CN105259030A - Chuck mechanism special for interrupted creep test - Google Patents
Chuck mechanism special for interrupted creep test Download PDFInfo
- Publication number
- CN105259030A CN105259030A CN201510782723.6A CN201510782723A CN105259030A CN 105259030 A CN105259030 A CN 105259030A CN 201510782723 A CN201510782723 A CN 201510782723A CN 105259030 A CN105259030 A CN 105259030A
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- creep
- slot
- abort
- sample
- stopper slot
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a chuck mechanism special for an interrupted creep test and belongs to the technical field of material high-temperature mechanical property testing machines. The chuck mechanism comprises an upper chuck, a lower chuck and two clamps connected with the upper chuck and the lower chuck, one end of each clamp is provided with a threaded column and is in screw joint with the upper chuck or the lower chuck through the threaded column, the other end of each clamp is provided with a T-shaped limiting groove, the shape of the T-shaped limiting grooves is matched with that of the structure of the end of a creep sample, the two ends of the creep sample are clamped into the T-shaped limiting grooves of the two clamps respectively for a creep performance test, and gaps are reserved between the T-shaped limiting grooves and the end faces of the creep sample. By means of the technology, the chuck mechanism special for the interrupted creep test is obtained, quick demounting and quenching treatment of the non-standard creep sample under the not-cracking situation are achieved, the damage texture of the creep sample can be preserved, the normal use of creep equipment can be also ensured, the basic research of metal material high-temperature mechanical properties is accelerated, the structure design is compact, operation is convenient, and production cost is low.
Description
Technical field
The invention belongs to material at high temperature testing machine for mechanical properties technical field, be specifically related to a kind of in creep testing machine, be applicable to detect irregular creep sample and pick and place the special carrier of creep abort easily mechanism.
Background technology
Generally, the upper lower chuck of pole creep sample two ends and testing machine is threaded connection, and usually after heating furnace cooling, first sample and chuck entirety is taken off, and then is unclamped by the screw thread of sample and chuck.Along with deepening continuously to the research of Metal Materials At High Temperature mechanical property, in creep course, micromechanism damage and evolution thereof become research emphasis, if but in creep process, retain metal material carbonide at high operating temperatures and Tissue distribution by interrupting creep test, just must carry out quenching to sample.Directly chilled water is sprayed to sample, then very easily destructive test machine if utilize.Because now creep sample not yet ruptures; other quick-action clamps cannot be used again; therefore; for accelerating the basic research of Metal Materials At High Temperature mechanical property, be badly in need of a set of creep abort special carrier mechanism of design, in creep process (when sample not yet ruptures); abort can carry out chilling by under sample fast dismantling at any time; can retain creep impairment tissue, can normally use by proterctive equipment again, relevant issues are urgently to be resolved hurrily.
Summary of the invention
For current creep testing machine shortcoming, the invention provides a kind of novel in creep testing machine, be applicable to detect irregular creep sample and pick and place the special carrier of creep abort easily mechanism.
Described a kind of creep abort special carrier mechanism, comprise upper grip, lower chuck, two fixtures being connected with upper and lower chuck, it is characterized in that described fixture one end is provided with threaded post, be spirally connected by threaded post and upper grip, lower chuck, the fixture other end is provided with spacing T-slot, shape and the creep sample end construction of spacing T-slot match, creep sample two ends snap in the spacing T-slot of two fixtures respectively, carry out croop property test, between described spacing T-slot and creep sample end face, leave gap.
Described a kind of creep abort special carrier mechanism, is characterized in that described spacing T-slot is radially machined to axle center by T-slot milling cutter through fixture external cylindrical surface and forms.
Described a kind of creep abort special carrier mechanism, it is characterized in that described spacing T-slot comprises the first stopper slot and the second stopper slot, described first stopper slot is identical with the structure of the second stopper slot, is made up of respectively the straight shape groove in outside and the semicircle orifice of inboard.
Described a kind of creep abort special carrier mechanism, it is characterized in that described creep sample comprises gauge length section, transition section and loaded segment, transition section and loaded segment are two and are arranged on gauge length section two ends, loaded segment is positioned at the outside of transition section, transition section and the first stopper slot match, transition section snaps in the first stopper slot, and loaded segment and the second stopper slot match, and loaded segment snaps in the second stopper slot.
Described a kind of creep abort special carrier mechanism, it is characterized in that in described gauge length section, transition section and loaded segment, adjacent two sections of junctions are provided with chamfering, and this chamfering is less than 1 millimeter.
Described a kind of creep abort special carrier mechanism, is characterized in that described transition section length is greater than the first stopper slot height, is convenient to the change of grating measuring gauge length.
Described a kind of creep abort special carrier mechanism, is characterized in that the gap between described creep sample end face and spacing T-slot end face is not less than 3 millimeters.
Described a kind of creep abort special carrier mechanism, is characterized in that fixture adopts resistant to elevated temperatures nickel-bass alloy material to make.
Described a kind of creep abort special carrier mechanism, is characterized in that fixture is prismatic structure or cylindrical-shaped structure.
By adopting above-mentioned technology, compared with prior art, beneficial effect of the present invention:
1) spacing T-slot is set to be made up of the first stopper slot and the second stopper slot by the present invention, and each stopper slot is made up of the straight shape groove in outside and the semicircle orifice of inboard respectively, during its test, the transition section of creep sample snaps in the first stopper slot, loaded segment snaps in the second stopper slot, and the circular edges of transition section and loaded segment is along laying respectively in semicircle orifice, make its clamping compacter, be convenient to the accuracy improving test, and spacing T-slot of the present invention is radially machined to axle center by T-slot milling cutter through fixture external cylindrical surface forms, one-shot forming, it is easy to process, efficiency is high,
2) creep sample is divided into 5 sections by the present invention, and its gauge length section is used for creep test, and its transition section and loaded segment clamp for this creep sample is put into fixture; And adjacent two sections of junctions are provided with chamfering in gauge length section, transition section and loaded segment, and this chamfering is less than 1 millimeter, is the stability in order to improve its structure, effectively prevent junction phenomenon of rupture in process of the test;
3) gap between creep sample end face and spacing T-slot end face is defined as and is not less than 3 millimeters by the present invention, is convenient to after creep test terminates, take out this creep sample, prevents chuck from damaging creep sample, offers convenience simultaneously to sampling;
4) the present invention is by adopting above-mentioned technology, the creep abort special carrier mechanism obtained, achieve the quick-detachment of non-standard creep sample under not yet crack conditions and quenching, the damaged tissue of creep sample can be retained, can ensure again the normal use of creep equipment, accelerate the basic research of Metal Materials At High Temperature mechanical property, structural design is compact, easy to operate, production cost is low.
Accompanying drawing explanation
Fig. 1 is assembly structure schematic diagram of the present invention;
Fig. 2 is the axonometric drawing structural representation of fixture of the present invention;
Fig. 3 is the front view structural representation of fixture of the present invention;
Fig. 4 is the plan structure schematic diagram of fixture of the present invention;
Fig. 5 is the main TV structure schematic diagram of creep sample of the present invention.
In figure: 1-fixture, the spacing T-slot of 2-, 201-first stopper slot, 202-second stopper slot, 3-threaded post, 4-creep sample, 5-gauge length section, 6-transition section, 7-loaded segment, 8-upper grip, 9-lower chuck.
Embodiment
Below in conjunction with Figure of description, the invention will be further described, but protection scope of the present invention is not limited in this:
As Figure 1-5, a kind of creep abort special carrier mechanism of the present invention, comprise upper grip 8, lower chuck 9, with upper, two fixtures 1 that lower chuck connects, upper grip 8, lower chuck 9 arranges threaded hole, described fixture 1 adopts resistant to elevated temperatures nickel-bass alloy material to make, this fixture one end is provided with threaded post 3, by threaded post 3 and threaded hole, fixture 1 and upper grip 8 or lower chuck 9 are spirally connected, fixture 1 other end is provided with spacing T-slot 2, shape and creep sample 4 end construction of spacing T-slot 2 match, creep sample 4 two ends snap in the spacing T-slot 2 of two fixtures 1 respectively, carry out croop property test, gap is left between described spacing T-slot 2 and creep sample 4 end face.
As shown in Figures 2 and 3, spacing T-slot 2 of the present invention is radially machined to axle center by T-slot milling cutter through fixture 1 external cylindrical surface and forms, this spacing T-slot 2 comprises the first stopper slot 201 and the second stopper slot 202, described first stopper slot 201 is identical with the second stopper slot 202 structure, is made up of respectively the straight shape groove in outside and the semicircle orifice of inboard.
As shown in Figure 5, creep sample 4 of the present invention comprises gauge length section 5, transition section 6 and loaded segment 7, transition section 6 and loaded segment 7 are two and are arranged on gauge length section 5 two ends, loaded segment 7 is positioned at the outside of transition section 6, transition section 6 and the first stopper slot 201 match, transition section 6 snaps in the first stopper slot 201, loaded segment 7 and the second stopper slot 202 match, loaded segment 7 snaps in the second stopper slot 202, in order to prevent the phenomenons such as creep process Fracture, the present invention is by described gauge length section 5, in transition section 6 and loaded segment 7, adjacent two sections of junctions are provided with chamfering, and this chamfering is less than 1 millimeter, for the ease of the change of grating measuring gauge length, transition section 6 length of the present invention is greater than the first stopper slot 201 height, the preferred difference in height of the present invention is 0.5-2cm, in order to sample conveniently, gap between described creep sample 4 end face and spacing T-slot 2 end face is defined as and is not less than 3 millimeters by the present invention, ensure after creep midway stops heating and cooling unloading, decline upper grip 8, when unclamping creep sample 4, prevent press-bending creep sample 4.
Fixture 1 of the present invention adopts resistant to elevated temperatures nickel-bass alloy material to make, and its structure can be prismatic structure, also can be cylindrical-shaped structure or other similar structures.
When the present invention works, when creep process interrupt, first unclamp creep sample 4, and open fire door and remove heating furnace, then can clamp and take off creep sample 4 by direct hawkbill, by it input cooling pond, after getting again after need not waiting its cooling, it achieve the quick-detachment of non-standard creep sample under not yet crack conditions and quenching, the damaged tissue of creep sample can be retained, the normal use of creep equipment can be ensured again, accelerate the basic research of Metal Materials At High Temperature mechanical property, structural design is compact, easy to operate, and production cost is low.
Simple change and the replacement of those ordinary skill in the art are all within protection scope of the present invention.
Claims (9)
1. a creep abort special carrier mechanism, comprise upper grip (8), lower chuck (9), with upper, two fixtures (1) that lower chuck connects, it is characterized in that described fixture (1) one end is provided with threaded post (3), by threaded post (3) and upper grip (8), lower chuck (9) is spirally connected, fixture (1) other end is provided with spacing T-slot (2), shape and creep sample (4) end construction of spacing T-slot (2) match, creep sample (4) two ends snap in the spacing T-slot (2) of two fixtures (1) respectively, carry out croop property test, gap is left between described spacing T-slot (2) and creep sample (4) end face.
2. a kind of creep abort special carrier mechanism according to claim 1, is characterized in that described spacing T-slot (2) is radially machined to axle center by T-slot milling cutter through fixture (1) external cylindrical surface and forms.
3. a kind of creep abort special carrier mechanism according to claim 1, it is characterized in that described spacing T-slot (2) comprises the first stopper slot (201) and the second stopper slot (202), described first stopper slot (201) is identical with the structure of the second stopper slot (202), is made up of respectively the straight shape groove in outside and the semicircle orifice of inboard.
4. a kind of creep abort special carrier mechanism according to claim 3, it is characterized in that described creep sample (4) comprises gauge length section (5), transition section (6) and loaded segment (7), transition section (6) and loaded segment (7) are two and are arranged on gauge length section (5) two ends, loaded segment (7) is positioned at the outside of transition section (6), transition section (6) and the first stopper slot (201) match, transition section (6) snaps in the first stopper slot (201), loaded segment (7) and the second stopper slot (202) match, loaded segment (7) snaps in the second stopper slot (202).
5. a kind of creep abort special carrier mechanism according to claim 4, it is characterized in that in described gauge length section (5), transition section (6) and loaded segment (7), adjacent two sections of junctions are provided with chamfering, and this chamfering is less than 1 millimeter.
6. a kind of creep abort special carrier mechanism according to claim 3, is characterized in that described transition section (6) length is greater than the first stopper slot (201) highly, is convenient to the change of grating measuring gauge length.
7. a kind of creep abort special carrier mechanism according to claim 4, is characterized in that the gap between described creep sample (4) end face and spacing T-slot (2) end face is not less than 3 millimeters.
8. a kind of creep abort special carrier mechanism according to claim 1, is characterized in that fixture (1) adopts resistant to elevated temperatures nickel-bass alloy material to make.
9. a kind of creep abort special carrier mechanism according to claim 4, is characterized in that fixture (1) is for prismatic structure or cylindrical-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510782723.6A CN105259030A (en) | 2015-11-16 | 2015-11-16 | Chuck mechanism special for interrupted creep test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510782723.6A CN105259030A (en) | 2015-11-16 | 2015-11-16 | Chuck mechanism special for interrupted creep test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105259030A true CN105259030A (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510782723.6A Pending CN105259030A (en) | 2015-11-16 | 2015-11-16 | Chuck mechanism special for interrupted creep test |
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| CN (1) | CN105259030A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831061A (en) * | 2017-11-18 | 2018-03-23 | 北京科技大学 | A kind of creep and stress rupture test machine sample Quick cooling equipment |
| CN109374405A (en) * | 2018-11-12 | 2019-02-22 | 中国航发北京航空材料研究院 | A kind of ceramic fixture for the test of superhigh temperature creep tensile strength |
| CN110501216A (en) * | 2019-09-25 | 2019-11-26 | 中南大学 | A kind of creep compression clamp component |
| CN111442975A (en) * | 2020-05-20 | 2020-07-24 | 中国科学院金属研究所 | High-temperature creep test fixture for arc-shaped curved surface metal thin-wall sample and using method |
| CN112359182A (en) * | 2020-11-09 | 2021-02-12 | 燕山大学 | Make things convenient for high temperature singly to draw sample quenching treatment's anchor clamps |
| CN112665961A (en) * | 2020-11-24 | 2021-04-16 | 西安交通大学 | Test device and method for monitoring SCC crack initiation signal based on DCPD method |
| CN114750088A (en) * | 2022-04-08 | 2022-07-15 | 北航（四川）西部国际创新港科技有限公司 | Thin-wall sample test fixture |
Citations (4)
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| JPH1048111A (en) * | 1996-08-01 | 1998-02-20 | Shimadzu Corp | Material tester |
| CN104483190A (en) * | 2014-12-20 | 2015-04-01 | 重庆迎瑞升压铸有限公司 | Tensile testing clamp for bolts |
| 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 |
| CN205246435U (en) * | 2015-11-16 | 2016-05-18 | 浙江工业大学 | Experimental special chuck mechanism is suspend in creep |
-
2015
- 2015-11-16 CN CN201510782723.6A patent/CN105259030A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1048111A (en) * | 1996-08-01 | 1998-02-20 | Shimadzu Corp | Material tester |
| CN104483190A (en) * | 2014-12-20 | 2015-04-01 | 重庆迎瑞升压铸有限公司 | Tensile testing clamp for bolts |
| 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 |
| CN205246435U (en) * | 2015-11-16 | 2016-05-18 | 浙江工业大学 | Experimental special chuck mechanism is suspend in creep |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831061A (en) * | 2017-11-18 | 2018-03-23 | 北京科技大学 | A kind of creep and stress rupture test machine sample Quick cooling equipment |
| CN109374405A (en) * | 2018-11-12 | 2019-02-22 | 中国航发北京航空材料研究院 | A kind of ceramic fixture for the test of superhigh temperature creep tensile strength |
| CN110501216A (en) * | 2019-09-25 | 2019-11-26 | 中南大学 | A kind of creep compression clamp component |
| CN110501216B (en) * | 2019-09-25 | 2024-03-08 | 中南大学 | Creep compression clamp assembly |
| CN111442975A (en) * | 2020-05-20 | 2020-07-24 | 中国科学院金属研究所 | High-temperature creep test fixture for arc-shaped curved surface metal thin-wall sample and using method |
| CN112359182A (en) * | 2020-11-09 | 2021-02-12 | 燕山大学 | Make things convenient for high temperature singly to draw sample quenching treatment's anchor clamps |
| CN112359182B (en) * | 2020-11-09 | 2021-08-20 | 燕山大学 | Make things convenient for high temperature singly to draw sample quenching treatment's anchor clamps |
| CN112665961A (en) * | 2020-11-24 | 2021-04-16 | 西安交通大学 | Test device and method for monitoring SCC crack initiation signal based on DCPD method |
| CN112665961B (en) * | 2020-11-24 | 2023-06-02 | 西安交通大学 | Test device and method for monitoring SCC crack initiation signals based on DCPD method |
| CN114750088A (en) * | 2022-04-08 | 2022-07-15 | 北航（四川）西部国际创新港科技有限公司 | Thin-wall sample test fixture |
| CN114750088B (en) * | 2022-04-08 | 2024-02-20 | 北航（四川）西部国际创新港科技有限公司 | Thin-wall sample test fixture |
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Application publication date: 20160120 |