CN216386638U - Lead-bismuth corrosion test fixture for small punch - Google Patents
Lead-bismuth corrosion test fixture for small punch Download PDFInfo
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- CN216386638U CN216386638U CN202122579034.9U CN202122579034U CN216386638U CN 216386638 U CN216386638 U CN 216386638U CN 202122579034 U CN202122579034 U CN 202122579034U CN 216386638 U CN216386638 U CN 216386638U
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- hole
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- small punch
- steel ball
- bed die
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- 238000012360 testing method Methods 0.000 title claims abstract description 47
- 238000005260 corrosion Methods 0.000 title claims abstract description 27
- 230000007797 corrosion Effects 0.000 title claims abstract description 27
- 229910052797 bismuth Inorganic materials 0.000 title claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 12
- 239000011261 inert gas Substances 0.000 claims description 11
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 10
- 239000007788 liquid Substances 0.000 abstract description 10
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of small punch tests, in particular to a small punch lead-bismuth corrosion test fixture which comprises an upper die, a lower die, a punch and a steel ball, wherein the upper die and the lower die are fixedly connected through a fastener, a sample is clamped between the upper die and the lower die, a through hole is formed in the center of the upper die, the steel ball is positioned in the through hole of the upper die, the punch is arranged above the steel ball, the sample is positioned below the steel ball, a containing groove is formed in the lower die and used for containing a corrosion solution, a penetrating liquid inlet hole is formed in the upper die and the lower die, and the liquid inlet hole is communicated with the containing groove. The mechanical property of the sample in a corrosive environment can be tested by the utility model, not only the mechanical property of the sample in a lead-bismuth corrosive environment can be tested, but also the mechanical property of the sample in other corrosive environments can be tested; the small punch rod testing machine can be directly installed on the existing small punch rod testing machine for testing, the existing small punch rod testing machine does not need to be changed, and the small punch rod testing machine is convenient and practical.
Description
Technical Field
The utility model relates to the technical field of small punch tests, in particular to a small punch lead-bismuth corrosion test fixture.
Background
The small punch test technology is a novel test method which has the characteristic of relatively 'lossless sampling' and can provide relatively accurate material performance, the test technology utilizes a punch to punch a tiny round thin sample with a certain load, and records the data of the load, the sample center displacement and the like in the whole process from deformation to final rupture of the sample, so that the mechanical properties of the material, such as creep property, yield strength, tensile strength, elongation after rupture, fracture crack and the like, can be solved, and the small punch test technology can represent the traditional uniaxial creep in the whole stage and can evaluate the creep property of a high-temperature structure in service. In addition, the small punch creep test technique can calculate the failure time of the specimen until fracture, compared with creep tests such as indentation, circular ring specimens, and the like, thereby predicting the creep life of the specimen.
The conventional small punch test is usually performed on a small punch testing machine, and sometimes the mechanical property of a material under a corrosive environment needs to be tested, but the existing small punch testing machine cannot perform the small punch test on a sample under the corrosive environment, that is, a test fixture of the existing small punch testing machine cannot be used for testing the mechanical property of the sample under the corrosive environment.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems in the prior art, the utility model aims to: the small punch lead bismuth corrosion test fixture can test the mechanical property of a sample in a corrosion environment, and particularly the mechanical property of the sample in the lead bismuth corrosion environment.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a little jumper bar lead bismuth corrosion test anchor clamps, including last mould, the bed die, jumper bar and steel ball, it passes through the fastener with the bed die to go up the mould and connects fixedly, the sample presss from both sides between last mould and bed die, the center department of going up the mould is equipped with the through-hole, the steel ball is arranged in the through-hole of last mould, the jumper bar sets up in the steel ball top, the sample is located the steel ball below, be equipped with the holding tank in the bed die, the holding tank is used for holding corrosive solution, corrosive solution can contact with the sample, be equipped with the feed liquor hole that runs through on last mould and the bed die, the feed liquor hole is linked together with the holding tank.
Further, the feed liquor hole symmetry of last mould sets up on the lateral wall of last mould, and the feed liquor hole of lower mould is corresponding with the feed liquor hole of last mould, and the feed liquor hole and the holding tank of lower mould are linked together.
Furthermore, a high-temperature sealing ring is clamped between the upper die and the lower die, a through hole is formed in the middle of the high-temperature sealing ring, and the sample is located in the through hole of the high-temperature sealing ring.
Furthermore, an inert gas inlet hole is also formed in the upper die and communicated with the through hole of the upper die.
Further, the fastening member is a fastening screw or a fastening bolt.
In summary, the present invention has the following advantages:
the mechanical property of the test sample in the corrosion environment can be tested through the utility model, and the mechanical property of the test sample in the lead-bismuth corrosion environment can be tested, and the mechanical property of the test sample in other corrosion environments can also be tested.
The utility model can be directly installed on the existing small punch testing machine for testing, does not need to change the existing small punch testing machine, and is convenient and practical.
Drawings
Fig. 1 is a top view of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
Fig. 3 is a sectional view taken along line B-B in fig. 1.
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 1 with an etching solution therein.
Wherein: 1 is the ram, 2 is the upper die, 3 is the bed die, 4 is the steel ball, 5 is the high temperature seal circle, 6 is fastening bolt, 7 is the inert gas inlet port, 8 is the etchant solution, 9 is the holding tank, 10 is the mould through-hole, 11 is the feed liquor hole, 12 is the sample.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and detailed description.
As shown in figures 1 to 4, a little jumper bar lead bismuth corrosion test anchor clamps, including last mould, the bed die, jumper bar and steel ball, it is fixed that last mould and bed die pass through the fastener connection, the sample presss from both sides between last mould and bed die, the center department of going up the mould is equipped with the through-hole, the steel ball is located the through-hole of last mould, the jumper bar sets up in the steel ball top, the sample is located the steel ball below, be equipped with the holding tank in the bed die, the holding tank is used for holding corrosive solution, corrosive solution can contact with the sample, in this embodiment, corrosive solution is lead bismuth corrosive solution, upward be equipped with the feed liquor hole that runs through on mould and the bed die, the feed liquor hole is linked together with the holding tank.
As shown in fig. 2 and 4, the liquid inlet holes of the upper mold are symmetrically arranged on the side wall of the upper mold, the liquid inlet holes of the lower mold correspond to the liquid inlet holes of the upper mold, and the liquid inlet holes of the lower mold are communicated with the accommodating groove. The lead-bismuth corrosion solution enters from the liquid inlet hole of the upper die, flows through the liquid inlet hole of the lower die and flows into the holding tank.
As shown in fig. 2 and 3, a high-temperature sealing ring is further sandwiched between the upper die and the lower die, a through hole is formed in the middle of the high-temperature sealing ring, and the sample is located in the through hole of the high-temperature sealing ring, that is, the high-temperature sealing ring is sleeved on the periphery of the sample, so that the sample can be clamped between the upper die and the lower die, a gap between the upper die and the lower die can be sealed, and a lead-bismuth corrosion solution is prevented from entering the upper die.
As shown in fig. 3, the upper mold is further provided with an inert gas inlet hole, and the inert gas inlet hole is communicated with the through hole of the upper mold. Inert gas is introduced from the inert gas inlet hole and enters the through hole of the upper die, so that the upper surface of the sample is filled with the inert gas, and the sample can be prevented from being oxidized at high temperature.
As shown in fig. 1 and 2, the fastening member is a fastening screw or a fastening bolt. In the present embodiment, the fastening members are fastening bolts, the number of the fastening bolts is four, and the upper mold and the lower mold are connected and fixed by the four fastening bolts.
When the device is used, the high-temperature sealing ring is firstly padded on the lower die, then the sample is placed in the through hole of the high-temperature sealing ring, the upper die is covered, and then the upper die and the lower die are connected and fixed through the fastening bolt to fix the sample; then introducing the prepared lead-bismuth corrosion solution into the liquid inlet hole of the upper die, wherein the lead-bismuth corrosion solution flows through the liquid inlet hole of the lower die and flows into the holding tank, and the lead-bismuth corrosion solution is contacted with the lower surface of the sample; then introducing inert gas from the inert gas inlet hole and entering the through hole of the upper die, so that the upper surface of the sample is filled with the inert gas to prevent the sample from being oxidized at high temperature; the steel ball is placed in the through hole of the upper die, a load is applied to the punch rod, the load is transferred to the steel ball by the punch rod, the load is transferred to the sample by the steel ball, and the mechanical property of the sample in the lead-bismuth corrosion environment is tested by adopting a small punch rod test.
In general, the mechanical property of the test sample in the corrosion environment can be tested by the utility model, and the mechanical property of the test sample in the lead-bismuth corrosion environment can be tested, and the mechanical property of the test sample in other corrosion environments can also be tested. The small punch rod testing machine can be directly installed on the existing small punch rod testing machine for testing, the existing small punch rod testing machine does not need to be changed, and the small punch rod testing machine is convenient and practical.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (5)
1. The utility model provides a little jumper bar lead bismuth corrosion test anchor clamps which characterized in that: including last mould, the bed die, jumper bar and steel ball, it is fixed that last mould and bed die pass through the fastener connection, the sample presss from both sides between last mould and bed die, the center department of going up the mould is equipped with the through-hole, the steel ball is arranged in the through-hole of last mould, the jumper bar sets up in the steel ball top, the sample is located the steel ball below, be equipped with the holding tank in the bed die, the holding tank is used for holding corrosive solution, corrosive solution can contact with the sample, upward be equipped with the feed liquor hole that runs through on mould and the bed die, the feed liquor hole is linked together with the holding tank.
2. The small punch lead bismuth corrosion test fixture of claim 1, characterized in that: the feed liquor hole symmetry of going up the mould sets up on the lateral wall of last mould, and the feed liquor hole of bed die is corresponding with the feed liquor hole of last mould, and the feed liquor hole and the holding tank of bed die are linked together.
3. The small punch lead bismuth corrosion test fixture of claim 1, characterized in that: go up still accompany the high temperature sealing washer between mould and the bed die, the middle part of high temperature sealing washer is equipped with the through-hole, and the sample is located the through-hole of high temperature sealing washer.
4. The small punch lead bismuth corrosion test fixture of claim 1, characterized in that: the upper die is also provided with an inert gas inlet hole which is communicated with the through hole of the upper die.
5. The small punch lead bismuth corrosion test fixture of claim 1, characterized in that: the fastener is a fastening screw or a fastening bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122579034.9U CN216386638U (en) | 2021-10-25 | 2021-10-25 | Lead-bismuth corrosion test fixture for small punch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122579034.9U CN216386638U (en) | 2021-10-25 | 2021-10-25 | Lead-bismuth corrosion test fixture for small punch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216386638U true CN216386638U (en) | 2022-04-26 |
Family
ID=81247881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122579034.9U Active CN216386638U (en) | 2021-10-25 | 2021-10-25 | Lead-bismuth corrosion test fixture for small punch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216386638U (en) |
-
2021
- 2021-10-25 CN CN202122579034.9U patent/CN216386638U/en active Active
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