1. Purpose.
The purpose of this operation method is to standardize the use of blast drying ovens for experiments and ensure the accuracy and reliability of experimental results.
2. Steps.
1.Preparation stage: check whether the blast drying oven is intact, and confirm that the box, controller, power supply and other components are not abnormal. Prepare the samples and drying medium (e.g., air, nitrogen, etc.) required for the experiment.
2.Sample placement: Place the sample on a rack inside the blast drying oven, taking care to place it evenly to avoid stacking or blocking the airflow. At the same time, the initial weight and position of the sample are recorded.
3.Turn on the blast drying oven: Connect the power supply, turn on the controller of the blast drying oven, and set the temperature, humidity and time required for the experiment. Ensure that the blower is operating normally and that there is no abnormal noise or vibration.
4.Experimental phase: Observe the sample in the blast drying oven and record its weight and color changes. Take care to control temperature and humidity to ensure that the sample does not deteriorate or burn due to overheating.
5.Data logging: During the experiment, sample weight, temperature, and humidity data were recorded at each time point. The data can be organized in the form of ** or graphs for further analysis and processing.
6.End of experiment: When the experimental time reaches the set end time, close the blast drying oven, remove the sample, and measure its final weight. At the same time, the appearance observation and property testing of the sample were carried out to evaluate its drying effect and quality.
7.Data processing and analysis: According to the experimental data, the drying rate, drying curve, residual moisture content and other information of the sample are analyzed. The drying effect of different samples under different conditions was compared, and the experimental conclusions were drawn.
8.Clean up the site: After the experiment, clean the inside and around the blast drying oven to ensure that there are no residues or contaminants. At the same time, the used instruments and equipment are inspected and maintained to ensure their normal operation.
3. Precautions.
1.When using a blast drying oven for experiments, it is important to follow laboratory safety protocols to ensure personnel safety and equipment integrity.
2.Samples should be evenly distributed in the drying oven to avoid stacking or blocking the airflow, which will affect the drying effect.