CN211904911U - Metal material compression creep testing arrangement - Google Patents
Metal material compression creep testing arrangement Download PDFInfo
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- CN211904911U CN211904911U CN202020514484.2U CN202020514484U CN211904911U CN 211904911 U CN211904911 U CN 211904911U CN 202020514484 U CN202020514484 U CN 202020514484U CN 211904911 U CN211904911 U CN 211904911U
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- 229910001069 Ti alloy Inorganic materials 0.000 description 2
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Abstract
The utility model discloses a metal material compression creep testing arrangement belongs to metal material capability test technical field. The testing device comprises an upper clamp and a lower clamp, wherein the upper clamp comprises an upper plate I, a lower plate I, a stand column I and an upper stretching rod, and the lower clamp comprises an upper plate II, a lower plate II, a stand column II and a lower stretching rod; the boss is arranged on the upper surface of the lower base plate I, and a metal material sample is placed on the boss; the two grating ruler sensors are fixed on the lower base plate I through a position fixer; go up anchor clamps and lower anchor clamps each other become 90, when tensile creep test machine carries out the drawing, drive pull rod and lower link to relative motion from top to bottom for the inside compressive stress that produces of sample takes place compression creep deformation, and measures and the record in real time through grating chi sensor. The utility model discloses the current tensile creep testing machine of accessible realizes metal material compression creep property test, and the suitability is good, practices thrift the cost to reach the measurement accuracy the same with tensile creep.
Description
Technical Field
The utility model relates to a metallic material capability test technical field, concretely relates to metallic material compression creep testing arrangement is applicable to metallic material creep test and test under compressive stress.
Background
Creep refers to the phenomenon that a material slowly generates plastic deformation under the action of constant temperature and load for a long time. The creep property of the material directly influences the service life of the material, so that the research on the creep property of the material, namely the research on the change rule of the deformation of the material along with temperature, stress and time, has important significance on the application of the material.
The high-temperature alloy, titanium alloy and other metal materials are indispensable key structural materials for aerospace, energy chemical industry, national defense weaponry and national economic construction, and structural components made of the high-temperature alloy, titanium alloy and other metal materials are mainly deformed by compression creep due to long-time service in a high-temperature and compressive stress state. In recent years, with the development of national nuclear industry and deep sea exploration engineering, the performance requirements of materials are more strict, and one key test is to measure the compression creep performance of metal materials. However, the compression creep behavior of metal materials is rarely studied, mainly because there is no special compression creep testing machine and related standards. Under the existing test conditions, the creep testing machine in a lever weight loading mode or an electronic loading mode can only realize the axial tensile creep performance test. Therefore, the compression creep test only needs to be performed by a common universal testing machine, the measurement of the deformation amount is difficult to meet the research requirement, and particularly the long-time creep deformation is difficult to measure.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned weak point that exists among the prior art, the utility model provides a metal material compression creep testing arrangement, the utility model discloses a testing arrangement and the current tensile creep testing machine of method accessible realize metal material compression creep capability test, and the suitability is good, practices thrift the cost, can be suitable for various creep testing machines in a flexible way to can reach the measurement accuracy the same with tensile creep, realize the research of metal material compression creep characteristic, provide basic data for the metal material uses.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a metal material compression creep testing device is characterized in that: this testing arrangement includes anchor clamps, lower anchor clamps, boss and grating chi sensor, wherein:
and (4) clamping: comprises an upper plate I, a lower plate I, a stand column I and an upper stretching rod; the upper plate I and the lower plate I are arranged in parallel, the number of the stand columns I is two, and the stand columns I are vertically arranged between the upper plate I and the lower plate I and fixedly connect the upper plate I and the lower plate I together; the upper stretching rod is arranged above the upper plate I and is vertically fixed at the central position of the upper plate I;
a lower clamp: including upper plate II, lower plate II, stand II and lower stretching rod, wherein: the upper plate II and the lower plate II are arranged in parallel, the number of the stand columns II is two, and the stand columns II are vertically arranged between the upper plate II and the lower plate II and fixedly connect the upper plate II and the lower plate II together; the lower stretching rod is arranged below the upper plate II and is vertically fixed at the center of the upper plate II;
a boss: the boss is arranged at the center of the upper surface of the lower base plate I and used for placing a metal material sample to be tested;
a grating ruler sensor: the two grating ruler sensors are respectively fixed at two separated ends of two side surfaces of the lower base plate I through fixing pieces; the grating ruler sensors are adjusted through two position adjusters, and the two position adjusters are fixed at two separated ends of two side faces of the upper plate II through fixing parts respectively.
The upper clamp and the lower clamp mutually form an angle of 90 degrees and are mutually penetrated and arranged, and the concrete meaning is that: the upper plate I is vertical to the upper plate II, and the upper plate II vertically penetrates through a rectangular plane space defined by the upper plate I, the lower plate I and the two stand columns I; and the upper plate II is positioned below the lower base plate I.
And the free ends of the upper pull rod and the lower pull rod are both provided with threads for connecting a tensile creep testing machine.
Two ends of the upright post I are provided with thread structures, and are fixed on the upper plate I and the lower plate I through nuts after respectively penetrating through the upper plate I and the lower plate I;
and two ends of the stand column II are provided with thread structures, and after the two ends of the stand column II penetrate through the upper plate II and the lower plate II respectively, the two ends of the stand column II are fixed on the upper plate II and the lower plate II through nuts.
The boss is located between lower plate I and lower plate II.
When the tensile creep testing machine with the upper pull rod connected with the lower pull rod performs a tensile action, the upper pull rod and the lower pull rod are driven to move up and down relatively, so that a sample placed between the lower base plate I and the lower base plate II is applied with compressive stress.
The position regulator comprises a round rod and a round plate which are of an integrated structure, and the round rod is perpendicular to the center of the round plate; the upper end of the grating ruler sensor is contacted with the bottom surface of the wafer of the position regulator.
The fixing piece is fixed on the lower base plate I or the upper plate II through bolts, and the position regulator or the grating ruler sensor is clamped and fixed by the fixing piece after being adjusted to a proper position.
The testing device is used for testing the compression creep of the metal material, and comprises the following steps:
(1) respectively connecting the upper pull rod and the lower pull rod to a tensile creep testing machine;
(2) the tensile creep testing machine applies tensile stress to the upper pull rod and the lower pull rod, so that the lower base plate I of the upper clamp and the lower base plate II of the lower clamp generate relative motion, and the inside of a sample arranged on the boss generates compressive stress, thereby generating compressive creep deformation;
(3) and the generated compression creep deformation is measured in real time through a grating ruler sensor and recorded in real time.
The utility model has the advantages and beneficial effects that:
1. the utility model discloses an anchor clamps can carry out the compression creep test on the tensile creep testing machine commonly used, and the examination and the measurement requirement of experimental needs can be done according to the relevant standard requirement of tensile creep completely, and the measuring accuracy reaches relevant standard requirement completely, has solved not special compression creep testing machine and relevant standard problem betterly.
2. The utility model discloses utilize tensile creep testing machine to carry out the experimental device of compressive creep, when last lower link is connected to tensile creep testing machine respectively on, tensile creep testing machine exerts tensile stress after, 2 lower plates of upper and lower anchor clamps produce relative motion to opposite direction for the inside compressive stress that produces of sample of dress on the sample boss, thereby take place compressive creep deformation.
3. The utility model discloses utilize tensile creep testing machine to carry out the experimental device of compression creep, the compression creep deformation that takes place passes through grating chi sensor real-time measurement and real-time recording.
4. The utility model discloses utilize current tensile creep testing machine to carry out the device of metal material compression creep performance test, the suitability is good, practices thrift the cost, can be suitable for various creep testing machines in a flexible way to can reach the measurement accuracy that tensile creep is the same, realize the research of metal material compression creep characteristic, provide basic data for the metal material application.
Drawings
FIG. 1 is the overall structure diagram of the device for testing the compressive creep property of a metal material according to the present invention.
Fig. 2 is the structural schematic diagram of the upper clamp in the device for testing the compressive creep property of the metal material.
FIG. 3 is a schematic view of the lower clamp structure in the metal material compressive creep property testing apparatus of the present invention.
Wherein: 1-upper stretching rod, 2-upper plate I, 3-upright post I, 4-fixing piece, 5-grating ruler sensor, 6-lower base plate I, 7-lower base plate II, 8-position regulator, 9-upright post II, 10-upper plate II, 11-lower stretching rod and 12-boss.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in FIGS. 1-3, the utility model discloses a can utilize current tensile creep testing machine to carry out the experimental device of compressive creep, the device on common tensile creep testing machine's basis, has designed and processed one set of axial tensile stress and has changed into reverse frock clamp and the deformation measuring device of axial compressive stress, adopts the grating to measure deformation, and resolution 1 mu m warp.
The utility model discloses testing arrangement includes anchor clamps, lower anchor clamps, boss 12 and grating chi sensor 5, and each part structure and relation of connection are as follows:
the upper clamp comprises an upper plate I2, a lower plate I, a stand column I3 and an upper stretching rod 1; the upper plate I and the lower plate I are arranged in parallel, the number of the stand columns I is two, and the stand columns I are vertically arranged between the upper plate I and the lower plate I and fixedly connect the upper plate I and the lower plate I together; the upper stretching rod 1 is arranged above the upper plate I and is vertically fixed at the central position of the upper plate I; the two ends of the stand column I are provided with thread structures, the two ends of the stand column I penetrate through the upper plate I and the lower plate I respectively, and then the two ends of the stand column I are fixed on the upper plate I and the lower plate I through nuts. And the free end of the upper stretching rod 1 is provided with threads for connecting a connecting rod of a tensile creep testing machine.
The lower fixture comprises an upper plate II 10, a lower plate II 7, a stand column II 9 and a lower stretching rod 11, wherein: the upper plate II and the lower plate II are arranged in parallel, the number of the stand columns II is two, and the stand columns II are vertically arranged between the upper plate II and the lower plate II and fixedly connect the upper plate II and the lower plate II together; and the lower extension rod is arranged below the upper plate II and is vertically fixed at the center of the upper plate II. And two ends of the stand column II are provided with thread structures, and after the two ends of the stand column II penetrate through the upper plate II and the lower plate II respectively, the two ends of the stand column II are fixed on the upper plate II and the lower plate II through nuts. And the free end of the lower pull rod is provided with threads for connecting a connecting rod of the tensile creep testing machine.
The upper clamp and the lower clamp are 90 degrees and are mutually penetrated and arranged, and the upper clamp and the lower clamp are specifically as follows: the upper plate I is vertical to the upper plate II, and the upper plate II vertically penetrates through a rectangular plane space defined by the upper plate I, the lower plate I and the two stand columns I; and the upper plate II is positioned below the lower base plate I.
The boss 12 is arranged at the center of the upper surface of the lower base plate I6, and the boss 12 is used for placing a metal material sample to be tested; the boss is located between lower plate I6 and lower plate II 7, works as when the tensile creep testing machine that upper tie 1 and lower link 11 are connected carries out the tensile action, drives upper tie and lower link and to the up-and-down motion to apply compressive stress to the sample of placing on the boss between lower plate I and lower plate II.
The two grating ruler sensors 5 are respectively fixed at two separated ends of two side surfaces of the lower base plate I6 through fixing pieces 4; the grating ruler sensors 5 are adjusted through position adjusters 8, the number of the position adjusters 8 is two, and the two position adjusters 8 are fixed at two separated ends of two side surfaces of the upper plate II 10 through fixing pieces 4 respectively.
The position regulator 8 comprises a round rod and a round plate (the longitudinal section is in an inverted T shape) which are of an integral structure, and the round rod is vertical to the center of the round plate; the fixing piece 4 is fixed on the lower bottom plate I or the upper plate II through bolts; and adjusting the position regulator and the grating ruler sensor to proper positions, clamping and fixing the position regulator and the grating ruler sensor by using a fixing part, and abutting the upper end of the grating ruler sensor against the bottom surface of a wafer of the position regulator after fixing.
The fixing part 4 comprises two clamping parts, bolt holes are formed in the free ends of the two clamping parts, and the two clamping parts are locked by bolts after the grating ruler sensor or the position regulator is clamped and regulated to a proper position.
The metal material compression creep testing method by using the testing device comprises the following steps:
(1) respectively connecting the upper pull rod and the lower pull rod to a tensile creep testing machine, and adjusting the position of the grating ruler sensor or the position adjuster to enable the upper end of the grating ruler sensor to be abutted against the bottom end of the position adjuster;
(2) the tensile creep testing machine applies tensile stress to the upper pull rod and the lower pull rod, so that the lower base plate I of the upper clamp and the lower base plate II of the lower clamp generate relative motion, and the inside of a sample arranged on the boss generates compressive stress, thereby generating compressive creep deformation;
(3) and the generated compression creep deformation is measured in real time through a grating ruler sensor and recorded in real time.
The utility model discloses utilize present tensile creep testing machine to carry out metal material compression creep property test's method and device, the suitability is good, practices thrift the cost, can be suitable for various creep testing machines in a flexible way to can reach the measurement accuracy that tensile creep is the same, realize the research of metal material compression creep characteristic, provide basic data for the metal material uses.
Claims (8)
1. A metal material compression creep testing device is characterized in that: this testing arrangement includes anchor clamps, lower anchor clamps, boss and grating chi sensor, wherein:
and (4) clamping: comprises an upper plate I, a lower plate I, a stand column I and an upper stretching rod; the upper plate I and the lower plate I are arranged in parallel, the number of the stand columns I is two, and the stand columns I are vertically arranged between the upper plate I and the lower plate I and fixedly connect the upper plate I and the lower plate I together; the upper stretching rod is arranged above the upper plate I and is vertically fixed at the central position of the upper plate I;
a lower clamp: including upper plate II, lower plate II, stand II and lower stretching rod, wherein: the upper plate II and the lower plate II are arranged in parallel, the number of the stand columns II is two, and the stand columns II are vertically arranged between the upper plate II and the lower plate II and fixedly connect the upper plate II and the lower plate II together; the lower stretching rod is arranged below the upper plate II and is vertically fixed at the center of the upper plate II;
a boss: the boss is arranged at the center of the upper surface of the lower base plate I and used for placing a metal material sample to be tested;
a grating ruler sensor: the two grating ruler sensors are respectively fixed at two separated ends of two side surfaces of the lower base plate I through fixing pieces; the grating ruler sensors are adjusted through two position adjusters, and the two position adjusters are fixed at two separated ends of two side faces of the upper plate II through fixing parts respectively.
2. The metallic material compressive creep testing apparatus according to claim 1, wherein: the upper clamp and the lower clamp mutually form an angle of 90 degrees and are mutually penetrated and arranged, and the concrete meaning is that: the upper plate I is vertical to the upper plate II, and the upper plate II vertically penetrates through a rectangular plane space defined by the upper plate I, the lower plate I and the two stand columns I; and the upper plate II is positioned below the lower base plate I.
3. The metallic material compressive creep testing apparatus according to claim 1, wherein: and the free ends of the upper stretching rod and the lower stretching rod are provided with threads for connecting a tensile creep testing machine.
4. The metallic material compressive creep testing apparatus according to claim 1, wherein: two ends of the upright post I are provided with thread structures, and are fixed on the upper plate I and the lower plate I through nuts after respectively penetrating through the upper plate I and the lower plate I;
and two ends of the stand column II are provided with thread structures, and after the two ends of the stand column II penetrate through the upper plate II and the lower plate II respectively, the two ends of the stand column II are fixed on the upper plate II and the lower plate II through nuts.
5. The metallic material compressive creep testing apparatus according to claim 1, wherein: the boss is located between lower plate I and lower plate II.
6. The metallic material compressive creep testing apparatus according to claim 5, wherein: when the tensile creep testing machine connected with the upper stretching rod and the lower stretching rod performs stretching action, the upper stretching rod and the lower stretching rod are driven to move up and down relatively, and therefore compressive stress is applied to a sample placed between the lower bottom plate I and the lower bottom plate II.
7. The metallic material compressive creep testing apparatus according to claim 1, wherein: the position regulator comprises a round rod and a round plate which are of an integrated structure, and the round rod is perpendicular to the center of the round plate; the upper end of the grating ruler sensor is contacted with the bottom surface of the wafer of the position regulator.
8. The metallic material compressive creep testing apparatus according to claim 7, wherein: the fixing piece is fixed on the lower base plate I or the upper plate II through bolts, and the position regulator or the grating ruler sensor is clamped and fixed by the fixing piece after being adjusted to a proper position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020514484.2U CN211904911U (en) | 2020-04-10 | 2020-04-10 | Metal material compression creep testing arrangement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020514484.2U CN211904911U (en) | 2020-04-10 | 2020-04-10 | Metal material compression creep testing arrangement |
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| Publication Number | Publication Date |
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| CN211904911U true CN211904911U (en) | 2020-11-10 |
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| CN202020514484.2U Active CN211904911U (en) | 2020-04-10 | 2020-04-10 | Metal material compression creep testing arrangement |
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