CN201107245Y - Fluid environment apparatus of metal fatigue test - Google Patents
Fluid environment apparatus of metal fatigue test Download PDFInfo
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- CN201107245Y CN201107245Y CNU2007200421538U CN200720042153U CN201107245Y CN 201107245 Y CN201107245 Y CN 201107245Y CN U2007200421538 U CNU2007200421538 U CN U2007200421538U CN 200720042153 U CN200720042153 U CN 200720042153U CN 201107245 Y CN201107245 Y CN 201107245Y
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Abstract
The utility model relates to a fluid environment device for a metal fatigue test, which is characterized in that a waist drum-shaped sample with a thin middle test section and thick clamping sections at both ends is adopted, an arc transition is adopted between the middle test section and the clamping sections at the both ends, cylindrical outer sleeves are arranged on the external periphery of the sample, enclosable fluid inlet openings and fluid outlet openings are respectively arranged on the side walls of the cylindrical outer sleeves, the sample forms the sealing with the cylindrical outer sleeves at the positions close to the middle test section on the clamping sections, and the fluid environment is formed in a sealed cavity body between the cylindrical outer sleeves and the middle test section of the sample. The fluid environment device solves the problem that a conventional fatigue testing machine can not directly perform the fatigue test in the fluid environment except air, and has the advantages that the consumed test fluid volume is small during the testing process, the fluid environment device can not contaminate the environment, the structure is simple, and the implementation is easy.
Description
Technical field
The utility model relates to test unit, a kind of being applied in the metal fatigue test of more specifically having said so, the device of the fluid environment that provides for test.
Background technology
Metal material can be applicable to various varying environments, as water, lubricating oil, corrosive liquid, gas etc.Fatigue behaviour difference under the varying environment is very big, and when Machine Design, test judges that the fatigue behaviour under the applied environment is indispensable.Conventional fatigue test device normally carries out in air, does not consider different fluid environments.But metal material may be worked under various rugged surroundings in the actual engineering.
Corrosion-physical disturbance phenomenon that corrosive medium and varying stress act on generation simultaneously is called corrosion fatigue.The test unit of corrosion fatigue at present generally is on common fatigue experimental device, adds that the environmental device of simulation etching condition is formed.For example, the aluminium alloy torture test of U.S. Royal Aircraft Establishment, the environmental chamber of making at organic glass of working portion affix of sample exactly, refill a nozzle ejection corrosive liquid, another nozzle then fills with pressurized air, impels corrosive liquid to present during to the sample working surface vaporific at nozzle.There are two leakage holes this chamber simultaneously, and corrosive liquid can be recycled.Zhengzhou Research Institute of Mechanical Engineering and Northeast Polytechnic College put an environmental chamber of being made by organic glass when carrying out the corrosion fatigue test of turbine impeller material, pass to recirculated water and test.These corrosion environment devices all with the test specimen simple combination together, install staticly relatively, and test specimen is moving in process of the test always, the motive seal poor performance.
Because test specimen is subjected to the alterante stress effect doing micro breadth oscillation during torture test always, motive seal is the gordian technique of fatigue corrosion environment.The problem that present existing corrosion environment device mostly exists is to comprise:
1, torture test corrosion environment device is primarily aimed at general weak corrosive liquid environment, as marine corrosion, salt air corrosion etc., is difficult to satisfy the requirement of those deep-etching liquid to motive seal.
2, test specimen vibrates thereupon during torture test, is difficult to satisfy the motive seal performance demands of high pressure etchant gas to device, so the enforcement of the torture test the etchant gas environment under difficulty is big.
Summary of the invention
The utility model is for avoiding above-mentioned existing in prior technology deficiency, a kind of delicate structure is provided, can forms the fluid environment device of the metal fatigue test of liquids and gases different fluid environment.
The utility model technical solution problem adopts following technical scheme:
The design feature of the fluid environment device of the utility model metal fatigue test is to adopt the semipilot section thin, the dolioform sample that the two ends gripping section is thick, between semipilot section and two ends gripping section, be arc transition, periphery at sample is provided with cylindrical jacket, the fluid intake and the fluid egress point that can seal are set respectively on the sidewall of cylindrical jacket, described sample is on gripping section, be on the nearly semipilot fragment position form and described cylindrical jacket between sealing, fluid environment is formed in the cavity of the sealing between cylindrical jacket and the sample semipilot section.
Design feature of the present utility model also is:
On the gripping section of described sample two ends, be in nearly semipilot fragment position place, along its periphery the ring seal groove is set respectively, be placed on the O-ring seal that forms ring seal between sample and the cylindrical jacket in the sealed groove.
On the cylindrical jacket of described O-ring seal position, snap ring is set.
The fluid intake of described cylindrical jacket is in different sides with the same side or branch that fluid egress point is positioned at cylindrical jacket.
Described cylindrical jacket is corrosion-resistant polymkeric substance macromolecule organic material.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
1, the utility model has solved the problem that conventional fatigue tester can not directly be done torture test under the fluid environment outside the air, and the consumption test Fluid Volume is few in the process of the test, does not pollute the environment.
2, the utility model device vibrates with test specimen attached on the test specimen, and the motive seal performance is good.
3, the utility model is simple in structure, easy to implement.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the A-A sectional drawing of Fig. 1.
Fig. 3 is the B-B sectional drawing of Fig. 1.
Number in the figure: 1 semipilot section, 2 two ends gripping sections, 3 cylindrical jackets, 4 fluid intakes, 5 fluid egress points, 6 O-ring seals, 7 snap rings, 8 bolts, 9 cavitys.
Below by embodiment, the utility model is described in further detail in conjunction with the accompanying drawings:
Embodiment:
Referring to Fig. 1, Fig. 3, present embodiment adopts the semipilot section thin, the dolioform sample that the two ends gripping section is thick, between the semipilot section 1 of sample and two ends gripping section 2 is arc transition, periphery at sample is provided with cylindrical jacket 3, the fluid intake 4 and the fluid egress point 5 that can seal are set respectively on the sidewall of cylindrical jacket 3, sample is on two ends gripping section 2, be in form on the position of nearly semipilot section 1 and cylindrical jacket 3 between sealing, fluid environment is formed in the cavity 9 of the sealing between cylindrical jacket 3 and the sample semipilot section 1.
Shown in Figure 1, in concrete the enforcement, on sample two ends gripping section 2, be in a side of nearly semipilot section 1, from clip position 1-2cm place, along its periphery the ring seal groove is set respectively, be placed with the O-ring seal 6 that between sample and cylindrical jacket, forms ring seal in the sealed groove.Shown in Figure 2, on the cylindrical jacket 3 of O-ring seal 6 positions, snap ring 7 is set, to carry out fasteningly with 8 pairs of snap rings of bolt 7, this version has been strengthened the motive seal effect of O-ring seal, can prevent effectively that fluid from oozing out by the surface of torture test sample.
According to different needs, the fluid intake 4 on the cylindrical jacket 3 is in different sides with the same side or branch that fluid egress point 5 can be arranged on cylindrical jacket 3.Than big gas, fluid directly injects by fluid intake 4 for liquid and density, and air is discharged from fluid egress point 5, and sealing fluid inlet 4 and fluid egress point 5 can form fluid environment after cavity 9 was filled in cavity 9; Also can fluid egress point 5 be communicated with fluid recycling apparatus, form fluid flowing in cavity 9 by fluid intake 4 is communicated with the fluid source place.
Claims (5)
1, the fluid environment device of metal fatigue test, it is characterized in that adopting the semipilot section thin, the dolioform sample that the two ends gripping section is thick, between semipilot section (1) and two ends gripping section (2) is arc transition, periphery at described sample is provided with cylindrical jacket (3), the fluid intake (4) and the fluid egress point (5) that can seal are set respectively on the sidewall of cylindrical jacket (3), described sample is on gripping section, be on the nearly semipilot fragment position form and described cylindrical jacket (3) between sealing, fluid environment is formed in the cavity (9) of the sealing between cylindrical jacket (3) and the sample semipilot section (1).
2, the fluid environment device of metal fatigue test according to claim 1, it is characterized in that on described sample two ends gripping sections (2), be in the position of nearly semipilot section (1), along its periphery the ring seal groove is set respectively, is placed on the O-ring seal (6) that forms ring seal between sample and the cylindrical jacket (3) in the sealed groove.
3, the fluid environment device of metal fatigue test according to claim 2 is characterized in that on the cylindrical jacket (3) of described O-ring seal (6) position snap ring (7) being set.
4, according to the fluid environment device of the described metal fatigue test of claim 1, it is characterized in that the fluid intake (4) of described cylindrical jacket (3) is in different sides with the same side or the branch that fluid egress point (5) is positioned at cylindrical jacket (3).
5, according to the fluid environment device of the described metal fatigue test of claim 1, it is characterized in that described cylindrical jacket (3) is corrosion-resistant polymkeric substance macromolecule organic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200421538U CN201107245Y (en) | 2007-11-09 | 2007-11-09 | Fluid environment apparatus of metal fatigue test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200421538U CN201107245Y (en) | 2007-11-09 | 2007-11-09 | Fluid environment apparatus of metal fatigue test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201107245Y true CN201107245Y (en) | 2008-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007200421538U Expired - Fee Related CN201107245Y (en) | 2007-11-09 | 2007-11-09 | Fluid environment apparatus of metal fatigue test |
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| CN (1) | CN201107245Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698203A (en) * | 2013-12-12 | 2014-04-02 | 中国航空工业集团公司北京航空材料研究院 | Sheet material corrosion device for fatigue crack propagation test |
| CN103994904A (en) * | 2013-02-18 | 2014-08-20 | 波音公司 | Coupon geometries that induce failure in gauge area of composite fatigue test coupons |
| CN105043848A (en) * | 2015-06-09 | 2015-11-11 | 中南大学 | Fatigue testing apparatus and method of metal thin plate in dust environment |
| CN105651630A (en) * | 2015-12-29 | 2016-06-08 | 东南大学 | Experimental device for simulating cycle tension and compression alternating load of material in fluid environment |
| CN107438698A (en) * | 2015-01-30 | 2017-12-05 | 海德里尔美国配送有限责任公司 | The monitoring based on condition for the material in wellbore applications |
-
2007
- 2007-11-09 CN CNU2007200421538U patent/CN201107245Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994904A (en) * | 2013-02-18 | 2014-08-20 | 波音公司 | Coupon geometries that induce failure in gauge area of composite fatigue test coupons |
| CN103994904B (en) * | 2013-02-18 | 2016-08-10 | 波音公司 | The specimen geometry of fatigue is caused in the measurement zone of Composites Fatigue test sample |
| CN103698203A (en) * | 2013-12-12 | 2014-04-02 | 中国航空工业集团公司北京航空材料研究院 | Sheet material corrosion device for fatigue crack propagation test |
| CN103698203B (en) * | 2013-12-12 | 2016-03-30 | 中国航空工业集团公司北京航空材料研究院 | A kind of light sheet material corrosion device for fatigue crack propagation test |
| CN107438698A (en) * | 2015-01-30 | 2017-12-05 | 海德里尔美国配送有限责任公司 | The monitoring based on condition for the material in wellbore applications |
| CN107438698B (en) * | 2015-01-30 | 2019-12-31 | 海德里尔美国配送有限责任公司 | Condition-based monitoring of materials for use in wellbore applications |
| CN105043848A (en) * | 2015-06-09 | 2015-11-11 | 中南大学 | Fatigue testing apparatus and method of metal thin plate in dust environment |
| CN105651630A (en) * | 2015-12-29 | 2016-06-08 | 东南大学 | Experimental device for simulating cycle tension and compression alternating load of material in fluid environment |
| CN105651630B (en) * | 2015-12-29 | 2019-03-05 | 东南大学 | Simulation material is in the fluid environment by the experimental provision for recycling tension and compression alternate load |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080827 Termination date: 20101109 |