CN209945958U - A environment device for metal material corrosion fatigue test - Google Patents
A environment device for metal material corrosion fatigue test Download PDFInfo
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- CN209945958U CN209945958U CN201920288003.8U CN201920288003U CN209945958U CN 209945958 U CN209945958 U CN 209945958U CN 201920288003 U CN201920288003 U CN 201920288003U CN 209945958 U CN209945958 U CN 209945958U
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Abstract
The utility model relates to an environment device for metal material corrosion fatigue test belongs to metallurgical industry metal material corrosion fatigue test equipment technical field. The technical scheme is as follows: an environment box upper cover (2) is arranged at the top of the environment box (9), a sleeve (12) is arranged at the bottom of the environment box (9), an external thread is arranged on the sleeve (12), a rubber plug fixing nut (11) is in threaded connection with the sleeve (12), and holes are respectively formed in a rubber plug (10) and the environment box upper cover (2); controllable flow peristaltic pump (7) are connected through water inlet pipe and water inlet (8) of environment case (9), and solution storage container (13) are connected through delivery port (3) of wet return and environment case (9), are equipped with filter unit (4) on the wet return, be equipped with constant temperature unit (5) and pH value in solution storage container (13) and detect meter (6). The utility model has the advantages that: the sealing performance is good; the real-time monitoring of key parameters such as flow, temperature, pH value and the like can be realized.
Description
Technical Field
The utility model relates to an environment device for metal material corrosion fatigue test belongs to metallurgical industry metal material corrosion fatigue test equipment technical field.
Background
The dual functions of corrosion and fatigue of metal materials are main failure modes of engineering structural materials, and particularly, the performance of the metal materials in the fields of aerospace, ocean engineering, nuclear power and the like is more obvious, the performance evaluation of the metal materials under the environmental working condition is more and more emphasized in the industry, the traditional corrosion and fatigue single evaluation cannot meet the requirements, and the fatigue performance test under the corrosion environment is more and more important.
The key point of the metal material corrosion fatigue test is the accurate simulation of the corrosion environment. At present, a plurality of environment simulation devices for corrosion fatigue testing are published at home and abroad, and the problems that corrosion liquid is easy to leak, test parameters cannot be monitored in real time and the like exist, so that the accuracy of test results is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an environment device for metal material corrosion fatigue test, the leakproofness is good, can realize flow, temperature and pH value isoparametric real-time supervision and adjustment, improves the accuracy of test result, solves the problem that exists among the background art.
The technical scheme of the utility model is that:
the utility model provides an environment device for metal material corrosion fatigue test, contains environment case upper cover, delivery port, filter unit, constant temperature unit, pH value detector, controllable flow peristaltic pump, water inlet, environment case, rubber buffer fixation nut, sleeve pipe and solution storage container, and the top of environment case is equipped with environment case upper cover, and the bottom of environment case is equipped with the sleeve pipe that communicates with the environment case, the sleeve pipe becomes integrative structure with the environment case, and the sleeve pipe is equipped with the external screw thread, and rubber buffer fixation nut threaded connection is on the sleeve pipe, and the rubber buffer is in the sleeve pipe, covers on rubber buffer and the environment case respectively to be equipped with the hole with sample matched with; the environment box is provided with a water inlet and a water outlet, the controllable flow peristaltic pump is connected with the water inlet of the environment box through a water inlet pipe, the solution storage container is connected with the water outlet of the environment box through a water return pipe, a filtering unit is arranged on the water return pipe, and a constant temperature unit and a pH value detector are arranged in the solution storage container.
The rubber buffer and the center line of the hole on the upper cover of the environment box coincide.
The environment box is a cylindrical container made of acid and alkali resistant transparent materials, and the solution storage container is a corrosion-resistant container.
The water inlet of the environment box is arranged at the lower part of the environment box, and the water outlet of the environment box is arranged at the upper part of the environment box.
The constant temperature unit in the solution storage container comprises a heating device, a circulating pump, a thermometer and a corrosion-resistant conduit, one end of the corrosion-resistant conduit is connected with the flow-controllable peristaltic pump, and the other end of the corrosion-resistant conduit is connected with the circulating pump.
The controllable flow peristaltic pump, the heating device in the constant temperature unit and the filtering unit in the water return pipe are all known technologies in the field, wherein the controllable flow peristaltic pump has a flow regulation function and is mainly used for providing circulating power for the solution; the heating device in the constant temperature unit is mainly used for heating the solution in the solution storage container to keep the solution at a certain constant temperature; the main function of the filter unit in the return pipe is to ensure good cleanliness of the liquid flowing into the solution storage container.
Adopt the utility model discloses, concrete test process as follows:
① processing the sample according to the national standard, and polishing the surface of the sample;
② placing the sample in an ultrasonic container containing acetone, cleaning for 10-15 min, and cleaning the surface of the sample;
③, fixing two ends of the sample in the holes of the upper cover and the rubber plug of the environment box respectively, and smearing silica gel between the sample and the rubber plug and between the rubber plug and the sleeve for sealing;
④ the rubber plug fixing nut on the sleeve is screwed tightly;
⑤ mounting the two ends of the sample on a fatigue testing machine;
⑥ adding corrosive liquid into the solution storage container, wherein the salinity of the corrosive liquid is 3.34% by mass, the specific gravity of the corrosive liquid is 1.02-1.04, the pH value is 7.8-8.5, and the temperature is 30-42 ℃;
⑦ the flow-controllable peristaltic pump and fatigue tester are started to carry out corrosion fatigue test on the sample according to the national standard until the test is finished.
The utility model has the advantages that: carry out many times leak protection between sample and the environment case through rubber buffer, rubber buffer fixation nut and silica gel and seal, the leakproofness is good. The flow-controllable peristaltic pump not only provides liquid circulation power, but also has the flow regulation function; the whole system can realize real-time monitoring of key parameters such as flow, temperature, pH value and the like, and is convenient to adjust in real time according to actual conditions in a test, so that the test process is more in line with standard requirements.
Drawings
FIG. 1 is a partial schematic view of the present invention;
fig. 2 is a sectional view of the present invention;
in the figure: the device comprises a sample 1, an environment box upper cover 2, a water outlet 3, a filtering unit 4, a constant temperature unit 5, a pH value detector 6, a flow-controllable peristaltic pump 7, a liquid flow direction adjusting button 7-1, a liquid flow adjusting button 7-2, a water inlet 8, an environment box 9, a rubber plug 10, a rubber plug fixing nut 11, a sleeve 12 and a solution storage container 13.
Detailed Description
The invention will be further explained by way of example with reference to the accompanying drawings.
Referring to the attached drawings 1 and 2, an environment device for a metal material corrosion fatigue test comprises an environment box upper cover 2, a water outlet 3, a filtering unit 4, a constant temperature unit 5, a pH value detector 6, a controllable flow peristaltic pump 7, a water inlet 8, an environment box 9, a rubber plug 10, a rubber plug fixing nut 11, a sleeve 12 and a solution storage container 13, wherein the environment box upper cover 2 is arranged at the top of the environment box 9, the sleeve 12 communicated with the environment box 9 is arranged at the bottom of the environment box 9, the sleeve 12 and the environment box 9 are of an integral structure, the sleeve 12 is provided with external threads, the rubber plug fixing nut 11 is in threaded connection with the sleeve 12, the rubber plug 10 is plugged in the sleeve 12, and the rubber plug 10 and the environment box upper cover 2 are respectively provided with holes matched with a sample; the environment box 9 is equipped with water inlet 8 and delivery port 3, and controllable flow peristaltic pump 7 passes through the inlet tube to be connected with the water inlet 8 of environment box 9, and solution storage container 13 passes through the wet return to be connected with the delivery port 3 of environment box 9, is equipped with filter unit 4 on the wet return, be equipped with constant temperature unit 5 and pH value in the solution storage container 13 and detect meter 6.
In this embodiment, referring to fig. 1 and 2, the environmental chamber 9 is a cylindrical container made of acid-and alkali-resistant transparent material, and the solution storage container 13 is a corrosion-resistant container. The water inlet 8 of the environment tank 9 is arranged at the lower part of the environment tank 9, and the water outlet 3 of the environment tank 9 is arranged at the upper part of the environment tank 9. The center lines of the rubber plug 10 and the hole on the upper cover 2 of the environmental chamber are coincident.
The flow controllable peristaltic pump 7 has the functions of flow direction regulation and flow regulation and is connected with a water inlet 8 of the environment box 9 through a rubber pipe; the filtering unit 4 is connected with the water outlet 3 of the environment box 9 through a rubber pipe. The solution pH meter 6 and the thermostatic unit 5 are installed in the solution storage container 13. The filter unit 4 is installed on the return line to ensure good cleanliness of the liquid flowing into the solution storage container 13. The constant temperature unit 5 in the solution storage container 13 comprises a heating device, a circulating pump, a thermometer and a corrosion-resistant conduit, one end of the corrosion-resistant conduit is connected with the flow-controllable peristaltic pump 7, and the other end of the corrosion-resistant conduit is connected with the circulating pump.
The solution flows through the solution storage container 13 → the controlled flow peristaltic pump 7 → the water inlet pipe → the environmental tank 9 → the water return pipe → the filter unit 4 → the solution storage container 13.
Processing and manufacturing of a sample: the processing of the corrosion fatigue test sample is more critical, the test sample is processed to strictly meet the requirements of GB/T20120.0-2006, the test sample is processed into a dumbbell-shaped round bar, the size of the test sample is phi 5 mm-phi 18mm, and the surface polishing treatment is carried out. Before the test, degreasing treatment is carried out, acetone is used for cleaning in an ultrasonic container for 10-15 minutes, and then electric air blowing is used for blow-drying the surface of the sample.
Etching liquid in the solution storage container 13: the seawater comprises 3.34% of salinity, 1.02-1.04 of specific gravity, 7.8-8.5 of pH and 30-42 ℃ of temperature.
During the test, fix the upper end of sample 1 in the hole of environment case upper cover 2, pass the hole in rubber buffer 10 with the lower extreme of sample 1 to in the sleeve pipe 12 of inserting environment case 9 with the whole of sample 1 and rubber buffer 10, rubber buffer 10 realizes once leak protection function through the extrusion with sleeve pipe 12 of environment case 9 bottom. Rubber buffer fixation nut 11 is through screwing up on sleeve pipe 12 of environment case 9, realizes the secondary leak protection, all scribbles 704 silica gel between sample 1 and the rubber buffer 10 and between rubber buffer 10 and sleeve pipe 12 and seals, and finally, installs the both ends of sample on fatigue test machine to carry out fatigue test according to national standard can.
Claims (5)
1. An environment device for a metal material corrosion fatigue test is characterized in that: the device comprises an environment box upper cover (2), a water outlet (3), a filtering unit (4), a constant temperature unit (5), a pH value detector (6), a controllable flow peristaltic pump (7), a water inlet (8), an environment box (9), a rubber plug (10), a rubber plug fixing nut (11), a sleeve (12) and a solution storage container (13), wherein the environment box upper cover (2) is arranged at the top of the environment box (9), the sleeve (12) communicated with the environment box (9) is arranged at the bottom of the environment box (9), the sleeve (12) and the environment box (9) form an integrated structure, the sleeve (12) is provided with external threads, the rubber plug fixing nut (11) is in the sleeve (12) in a threaded manner, and the rubber plug (10) is plugged in the sleeve (12), and holes matched with a sample are respectively formed in the rubber plug (10) and the environment box upper cover (2); the environment box (9) is equipped with water inlet (8) and delivery port (3), and controllable flow peristaltic pump (7) are connected through inlet tube and water inlet (8) of environment box (9), and solution storage container (13) are connected with delivery port (3) of environment box (9) through the wet return, are equipped with filter unit (4) on the wet return, be equipped with constant temperature unit (5) and pH value in solution storage container (13) and detect meter (6).
2. The environmental device for the corrosion fatigue test of the metal material according to claim 1, wherein: the center lines of the holes in the rubber plug (10) and the environmental box upper cover (2) are overlapped.
3. The environmental device for the corrosion fatigue test of the metal material according to claim 1, wherein: the environment box (9) is a cylindrical container made of acid and alkali resistant transparent materials, and the solution storage container (13) is a corrosion-resistant container.
4. The environmental device for the corrosion fatigue test of the metal material according to claim 1, wherein: a water inlet (8) of the environment box (9) is arranged at the lower part of the environment box (9), and a water outlet (3) of the environment box (9) is arranged at the upper part of the environment box (9).
5. The environmental device for the corrosion fatigue test of the metal material according to claim 1, wherein: the constant temperature unit (5) in the solution storage container (13) comprises a heating device, a circulating pump, a thermometer and a corrosion-resistant guide pipe, one end of the corrosion-resistant guide pipe is connected with the flow-controllable peristaltic pump (7), and the other end of the corrosion-resistant guide pipe is connected with the circulating pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920288003.8U CN209945958U (en) | 2019-03-07 | 2019-03-07 | A environment device for metal material corrosion fatigue test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920288003.8U CN209945958U (en) | 2019-03-07 | 2019-03-07 | A environment device for metal material corrosion fatigue test |
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| CN209945958U true CN209945958U (en) | 2020-01-14 |
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| CN201920288003.8U Active CN209945958U (en) | 2019-03-07 | 2019-03-07 | A environment device for metal material corrosion fatigue test |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900629A (en) * | 2019-03-07 | 2019-06-18 | 河钢股份有限公司 | A kind of environmental device and test method for metallic material corrosion fatigue test |
| CN113848137A (en) * | 2021-09-22 | 2021-12-28 | 天津大学 | Submarine pipeline corrosion fatigue test device capable of dynamically adjusting environmental parameters |
-
2019
- 2019-03-07 CN CN201920288003.8U patent/CN209945958U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900629A (en) * | 2019-03-07 | 2019-06-18 | 河钢股份有限公司 | A kind of environmental device and test method for metallic material corrosion fatigue test |
| CN109900629B (en) * | 2019-03-07 | 2024-03-22 | 河钢股份有限公司 | Environment device and test method for corrosion fatigue test of metal material |
| CN113848137A (en) * | 2021-09-22 | 2021-12-28 | 天津大学 | Submarine pipeline corrosion fatigue test device capable of dynamically adjusting environmental parameters |
| CN113848137B (en) * | 2021-09-22 | 2024-04-12 | 天津大学 | Submarine pipeline corrosion fatigue test device capable of dynamically adjusting environmental parameters |
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