CN207457347U - A kind of test system for 1600 DEG C of high-temperature resistivities of graphite heater material - Google Patents
A kind of test system for 1600 DEG C of high-temperature resistivities of graphite heater material Download PDFInfo
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- CN207457347U CN207457347U CN201721563172.5U CN201721563172U CN207457347U CN 207457347 U CN207457347 U CN 207457347U CN 201721563172 U CN201721563172 U CN 201721563172U CN 207457347 U CN207457347 U CN 207457347U
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Abstract
The utility model is related to a kind of test systems for 1600 DEG C of high-temperature resistivities of graphite heater material, including high temperature furnace, high-temperature clamp, test system, recirculating cooling water system, vacuum pump and inert gas bottle, high-temperature clamp is positioned in high temperature furnace, using high-temperature clamp by sample and conductor clamping, and conducting wire is drawn to being connected with test system outside stove, vacuum pump and inert gas bottle is recycled to be vacuumized and led to inert gas to high temperature furnace respectively, ensure that carbon material is not oxidized at high temperature, the test of carbon material high-temperature resistivity (room temperature is to 1600 DEG C) can be achieved, it is and adjustable for placing the placement space size of sample on high-temperature clamp, it is limited using from sample size, practicability is good, measuring accuracy is high, solves the technical issues of test of carbon material high-temperature resistivity.
Description
Technical field
The utility model is related to Material Testing Technology and test equipment technical fields, are specially that one kind is used for graphite heater
The test system of 1600 DEG C of high-temperature resistivities of material.
Background technology
Carbon material is due to excellent properties quilts such as its intensity height, heat resistance, stable chemical performance and good electric conductivities
It is widely used in the fields such as photovoltaic, non-ferrous metal continuous casting, electric spark, high temperature gas cooled reactor, chemical industry, metallurgy, machinery, aerospace.It is high-purity
Graphite heater material be pulling of crystals, polycrystalline cast ingot, optical fiber prepare etc. the essential thermal field material in fields, temperature in use
About 1600 DEG C.With the variation of temperature, the resistivity of carbon material can change therewith, this selection changed to device,
Precision of safety, manufacture cost and instrument etc. has vital influence, to understanding carbon material physical property, especially
It is that electrical property plays vital directive function.
Current measuring apparatus is to carry out at room temperature, low-temperature resistivity instrument equipment equipment in a little researcher's exploitation,
But test temperature is at 600 DEG C or so.Therefore, measure carbon material high-temperature resistivity to 1600 DEG C of high temperature when method also not into
It is ripe, heater carbon material can not be met, particularly the demand of high purity graphite material high-temperature resistivity data application.Because charcoal
Oxidizable under cellulosic material high temperature, the high temperature resistance limitation of test device, difficulty is added to test equipment and method in addition.Cause
This is the requirement for meeting practical application, and there is an urgent need to a kind of carbon material high-temperature resistivities with higher reliability and stability
The test system and method for (room temperature is to 1600 DEG C).
Disclosed in the Chinese patent of Patent No. CN1250874 it is a kind of measure resistivity of carbon-contained refractory material method and
Equipment, the composition of the equipment is that card has the tested sample for applying antioxidizing paint in the in vivo fixed seat of stove, and is passed using machinery
It leads mechanism to be required according to designer, appropriate pressure is applied to sample, be to prevent sample oxidation from should use protective gas in measurement
Protection heating, but it is more suitable for the continuous measurement of resistivity when refractory material varies with temperature.
Utility model content
In view of the above problems, the utility model aim is to provide one kind for 1600 DEG C of high temperature resistances of graphite heater material
The test system of rate by high-temperature clamp by sample and conductor clamping, then vacuumizes high temperature furnace and leads to inert gas, protects
It is not oxidized at high temperature to demonstrate,prove carbon material, solves the technical issues of test of carbon material high-temperature resistivity, and system knot
Structure is simple, and test is reliable and stable.
To achieve the above object, the utility model provides following technical solution：
A kind of test system for 1600 DEG C of high-temperature resistivities of graphite heater material, including：
High temperature furnace, the high temperature furnace include furnace body and heating chamber；
High-temperature clamp, the high-temperature clamp are arranged in the heating chamber, and work is clamped to sample；
Test system, the test system are arranged at the one side outside the high temperature furnace, are electrically connected with the sample；
Recirculating cooling water system, the recirculating cooling water system are arranged at the same of the high temperature furnace with the test system
Side is connected by pipeline with the high temperature furnace；
Vacuum pump, the vacuum pump are arranged at the opposite side of the high temperature furnace compared with the test system, pass through pipe
Road is connected with the high temperature furnace；And
Inert gas bottle, the inert gas bottle are arranged at the same side of the high temperature furnace with the vacuum pump, pass through
Pipeline is connected with the high temperature furnace.
As an improvement, the high temperature furnace is vacuum high-temperature atmosphere furnace.
As an improvement, offering several through holes on the furnace body, the through hole includes hole a, hole b, hole c and hole d.
As an improvement, the recirculating cooling water system is connected to hole a and hole b by pipeline；Vacuum pump is connected by pipeline
In hole c；The inert gas bottle is connected to hole d by pipeline.
As an improvement, the high-temperature clamp includes pedestal and the first baffle being symmetrically arranged on the pedestal and second
Baffle forms placement space between the first baffle and second baffle.
As an improvement, the first baffle and second baffle be removably mounted to by bolt, nut fit system it is described
On pedestal.
Component is held out against as an improvement, further including, the component that holds out against is installed on the pedestal, and places sky positioned at described
Between it is outer, push-tight work is carried out to the first baffle.
As an improvement, the component that holds out against includes mounting portion and screw rod, the mounting portion passes through bolt, nut fit system
It is removably mounted on the pedestal, the screw rod is symmetrically rotatably dispose on the mounting portion along its length.
A kind of test method for 1600 DEG C of high-temperature resistivities of graphite heater material, including：
Step 1：Sample is loaded, sample is placed in the placement space of high-temperature clamp, sample is clamped by screwing screw rod
And ampere wires are to sample both ends, in the hole that in addition two conducting wires insertion samples are reserved；
Step 2：Connecting wire, the outer extraction wire of stove are connected on resistivity measurement system electrode；
Step 3：Vacuum pump carries out vacuumize process to high temperature furnace, then opens inert gas bottle and be passed through inert gas；
Step 4：Heating records resistivity value.The temperature program of high temperature furnace is set, and heating chamber starts to warm up, and passes through resistance
Resistivity measurement value under rate tester record different temperatures.
The beneficial effects of the utility model are：
(1) the utility model is clamped sample and lead using high-temperature clamp, then high temperature furnace is vacuumized and is led to lazy
Property gas, after in-furnace temperature rises to 1600 DEG C from ambient-temp-stable, ensure carbon material it is not oxidized at high temperature, pass through test
System log data is, it can be achieved that the test of carbon material high-temperature resistivity；
(2) major part of test resistance rate makes the resistance of conducting wire substantially not outside high temperature furnace i.e. in normal temperature environment
Change with the temperature change of sample, ensure that the reliability and stability of high temperature resistance test；
(3) it is adjustable for placing the placement space size of sample on high-temperature clamp, it limits, uses using from sample size
Property is good and at low cost, easy to use.
The advantages that sample size is adjustable in conclusion the utility model has, easy to operate, and measuring accuracy is high, it is especially suitable
For Material Testing Technology and test equipment technical field.
Description of the drawings
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the utility model partial structural diagram；
Fig. 3 is the utility model high-temperature clamp overall structure diagram；
Fig. 4 is the utility model high-temperature clamp side structure schematic view；
Fig. 5 is the utility model high-temperature clamp overlooking the structure diagram；
Fig. 6 is resistivity curve relational graph at a high temperature of graphite material.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
In the description of the utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ",
The orientation or position relationship of the instructions such as " clockwise ", " counterclockwise " be based on orientation shown in the drawings or position relationship, be only for
Convenient for description the utility model and simplify description rather than instruction or imply signified equipment or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the utility model, " multiple " are meant that two or two
More than, unless otherwise specifically defined.
Embodiment one
As shown in Figure 1, a kind of test system for 1600 DEG C of high-temperature resistivities of graphite heater material, including：
High temperature furnace 1, the high temperature furnace 1 include furnace body 11 and heating chamber 12；
High-temperature clamp 2, the high-temperature clamp 2 are arranged in the heating chamber 12, and work is clamped to sample 3；
Test system 4, the test system 4 are arranged at the one side outside the high temperature furnace 1, with the sample 3 by leading
Line 31 is electrically connected；
Recirculating cooling water system 5, the recirculating cooling water system 5 are arranged at the high temperature furnace 1 with the test system 4
The same side is connected by pipeline with the high temperature furnace 1；
Vacuum pump 6, the vacuum pump 6 are arranged at the opposite side of the high temperature furnace 1 compared with the test system 4, lead to
Piping is connected with the high temperature furnace 1；And
Inert gas bottle 7, the inert gas bottle 7 are arranged at the same side of the high temperature furnace 1 with the vacuum pump 6,
It is connected by pipeline with the high temperature furnace 1.
It should be noted that sample 3 be put into high-temperature clamp 2 and with the conducting wire for being used for transmission test electric current at both ends
31 are clamped together, and two apertures are reserved on sample 3, are inserted into other two conducting wires 31, for measuring voltage, four conducting wires 31 are led
It draws and is electrically connected outside furnace body 11 with test system 4；Furnace body is closed, and the work of vacuum sheet 6 carries out vacuumize process, then indifferent gas
Body bottle 7 is passed through inert gas into heating chamber 12, ensures not oxidized under carbon material high temperature, and the work of high temperature furnace 1 sets liter
Warm program simultaneously starts to warm up, and test system 4 records resistivity measurement value under different temperatures.
It should be further noted that the material of conducting wire 31 is molybdenum filament, molybdenum filament is respectively fitted in ceramic tube, to prevent higher temperature line
Softening has an impact test data.
As a preferred embodiment, the high temperature furnace 1 is vacuum high-temperature atmosphere furnace, the control of vacuum high-temperature atmosphere furnace
Warm precision is ± 0.5 DEG C.
As shown in Fig. 2, as a preferred embodiment, offer several through holes 111 on the furnace body 11, it is described logical
Hole 111 includes hole a, hole b, hole c and hole d.
As a preferred embodiment, the recirculating cooling water system 5 is connected to hole a and hole b by pipeline；Very
Sky pump 6 is connected to hole c by pipeline；The inert gas bottle 7 is connected to hole d by pipeline.
As shown in Fig. 3, Fig. 4 and Fig. 5, as a preferred embodiment, the high-temperature clamp 2 include pedestal 21 and
The first baffle 22 and second baffle 23 being symmetrically arranged on the pedestal 21, between the first baffle 22 and second baffle 23
Form placement space 20.
As a preferred embodiment, the first baffle 22 and second baffle 23 pass through bolt 221, nut 222
Fit system is removably mounted on the pedestal 21.
It should be noted that several mounting holes 210 are symmetrically offered on pedestal 21, according to the size pair of the sample 3 of measurement
First baffle 22 and the position of second baffle 23 are adjusted, and 210 perforate of mounting hole is convenient and efficient.
Component 24 is held out against as a preferred embodiment, further including, the component 24 that holds out against is installed on the pedestal
On 21, and (outside 20, push-tight work is carried out to the first baffle 22 positioned at the placement space.
As a preferred embodiment, the component 24 that holds out against includes mounting portion 241 and screw rod 242, the installation
Portion 241 is removably mounted to by bolt 221,222 fit system of nut on the pedestal 21, and the screw rod 242 is along its length
Direction is symmetrically rotatably dispose on the mounting portion 241.
It should be noted that sample 3 is placed in placement space 20, sample 3 and electric current are clamped by rotary screw 242
Conducting wire 31 so that sample 3 is in close contact with conducting wire 31, place during the experiment conducting wire 31 be in contact with sample 3 it is bad,
Influence experiment.
It should be further noted that pedestal 21, bolt 221, nut 222, the material of mounting portion 241 and screw rod 242
Both preferably graphite, can also select boron nitride, and carbon composite also can be selected in bolt 221, nut 222 and screw rod 242；
The material of first baffle 22 and second baffle 23 is boron nitride, and boron nitride has good insulating properties, and has at high temperature near
The thermal conductivity of metal is similar to, high temperature resistant is easily worked shaping to nearly 2000 DEG C.The test fixture of the present embodiment has nonmetallic survey
The advantages of good insulating of amount fixture, sample can contact directly, but the thermal conductivity with metallic test fixture is good, heat safe
Advantage.
Embodiment two
Ability additionally provides a kind of test method for 1600 DEG C of high-temperature resistivities of graphite heater material, bag with new
It includes：
Step 1：Sample 3 is loaded, sample 3 is placed in the placement space 20 of high-temperature clamp 2, by screwing screw rod 242
Sample 3 and ampere wires are clamped to sample both ends, in the hole that in addition two conducting wire insertion samples 2 are reserved；
Step 2：Connecting wire, the outer extraction wire of stove are connected on resistivity measurement system electrode；
Step 3：Vacuum pump 6 carries out vacuumize process to high temperature furnace 2, then opens inert gas bottle 7 and be passed through inert gas；
Step 4：Heating records resistivity value.The temperature program of high temperature furnace 2 is set, and heating chamber 12 is started to warm up, passed through
Resistivity measurement value under resistivity tester record different temperatures
Using above-mentioned test device and method in the present embodiment, the high-temperature resistivity of graphite is measured, temperature model
It is room temperature to 1600 DEG C to enclose, and a temperature spot is taken to measure corresponding resistivity value every 100 DEG C, and Fig. 6 is its high-temperature resistivity pair
Answer the curve relation figure of temperature.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (8)
1. a kind of test system for 1600 DEG C of high-temperature resistivities of graphite heater material, which is characterized in that including：
High temperature furnace (1), the high temperature furnace (1) include furnace body (11) and heating chamber (12)；
High-temperature clamp (2), the high-temperature clamp (2) are arranged in the heating chamber (12), and work is clamped to sample (3)
Make；
Test system (4), the test system (4) are arranged at the one side of the high temperature furnace (1) outside, with the sample (3) electricity
Connection；
Recirculating cooling water system (5), the recirculating cooling water system (5) are arranged at the high temperature furnace with the test system (4)
(1) the same side is connected by pipeline with the high temperature furnace (1)；
Vacuum pump (6), the vacuum pump (6) are arranged at the opposite side of the high temperature furnace (1) compared with the test system (4),
It is connected by pipeline with the high temperature furnace (1)；And
Inert gas bottle (7), the inert gas bottle (7) are arranged at the same of the high temperature furnace (1) with the vacuum pump (6)
Side is connected by pipeline with the high temperature furnace (1).
2. a kind of test system for 1600 DEG C of high-temperature resistivities of graphite heater material according to claim 1,
It is characterized in that, the high temperature furnace (1) is vacuum high-temperature atmosphere furnace.
3. a kind of test system for 1600 DEG C of high-temperature resistivities of graphite heater material according to claim 1,
It is characterized in that, several through holes (111) are offered on the furnace body (11), and the through hole (111) includes hole a, hole b, hole c and hole
d。
4. a kind of test system for 1600 DEG C of high-temperature resistivities of graphite heater material according to claim 3,
It is characterized in that, the recirculating cooling water system (5) is connected to hole a and hole b by pipeline；Vacuum pump (6) is connected to by pipeline
Hole c；The inert gas bottle (7) is connected to hole d by pipeline.
5. a kind of test system for 1600 DEG C of high-temperature resistivities of graphite heater material according to claim 1,
It is characterized in that, the high-temperature clamp (2) includes pedestal (21) and the first baffle being symmetrically arranged on the pedestal (21)
(22) and second baffle (23) placement space (20), is formed between the first baffle (22) and second baffle (23).
6. a kind of test system for 1600 DEG C of high-temperature resistivities of graphite heater material according to claim 5,
It is characterized in that, the first baffle (22) and second baffle (23) are detachable by bolt (221), nut (222) fit system
It is installed on the pedestal (21).
7. a kind of test system for 1600 DEG C of high-temperature resistivities of graphite heater material according to claim 5,
It is characterized in that, further includes and hold out against component (24), the component (24) that holds out against is installed on the pedestal (21), and is put positioned at described
(20) outside, push-tight work are carried out to the first baffle (22) between emptying.
8. a kind of test system for 1600 DEG C of high-temperature resistivities of graphite heater material according to claim 7,
It is characterized in that, the component (24) that holds out against includes mounting portion (241) and screw rod (242), the mounting portion (241) and the pedestal
(21) it is fixedly connected, the screw rod (242) is symmetrically rotatably dispose in along its length on the mounting portion (241).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721563172.5U CN207457347U (en) | 2017-11-21 | 2017-11-21 | A kind of test system for 1600 DEG C of high-temperature resistivities of graphite heater material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721563172.5U CN207457347U (en) | 2017-11-21 | 2017-11-21 | A kind of test system for 1600 DEG C of high-temperature resistivities of graphite heater material |
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| Publication Number | Publication Date |
|---|---|
| CN207457347U true CN207457347U (en) | 2018-06-05 |
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| CN201721563172.5U Active CN207457347U (en) | 2017-11-21 | 2017-11-21 | A kind of test system for 1600 DEG C of high-temperature resistivities of graphite heater material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285677A (en) * | 2019-05-28 | 2019-09-27 | 江苏大学 | A kind of miniature electric current heating quick anneal oven and heated jig |
| CN111812405A (en) * | 2020-05-22 | 2020-10-23 | 国网浙江省电力有限公司 | Insulation piercing connector resistance detection system |
| CN113092861A (en) * | 2019-12-23 | 2021-07-09 | 中南大学 | Detection clamp and detection system |
| CN114325103A (en) * | 2021-12-27 | 2022-04-12 | 中钢新型材料股份有限公司 | Carbon material thermal state resistivity nondestructive testing device and method |
-
2017
- 2017-11-21 CN CN201721563172.5U patent/CN207457347U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285677A (en) * | 2019-05-28 | 2019-09-27 | 江苏大学 | A kind of miniature electric current heating quick anneal oven and heated jig |
| CN113092861A (en) * | 2019-12-23 | 2021-07-09 | 中南大学 | Detection clamp and detection system |
| CN111812405A (en) * | 2020-05-22 | 2020-10-23 | 国网浙江省电力有限公司 | Insulation piercing connector resistance detection system |
| CN111812405B (en) * | 2020-05-22 | 2023-06-30 | 国网浙江省电力有限公司 | Insulation puncture clamp resistance detection system |
| CN114325103A (en) * | 2021-12-27 | 2022-04-12 | 中钢新型材料股份有限公司 | Carbon material thermal state resistivity nondestructive testing device and method |
| CN114325103B (en) * | 2021-12-27 | 2024-04-12 | 赛迈科先进材料股份有限公司 | Nondestructive testing device and method for thermal resistivity of carbon material |
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 313100, No. 9, Sinosteel Avenue, pheasant Town, Huzhou, Zhejiang, Changxing County Patentee after: Sinosteel new materials Co.,Ltd. Address before: 313100, No. 9, Sinosteel Avenue, pheasant Town, Huzhou, Zhejiang, Changxing County Patentee before: SINOSTEEL CORPORATION NEW MATERIAL (ZHEJIANG) Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 313100 9 Zhonggang Avenue, Chicheng Town, Huzhou City, Zhejiang Province Patentee after: Symantec Advanced Materials Co.,Ltd. Address before: 313100 9 Zhonggang Avenue, Chicheng Town, Changxing County, Huzhou City, Zhejiang Province Patentee before: Sinosteel new materials Co.,Ltd. |
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