Coal asphalt manufacturer Shen Min
What are the influencing factors of coal pitch ductility experiment?Let's take a closer look.
1. Temperature. Temperature is one of the important factors affecting the ductility test of coal pitch. At low temperatures, the ductility of coal pitch is generally low. As the temperature increases, the ductility of coal pitch usually increases. This is because the increase in temperature will reduce the viscosity of the coal pitch and increase the fluidity, which will increase the ductility. Therefore, when carrying out the coal pitch ductility test, the appropriate temperature should be selected to ensure the accuracy and reliability of the experimental results.
Second, stress. Stress is also one of the factors affecting the ductility of coal pitch. Within a certain range, with the increase of stress, the ductility of coal pitch will increase accordingly. In this case, the stress will increase the interaction force between the molecules of the coal pitch, making it more compact, thus increasing the ductility. However, when the stress exceeds a certain range, the ductility of the coal pitch will decrease, because the excessive stress will cause the coal pitch to break. Therefore, when carrying out the coal pitch ductility test, the appropriate stress range should be selected to ensure the accuracy of the experimental results.
3. Sample purity.
The effect of sample purity on the ductility test results of coal pitch is also very significant. If the coal pitch is mixed with other substances, such as moisture, sand and gravel, it will reduce its ductility. Therefore, before the coal pitch ductility experiment, the sample should be fully purified to ensure that its purity meets the experimental requirements.
Fourth, the test rate.
The influence of the test rate on the ductility of coal pitch cannot be ignored. Within a certain range, with the increase of the test rate, the ductility of coal pitch will increase accordingly. This is because the higher test rate will cause the coal pitch to complete the deformation in a shorter time, thus increasing the ductility. However, when the test rate is too high, the ductility of the coal pitch will be reduced, because too high the test rate will cause the coal pitch to break during the deformation process. Therefore, when carrying out the coal pitch ductility test, the appropriate test rate should be selected to ensure the accuracy of the experimental results.
5. Sample preparation.
Specimen preparation is one of the important aspects of coal pitch ductility test. The method of sample preparation, preparation conditions, and operation details during the preparation process will all affect the experimental results. Therefore, in the process of sample preparation, the operation should be carried out in strict accordance with the specified methods and conditions to ensure the accuracy and consistency of the test.
6. Experimental environment.
The influence of the experimental environment on the experimental results of coal pitch ductility should not be ignored. For example, factors such as ambient humidity and wind speed can all have an impact on the results. Therefore, the stability and suitability of the experimental environmental conditions should be ensured when the coal pitch ductility test is carried out to obtain accurate experimental results.
Therefore, these factors should be strictly controlled during the experiment to ensure the accuracy and reliability of the experimental results.