CN101221108A - Rotating and bending corrosion fatigue testing device - Google Patents
Rotating and bending corrosion fatigue testing device Download PDFInfo
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- CN101221108A CN101221108A CNA2008100571591A CN200810057159A CN101221108A CN 101221108 A CN101221108 A CN 101221108A CN A2008100571591 A CNA2008100571591 A CN A2008100571591A CN 200810057159 A CN200810057159 A CN 200810057159A CN 101221108 A CN101221108 A CN 101221108A
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Abstract
The invention discloses a rotary bending corrosion fatigue test device. The device includes a rotary bending fatigue test device and a corrosion liquor supplying system; wherein, the rotary bending fatigue test device is used for mounting a test piece and applies bending load on the test piece during the process of driving the test piece to rotate and realizes the test on the fatigue data of the test piece. The corrosion liquor supplying system includes a liquor storage tank, a transfusion pump, a flow adjusting valve and a connecting pipeline. The corrosion liquor supplying system feeds the corrosion liquor to the test piece during testing in real time from an output opening. The invention realizes the testing on the middle, high cycle and ultra-high cycle corrosion fatigue performance of the material by adding the corrosion liquor supplying system based on the existing rotary bending fatigue test device machine. As the design of the test device is approximate to an engineering design, the measured result by using the device has a greater reference value to the engineering design. The corrosion fatigue test device of the invention has the advantages of simple structure and convenient operation, and can get standardized test results.
Description
Technical field
The present invention relates to the fatigue test of materials technology, especially a kind of rotating and bending corrosion fatigue testing device.
Background technology
The corrosion fatigue of material is the problem that engineering circle and scientific circles pay close attention to always.Alternate load and media environment double action are all born in in-service by many equipment and mechanism in the engineering, promptly bear corrosion fatigue, for example: bridge member, turbine engine component etc. in-service in, bear the effect of surrounding medium and alternate load, therefore, how coming the Corrosion Fatigue Properties of test material is a major issue of fatigue of materials research.
In the past, people were immersed in the material test specimen in the corrosive liquid fully usually, and alternately exerted pressure and pulling force at the test specimen two ends when the corrosion fatigue test of carrying out material, obtained the corrosion fatigue data of material with this.Because the mode that the applies difference of load, the duty of this test mode when reaction material bears alternating bending load in corrosion environment truly, thereby the foundation of its resulting data also can't be the time as engineering design.
Summary of the invention
Problem at the prior art existence, the objective of the invention is on the basis of existing rotary bending tester, design a kind of rotating and bending corrosion fatigue testing device that can test the alternating bending fatigue of material in the corrosion environment, utilize this device under different corrosive medium environment, to carry out fatigue property test material.
For achieving the above object, technical scheme of the present invention is:
A kind of rotating and bending corrosion fatigue testing device, comprise rotoflector fatigue test device and corrosive liquid feed system, wherein, the rotoflector fatigue test device is used for being installed of test specimen, and in driving the test specimen rotary course, it is applied bending load, and realize test to the test specimen fatigue data; The corrosive liquid feed system comprises fluid reservoir, infusion pump, flow control valve and connecting tube, and the corrosive liquid feed system is by its delivery outlet conveying of the test specimen in test in real time corrosive liquid.
Further, the fluid reservoir in the described corrosive liquid feed system is arranged on the top of the test specimen that is installed on the described rotoflector fatigue test device, and the corrosive liquid in it utilizes self gravitation to fall to being applied to the test specimen surface.
Further, on the described rotoflector fatigue test device below the described test specimen position that is installed, also be provided with the corrosive liquid returnable, this container links to each other by the input end of the infusion pump in pipeline and the described corrosive liquid feed system, makes the corrosive liquid feed system become one and can carry out self-round-robin system.
Further, be provided with liquid level sensor in the described returnable, described infusion pump sends back to the corrosive liquid in the returnable in the fluid reservoir automatically according to the detection signal of liquid level sensor.
The present invention by increase corrosive liquid feed system, thereby has realized the middle and high week to material, the test of all Corrosion Fatigue Properties of superelevation on the basis of existing rotary bending tester.Because the design and the engineering reality of test unit are approaching, thereby use this device measured result that engineering design is had bigger reference value.Corrosion fatigue testing device of the present invention is simple in structure, and is easy and simple to handle, can obtain normalized experimental result, and etchant solution wherein also can be realized recycling in process of the test, and the experimental solutions flow can be controlled.
Description of drawings
Fig. 1 is first kind of embodiment structural representation of the present invention;
Fig. 2 is second kind of embodiment structural representation of the present invention;
The drawing explanation: 1 pipeline, 2 fluid reservoirs, 3 flow control valves, 4 test specimens, 5 infusion pumps, 6 accumulator tanks, 7 load counterweight, 8 rotation fatigue test devices.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail.
Embodiment 1:
Device as shown in Figure 1, comprise the corrosive liquid feed system and the rotation fatigue test device 8 that constitute by fluid reservoir 2, valve 3, infusion pump 5, pipeline 1, accumulator tank 6, rotation fatigue test device 8 wherein adopts existing experimental provision, and this experimental provision is from being furnished with the counterweight 7 of loading.Test specimen 4 is installed on the rotation fatigue test device 8, and the fluid reservoir 2 of corrosive liquid feed system and corrosive liquid delivery outlet all are arranged on test specimen 4 tops, 6 belows that are arranged on test specimen 4 of accumulator tank.
During experiment, rotation fatigue test device 8 drives test specimen 4 rotations, and utilize to load counterweight 7 it is applied bending load, simultaneously, the corrosivity experimental solutions drips on the surface of sample 4 by pipeline under action of gravity, make experimental solutions continuously drip on test specimen 4 surfaces, the test specimen 4 surfaces liquid that is corroded all the time covers, and so promptly realizes the test to material alternating bending fatigue behaviour under corrosion environment.During operation, the flow of corrosive liquid can be regulated by valve 3; The frequency of the alternating bending load that test specimen 4 is born then can be set by the rotating speed of regulating drive motor in the experimental provision.Experimental solutions drops onto the accumulator tank 6 from test specimen 4 surfaces, and after reaching of the experimental solutions in the accumulator tank was a certain amount of, infusion pump 5 work sent back to the corrosive liquid that reclaims in the fluid reservoir 2 once more.Experimental solutions is transported in the fluid reservoir 2 via pipeline 1 by infusion pump 5 in the accumulator tank 6, has realized recycling of experimental solutions.In addition, extracted a certain amount of experimental solutions detectable concentration in per 12 hours, regulate experimental solutions concentration and reach setting value.
The present embodiment experimental provision is fit to the Corrosion Fatigue Properties of test material under weak volatility corrosive medium.
Embodiment 2:
Fig. 2 is second kind of embodiment synoptic diagram of the present invention, and the setting of liquid-transport pipe-line 1 and valve 3 is identical with embodiment 1.But in the present embodiment, experimental solutions does not recycle after dropping onto accumulator tank 5, directly stores.It is suitable for the Corrosion Fatigue Properties of test material in the stronger medium of volatility.
Claims (4)
1. rotating and bending corrosion fatigue testing device, it is characterized in that, comprise rotoflector fatigue test device and corrosive liquid feed system, wherein, the rotoflector fatigue test device is used for being installed of test specimen, and in driving the test specimen rotary course, it is applied bending load, and realize test to the test specimen fatigue data; The corrosive liquid feed system comprises fluid reservoir, infusion pump, flow control valve and connecting tube, and the corrosive liquid feed system is by its delivery outlet conveying of the test specimen in test in real time corrosive liquid.
2. rotating and bending corrosion fatigue testing device as claimed in claim 1, it is characterized in that, fluid reservoir in the described corrosive liquid feed system is arranged on the top of the test specimen that is installed on the described rotoflector fatigue test device, and the corrosive liquid in it utilizes self gravitation to fall to being applied to the test specimen surface.
3. rotating and bending corrosion fatigue testing device as claimed in claim 2, it is characterized in that, on the described rotoflector fatigue test device below the described test specimen position that is installed, also be provided with the corrosive liquid returnable, this container links to each other by the input end of the infusion pump in pipeline and the described corrosive liquid feed system, makes the corrosive liquid feed system become one and can carry out self-round-robin system.
4. rotating and bending corrosion fatigue testing device as claimed in claim 3, it is characterized in that, be provided with liquid level sensor in the described returnable, described infusion pump sends back to the corrosive liquid in the returnable in the fluid reservoir automatically according to the detection signal of liquid level sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100571591A CN101221108A (en) | 2008-01-30 | 2008-01-30 | Rotating and bending corrosion fatigue testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100571591A CN101221108A (en) | 2008-01-30 | 2008-01-30 | Rotating and bending corrosion fatigue testing device |
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| CN101221108A true CN101221108A (en) | 2008-07-16 |
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| CNA2008100571591A Pending CN101221108A (en) | 2008-01-30 | 2008-01-30 | Rotating and bending corrosion fatigue testing device |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806691A (en) * | 2010-03-05 | 2010-08-18 | 湖南省湘电锅炉压力容器检验中心有限公司 | Water erosion test device |
| CN101943644A (en) * | 2010-06-25 | 2011-01-12 | 钢铁研究总院青岛海洋腐蚀研究所 | Bending force-applying support for detecting metal corrosion resistance and method thereof |
| CN103439202A (en) * | 2013-08-19 | 2013-12-11 | 北京航空航天大学 | System for testing fatigue in corrosion environment |
| CN103439199A (en) * | 2013-08-19 | 2013-12-11 | 北京航空航天大学 | System for testing fatigue crack propagation in corrosion environment |
| CN103837465A (en) * | 2014-03-07 | 2014-06-04 | 大连交通大学 | Drip-feed type corrosion environment simulation device for flexural fatigue test |
| CN104614261A (en) * | 2015-01-30 | 2015-05-13 | 中国矿业大学 | Steel wire rope bending fatigue damage monitoring system under corrosion-alternating load coupling action |
| CN105424475A (en) * | 2015-11-05 | 2016-03-23 | 中国海洋大学 | Environment simulation device and fatigue test device for test piece fatigue test |
| CN105583326A (en) * | 2016-03-20 | 2016-05-18 | 南通南铭电子有限公司 | Capacitor outgoing line bending machine and detection method thereof |
| 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 |
| CN106198248A (en) * | 2016-06-24 | 2016-12-07 | 上海交通大学 | Flywheel disc Multifunctional rotary repeated bend test system |
| CN106442291A (en) * | 2016-09-30 | 2017-02-22 | 中国石油大学(华东) | Corrosion fatigue life prediction method based on BP neural network and application |
| CN109374430A (en) * | 2018-11-24 | 2019-02-22 | 管振平 | The detection device of metal material flexural fatigue under a kind of corrosive environment |
| CN114112749A (en) * | 2021-11-24 | 2022-03-01 | 吉林大学 | Material corrosion tensile fatigue test device and method |
| WO2022152333A1 (en) * | 2021-08-19 | 2022-07-21 | MATERIÁLOVÝ A METALURGICKÝ VÝZKUM s.r.o. | Device for performing rotating bending fatigue test |
| WO2022161555A1 (en) * | 2021-08-19 | 2022-08-04 | MATERIÁLOVÝ A METALURGICKÝ VÝZKUM s.r.o. | Method of performing rotating bending fatigue test |
-
2008
- 2008-01-30 CN CNA2008100571591A patent/CN101221108A/en active Pending
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806691A (en) * | 2010-03-05 | 2010-08-18 | 湖南省湘电锅炉压力容器检验中心有限公司 | Water erosion test device |
| CN101943644A (en) * | 2010-06-25 | 2011-01-12 | 钢铁研究总院青岛海洋腐蚀研究所 | Bending force-applying support for detecting metal corrosion resistance and method thereof |
| CN103439202A (en) * | 2013-08-19 | 2013-12-11 | 北京航空航天大学 | System for testing fatigue in corrosion environment |
| CN103439199A (en) * | 2013-08-19 | 2013-12-11 | 北京航空航天大学 | System for testing fatigue crack propagation in corrosion environment |
| CN103837465A (en) * | 2014-03-07 | 2014-06-04 | 大连交通大学 | Drip-feed type corrosion environment simulation device for flexural fatigue test |
| CN104614261A (en) * | 2015-01-30 | 2015-05-13 | 中国矿业大学 | Steel wire rope bending fatigue damage monitoring system under corrosion-alternating load coupling action |
| CN105424475A (en) * | 2015-11-05 | 2016-03-23 | 中国海洋大学 | Environment simulation device and fatigue test device for test piece fatigue test |
| CN105424475B (en) * | 2015-11-05 | 2018-07-20 | 中国海洋大学 | Environment simulator and fatigue rig for test specimen fatigue test |
| 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 |
| CN105583326A (en) * | 2016-03-20 | 2016-05-18 | 南通南铭电子有限公司 | Capacitor outgoing line bending machine and detection method thereof |
| CN106198248A (en) * | 2016-06-24 | 2016-12-07 | 上海交通大学 | Flywheel disc Multifunctional rotary repeated bend test system |
| CN106198248B (en) * | 2016-06-24 | 2019-01-11 | 上海交通大学 | Flywheel disc Multifunctional rotary repeated bend test system |
| CN106442291A (en) * | 2016-09-30 | 2017-02-22 | 中国石油大学(华东) | Corrosion fatigue life prediction method based on BP neural network and application |
| CN109374430A (en) * | 2018-11-24 | 2019-02-22 | 管振平 | The detection device of metal material flexural fatigue under a kind of corrosive environment |
| CN109374430B (en) * | 2018-11-24 | 2021-01-01 | 佛山市杰欧壹凯精密机械有限公司 | Detection apparatus for metal material bending fatigue under corrosive environment |
| WO2022152333A1 (en) * | 2021-08-19 | 2022-07-21 | MATERIÁLOVÝ A METALURGICKÝ VÝZKUM s.r.o. | Device for performing rotating bending fatigue test |
| WO2022161555A1 (en) * | 2021-08-19 | 2022-08-04 | MATERIÁLOVÝ A METALURGICKÝ VÝZKUM s.r.o. | Method of performing rotating bending fatigue test |
| CN114112749A (en) * | 2021-11-24 | 2022-03-01 | 吉林大学 | Material corrosion tensile fatigue test device and method |
| CN114112749B (en) * | 2021-11-24 | 2023-08-08 | 吉林大学 | Material corrosion tensile fatigue test device and method |
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Open date: 20080716 |