CN203241441U - Clamp of high-temperature resistivity measurement test - Google Patents
Clamp of high-temperature resistivity measurement test Download PDFInfo
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- CN203241441U CN203241441U CN 201320243419 CN201320243419U CN203241441U CN 203241441 U CN203241441 U CN 203241441U CN 201320243419 CN201320243419 CN 201320243419 CN 201320243419 U CN201320243419 U CN 201320243419U CN 203241441 U CN203241441 U CN 203241441U
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Abstract
The utility model discloses a clamp of a high-temperature resistivity measurement test. The clamp comprises a base, an upper base, conductive pins and a conductive plates. A rectangle through groove is disposed in the center of the base, each of the front and the back sidewalls of the through groove is provided with two opposite grooves; the sides of two conductive plates are in sliding fit with the grooves and the conductive plates are disposed at the bottom of the grooves; the upper base is in sliding fit with a rectangle at the center of the base and is provided with two perforations, and the conductive pins are inserted in the perforations in a manner of sliding fit from down to up; the conductive pins are arrow-shaped, and the arrow heads of the pins are abutted to the lower surface of the upper base; the front sidewall of the base is provided with a through hole, and a thermocouple is disposed inside the through hole; and a test sample is in sliding fit with the rectangle at the center of the base, and disposed in the through groove and on the two conductive plates, and the thermocouple inserted in the base is above the test sample. The clamp is used to measure resistivity of alloys in the high temperature or changing temperature to research performance of the alloys, so that efficiency and accuracy are improved, cost is reduced, and performance changing trend is shown more directly.
Description
Technical field
The utility model relates to a kind of resistivity experiment test apparatus of metal material, a kind of high temperature side resistivity anchor clamps particularly, and mainly for high temperature, the resistivity measurement during alternating temperature.
Background technology
At present resistivity measurement can reach very high levels of precision, so resistivity measurement has become a kind of important means of phase transformation (timeliness and the tempering etc.) problem of research metal material.Any lattice imperfection all can hinder the motion of electronics, makes their reflections or refraction, causes resistance to increase.The resistivity of heterogeneous alloy not only is decided by resistivity size and the relative quantity of each phase, and the resistivity of the physical dimension of phase and mutually characteristic distributions alloy also has certain influence.The factor of all obstruction free electrons motion all makes the resistivity of metal increase, as metal and alloy through quench or during solution treatment because second-phase dissolves in, and the resistivity of metal is increased, otherwise when tempering or Ageing Treatment, Second Phase Precipitation will make resistivity decreased.And the going deep into of at present material property research, resistivity Study also is a kind of important research means.
Resistance method of temperature measurement is a kind of very sensitive, method easily, can be used for composition, structure and the tissue of research material changes, it can be used for the research of many problems, such as: the ag(e)ing process of research alloy, measure the solubility curve of solid solution, the order disorder transition of research alloy, and the research martensite transfor mation etc.
Mainly be to measure for a normal temperature of the resistivity of metal material in traditional research, by different Technologies for Heating Processing or time change, survey the variation of its conductivity, such measurement needs a plurality of samples, not only workload is large, and when changing sample, wherein bring many errors such as size, therefore in a dynamic change studying sample resistance in the processes such as high-temperature heating or insulation, not only clamping is accurately convenient to utilize the utility model content anchor clamps, and reduces experimental error and workload.
The utility model purpose is the deficiency for prior art, and a kind of high temperature side resistivity anchor clamps are provided, and raises the efficiency with degree of accuracy and with dynamic form resistivity and temperature are connected.
In order to achieve the above object, design of the present utility model is: this experiment overcomes existing not enough condition, adopt traditional direct current four electrode method to survey measuring resistance, effectively tubular furnace and U.S.'s Keithley 2400 digital sourcemeters and 2182 nanovoltmeters are combined, by surveying the resistivity of metal material under high-temperature heat treatment, the problems such as some changes in microstructure of the metal material of analyzing and researching, compare with the normal temperature measurement, in the shortening cycle, save cost, and be a kind of novel method for expressing.
In order to reach above-mentioned goal of the invention, the utility model adopts following technical proposals:
1. a high temperature side resistance unit clamp comprises base, the seat of honour, conductive pin and conducting strip, it is characterized in that: described base 3 central authorities have a rectangle to wear groove, and wearing in this rectangle on the front and back sidewall of groove respectively has two relative grooves; Two described conducting strip 4 two ends and described groove cunning are joined and are shelved on respectively on the bottom land of groove, and conducting strip 4 is worn in the groove across the rectangle of base 3; Join with base 3 central rectangle cunnings at the described seat of honour 2, and two perforation are arranged on the seat of honour 2, slides from the bottom up in these two perforation and join the described conductive pin 1 of planting; Conductive pin 1 is arrow-shaped, and the convex shoulder on its arrow is resisted against on the lower surface at the seat of honour 2; A perforation 6 is arranged, the thermopair of planting in this perforation on the antetheca of base 3; Sample 5 and base 3 central rectangles are worn the groove cunning and are joined and be placed in this and wear in the groove and be shelved on two conducting strips 4, and the thermopairs in the inserted base 3 are in the top of sample 5.
The utility model has following substantive distinguishing features and has a few compared with prior art:
1. the high temperature side resistor clamp of the utility model design, solved present common resistance measurement can not pyrometry and the condition of alternating temperature under resistance, effectively tubular furnace and measuring resistance equipment are connected by anchor clamps simultaneously, be applicable to the measurement of the alloy conductivity under the high-temperature condition.
2. adopt high temperature resistance to measure transformation temperature, or the variation tendency of conductivity is compared with former normal temperature test in alloy aging (tempering) process, has improved greatly efficient, and has reduced sample, reduce simultaneously the size equal error that various sample is brought, improve the precision of measuring.
Description of drawings
This novel practical of Fig. 1 high temperature side resistivity Fixture assembly figure.
Fig. 2 is the vertical view of Fig. 1.
The inner sample hookup of this new type high temperature of Fig. 3 measuring resistance anchor clamps.
Embodiment
Preferred embodiment accompanying drawings of the present utility model is as follows:
Embodiment one:
Referring to Fig. 1 ~ Fig. 3, this high temperature side resistance comprises base 3, the seat of honour 2, conductive pin 1 and conducting strip 4, it is characterized in that: described base 3 central authorities have a rectangle to wear groove, and wearing in this rectangle on the front and back sidewall of groove respectively has two relative grooves; Two described conducting strip 4 two ends and described groove cunning are joined and are shelved on respectively on the bottom land of groove, are that conducting strip 4 is worn in the groove across the rectangle of base 3; Join with base 3 central rectangle cunnings at the described seat of honour 2, and two perforation are arranged on the seat of honour 2, slides from the bottom up in these two perforation and join the conductive pin of telling 1 of planting; Conductive pin 1 is arrow-shaped, and the convex shoulder on its arrow is resisted against on the lower surface at the seat of honour 2; A perforation 6 is arranged, the thermopair of planting in this perforation on the antetheca of base 3; Sample 5 and base 3 central rectangles are worn the groove cunning and are joined and be placed in this and wear in the groove and be shelved on two conducting strips 4, and the thermopairs in the inserted base 3 are in the top of sample 5.
Sample by Fig. 1 anchor clamps of packing into, the U.S. produces Keithley 2400 digital sourcemeters and is connected with conducting strip by wire, constant electric current is provided, and conductive pin is connected on 2182 nanovoltmeters with wire, survey is the voltage of this section sample under this electric current and temperature in the middle of conductive pin, and thermopair inserts from the hole of base, the actual temperature of monitoring sample, the data access terminal microcomputer of thermopair and voltage wherein can obtain the relation of voltage and temperature.Its conductive pin contacts as shown in Figure 2 with conducting strip and sample.In this anchor clamps situation, the sample preparation needs to press the 2x5x60mm preparation, and the length between the conductive pin is 34mm, according to formula resistance R=U/I, electricalresistivityρ=L/S*R=L/ (h*b) * R, two formula simultaneous electricalresistivityρ=U*L/ (h*b*I) therefore can set up resistivity variation with temperature relation.
This experiment can be set diamond heating speed and heating-up temperature according to Technology for Heating Processing, actual data measured by thermopair and the survey of 2182 nanovoltmeters, the impact of its Technology for Heating Processing alloy performance is judged in the variation of resistivity under can this Technology for Heating Processing after importing microcomputer into and derive processing by the variation of resistivity.Therefore can be according to Technology for Heating Processing such as the tempering of tubular furnace setting, timeliness etc., the variation of surveying resistivity in its heating process can also be surveyed its change in resistance when uniform temperature is incubated simultaneously.
The situation of change that adopts this high temperature side resistor clamp to survey metal material its conductivity under thermal treatment only needs a sample, need not change sample, reduced greatly and changed other errors such as size that sample brings, improved simultaneously efficient, and in a kind of new mode resistivity and temperature association have been got up.
The above implements to be illustrated to the utility model by reference to the accompanying drawings; but the utility model is not limited to above-mentioned; can also make multiple variation according to the purpose that utility model of the present utility model is created; all according to technical solutions of the utility model Spirit Essence and principle under make change, modification, substitute, combination, simplify; all should be the substitute mode of equivalence; as long as meet structure and aufbauprinciple for the utility model high-temperature conductivity test unit clamp, all belong to protection domain of the present utility model.
Claims (2)
1. high temperature side resistivity laboratory holder, comprise base (3), the seat of honour (2), conductive pin (1) and conducting strip (4), it is characterized in that: described base (3) central authorities have a rectangle to wear groove, and wearing in this rectangle on the front and back sidewall of groove respectively has two relative grooves; Two described conducting strip (4) two ends and described groove cunning are joined and are shelved on respectively on the bottom land of groove, and conducting strip (4) is worn in the groove across the rectangle of base (3); Join with the central rectangle cunning of base (3) at the described seat of honour (2), and two perforation are arranged on the seat of honour (2), slides from the bottom up in these two perforation and join the described conductive pin (1) of planting; Conductive pin (1) is arrow-shaped, and the convex shoulder on its arrow is resisted against on the lower surface of the seat of honour (2); A perforation (6) is arranged, the thermopair of planting in this perforation on the antetheca of base (3); Sample (5) and the central rectangle of base (3) are worn the groove cunning and are joined and be placed in this and wear in the groove and be shelved on two conducting strips (4), and the thermopair in the inserted base (3) is in the top of sample (5).
2. high temperature side resistivity test fixture according to claim 1 is characterized in that described conductive pin (1) contacts with sample (5) point with the arrow pinnacle, and described conducting strip (4) upper side edge is the edge of a knife and contacting with sample (5) line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320243419 CN203241441U (en) | 2013-05-07 | 2013-05-07 | Clamp of high-temperature resistivity measurement test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320243419 CN203241441U (en) | 2013-05-07 | 2013-05-07 | Clamp of high-temperature resistivity measurement test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203241441U true CN203241441U (en) | 2013-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320243419 Expired - Fee Related CN203241441U (en) | 2013-05-07 | 2013-05-07 | Clamp of high-temperature resistivity measurement test |
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| Country | Link |
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| CN (1) | CN203241441U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675454A (en) * | 2013-10-31 | 2014-03-26 | 成都金采科技有限公司 | Resistor testing apparatus |
| WO2016011664A1 (en) * | 2014-07-23 | 2016-01-28 | 上海硅酸盐研究所中试基地 | High-temperature test fixture |
| CN113092533A (en) * | 2019-12-23 | 2021-07-09 | 中南大学 | Measuring clamp and measuring system |
| CN113092861A (en) * | 2019-12-23 | 2021-07-09 | 中南大学 | Detection clamp and detection system |
-
2013
- 2013-05-07 CN CN 201320243419 patent/CN203241441U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675454A (en) * | 2013-10-31 | 2014-03-26 | 成都金采科技有限公司 | Resistor testing apparatus |
| CN103675454B (en) * | 2013-10-31 | 2015-12-30 | 成都金采科技有限公司 | Resistance testing device |
| WO2016011664A1 (en) * | 2014-07-23 | 2016-01-28 | 上海硅酸盐研究所中试基地 | High-temperature test fixture |
| CN104122448B (en) * | 2014-07-23 | 2017-04-12 | 上海硅酸盐研究所中试基地 | High-temperature test fixture |
| US10215798B2 (en) | 2014-07-23 | 2019-02-26 | R&D Center, Shanghai Institute Of Ceramics | High-temperature test fixture |
| CN113092533A (en) * | 2019-12-23 | 2021-07-09 | 中南大学 | Measuring clamp and measuring system |
| CN113092861A (en) * | 2019-12-23 | 2021-07-09 | 中南大学 | Detection clamp and detection system |
| CN113092533B (en) * | 2019-12-23 | 2022-09-09 | 中南大学 | Measuring clamp and measuring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20140507 |