CN207457120U - One kind tests novel clamp for 1600 DEG C of carbon material high-temperature resistivities - Google Patents
One kind tests novel clamp for 1600 DEG C of carbon material high-temperature resistivities Download PDFInfo
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- CN207457120U CN207457120U CN201721563863.5U CN201721563863U CN207457120U CN 207457120 U CN207457120 U CN 207457120U CN 201721563863 U CN201721563863 U CN 201721563863U CN 207457120 U CN207457120 U CN 207457120U
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Abstract
The utility model is related to one kind novel clamp is tested for 1600 DEG C of carbon material high-temperature resistivities, including pedestal and the clamp assembly being installed on the pedestal, clamp assembly is used to clamp sample and metal lead wire, and the clamp assembly includes symmetrically arranged first baffle and second baffle, it is formed with to place the placement space of sample between first baffle and second baffle, and the big I of grasping part is adjusted by the positioning hole on pedestal；Clamp assembly adopts the other components such as boron nitride, pedestal using graphite, not only ensure that the insulation of sample, but also saving material, and had just had the advantages that heatproof temperature high (to 1600 DEG C), sample size is adjustable, is easily worked shaping.
Description
Technical field
The utility model is related to material testing apparatus technical fields, are specially that one kind is used for 1600 DEG C of carbon material high-temperature electrics
Resistance rate tests novel clamp.
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.
The measurement of high-temperature resistivity is limited be subject to measurement sample clamp, and conventional clamp is roughly divided into metal fixture and Fei Jin
Belong to fixture.
(1) metal fixture
Metal has good electric conductivity, so when being fabricated to high-temperature resistivity measured material loading sample, it is necessary to
Consider Insulation Problems.It to insulate between sample and fixture, the conducting wire and fixture drawn on sample will insulate.And existing fixture is general
Commonly used dielectric, such as the highests heatproof such as polytetrafluoroethylene (PTFE) temperature are no more than 500 DEG C or so, can so limit folder significantly
The temperature of tool uses section.And if use quartz or diamond etc. can high-temperature insulation material, processing technology is complicated, into
This is high, therefore limits the exploitation and use of this kind of fixture.In addition, it is also contemplated that the fusing point of metal fixture, 1600 DEG C of high temperature
In the environment of, it is common to use iron, cast iron, aluminium, steel, copper etc. can not be used.Metal cost of the fusing point higher than 1600 DEG C is excessively
It is high inapplicable.
(2) nonmetallic fixture
Common nonmetallic fixture, often uses the high molecular polymers such as engineering plastics, is asked although insulation can be solved
Topic, but existing engineering plastics heatproof is only up to 600 DEG C or so, thermal conductivity and heat safe property can limit the temperature of fixture
Degree uses section.In addition, existing nipper, the wire interconnecting piece position on conducting wire and fixture drawn on sample, one
As connected using scolding tin welding or the mode of spring pressuring plate.But there are scolding tin thawing, spring pressuring plates under high temperature to lose bullet
Property the problem of so that coupling part loosen slide, cause measurement fail.
In view of the above problems, exploring suitable material and rational designing scheme, go to solve the problems, such as that existing fixture exists,
A fixture for being still capable of good support electrical properties within the temperature range of up to 1600 DEG C is obtained to heat carbon material
Device application is of great significance.
Utility model content
It is tested in view of the above problems, the utility model aim is to provide one kind for 1600 DEG C of carbon material high-temperature resistivities
Novel clamp clamps sample using clamp assembly, can complete the detection of carbon material high-temperature resistivity at 1600 DEG C, and can pass through
Positioning hole on pedestal changes the grasping part size of clamp assembly, solves conventional high temperature resistivity measurement fixture heatproof temperature
The technical issues of low, sample size limits.
To achieve the above object, the utility model provides following technical solution：
One kind tests novel clamp for 1600 DEG C of carbon material high-temperature resistivities, including pedestal and is installed on the base
Clamp assembly on seat, the clamp assembly is for clamping sample and metal lead wire, and the clamp assembly is including symmetrically arranged
First baffle and second baffle are formed with to place the placement space of sample between the first baffle and second baffle.
As an improvement, symmetrically being opened up along its length on the pedestal, there are two location hole and several positioning holes, institutes
State the right side that location hole is located at the pedestal；The remotely located hole of the positioning hole is located at the left side of the pedestal.
As an improvement, the first baffle and the second baffle fasten peace respectively by bolt, nut fit system
At the location hole and positioning hole.
As an improvement, the first baffle includes with second baffle：
Clamping section is opened up on the clamping section fluted；
Fixed part, the fixed part are integrally formed with the clamping section and set, and are located at the both ends of the clamping section, and its
On offer circular hole.
Component is held out against as an improvement, further including, the component that holds out against is installed on the pedestal, is located at the first gear
The right side of plate, and it contradicts with the first baffle and sets.
As an improvement, the component that holds out against includes：
Mounting portion, the mounting portion are fixedly installed on the right side of the pedestal, have symmetrically opened mounting hole, the peace thereon
Dress hole is located at the fixed part；
Top tight pieces, the top tight pieces are contradicted through the mounting hole and the first baffle and set, to clamp assembly into
Row makes play.
As an improvement, the top tight pieces are arranged to graphite screw rod.
As an improvement, measured hole has been opened at the middle part of the first baffle and second baffle, which is located at described
Groove.
As an improvement, symmetrically offer preset holes on the sample.
It is arranged at as an improvement, the metal lead wire is respectively interposed in the measured hole and preset holes.
The beneficial effects of the utility model are：
(1) the utility model passes through graphite screw and stone by the pedestal of graphite and the clamp assemblies of boron carbide
Clamp assemblies are fixed on pedestal by black nut, and the placement space of clamping sample is useful in clamp assemblies, can realize high temperature
The measurement of resistivity under (1600 DEG C), and simple in structure, easy processing shaping, it is at low cost；
(2) graphite base can process the positioning hole of different position according to sample size demand, and the placement in clamp assemblies is empty
Between size adjustable, limited from sample size during use, practicability is good；
(3) the utility model makes to be used for sample and two clamp assemblies by the way that top tight pieces is set to promote clamp assemblies
The metal lead wire of transmission test electric current clamps closer, improves stability.
In conclusion the utility model has many advantages, such as that high temperature resistant, sample size are adjustable, is easily worked, it is particularly suitable for
Material testing apparatus technical field.
Description of the drawings
Fig. 1 is the utility model dimensional structure diagram；
Fig. 2 is the utility model overlooking the structure diagram；
Fig. 3 is the utility model base construction schematic diagram；
Fig. 4 is the utility model clamp assembly structure diagram；
Fig. 5 holds out against component structure diagram for the utility model；
Fig. 6 is the utility model schematic cross-sectional view；
Fig. 7 is enlarged structure schematic diagram at A in Fig. 6.
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 Figures 1 and 2, it is a kind of to test novel clamp for 1600 DEG C of carbon material high-temperature resistivities, including pedestal 1
And the clamp assembly 2 on the pedestal 1 is installed on, the clamp assembly 2 is used to clamp sample 3 and metal lead wire 4, and the folder
Tight component 2 includes symmetrically arranged first baffle 21 and second baffle 22, shape between the first baffle 21 and second baffle 22
Into the placement space 5 for being useful for placing sample 3.
It should be noted that only a baffle 21 and the second baffle that are wherein contacted with sample 3 and metal lead wire 4
22, first baffle 21 and second baffle 22 are process using high temperature resistant, insulation, easily molded boron nitride material, can be met
The demand of resistivity measurement under high temperature (1600 DEG C).
It should be further noted that according to high-temperature resistivity test fixture provided by the utility model, mainly using nitrogen
Change boron and graphite material is made.Boron nitride has good insulating properties, and has the thermal conductivity for being similar to metal at high temperature, resistance to
High temperature is easily worked shaping to nearly 2000 DEG C.The test fixture of the present embodiment has the good insulating of nonmetallic measured material, sample
The advantages of product can contact directly, and have the advantages that the thermal conductivity of metallic test fixture is good, heat safe.
What deserves to be explained is wherein pedestal 1 can also use other shapes, as long as can be by boron nitride baffle (i.e. first
Baffle 21 and second baffle 22) it fixes.The shape of pedestal 1 can also change according to the environment of high temperature furnace, to reach
The purpose that fixture is facilitated to place.
As shown in Figures 1 and 3, as a preferred embodiment, symmetrically being opened up along its length on the pedestal 1
There are two location hole 11 and several positioning holes 12, the location hole 11 is located at the right side of the pedestal 1；The positioning hole 12 is remote
From the left side that location hole 11 is located at the pedestal 1.
Wherein, the first baffle 21 and the second baffle 22 fasten peace respectively by bolt, nut fit system
At the location hole 11 and positioning hole 12.
It should be noted that pedestal 1, screw, nut and top top tight pieces 62 will not all contact sample 3 or metal lead wire
4, high temperature resistant may be employed, easily molded, relative low price graphite material is process.
It should be further noted that graphite base 1 can make different positioning holes 12 according to the length of sample 3, it is used for
Interspersed screw rod, and then 3 practicability of sample that can test different length is good and at low cost.
As shown in figure 4, as a preferred embodiment, the first baffle 21 includes with second baffle 22：
Clamping section 211 opens up fluted 2111 on the clamping section 211；
Fixed part 212, the fixed part 212 are integrally formed with the clamping section 211 and set, and are located at the clamping section
211 both ends, and circular hole 2121 is offered thereon.
Component 6 is held out against as a preferred embodiment, further including, the component 6 that holds out against is installed on the pedestal 1
On, positioned at the right side of the first baffle 21, and itself and the first baffle 21 are contradicted and set.
As shown in figure 5, as a preferred embodiment, the component 6 that holds out against includes：
Mounting portion 61, the mounting portion 61 are fixedly installed on the right side of the pedestal 1, have symmetrically opened mounting hole thereon
611, the mounting hole 611 is located at the fixed part 212；
Top tight pieces 62, the top tight pieces 62 are contradicted with the first baffle 21 through the mounting hole 611 and set, to folder
Tight component 2 makes play.
Further, the top tight pieces 62 are arranged to graphite screw rod.
It should be noted that the preferred graphite of pedestal 1, screw, nut, screw rod, boron nitride can also be selected, screw rod,
Carbon composite also can be selected in nut；By rotary screw clamp assemblies 2 is promoted to be allowed to contact well with sample 3.
As shown in Figures 6 and 7, as a preferred embodiment, in the first baffle 21 and second baffle 22
Portion has opened measured hole 210, which is located at the groove 2111.
As a preferred embodiment, symmetrically offer preset holes 31 on the sample 3.
Wherein, the metal lead wire 4, which is respectively interposed, is arranged in the measured hole 210 and preset holes 31.
It should be noted that two metal lead wires 4 are separately fixed at the both ends of sample 3 through measured hole 210, with folder
It holds component 2 to clamp closely, is used for transmission test electric current；Two metal lead wires 4 are inserted into the preset holes 31 that sample 3 is accomplished fluently in advance,
For measuring voltage.
It should be further noted that for four metal lead wires 4 using molybdenum filament, molybdenum filament is respectively fitted over pottery in the present embodiment
In porcelain tube, graphite base or screw nut are touched to prevent higher temperature line softening, causes test data inaccurate.
The course of work
Sample 3 is fixed on clamp assembly 2 before measurement, is measured by tightening nuts to clamp sample 3 and two insertions
Wire in hole 210, by the preset holes 31 reserved in advance of other two one metal wire insertion sample 3, this operation is all in high temperature
It is carried out in stove, confirms and be completely embedded, close fire door.Confirm that voltage and current silk is connected with resistivity measurement instrument outside high temperature furnace.
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 (10)
1. one kind tests novel clamps for 1600 DEG C of carbon material high-temperature resistivities, which is characterized in that including pedestal (1) and
The clamp assembly (2) being installed on the pedestal (1), the clamp assembly (2) are used to clamp sample (3) and metal lead wire (4),
And the clamp assembly (2) includes symmetrically arranged first baffle (21) and second baffle (22), the first baffle (21) and the
It is formed with to place the placement space (5) of sample (3) between two baffles (22).
It is 2. according to claim 1 a kind of for 1600 DEG C of carbon material high-temperature resistivities test novel clamps, feature
It is, is symmetrically opened up along its length on the pedestal (1) there are two location hole (11) and several positioning holes (12), it is described
Location hole (11) is located at the right side of the pedestal (1)；The remotely located hole (11) of the positioning hole (12) is located at a left side for the pedestal (1)
Side.
It is 3. according to claim 2 a kind of for 1600 DEG C of carbon material high-temperature resistivities test novel clamps, feature
It is, the first baffle (21) and the second baffle (22) are fastened on respectively by bolt, nut fit system
At the location hole (11) and positioning hole (12).
It is 4. according to claim 1 a kind of for 1600 DEG C of carbon material high-temperature resistivities test novel clamps, feature
It is, the first baffle (21) includes with second baffle (22)：
Clamping section (211) is opened up fluted (2111) on the clamping section (211)；
Fixed part (212), the fixed part (212) are integrally formed with the clamping section (211) and set, and are located at the clamping section
(211) both ends, and circular hole (2121) is offered thereon.
It is 5. according to claim 4 a kind of for 1600 DEG C of carbon material high-temperature resistivities test novel clamps, feature
It is, further includes and hold out against component (6), the component (6) that holds out against is installed on the pedestal (1), is located at the first baffle
(21) right side, and it contradicts with the first baffle (21) and sets.
It is 6. according to claim 5 a kind of for 1600 DEG C of carbon material high-temperature resistivities test novel clamps, feature
It is, the component (6) that holds out against includes：
Mounting portion (61), the mounting portion (61) are fixedly installed on the right side of the pedestal (1), have symmetrically opened mounting hole thereon
(611), the mounting hole (611) is located at the fixed part (212)；
Top tight pieces (62), the top tight pieces (62) contradict with the first baffle (21) through the mounting hole (611) and set,
It makes play to clamp assembly (2).
It is 7. according to claim 6 a kind of for 1600 DEG C of carbon material high-temperature resistivities test novel clamps, feature
It is, the top tight pieces (62) are arranged to graphite screw rod.
It is 8. according to claim 4 a kind of for 1600 DEG C of carbon material high-temperature resistivities test novel clamps, feature
It is, measured hole (210) has been opened at the first baffle (21) and the middle part of second baffle (22), measured hole (210) position
At the groove (2111).
It is 9. according to claim 8 a kind of for 1600 DEG C of carbon material high-temperature resistivities test novel clamps, feature
It is, preset holes (31) is symmetrically offered on the sample (3).
It is 10. according to claim 9 a kind of for 1600 DEG C of carbon material high-temperature resistivities test novel clamps, feature
It is, metal lead wire (4), which is respectively interposed, to be arranged in the measured hole (210) and preset holes (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721563863.5U CN207457120U (en) | 2017-11-21 | 2017-11-21 | One kind tests novel clamp for 1600 DEG C of carbon material high-temperature resistivities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721563863.5U CN207457120U (en) | 2017-11-21 | 2017-11-21 | One kind tests novel clamp for 1600 DEG C of carbon material high-temperature resistivities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207457120U true CN207457120U (en) | 2018-06-05 |
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ID=62277530
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721563863.5U Active CN207457120U (en) | 2017-11-21 | 2017-11-21 | One kind tests novel clamp for 1600 DEG C of carbon material high-temperature resistivities |
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| CN (1) | CN207457120U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108627678A (en) * | 2018-06-27 | 2018-10-09 | 深圳供电局有限公司 | A kind of compound earthing material resistivity measurement fixture of graphite |
| CN113092861A (en) * | 2019-12-23 | 2021-07-09 | 中南大学 | Detection clamp and detection system |
| CN113092533A (en) * | 2019-12-23 | 2021-07-09 | 中南大学 | Measuring clamp and measuring 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 CN201721563863.5U patent/CN207457120U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108627678A (en) * | 2018-06-27 | 2018-10-09 | 深圳供电局有限公司 | A kind of compound earthing material resistivity measurement fixture of graphite |
| CN113092861A (en) * | 2019-12-23 | 2021-07-09 | 中南大学 | Detection clamp and detection system |
| CN113092533A (en) * | 2019-12-23 | 2021-07-09 | 中南大学 | Measuring clamp and measuring system |
| CN113092533B (en) * | 2019-12-23 | 2022-09-09 | 中南大学 | Measuring clamp and measuring 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 | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 313100 9 Zhonggang Avenue, Chicheng Town, Changxing County, Huzhou City, Zhejiang Province Patentee after: Sinosteel new materials Co.,Ltd. Address before: 313100 9 Zhonggang Avenue, Chicheng Town, Changxing County, Huzhou City, Zhejiang Province Patentee before: SINOSTEEL CORPORATION NEW MATERIAL (ZHEJIANG) Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| 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. |