particles, 10-100 parts of ethanol and 3-30 parts of silicate.
Preferably, the insulating particles are any one or a combination of more of kaolin, mica powder, silicon dioxide, white carbon black, magnesium dioxide and titanium dioxide.
Preferably, the heat-generating mixture is prepared by the following steps:
(1) baking the graphene and the insulating particles;
(2) putting 1-5 parts of graphene treated in the step (1) and 30-70 parts of insulating particles into a stirrer according to a ratio, and uniformly mixing to obtain a mixture;
(3) sieving the mixture prepared in the step (2), adding 10-100 parts of ethanol, and sealing and stirring to prepare mixed slurry;
(4) and uniformly mixing the mixed slurry with 3-30 parts of silicate to prepare the graphene heating mixture.
Preferably, the graphene and the insulating particles are placed in a 250-degree oven to be dried.
Preferably, the heating device further comprises a support ring, and the support ring is located outside the metal wire and the graphene heating core.
Preferably, the graphene heating tube further comprises a quartz tube, inert gas is filled in the quartz tube, the graphene heating core is arranged in the quartz tube, two ends of the graphene heating core are sealed through oxyhydrogen flame, and the metal wire is reserved outside the quartz tube.
Preferably, the quartz glass tube further comprises quartz glass beads, wherein the quartz glass beads are arranged at two ends of the quartz tube and are in heat sealing with the metal wire.
Preferably, the metal wire is a molybdenum wire.
A manufacturing method of an ultra-low power consumption graphene high-temperature heating tube is characterized by comprising the following specific steps:
(1) enabling the graphene heating mixture to pass through a 1-15mm flower squeezing nozzle to form a graphene heating core semi-finished product;
(2) baking and annealing the semi-finished product of the graphene heating core to obtain the graphene heating core;
(3) the two metal wires are positioned on two sides of the graphene heating core, the metal wires and the graphene heating core are pressed into a whole in a hot press forming mode, and a plurality of metal supports are wound on the graphene heating core to obtain the graphene heating core;
(4) and placing the graphene heating wire into a quartz tube, vacuumizing the quartz tube, filling inert gas into the quartz tube, sealing two ends of the quartz tube by oxyhydrogen flame, and only leaving about 1cm of metal wire outside the quartz tube to obtain the ultra-high temperature graphene heating tube with ultra-low power consumption.
Compared with the prior art, the invention has the following beneficial technical effects:
1. in order to solve the problem that no physical force is generated in a high-temperature environment, the invention adopts a chemical mode different from a physical mode for connection, so that a connectable linkage chain is generated on the surface of graphene, the graphene is easy to be connected with other substances, the graphene is used for manufacturing a heating tube generating a high temperature of more than 350 ℃, the graphene is not reduced into graphite even in the high-temperature environment of as high as 900 ℃, and the original characteristics of the graphene are kept; meanwhile, the electron mobility of the graphene can reach 2 multiplied by 105cm2The invention selects the characteristics of 1200 ℃ high temperature resistance and 200kv/mm electrical insulation to prepare the proportion and matches the density to adjust the impedance, so the invention selects the insulation particles which satisfy the conditions of kaolin, mica powder, silicon dioxide, white carbon black, magnesium dioxide and titanium dioxide to mix and prepare; to meet the requirement of domestic standard voltageThe invention can complete the impedance according with the requirement only by testing various parameters and can control the impedance value to match with the direct current or alternating current voltage.
2. The graphene heating mixture has the advantages of simple manufacture, low cost and plasticity, and the heating core prepared from the graphene heating mixture has excellent quality and heating uniformity.
3. The ultra-high temperature heating tube of the ultra-low power consumption graphene has the advantages of good heating performance, low power consumption, short heating time, ultra-high temperature heating temperature and long service life; the heating appliance only needs 20% of power consumption of the traditional heating pipe, almost can replace all energy-consuming heating appliances, has the characteristics of low energy consumption and electricity saving, and can ensure that all people can use the heating appliance in cold winter, and the heating appliance can not be used any more because of saving electricity;
4. the heating tube can radiate far infrared rays when heating, can promote metabolism and improve the immune system of a human body, can be applied to the fields of family heating, medical equipment, industrial heating and the like, and creates a green and harmless environment.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural diagram of an ultra-low power consumption graphene high-temperature heating tube according to the present invention.
Fig. 2 is a schematic structural decomposition diagram of the ultra-low power consumption graphene high-temperature heating tube according to the present invention.
Reference is made to the accompanying drawings in which: the structure comprises a graphene heating core, a support ring, a metal wire, a quartz tube and a quartz glass bead, wherein the graphene heating core is 1, the support ring is 2, and the quartz glass bead is 5.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The utility model provides an ultra-low power consumption graphite alkene high temperature heating tube, this heating tube include graphite alkene generate heat core 1 and wire 3, and wire 3 is two, is located graphite alkene generate heat core 1's both sides, and wire 3 and graphite alkene generate heat the core through the mode crimping of hot pressing become integrative, on graphite alkene generate heat the core, roll up several metal support, graphite alkene generate heat the core by the mixture that generates heat and make, the composition ratio of the mixture that generates heat is as follows with the mass share component: 1-5 parts of graphene, 30-70 parts of insulating particles, 10-100 parts of ethanol and 3-30 parts of silicate. The heating core comprises the following components in parts by mass: 1-5 parts of graphene, 30-70 parts of insulating particles, 10-100 parts of ethanol and 3-30 parts of silicate.
The graphene heating core 1 is arranged in the quartz tube 4, and the quartz tube can resist high temperature of 1200 ℃, is non-conductive and has light transmission property, so that the requirements of the heating tube can be met; inert gas is filled in the quartz tube 4, quartz glass beads 5 are placed at the front end and the rear end of the quartz tube and are sintered to be in a molten state by oxyhydrogen flame to be sealed, and metal wires are left outside the quartz tube. Still include support ring 2, support ring 2 is located outside wire 3 and the graphite alkene heating core 1.
Since the electron mobility of graphene can reach 2 × 105cm2/Vs, the characteristics of 1200-degree high temperature resistance and 200kv/mm electrical insulation are required to be selected for blending proportion and the density is required to adjust the impedance, so that the insulating particles satisfying the conditions of kaolin, mica powder, silicon dioxide, white carbon black, magnesium dioxide and titanium dioxide are selected for blending. Meanwhile, the metal wire is made of molybdenum with width capable of resisting 2500 ℃ high temperature of oxyhydrogen flame.
In order to match the requirement of domestic standard voltage, the electron mobility of each material needs to be allocated and mixed with the electric insulation matching, the impedance meeting the requirement can be completed by testing various different parameters, the impedance value can be controlled to match with the direct current or alternating current voltage, and the specific production mode is illustrated as follows:
example 1:
a heating element added with graphene comprises the following steps of:
(1) placing the graphene and the insulating particles in a 250-degree oven for drying;
(2) putting 1 part of the graphene processed in the step (1) and 70 parts of insulating particles into a stirrer according to the proportion for uniform mixing to prepare a mixture;
(3) sieving the mixture prepared in the step (2), adding 100 parts of ethanol, and sealing and stirring to prepare mixed slurry;
(4) and uniformly mixing the mixed slurry with 25 parts of silicate to prepare the graphene heating mixture.
The process for preparing the ultra-low power consumption graphene high-temperature heating tube from the graphene heating mixture comprises the following steps:
(1) enabling the graphene heating mixture to pass through a 6mm flower squeezing nozzle to form a graphene heating core semi-finished product;
(2) baking and annealing the semi-finished product of the graphene heating core to obtain the graphene heating core;
(3) the two metal wires are positioned on two sides of the graphene heating core, the metal wires and the graphene heating core are pressed into a whole in a hot press forming mode, and a plurality of metal supports are wound on the graphene heating core to obtain the graphene heating core;
(4) and placing the graphene heating wire into a quartz tube, vacuumizing the quartz tube, filling inert gas into the quartz tube, sealing two ends of the quartz tube by oxyhydrogen flame, and only leaving about 1cm of metal wire outside the quartz tube to obtain the ultra-high temperature graphene heating tube with ultra-low power consumption.
Example 2:
a heating element added with graphene comprises the following steps of:
(1) placing the graphene and the insulating particles in a 250-degree oven for drying;
(2) putting 3 parts of graphene processed in the step (1) and 37 parts of insulating particles into a stirrer according to a ratio, and uniformly mixing to obtain a mixture;
(3) sieving the mixture prepared in the step (2), adding 55 parts of ethanol solvent, and sealing and stirring to prepare mixed slurry;
(4) and uniformly mixing the mixed slurry with 17 parts of silicate to prepare the graphene heating mixture.
The process for preparing the ultra-low power consumption graphene high-temperature heating tube from the graphene heating mixture comprises the following steps:
(1) enabling the graphene heating mixture to pass through a 10mm flower squeezing nozzle to form a graphene heating core semi-finished product;
(2) baking and annealing the semi-finished product of the graphene heating core to obtain the graphene heating core;
(3) the two metal wires are positioned on two sides of the graphene heating core, the metal wires and the graphene heating core are pressed into a whole in a hot press forming mode, and a plurality of metal supports are wound on the graphene heating core to obtain the graphene heating core;
(4) and placing the graphene heating wire into a quartz tube, vacuumizing the quartz tube, filling inert gas into the quartz tube, sealing two ends of the quartz tube by oxyhydrogen flame, and only leaving about 1cm of metal wire outside the quartz tube to obtain the ultra-high temperature graphene heating tube with ultra-low power consumption.
Example 3:
a heating element added with graphene comprises the following steps of:
(1) placing the graphene and the insulating particles in a 250-degree oven for drying;
(2) putting 5 parts of graphene processed in the step (1) and 68 parts of insulating particles into a stirrer according to a ratio to be uniformly mixed to prepare a mixture;
(3) sieving the mixture prepared in the step (2), adding 77 parts of ethanol, and sealing and stirring to prepare mixed slurry;
(4) and uniformly mixing the mixed slurry with 29 parts of silicate to prepare the graphene heating mixture.
The process for preparing the ultra-low power consumption graphene high-temperature heating tube from the graphene heating mixture comprises the following steps:
(1) enabling the graphene heating mixture to pass through a 3mm flower squeezing nozzle to form a graphene heating core semi-finished product;
(2) baking and annealing the semi-finished product of the graphene heating core to obtain the graphene heating core;
(3) the two metal wires are positioned on two sides of the graphene heating core, the metal wires and the graphene heating core are pressed into a whole in a hot press forming mode, and a plurality of metal supports are wound on the graphene heating core to obtain the graphene heating core;
(4) and placing the graphene heating wire into a quartz tube, vacuumizing the quartz tube, filling inert gas into the quartz tube, sealing two ends of the quartz tube by oxyhydrogen flame, and only leaving about 1cm of metal wire outside the quartz tube to obtain the ultra-high temperature graphene heating tube with ultra-low power consumption.
The heating tube of graphene prepared in examples 1-3 was subjected to a long-term energization test, and the heating efficiency was stable and the power consumption was low. The element can achieve energy-saving high-temperature heating with the temperature of more than 350 ℃ in 10 watt-hour to 350 watt-hour. The materials can be selected according to market demands and different proportions are used to produce products meeting the performance. The basis of the above-mentioned different raw material mixing ratio applicable to different voltage environments is that according to the voltage source used (dc voltage or ac voltage) and the expected heating temperature (power consumption), according to the relevant formula of electricity consumption, the dc power P is equal to IV; alternating current power P is IVCOS theta; according to ohm's law, V ═ IR (where P ═ power, I ═ current, V ═ voltage, R ═ resistance, and θ ═ power factor), the voltage and power are known, the resistance R required by the designed heating tube can be calculated by applying the formula, and then the resistance designed by the heating tube can be obtained by adjusting the ratio of graphene to insulating particles (the higher the graphene ratio is, the higher the resistance R is, and vice versa, so as to meet the requirements of the user on the use voltage (direct current or alternating current) and the temperature.
Although the invention has been described in detail hereinabove with respect to a general description and specific embodiments thereof, it will be apparent to those skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. The utility model provides an ultra-low power consumption graphite alkene high temperature heating tube, this heating tube include graphite alkene heating core and wire, the wire is two, is located graphite alkene heating core's both sides, and the wire becomes integrative with graphite alkene heating core crimping, its characterized in that, graphite alkene heating core is made by the mixture that generates heat, the composition ratio of the mixture that generates heat is as follows by mass parts component: 1-5 parts of graphene, 30-70 parts of insulating particles, 10-100 parts of ethanol and 3-30 parts of silicate.
2. A heating tube according to claim 1, wherein the insulating fine particles are one or more of kaolin, mica powder, silica, white carbon black, magnesium dioxide, and titanium dioxide.
3. A heating tube as set forth in claim 1, wherein the heating mix is prepared by the steps of:
(1) baking the graphene and the insulating particles;
(2) putting 1-5 parts of graphene treated in the step (1) and 30-70 parts of insulating particles into a stirrer according to a ratio, and uniformly mixing to obtain a mixture;
(3) sieving the mixture prepared in the step (2), adding 10-100 parts of ethanol, and sealing and stirring to prepare mixed slurry;
(4) and uniformly mixing the mixed slurry with 3-30 parts of silicate to prepare the graphene heating mixture.
4. The heating tube according to claim 3, wherein in the step (1), the graphene and the insulating particles are dried in a 250-degree oven.
5. A heat generation tube according to claim 1, further comprising a support ring between the wire and the graphene heat generation core.
6. The heating tube of claim 1, further comprising a quartz tube filled with an inert gas, wherein the graphene heating core is disposed in the quartz tube, and both ends of the graphene heating core are sealed by oxyhydrogen flame, leaving a metal wire outside the quartz tube.
7. A heat generating tube as defined in claim 6, further comprising quartz beads provided at both ends of the quartz tube, heat-sealed with the metal wires.
8. A heat generating tube as set forth in claim 1, wherein the metal wire is a molybdenum wire.
9. The manufacturing method of the ultra-low power consumption graphene high-temperature heating tube according to the claims 1 to 8, characterized by comprising the following specific steps:
(1) enabling the graphene heating mixture to pass through a 1-15mm flower squeezing nozzle to form a graphene heating core semi-finished product;
(2) baking and annealing the semi-finished product of the graphene heating core to obtain the graphene heating core;
(3) placing two metal wires on two sides of a graphene heating core, pressing the metal wires and the graphene heating core into a whole in a hot press molding mode, and winding a support ring on the graphene heating core to obtain the graphene heating wire;
(4) and sealing two ends of the graphene heating wire to obtain the ultra-low power consumption graphene high-temperature heating tube.
10. The manufacturing method according to claim 9, wherein in the step (4), the graphene heating wire is placed in a quartz tube, the quartz tube is vacuumized and filled with inert gas, the two ends of the quartz tube are sealed by oxyhydrogen flame, and only about 1cm of metal wire is left outside the quartz tube, so that the ultra-low power consumption graphene high-temperature heating tube is obtained.
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WO2018008695A1 (en) * | 2016-07-05 | 2018-01-11 | 国際環境開発株式会社 | Heat-generating device and method for producing same |
CN207184846U (en) * | 2017-07-24 | 2018-04-03 | 尚凡勇 | Graphene is heated at high temperature structure |
CN108135037A (en) * | 2018-01-24 | 2018-06-08 | 黄冈科瑞恩信息科技有限公司 | A kind of graphene superconductive far infrared heat generating pastes preparation method |
CN108684092A (en) * | 2018-06-29 | 2018-10-19 | 太仓考斯茂石英有限公司 | Applied to the carbon fiber heaters in chip wet manufacturing process |
CN109206961A (en) * | 2018-09-08 | 2019-01-15 | 中山励诺包装制品有限公司 | A kind of graphene conductive heat-conductive coating and preparation method thereof |
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