CN110308058A - A kind of heat preservation tooling in low-temperature impact test slot - Google Patents
A kind of heat preservation tooling in low-temperature impact test slot Download PDFInfo
- Publication number
- CN110308058A CN110308058A CN201910744621.3A CN201910744621A CN110308058A CN 110308058 A CN110308058 A CN 110308058A CN 201910744621 A CN201910744621 A CN 201910744621A CN 110308058 A CN110308058 A CN 110308058A
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- sample
- groove
- impact test
- heat preservation
- tool
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- Pending
Links
- 238000009863 impact test Methods 0.000 title claims abstract description 27
- 238000004321 preservation Methods 0.000 title claims abstract description 25
- 238000012546 transfer Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 210000000080 chela (arthropods) Anatomy 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/42—Low-temperature sample treatment, e.g. cryofixation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses the heat preservation toolings in a kind of low-temperature impact test slot, and it includes the pallet grid that several are stacked, every layer of pallet grid is equipped with several grooves for being used to be put into sample；Wherein, the bottom surface of the groove is tilted from the first side of the groove to second side, and the first side and the second side are oppositely arranged, and the bottom of the second side is lower than the bottom of the first side；There is the first gap between the sample being put into and the first side；The second side is equipped with recessed portion, makes have the second gap between the sample being put into and the second side；Under use state, when sample is put into the groove, sample can slide to the second side of the groove；When sample is shifted, transfer device can extend into first gap and second gap picks up sample.Heat preservation tooling of the invention can be positioned quick and precisely, and not will lead to the mutual touching of sample.
Description
Technical Field
The invention relates to the technical field of metal detection equipment, in particular to a heat preservation tool in a low-temperature groove for an impact test.
Background
The charpy impact test is a test for determining notch sensitivity (toughness) of a metal material. Preparing a metal sample with a certain shape and size, enabling the metal sample to have a U-shaped notch or a V-shaped notch, enabling the metal sample to be in a simply supported beam state on a Charpy impact testing machine, enabling the sample to be broken along the notch by using a pendulum lifted by the testing machine for one-time impact, and calculating the absorption work of the sample by using the height difference of the pendulum lifted again when the sample is broken. The large work absorption value (joule) indicates that the material has good toughness and is not sensitive to gaps in the structure or other stress concentration conditions.
The Charpy impact test can be carried out at different temperatures, the charpy impact test is more commonly carried out by cooling by using a liquid medium, and the requirements in the related national standard GB/T229 are as follows: when the liquid medium is used to cool the sample, the sample is placed on a grid in a container, the grid being at least 25mm above the bottom of the container, the liquid being at least 25mm above the sample, the sample being at least 10mm from the side walls of the container, and the sample being held at a sufficient distance from the interior surface of the cryogenic device and from the sample to the sample.
The current used grid can separate the samples when being placed, but in the heat preservation process, the liquid medium in the low-temperature tank needs to be stirred to ensure that the temperature is uniform, so that the impact samples are often moved on the grid and touch with each other, and the standard requirements cannot be met. The conventional method is that a certain space is reserved in a low-temperature tank as far as possible, the number of samples to be placed is reduced, the test efficiency is reduced, and the samples cannot be guaranteed not to touch each other.
Disclosure of Invention
The invention aims to provide a convenient, efficient and reasonable heat preservation tool for sample heat preservation, the heat preservation process meets the standard requirement, the positioning can be quickly and accurately carried out in the clamping process, and the samples cannot touch each other.
In order to achieve the purpose, the invention provides a heat preservation tool in a low-temperature groove for an impact test, which comprises a plurality of tray grids arranged in a stacked mode, wherein a plurality of grooves for placing samples are formed in each layer of tray grid; the bottom surface of the groove inclines from the first side surface of the groove to the second side surface, the first side surface and the second side surface are oppositely arranged, and the bottom of the second side surface is lower than that of the first side surface; a first gap is formed between the put sample and the first side surface; the second side surface is provided with a concave part, so that a second gap is formed between the put sample and the second side surface; in a use state, when a sample is placed in the groove, the sample can slide to the second side surface of the groove; when the sample is transferred, the transfer device can extend into the first gap and the second gap to clamp the sample.
Preferably, the bottom surface of the groove and the horizontal plane form an included angle of 8-15 degrees.
Preferably, the depth of the groove is 5-8 mm.
Preferably, the horizontal section of the groove is in a convex shape.
Preferably, the distance between the groove and the edge of the tray grid is more than 25 mm.
Preferably, the heat preservation tool further comprises: and the bracket is arranged at the bottom of the tray mesh grid and used for supporting the tray mesh grid.
Preferably, the height of the bracket is not less than 30 mm.
Preferably, the heat preservation tool further comprises: and the tray grid is arranged in the container.
Preferably, the distance between the groove and the bottom of the container is more than 25 mm.
Preferably, in the tray grids stacked, the distance between adjacent tray grids is 25-40 mm.
Has the advantages that:
(1) the invention can avoid the situation that the samples move on the tray grids and touch each other and can not meet the standard requirement due to the vibration and the stirring of the low-temperature tank in the sample heat preservation process.
(2) When using special low temperature pincers to press from both sides to get, because the existence of recess bottom slope and depressed part, location that can be more accurate quick has avoided crossing the muddy and the field of vision that produces because of alcohol or other cooling liquid temperature are poor to cause the condition emergence of the inaccurate and repeated adjustment of centre gripping.
(3) The shape of recess is protruding style of calligraphy, avoids the sample to paste on the tray net bars or laminate each other, and the phenomenon that leads to unable centre gripping takes place, and the sample is got to accurate quick location clamp of can being convenient for.
Drawings
FIG. 1 is a top view of the heat retention fixture in an impact test cold box of the present invention.
FIG. 2 is a front view of the heat preservation tooling in the impact test cryogenic tank of the present invention.
FIG. 3 is a left side view of the heat retention tooling in the impact test cold box of the present invention.
FIG. 4 is a top view of a groove in the incubation tool of example 1.
Detailed Description
The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
As shown in fig. 1 to 3, the heat preservation tool in the impact test cryogenic tank of the invention comprises a plurality of tray grids 1 which are stacked, and a plurality of grooves 2 for placing samples are arranged on each layer of tray grid 1. The bottom surface of the groove 2 inclines from a first side surface to a second side surface of the groove 2, the first side surface and the second side surface are oppositely arranged, and the bottom of the second side surface is lower than that of the first side surface; a first gap is formed between the put sample and the first side surface; the second side surface is provided with a concave part 21, so that a second gap is formed between the put sample and the second side surface. In a use state, when a sample is placed in the groove 2, the sample can slide to the second side surface of the groove 2; when the sample is transferred, the transfer device can extend into the first gap and the second gap to clamp the sample.
The heat preservation tool is suitable for charpy pendulum impact tests, and the specific test method refers to the national standard. Reference is now made to the national standard GB/T229. The length of the standard size impact test sample is 55mm, the cross section is a square section of 10mm x 10mm, and a V-shaped or U-shaped notch is arranged in the middle of the length of the test sample. The transfer device may employ the clamp of GB/T229-2007 to remove the sample from the medium and place it on the tester.
The tray grid 1 and the grooves 2 are arranged as baskets with holes. The depth of the groove is 5-8 mm.
The bottom surface of the groove 2 and the horizontal plane form an included angle of 8-15 degrees. Because the bottom surface of the groove 2 is inclined, the sample can slide to the inclined direction under the action of gravity after the sample is placed. In fig. 1 and 2, the sample slides from the left to the right in the groove 2. The inclined bottom surface of the groove 2 facilitates rapid positioning of the sample during transfer of the sample, since the sample is applied to the second side surface (the surface provided with the recess 21) of the groove 2, and the position thereof is relatively fixed. When placing the sample, make the no breach face of sample lean on recess 2 second side, the breach face is outwards, is convenient for strike the accurate centre gripping of special fixture.
In some embodiments, the groove 2 has a horizontal cross section in the shape of a "convex". The groove 2 can avoid the sample from being pasted on the tray grid 1 or being mutually pasted, so that the phenomenon of incapability of clamping can be caused, and the sample can be conveniently and accurately clamped by the positioning clamp. The specific shape of the "embossed" groove 2 can be seen in fig. 1. The "male" groove 2 is a rectangular groove plus a depression 21. The sample is rectangular and therefore the cross section of the body of the recess 2 is rectangular. The transfer device cannot extend into the recess 2 because the sample requires the transfer device to move out of the recess 2 during transfer and the sample is stuck on the second side of the recess 2. A recess 21 is thus provided on the second side of the groove 2 for the insertion of the transfer device.
When using special low temperature pincers to press from both sides to get, because the slope of 2 bottoms of recess and the existence of depressed part 21, location that can be more accurate quick has avoided crossing the muddy and the poor field of vision that produces because of alcohol or other cooling liquid temperature to cause the condition emergence of the inaccurate and repeated adjustment of centre gripping.
In order to meet the standard, the distance between the groove 2 and the edge of the tray grid 1 is more than 25 mm.
The bottom of the tray mesh grid 1 is provided with four brackets 11 for supporting the tray mesh grid 1, so that the tray mesh grid 1 can be stably placed. The height of the bracket 11 is not less than 30 mm. If a plurality of layers of tray grids 1 are arranged, a support 11 is also arranged below each layer of tray grids 1, and the distance between every two adjacent tray grids 1 is 25-40 mm.
The heat preservation frock still contain: a container (not shown) containing a liquid medium, said tray grid 1 being placed in the container. The distance between the groove 2 and the bottom of the container is more than 25 mm.
Example 1
A heat preservation tool in a low-temperature groove for an impact test is provided with a tray grid, and a plurality of grooves for placing samples are formed in the tray grid. The depth of the groove is 5-8 mm. The top view of the groove is shown in fig. 4 and is in a shape of a "convex". The main body of the groove is rectangular, the length of the main body is 70-80 mm, and the width of the main body is 20-30 mm. The second side surface (the upper side in figure 4) of the groove is provided with a concave part, the concave part is recessed by 5-10 mm, and the width of the concave part is 20-30 mm. The bottom of the groove slopes downward toward the second side.
In conclusion, the heat preservation tool in the impact test low-temperature tank is convenient, efficient and reasonable to use, meets the standard requirement in the heat preservation process, can be quickly and accurately positioned in the clamping process, and cannot cause mutual contact of samples.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (10)
1. A heat preservation tool in a low-temperature groove for an impact test is characterized by comprising a plurality of tray grids which are arranged in a stacked mode, wherein a plurality of grooves for placing samples are formed in each layer of tray grid; wherein,
the bottom surface of the groove inclines from the first side surface of the groove to the second side surface, the first side surface and the second side surface are oppositely arranged, and the bottom of the second side surface is lower than the bottom of the first side surface; a first gap is formed between the put sample and the first side surface; the second side surface is provided with a concave part, so that a second gap is formed between the put sample and the second side surface;
in a use state, when a sample is placed in the groove, the sample can slide to the second side surface of the groove; when the sample is transferred, the transfer device can extend into the first gap and the second gap to clamp the sample.
2. The heat preservation tool in the impact test low-temperature tank is characterized in that the bottom surface of the groove and the horizontal surface form an included angle of 8-15 degrees.
3. The heat preservation tool in the impact test cryogenic tank of claim 1, wherein the depth of the groove is 5-8 mm.
4. The tool for preserving heat in the impact test cryogenic tank according to claim 1, wherein the horizontal section of the groove is in a shape of a convex.
5. The tool for heat preservation in the impact test cryogenic tank of claim 1, wherein the distance between the groove and the edge of the tray grid is greater than 25 mm.
6. The tool for preserving heat in the impact test cryogenic tank according to claim 1, further comprising: and the bracket is arranged at the bottom of the tray mesh grid and used for supporting the tray mesh grid.
7. The tool for preserving heat in the impact test cryogenic tank as claimed in claim 6, wherein the height of the bracket is not less than 30 mm.
8. The tool for preserving heat in the impact test cryogenic tank according to claim 1, further comprising: and the tray grid is arranged in the container.
9. The tool for keeping the temperature in the impact test cryogenic tank according to claim 8, wherein the distance between the groove and the bottom of the container is greater than 25 mm.
10. The heat preservation tool in the impact test cryogenic tank of claim 1, wherein the distance between adjacent tray grids in the stacked tray grids is 25-40 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910744621.3A CN110308058A (en) | 2019-08-13 | 2019-08-13 | A kind of heat preservation tooling in low-temperature impact test slot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910744621.3A CN110308058A (en) | 2019-08-13 | 2019-08-13 | A kind of heat preservation tooling in low-temperature impact test slot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110308058A true CN110308058A (en) | 2019-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910744621.3A Pending CN110308058A (en) | 2019-08-13 | 2019-08-13 | A kind of heat preservation tooling in low-temperature impact test slot |
Country Status (1)
| Country | Link |
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| CN (1) | CN110308058A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466023A (en) * | 2021-06-30 | 2021-10-01 | 广船国际有限公司 | Sample storage tank device for low-temperature impact test |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006030144A (en) * | 2004-07-21 | 2006-02-02 | Kajikkusu Trading:Kk | Sample tube heat-insulating tray and heat insulating box for multi-well plate |
| KR20100005631U (en) * | 2008-11-25 | 2010-06-04 | 양성원 | Preservation container for feed sample |
| KR20110104223A (en) * | 2010-03-16 | 2011-09-22 | 김재봉 | Gap structure of usim chip for mobile communication terminal test |
| CN202735157U (en) * | 2012-07-30 | 2013-02-13 | 武汉钢铁(集团)公司 | Adjustable sample heat preservation holder used for steel plate drop-weight test |
| CN203241290U (en) * | 2013-05-16 | 2013-10-16 | 武汉钢铁(集团)公司 | Support for cooling drop weight tear test sample |
| CN205906396U (en) * | 2016-07-11 | 2017-01-25 | 武汉钢铁股份有限公司 | Categorised box of checking of impact specimen |
| CN208270321U (en) * | 2018-05-09 | 2018-12-21 | 天津钢管集团股份有限公司 | steel impact sample cooling support device |
| CN208833585U (en) * | 2018-08-29 | 2019-05-07 | 广州文冲船厂有限责任公司 | A kind of centering tooling for Charpy-type test |
| CN210347357U (en) * | 2019-08-13 | 2020-04-17 | 上海电气核电设备有限公司 | Heat preservation frock in impact test low temperature groove |
-
2019
- 2019-08-13 CN CN201910744621.3A patent/CN110308058A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006030144A (en) * | 2004-07-21 | 2006-02-02 | Kajikkusu Trading:Kk | Sample tube heat-insulating tray and heat insulating box for multi-well plate |
| KR20100005631U (en) * | 2008-11-25 | 2010-06-04 | 양성원 | Preservation container for feed sample |
| KR20110104223A (en) * | 2010-03-16 | 2011-09-22 | 김재봉 | Gap structure of usim chip for mobile communication terminal test |
| CN202735157U (en) * | 2012-07-30 | 2013-02-13 | 武汉钢铁(集团)公司 | Adjustable sample heat preservation holder used for steel plate drop-weight test |
| CN203241290U (en) * | 2013-05-16 | 2013-10-16 | 武汉钢铁(集团)公司 | Support for cooling drop weight tear test sample |
| CN205906396U (en) * | 2016-07-11 | 2017-01-25 | 武汉钢铁股份有限公司 | Categorised box of checking of impact specimen |
| CN208270321U (en) * | 2018-05-09 | 2018-12-21 | 天津钢管集团股份有限公司 | steel impact sample cooling support device |
| CN208833585U (en) * | 2018-08-29 | 2019-05-07 | 广州文冲船厂有限责任公司 | A kind of centering tooling for Charpy-type test |
| CN210347357U (en) * | 2019-08-13 | 2020-04-17 | 上海电气核电设备有限公司 | Heat preservation frock in impact test low temperature groove |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466023A (en) * | 2021-06-30 | 2021-10-01 | 广船国际有限公司 | Sample storage tank device for low-temperature impact test |
| CN113466023B (en) * | 2021-06-30 | 2023-12-05 | 广船国际有限公司 | Sample storage tank device for low-temperature impact test |
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| CB03 | Change of inventor or designer information |
Inventor after: Xie Xiaoyu Inventor after: Jin Gang Inventor after: Gu Jialei Inventor after: Ding Jian Inventor after: Xue Xiaoli Inventor before: Xie Xiaoyu Inventor before: Gu Jialei Inventor before: Ding Jian Inventor before: Xue Xiaoli |
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