CN204831910U - Bolt sample anchor clamps of reheat crack(ing) sensitivity test - Google Patents
Bolt sample anchor clamps of reheat crack(ing) sensitivity test Download PDFInfo
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- CN204831910U CN204831910U CN201520619338.5U CN201520619338U CN204831910U CN 204831910 U CN204831910 U CN 204831910U CN 201520619338 U CN201520619338 U CN 201520619338U CN 204831910 U CN204831910 U CN 204831910U
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- rotating joint
- joint
- rotary joint
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- threaded
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- 238000012360 testing method Methods 0.000 title claims abstract description 52
- 230000035945 sensitivity Effects 0.000 title claims abstract description 9
- 238000003801 milling Methods 0.000 claims description 8
- 238000003303 reheating Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a bolt sample anchor clamps of reheat crack(ing) sensitivity test, including last adapter and lower adapter, in using, the utility model discloses the setting is in the heating furnace that has the tensile loading function test machine of constant load high temperature. Wherein, go up the one end of adapter and the last connecting rod threaded connection who has the tensile load function test machine of constant load high temperature, the one end of lower adapter and the lower connecting rod threaded connection who has the tensile load function test machine of constant load high temperature go up and are used for setting up the reheat crack(ing) sample between the other end of the other end and the lower adapter of adapter to reach the mesh of centre gripping sample. The utility model discloses simple structure, special testing equipment is avoided developing by usable current common testing machine that has the tensile loading function of constant load high temperature, low cost, the test result is more accurate.
Description
The technical field is as follows:
the utility model belongs to the technical field of the material test, more exactly say, relate to an utilize the testing machine that has the tensile loading function of constant load high temperature to carry out reheat crack sensitivity test's bolt sample anchor clamps.
Background art:
some important large welding structures inevitably have large welding residual stress, and the post-welding heat treatment is often needed to eliminate the welding residual stress. The postweld heat treatment can improve the performance of the whole welded joint and the structure of a welding heat affected zone, and prevent low-stress brittle failure, cold cracks, stress corrosion cracks and the like, but certain steel grades and high-temperature alloys containing precipitation strengthening elements have obvious reheat crack tendency, and reheat cracks are often generated in the postweld heat treatment process. Various steel materials or high-temperature alloys have a temperature range sensitive to the reheat cracks, and the reheat cracks can be avoided only by avoiding the temperature range sensitive to the reheat cracks in the postweld heat treatment process, so that the method has important significance in accurately, reliably and simply measuring the temperature range sensitive to the reheat cracks.
The other method is to process a bolt sample (refer to GB9446-88 'welding-bolt cold crack test method'), test by adopting a bolt testing machine provided with a heating system, a temperature measuring system, a cooling system and the like, but special non-standard test equipment needs to be researched, and the test cost is high. Because the demand of the testing machine is not high, no special testing machine production enterprises are available at present, each testing unit generally executes design trial production, the testing machine is very simple in structure, particularly, in order to reduce the manufacturing cost, the loading is generally realized through a very simple lever, the accuracy of a force value in the testing process and the coaxiality of a sample are not ideal, and the dispersibility of test data is large.
The utility model has the following contents:
an object of the utility model is to overcome above-mentioned prior art not enough, provide a reheat crack sensitivity test's bolt sample anchor clamps.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a bolt sample clamp for a reheat crack sensitivity test comprises an upper rotary joint and a lower rotary joint; wherein, the one end of upper swivel and the last connecting rod threaded connection who has the tensile loading function test machine of constant load high temperature, the one end that connects down with the lower connecting rod threaded connection who has the tensile loading function test machine of constant load high temperature, be used for setting up reheat crack sample between the other end that connects up and the other end that connects down.
The utility model discloses further improvement lies in: the one end of going up the rotary joint is provided with the upper rotary joint threaded rod, threaded connection between the screw hole of seting up on this upper rotary joint threaded rod and the last connecting rod.
The utility model discloses further improvement lies in: the upper rotary joint is provided with an upper rotary joint milling groove in the circumferential direction close to the upper rotary joint threaded rod.
The utility model discloses further improvement lies in: one end of the lower rotating joint is provided with a lower rotating joint threaded rod, and the lower rotating joint threaded rod is in threaded connection with a threaded hole formed in the lower connecting rod.
The utility model discloses further improvement lies in: the lower adapter is provided with a milling groove of the lower adapter in the circumferential direction close to the threaded rod of the lower adapter.
The utility model discloses further improvement lies in: the other end of the upper rotating joint is provided with a U-shaped groove, a square transverse through hole is formed in the axial direction of the upper rotating joint, and the U-shaped groove is communicated with the square transverse through hole to form a clamping groove; the other end of the lower rotating joint is provided with a lower rotating joint threaded hole; one end of the reheating crack sample is in threaded connection with the lower rotating joint threaded hole at the other end of the lower rotating joint, and the other end of the reheating crack sample is clamped in the clamping groove at the other end of the upper rotating joint.
Compared with the prior art, the utility model discloses following beneficial effect has:
during the use, will the utility model provides an upper rotating joint's one end and the last connecting rod threaded connection who has constant load high temperature tensile loading function test machine, lower connecting rod threaded connection who connects the one end and have constant load high temperature tensile loading function test machine down will reheat the crackle sample setting at last between the other end of upper adapter and the other end that connects down.
Furthermore, can with the utility model provides an bolt sample anchor clamps are installed and are carried out reheat crack sensitivity test in the common various testing machines that have the tensile loading function of constant load high temperature in laboratory, experimental simple accurate because these testing machine force values accuracy is high, and the axiality is good, and the data degree of accuracy is good. The testing machine with the constant-load high-temperature tensile loading function comprises a high-temperature tensile testing machine, a high-temperature creep testing machine, a high-temperature slow tensile stress corrosion testing machine and the like, wherein a pull rod and a clamp of the testing machine are generally designed for rod-shaped and plate-shaped tests, and a sample is generally clamped by a thread or wedge-shaped clamp.
Description of the drawings:
FIG. 1 is a schematic view of the installation of a pin sample holder for reheat cracking susceptibility testing of the present invention;
fig. 2 is a side view of the upper swivel of the present invention;
fig. 3 is a bottom view of the upper rotating joint of the present invention;
fig. 4 is a side view of the lower adapter of the present invention.
In the figure: 1-heating furnace with constant load high temperature tensile loading function testing machine; 2-an upper connecting rod of the testing machine with the constant-load high-temperature tensile loading function; 3-an upper adapter; 4-reheating the crack sample; 5-a down-turn joint; 6-a lower connecting rod of the testing machine with the constant-load high-temperature tensile loading function; 7-turning up the threaded rod of the joint; 8-milling a groove on the upper rotary joint; 9-square transverse through holes; 10-U-shaped groove; 11-lower swivel threaded rod; 12-lower adapter threaded hole; 13-milling grooves on lower joints.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, the present invention relates to a bolt sample clamp for reheat crack sensitivity test, which comprises an upper rotary joint 3 and a lower rotary joint 5; during the use, the utility model discloses the setting is in heating furnace 1 who has the tensile loading function test machine of constant load high temperature.
Wherein, the one end of upper adapter 3 and the 2 threaded connection of last connecting rod that have the tensile loading function test machine of constant load high temperature, the one end of lower adapter 5 and the 6 threaded connection of lower connecting rod that have the tensile loading function test machine of constant load high temperature are used for setting up reheat crack sample 4 between the other end of upper adapter 3 and the other end of lower adapter 5.
Further, as shown in fig. 2 and 3, an upper rotary joint threaded rod 7 is disposed at one end of the upper rotary joint 3, and the upper rotary joint threaded rod 7 is in threaded connection with a threaded hole formed in the upper connecting rod 2. In addition, the upper rotary joint milling groove 8 is formed in the circumferential direction, close to the upper rotary joint threaded rod 7, of the upper rotary joint 3, and therefore the upper rotary joint 3 and the reheating crack sample 4 are convenient to assemble and disassemble.
Further, as shown in fig. 4, one end of the lower rotary joint 5 is provided with a lower rotary joint threaded rod 11, and the lower rotary joint threaded rod 11 is in threaded connection with a threaded hole formed in the lower connecting rod 6. In addition, the lower rotary joint milling groove 13 is formed in the circumferential direction, close to the lower rotary joint threaded rod 11, of the lower rotary joint 5, and therefore the lower rotary joint 5 and the reheat crack sample 4 can be conveniently assembled and disassembled.
Further, as shown in fig. 1 to 4, a U-shaped groove 10 is formed at the other end of the upper adapter 3, a tail of the U-shaped groove 10 extends to the center of the other end of the upper adapter 3, a square transverse through hole 9 is formed in the axial direction of the upper adapter 3, and the U-shaped groove 10 is communicated with the square transverse through hole 9 to form a clamping groove; the other end of the lower rotating joint 5 is provided with a lower rotating joint threaded hole 12; one end of the reheating crack sample 4 is in threaded connection with the lower rotating joint threaded hole 12 at the other end of the lower rotating joint 5, and the other end of the reheating crack sample 4 is clamped in the clamping groove at the other end of the upper rotating joint 3.
The utility model discloses an upper rotary joint 3 and lower rotary joint 5's material is the superalloy material that has higher tensile strength and creep resistance ability, good oxidation resistance and corrosion resistance.
Claims (6)
1. The utility model provides a reheat crack sensitivity test's bolt sample anchor clamps which characterized in that: comprises an upper rotary joint (3) and a lower rotary joint (5); wherein,
the one end of upper rotating joint (3) and last connecting rod (2) threaded connection who has constant load high temperature tensile loading function test machine, the one end of lower rotating joint (5) and lower connecting rod (6) threaded connection who has constant load high temperature tensile loading function test machine are used for setting up reheat crack sample (4) between the other end of upper rotating joint (3) and the other end of lower rotating joint (5).
2. The reheat crack susceptibility test bolt specimen holder of claim 1, wherein: an upper rotating joint threaded rod (7) is arranged at one end of the upper rotating joint (3), and the upper rotating joint threaded rod (7) is in threaded connection with a threaded hole formed in the upper connecting rod (2).
3. The reheat crack susceptibility test bolt specimen holder of claim 2, wherein: an upper rotating joint milling groove (8) is formed in the circumferential direction, close to the upper rotating joint threaded rod (7), of the upper rotating joint (3).
4. The reheat crack susceptibility test bolt specimen holder of claim 1, wherein: one end of the lower rotating joint (5) is provided with a lower rotating joint threaded rod (11), and the lower rotating joint threaded rod (11) is in threaded connection with a threaded hole formed in the lower connecting rod (6).
5. The reheat crack susceptibility test bolt specimen holder of claim 4, wherein: a lower rotary joint milling groove (13) is formed in the circumferential direction of the lower rotary joint (5) close to the lower rotary joint threaded rod (11).
6. The reheat crack susceptibility test bolt specimen holder of claim 1, wherein: the other end of the upper rotary joint (3) is provided with a U-shaped groove (10), the axial direction of the upper rotary joint (3) is provided with a square transverse through hole (9), and the U-shaped groove (10) is communicated with the square transverse through hole (9) to form a clamping groove; the other end of the lower rotating joint (5) is provided with a lower rotating joint threaded hole (12); one end of the reheating crack sample (4) is in threaded connection with a lower rotary joint threaded hole (12) at the other end of a lower rotary joint (5), and the other end of the reheating crack sample (4) is clamped in a clamping groove at the other end of the upper rotary joint (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520619338.5U CN204831910U (en) | 2015-08-17 | 2015-08-17 | Bolt sample anchor clamps of reheat crack(ing) sensitivity test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520619338.5U CN204831910U (en) | 2015-08-17 | 2015-08-17 | Bolt sample anchor clamps of reheat crack(ing) sensitivity test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204831910U true CN204831910U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520619338.5U Active CN204831910U (en) | 2015-08-17 | 2015-08-17 | Bolt sample anchor clamps of reheat crack(ing) sensitivity test |
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| Country | Link |
|---|---|
| CN (1) | CN204831910U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043857A (en) * | 2015-08-17 | 2015-11-11 | 西安热工研究院有限公司 | Inserted pin test sample clamp for reheating crack sensitivity test |
| CN109952500A (en) * | 2016-10-31 | 2019-06-28 | 日本制铁株式会社 | Stress test fixture and stress test method |
-
2015
- 2015-08-17 CN CN201520619338.5U patent/CN204831910U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043857A (en) * | 2015-08-17 | 2015-11-11 | 西安热工研究院有限公司 | Inserted pin test sample clamp for reheating crack sensitivity test |
| CN109952500A (en) * | 2016-10-31 | 2019-06-28 | 日本制铁株式会社 | Stress test fixture and stress test method |
| CN109952500B (en) * | 2016-10-31 | 2021-08-24 | 日本制铁株式会社 | Clamp for stress test and stress test method |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |