CN202854016U - Clamp device for alternating-current (AC) resistivity test of non-metallic materials - Google Patents
Clamp device for alternating-current (AC) resistivity test of non-metallic materials Download PDFInfo
- Publication number
- CN202854016U CN202854016U CN 201220538786 CN201220538786U CN202854016U CN 202854016 U CN202854016 U CN 202854016U CN 201220538786 CN201220538786 CN 201220538786 CN 201220538786 U CN201220538786 U CN 201220538786U CN 202854016 U CN202854016 U CN 202854016U
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- plate
- insulation plate
- electrode plate
- electric pole
- connecting terminal
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- Expired - Lifetime
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- 238000012360 testing method Methods 0.000 title claims abstract description 20
- 239000007769 metal material Substances 0.000 title abstract 3
- 239000000463 material Substances 0.000 claims abstract description 23
- 238000009413 insulation Methods 0.000 claims description 31
- 239000004593 Epoxy Substances 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000003746 surface roughness Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000035515 penetration Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000013142 basic testing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model discloses a clamp device for an alternating-current (AC) resistivity test of non-metallic materials, belonging to the field of material penetration resistance testing technologies. The clamp device comprises an upper clamping plate, a lower clamping plate, four upright columns, four limiting blocks, a counterweight and a lifting handle, wherein the upper/lower clamping plate consists of an insulating plate, an electrode plate and a wiring terminal, wherein the electrode plate is located inside the insulating plate, one face of the electrode plate is exposed, and the wiring terminal is in contact with the electrode plate; the upper clamping plate is connected with the lower clamping plate through the four upright columns, the upper clamping plate can move along the vertical direction, and four linear bearings are respectively mounted in holes of four corners of the upper clamping plate; the four limiting blocks are respectively arranged at the top ends of the four upright columns; and the counterweight is arranged at the upper part of the upper clamping plate, and the lifting handle is fixed on the counterweight. According to the clamp device for the AC resistivity test of the non-metallic materials, disclosed by the utility model, the centering degree of the upper and lower clamping plates is high, the contact between a tested sample and the electrode plate is good, the sample is convenient to mount, the operation is simple, and both the test efficiency and the test accuracy are high.
Description
Technical field
The utility model belongs to material permeability resistance technical field of measurement and test, particularly a kind of nonmetallic materials AC resistance rate fixture for testing.
Background technology
The permeability resistance of nonmetallic materials has determined the complexity of external substance to the material internal migration, when external substance such as acid solution, aqueous slkali and the gas that contains soluble substance in the water behind the nonmetallic materials internal migration, can be at material internal owing to dissolving, crystallization, chemical reaction with the physics and chemistry reason such as electrolyte is provided, cause that material internal produces the phenomenons such as crystalline stress, component loss, swelling cracking and chemical corrosion, thereby cause that material property is deteriorated, permanance and service life reduce.
" based on the agent on crack resistance of concrete infiltration property measuring system of high-frequency alternating current " patent (application number: 201010559855.x) at Tsing-Hua University's Han Jianguo and Li Kefei, a kind of anchor clamps that are used for laying tested sample are proposed, these anchor clamps are comprised of the insulcrete of epoxy resin preparation and the electrode of red copper preparation, the basic test principle of agent on crack resistance of concrete infiltration property measuring system is the voltage signal with high-frequency ac, by the connection terminal on the anchor clamps, transfer on up and down two electrode plate in the anchor clamps, then by this two electrode plate, the voltage signal of high-frequency ac is transferred on the sample of clamping between two electrode plate, thereby consist of a loop, and the relation by the voltage and current in the loop, calculate the resistivity of institute's test sample, judge at last the permeability resistance of sample based on this resistivity.Although this patented claim has stated that the insulcrete in the anchor clamps prepares material therefor and electrode prepares material therefor, but these anchor clamps exist the centering degree of electric pole plate and lower electrode plate to guarantee in the process of using, and on the upper insulation plate without counterweight, cause in the test process the compaction of tested sample not enoughly, affect the accuracy of test result.
The utility model content
For addressing the above problem, the utility model proposes a kind of nonmetallic materials AC resistance rate fixture for testing.
Described clamp structure is as follows:
Upper insulation plate 12, electric pole plate 22 and upper connecting terminal 32 form train wheel bridge; In described train wheel bridge: electric pole plate 22 embeds in the upper insulation plate 12, and upper insulation plate 12 is with the upper surface sealing of electric pole plate 22, but most of lower surface of electric pole plate 22 exposes; Upper connecting terminal 32 is fixedly connected with electric pole plate 22 and keeps good contacting, and an end of upper connecting terminal 32 is exposed to the outside of upper insulation plate 12;
Lower insulation plate 11, lower electrode plate 21 and lower connecting terminal 31 form lower plate; In described lower plate: lower electrode plate 21 embeds in the lower insulation plate 11, and lower insulation plate 11 is with the lower surface sealing of lower electrode plate 21, but most of upper surface of lower electrode plate 21 exposes; Lower connecting terminal 31 is fixedly connected with lower electrode plate 21 and keeps good contacting, and an end of lower connecting terminal 31 is exposed to the outside of lower insulation plate 11;
Balancing weight 6 is positioned at the center position place, top of described upper insulation plate 12, and is fixed together with upper insulation plate 12; Handle 7 is positioned at the top of described balancing weight 6, and is fixed together with balancing weight 6;
Position at four angles of described lower insulation plate 11 respectively has a hole, all vertically is installed with a root post 4 in each hole; Position at four angles of described upper insulation plate 12 respectively has a through hole, all is installed with a linear bearing in each through hole; Four root posts pass respectively four linear bearings that are arranged in through hole train wheel bridge and lower plate are linked together; A limited block 5 is arranged on the top of every root post 4, be used for the stroke that the restriction train wheel bridge moves up; All keep insulation between described four root posts and electric pole plate 22, the lower electrode plate 21.
Described upper insulation plate 12 and lower insulation plate 11 sizes, shape are identical, all can adopt the epoxy glass fiber plate as manufactured materials, because the epoxy glass fiber plate has good dielectric properties, mechanical property and processability, have simultaneously heat-resisting, moisture resistance and decay resistance;
Described electric pole plate 22 and lower electrode plate 21 are identical, all can adopt red copper as manufactured materials, because red copper has the superior electrical conductivity energy;
Described column 4 can adopt the epoxy glass fiber plate as manufactured materials, requires the surface of column 4 smooth, and surface roughness parameter Ra is not more than 2.0 microns;
Described limited block 5, balancing weight 6 and handle 7 all can adopt stainless steel as manufactured materials, and the recommendation chemistry trade mark is the stainless steel of 06Cr19Ni10, on the market so-called 304 stainless steels; The quality requirements of balancing weight 6 is 2 kilograms, and acceptable deviation is ± 1 gram.
The beneficial effects of the utility model are:
Between train wheel bridge and lower plate, be provided with column, guaranteed the centering degree of train wheel bridge and lower plate; At train wheel bridge balancing weight is set, its compacting effect has guaranteed the good contact between tested sample and the battery lead plate, and when test is to the consistance of tested sample compaction; At balancing weight handle is set, has improved the convenience that sample is installed; Between four root posts and train wheel bridge, linear bearing is set, has guaranteed that train wheel bridge can move along column is smooth and easy, made things convenient for operation, improved testing efficiency.
Description of drawings
Fig. 1 is clamp structure synoptic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described further:
Embodiment 1:
The AC resistance rate that for example will test a block concrete sample:
At first, the upper connecting terminal 32 of nonmetallic materials AC resistance rate fixture for testing is connected with the corresponding signal line of AC resistance rate analyzer respectively with lower connecting terminal 31, then utilize handle 7 that train wheel bridge is mentioned, place the conductive layer of one deck softness at lower electrode plate 21 afterwards, its effect is so that tested sample fully contacts with battery lead plate towards the end face of battery lead plate, and good current lead-through is arranged; This soft conductive layer can be the sponge of an immersion saturated, and its thickness is generally 3-5mm;
Tested sample is placed on the conductive layer, on the end face of electric pole plate 22, place equally the conductive layer of one deck softness on the tested sample top, then train wheel bridge is slowly lowered, so that electric pole plate 22 and conductive layer contact, and utilize the compacting effect of balancing weight that conductive layer is compressed, guarantee electric pole plate 22 and lower electrode plate 21 all and keep good current lead-through between the tested sample;
Start corresponding test procedure, the AC resistance rate of test tested sample; After test is finished, handle 7 is mentioned, then take out tested sample; The signal wire that will be connected to again on upper connecting terminal 32 and the lower connecting terminal 31 disconnects, and anchor clamps is cleaned out and dried with clean rag.
Claims (5)
1. nonmetallic materials AC resistance rate fixture for testing is characterized in that described clamp structure is as follows:
Upper insulation plate (12), electric pole plate (22) and upper connecting terminal (32) form train wheel bridge; In described train wheel bridge: electric pole plate (22) embeds in the upper insulation plate (12), and upper insulation plate (12) is with the upper surface sealing of electric pole plate (22), but the major part of electric pole plate (22) lower surface exposes; Upper connecting terminal (32) is fixedly connected with electric pole plate (22) and keeps good contacting, and an end of upper connecting terminal (32) is exposed to the outside of upper insulation plate (12);
Lower insulation plate (11), lower electrode plate (21) and lower connecting terminal (31) form lower plate; In described lower plate: lower electrode plate (21) embeds in the lower insulation plate (11), and lower insulation plate (11) is with the lower surface sealing of lower electrode plate (21), but the major part of lower electrode plate (21) upper surface exposes; Lower connecting terminal (31) is fixedly connected with lower electrode plate (21) and keeps good contacting, and an end of lower connecting terminal (31) is exposed to the outside of lower insulation plate (11);
Balancing weight (6) is positioned at the center position place, top of described upper insulation plate (12), and and upper insulation plate (12) be fixed together; Handle (7) is positioned at the top of described balancing weight (6), and and balancing weight (6) be fixed together;
Position at four angles of described lower insulation plate (11) respectively has a hole, all vertically is installed with a root post (4) in each hole; Position at four angles of described upper insulation plate (12) respectively has a through hole, all is installed with a linear bearing in each through hole; Four root posts pass respectively four linear bearings that are arranged in through hole train wheel bridge and lower plate are linked together; On the top of every root post (4) limited block (5) is arranged; All keep insulation between described four root posts and electric pole plate (22), the lower electrode plate (21).
2. anchor clamps according to claim 1 is characterized in that, described upper insulation plate (12) is big or small with lower insulation plate (11), shape is identical, all adopts the epoxy glass fiber plate as manufactured materials.
3. anchor clamps according to claim 1 is characterized in that, described electric pole plate (22) and lower electrode plate (21) are identical, all adopt red copper as manufactured materials.
4. anchor clamps according to claim 1 is characterized in that, described column (4) adopts the epoxy glass fiber plate as manufactured materials, its smooth surface, and surface roughness parameter Ra is not more than 2.0 microns.
5. anchor clamps according to claim 1 is characterized in that, described limited block (5), balancing weight (6) and handle (7) all adopt stainless steel as manufactured materials; The quality of balancing weight (6) is 2 kilograms, and deviation is ± 1 gram.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220538786 CN202854016U (en) | 2012-10-19 | 2012-10-19 | Clamp device for alternating-current (AC) resistivity test of non-metallic materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220538786 CN202854016U (en) | 2012-10-19 | 2012-10-19 | Clamp device for alternating-current (AC) resistivity test of non-metallic materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202854016U true CN202854016U (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220538786 Expired - Lifetime CN202854016U (en) | 2012-10-19 | 2012-10-19 | Clamp device for alternating-current (AC) resistivity test of non-metallic materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202854016U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914493A (en) * | 2012-10-19 | 2013-02-06 | 清华大学 | Clamp for alternating current resistivity test of non-metallic material |
| CN104166049B (en) * | 2014-08-20 | 2016-08-17 | 太原理工大学 | A kind of soil resistivity test device of insulating materials |
| CN106610358A (en) * | 2017-01-21 | 2017-05-03 | 吉林大学 | Instrument and method for in-situ testing of material properties under force-electricity-heat-vertical magnetic field coupling condition |
| CN108627678A (en) * | 2018-06-27 | 2018-10-09 | 深圳供电局有限公司 | Graphite composite grounding material resistivity measuring clamp |
| CN109342509A (en) * | 2018-11-23 | 2019-02-15 | 海宁红狮宝盛科技有限公司 | Contact resistance test machine and its method |
-
2012
- 2012-10-19 CN CN 201220538786 patent/CN202854016U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914493A (en) * | 2012-10-19 | 2013-02-06 | 清华大学 | Clamp for alternating current resistivity test of non-metallic material |
| CN104166049B (en) * | 2014-08-20 | 2016-08-17 | 太原理工大学 | A kind of soil resistivity test device of insulating materials |
| CN106610358A (en) * | 2017-01-21 | 2017-05-03 | 吉林大学 | Instrument and method for in-situ testing of material properties under force-electricity-heat-vertical magnetic field coupling condition |
| CN108627678A (en) * | 2018-06-27 | 2018-10-09 | 深圳供电局有限公司 | Graphite composite grounding material resistivity measuring clamp |
| CN109342509A (en) * | 2018-11-23 | 2019-02-15 | 海宁红狮宝盛科技有限公司 | Contact resistance test machine and its method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |
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| CX01 | Expiry of patent term |