CN211318143U - Corrosion fatigue tool - Google Patents
Corrosion fatigue tool Download PDFInfo
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- CN211318143U CN211318143U CN201922146483.7U CN201922146483U CN211318143U CN 211318143 U CN211318143 U CN 211318143U CN 201922146483 U CN201922146483 U CN 201922146483U CN 211318143 U CN211318143 U CN 211318143U
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Abstract
The utility model belongs to the technical field of test equipment, concretely relates to corrosion fatigue frock. Comprises a reaction kettle and a testing machine switching device; the reaction kettle is characterized in that the kettle body of the reaction kettle is of a double-layer transparent cylindrical structure, the lower end of the outer layer is connected with a water outlet pipe of an external circulating heating source through a water inlet, and the upper end of the outer layer is connected with a water return pipe of the external circulating heating source through a water outlet; the lower end of the inner layer of the reaction kettle accommodates the sample clamping end of the switching device, and weather-proof sealant is coated at the joint of the reaction kettle and the switching device; the lower end of the switching device is a switching device testing machine clamping end which is connected with a machine body of the testing machine; the bottom of the reaction kettle is provided with a claw-shaped connecting and fixing piece for fixedly connecting the reaction kettle and the testing machine together; the top of the reaction kettle is provided with a split cover plate. The utility model discloses a design and fatigue testing machine action portion simultaneous movement's reation kettle holds the corrosive medium in reation kettle, applys periodic load to the sample by the testing machine, realizes corroding fatigue test.
Description
Technical Field
The utility model belongs to the technical field of test equipment, concretely relates to corrosion fatigue frock.
Background
The corrosion fatigue test refers to a fatigue test performed in a corrosive environment. In consideration of convenience in implementation and economic benefits, the conventional test method of the corrosion fatigue test is to firstly perform the corrosion test and then perform the fatigue test, namely the fatigue test after corrosion, which is not consistent with the actual working environment of the material or the structure in a strict sense and brings relatively large experimental error. Therefore, a machine capable of performing both corrosion and fatigue tests is needed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that solve is corrosion test with past corrosion fatigue test's test method generally to carry out corrosion test earlier, then carries out fatigue test again, corrodes back fatigue test promptly, from the stricter sense, this is inconsistent with the actual operational environment that material or structure were located, and the experimental error of bringing is also great relatively.
In order to solve the problem, the utility model provides a corrosion fatigue frock through design and fatigue testing machine action part simultaneous movement's reation kettle, holds the corrosive medium in reation kettle, applys periodic load to the experiment by the testing machine, realizes corrosion fatigue test.
In order to achieve the purpose, the utility model is realized by the following technical means, and the corrosion fatigue tool comprises a reaction kettle and a testing machine switching device; the reaction kettle is characterized in that the kettle body of the reaction kettle is of a double-layer transparent cylindrical structure, the lower end of the outer layer is connected with a water outlet pipe of an external circulating heating source through a water inlet, the upper end of the outer layer is connected with a water return pipe of the external circulating heating source through a water outlet, the outer layer is used as a water bath container for controlling temperature, the temperature of the water bath is constant through circulating heating of the external heat source, and the inner layer and the outer layer are transparent and are convenient for observing the change of; the inner layer is a container of corrosive medium, the lower end of the inner layer is used for accommodating a sample clamping end of the switching device, weather-proof sealant is coated at the joint of the reaction kettle and the switching device, and a joint is sealed to ensure that corrosive liquid does not leak; the lower end of the switching device is a switching device testing machine clamping end which is connected with a machine body of the testing machine; the bottom of the reaction kettle is provided with a claw-shaped connecting and fixing piece, the connecting and fixing piece is connected with the testing machine, and the reaction kettle and the testing machine are fixedly connected together, so that the reaction kettle and the action part of the fatigue testing machine move synchronously, relative displacement does not exist in the testing process, and a leakage point cannot be formed due to dislocation between the testing machine switching device and the reaction kettle in the testing process; the top of the reaction kettle is provided with a split cover plate, so that the deformation of the sample is not hindered, and the water bath and the corrosive liquid are prevented from leaking.
Further, the reaction kettle is made of organic glass.
Furthermore, valves are arranged at the water inlet and the water outlet, and the water inlet amount, the water inlet speed, the water outlet amount and the water outlet speed can be adjusted.
Furthermore, a temperature measuring probe is arranged in the outer layer to monitor the water bath temperature, so that real-time adjustment is facilitated.
Furthermore, an electric insulating material is applied to the contact part of the sample clamping end of the switching device and the sample, so that galvanic corrosion caused by electric connection between the switching device in a corrosive solution and the sample is avoided.
The use process of the corrosion fatigue tool is as follows:
(1) connecting one end of a sample with a sample clamping end of a switching device in the reaction kettle;
(2) the reaction kettle is fixedly connected with the testing machine through the connecting and fixing piece, so that the reaction kettle is prevented from shaking in a horizontal position;
(3) connecting the other end of the sample with a testing machine;
(4) placing a prepared corrosion solution into the inner layer of the reaction kettle, wherein the initial temperature of the corrosion solution is 2-3 ℃ higher than the test temperature;
(5) setting fatigue parameters according to test requirements, starting a testing machine and starting a test;
(6) because of heat loss of the circulating pipeline and the reaction kettle, the temperature of the reaction kettle is generally 3-5 ℃ higher than that of the test corrosion solution, and the setting temperature of an external heat source is generally 5-8 ℃ higher than that of the test corrosion solution;
(7) and after the sample reaches the cycle frequency or fails, stopping the testing machine, sequentially closing the external circulating heating device, evacuating the water bath and evacuating the corrosive liquid. And when the corrosive liquid is emptied, the corrosive liquid is prevented from being scattered on the testing machine.
The beneficial effects of the utility model reside in that:
(1) the reaction kettle which moves synchronously with the action part of the fatigue testing machine is designed, corrosive media are contained in the reaction kettle, and the corrosion fatigue test is realized.
(2) The outer layer of the reaction kettle is heated by using a water bath, and the temperature control of a medium of the corrosion reaction can be effectively realized through the water bath.
(3) The reaction kettle and the action part of the fatigue testing machine move synchronously, so that the leakage of corrosive liquid in the testing process can be avoided.
(4) And an electric insulating material is applied to the contact part of the sample clamping end and the sample, so that galvanic corrosion caused by electric connection between the switching device in the corrosive solution and the sample is avoided.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the split structure of the reaction kettle of the present invention;
fig. 3 is a schematic structural diagram of the adapter of the present invention;
the device comprises a reaction kettle 1, a water inlet 11, a water outlet 12, a cover plate 13, a testing machine 2, a switching device sample clamping end 21, a switching device testing machine clamping end 22, a connecting fixing piece 23, an external circulation heating source water outlet pipe 3, an external circulation heating source water return pipe 4 and a temperature measuring probe 5.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1:
a corrosion fatigue tool comprises a reaction kettle 1 and a testing machine switching device; the reaction kettle is characterized in that the kettle body of the reaction kettle is of a double-layer transparent cylindrical structure, the lower end of the outer layer is connected with an external circulating heating source water outlet pipe 3 through a water inlet 11, the upper end of the outer layer is connected with an external circulating heating source water return pipe 4 through a water outlet 12, the outer layer is used as a container of water bath for temperature control, the temperature of the water bath is constant through circulating heating of an external heat source, and the inner layer and the outer layer are both transparent and are convenient for observing the change of a corrosion liquid level; the inner layer is a container of corrosive medium, the lower end of the inner layer is used for accommodating a sample clamping end 21 of the switching device and comprises a U-shaped chuck and a pin, and the pin sequentially penetrates through the U-shaped chuck and a pin hole at the end part of the sample to realize the connection and fixation of the sample; weather-proof sealant is coated at the joint of the reaction kettle and the switching device, and the joint is sealed to ensure that corrosive liquid does not leak; the lower end of the switching device is a switching device testing machine clamping end 22 which is connected with the body of the testing machine 2; the bottom of the reaction kettle is provided with a claw-shaped connecting and fixing piece, the connecting and fixing piece is connected with the testing machine, and the reaction kettle and the testing machine are fixedly connected together, so that the reaction kettle and the action part of the fatigue testing machine move synchronously, relative displacement does not exist in the testing process, and a leakage point cannot be formed due to dislocation between the testing machine switching device and the reaction kettle in the testing process; the top of the reaction kettle is provided with a split cover plate 13, so that the deformation of the sample is not hindered, and the water bath and the corrosive liquid are prevented from leaking.
And an electric insulating material is applied to the contact part of the sample clamping end of the switching device and the sample, so that galvanic corrosion caused by electric connection between the switching device in a corrosive solution and the sample is avoided.
Example 2:
the reaction kettle is made of organic glass.
The rest is the same as in example 1.
Example 3:
valves are arranged at the water inlet 11 and the water outlet 12, and the water inlet quantity, the water inlet speed, the water outlet quantity and the water outlet speed can be adjusted.
The rest is the same as in example 1-2.
Example 4:
the inner layer is provided with a temperature probe 5 which is connected with a temperature meter through a circuit to monitor the water bath temperature and is convenient for real-time adjustment.
The rest is the same as any of examples 1 to 3.
The use process of the corrosion fatigue tool is as follows:
(1) connecting one end of a sample with a sample clamping end of a switching device in the reaction kettle;
(2) the reaction kettle is fixedly connected with the testing machine through the connecting and fixing piece, so that the reaction kettle is prevented from shaking in a horizontal position;
(3) connecting the other end of the sample with a testing machine;
(4) placing a prepared corrosion solution into the inner layer of the reaction kettle, wherein the initial temperature of the corrosion solution is 2-3 ℃ higher than the test temperature;
(5) setting fatigue parameters according to test requirements, starting a testing machine and starting a test;
(6) because of heat loss of the circulating pipeline and the reaction kettle, the temperature of the reaction kettle is generally 3-5 ℃ higher than that of the test corrosion solution, and the setting temperature of an external heat source is generally 5-8 ℃ higher than that of the test corrosion solution;
(7) and after the sample reaches the cycle frequency or fails, stopping the testing machine, sequentially closing the external circulating heating device, evacuating the water bath and evacuating the corrosive liquid. And when the corrosive liquid is emptied, the corrosive liquid is prevented from being scattered on the testing machine.
Claims (5)
1. The utility model provides a corrosion fatigue frock which characterized in that: comprises a reaction kettle and a testing machine switching device; the reaction kettle is characterized in that the kettle body of the reaction kettle is of a double-layer transparent cylindrical structure, the lower end of the outer layer is connected with a water outlet pipe of an external circulating heating source through a water inlet, and the upper end of the outer layer is connected with a water return pipe of the external circulating heating source through a water outlet; the lower end of the inner layer is used for accommodating a sample clamping end of the switching device, and weather-proof sealant is coated at the joint of the reaction kettle and the switching device; the lower end of the switching device is a switching device testing machine clamping end which is connected with a machine body of the testing machine; the bottom of the reaction kettle is provided with a claw-shaped connecting and fixing piece which is connected with the testing machine; the top of the reaction kettle is provided with a split cover plate.
2. The corrosion fatigue tool of claim 1, wherein: the reaction kettle is made of organic glass.
3. The corrosion fatigue tool of claim 1, wherein: valves are arranged at the water inlet and the water outlet.
4. The corrosion fatigue tool of claim 1, wherein: the outer layer is internally provided with a temperature probe.
5. The corrosion fatigue tool of claim 1, wherein: and applying an electric insulating material to the contact part of the sample clamping end and the sample end of the adapter device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922146483.7U CN211318143U (en) | 2019-12-03 | 2019-12-03 | Corrosion fatigue tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922146483.7U CN211318143U (en) | 2019-12-03 | 2019-12-03 | Corrosion fatigue tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211318143U true CN211318143U (en) | 2020-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922146483.7U Active CN211318143U (en) | 2019-12-03 | 2019-12-03 | Corrosion fatigue tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211318143U (en) |
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2019
- 2019-12-03 CN CN201922146483.7U patent/CN211318143U/en active Active
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