Friction load coupling experimental device and friction load coupling experimental method in marine climate environment

[0063] example 1:

[0064] Alloy steel samples, the size is Φ80×5mm, the surface is polished by ordinary grinder, and the 6 samples are numbered and placed at the same time figure 1 In the 6 sample clamps of the middle sample plate, set the load, the rotation speed of the sample pin on the friction pair and the wear time of each sample, and then start loading to wear the No. 1 sample, and stop the friction pair movement after 30 minutes. The sample pin leaves No. 1 sample, moves to the top of No. 2 sample, repeats the above process in turn and transfers to other samples. After each sample undergoes 10 cycles, it can be removed from the sample holder in turn, and passed Use a digital camera or stereo microscope to observe the changes of the surface before and after corrosion and wear, or use a precision balance to weigh the changes in the weight of the sample before and after the test, and then re-clamp the sample back into the sample fixture, and perform the next round of corrosion and wear. By repeating this process, the change rate of corrosion and wear of the friction pair over time and the change law of friction coefficient with temperature, humidity and time can be obtained in the real atmosphere.

[0065] Example 2:

[0066] The alloy steel samples, the size is Φ80×5mm, the surface is polished by an ordinary grinder, the 6 samples are divided into two groups, and they are treated by different heat treatment processes. After the 6 samples are numbered, they are placed in the figure 1 Among the 6 sample holders in the middle sample tray, No. 1, 2 and 3 are used as one group, and No. 4, 5 and 6 are used as another group. Set the load, the rotation speed of the sample pin on the friction pair and the wear time of each sample, and then start loading to wear the No. 1 sample. After 30 minutes, stop the movement of the friction pair. The upper sample pin leaves No. 1 sample and moves to 2. Directly above the number sample, repeat the above process in turn and transfer to other samples. After each sample has undergone 20 cycles, it can be removed from the sample fixture in turn, and the surface before and after corrosion and abrasion can be observed through a digital camera or stereo microscope. Change, or use a precision balance to weigh the weight change of the sample before and after the test, then re-clamp the sample back into the sample fixture, and perform the next round of corrosion wear. Repeat the process and average the data of the two groups. Finally, the change rate of corrosion and wear of the two sets of friction pairs in real atmospheric environment and the change of friction coefficient with temperature, humidity and time can be obtained, and the heat treatment can be obtained. The influence of the process on corrosion and wear.

[0067] Example 3:

[0068] LC4 aluminum alloy samples, the size is Φ60×5mm, 3 samples as a set (numbered 1, 3, 5), the surface is polished by a common grinder, and the 3 samples are polished and anodized. Comparison group (numbered 2, 4, 6), after numbering 6 samples, place them in figure 1 In the 6 sample clamps of the middle sample plate, set the load, the rotation speed of the sample pin on the friction pair and the wear time of each sample, and then start loading to wear the No. 1 sample, and stop the friction pair movement after 30 minutes. The sample pin leaves No. 1 sample, moves to the top of No. 2 sample, repeats the above process in turn and transfers to other samples. After each sample undergoes 10 cycles, it can be removed from the sample holder in turn, and passed Use a digital camera or stereo microscope to observe the changes in the surface before and after corrosion and wear, or use a precision balance to weigh the changes in the weight of the sample before and after the test, and then re-clamp the sample back into the sample fixture, and perform the next round of corrosion and wear. Stop the test after this cycle. After cleaning the corrosion products on the surface of the sample, use a scanning electron microscope to observe the difference in the morphology of the aluminum alloy surface with or without anodization. At the same time, use the electrochemical test system to compare the self-corrosion of the aluminum alloy with or without anodization. Potential and current density, the data of the two groups are calculated and averaged separately, and finally the change rate of the corrosion and wear of the two groups of friction pairs with time in the real atmospheric environment, the friction coefficient with temperature, humidity and time, and corrosion can be obtained. The difference in self-corrosion potential and current density after abrasion can infer the average annual corrosion and wear rate of aluminum alloy, and the effect of aluminum alloy anodic oxidation on corrosion and wear is obtained.